/* ============================================
   PhrozenCaveSoftware.com — Main Stylesheet
   ============================================ */

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

:root {
    --bg-primary: #0b0e13;
    --bg-secondary: #121620;
    --bg-card: #161b27;
    --bg-card-hover: #1c2235;
    --border-color: #1e2538;
    --text-primary: #e4e8f1;
    --text-secondary: #8a92a6;
    --text-muted: #5c6478;
    --accent: #4a90d9;
    --accent-hover: #5da0e9;
    --accent-glow: rgba(74, 144, 217, 0.15);
    --frost: rgba(255, 255, 255, 0.03);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --max-width: 1140px;
    --radius: 8px;
    --transition: 0.25s ease;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
    color: var(--accent-hover);
}

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

/* --- Typography --- */
h1, h2, h3, h4 {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.75rem; margin-bottom: 1rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.75rem; }

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* --- Layout --- */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

main {
    flex: 1;
}

/* --- Header / Navigation --- */
.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent), #6c5ce7);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition);
    position: relative;
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}

/* Mobile menu toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
}

/* --- Hero Section --- */
.hero {
    padding: 5rem 0 4rem;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

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

.btn-outline:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
    background: var(--frost);
}

/* --- Section styles --- */
.section {
    padding: 4rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header p {
    max-width: 550px;
    margin: 0 auto;
}

/* --- Card Grid --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2rem;
    transition: all var(--transition);
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(74, 144, 217, 0.2);
    transform: translateY(-2px);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--text-primary);
}

.card p {
    font-size: 0.925rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* --- Apps showcase (future) --- */
.apps-section {
    padding: 4rem 0;
}

.apps-placeholder {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius);
}

.apps-placeholder p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- About strip --- */
.about-strip {
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
}

.about-inner {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.about-text {
    flex: 1;
}

.about-text h2 {
    margin-bottom: 0.75rem;
}

/* --- Footer --- */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: auto;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: color var(--transition);
}

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

.footer-copy {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* --- Legal pages (Terms, Privacy) --- */
.legal-page {
    padding: 3rem 0 5rem;
}

.legal-page h1 {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
}

.legal-page .last-updated {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 2.5rem;
}

.legal-content {
    max-width: 800px;
}

.legal-content h2 {
    font-size: 1.35rem;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.legal-content h3 {
    font-size: 1.1rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.legal-content p,
.legal-content li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

.legal-content ul,
.legal-content ol {
    margin: 0.75rem 0 1rem 1.5rem;
}

.legal-content li {
    margin-bottom: 0.4rem;
}

.legal-content a {
    color: var(--accent);
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1.05rem;
    }

    .menu-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 1rem 1.5rem;
        gap: 0.75rem;
    }

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

    .nav-links a.active::after {
        display: none;
    }

    .about-inner {
        flex-direction: column;
        text-align: center;
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }

    .section {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 0 2.5rem;
    }

    .hero h1 {
        font-size: 1.65rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-cta {
        flex-direction: column;
    }
}