/* =========================================================
   APP-05 — ONLINE EDUCATION PLATFORM
   EduNexa
   Complete Stylesheet
   Blue + Cyan + Yellow Visual System
========================================================= */


/* =========================================================
   01. ROOT VARIABLES
========================================================= */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --primary-soft: rgba(37, 99, 235, 0.10);
    --primary-glow: rgba(37, 99, 235, 0.25);

    --cyan: #06b6d4;
    --cyan-dark: #0891b2;
    --cyan-soft: rgba(6, 182, 212, 0.10);

    --yellow: #f59e0b;
    --yellow-dark: #d97706;
    --yellow-soft: rgba(245, 158, 11, 0.12);

    --green: #10b981;
    --green-soft: rgba(16, 185, 129, 0.10);

    --purple: #8b5cf6;
    --purple-soft: rgba(139, 92, 246, 0.10);

    --red: #ef4444;
    --red-soft: rgba(239, 68, 68, 0.10);

    --white: #ffffff;
    --black: #0f172a;

    --bg: #f5f7fb;
    --bg-secondary: #ffffff;
    --surface: #ffffff;
    --surface-hover: #f8fafc;

    --text: #111827;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    --border: #e5e7eb;
    --border-light: #eef2f7;

    --sidebar-width: 260px;
    --header-height: 82px;

    --radius-xs: 8px;
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 26px;
    --radius-full: 999px;

    --shadow-xs: 0 2px 8px rgba(15, 23, 42, 0.04);
    --shadow-sm: 0 6px 20px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);

    --transition-fast: 0.18s ease;
    --transition: 0.28s ease;
    --transition-slow: 0.45s ease;

    --font-body: "DM Sans", sans-serif;
    --font-heading: "Plus Jakarta Sans", sans-serif;
}


/* =========================================================
   DARK MODE VARIABLES
========================================================= */

body.dark-mode {
    --bg: #080d16;
    --bg-secondary: #0d1420;
    --surface: #111a28;
    --surface-hover: #172234;

    --text: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border: rgba(148, 163, 184, 0.12);
    --border-light: rgba(148, 163, 184, 0.08);

    --shadow-xs: 0 2px 8px rgba(0, 0, 0, 0.16);
    --shadow-sm: 0 6px 20px rgba(0, 0, 0, 0.18);
    --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.22);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.30);
}


/* =========================================================
   02. RESET
========================================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    transition:
        background var(--transition),
        color var(--transition);
}

body.sidebar-open,
body.search-open,
body.modal-open {
    overflow: hidden;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    border: 0;
    background: none;
    color: inherit;
    cursor: pointer;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

ul,
ol {
    list-style: none;
}


/* =========================================================
   03. SCROLLBAR
========================================================= */

::-webkit-scrollbar {
    width: 7px;
    height: 7px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: var(--radius-full);
}

body.dark-mode ::-webkit-scrollbar-thumb {
    background: #334155;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}


/* =========================================================
   04. PAGE LOADER
========================================================= */

.page-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    background: var(--bg);
    opacity: 1;
    visibility: visible;
    transition:
        opacity 0.5s ease,
        visibility 0.5s ease;
}

body.app-ready .page-loader {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
}

.loader-icon {
    display: grid;
    width: 46px;
    height: 46px;
    place-items: center;
    border-radius: 14px;
    color: var(--white);
    background: linear-gradient(
        135deg,
        var(--primary),
        var(--cyan)
    );
    box-shadow: 0 10px 30px var(--primary-glow);
}

.loader-spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: loaderSpin 0.8s linear infinite;
}

@keyframes loaderSpin {
    to {
        transform: rotate(360deg);
    }
}


/* =========================================================
   05. APP WRAPPER
========================================================= */

.app-wrapper {
    min-height: 100vh;
}


/* =========================================================
   06. SIDEBAR
========================================================= */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--surface);
    border-right: 1px solid var(--border);
    transition:
        transform var(--transition),
        background var(--transition),
        border-color var(--transition);
}

.sidebar-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 24px 16px 18px;
    overflow-y: auto;
}


/* Sidebar Header */

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 50px;
    margin-bottom: 30px;
    padding: 0 8px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
}

.brand-icon {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    flex: 0 0 40px;
    border-radius: 12px;
    color: var(--white);
    background: linear-gradient(
        135deg,
        var(--primary),
        var(--cyan)
    );
    box-shadow: 0 8px 20px var(--primary-glow);
    font-size: 17px;
}

.brand-text {
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 1.16rem;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.brand-text span {
    color: var(--primary);
}

.sidebar-close {
    display: none;
    width: 36px;
    height: 36px;
    place-items: center;
    border-radius: 10px;
    color: var(--text-secondary);
    transition:
        background var(--transition-fast),
        color var(--transition-fast);
}

.sidebar-close:hover {
    color: var(--text);
    background: var(--surface-hover);
}


/* Sidebar Navigation */

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.nav-label {
    margin: 4px 9px 10px;
    color: var(--text-muted);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.secondary-label {
    margin-top: 25px;
}

.nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 46px;
    padding: 0 12px;
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 0.86rem;
    font-weight: 600;
    transition:
        color var(--transition-fast),
        background var(--transition-fast),
        transform var(--transition-fast);
}

.nav-link:hover {
    color: var(--text);
    background: var(--surface-hover);
    transform: translateX(2px);
}

.nav-link.active {
    color: var(--primary);
    background: var(--primary-soft);
}

.nav-link.active::before {
    position: absolute;
    left: 0;
    width: 3px;
    height: 21px;
    border-radius: 0 5px 5px 0;
    background: var(--primary);
    content: "";
}

.nav-icon {
    display: grid;
    width: 24px;
    height: 24px;
    place-items: center;
    font-size: 14px;
}

.nav-badge {
    min-width: 22px;
    margin-left: auto;
    padding: 2px 6px;
    border-radius: 7px;
    color: var(--primary);
    background: var(--primary-soft);
    font-size: 0.68rem;
    font-weight: 800;
    text-align: center;
}

.nav-badge.warning {
    color: var(--yellow-dark);
    background: var(--yellow-soft);
}


/* Sidebar Learning Card */

.sidebar-learning-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    margin: auto 3px 18px;
    padding: 14px 12px;
    overflow: hidden;
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: 15px;
    background:
        linear-gradient(
            135deg,
            var(--primary-soft),
            var(--cyan-soft)
        );
}

.learning-card-icon {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    flex: 0 0 34px;
    border-radius: 10px;
    color: var(--yellow);
    background: var(--yellow-soft);
    font-size: 13px;
}

.learning-card-content {
    min-width: 0;
}

.learning-card-content strong {
    display: block;
    color: var(--text);
    font-size: 0.76rem;
    font-weight: 700;
}

.learning-card-content p {
    margin-top: 2px;
    color: var(--text-secondary);
    font-size: 0.64rem;
    line-height: 1.4;
}

.learning-streak {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-left: auto;
}

.learning-streak span {
    color: var(--primary);
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 800;
    line-height: 1;
}

.learning-streak small {
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 0.55rem;
}


/* Sidebar Footer */

.sidebar-help {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 8px;
    color: var(--text-secondary);
}

.help-icon {
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    flex: 0 0 32px;
    border-radius: 9px;
    background: var(--surface-hover);
}

