/* ============================
   Observatorio de Seguridad Vial
   ANASEVI — Estilos principales
   Paleta: colores ODS + neutros
   ============================ */

:root {
    /* ODS Colors */
    --ods-1: #E5243B;  /* Fin pobreza */
    --ods-3: #4C9F38;  /* Salud */
    --ods-5: #FF3A21;  /* Igualdad género */
    --ods-11: #FD9D24; /* Ciudades */
    --ods-16: #00689D;  /* Paz y justicia */
    --ods-17: #19486A;  /* Alianzas */
    
    /* UI Colors */
    --primary: #00689D;    /* ODS 16 azul — color principal */
    --primary-dark: #19486A;
    --accent: #E5243B;     /* ODS 1 rojo — alertas y CTAs */
    --success: #4C9F38;    /* ODS 3 verde */
    --bg: #FAFBFC;
    --bg-dark: #1a1a2e;
    --text: #2d2d3a;
    --text-light: #6b7280;
    --white: #ffffff;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --radius: 12px;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* HEADER */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    z-index: 100;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav__logo-icon { font-size: 28px; }
.nav__logo-title { font-weight: 700; font-size: 16px; color: var(--primary-dark); }
.nav__logo-sub { font-size: 11px; color: var(--text-light); letter-spacing: 0.5px; }

.nav__links {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
}

.nav__links a {
    text-decoration: none;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav__links a:hover { color: var(--primary); }

.nav__toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; }

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    background: var(--primary);
    color: white;
}

.btn:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn--small { padding: 8px 20px; font-size: 13px; }
.btn--large { padding: 16px 36px; font-size: 16px; }
.btn--white { background: white; color: var(--primary-dark); }
.btn--white:hover { background: #f0f0f0; }
.btn--accent { background: var(--accent); }
.btn--accent:hover { background: #c91e30; }

/* HERO */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--ods-17) 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.hero__ods-wheel {
    width: 100px;
    height: 100px;
    margin-bottom: 24px;
    animation: spin 60s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.hero__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    max-width: 700px;
    margin: 0 auto 32px;
    opacity: 0.9;
    line-height: 1.6;
}

/* ODS BADGES */
.hero__badges {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.ods-badge {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 18px;
    color: white;
    cursor: help;
    transition: transform 0.2s;
}

.ods-badge:hover { transform: scale(1.15); }
.ods-1 { background: var(--ods-1); }
.ods-3 { background: var(--ods-3); }
.ods-5 { background: var(--ods-5); }
.ods-11 { background: var(--ods-11); }
.ods-16 { background: var(--ods-16); }
.ods-17 { background: var(--ods-17); }

/* COUNTERS */
.counters {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.counter {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
}

.counter__icon { font-size: 36px; margin-bottom: 8px; }

.counter__number {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: 8px;
}

.counter--countdown .counter__number { color: #FFD93D; }
.counter--deaths .counter__number { color: #FF6B6B; }

.counter__label { font-size: 14px; opacity: 0.9; margin-bottom: 4px; }
.counter__sub { font-size: 12px; opacity: 0.6; }

/* SECTIONS */
.section {
    padding: 80px 0;
}

.section--dark {
    background: var(--bg-dark);
    color: white;
}

.section--light {
    background: #f0f4f8;
}

.section--cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--ods-17) 100%);
    text-align: center;
}

.section__header {
    text-align: center;
    margin-bottom: 48px;
}

.section__tag {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    background: rgba(0,104,157,0.1);
    color: var(--primary);
    margin-bottom: 12px;
}

.section--dark .section__tag {
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.8);
}

.section__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 12px;
}

.section__desc {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.8;
}

/* STATS GRID */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.stat-card {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
}

.stat-card--alert {
    background: rgba(229,36,59,0.2);
    border-color: rgba(229,36,59,0.3);
}

.stat-card__number {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 4px;
}

.stat-card--alert .stat-card__number { color: #FF6B6B; }
.stat-card__label { font-size: 13px; opacity: 0.7; }

/* CHARTS */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 48px;
}

.chart-container {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 24px;
}

.chart-container--wide {
    grid-column: 1 / -1;
}

.chart-container h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    opacity: 0.8;
}

/* CTA BOX */
.cta-box {
    background: linear-gradient(135deg, var(--accent), #c91e30);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
}

.cta-box h3 { font-size: 1.5rem; margin-bottom: 12px; }
.cta-box p { opacity: 0.9; margin-bottom: 20px; }

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

.report-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    position: relative;
}

.report-card__badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--accent);
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
}

.report-card h3 { font-size: 1.25rem; margin-bottom: 12px; }
.report-card p { color: var(--text-light); font-size: 14px; margin-bottom: 16px; }
.report-card__meta { font-size: 12px; color: var(--text-light); margin-bottom: 16px; }

/* SUBSCRIBE */
.subscribe-form {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    max-width: 400px;
    margin: 0 auto;
}

.subscribe-form__input {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 8px;
    background: rgba(255,255,255,0.1);
    color: white;
    font-size: 15px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

.subscribe-form__input::placeholder { color: rgba(255,255,255,0.6); }
.subscribe-form__input:focus { border-color: rgba(255,255,255,0.7); }

.subscribe-note {
    margin-top: 16px;
    font-size: 12px;
    color: rgba(255,255,255,0.6);
}

/* ABOUT */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-grid h2 { margin-bottom: 16px; }
.about-grid p { margin-bottom: 12px; color: var(--text-light); }

.ods-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.ods-card {
    padding: 16px;
    border-radius: 8px;
    color: white;
    font-size: 13px;
    line-height: 1.4;
}

.ods-card small { opacity: 0.8; }

/* FOOTER */
.footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.6);
    padding: 32px 0;
    text-align: center;
    font-size: 13px;
}

.footer__content p { margin-bottom: 4px; }

/* DASHBOARD PREVIEW */
.dashboard-preview {
    background: white;
    border-radius: var(--radius);
    padding: 60px 40px;
    text-align: center;
    box-shadow: var(--shadow);
}

.dashboard-preview__coming {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav__links { display: none; }
    .nav__toggle { display: block; }
    .counters { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .charts-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .hero { padding: 120px 0 60px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
}