/* ================================================================
   Hidden Talent Club — Design System & Styles
   ================================================================ */

:root {
    /* Colors */
    --clr-bg: #0a0a0f;
    --clr-bg-elevated: #12121a;
    --clr-bg-card: #16161f;
    --clr-surface: #1e1e2a;
    --clr-border: rgba(255, 255, 255, 0.06);
    --clr-text: #e4e4ec;
    --clr-text-muted: #8b8b9e;
    --clr-text-dim: #5e5e72;
    --clr-accent: #6c5ce7;
    --clr-accent-light: #a29bfe;
    --clr-accent-glow: rgba(108, 92, 231, 0.3);
    --clr-gradient-1: #6c5ce7;
    --clr-gradient-2: #00cec9;
    --clr-gradient-3: #fd79a8;
    --clr-success: #00b894;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 2rem;
    --font-4xl: 2.75rem;
    --font-5xl: 3.5rem;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

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

body {
    font-family: var(--font-family);
    background: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

/* ================================================================
   Container
   ================================================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* ================================================================
   Navbar
   ================================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) 0;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: rgba(10, 10, 15, 0.8);
    border-bottom: 1px solid var(--clr-border);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    padding: var(--space-sm) 0;
    background: rgba(10, 10, 15, 0.95);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: var(--font-lg);
    letter-spacing: -0.02em;
}

.logo-icon {
    color: var(--clr-accent-light);
    font-size: var(--font-xl);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-2xl);
}

.nav-links a {
    font-size: var(--font-sm);
    font-weight: 500;
    color: var(--clr-text-muted);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--clr-accent);
    transition: width var(--transition-base);
}

.nav-links a:hover {
    color: var(--clr-text);
}

.nav-links a:hover::after {
    width: 100%;
}

/* ================================================================
   Hero
   ================================================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(108, 92, 231, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 40% 40% at 80% 50%, rgba(0, 206, 201, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse 30% 30% at 20% 60%, rgba(253, 121, 168, 0.04) 0%, transparent 60%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% {
        opacity: 0.7;
    }

    100% {
        opacity: 1;
    }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    background: rgba(108, 92, 231, 0.12);
    border: 1px solid rgba(108, 92, 231, 0.25);
    color: var(--clr-accent-light);
    font-size: var(--font-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xl);
    animation: fadeInDown 0.8s ease;
}

.hero h1 {
    font-size: var(--font-5xl);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease 0.1s both;
}

.gradient-text {
    background: linear-gradient(135deg, var(--clr-gradient-1), var(--clr-gradient-2), var(--clr-gradient-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-lg);
    color: var(--clr-text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
    line-height: 1.75;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: var(--font-2xl);
    font-weight: 700;
    color: var(--clr-accent-light);
}

.stat-label {
    font-size: var(--font-xs);
    color: var(--clr-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--clr-border);
}

/* ================================================================
   Buttons
   ================================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-gradient-1), #8b5cf6);
    color: white;
    box-shadow: 0 4px 20px var(--clr-accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 92, 231, 0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--clr-text-muted);
    border: 1px solid var(--clr-border);
}

.btn-secondary:hover {
    border-color: var(--clr-accent);
    color: var(--clr-text);
    background: rgba(108, 92, 231, 0.06);
}

.btn-large {
    padding: 16px 36px;
    font-size: var(--font-base);
    border-radius: var(--radius-lg);
}

/* ================================================================
   Sections
   ================================================================ */
.section {
    padding: var(--space-4xl) 0;
}

.section-dark {
    background: var(--clr-bg-elevated);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: inline-block;
    font-size: var(--font-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--clr-accent-light);
    margin-bottom: var(--space-md);
}

.section-header h2 {
    font-size: var(--font-4xl);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
}

.section-header p {
    font-size: var(--font-lg);
    color: var(--clr-text-muted);
    max-width: 500px;
    margin: 0 auto;
}

/* ================================================================
   Steps Grid (How It Works)
   ================================================================ */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.step-card {
    position: relative;
    padding: var(--space-2xl);
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    overflow: hidden;
}

.step-card::before {
    content: attr(data-step);
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    font-size: var(--font-4xl);
    font-weight: 800;
    color: rgba(108, 92, 231, 0.08);
    line-height: 1;
}

.step-card:hover {
    border-color: rgba(108, 92, 231, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.step-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(108, 92, 231, 0.15), rgba(0, 206, 201, 0.1));
    color: var(--clr-accent-light);
    margin-bottom: var(--space-lg);
}

.step-card h3 {
    font-size: var(--font-xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.step-card p {
    font-size: var(--font-sm);
    color: var(--clr-text-muted);
    line-height: 1.7;
}

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

.feature-card {
    padding: var(--space-xl);
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: rgba(108, 92, 231, 0.2);
    background: var(--clr-surface);
}