.sidebar-help strong,
.sidebar-help span {
    display: block;
}

.sidebar-help strong {
    color: var(--text);
    font-size: 0.72rem;
}

.sidebar-help span {
    font-size: 0.61rem;
}


/* Sidebar Overlay */

.sidebar-overlay {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: rgba(15, 23, 42, 0.48);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--transition),
        visibility var(--transition);
    backdrop-filter: blur(3px);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}


/* =========================================================
   07. MAIN CONTENT
========================================================= */

.main-content {
    min-height: 100vh;
    margin-left: var(--sidebar-width);
    background: var(--bg);
    transition: background var(--transition);
}


/* =========================================================
   08. TOP HEADER
========================================================= */

.top-header {
    position: sticky;
    top: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-height);
    padding: 14px 34px;
    border-bottom: 1px solid var(--border);
    background: color-mix(
        in srgb,
        var(--bg) 88%,
        transparent
    );
    backdrop-filter: blur(18px);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 11px;
    color: var(--text-secondary);
    background: var(--surface);
}

.page-heading .greeting {
    display: block;
    margin-bottom: 1px;
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 600;
}

.page-heading h1 {
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 1.16rem;
    font-weight: 800;
    letter-spacing: -0.035em;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-action-wrapper,
.profile-wrapper {
    position: relative;
}

.header-action {
    position: relative;
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    border: 1px solid transparent;
    border-radius: 11px;
    color: var(--text-secondary);
    background: transparent;
    transition:
        color var(--transition-fast),
        background var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast);
}

.header-action:hover {
    color: var(--primary);
    border-color: var(--border);
    background: var(--surface);
    transform: translateY(-1px);
}

.theme-icon-light {
    display: none;
}

body.dark-mode .theme-icon-dark {
    display: none;
}

body.dark-mode .theme-icon-light {
    display: inline-block;
}

.notification-dot {
    position: absolute;
    top: 7px;
    right: 7px;
    display: grid;
    width: 15px;
    height: 15px;
    place-items: center;
    border: 2px solid var(--bg);
    border-radius: 50%;
    color: var(--white);
    background: var(--red);
    font-size: 0.47rem;
    font-weight: 800;
}

.notification-dot[hidden] {
    display: none;
}


/* Profile */

.profile-button {
    display: flex;
    align-items: center;
    gap: 9px;
    min-height: 42px;
    margin-left: 5px;
    padding: 4px 7px 4px 4px;
    border: 1px solid transparent;
    border-radius: 13px;
    transition:
        background var(--transition-fast),
        border-color var(--transition-fast);
}

.profile-button:hover {
    border-color: var(--border);
    background: var(--surface);
}

.profile-avatar {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 10px;
    color: var(--white);
    background: linear-gradient(
        135deg,
        var(--primary),
        var(--cyan)
    );
    font-size: 0.64rem;
    font-weight: 800;
}

.profile-avatar.large {
    width: 42px;
    height: 42px;
    border-radius: 12px;
}

.profile-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.profile-info strong {
    color: var(--text);
    font-size: 0.72rem;
    font-weight: 700;
}

.profile-info small {
    color: var(--text-muted);
    font-size: 0.6rem;
}

.profile-button > i {
    margin-left: 2px;
    color: var(--text-muted);
    font-size: 0.57rem;
}


/* =========================================================
   09. NOTIFICATION PANEL
========================================================= */

.notification-panel {
    position: absolute;
    top: calc(100% + 12px);
    right: -55px;
    z-index: 1000;
    width: 360px;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transform-origin: top right;
    transition:
        opacity var(--transition),
        visibility var(--transition),
        transform var(--transition);
}

.notification-panel.active,
.notification-panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.notification-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 18px;
    border-bottom: 1px solid var(--border);
}

.notification-header h3 {
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.86rem;
    font-weight: 800;
}

.notification-header span {
    display: block;
    margin-top: 3px;
    color: var(--text-muted);
    font-size: 0.65rem;
}

.notification-close {
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    border-radius: 8px;
    color: var(--text-muted);
    transition:
        background var(--transition-fast),
        color var(--transition-fast);
}

.notification-close:hover {
    color: var(--text);
    background: var(--surface-hover);
}

.notification-list {
    max-height: 340px;
    overflow-y: auto;
}

.notification-item {
    display: flex;
    align-items: flex-start;
    gap: 11px;
    padding: 14px 17px;
    border-bottom: 1px solid var(--border-light);
    transition: background var(--transition-fast);
}

.notification-item:hover {
    background: var(--surface-hover);
}

.notification-item.unread {
    background: var(--primary-soft);
}

.notification-item-icon {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    flex: 0 0 34px;
    border-radius: 10px;
    font-size: 12px;
}

.notification-item-icon.course {
    color: var(--primary);
    background: var(--primary-soft);
}

.notification-item-icon.assignment {
    color: var(--yellow-dark);
    background: var(--yellow-soft);
}

.notification-item-icon.achievement {
    color: var(--purple);
    background: var(--purple-soft);
}

.notification-content {
    min-width: 0;
    flex: 1;
}

.notification-content strong {
    display: block;
    color: var(--text);
    font-size: 0.7rem;
}

.notification-content p {
    margin-top: 2px;
    color: var(--text-secondary);
    font-size: 0.62rem;
    line-height: 1.45;
}

.notification-content small {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.57rem;
}

.notification-read {
    display: grid;
    width: 27px;
    height: 27px;
    place-items: center;
    flex: 0 0 27px;
    border-radius: 8px;
    color: var(--text-muted);
    transition:
        color var(--transition-fast),
        background var(--transition-fast);
}

.notification-read:hover {
    color: var(--green);
    background: var(--green-soft);
}

.notification-footer {
    padding: 12px 17px;
    border-top: 1px solid var(--border);
}

.notification-footer button {
    color: var(--primary);
    font-size: 0.66rem;
    font-weight: 700;
}


/* =========================================================
   10. PROFILE MENU
========================================================= */

.profile-menu {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    z-index: 1000;
    width: 235px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 17px;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transform-origin: top right;
    transition:
        opacity var(--transition),
        visibility var(--transition),
        transform var(--transition);
}

.profile-menu.active,
.profile-menu.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.profile-menu-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-bottom: 1px solid var(--border);
}

.profile-menu-header strong,
.profile-menu-header span {
    display: block;
}

.profile-menu-header strong {
    color: var(--text);
    font-size: 0.7rem;
}

.profile-menu-header span {
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 0.57rem;
}

.profile-menu-links {
    padding: 7px 0;
}

.profile-menu-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 10px;
    border-radius: 9px;
    color: var(--text-secondary);
    font-size: 0.68rem;
    font-weight: 600;
    transition:
        color var(--transition-fast),
        background var(--transition-fast);
}

.profile-menu-links a:hover {
    color: var(--text);
    background: var(--surface-hover);
}

.profile-menu-links i {
    width: 17px;
    text-align: center;
}

.profile-logout {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px;
    border-top: 1px solid var(--border);
    color: var(--red);
    font-size: 0.68rem;
    font-weight: 700;
    text-align: left;
}


/* =========================================================
   11. CONTENT WRAPPER
========================================================= */

.content-wrapper {
    width: min(100%, 1500px);
    margin: 0 auto;
    padding: 30px 34px 0;
}


/* =========================================================
   12. LEARNING HERO
========================================================= */

