/**
 * Any53 Landing Page Styles
 *
 * Self-contained styles for the /any53/ index page.
 * Includes its own design tokens (CSS custom properties) so it doesn't
 * depend on base.css — the landing page is a standalone template.
 */

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

/* Light mode (default) */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --accent: #0066cc;
    --accent-dim: #0052a3;
    --accent-light: #e0f2ff;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --success: #059669;
    --success-bg: #d1fae5;
    --warning: #d97706;
    --warning-bg: #fef3c7;
    --error: #dc2626;
    --error-bg: #fee2e2;
    --border: #e2e8f0;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, "SF Mono", Menlo, Monaco, "Cascadia Code", Consolas, monospace;
}

/* Dark mode: OS preference (unless user explicitly chose light) */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-primary: #0f0f1a;
        --bg-secondary: #1a1a2e;
        --bg-tertiary: #252540;
        --accent: #00d4ff;
        --accent-dim: #0099bb;
        --accent-light: #1a3a4a;
        --text-primary: #f0f0f0;
        --text-secondary: #9ca3af;
        --text-muted: #6b7280;
        --success: #10b981;
        --success-bg: #064e3b;
        --warning: #f59e0b;
        --warning-bg: #78350f;
        --error: #ef4444;
        --error-bg: #7f1d1d;
        --border: #374151;
        --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    }
}

/* Dark mode: Manual toggle override */
:root[data-theme="dark"] {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #252540;
    --accent: #00d4ff;
    --accent-dim: #0099bb;
    --accent-light: #1a3a4a;
    --text-primary: #f0f0f0;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --success: #10b981;
    --success-bg: #064e3b;
    --warning: #f59e0b;
    --warning-bg: #78350f;
    --error: #ef4444;
    --error-bg: #7f1d1d;
    --border: #374151;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Skip link for keyboard navigation - visually hidden until focused */
.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    z-index: 1000;
}
.skip-link:focus {
    position: fixed;
    top: 0;
    left: 0;
    width: auto;
    height: auto;
    overflow: visible;
    background: var(--accent);
    color: #ffffff;
    padding: 0.75rem 1rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 var(--radius) 0;
    outline: 3px solid var(--text-primary);
    outline-offset: 2px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1024px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.hero {
    text-align: center;
    padding: 3rem 1.5rem;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 2rem;
}
.hero h1 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}
.hero .tagline {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 1.5rem;
}
.hero .cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}
.hero .cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    text-decoration: none;
    transition: all 0.15s;
}
.hero .cta-btn.primary {
    background: var(--accent);
    color: #ffffff;
}
.hero .cta-btn.primary:hover {
    background: var(--accent-dim);
}
.hero .cta-btn.primary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.hero .cta-btn.secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.hero .cta-btn.secondary:hover {
    border-color: var(--accent-dim);
}
.hero .cta-btn.secondary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}
.nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.15s;
}
.nav a:hover {
    color: var(--accent);
    border-color: var(--accent-dim);
}
.nav a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
.nav a.active,
.nav a[aria-current="page"] {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--bg-tertiary);
}

/* Theme toggle button */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    padding: 0.5rem;
    font-size: 1.25rem;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s;
    margin-left: 0.5rem;
}
.theme-toggle:hover {
    color: var(--accent);
    border-color: var(--accent-dim);
}
.theme-toggle:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}
.feature {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}
.feature-icon {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}
.feature h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}
.feature p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.data-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
}
.data-section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}
.data-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.data-item .check {
    color: var(--success);
    font-weight: bold;
}

.pricing {
    text-align: center;
    padding: 2rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 2rem;
}
.pricing h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}
.pricing .subtitle {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}
.pricing .contact-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    min-width: 44px;
    padding: 0.875rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    background: var(--accent);
    color: #ffffff;
    border-radius: var(--radius);
    text-decoration: none;
    transition: background 0.15s;
}
.pricing .contact-btn:hover {
    background: var(--accent-dim);
}
.pricing .contact-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.free-tier {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
}
.free-tier h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}
.free-tier p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}
.free-tier a {
    color: var(--accent);
    text-decoration: none;
    text-underline-offset: 2px;
}
.free-tier a:hover {
    text-decoration: underline;
}
.free-tier a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}
.footer a {
    color: var(--accent);
    text-decoration: none;
    text-underline-offset: 2px;
}
.footer a:hover {
    text-decoration: underline;
}
.footer a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1rem;
    }
    .hero h1 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .nav {
        flex-direction: column;
    }
    .nav a {
        width: 100%;
        text-align: center;
    }
    .theme-toggle {
        margin-left: 0;
        margin-top: 0.5rem;
    }
    .hero .cta-buttons {
        flex-direction: column;
    }
    .hero .cta-btn {
        width: 100%;
    }
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}
.stat-box {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: var(--radius);
    text-align: center;
    border: 1px solid var(--border);
}
.stat-value {
    font-size: 1.75rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
}
.stat-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}
.stat-value.accent { color: var(--accent); }
.stats-grid.cols-5 {
    grid-template-columns: repeat(5, 1fr);
}
@media (max-width: 900px) {
    .stats-grid.cols-5 { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
}