/* Quitar flechas en Chrome, Safari, Edge */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

    /* ===== SISTEMA DE DISEÑO MODERNO NAVY + GOLD ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    
    :root {
        --radius: 0.875rem;
        --background: oklch(0.99 0.005 90);
        --foreground: oklch(0.18 0.04 260);
        --card: oklch(1 0 0);
        --card-foreground: oklch(0.18 0.04 260);
        --navy: oklch(0.22 0.06 265);
        --navy-deep: oklch(0.14 0.05 265);
        --primary: oklch(0.22 0.06 265);
        --primary-foreground: oklch(0.98 0.005 90);
        --gold: oklch(0.82 0.16 85);
        --gold-foreground: oklch(0.18 0.04 260);
        --muted: oklch(0.96 0.01 250);
        --muted-foreground: oklch(0.45 0.03 260);
        --accent: oklch(0.82 0.16 85);
        --border: oklch(0.9 0.012 260);
        --input: oklch(0.9 0.012 260);
        --ring: oklch(0.82 0.16 85);
        --gradient-hero: linear-gradient(135deg, oklch(0.14 0.05 265) 0%, oklch(0.22 0.06 265) 55%, oklch(0.32 0.09 270) 100%);
        --gradient-gold: linear-gradient(135deg, oklch(0.88 0.14 88) 0%, oklch(0.78 0.17 75) 100%);
        --shadow-elegant: 0 25px 60px -25px color-mix(in oklab, var(--navy-deep) 45%, transparent);
        --shadow-gold: 0 20px 50px -20px color-mix(in oklab, var(--gold) 55%, transparent);
        --shadow-card: 0 10px 30px -15px color-mix(in oklab, var(--navy-deep) 25%, transparent);
        --font-display: 'Space Grotesk', system-ui, sans-serif;
        --font-sans: 'Inter', system-ui, sans-serif;
        
        /* Colores específicos */
        --color-accent: #f59e0b;
        --color-text-light: #94a3b8;
    }
    
    body {
        background-color: var(--background);
        color: var(--foreground);
        font-family: var(--font-sans);
        -webkit-font-smoothing: antialiased;
        padding-top: 72px;
    }
    
    h1, h2, h3, h4 { font-family: var(--font-display); letter-spacing: -0.02em; }
    
    
    /* ===== HERO ===== */
    .page-hero {
        background: var(--gradient-hero);
        padding: 2rem 0;
        text-align: center;
        margin-bottom: 2rem;
    }
    .hero-icon {
        display: inline-block;
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }
    .page-hero h2 {
        font-size: 1.75rem;
        color: white;
        margin-bottom: 0.5rem;
    }
    .page-hero p {
        color: rgba(255,255,255,0.8);
        max-width: 600px;
        margin: 0 auto;
        font-size: 0.875rem;
    }
    
    /* ===== CONTENEDOR PRINCIPAL ===== */
    .sim-wrapper {
        max-width: 1400px;
        margin: 0 auto;
        padding: 0 1.5rem 2rem;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    @media (max-width: 1024px) {
        .sim-wrapper { grid-template-columns: 1fr; }
    }
    
    /* ===== TARJETA FORMULARIO ===== */
    .sim-form-card {
        background: var(--card);
        border: 1px solid var(--border);
        border-radius: 1rem;
        padding: 1.5rem;
        box-shadow: var(--shadow-card);
    }
    .sim-form-card h3 {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 1.25rem;
        margin-bottom: 1.25rem;
        padding-bottom: 0.75rem;
        border-bottom: 2px solid var(--gold);
    }
    .sim-form-card h3 i { color: var(--gold); }
    
    .field {
        margin-bottom: 1.25rem;
    }
    .field label {
        display: block;
        font-size: 0.75rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: var(--muted-foreground);
    }
    .field input, .field select {
        width: 100%;
        padding: 0.7rem 1rem;
        border: 1px solid var(--border);
        border-radius: 0.75rem;
        font-size: 0.875rem;
        font-family: var(--font-sans);
        background: var(--background);
        transition: all 0.2s;
    }
    .field input:focus, .field select:focus {
        outline: none;
        border-color: var(--gold);
        box-shadow: 0 0 0 3px rgba(210,158,0,0.1);
    }
    .optional {
        font-size: 0.65rem;
        font-weight: normal;
        color: var(--muted-foreground);
    }
    
    .factor-badge {
        background: var(--muted);
        padding: 0.5rem 1rem;
        border-radius: 0.75rem;
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 0.8rem;
    }
    .factor-badge i { color: var(--gold); }
    
    .btn-desglose {
        background: var(--muted);
        border: 1px solid var(--border);
        padding: 0.5rem 1rem;
        border-radius: 0.75rem;
        font-size: 0.7rem;
        cursor: pointer;
        margin-top: 0.5rem;
        width: 100%;
        transition: all 0.2s;
    }
    .btn-desglose:hover {
        background: var(--gold);
        color: var(--navy);
        border-color: var(--gold);
    }
    