.learning-hero {
    position: relative;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 30px;
    min-height: 285px;
    padding: 34px 38px;
    overflow: hidden;
    border: 1px solid rgba(37, 99, 235, 0.12);
    border-radius: var(--radius-xl);
    background:
        radial-gradient(
            circle at 90% 10%,
            rgba(6, 182, 212, 0.18),
            transparent 35%
        ),
        radial-gradient(
            circle at 10% 100%,
            rgba(37, 99, 235, 0.13),
            transparent 35%
        ),
        var(--surface);
    box-shadow: var(--shadow-sm);
}

.hero-background-shape {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(2px);
}

.shape-one {
    top: -80px;
    right: 34%;
    width: 170px;
    height: 170px;
    background: rgba(37, 99, 235, 0.05);
}

.shape-two {
    right: -60px;
    bottom: -70px;
    width: 200px;
    height: 200px;
    background: rgba(6, 182, 212, 0.08);
}

.hero-content {
    position: relative;
    z-index: 2;
    align-self: center;
    max-width: 600px;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 6px 10px;
    border-radius: var(--radius-full);
    color: var(--primary);
    background: var(--primary-soft);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.hero-eyebrow i {
    color: var(--yellow);
}

.hero-content h2 {
    max-width: 600px;
    margin-top: 12px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 3vw, 2.65rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.055em;
}

.hero-content h2 span {
    display: block;
    color: var(--primary);
}

.hero-content p {
    max-width: 500px;
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 0.78rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.primary-button,
.secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 42px;
    padding: 0 17px;
    border-radius: 11px;
    font-size: 0.68rem;
    font-weight: 700;
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast),
        background var(--transition-fast);
}

.primary-button {
    color: var(--white);
    background: linear-gradient(
        135deg,
        var(--primary),
        var(--primary-dark)
    );
    box-shadow: 0 9px 20px var(--primary-glow);
}

.primary-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 13px 28px var(--primary-glow);
}

.secondary-button {
    border: 1px solid var(--border);
    color: var(--text);
    background: var(--surface);
}

.secondary-button:hover {
    transform: translateY(-2px);
    border-color: var(--primary-light);
    color: var(--primary);
}


/* Hero Course Preview */

.hero-course-preview {
    position: relative;
    z-index: 2;
    align-self: center;
    width: min(100%, 390px);
    margin-left: auto;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface);
    box-shadow: var(--shadow-md);
    transform: rotate(1deg);
    transition: transform var(--transition);
}

.hero-course-preview:hover {
    transform: rotate(0deg) translateY(-3px);
}

.hero-course-image {
    position: relative;
    height: 125px;
    overflow: hidden;
    background:
        linear-gradient(
            135deg,
            #172554,
            #1e40af 48%,
            #0891b2
        );
}

.course-image-grid {
    position: absolute;
    inset: 0;
    opacity: 0.2;
    background-image:
        linear-gradient(
            rgba(255,255,255,0.15) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(255,255,255,0.15) 1px,
            transparent 1px
        );
    background-size: 28px 28px;
    transform: perspective(300px) rotateX(45deg) scale(1.4);
    transform-origin: center bottom;
}

.course-play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border: 4px solid rgba(255,255,255,0.25);
    border-radius: 50%;
    color: var(--white);
    background: rgba(255,255,255,0.16);
    transform: translate(-50%, -50%);
    backdrop-filter: blur(10px);
}

.course-play-button i {
    margin-left: 2px;
    font-size: 12px;
}

.course-duration {
    position: absolute;
    right: 10px;
    bottom: 10px;
    padding: 3px 7px;
    border-radius: 6px;
    color: var(--white);
    background: rgba(0,0,0,0.42);
    font-size: 0.56rem;
    font-weight: 700;
}

.hero-course-info {
    padding: 15px 16px 17px;
}

.course-category {
    color: var(--cyan-dark);
    font-size: 0.56rem;
    font-weight: 800;
    letter-spacing: 0.1em;
}

.hero-course-info h3 {
    margin-top: 4px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.83rem;
    font-weight: 800;
}

.hero-course-progress {
    margin-top: 12px;
}

.progress-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 5px;
    color: var(--text-muted);
    font-size: 0.56rem;
}

.progress-bar {
    height: 5px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--border-light);
}

.progress-fill {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(
        90deg,
        var(--primary),
        var(--cyan)
    );
}


/* =========================================================
   13. LEARNING STATS
========================================================= */

.learning-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-top: 18px;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 13px;
    min-height: 104px;
    padding: 17px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
    transition:
        transform var(--transition),
        box-shadow var(--transition),
        border-color var(--transition);
}

.stat-card:hover {
    border-color: rgba(37, 99, 235, 0.18);
    box-shadow: var(--shadow-sm);
    transform: translateY(-3px);
}

.stat-icon {
    display: grid;
    width: 45px;
    height: 45px;
    place-items: center;
    flex: 0 0 45px;
    border-radius: 13px;
    font-size: 16px;
}

.stat-icon.blue {
    color: var(--primary);
    background: var(--primary-soft);
}

.stat-icon.cyan {
    color: var(--cyan);
    background: var(--cyan-soft);
}

.stat-icon.yellow {
    color: var(--yellow-dark);
    background: var(--yellow-soft);
}

.stat-icon.purple {
    color: var(--purple);
    background: var(--purple-soft);
}

.stat-content {
    min-width: 0;
}

.stat-content > span {
    display: block;
    color: var(--text-secondary);
    font-size: 0.63rem;
    font-weight: 600;
}

.stat-content strong {
    display: inline-block;
    margin-top: 1px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1.25;
}

.stat-content small {
    display: block;
    color: var(--text-muted);
    font-size: 0.55rem;
}

.stat-content small.positive {
    color: var(--green);
}

.stat-content small.streak {
    color: var(--yellow-dark);
}


/* =========================================================
   14. DASHBOARD GRID
========================================================= */

.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.85fr);
    gap: 18px;
    margin-top: 18px;
}

.dashboard-card {
    min-width: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow-xs);
    transition:
        background var(--transition),
        border-color var(--transition),
        box-shadow var(--transition);
}

.dashboard-card:hover {
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 15px;
    padding: 21px 21px 15px;
}

.card-eyebrow {
    display: block;
    margin-bottom: 3px;
    color: var(--text-muted);
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.card-header h2 {
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: -0.025em;
}

.view-all {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 3px;
    color: var(--primary);
    font-size: 0.62rem;
    font-weight: 700;
    white-space: nowrap;
}

.view-all i {
    font-size: 0.55rem;
    transition: transform var(--transition-fast);
}

.view-all:hover i {
    transform: translateX(3px);
}

.card-menu {
    display: grid;
    width: 31px;
    height: 31px;
    place-items: center;
    border-radius: 8px;
    color: var(--text-muted);
    transition:
        color var(--transition-fast),
        background var(--transition-fast);
}

.card-menu:hover {
    color: var(--text);
    background: var(--surface-hover);
}


/* =========================================================
   15. COURSE TABS
========================================================= */

.course-tabs {
    display: flex;
    gap: 4px;
    padding: 0 21px 15px;
    border-bottom: 1px solid var(--border-light);
}

.course-tab {
    padding: 7px 10px;
    border-radius: 8px;
    color: var(--text-muted);
    font-size: 0.6rem;
    font-weight: 700;
    transition:
        color var(--transition-fast),
        background var(--transition-fast);
}

.course-tab:hover {
    color: var(--text);
    background: var(--surface-hover);
}

.course-tab.active {
    color: var(--primary);
    background: var(--primary-soft);
}


/* =========================================================
   16. COURSE LIST
========================================================= */

