/* Coruls – Main Stylesheet */
/* Consumes design tokens from coruls-tokens.css */

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

/* ── Base ─────────────────────────────────── */
body {
    font-family: var(--coruls-font-sans);
    background: var(--coruls-background);
    color: var(--coruls-foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-feature-settings: 'rlig' 1, 'calt' 1;
    transition: background-color 0.2s ease, color 0.2s ease;
}

a { color: var(--coruls-violet-500); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--coruls-violet-600); }
.dark a { color: var(--coruls-violet-400); }
.dark a:hover { color: var(--coruls-violet-500); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Focus Accessibility ──────────────────── */
:focus-visible {
    outline: 2px solid var(--coruls-violet-500);
    outline-offset: 2px;
    border-radius: var(--coruls-radius-sm);
}

/* ── Nav ──────────────────────────────────── */
nav {
    border-bottom: 1px solid var(--coruls-border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    background: color-mix(in srgb, var(--coruls-background) 90%, transparent);
    backdrop-filter: blur(12px);
    z-index: 50;
    transition: background-color 0.2s ease;
}
nav .container { display: flex; align-items: center; justify-content: space-between; }
nav .logo { font-size: 1.25rem; font-weight: 700; color: var(--coruls-foreground); display: flex; align-items: center; gap: 8px; }
nav .logo span { color: var(--coruls-violet-500); }
.dark nav .logo span { color: var(--coruls-violet-400); }
nav .nav-links { display: flex; gap: 20px; align-items: center; }
nav .nav-links a { color: var(--coruls-muted-foreground); font-size: 0.9rem; }
nav .nav-links a:hover { color: var(--coruls-foreground); text-decoration: none; }

/* ── Theme Toggle ─────────────────────────── */
.theme-toggle {
    background: none;
    border: 1px solid var(--coruls-border);
    border-radius: var(--coruls-radius);
    padding: 8px;
    cursor: pointer;
    color: var(--coruls-muted-foreground);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    width: 36px;
    height: 36px;
}
.theme-toggle:hover { background: var(--coruls-secondary); color: var(--coruls-foreground); }
.theme-toggle svg { width: 18px; height: 18px; }
.dark .theme-toggle .icon-sun { display: block; }
.dark .theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }

/* ── Hero ─────────────────────────────────── */
.hero {
    text-align: center;
    padding: 100px 0 80px;
}
.hero h1 {
    font-size: 3.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    line-height: 1.1;
}
.hero h1 span {
    background: linear-gradient(135deg, var(--coruls-violet-500), var(--coruls-teal-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero p {
    font-size: 1.2rem;
    color: var(--coruls-muted-foreground);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

/* ── Products Section ─────────────────────── */
.section { padding: 80px 0; }
.section-title {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.section-subtitle {
    text-align: center;
    color: var(--coruls-muted-foreground);
    margin-bottom: 48px;
    font-size: 1.05rem;
}

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

.product-card {
    background: var(--coruls-card);
    border: 1px solid var(--coruls-border);
    border-radius: var(--coruls-radius-lg);
    padding: 32px;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}
.product-card:hover {
    border-color: var(--coruls-muted-foreground);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px -5px rgba(0, 0, 0, 0.1);
}
.dark .product-card:hover {
    box-shadow: 0 8px 25px -5px rgba(0, 0, 0, 0.3);
}

.product-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--coruls-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}
.product-icon svg { width: 24px; height: 24px; }
.product-icon.teal  { background: rgba(20, 184, 166, 0.12); color: var(--coruls-teal-500); }
.product-icon.blue  { background: rgba(59, 130, 246, 0.12); color: var(--coruls-blue-500); }
.dark .product-icon.teal  { background: rgba(45, 212, 191, 0.15); color: var(--coruls-teal-400); }
.dark .product-icon.blue  { background: rgba(96, 165, 250, 0.15); color: var(--coruls-blue-400); }

.product-card h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 8px; }
.product-card p { color: var(--coruls-muted-foreground); font-size: 0.95rem; flex: 1; margin-bottom: 20px; }

.product-features { list-style: none; margin-bottom: 24px; }
.product-features li {
    padding: 4px 0;
    font-size: 0.9rem;
    color: var(--coruls-muted-foreground);
    display: flex;
    align-items: center;
    gap: 8px;
}
.product-features li svg { width: 16px; height: 16px; color: var(--coruls-success); flex-shrink: 0; }

/* ── Buttons ──────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--coruls-radius);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--coruls-font-sans);
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
    text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn:focus-visible { outline: 2px solid var(--coruls-violet-500); outline-offset: 2px; }

.btn--primary {
    background: var(--coruls-violet-500);
    color: #fff;
}
.btn--primary:hover { background: var(--coruls-violet-600); }

.btn--secondary {
    background: var(--coruls-secondary);
    color: var(--coruls-foreground);
    border: 1px solid var(--coruls-border);
}
.btn--secondary:hover { background: var(--coruls-border); }

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

.btn--ghost {
    background: transparent;
    color: var(--coruls-muted-foreground);
}
.btn--ghost:hover { background: var(--coruls-secondary); color: var(--coruls-foreground); }

/* ── Badge ────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.025em;
}
.badge--teal  { background: rgba(20, 184, 166, 0.12); color: var(--coruls-teal-500); }
.badge--blue  { background: rgba(59, 130, 246, 0.12); color: var(--coruls-blue-500); }
.badge--violet { background: rgba(139, 92, 246, 0.12); color: var(--coruls-violet-500); }
.dark .badge--teal  { background: rgba(45, 212, 191, 0.15); color: var(--coruls-teal-400); }
.dark .badge--blue  { background: rgba(96, 165, 250, 0.15); color: var(--coruls-blue-400); }
.dark .badge--violet { background: rgba(167, 139, 250, 0.15); color: var(--coruls-violet-400); }

/* ── Tech Stack ───────────────────────────── */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: auto;
}
.tech-tag {
    padding: 3px 10px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--coruls-secondary);
    color: var(--coruls-muted-foreground);
    border: 1px solid var(--coruls-border);
}

/* ── Footer ───────────────────────────────── */
footer {
    border-top: 1px solid var(--coruls-border);
    padding: 40px 0;
    text-align: center;
    color: var(--coruls-muted-foreground);
    font-size: 0.85rem;
}
footer a { color: var(--coruls-muted-foreground); }
footer a:hover { color: var(--coruls-foreground); }

/* ── Animations ───────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}
.animate-fade-in { animation: fadeInUp 0.4s ease-out; }
.animate-fade-in-delay { animation: fadeInUp 0.4s ease-out 0.1s both; }
.animate-fade-in-delay-2 { animation: fadeInUp 0.4s ease-out 0.2s both; }

/* ── Responsive ───────────────────────────── */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .hero p { font-size: 1rem; }
    .hero { padding: 60px 0 50px; }
    .section { padding: 50px 0; }
    .products-grid { grid-template-columns: 1fr; }
    nav .nav-links { gap: 12px; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 1.8rem; }
    .container { padding: 0 16px; }
}