    .desglose-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
        margin-bottom: 1rem;
    }
    
    .slider-field {
        margin-top: 0.5rem;
    }
    .slider-field input[type="range"] {
        width: 100%;
        margin: 0.5rem 0;
    }
    
    .efic-combinada-preview {
        background: var(--muted);
        padding: 0.5rem;
        border-radius: 0.5rem;
        font-size: 0.7rem;
        margin-top: 0.5rem;
    }
    
    .btn-calcular {
        background: var(--gradient-gold);
        color: var(--navy);
        border: none;
        padding: 0.85rem 1rem;
        border-radius: 9999px;
        font-weight: 600;
        font-size: 0.875rem;
        cursor: pointer;
        transition: all 0.2s;
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
        margin-top: 1rem;
    }
    .btn-calcular:hover {
        transform: translateY(-2px);
        filter: brightness(1.05);
    }
    
    /* ===== TARJETA RESULTADOS ===== */
    .sim-results-card {
        background: var(--card);
        border: 1px solid var(--border);
        border-radius: 1rem;
        padding: 1.5rem;
        box-shadow: var(--shadow-card);
    }
    
    .result-placeholder {
        text-align: center;
        padding: 3rem 1rem;
        color: var(--muted-foreground);
    }
    .result-placeholder i { font-size: 3rem; color: var(--gold); margin-bottom: 1rem; display: inline-block; }
    
    .result-card {
        display: none;
    }
    .result-card.visible {
        display: block;
    }
    .result-card h3 {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 1.25rem;
        margin-bottom: 1.25rem;
        padding-bottom: 0.75rem;
        border-bottom: 2px solid var(--gold);
    }
    
    .kpi-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 1rem;
        margin-bottom: 1.5rem;
    }
    .kpi-item {
        background: var(--muted);
        border-radius: 0.75rem;
        padding: 1rem;
        text-align: center;
    }
    .kpi-item.highlight {
        background: var(--gradient-gold);
        color: var(--navy);
    }
    .kpi-value {
        font-size: 1.25rem;
        font-weight: 700;
        font-family: var(--font-display);
    }
    .kpi-label {
        font-size: 0.65rem;
        font-weight: 600;
        text-transform: uppercase;
        margin-top: 0.25rem;
    }
    
    .interpretacion-row, .desviacion-row {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        padding: 0.75rem;
        background: var(--muted);
        border-radius: 0.75rem;
        margin-bottom: 0.75rem;
        font-size: 0.75rem;
    }
    
    .badge {
        display: inline-block;
        padding: 0.25rem 0.5rem;
        border-radius: 9999px;
        font-size: 0.7rem;
        font-weight: 600;
    }
    .badge.positivo { background: rgba(16,185,129,0.15); color: #10b981; }
    .badge.negativo { background: rgba(239,68,68,0.15); color: #ef4444; }
    .badge.neutro { background: rgba(245,158,11,0.15); color: #f59e0b; }
    
    /* ===== TABLA FACTORES ===== */
    .factors-card {
        margin-top: 1.5rem;
    }
    .factors-card h3 {
        font-size: 1rem;
        margin-bottom: 1rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    .factors-table {
        width: 100%;
        border-collapse: collapse;
        font-size: 0.7rem;
    }
    .factors-table th, .factors-table td {
        padding: 0.5rem;
        text-align: left;
        border-bottom: 1px solid var(--border);
    }
    .factors-table th {
        color: var(--gold);
        font-weight: 600;
    }
    .fuel-dot {
        display: inline-block;
        width: 10px;
        height: 10px;
        border-radius: 50%;
        margin-right: 0.5rem;
    }
    .td-blank { color: var(--muted-foreground); }
    
    /* ===== WHATSAPP FLOTANTE ===== */
    .whatsapp-float {
        position: fixed;
        bottom: 1.5rem;
        right: 1.5rem;
        background: #25D366;
        color: white;
        width: 3.5rem;
        height: 3.5rem;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 9999px;
        font-size: 1.75rem;
        box-shadow: 0 10px 25px -5px rgba(0,0,0,0.2);
        transition: transform 0.2s;
        z-index: 40;
        text-decoration: none;
    }
    .whatsapp-float:hover { transform: scale(1.1); }
    
    .btn-back-floating {
        position: fixed;
        bottom: 1.5rem;
        left: 1.5rem;
        background: var(--navy);
        color: white;
        width: 3rem;
        height: 3rem;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 9999px;
        font-size: 1.25rem;
        box-shadow: var(--shadow-card);
        transition: all 0.2s;
        z-index: 40;
        text-decoration: none;
    }
    .btn-back-floating:hover { transform: scale(1.1); background: var(--gold); color: var(--navy); }
    
    @media (max-width: 768px) {
        .desglose-grid { grid-template-columns: 1fr; }
        .kpi-grid { grid-template-columns: 1fr; }
        .factors-table { font-size: 0.65rem; }
    }