:root {
    /* Dark theme (default) */
    --bg-color: #0f0f11;
    --text-color: #f0f0f2;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent-color: #6366f1;
    --accent-secondary: #a855f7;
    --accent-glow: rgba(99, 102, 241, 0.25);
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --shadow-color: rgba(0, 0, 0, 0.4);
    --gradient-overlay-1: rgba(99, 102, 241, 0.08);
    --gradient-overlay-2: rgba(168, 85, 247, 0.08);
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --max-width: 1000px;
}

/* Light theme */
@media (prefers-color-scheme: light) {
    :root {
        --bg-color: #ffffff;
        --text-color: #1f2937;
        --text-secondary: #4b5563;
        --text-muted: #6b7280;
        --accent-color: #6366f1;
        --accent-secondary: #a855f7;
        --accent-glow: rgba(99, 102, 241, 0.15);
        --card-bg: rgba(0, 0, 0, 0.02);
        --card-border: rgba(0, 0, 0, 0.08);
        --shadow-color: rgba(0, 0, 0, 0.1);
        --gradient-overlay-1: rgba(99, 102, 241, 0.03);
        --gradient-overlay-2: rgba(168, 85, 247, 0.03);
    }
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 15% 50%, var(--gradient-overlay-1) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, var(--gradient-overlay-2) 0%, transparent 25%);
}

a {
    color: var(--text-color);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

a:hover {
    opacity: 0.8;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    padding: 40px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

nav {
    display: flex;
    gap: 24px;
}

nav a {
    font-size: 0.95rem;
    color: var(--text-muted);
}

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

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
}

.hero-icon {
    width: 120px;
    height: 120px;
    border-radius: 28px;
    margin-bottom: 40px;
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    line-height: 1.1;
    background: linear-gradient(135deg, #fff 0%, #a5a5a5 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    max-width: 14ch;
    margin-left: auto;
    margin-right: auto;
    text-wrap: balance;
}

@media (prefers-color-scheme: light) {
    .hero h1 {
        background: linear-gradient(135deg, #1f2937 0%, #4b5563 100%);
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 580px;
    margin: 0 auto 48px;
    font-weight: 400;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: #fff;
    padding: 16px 36px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.4);
    opacity: 1;
}

.cta-disabled {
    background: var(--card-bg);
    color: var(--text-muted);
    box-shadow: none;
    border: 1px solid var(--card-border);
    cursor: not-allowed;
}

.cta-disabled:hover {
    transform: none;
    box-shadow: none;
    opacity: 1;
}

/* Story Section */
.story-section {
    padding: 100px 0;
    max-width: 700px;
    margin: 0 auto;
}

.story-content {
    font-size: 1.15rem;
    color: var(--text-secondary);
}

.story-content p {
    margin-bottom: 24px;
}

.story-content strong {
    color: var(--text-color);
    font-weight: 600;
}

.highlight {
    color: var(--accent-color);
}

/* Values Grid */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 60px;
    text-align: center;
}

.value-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 20px;
    border-radius: 16px;
    color: var(--text-color);
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.2s ease;
}

.value-item:hover {
    transform: translateY(-2px);
    background: var(--card-bg);
    border-color: var(--accent-color);
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* Feature Showcase */
.feature-showcase {
    padding: 80px 0;
    display: flex;
    flex-direction: column;
    gap: 120px;
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 60px;
}

.feature-row:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-text h3 {
    font-size: 2rem;
    margin-bottom: 24px;
    color: var(--text-color);
    background: linear-gradient(135deg, #fff 0%, #a5a5a5 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (prefers-color-scheme: light) {
    .feature-text h3 {
        background: linear-gradient(135deg, #1f2937 0%, #4b5563 100%);
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
}

.feature-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.feature-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.feature-image img {
    max-width: 100%;
    height: auto;
    max-height: 600px;
    border-radius: 32px;
    border: 4px solid var(--card-border);
    box-shadow: 0 30px 60px var(--shadow-color);
    transition: transform 0.3s ease;
}

.feature-image img:hover {
    transform: scale(1.02);
}

.feature-video {
    max-width: 100%;
    height: auto;
    max-height: 600px;
    border-radius: 32px;
    border: 4px solid var(--card-border);
    box-shadow: 0 30px 60px var(--shadow-color);
}

@media (max-width: 768px) {

    .feature-row,
    .feature-row:nth-child(even) {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }

    .feature-image img {
        max-height: 500px;
    }
}

/* Footer */
footer {
    padding: 80px 0 40px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer .links {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    gap: 24px;
}

footer a {
    color: var(--text-muted);
}

footer a:hover {
    color: var(--text-secondary);
}

/* Legal Pages */
.legal-content {
    max-width: 700px;
    margin: 80px auto;
}

.legal-content h1 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    background: linear-gradient(135deg, #fff 0%, #a5a5a5 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@media (prefers-color-scheme: light) {
    .legal-content h1 {
        background: linear-gradient(135deg, #1f2937 0%, #4b5563 100%);
        background-clip: text;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
}

.legal-content h2 {
    margin-top: 48px;
    margin-bottom: 16px;
    color: var(--text-color);
    font-size: 1.5rem;
}

.legal-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 1.05rem;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .story-section {
        padding: 60px 0;
    }
}

/* Adaptive Screenshots and Icons */
/* Dark mode: show dark assets, hide light assets */
@media (prefers-color-scheme: dark) {

    .screenshot-light,
    .icon-light {
        display: none !important;
    }

    .screenshot-dark,
    .icon-dark {
        display: inline-block;
    }
}

/* Light mode: show light assets, hide dark assets */
@media (prefers-color-scheme: light) {
    .icon-dark {
        display: none !important;
    }

    .icon-light {
        display: inline-block;
    }

    /* For screenshots: show light, hide dark */
    .screenshot-light {
        display: block;
    }

    .screenshot-dark {
        display: none;
    }
}
.feature-image figcaption {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}