/* ===== Variables globales (mismo estilo que el sitio) ===== */
:root {
    --bg-body: #0b132b;
    --bg-card: #1c2541;
    --text-primary: #ffffff;
    --text-secondary: #9aa8c3;
    --border-light: rgba(255, 255, 255, 0.08);
    --shadow-card: 0 20px 40px -12px rgba(0, 0, 0, 0.5);
    --radius-card: 24px;
    --radius-btn: 40px;
    --brand-gold: #f5a623;
    --blue-accent: #3a86ff;
    --green-accent: #10b981;
    --red-accent: #ef4444;
    --font: "DM Sans", sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: var(--font);
    background: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 24px 20px;
}
.container {
    max-width: 1400px;
    margin: 0 auto;
}

.header {
    margin-bottom: 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}
.header-left h1 {
    font-family: "Playfair Display", serif;
    font-size: 2.2rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 12px;
}
.header-left h1 i {
    color: var(--brand-gold);
}
.header-left p {
    color: var(--text-secondary);
    font-size: 0.98rem;
    margin-top: 4px;
}
.header a {
    color: var(--blue-accent);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
}
.header a:hover {
    color: var(--brand-gold);
}

.main-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
}
@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 1fr;
    }
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius-card);
    padding: 24px;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
}
.card h2 {
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 12px;
}

/* ===== FORMULARIOS ===== */
.form-group {
    margin-bottom: 14px;
}
.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 4px;
    color: var(--text-secondary);
}
.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-primary);
    font-family: var(--font);
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--blue-accent);
}
.form-group .help-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-btn);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--blue-accent);
    color: white;
}
.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(58, 134, 255, 0.4);
}
.btn-success {
    background: var(--brand-gold);
    color: #0b132b;
}
.btn-success:hover {
    background: #d98e19;
}
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===== RESULTADOS ===== */
#resultadosContainer {
    margin-top: 16px;
}
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}
.stat-card {
    background: rgba(255, 255, 255, 0.03);
    padding: 12px;
    border-radius: 12px;
    text-align: center;
}
.stat-card .value {
    font-size: 1.4rem;
    font-weight: 700;
}
.stat-card .label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}
.stat-card .value.green {
    color: var(--green-accent);
}
.stat-card .value.red {
    color: var(--red-accent);
}
.stat-card .value.gold {
    color: var(--brand-gold);
}

.alert-list {
    list-style: none;
    padding: 0;
    margin: 8px 0;
}
.alert-list li {
    padding: 8px 12px;
    border-radius: 8px;
    margin-bottom: 4px;
    background: rgba(239, 68, 68, 0.1);
    border-left: 3px solid var(--red-accent);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

#graficoContainer {
    margin-top: 16px;
}

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 0.6s linear infinite;
}
/* ============================================================
   SECCIÓN FAQ - ESTILOS (para Simulador de Tráfico)
   ============================================================ */
.faq-section {
    margin-top: 48px;
    padding: 32px 0;
    border-top: 1px solid var(--border-light);
}

.faq-title {
    font-family: "Playfair Display", serif;
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    color: var(--text-primary);
}
.faq-title .material-icons {
    color: var(--brand-gold);
    font-size: 2rem;
}

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

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.2s;
}
.faq-item:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    list-style: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
    transition: background 0.2s;
}
.faq-question::-webkit-details-marker {
    display: none;
}
.faq-question:hover {
    background: rgba(255, 255, 255, 0.03);
}

.faq-question .material-icons {
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}
.faq-item[open] .faq-question .material-icons {
    transform: rotate(180deg);
}

.faq-question-text {
    flex: 1;
}

.faq-answer {
    padding: 4px 20px 20px 52px;
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}
.faq-answer p {
    margin-bottom: 8px;
}
.faq-answer ul,
.faq-answer ol {
    margin: 8px 0 8px 20px;
}
.faq-answer li {
    margin-bottom: 4px;
}
.faq-answer strong {
    color: var(--text-primary);
}
.faq-answer a {
    color: var(--brand-gold);
    text-decoration: none;
    font-weight: 600;
}
.faq-answer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 640px) {
    .faq-title {
        font-size: 1.4rem;
    }
    .faq-question {
        font-size: 0.9rem;
        padding: 12px 16px;
    }
    .faq-answer {
        padding: 4px 16px 16px 44px;
        font-size: 0.85rem;
    }
}
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}