/* ============================================
   Chilitomate — Estilos Compartidos
   Variables, Reset, Nav, Footer, Responsive
   ============================================ */

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

/* --- Tema Oscuro --- */
:root[data-theme="dark"] {
    --bg: #09090b;
    --bg-alt: #121214;
    --card: #18181b;
    --text: #fafafa;
    --text-muted: #a1a1aa;
    --border: rgba(255, 255, 255, 0.08);
    --hover: #27272a;
    --accent: #f43f5e;
    --chili-gradient: linear-gradient(135deg, #f43f5e 0%, #fb923c 100%);
    --glass: rgba(9, 9, 11, 0.85);
    --shadow-sm: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-glow: 0 10px 40px -10px rgba(244, 63, 94, 0.2);
}

/* --- Tema Claro --- */
:root[data-theme="light"] {
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --card: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: rgba(0, 0, 0, 0.06);
    --hover: #f1f5f9;
    --accent: #e11d48;
    --chili-gradient: linear-gradient(135deg, #e11d48 0%, #ea580c 100%);
    --glass: rgba(255, 255, 255, 0.85);
    --shadow-sm: 0 4px 20px rgba(0,0,0,0.04);
    --shadow-glow: 0 10px 40px -10px rgba(225, 29, 72, 0.15);
}

/* --- Base --- */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    transition: background 0.3s, color 0.3s;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

/* --- Navegación Glassmorphism --- */
.nav-wrapper { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid var(--border); background: var(--glass); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); }
.nav-content { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; max-width: 1400px; margin: 0 auto; width: 100%; }
.logo { font-weight: 800; font-size: 1.3rem; letter-spacing: -0.03em; display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; }
.logo-icon { background: var(--chili-gradient); color: white; padding: 6px; border-radius: 10px; display: flex; }

.nav-controls { display: flex; align-items: center; gap: 12px; }
.toggle-group { display: flex; align-items: center; gap: 4px; background: var(--card); padding: 4px; border-radius: 14px; border: 1px solid var(--border); }
.toggle-btn { padding: 6px 12px; border-radius: 10px; font-size: 0.85rem; font-weight: 600; text-decoration: none; color: var(--text-muted); transition: all 0.2s; border: none; background: transparent; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; }
.toggle-btn:hover { color: var(--text); }
.toggle-btn.active { background: var(--bg-alt); color: var(--text); box-shadow: 0 2px 8px rgba(0,0,0,0.05); border: 1px solid var(--border); }
.toggle-btn svg { width: 16px; height: 16px; stroke-width: 2.5; }

/* --- Footer --- */
.footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding: 5rem 0 2rem 0; margin-top: 4rem; width: 100%; }
.footer-container { max-width: 1400px; margin: 0 auto; width: 100%; padding: 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-col { display: flex; flex-direction: column; gap: 1rem; align-items: flex-start; }

.footer-brand-title { display: flex; align-items: center; gap: 8px; font-weight: 800; font-size: 1.3rem; margin-bottom: 0.5rem; color: var(--text); letter-spacing: -0.02em; }
.footer-desc { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; margin: 0 0 1rem 0; max-width: 320px; }
.footer-title { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text); margin-bottom: 0.5rem; }
.footer-link { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; font-weight: 500; display: inline-block; width: fit-content; transition: color 0.2s, transform 0.2s; }
.footer-link:hover { color: var(--accent); transform: translateX(4px); }

.trust-section { margin-top: 1rem; width: 100%; }
.trust-title { display: flex; align-items: center; gap: 6px; font-size: 0.85rem; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.trust-title svg { color: #10b981; }
.trust-badges-container { display: flex; gap: 10px; flex-wrap: wrap; }
.trust-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 0.75rem; font-weight: 600; color: var(--text-muted); background: var(--card); padding: 6px 12px; border-radius: 12px; border: 1px solid var(--border); }

.social-links { display: flex; gap: 10px; }
.social-btn { background: var(--card); border: 1px solid var(--border); color: var(--text-muted); width: 40px; height: 40px; border-radius: 12px; display: flex; justify-content: center; align-items: center; transition: all 0.3s; }
.social-btn:hover { background: var(--chili-gradient); border-color: transparent; color: white; transform: translateY(-3px); box-shadow: 0 4px 12px rgba(225, 29, 72, 0.3); }

.footer-bottom { padding-top: 2rem; border-top: 1px solid var(--border); display: flex; flex-direction: column; align-items: center; text-align: center; gap: 1rem; }
.footer-disclaimer { max-width: 700px; color: var(--text-muted); font-size: 0.8rem; line-height: 1.6; }
.footer-copyright { font-size: 0.85rem; font-weight: 600; color: var(--text); }

/* --- Responsive Compartido --- */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 2.5rem; }
}
@media (max-width: 640px) {
    .nav-content { padding: 1rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
}