/* site.css — Shared styles for preneurial.works
   Extracted from per-page <style> blocks. Page-specific CSS remains inline. */

/* === Variables === */
:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #141925;
    --bg-tertiary: #1a1d2e;
    --color-accent: #00bcd4;
    --color-accent-secondary: #2563eb;
    --text-bright: #f8fafc;
    --text-medium: #cbd5e1;
    --text-dim: #94a3b8;
    --text-dimmer: #64748b;
    --border-dark: #1e293b;
    --border-subtle: #2d3148;
    --color-accent-hover: #00d4ef;
    --color-secondary-hover: #3b7cf5;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-pill: 999px;
}

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

/* === Body === */
body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-primary);
    color: var(--text-medium);
    line-height: 1.6;
    font-size: 1rem;
}

/* === Navigation === */
.site-nav {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.9rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-brand {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-bright);
    text-decoration: none;
}
.nav-brand i { color: var(--color-accent); }
.nav-links {
    display: flex;
    gap: 1.8rem;
    align-items: center;
}
.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
    letter-spacing: 0.01em;
}
.nav-links a:hover { color: var(--color-accent); }
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-bright);
    font-size: 1.4rem;
    cursor: pointer;
}

/* === Container === */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

/* === Buttons === */
button {
    border-radius: var(--radius-pill);
    border: none;
    padding: 0.55rem 1.2rem;
    cursor: pointer;
    font-weight: 600;
    letter-spacing: 0.02em;
    font-size: 1rem;
    transition: all 0.2s;
}
.btn-primary { background: var(--color-accent-secondary); color: var(--text-bright); }
.btn-primary:hover { background: var(--color-secondary-hover); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--text-dim); border: 1px solid var(--border-subtle); }
.btn-outline:hover { color: var(--text-bright); border-color: var(--text-dim); }
.cta-text-link { color: var(--color-accent); text-decoration: none; font-weight: 500; font-size: 0.9rem; }
.cta-text-link:hover { text-decoration: underline; }

/* === Footer === */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    color: var(--text-dim);
    padding: 2rem 0;
    text-align: center;
    margin-top: 3rem;
}
.footer p { font-size: 0.9rem; }
.footer a { color: var(--color-accent); text-decoration: none; }
.footer a:hover { color: var(--text-bright); }
.footer .back-link { display: inline-block; font-weight: 600; }
.footer .back-link:hover { text-decoration: underline; }

/* === Mobile Responsive Nav === */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-primary);
        border-bottom: 1px solid var(--border-subtle);
        padding: 1rem 2rem;
        gap: 1rem;
    }
    .nav-toggle { display: block; }
    .site-nav { position: relative; }
}