/* =========================================================
   SUNRISE COACHING - QUIZ PORTAL DESIGN SYSTEM
   Author: Sunrise Coaching
   Version: 3.0 (Premium UI)
   ========================================================= */

/* ---------- CSS Variables / Design Tokens ---------- */
:root {
    --primary: #1a73e8;
    --primary-dark: #1557b0;
    --primary-light: #e8f0fe;
    --accent: #ff9100;
    --accent-dark: #e68200;
    --bg: #f7f9fc;
    --bg-alt: #ffffff;
    --bg-soft: #eef2f7;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.12);
    --shadow-xl: 0 24px 60px rgba(15, 23, 42, 0.18);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container: 1200px;
    --gradient-primary: linear-gradient(135deg, #1a73e8 0%, #6c5ce7 100%);
    --gradient-accent: linear-gradient(135deg, #ff9100 0%, #ff3d68 100%);
    --gradient-hero: linear-gradient(135deg, #1a73e8 0%, #6c5ce7 50%, #9333ea 100%);
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* ---------- Container ---------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 5%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    transition: all var(--transition);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1001;
}

.logo-placeholder {
    height: 44px;
    width: 44px;
    object-fit: contain;
    background: var(--gradient-primary);
    border-radius: 10px;
    padding: 6px;
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.brand-name {
    font-size: 1.35rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.3px;
}

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

.nav-links a {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    background: var(--primary-light);
}

/* Hamburger Menu (Mobile) */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
    padding: 8px;
    border-radius: 8px;
    transition: background var(--transition);
}

.hamburger:hover {
    background: var(--bg-soft);
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--text);
    border-radius: 2px;
    transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
    background: var(--primary);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
    background: var(--primary);
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero-banner {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    padding: 80px 24px;
    overflow: hidden;
    background: var(--gradient-hero);
    background-size: 200% 200%;
    animation: gradientShift 12s ease infinite;
}

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

.hero-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('https://images.unsplash.com/photo-1635070041078-e363dbe005cb?auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    opacity: 0.18;
    z-index: 0;
}

.hero-banner::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(15, 23, 42, 0.4) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    letter-spacing: 0.5px;
}

.hero-content h1 {
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -1px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-content h1 .highlight {
    background: linear-gradient(135deg, #ffd700 0%, #ff9100 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: clamp(1rem, 1.6vw, 1.2rem);
    margin-bottom: 32px;
    max-width: 600px;
    margin-inline: auto;
    opacity: 0.95;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    transition: all var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 8px 24px rgba(255, 145, 0, 0.4);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 145, 0, 0.5);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
    transform: translateY(-2px);
}

/* Floating shapes in hero */
.hero-shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    z-index: 1;
    pointer-events: none;
}

.hero-shape-1 {
    width: 300px;
    height: 300px;
    top: -100px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.hero-shape-2 {
    width: 200px;
    height: 200px;
    bottom: -50px;
    left: -50px;
    animation: float 6s ease-in-out infinite reverse;
}

.hero-shape-3 {
    width: 150px;
    height: 150px;
    top: 30%;
    left: 10%;
    animation: float 10s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* Stats Bar */
.hero-stats {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 48px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    color: #fff;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    display: block;
    line-height: 1;
}

.stat-label {
    font-size: 0.85rem;
    opacity: 0.85;
    margin-top: 4px;
}

/* =====================================================
   SECTION HEADINGS
   ===================================================== */
.section {
    padding: 80px 5%;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    color: var(--text);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================================
   CLASS CARDS
   ===================================================== */
.classes-section {
    background: var(--bg);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
    max-width: 1280px;
    margin: 0 auto;
}

.class-card {
    position: relative;
    background: var(--bg-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow: hidden;
}

.class-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.class-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.class-card:hover::before {
    transform: scaleX(1);
}

.class-card-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 16px;
    transition: all var(--transition);
}

.class-card:hover .class-card-icon {
    background: var(--gradient-primary);
    transform: rotate(-5deg) scale(1.05);
}

.class-card h3 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 6px;
}

.class-card .class-card-sub {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.class-card-meta {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.meta-tag {
    background: var(--bg-soft);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.card-link {
    color: var(--accent);
    font-weight: 700;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    transition: gap var(--transition);
}