.course-list {
    display: flex;
    flex-direction: column;
}

.course-card {
    display: grid;
    grid-template-columns: 165px minmax(0, 1fr);
    gap: 17px;
    padding: 16px 21px;
    border-bottom: 1px solid var(--border-light);
    transition:
        background var(--transition-fast),
        transform var(--transition-fast);
}

.course-card:last-child {
    border-bottom: 0;
}

.course-card:hover {
    background: var(--surface-hover);
}

.course-card.hidden {
    display: none;
}


/* Course Thumbnail */

.course-thumbnail {
    position: relative;
    height: 118px;
    overflow: hidden;
    border-radius: 13px;
}

.course-thumbnail.design {
    background:
        linear-gradient(
            135deg,
            #172554,
            #2563eb,
            #06b6d4
        );
}

.course-thumbnail.javascript {
    background:
        linear-gradient(
            135deg,
            #422006,
            #f59e0b,
            #facc15
        );
}

.course-thumbnail.marketing {
    background:
        linear-gradient(
            135deg,
            #4c1d95,
            #8b5cf6,
            #ec4899
        );
}

.thumbnail-pattern {
    position: absolute;
    inset: 0;
}

.thumbnail-pattern span {
    position: absolute;
    width: 70px;
    height: 70px;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 50%;
}

.thumbnail-pattern span:nth-child(1) {
    top: -25px;
    left: -10px;
}

.thumbnail-pattern span:nth-child(2) {
    top: 30px;
    right: -25px;
}

.thumbnail-pattern span:nth-child(3) {
    bottom: -45px;
    left: 45px;
}

.code-decoration {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.14);
    font-family: monospace;
    font-size: 4rem;
    font-weight: 900;
}

.marketing-shapes {
    position: absolute;
    inset: 0;
}

.marketing-shapes span {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.11);
}

.marketing-shapes span:nth-child(1) {
    top: -30px;
    left: 20px;
    width: 100px;
    height: 100px;
}

.marketing-shapes span:nth-child(2) {
    right: -20px;
    bottom: -20px;
    width: 95px;
    height: 95px;
}

.marketing-shapes span:nth-child(3) {
    top: 20px;
    right: 30px;
    width: 30px;
    height: 30px;
}

.thumbnail-content {
    position: absolute;
    top: 50%;
    left: 50%;
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 15px;
    color: var(--white);
    background: rgba(255,255,255,0.12);
    font-size: 21px;
    transform: translate(-50%, -50%);
    backdrop-filter: blur(7px);
}

.course-level {
    position: absolute;
    right: 8px;
    bottom: 8px;
    padding: 4px 7px;
    border-radius: 6px;
    color: var(--white);
    background: rgba(15,23,42,0.45);
    font-size: 0.48rem;
    font-weight: 700;
    backdrop-filter: blur(5px);
}

.course-level.completed {
    color: #dcfce7;
    background: rgba(6,78,59,0.7);
}


/* Course Details */

.course-details {
    min-width: 0;
    padding: 1px 0;
}

.course-meta {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--text-muted);
    font-size: 0.54rem;
}

.course-meta span:first-child {
    color: var(--primary);
    font-weight: 800;
}

.course-details h3 {
    margin-top: 5px;
    overflow: hidden;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.83rem;
    font-weight: 800;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.instructor-mini {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    color: var(--text-secondary);
    font-size: 0.57rem;
}

.instructor-avatar {
    display: grid;
    width: 22px;
    height: 22px;
    place-items: center;
    border-radius: 7px;
    color: var(--white);
    background: var(--primary);
    font-size: 0.43rem;
    font-weight: 800;
}

.instructor-avatar.green {
    background: var(--green);
}

.instructor-avatar.orange {
    background: var(--yellow-dark);
}

.course-progress {
    margin-top: 9px;
}

.progress-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
    color: var(--text-muted);
    font-size: 0.52rem;
}

.progress-label strong {
    color: var(--text-secondary);
}

.cyan-fill {
    background: linear-gradient(
        90deg,
        var(--cyan),
        #22d3ee
    );
}

.completed-fill {
    background: var(--green);
}

.course-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    color: var(--primary);
    font-size: 0.58rem;
    font-weight: 800;
}

.course-action i {
    transition: transform var(--transition-fast);
}

.course-action:hover i {
    transform: translateX(3px);
}

.completed-action {
    color: var(--green);
}


/* =========================================================
   17. PROGRESS CARD
========================================================= */

.progress-card {
    overflow: hidden;
}

.progress-overview {
    display: grid;
    grid-template-columns: 125px 1fr;
    align-items: center;
    gap: 18px;
    padding: 5px 21px 19px;
}

.progress-ring {
    position: relative;
    width: 118px;
    height: 118px;
}

.progress-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.ring-background,
.ring-progress {
    fill: none;
    stroke-width: 9;
}

.ring-background {
    stroke: var(--border-light);
}

.ring-progress {
    stroke: var(--primary);
    stroke-linecap: round;
    stroke-dasharray: 314;
    stroke-dashoffset: 82;
    filter: drop-shadow(0 4px 7px var(--primary-glow));
    transition: stroke-dashoffset 1s ease;
}

.ring-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.ring-content strong {
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    line-height: 1;
}

.ring-content span {
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.53rem;
}

.progress-summary {
    display: flex;
    flex-direction: column;
    gap: 13px;
}

.summary-item {
    display: flex;
    align-items: center;
    gap: 9px;
}

.summary-dot {
    width: 8px;
    height: 8px;
    flex: 0 0 8px;
    border-radius: 50%;
}

.summary-dot.blue {
    background: var(--primary);
}

.summary-dot.cyan {
    background: var(--cyan);
}

.summary-dot.yellow {
    background: var(--yellow);
}

.summary-item strong,
.summary-item span {
    display: block;
}

.summary-item strong {
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.72rem;
    line-height: 1.1;
}

.summary-item div span {
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 0.54rem;
}


/* Weekly Learning */

.weekly-learning {
    padding: 17px 21px 20px;
    border-top: 1px solid var(--border-light);
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chart-header strong,
.chart-header span {
    display: block;
}

.chart-header strong {
    color: var(--text);
    font-size: 0.62rem;
}

.chart-header span {
    margin-top: 1px;
    color: var(--text-muted);
    font-size: 0.52rem;
}

.chart-total {
    text-align: right;
}

.chart-total strong {
    display: inline;
    font-family: var(--font-heading);
    font-size: 0.8rem;
}

.chart-total .positive {
    display: inline;
    margin-left: 5px;
    color: var(--green);
    font-size: 0.53rem;
}

.learning-chart {
    display: flex;
    height: 135px;
    margin-top: 14px;
}

.chart-y-axis {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 0 8px 18px 0;
    color: var(--text-muted);
    font-size: 0.47rem;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    width: 100%;
    height: 100%;
    border-bottom: 1px solid var(--border);
    background-image: linear-gradient(
        to bottom,
        transparent 24%,
        var(--border-light) 25%,
        transparent 25%,
        transparent 49%,
        var(--border-light) 50%,
        transparent 50%,
        transparent 74%,
        var(--border-light) 75%,
        transparent 75%
    );
}

.chart-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    gap: 7px;
    width: 25px;
    height: 100%;
}

