/* ─── Variables globales ──────────────────────────────────────────── */
:root {
    --primary:       #2c3e50;
    --primary-dark:  #1a252f;
    --accent:        #c0392b;
    --accent-light:  #e74c3c;
    --bg:            #f5f0e8;
    --card:          #ffffff;
    --text:          #2d2d2d;
    --text-muted:    #6b7280;
    --border:        #d4c9b8;
    --border-light:  #ede8df;
    --nav-h:         64px;
    --radius:        10px;
    --shadow:        0 2px 12px rgba(0,0,0,0.08);
    --shadow-lg:     0 4px 24px rgba(0,0,0,0.12);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--accent-light); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── Navegación ──────────────────────────────────────────────────── */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--nav-h);
    background: var(--primary);
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
}

.nav-inner {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: -0.01em;
}
.nav-logo:hover { text-decoration: none; opacity: 0.9; }

.nav-logo-icon {
    font-size: 1.4rem;
    line-height: 1;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
}

.nav-links a {
    display: block;
    padding: 0.45rem 1rem;
    color: rgba(255,255,255,0.82);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 6px;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active {
    background: rgba(255,255,255,0.12);
    color: white;
    text-decoration: none;
}

.nav-links a.active {
    background: var(--accent);
    color: white;
}

/* ─── Hero/Page header ────────────────────────────────────────────── */
.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, #34495e 100%);
    color: white;
    padding: 3.5rem 2rem;
    text-align: center;
}

.page-hero h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    letter-spacing: -0.02em;
}

.page-hero p {
    font-size: 1.1rem;
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto;
}

/* ─── Contenedor principal ────────────────────────────────────────── */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2.5rem 2rem;
    flex: 1;
}

.container--narrow {
    max-width: 820px;
}

/* ─── Cards ───────────────────────────────────────────────────────── */
.card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

/* ─── Footer ──────────────────────────────────────────────────────── */
.site-footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border);
    background: white;
    margin-top: auto;
}

.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--accent); text-decoration: none; }

/* ─── Utilidades ──────────────────────────────────────────────────── */
.highlight {
    background: #fff3cd;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

/* ─── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 640px) {
    .nav-logo span { display: none; }
    .nav-inner { padding: 0 1rem; }
    .page-hero { padding: 2.5rem 1.25rem; }
    .page-hero h1 { font-size: 1.75rem; }
    .container { padding: 1.5rem 1.25rem; }
    .card { padding: 1.5rem; }
}