/* ========================================
   CSS Variables & Reset
   ======================================== */
:root {
    /* Colors - Dark theme with warm cinematic tones */
    --color-bg: #000000;
    --color-bg-secondary: #111111;
    --color-bg-tertiary: #1a1a1a;
    --color-text: #f5f5f7;
    --color-text-secondary: #a1a1a6;
    --color-text-tertiary: #6e6e73;
    --color-primary: #ff4d6a;
    --color-primary-hover: #e0324f;
    --color-border: #2d2d2d;
    --color-success: #30d158;
    --color-accent: #ff9f0a;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Courier New', monospace;

    /* Layout */
    --max-width: 1200px;
    --nav-height: 60px;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    font-size: 17px;
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ========================================
   Layout
   ======================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

section {
    padding: var(--space-4xl) 0;
}

section h2 {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-3xl);
    letter-spacing: -0.02em;
}

/* ========================================
   Navigation
   ======================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: 18px;
    color: var(--color-text);
    text-decoration: none;
}

.nav-logo img {
    border-radius: 6px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    color: var(--color-text-secondary);
    font-size: 14px;
    text-decoration: none;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--color-text);
    text-decoration: none;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    left: 0;
}

.nav-toggle span::before { top: -8px; }
.nav-toggle span::after { top: 8px; }

@media (max-width: 768px) {
    .nav-toggle { display: block; }

    .nav-links {
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--color-bg);
        padding: var(--space-lg);
        gap: var(--space-md);
        border-bottom: 1px solid var(--color-border);
        display: none;
    }

    .nav-links.active { display: flex; }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: 980px;
    font-size: 17px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn:hover { text-decoration: none; }

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
}

.btn-secondary {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.btn-secondary:hover {
    background: var(--color-border);
}

.btn-small { padding: 8px 16px; font-size: 14px; }
.btn-large { padding: 18px 36px; font-size: 18px; }

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding-top: calc(var(--nav-height) + var(--space-4xl));
    padding-bottom: var(--space-4xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.hero h1 {
    font-size: clamp(40px, 7vw, 72px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.hero h1 .accent {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 21px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 540px;
}

@media (max-width: 900px) {
    .hero-subtitle { margin-left: auto; margin-right: auto; }
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

@media (max-width: 900px) {
    .hero-buttons { justify-content: center; flex-wrap: wrap; }
}

.hero-meta {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

/* Hero screenshot / carousel */
.hero-visual {
    display: flex;
    justify-content: center;
    perspective: 1000px;
}

.hero-screenshot {
    border-radius: var(--border-radius-lg);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 25px 50px rgba(0, 0, 0, 0.6),
        0 0 100px rgba(255, 77, 106, 0.1);
    max-width: 100%;
}

/* Placeholder for screenshot */
.screenshot-placeholder-hero {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 16/10;
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.05),
        0 25px 50px rgba(0, 0, 0, 0.6),
        0 0 100px rgba(255, 77, 106, 0.08);
}

.screenshot-placeholder-hero .placeholder-icon {
    font-size: 64px;
    opacity: 0.3;
}

.screenshot-placeholder-hero .placeholder-text {
    font-size: 14px;
    color: var(--color-text-tertiary);
}

/* ========================================
   Features Section
   ======================================== */
.features {
    background: var(--color-bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
}

.feature {
    text-align: center;
    padding: var(--space-xl);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.feature h3 {
    font-size: 21px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature p {
    color: var(--color-text-secondary);
    font-size: 15px;
}

/* ========================================
   How It Works
   ======================================== */
.how-it-works {
    background: var(--color-bg);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 700px) {
    .steps-grid { grid-template-columns: 1fr; }
}

.step {
    text-align: center;
    padding: var(--space-xl);
    position: relative;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.step h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.step p {
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* ========================================
   Comparison Section
   ======================================== */
.comparison {
    background: var(--color-bg-secondary);
}

.comparison-table-wrapper {
    max-width: 800px;
    margin: 0 auto;
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-md);
    text-align: center;
    border-bottom: 1px solid var(--color-border);
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
}

.comparison-table th {
    font-weight: 600;
    background: var(--color-bg-tertiary);
}

.comparison-table th.highlight {
    background: rgba(255, 77, 106, 0.1);
    color: var(--color-primary);
}

.comparison-table td.highlight {
    background: rgba(255, 77, 106, 0.03);
}

/* ========================================
   Roadmap Section
   ======================================== */
.roadmap {
    background: var(--color-bg);
}

.roadmap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
}

.roadmap-card {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: transform 0.2s;
}

.roadmap-card:hover { transform: translateY(-2px); }

.roadmap-icon {
    font-size: 36px;
    margin-bottom: var(--space-md);
}

.roadmap-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.roadmap-card p {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.badge-coming-soon {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(255, 159, 10, 0.15);
    color: #ff9f0a;
}

.badge-available {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: rgba(48, 209, 88, 0.15);
    color: var(--color-success);
}

/* ========================================
   FAQ Section
   ======================================== */
.faq {
    background: var(--color-bg-secondary);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--color-border);
}

.faq-item summary {
    padding: var(--space-lg) 0;
    cursor: pointer;
    font-weight: 500;
    font-size: 17px;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::after {
    content: '+';
    font-size: 24px;
    color: var(--color-text-secondary);
}

.faq-item[open] summary::after { content: '−'; }

.faq-item p {
    padding: 0 0 var(--space-lg);
    color: var(--color-text-secondary);
}

/* ========================================
   CTA Section
   ======================================== */
.cta {
    background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-secondary) 100%);
    text-align: center;
}

.cta h2 { margin-bottom: var(--space-md); }

.cta p {
    color: var(--color-text-secondary);
    font-size: 21px;
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-bg);
    padding: var(--space-3xl) 0 var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-3xl);
}

@media (max-width: 700px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 14px;
}

.footer-brand img {
    border-radius: 10px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

@media (max-width: 500px) {
    .footer-links { grid-template-columns: 1fr; }
}

.footer-column h4 {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.footer-column a {
    display: block;
    color: var(--color-text);
    font-size: 14px;
    padding: var(--space-xs) 0;
}

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

.footer-bottom {
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--color-text-tertiary);
}