.chart-bar {
    width: 14px;
    min-height: 5px;
    border-radius: 5px 5px 2px 2px;
    background: #bfdbfe;
    transition:
        height 0.8s ease,
        background var(--transition-fast),
        transform var(--transition-fast);
}

body.dark-mode .chart-bar {
    background: #1e3a5f;
}

.chart-bar:hover,
.chart-bar.active {
    background: linear-gradient(
        to top,
        var(--primary),
        var(--cyan)
    );
    transform: scaleX(1.12);
}

.chart-column small {
    color: var(--text-muted);
    font-size: 0.46rem;
}


/* =========================================================
   18. SCHEDULE
========================================================= */

.schedule-card {
    grid-column: 1 / -1;
}

.schedule-list {
    padding: 0 21px 12px;
}

.schedule-item {
    position: relative;
    display: grid;
    grid-template-columns: 55px 2px minmax(0, 1fr) auto;
    align-items: center;
    gap: 15px;
    min-height: 100px;
    padding: 13px 12px;
    border-bottom: 1px solid var(--border-light);
    border-radius: 12px;
    transition:
        background var(--transition-fast),
        transform var(--transition-fast);
}

.schedule-item:last-child {
    border-bottom: 0;
}

.schedule-item:hover,
.schedule-item.active {
    background: var(--surface-hover);
}

.schedule-item.active {
    box-shadow: inset 3px 0 0 var(--primary);
}

.schedule-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-right: 2px;
}

.schedule-date span {
    color: var(--text-muted);
    font-size: 0.48rem;
    font-weight: 800;
}

.schedule-date strong {
    margin-top: 2px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 1.15rem;
    line-height: 1;
}

.schedule-line {
    width: 2px;
    height: 53px;
    border-radius: var(--radius-full);
    background: var(--border);
}

.schedule-content {
    min-width: 0;
}

.schedule-type {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 0.51rem;
    font-weight: 800;
}

.schedule-type.lesson {
    color: var(--primary);
}

.schedule-type.assignment {
    color: var(--yellow-dark);
}

.schedule-type.quiz {
    color: var(--purple);
}

.schedule-content h3 {
    margin-top: 3px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.71rem;
    font-weight: 800;
}

.schedule-content p {
    margin-top: 1px;
    color: var(--text-muted);
    font-size: 0.54rem;
}

.schedule-time {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-top: 5px;
    color: var(--text-secondary);
    font-size: 0.52rem;
}

.schedule-action {
    min-width: 53px;
    min-height: 30px;
    padding: 0 11px;
    border-radius: 8px;
    color: var(--white);
    background: var(--primary);
    font-size: 0.55rem;
    font-weight: 800;
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
}

.schedule-action:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 14px var(--primary-glow);
}

.schedule-action.secondary {
    color: var(--primary);
    background: var(--primary-soft);
}


/* =========================================================
   19. ACHIEVEMENTS
========================================================= */

.achievements-card {
    min-width: 0;
}

.achievement-list {
    padding: 0 21px;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 58px;
    border-bottom: 1px solid var(--border-light);
}

.achievement-icon {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    flex: 0 0 34px;
    border-radius: 10px;
    font-size: 13px;
}

.achievement-icon.gold {
    color: var(--yellow-dark);
    background: var(--yellow-soft);
}

.achievement-icon.blue {
    color: var(--primary);
    background: var(--primary-soft);
}

.achievement-icon.purple {
    color: var(--purple);
    background: var(--purple-soft);
}

.achievement-icon.locked-icon {
    color: var(--text-muted);
    background: var(--surface-hover);
}

.achievement-info {
    min-width: 0;
    flex: 1;
}

.achievement-info strong,
.achievement-info span {
    display: block;
}

.achievement-info strong {
    color: var(--text);
    font-size: 0.62rem;
}

.achievement-info span {
    margin-top: 1px;
    color: var(--text-muted);
    font-size: 0.52rem;
}

.achievement-check {
    display: grid;
    width: 22px;
    height: 22px;
    place-items: center;
    border-radius: 50%;
    color: var(--green);
    background: var(--green-soft);
    font-size: 0.5rem;
}

.achievement-progress {
    color: var(--text-muted);
    font-size: 0.53rem;
    font-weight: 700;
}

.achievement-progress-card {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 15px 21px 20px;
    padding: 12px;
    border-radius: 12px;
    background: var(--surface-hover);
}

.achievement-progress-icon {
    display: grid;
    width: 31px;
    height: 31px;
    place-items: center;
    border-radius: 9px;
    color: var(--yellow-dark);
    background: var(--yellow-soft);
    font-size: 12px;
}

.achievement-progress-card > div:nth-child(2) {
    flex: 1;
}

.achievement-progress-card strong,
.achievement-progress-card span {
    display: block;
}

.achievement-progress-card strong {
    color: var(--text);
    font-size: 0.58rem;
}

.achievement-progress-card > div:nth-child(2) span {
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 0.5rem;
}

.mini-progress {
    width: 55px;
}

.mini-progress > span {
    margin-bottom: 3px;
    color: var(--primary);
    font-size: 0.5rem;
    font-weight: 800;
    text-align: right;
}

.mini-progress-bar {
    height: 4px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--border);
}

.mini-progress-bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: var(--primary);
}


/* =========================================================
   20. CATEGORIES
========================================================= */

.categories-card {
    grid-column: 1 / -1;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    padding: 0 21px 21px;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px 7px;
    border: 1px solid var(--border-light);
    border-radius: 13px;
    background: var(--surface);
    transition:
        transform var(--transition-fast),
        border-color var(--transition-fast),
        background var(--transition-fast);
}

.category-item:hover {
    border-color: rgba(37, 99, 235, 0.18);
    background: var(--surface-hover);
    transform: translateY(-3px);
}

.category-icon {
    display: grid;
    width: 42px;
    height: 42px;
    place-items: center;
    border-radius: 12px;
    font-size: 15px;
}

.category-icon.development {
    color: var(--primary);
    background: var(--primary-soft);
}

.category-icon.design {
    color: var(--purple);
    background: var(--purple-soft);
}

.category-icon.business {
    color: var(--green);
    background: var(--green-soft);
}

.category-icon.marketing {
    color: var(--yellow-dark);
    background: var(--yellow-soft);
}

.category-icon.photography {
    color: var(--cyan);
    background: var(--cyan-soft);
}

.category-icon.data {
    color: var(--red);
    background: var(--red-soft);
}

.category-item strong {
    margin-top: 8px;
    color: var(--text);
    font-size: 0.6rem;
}

.category-item small {
    margin-top: 1px;
    color: var(--text-muted);
    font-size: 0.49rem;
}


/* =========================================================
   21. INSTRUCTORS
========================================================= */

.instructors-card {
    grid-column: 1 / -1;
}

.instructor-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 0 21px 21px;
}

.instructor-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 13px;
    border: 1px solid var(--border-light);
    border-radius: 13px;
    transition:
        border-color var(--transition-fast),
        background var(--transition-fast),
        transform var(--transition-fast);
}

.instructor-item:hover {
    border-color: rgba(37, 99, 235, 0.16);
    background: var(--surface-hover);
    transform: translateY(-2px);
}

.instructor-photo {
    display: grid;
    width: 40px;
    height: 40px;
    place-items: center;
    flex: 0 0 40px;
    border-radius: 12px;
    color: var(--white);
    font-size: 0.58rem;
    font-weight: 800;
}

.blue-avatar {
    background: linear-gradient(
        135deg,
        #2563eb,
        #06b6d4
    );
}