.feature-icon {
    font-size: var(--font-2xl);
    margin-bottom: var(--space-md);
}

.feature-card h3 {
    font-size: var(--font-base);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.feature-card p {
    font-size: var(--font-sm);
    color: var(--clr-text-muted);
    line-height: 1.65;
}

/* ================================================================
   Channels Grid (Submission Options)
   ================================================================ */
.channels-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
}

.channel-card {
    position: relative;
    padding: var(--space-2xl);
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.channel-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

/* Accent colors for each channel */
.channel-accent-purple::before {
    background: linear-gradient(90deg, #6c5ce7, #a29bfe);
}

.channel-accent-teal::before {
    background: linear-gradient(90deg, #00cec9, #81ecec);
}

.channel-accent-pink::before {
    background: linear-gradient(90deg, #fd79a8, #fab1a0);
}

.channel-accent-amber::before {
    background: linear-gradient(90deg, #fdcb6e, #f39c12);
}

.channel-accent-green::before {
    background: linear-gradient(90deg, #00b894, #55efc4);
}

/* Full-width card spanning both columns */
.channel-wide {
    grid-column: 1 / -1;
}

.channel-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.channel-accent-purple:hover {
    border-color: rgba(108, 92, 231, 0.35);
}

.channel-accent-teal:hover {
    border-color: rgba(0, 206, 201, 0.35);
}

.channel-accent-pink:hover {
    border-color: rgba(253, 121, 168, 0.35);
}

.channel-accent-amber:hover {
    border-color: rgba(253, 203, 110, 0.35);
}

.channel-accent-green:hover {
    border-color: rgba(0, 184, 148, 0.35);
}

.channel-number {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    font-size: var(--font-4xl);
    font-weight: 800;
    line-height: 1;
    opacity: 0.06;
    color: white;
}

.channel-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.channel-card h3 {
    font-size: var(--font-xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.channel-card>p {
    font-size: var(--font-sm);
    color: var(--clr-text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.channel-list {
    list-style: none;
    margin-bottom: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.channel-list li {
    font-size: var(--font-sm);
    color: var(--clr-text-muted);
    padding-left: var(--space-lg);
    position: relative;
}

.channel-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--clr-accent-light);
    font-weight: 600;
}

.channel-requirements {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
}

.req-tag {
    font-size: var(--font-xs);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--clr-border);
    color: var(--clr-text-dim);
}

.channel-highlight {
    margin-bottom: var(--space-lg);
}

.highlight-label {
    font-size: var(--font-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--clr-accent-light);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: rgba(108, 92, 231, 0.1);
    border: 1px solid rgba(108, 92, 231, 0.2);
}

.btn-channel {
    margin-top: auto;
    align-self: flex-start;
    font-size: var(--font-sm);
    padding: 10px 20px;
}

/* Accent-specific button colors */
.channel-accent-teal .btn-channel {
    background: linear-gradient(135deg, #00b894, #00cec9);
    box-shadow: 0 4px 20px rgba(0, 206, 201, 0.25);
}

.channel-accent-teal .btn-channel:hover {
    box-shadow: 0 8px 30px rgba(0, 206, 201, 0.4);
}

.channel-accent-pink .btn-channel {
    background: linear-gradient(135deg, #e17055, #fd79a8);
    box-shadow: 0 4px 20px rgba(253, 121, 168, 0.25);
}

.channel-accent-pink .btn-channel:hover {
    box-shadow: 0 8px 30px rgba(253, 121, 168, 0.4);
}

.channel-accent-amber .btn-channel {
    background: linear-gradient(135deg, #f39c12, #fdcb6e);
    box-shadow: 0 4px 20px rgba(243, 156, 18, 0.25);
    color: #1a1a2e;
}

.channel-accent-amber .btn-channel:hover {
    box-shadow: 0 8px 30px rgba(243, 156, 18, 0.4);
}

.channel-accent-green .btn-channel {
    background: linear-gradient(135deg, #00b894, #55efc4);
    box-shadow: 0 4px 20px rgba(0, 184, 148, 0.25);
    color: #1a1a2e;
}

.channel-accent-green .btn-channel:hover {
    box-shadow: 0 8px 30px rgba(0, 184, 148, 0.4);
}

/* ================================================================
   Footer
   ================================================================ */
.footer {
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--clr-border);
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
}

.footer-text {
    font-size: var(--font-sm);
    color: var(--clr-text-dim);
}

/* ================================================================
   Animations
   ================================================================ */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================================================
   Responsive
   ================================================================ */
@media (max-width: 768px) {
    .hero h1 {
        font-size: var(--font-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-base);
    }

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

    .steps-grid,
    .features-grid,
    .channels-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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