.class-card:hover .card-link {
    gap: 12px;
}

.class-card.coming-soon {
    opacity: 0.7;
}

.class-card.coming-soon::after {
    content: "Coming Soon";
    position: absolute;
    top: 16px;
    right: -32px;
    background: var(--accent);
    color: #fff;
    padding: 4px 40px;
    font-size: 0.7rem;
    font-weight: 700;
    transform: rotate(35deg);
    box-shadow: var(--shadow-sm);
}

/* =====================================================
   FEATURES SECTION
   ===================================================== */
.features-section {
    background: var(--bg-alt);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: all var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--border);
    background: var(--bg-alt);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    border-radius: 16px;
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 8px 20px rgba(26, 115, 232, 0.25);
}

.feature-card:nth-child(2) .feature-icon {
    background: var(--gradient-accent);
    box-shadow: 0 8px 20px rgba(255, 145, 0, 0.3);
}

.feature-card:nth-child(3) .feature-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.feature-card:nth-child(4) .feature-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.3);
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: "";
    position: absolute;
    width: 400px;
    height: 400px;
    background: var(--primary-light);
    border-radius: 50%;
    top: -200px;
    right: -200px;
    opacity: 0.4;
    filter: blur(60px);
}

.about-container {
    max-width: 880px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.about-container h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--text);
    letter-spacing: -0.5px;
}

.about-container p {
    color: var(--text-muted);
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.about-stat {
    background: var(--bg-alt);
    padding: 24px 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.about-stat:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.about-stat .num {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 4px;
}

.about-stat .label {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 600;
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact-section {
    background: var(--bg);
}

.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
    text-align: left;
}

.contact-info {
    background: var(--bg-alt);
    padding: 36px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}

.contact-info h3 {
    margin-bottom: 20px;
    color: var(--text);
    font-size: 1.3rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px dashed var(--border);
    color: var(--text);
    font-size: 0.95rem;
    line-height: 1.5;
}

.contact-info-item:last-child {
    border-bottom: none;
}

.contact-info-item .icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: 8px;
}

.contact-info-item strong {
    color: var(--text);
    font-weight: 700;
    display: block;
    margin-bottom: 2px;
}

.contact-info-item span {
    color: var(--text-muted);
}

.contact-buttons-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
    justify-content: center;
}

.contact-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 24px;
    color: #fff;
    font-weight: 700;
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.contact-btn::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(-100%);
    transition: transform var(--transition);
}

.contact-btn:hover::before {
    transform: translateX(0);
}

.contact-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.contact-btn .icon {
    font-size: 1.3rem;
    position: relative;
    z-index: 1;
}

.contact-btn span:last-child {
    position: relative;
    z-index: 1;
}

.whatsapp { background: linear-gradient(135deg, #25D366 0%, #1ebe57 100%); }
.call { background: var(--gradient-primary); }
.youtube { background: linear-gradient(135deg, #FF0000 0%, #cc0000 100%); }
.facebook { background: linear-gradient(135deg, #1877F2 0%, #0d65d9 100%); }

/* =====================================================
   FOOTER
   ===================================================== */
footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #cbd5e1;
    padding: 48px 5% 24px;
    margin-top: 0;
}

.footer-container {
    max-width: var(--container);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 32px;
}

.footer-brand h3 {
    color: #fff;
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 12px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: #94a3b8;
    font-size: 0.95rem;
    line-height: 1.6;
    max-width: 360px;
}

.footer-links h4,
.footer-contact h4 {
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.footer-links ul li,
.footer-contact ul li {
    margin-bottom: 10px;
}

.footer-links a,
.footer-contact a {
    color: #cbd5e1;
    font-size: 0.95rem;
    transition: color var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.footer-contact .icon {
    font-size: 1.1rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
    color: #94a3b8;
    font-size: 0.9rem;
}

.footer-bottom p {
    margin: 0;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 992px) {
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 14px 5%;
    }

    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        padding: 100px 32px 32px;
        gap: 4px;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.15);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        width: 100%;
        font-size: 1.05rem;
        padding: 14px 16px;
        border-radius: 10px;
    }

    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
        z-index: 999;
    }

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

    .hero-banner {
        min-height: 480px;
        padding: 60px 20px;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-number {
        font-size: 1.6rem;
    }

    .section {
        padding: 60px 5%;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .brand-name {
        font-size: 1.1rem;
    }

    .logo-placeholder {
        height: 38px;
        width: 38px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

    .contact-container {
        grid-template-columns: 1fr;
    }
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(20px);
        transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
}

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