/* ==================================================
   Public Website v2.0.0 — Aurora Premium
   ترم بهمن ۱۴۰۴
   ================================================== */

:root {
    --bg-deep: #050514;
    --bg-1: #0f0c29;
    --bg-2: #1a1342;
    --bg-3: #24243e;
    --glass-bg: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-strong: rgba(255, 255, 255, 0.1);
    --text-1: #f8fafc;
    --text-2: #cbd5e1;
    --text-3: #94a3b8;
    --accent: #a78bfa;
    --accent-2: #f472b6;
    --accent-3: #38bdf8;
    --success: #34d399;
    --warning: #fbbf24;
    --danger: #f87171;
    --radius-xl: 28px;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-glow: 0 8px 40px rgba(167, 139, 250, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
    --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Vazirmatn', 'Vazir', 'Tahoma', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--bg-deep);
    color: var(--text-1);
    overflow-x: hidden;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================================================
   Animated Aurora Background
   ================================================== */
.aurora {
    position: fixed;
    inset: 0;
    z-index: -2;
    background: radial-gradient(ellipse at top, var(--bg-2), var(--bg-deep) 60%);
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.orb-1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, #a78bfa, transparent 70%);
    top: -200px; right: -200px;
    animation: orb-float 25s ease-in-out infinite;
}

.orb-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, #f472b6, transparent 70%);
    bottom: -100px; left: -150px;
    animation: orb-float 30s ease-in-out infinite reverse;
}

.orb-3 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, #38bdf8, transparent 70%);
    top: 40%; right: 30%;
    animation: orb-float 28s ease-in-out infinite;
}

.orb-4 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, #34d399, transparent 70%);
    top: 70%; left: 20%;
    animation: orb-float 32s ease-in-out infinite;
}

.grid-mesh {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(167, 139, 250, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(167, 139, 250, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
}

.stars {
    position: absolute;
    inset: 0;
}

.star {
    position: absolute;
    width: 2px; height: 2px;
    background: white;
    border-radius: 50%;
    opacity: 0;
    animation: twinkle 3s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0; transform: scale(0.5); }
    50% { opacity: 0.9; transform: scale(1.2); }
}

@keyframes orb-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(80px, -60px) scale(1.1); }
    66% { transform: translate(-50px, 40px) scale(0.95); }
}

/* ==================================================
   Glass Effect
   ================================================== */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-card);
}

/* ==================================================
   Navigation
   ================================================== */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    transition: var(--transition);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    gap: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-1);
}

.brand-logo {
    width: 44px; height: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: var(--shadow-glow);
    animation: pulse 3s ease infinite;
}

.brand-logo svg { width: 22px; height: 22px; }

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-name {
    font-size: 15px;
    font-weight: 700;
}

.brand-sub {
    font-size: 12px;
    color: var(--text-3);
    font-weight: 500;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    color: var(--text-2);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-1);
    background: var(--glass-strong);
}

.nav-link.active {
    color: white;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow: var(--shadow-glow);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 8px 40px rgba(167, 139, 250, 0.3); }
    50% { box-shadow: 0 8px 40px rgba(167, 139, 250, 0.55); }
}

/* ==================================================
   Buttons
   ================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    border-radius: var(--radius-md);
    border: none;
    font-family: var(--font);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
    box-shadow: 0 4px 20px rgba(167, 139, 250, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(167, 139, 250, 0.55);
}

.btn-ghost {
    background: var(--glass-strong);
    color: var(--text-1);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: var(--glass-strong);
    border-color: var(--accent);
    color: var(--accent);
}

.btn-sm { padding: 10px 18px; font-size: 13px; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

/* ==================================================
   Hero
   ================================================== */
.hero {
    position: relative;
    padding: 80px 0 60px;
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    animation: fadeUp 0.8s ease;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-2);
    margin-bottom: 24px;
}

.pulse-dot {
    width: 8px; height: 8px;
    background: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--success);
    animation: ping 1.5s ease infinite;
}