.green-avatar {
    background: linear-gradient(
        135deg,
        #059669,
        #10b981
    );
}

.orange-avatar {
    background: linear-gradient(
        135deg,
        #d97706,
        #f59e0b
    );
}

.instructor-details {
    min-width: 0;
    flex: 1;
}

.instructor-details > strong,
.instructor-details > span {
    display: block;
}

.instructor-details > strong {
    overflow: hidden;
    color: var(--text);
    font-size: 0.63rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.instructor-details > span {
    margin-top: 1px;
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.5rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.instructor-rating {
    display: flex;
    align-items: center;
    gap: 3px;
    margin-top: 4px;
}

.instructor-rating i {
    color: var(--yellow);
    font-size: 0.49rem;
}

.instructor-rating strong {
    color: var(--text-secondary);
    font-size: 0.5rem;
}

.instructor-rating span {
    color: var(--text-muted);
    font-size: 0.47rem;
}

.follow-button {
    min-height: 27px;
    padding: 0 9px;
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--primary);
    font-size: 0.52rem;
    font-weight: 800;
    transition:
        background var(--transition-fast),
        border-color var(--transition-fast);
}

.follow-button:hover,
.follow-button.following {
    border-color: var(--primary);
    color: var(--white);
    background: var(--primary);
}


/* =========================================================
   22. ASSIGNMENTS
========================================================= */

.assignments-card {
    grid-column: 1 / -1;
}

.assignment-list {
    padding: 0 21px 12px;
}

.assignment-item {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr) auto 30px;
    align-items: center;
    gap: 10px;
    min-height: 68px;
    padding: 9px 5px;
    border-bottom: 1px solid var(--border-light);
}

.assignment-item:last-child {
    border-bottom: 0;
}

.assignment-icon {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 10px;
    font-size: 12px;
}

.assignment-icon.urgent {
    color: var(--red);
    background: var(--red-soft);
}

.assignment-icon.normal {
    color: var(--primary);
    background: var(--primary-soft);
}

.assignment-icon.quiz-icon {
    color: var(--purple);
    background: var(--purple-soft);
}

.assignment-content {
    min-width: 0;
}

.assignment-content strong,
.assignment-content span {
    display: block;
}

.assignment-content strong {
    overflow: hidden;
    color: var(--text);
    font-size: 0.61rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.assignment-content span {
    margin-top: 2px;
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.5rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.assignment-due {
    min-width: 75px;
    text-align: right;
}

.assignment-due small,
.assignment-due strong {
    display: block;
}

.assignment-due small {
    color: var(--text-muted);
    font-size: 0.48rem;
}

.assignment-due strong {
    margin-top: 1px;
    color: var(--text-secondary);
    font-size: 0.56rem;
}

.assignment-due.urgent-text strong,
.assignment-due.urgent-text small {
    color: var(--red);
}

.assignment-action {
    display: grid;
    width: 29px;
    height: 29px;
    place-items: center;
    border-radius: 8px;
    color: var(--text-muted);
    background: var(--surface-hover);
    transition:
        color var(--transition-fast),
        background var(--transition-fast),
        transform var(--transition-fast);
}

.assignment-action:hover {
    color: var(--primary);
    background: var(--primary-soft);
    transform: translateX(2px);
}


/* =========================================================
   23. STUDY GOAL
========================================================= */

.study-goal-card {
    padding-bottom: 20px;
}

.study-goal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 21px 21px 12px;
}

.study-goal-header h2 {
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 800;
}

.goal-icon {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 10px;
    color: var(--primary);
    background: var(--primary-soft);
}

.goal-visual {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 0 21px;
}

.goal-ring {
    position: relative;
    width: 90px;
    height: 90px;
    flex: 0 0 90px;
}

.goal-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.goal-ring-bg,
.goal-ring-progress {
    fill: none;
    stroke-width: 9;
}

.goal-ring-bg {
    stroke: var(--border-light);
}

.goal-ring-progress {
    stroke: var(--cyan);
    stroke-linecap: round;
    stroke-dasharray: 302;
    stroke-dashoffset: 84;
}

.goal-ring-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.goal-ring-content strong {
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 1rem;
    line-height: 1;
}

.goal-ring-content span {
    margin-top: 3px;
    color: var(--text-muted);
    font-size: 0.46rem;
}

.goal-details {
    min-width: 0;
}

.goal-details > strong,
.goal-details > span,
.goal-details > small {
    display: block;
}

.goal-details > strong {
    color: var(--text);
    font-size: 0.67rem;
}

.goal-details > span {
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 0.51rem;
    line-height: 1.45;
}

.goal-progress {
    height: 5px;
    margin-top: 8px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: var(--border-light);
}

.goal-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(
        90deg,
        var(--cyan),
        var(--primary)
    );
}

.goal-details > small {
    margin-top: 4px;
    color: var(--cyan-dark);
    font-size: 0.48rem;
    font-weight: 700;
}

.goal-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    width: calc(100% - 42px);
    min-height: 36px;
    margin: 17px 21px 0;
    border-radius: 9px;
    color: var(--primary);
    background: var(--primary-soft);
    font-size: 0.57rem;
    font-weight: 800;
    transition:
        background var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-fast);
}

.goal-button:hover {
    color: var(--white);
    background: var(--primary);
    transform: translateY(-1px);
}


/* =========================================================
   24. FOOTER
========================================================= */

.app-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 28px 3px 25px;
    color: var(--text-muted);
    font-size: 0.54rem;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 7px;
}

.footer-brand {
    color: var(--primary);
    font-family: var(--font-heading);
    font-weight: 800;
}

.footer-links {
    display: flex;
    gap: 15px;
}

.footer-links a:hover {
    color: var(--primary);
}


/* =========================================================
   25. SEARCH OVERLAY
========================================================= */

.search-overlay {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: flex;
    justify-content: center;
    padding: 12vh 20px 30px;
    background: rgba(15, 23, 42, 0.55);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--transition),
        visibility var(--transition);
    backdrop-filter: blur(10px);
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-dialog {
    width: min(100%, 620px);
    max-height: 70vh;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    transform: translateY(-15px) scale(0.98);
    transition: transform var(--transition);
}

.search-overlay.active .search-dialog {
    transform: translateY(0) scale(1);
}

.search-dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 19px;
    border-bottom: 1px solid var(--border);
}

.search-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-title-icon {
    display: grid;
    width: 35px;
    height: 35px;
    place-items: center;
    border-radius: 10px;
    color: var(--primary);
    background: var(--primary-soft);
}

.search-title strong,
.search-title span {
    display: block;
}

.search-title strong {
    color: var(--text);
    font-size: 0.73rem;
}

.search-title span {
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 0.55rem;
}

.search-close,
.player-close {
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    border-radius: 9px;
    color: var(--text-muted);
}

.search-close:hover,
.player-close:hover {
    color: var(--text);
    background: var(--surface-hover);
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 14px 18px;
    padding: 0 12px;
    min-height: 46px;
    border: 1px solid var(--border);
    border-radius: 11px;
    background: var(--surface-hover);
}

.search-input-wrapper > i {
    color: var(--text-muted);
    font-size: 12px;
}

.search-input {
    min-width: 0;
    flex: 1;
    border: 0;
    outline: 0;
    color: var(--text);
    background: transparent;
    font-size: 0.7rem;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input-wrapper kbd {
    padding: 3px 6px;
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--text-muted);
    background: var(--surface);
    font-size: 0.47rem;
}

