/* === Variables === */
:root {
    --color-bg: #0a0a0b;
    --color-bg-elevated: #141416;
    --color-bg-card: #1a1a1d;
    --color-border: #2a2a2e;
    --color-text: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    --color-primary: #8b5cf6;
    --color-primary-hover: #7c3aed;
    --color-accent: #22d3ee;
    --color-success: #22c55e;
    --color-warning: #eab308;
    --color-danger: #ef4444;
    --gradient: linear-gradient(135deg, #8b5cf6 0%, #22d3ee 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

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

/* === Navigation === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 1.125rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-nav {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 8px 16px;
}

.btn-nav:hover {
    background: var(--color-bg-card);
    border-color: var(--color-text-muted);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
    border-radius: var(--radius);
}

.btn-support {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

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

.btn-coffee {
    background: #ffdd00;
    color: #000;
    border-color: #ffdd00;
}

.btn-coffee:hover {
    background: #e6c700;
    border-color: #e6c700;
}

/* === Hero === */
.hero {
    padding: 160px 0 80px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.hero-meta {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* === Demo Visual === */
.hero-demo {
    margin-top: 64px;
}

.demo-window {
    max-width: 500px;
    margin: 0 auto;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.demo-titlebar {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
}

.demo-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.demo-dot.red { background: #ff5f56; }
.demo-dot.yellow { background: #ffbd2e; }
.demo-dot.green { background: #27c93f; }

.demo-content {
    padding: 48px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.demo-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(34, 211, 238, 0.2) 100%);
    border: 1px solid rgba(139, 92, 246, 0.4);
    border-radius: 100px;
    font-weight: 500;
}

.pulse {
    width: 10px;
    height: 10px;
    background: var(--color-danger);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.1); }
}

.demo-hotkey {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

kbd {
    display: inline-block;
    padding: 4px 10px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

/* === How It Works === */
.how-it-works {
    padding: 80px 0;
    background: var(--color-bg-elevated);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: 48px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.step {
    position: relative;
    text-align: center;
    padding: 32px 24px;
}

.step-number {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 600;
}

.step-icon {
    font-size: 3rem;
    margin: 24px 0;
}

.step h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.step p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

/* === Features === */
.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.feature {
    padding: 32px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: border-color 0.2s, transform 0.2s;
}

.feature:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature p {
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* === Compare Table === */
.compare {
    padding: 100px 0;
    background: var(--color-bg-elevated);
}

.compare-table-wrapper {
    max-width: 700px;
    margin: 48px auto 0;
    overflow-x: auto;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.compare-table th,
.compare-table td {
    padding: 16px 24px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.compare-table th {
    background: var(--color-bg-elevated);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.compare-table td {
    font-size: 0.9375rem;
}

.compare-table tr:last-child td {
    border-bottom: none;
}

.compare-table tr.highlight {
    background: rgba(139, 92, 246, 0.1);
}

.compare-table tr.highlight td {
    border-bottom: none;
}

.cost {
    font-weight: 500;
    color: var(--color-text-secondary);
}

.cost.free {
    color: var(--color-success);
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-green {
    background: rgba(34, 197, 94, 0.15);
    color: var(--color-success);
}

.badge-red {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-danger);
}

/* === Support === */
.support {
    padding: 100px 0;
}

.support-card {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 48px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.support-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.support-card p {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

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

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

.final-cta h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    margin-bottom: 32px;
}

/* === Footer === */
.footer {
    padding: 48px 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

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

/* === Responsive === */
@media (max-width: 768px) {
    .nav-links {
        gap: 16px;
    }
    
    .nav-links a:not(.btn) {
        display: none;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero-subtitle br {
        display: none;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .compare-table th,
    .compare-table td {
        padding: 12px 16px;
    }
    
    .support-card {
        padding: 32px 24px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}