@keyframes ping {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.7; }
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--accent-3));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 6s ease infinite;
    display: inline-block;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-desc {
    font-size: 17px;
    color: var(--text-2);
    line-height: 1.8;
    max-width: 560px;
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 14px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.hero-deadline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-3);
    font-size: 14px;
}

.hero-deadline strong {
    color: var(--warning);
    font-weight: 700;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 480px;
    animation: fadeUp 1s ease 0.2s backwards;
}

.float-card {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 320px;
    padding: 24px;
    border-radius: var(--radius-xl);
    z-index: 10;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(-50%, -50%); }
    50% { transform: translate(-50%, -55%); }
}

.float-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.float-avatar {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--accent-3), var(--accent));
    box-shadow: var(--shadow-glow);
}

.float-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-1);
}

.float-meta {
    font-size: 12px;
    color: var(--text-3);
}

.float-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 18px;
}

.float-stat {
    padding: 14px;
    border-radius: var(--radius-md);
    background: var(--glass-strong);
    text-align: center;
}

.float-stat-num {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 4px;
}

.float-stat-label {
    font-size: 11px;
    color: var(--text-3);
}

.float-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 80px;
}

.float-chart .bar {
    flex: 1;
    background: linear-gradient(180deg, var(--accent), var(--accent-2));
    border-radius: 4px 4px 0 0;
    animation: bar-grow 1s ease;
}

@keyframes bar-grow {
    from { transform: scaleY(0); }
    to { transform: scaleY(1); }
}

.float-chart .bar { transform-origin: bottom; }

.orbit-ring {
    position: absolute;
    border: 1px dashed rgba(167, 139, 250, 0.2);
    border-radius: 50%;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
}

.ring-1 { width: 380px; height: 380px; animation: rotate 30s linear infinite; }
.ring-2 { width: 480px; height: 480px; animation: rotate 45s linear infinite reverse; }

.orbit-dot {
    position: absolute;
    width: 16px; height: 16px;
    border-radius: 50%;
    top: 50%; left: 50%;
}

.dot-1 {
    background: var(--accent);
    box-shadow: 0 0 20px var(--accent);
    animation: orbit-1 8s linear infinite;
}

.dot-2 {
    background: var(--accent-2);
    box-shadow: 0 0 20px var(--accent-2);
    animation: orbit-2 12s linear infinite;
}

.dot-3 {
    background: var(--accent-3);
    box-shadow: 0 0 20px var(--accent-3);
    animation: orbit-3 10s linear infinite;
}

@keyframes rotate {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes orbit-1 {
    from { transform: translate(-50%, -50%) rotate(0) translateX(190px) rotate(0); }
    to { transform: translate(-50%, -50%) rotate(360deg) translateX(190px) rotate(-360deg); }
}

@keyframes orbit-2 {
    from { transform: translate(-50%, -50%) rotate(120deg) translateX(240px) rotate(-120deg); }
    to { transform: translate(-50%, -50%) rotate(480deg) translateX(240px) rotate(-480deg); }
}

@keyframes orbit-3 {
    from { transform: translate(-50%, -50%) rotate(240deg) translateX(190px) rotate(-240deg); }
    to { transform: translate(-50%, -50%) rotate(600deg) translateX(190px) rotate(-600deg); }
}

/* ==================================================
   Stats Strip
   ================================================== */
.stats-strip {
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-card {
    padding: 28px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
}

.stat-icon {
    width: 56px; height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.2), rgba(244, 114, 182, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--accent);
}

.stat-icon svg { width: 26px; height: 26px; }

.stat-value {
    font-size: 38px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 8px;
    font-feature-settings: "tnum";
}

.stat-label {
    font-size: 13px;
    color: var(--text-3);
    font-weight: 500;
}

/* ==================================================
   Sections
   ================================================== */
.section {
    padding: 80px 0;
}