.search-results {
    max-height: 430px;
    overflow-y: auto;
    padding: 0 8px 10px;
}

.search-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    padding: 30px;
    text-align: center;
}

.search-empty-icon {
    display: grid;
    width: 45px;
    height: 45px;
    place-items: center;
    border-radius: 13px;
    color: var(--primary);
    background: var(--primary-soft);
}

.search-empty h3 {
    margin-top: 12px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.78rem;
}

.search-empty p {
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.58rem;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 11px;
    border-radius: 10px;
    text-align: left;
    transition: background var(--transition-fast);
}

.search-result-item:hover {
    background: var(--surface-hover);
}

.search-result-icon {
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    flex: 0 0 32px;
    border-radius: 9px;
    color: var(--primary);
    background: var(--primary-soft);
    font-size: 11px;
}

.search-result-content {
    min-width: 0;
}

.search-result-content strong,
.search-result-content small {
    display: block;
}

.search-result-content strong {
    overflow: hidden;
    color: var(--text);
    font-size: 0.63rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.search-result-content small {
    margin-top: 2px;
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.51rem;
    text-overflow: ellipsis;
    white-space: nowrap;
}


/* =========================================================
   26. COURSE PLAYER MODAL
========================================================= */

.course-player-overlay {
    position: fixed;
    inset: 0;
    z-index: 4000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(2, 6, 23, 0.72);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--transition),
        visibility var(--transition);
    backdrop-filter: blur(8px);
}

.course-player-overlay.active {
    opacity: 1;
    visibility: visible;
}

.course-player-modal {
    width: min(100%, 850px);
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 20px;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    transform: translateY(15px) scale(0.98);
    transition: transform var(--transition);
}

.course-player-overlay.active .course-player-modal {
    transform: translateY(0) scale(1);
}

.player-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 17px 19px;
    border-bottom: 1px solid var(--border);
}

.player-header span {
    display: block;
    color: var(--text-muted);
    font-size: 0.52rem;
}

.player-header h3 {
    margin-top: 2px;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.83rem;
    font-weight: 800;
}

.video-player {
    position: relative;
    overflow: hidden;
    background: #020617;
}

.video-background {
    position: relative;
    display: grid;
    height: min(48vw, 430px);
    min-height: 270px;
    place-items: center;
    background:
        radial-gradient(
            circle at 50% 50%,
            rgba(37, 99, 235, 0.25),
            transparent 35%
        ),
        linear-gradient(
            135deg,
            #0f172a,
            #172554,
            #0f172a
        );
}

.video-grid {
    position: absolute;
    inset: 0;
    opacity: 0.12;
    background-image:
        linear-gradient(
            rgba(255,255,255,0.15) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(255,255,255,0.15) 1px,
            transparent 1px
        );
    background-size: 35px 35px;
}

.video-play {
    position: relative;
    z-index: 2;
    display: grid;
    width: 66px;
    height: 66px;
    place-items: center;
    border: 4px solid rgba(255,255,255,0.25);
    border-radius: 50%;
    color: var(--white);
    background: rgba(37, 99, 235, 0.75);
    box-shadow: 0 12px 35px rgba(37,99,235,0.4);
    transition:
        transform var(--transition-fast),
        background var(--transition-fast);
}

.video-play:hover {
    background: var(--primary);
    transform: scale(1.07);
}

.video-play i {
    margin-left: 3px;
}

.video-controls {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 48px;
    padding: 8px 13px;
    color: var(--white);
    background: linear-gradient(
        to top,
        rgba(0,0,0,0.72),
        transparent
    );
}

.video-controls button {
    display: grid;
    width: 27px;
    height: 27px;
    place-items: center;
    border-radius: 7px;
    font-size: 10px;
}

.video-controls button:hover {
    background: rgba(255,255,255,0.1);
}

.video-progress {
    flex: 1;
    height: 4px;
    overflow: hidden;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.2);
}

.video-progress span {
    display: block;
    width: 48%;
    height: 100%;
    background: var(--primary-light);
}

.video-time {
    font-size: 0.48rem;
    white-space: nowrap;
}

.player-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 16px 19px;
}

.lesson-info span,
.lesson-info strong {
    display: block;
}

.lesson-info span {
    color: var(--text-muted);
    font-size: 0.52rem;
}

.lesson-info strong {
    margin-top: 2px;
    color: var(--text);
    font-size: 0.65rem;
}

.next-lesson-button {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 34px;
    padding: 0 12px;
    border-radius: 8px;
    color: var(--white);
    background: var(--primary);
    font-size: 0.56rem;
    font-weight: 800;
}


/* =========================================================
   27. TOASTS
========================================================= */

.toast-container {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 8000;
    display: flex;
    flex-direction: column;
    gap: 9px;
    width: min(350px, calc(100vw - 40px));
    pointer-events: none;
}

.workspace-toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 12px;
    border: 1px solid var(--border);
    border-radius: 13px;
    background: var(--surface);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(12px);
    transition:
        opacity 0.3s ease,
        transform 0.3s ease;
    pointer-events: auto;
}

.workspace-toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast-icon {
    display: grid;
    width: 31px;
    height: 31px;
    place-items: center;
    flex: 0 0 31px;
    border-radius: 9px;
    color: var(--green);
    background: var(--green-soft);
    font-size: 11px;
}

.toast-content {
    min-width: 0;
    flex: 1;
}

.toast-content strong,
.toast-content span {
    display: block;
}

.toast-content strong {
    color: var(--text);
    font-size: 0.62rem;
}

.toast-content span {
    margin-top: 1px;
    color: var(--text-muted);
    font-size: 0.53rem;
}

.toast-close {
    color: var(--text-muted);
    font-size: 15px;
}


/* =========================================================
   28. BUTTON RIPPLE
========================================================= */

button {
    position: relative;
    overflow: hidden;
}

.button-ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    transform: scale(0);
    animation: buttonRipple 0.6s ease-out;
    pointer-events: none;
}

@keyframes buttonRipple {
    to {
        opacity: 0;
        transform: scale(2.5);
    }
}


/* =========================================================
   29. SCROLL REVEAL
========================================================= */

.reveal-ready {
    opacity: 0;
    transform: translateY(14px);
    transition:
        opacity 0.55s ease,
        transform 0.55s ease;
}

.revealed {
    opacity: 1;
    transform: translateY(0);
}


/* =========================================================
   30. FOCUS STATES
========================================================= */

button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}


/* =========================================================
   31. RESPONSIVE — LARGE TABLET
========================================================= */

@media (max-width: 1200px) {

    :root {
        --sidebar-width: 230px;
    }

    .content-wrapper {
        padding-right: 24px;
        padding-left: 24px;
    }

    .top-header {
        padding-right: 24px;
        padding-left: 24px;
    }

    .learning-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .instructor-list {
        grid-template-columns: 1fr;
    }

}


/* =========================================================
   32. RESPONSIVE — TABLET
========================================================= */

@media (max-width: 980px) {

    .sidebar {
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
    }

    .sidebar.active,
    .sidebar.is-open {
        transform: translateX(0);
    }

    .sidebar-close {
        display: grid;
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: grid;
    }

    .learning-hero {
        grid-template-columns: 1fr;
    }

    .hero-course-preview {
        width: 100%;
        max-width: 480px;
        margin: 0;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .progress-card {
        grid-column: 1;
    }

    .courses-card {
        grid-column: 1;
    }

    .schedule-card,
    .categories-card,
    .instructors-card,
    .assignments-card {
        grid-column: 1;
    }

