/* Reset y variables CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #8B4513;
    --secondary-color: #DAA520;
    --accent-color: #CD853F;
    --text-color: #2C1810;
    --bg-color: #FFF8DC;
    --card-bg: #FFFFFF;
    --border-color: #D2B48C;
    --success-color: #228B22;
    --danger-color: #DC143C;
    --warning-color: #FF8C00;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Tipografía */
body {
    font-family: 'Open Sans', sans-serif;
    background: linear-gradient(135deg, var(--bg-color) 0%, #F5E6D3 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

h1, h2, h3 {
    font-family: 'Cinzel', serif;
    font-weight: 600;
}

/* Contenedor principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 20px 0;
    text-align: center;
    box-shadow: var(--shadow);
    margin: 0 -20px 20px -20px;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 10px;
}

.logo-icon {
    font-size: 2.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-style: italic;
}

/* Navegación por pestañas */
.tab-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 20px;
    background: var(--card-bg);
    padding: 10px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow-x: auto;
}

.tab-btn {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 12px 16px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    white-space: nowrap;
    flex: 1;
    min-width: 100px;
}

.tab-btn:hover {
    background: var(--secondary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: var(--shadow);
}

/* Contenido principal */
.main-content {
    flex: 1;
    margin-bottom: 20px;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.card h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--primary-color);
    text-align: center;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

/* Formularios */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(218, 165, 32, 0.1);
}

.form-control:hover {
    border-color: var(--accent-color);
}

/* Botones */
.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    margin-top: 20px;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 1.2rem;
}

/* Resultados */
.result-box {
    margin-top: 25px;
    padding: 20px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--secondary-color);
    background: linear-gradient(135deg, #F0F8FF 0%, #E6F3FF 100%);
    box-shadow: var(--shadow);
}

.result-box.success {
    border-left-color: var(--success-color);
    background: linear-gradient(135deg, #F0FFF0 0%, #E6FFE6 100%);
}

.result-box.warning {
    border-left-color: var(--warning-color);
    background: linear-gradient(135deg, #FFF8DC 0%, #FFEBCD 100%);
}

.result-box.danger {
    border-left-color: var(--danger-color);
    background: linear-gradient(135deg, #FFF0F0 0%, #FFE6E6 100%);
}

.result-box h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.result-box p {
    margin-bottom: 10px;
}

.result-box strong {
    color: var(--primary-color);
}

/* Campos de dados manuales */
.dados-manual {
    background: linear-gradient(135deg, #F0F8FF 0%, #E6F3FF 100%);
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin: 20px 0;
}

.dados-manual h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    text-align: center;
}

.dados-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.dado-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dado-group label {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.dados-inputs {
    display: flex;
    gap: 10px;
}

.dados-inputs input {
    flex: 1;
    padding: 8px 12px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: bold;
    font-size: 1.1rem;
    transition: var(--transition);
}

.dados-inputs input:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(218, 165, 32, 0.1);
}

.dados-inputs input:valid {
    border-color: var(--success-color);
}

.dados-inputs input:invalid:not(:placeholder-shown) {
    border-color: var(--danger-color);
}

/* Checkbox personalizado */
input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    accent-color: var(--secondary-color);
}

/* Campos ocultos */
.hidden {
    display: none !important;
}

.curva-fields.hidden,
.latigo-fields.hidden,
.carro-fields.hidden,
.dados-manual.hidden {
    display: none;
}

@media (min-width: 768px) {
    .dados-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .latigo-auriga-dados {
        grid-column: 1 / -1;
    }
}

/* Indicadores de dados y fórmulas */
.dice-indicator {
    background: linear-gradient(135deg, #FFF8DC 0%, #F5E6A3 100%);
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius);
    padding: 15px;
    margin: 15px 0 25px 0;
    text-align: center;
}

.dice-count {
    display: block;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.dice-description {
    display: block;
    font-size: 0.95rem;
    color: #666;
    margin-bottom: 10px;
}

.formula {
    background: rgba(255, 255, 255, 0.7);
    border-radius: 6px;
    padding: 10px;
    margin-top: 10px;
    text-align: left;
    font-size: 0.9rem;
    line-height: 1.4;
}

.formula strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.formula small {
    color: #666;
    font-style: italic;
}

@media (max-width: 768px) {
    .dice-indicator {
        padding: 12px;
        margin: 12px 0 20px 0;
    }
    
    .dice-count {
        font-size: 1.1rem;
    }
    
    .dice-description {
        font-size: 0.9rem;
    }
    
    .formula {
        font-size: 0.85rem;
        padding: 8px;
    }
}

/* Animación de dados */
.dice-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.dice-animation {
    display: flex;
    gap: 20px;
}

.dice {
    width: 80px;
    height: 80px;
    background: white;
    border: 3px solid var(--primary-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    animation: rollDice 1s ease-in-out;
    box-shadow: var(--shadow-lg);
}

@keyframes rollDice {
    0% { transform: rotate(0deg) scale(1); }
    25% { transform: rotate(90deg) scale(1.2); }
    50% { transform: rotate(180deg) scale(1); }
    75% { transform: rotate(270deg) scale(1.2); }
    100% { transform: rotate(360deg) scale(1); }
}

/* Texto informativo */
.info-text {
    background: linear-gradient(135deg, #E6F3FF 0%, #CCE7FF 100%);
    padding: 15px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--secondary-color);
    margin-bottom: 20px;
    font-style: italic;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 20px;
    margin: 0 -20px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.footer p {
    margin-bottom: 5px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header {
        margin: 0 -15px 20px -15px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .tab-nav {
        flex-direction: column;
        gap: 8px;
    }
    
    .tab-btn {
        flex: none;
        min-width: auto;
    }
    
    .card {
        padding: 20px;
    }
    
    .card h2 {
        font-size: 1.5rem;
    }
    
    .dice {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .dice-animation {
        gap: 15px;
    }
    
    .footer {
        margin: 0 -15px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .card {
        padding: 15px;
    }
    
    .form-control {
        font-size: 16px; /* Evita zoom en iOS */
    }
    
    .btn-primary {
        padding: 12px 20px;
        font-size: 1rem;
    }
}

/* Mejoras de accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Modo oscuro (opcional) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --card-bg: #2d2d2d;
        --text-color: #e0e0e0;
        --border-color: #555;
    }
    
    .form-control {
        background: #333;
        color: #e0e0e0;
    }
}