.section-dark {
    background: rgba(15, 12, 41, 0.4);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.section-head {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 20px;
    background: rgba(167, 139, 250, 0.15);
    border: 1px solid rgba(167, 139, 250, 0.3);
    color: var(--accent);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--text-1), var(--text-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-desc {
    font-size: 16px;
    color: var(--text-3);
    max-width: 600px;
    margin: 0 auto;
}

/* ==================================================
   Features Grid
   ================================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.1), transparent);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
}

.feature-card:hover::before { opacity: 1; }

.feature-icon {
    width: 64px; height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.feature-icon svg { width: 30px; height: 30px; }

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-1);
}

.feature-card p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
}

/* ==================================================
   Top Courses
   ================================================== */
.top-courses {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 800px;
    margin: 0 auto;
}

.top-course-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.top-course-card:hover {
    transform: translateX(-6px);
    border-color: var(--accent);
}

.rank {
    font-size: 32px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    min-width: 50px;
}

.course-info { flex: 1; }

.course-info h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 6px;
}

.course-meta {
    display: flex;
    gap: 10px;
    font-size: 12px;
    color: var(--text-3);
}

.tag {
    padding: 2px 10px;
    border-radius: 10px;
    background: var(--glass-strong);
    color: var(--accent-3);
    font-weight: 600;
}

.course-count { text-align: left; }

.count-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.count-label {
    font-size: 11px;
    color: var(--text-3);
}

/* ==================================================
   Steps
   ================================================== */
.steps {
    display: flex;
    align-items: stretch;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 200px;
    padding: 28px 20px;
    border-radius: var(--radius-lg);
    text-align: center;
}

.step-num {
    width: 50px; height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: white;
    font-size: 20px;
    font-weight: 800;
    box-shadow: var(--shadow-glow);
}

.step h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 8px;
}

.step p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.6;
}

.step-arrow {
    display: flex;
    align-items: center;
    color: var(--accent);
    opacity: 0.5;
}

/* ==================================================
   CTA
   ================================================== */
.cta-section {
    padding: 80px 0 100px;
}

.cta-card {
    padding: 60px 40px;
    border-radius: var(--radius-xl);
    text-align: center;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.15), rgba(244, 114, 182, 0.1));
    border-color: rgba(167, 139, 250, 0.3);
}

.cta-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-desc {
    font-size: 16px;
    color: var(--text-2);
    margin-bottom: 28px;
}

/* ==================================================
   Footer
   ================================================== */
.footer {
    border-top: 1px solid var(--glass-border);
    padding: 60px 0 30px;
    background: rgba(5, 5, 20, 0.6);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 14px;
    color: var(--text-1);
    margin-bottom: 16px;
    font-weight: 700;
}

.footer-col a {
    display: block;
    color: var(--text-3);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 0;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent);
    padding-right: 6px;
}

.footer-desc {
    font-size: 13px;
    color: var(--text-3);
    margin-top: 16px;
    line-height: 1.6;
}

.footer-meta {
    font-size: 13px;
    color: var(--text-3);
    margin: 4px 0;
}

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
    text-align: center;
    font-size: 12px;
    color: var(--text-3);
}

/* ==================================================
   Animations
   ================================================== */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================================================
   Dashboard page specifics
   ================================================== */
.dashboard-hero {
    padding: 60px 0 40px;
    text-align: center;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.chart-card {
    padding: 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.chart-card h3 {
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--text-1);
    font-weight: 700;
}

.chart-wrap {
    position: relative;
    height: 300px;
}

/* ==================================================
   Courses page
   ================================================== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.course-tile {
    padding: 20px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.course-tile:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.course-tile h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: var(--text-1);
}

.course-tile .meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-3);
}

/* ==================================================
   Responsive
   ================================================== */
@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .hero-title { font-size: 36px; }
    .section-title { font-size: 26px; }
    .nav-links { display: none; }
    .features-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .steps { flex-direction: column; }
    .step-arrow { transform: rotate(90deg); }
    .dashboard-grid { grid-template-columns: 1fr; }
    .courses-grid { grid-template-columns: 1fr; }
    .container { padding: 0 16px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 28px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
}