}


/* =========================================================
   33. RESPONSIVE — MOBILE
========================================================= */

@media (max-width: 700px) {

    :root {
        --header-height: 70px;
    }

    .top-header {
        min-height: var(--header-height);
        padding: 10px 15px;
    }

    .content-wrapper {
        padding: 18px 15px 0;
    }

    .page-heading h1 {
        font-size: 0.98rem;
    }

    .page-heading .greeting {
        font-size: 0.62rem;
    }

    .header-actions {
        gap: 2px;
    }

    .header-action {
        width: 35px;
        height: 35px;
    }

    .profile-info,
    .profile-button > i {
        display: none;
    }

    .profile-button {
        margin-left: 1px;
        padding: 3px;
    }

    .learning-hero {
        min-height: auto;
        padding: 25px 21px;
        border-radius: 20px;
    }

    .hero-content h2 {
        font-size: 1.72rem;
    }

    .hero-content p {
        font-size: 0.68rem;
    }

    .hero-actions {
        gap: 7px;
    }

    .primary-button,
    .secondary-button {
        min-height: 39px;
        padding: 0 12px;
        font-size: 0.6rem;
    }

    .learning-stats {
        grid-template-columns: 1fr 1fr;
        gap: 9px;
    }

    .stat-card {
        min-height: 92px;
        padding: 13px;
        gap: 9px;
    }

    .stat-icon {
        width: 37px;
        height: 37px;
        flex-basis: 37px;
        border-radius: 10px;
        font-size: 13px;
    }

    .stat-content strong {
        font-size: 1rem;
    }

    .stat-content > span {
        font-size: 0.54rem;
    }

    .stat-content small {
        font-size: 0.48rem;
    }

    .dashboard-grid {
        gap: 13px;
        margin-top: 13px;
    }

    .dashboard-card {
        border-radius: 16px;
    }

    .card-header {
        padding: 17px 16px 13px;
    }

    .card-header h2 {
        font-size: 0.83rem;
    }

    .course-tabs {
        padding-right: 16px;
        padding-left: 16px;
        overflow-x: auto;
    }

    .course-tabs::-webkit-scrollbar {
        display: none;
    }

    .course-tab {
        flex: 0 0 auto;
    }

    .course-card {
        grid-template-columns: 105px minmax(0, 1fr);
        gap: 11px;
        padding: 13px 16px;
    }

    .course-thumbnail {
        height: 100px;
    }

    .course-details h3 {
        font-size: 0.68rem;
    }

    .instructor-mini {
        font-size: 0.5rem;
    }

    .progress-overview {
        grid-template-columns: 105px 1fr;
        gap: 10px;
        padding-right: 16px;
        padding-left: 16px;
    }

    .progress-ring {
        width: 100px;
        height: 100px;
    }

    .weekly-learning {
        padding-right: 16px;
        padding-left: 16px;
    }

    .schedule-list,
    .achievement-list,
    .assignment-list {
        padding-right: 16px;
        padding-left: 16px;
    }

    .schedule-item {
        grid-template-columns: 42px 2px minmax(0, 1fr);
        gap: 10px;
        padding: 11px 5px;
    }

    .schedule-action {
        grid-column: 3;
        justify-self: start;
        margin-top: 2px;
    }

    .schedule-content h3 {
        font-size: 0.63rem;
    }

    .category-grid {
        grid-template-columns: repeat(3, 1fr);
        padding-right: 16px;
        padding-left: 16px;
    }

    .instructor-list {
        padding-right: 16px;
        padding-left: 16px;
    }

    .assignment-item {
        grid-template-columns: 34px minmax(0, 1fr) 29px;
    }

    .assignment-due {
        display: none;
    }

    .study-goal-header {
        padding-right: 16px;
        padding-left: 16px;
    }

    .goal-visual {
        padding-right: 16px;
        padding-left: 16px;
    }

    .goal-button {
        width: calc(100% - 32px);
        margin-right: 16px;
        margin-left: 16px;
    }

    .app-footer {
        flex-direction: column;
        align-items: flex-start;
        padding-top: 22px;
    }

    .notification-panel {
        position: fixed;
        top: 70px;
        right: 10px;
        left: 10px;
        width: auto;
    }

    .search-overlay {
        padding: 8vh 10px 20px;
    }

    .search-dialog {
        border-radius: 16px;
    }

    .course-player-overlay {
        padding: 10px;
    }

    .course-player-modal {
        border-radius: 15px;
    }

    .video-background {
        height: 52vw;
        min-height: 220px;
    }

    .player-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .next-lesson-button {
        width: 100%;
        justify-content: center;
    }

    .toast-container {
        right: 15px;
        bottom: 15px;
        width: calc(100vw - 30px);
    }

}


/* =========================================================
   34. RESPONSIVE — SMALL MOBILE
========================================================= */

@media (max-width: 460px) {

    .brand-text {
        display: none;
    }

    .page-heading {
        min-width: 0;
    }

    .page-heading h1 {
        overflow: hidden;
        max-width: 190px;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .learning-stats {
        grid-template-columns: 1fr;
    }

    .stat-card {
        min-height: 78px;
    }

    .learning-hero {
        padding: 22px 17px;
    }

    .hero-content h2 {
        font-size: 1.48rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .primary-button,
    .secondary-button {
        width: 100%;
    }

    .course-card {
        grid-template-columns: 1fr;
    }

    .course-thumbnail {
        width: 100%;
        height: 135px;
    }

    .course-details h3 {
        white-space: normal;
    }

    .progress-overview {
        grid-template-columns: 1fr;
        justify-items: center;
    }

    .progress-summary {
        width: 100%;
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .schedule-item {
        grid-template-columns: 38px 2px minmax(0, 1fr);
    }

    .schedule-date strong {
        font-size: 1rem;
    }

    .schedule-time {
        font-size: 0.47rem;
    }

    .achievement-progress-card {
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .achievement-progress-card .mini-progress {
        width: 100%;
        margin-left: 41px;
    }

    .assignment-content strong {
        font-size: 0.56rem;
    }

    .search-input {
        font-size: 0.65rem;
    }

}


/* =========================================================
   35. DARK MODE REFINEMENTS
========================================================= */

body.dark-mode .learning-hero {
    border-color: rgba(96, 165, 250, 0.12);
}

body.dark-mode .hero-course-preview {
    border-color: rgba(148, 163, 184, 0.13);
}

body.dark-mode .course-thumbnail.design {
    background:
        linear-gradient(
            135deg,
            #172554,
            #1d4ed8,
            #0e7490
        );
}

body.dark-mode .course-thumbnail.javascript {
    background:
        linear-gradient(
            135deg,
            #451a03,
            #b45309,
            #ca8a04
        );
}

body.dark-mode .course-thumbnail.marketing {
    background:
        linear-gradient(
            135deg,
            #3b0764,
            #6d28d9,
            #be185d
        );
}

body.dark-mode .category-item,
body.dark-mode .instructor-item {
    background: var(--surface);
}

body.dark-mode .course-card:hover,
body.dark-mode .schedule-item:hover,
body.dark-mode .schedule-item.active {
    background: rgba(148, 163, 184, 0.045);
}

body.dark-mode .chart-bars {
    border-bottom-color: rgba(148, 163, 184, 0.12);
}


/* =========================================================
   36. REDUCED MOTION
========================================================= */

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

}