/* =================================================================
   SISTEMA DE BOTONES MODERNO PARA COQUICOOL
   ================================================================= */

/* Variables CSS para consistencia */
:root {
    --btn-primary-bg: #4CAF50;
    --btn-primary-hover: #45a049;
    --btn-primary-active: #3d8b40;
    --btn-secondary-bg: #3498db;
    --btn-secondary-hover: #2980b9;
    --btn-secondary-active: #2471a3;
    --btn-danger-bg: #e74c3c;
    --btn-danger-hover: #c0392b;
    --btn-danger-active: #a93226;
    --btn-warning-bg: #f39c12;
    --btn-warning-hover: #e67e22;
    --btn-warning-active: #d68910;
    --btn-info-bg: #17a2b8;
    --btn-info-hover: #138496;
    --btn-info-active: #117a8b;
    --btn-light-bg: #f8f9fa;
    --btn-light-hover: #e2e6ea;
    --btn-light-active: #dae0e5;
    --btn-dark-bg: #343a40;
    --btn-dark-hover: #23272b;
    --btn-dark-active: #1d2124;
    
    --btn-radius: 8px;
    --btn-radius-sm: 4px;
    --btn-radius-lg: 12px;
    --btn-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --btn-shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.15);
    --btn-transition: all 0.2s ease-in-out;
}

/* Base Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--btn-radius);
    background: none;
    cursor: pointer;
    transition: var(--btn-transition);
    box-shadow: var(--btn-shadow);
    position: relative;
    overflow: hidden;
    user-select: none;
    vertical-align: middle;
    white-space: nowrap;
    min-height: 44px; /* Accesibilidad - tamaño mínimo táctil */
}

.btn:focus {
    outline: none;
    box-shadow: var(--btn-shadow), 0 0 0 3px rgba(76, 175, 80, 0.25);
}

.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Tamaños de Botones */
.btn-sm {
    padding: 8px 16px;
    font-size: 12px;
    min-height: 36px;
    border-radius: var(--btn-radius-sm);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    min-height: 52px;
    border-radius: var(--btn-radius-lg);
}

.btn-xl {
    padding: 20px 40px;
    font-size: 18px;
    min-height: 60px;
    border-radius: var(--btn-radius-lg);
}

/* Botón de anchura completa */
.btn-block {
    width: 100%;
    display: flex;
}

/* Variantes de Color - Sólidos */
.btn-primary {
    background-color: var(--btn-primary-bg);
    color: white;
    border-color: var(--btn-primary-bg);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--btn-primary-hover);
    border-color: var(--btn-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
}

.btn-primary:active:not(:disabled) {
    background-color: var(--btn-primary-active);
    border-color: var(--btn-primary-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow);
}

.btn-secondary {
    background-color: var(--btn-secondary-bg);
    color: white;
    border-color: var(--btn-secondary-bg);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--btn-secondary-hover);
    border-color: var(--btn-secondary-hover);
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
}

.btn-secondary:active:not(:disabled) {
    background-color: var(--btn-secondary-active);
    border-color: var(--btn-secondary-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow);
}

.btn-danger {
    background-color: var(--btn-danger-bg);
    color: white;
    border-color: var(--btn-danger-bg);
}

.btn-danger:hover:not(:disabled) {
    background-color: var(--btn-danger-hover);
    border-color: var(--btn-danger-hover);
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
}

.btn-danger:active:not(:disabled) {
    background-color: var(--btn-danger-active);
    border-color: var(--btn-danger-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow);
}

.btn-warning {
    background-color: var(--btn-warning-bg);
    color: white;
    border-color: var(--btn-warning-bg);
}

.btn-warning:hover:not(:disabled) {
    background-color: var(--btn-warning-hover);
    border-color: var(--btn-warning-hover);
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
}

.btn-warning:active:not(:disabled) {
    background-color: var(--btn-warning-active);
    border-color: var(--btn-warning-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow);
}

/* Variantes Outline */
.btn-outline-primary {
    color: var(--btn-primary-bg);
    border-color: var(--btn-primary-bg);
    background-color: transparent;
}

.btn-outline-primary:hover:not(:disabled) {
    background-color: var(--btn-primary-bg);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
}

.btn-outline-secondary {
    color: var(--btn-secondary-bg);
    border-color: var(--btn-secondary-bg);
    background-color: transparent;
}

.btn-outline-secondary:hover:not(:disabled) {
    background-color: var(--btn-secondary-bg);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
}

.btn-outline-danger {
    color: var(--btn-danger-bg);
    border-color: var(--btn-danger-bg);
    background-color: transparent;
}

.btn-outline-danger:hover:not(:disabled) {
    background-color: var(--btn-danger-bg);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
}

/* Botón Ghost (sin borde) */
.btn-ghost {
    background-color: transparent;
    border-color: transparent;
    box-shadow: none;
}

.btn-ghost:hover:not(:disabled) {
    background-color: rgba(0, 0, 0, 0.05);
    transform: translateY(-1px);
}

/* Botones con Iconos */
.btn-icon-only {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 50%;
}

.btn-icon-only.btn-sm {
    width: 36px;
    height: 36px;
}

.btn-icon-only.btn-lg {
    width: 52px;
    height: 52px;
}

/* Grupos de Botones */
.btn-group {
    display: inline-flex;
    vertical-align: middle;
}

.btn-group .btn {
    border-radius: 0;
    margin-left: -2px;
}

.btn-group .btn:first-child {
    border-top-left-radius: var(--btn-radius);
    border-bottom-left-radius: var(--btn-radius);
    margin-left: 0;
}

.btn-group .btn:last-child {
    border-top-right-radius: var(--btn-radius);
    border-bottom-right-radius: var(--btn-radius);
}

.btn-group .btn:only-child {
    border-radius: var(--btn-radius);
}

/* Animación de Loading */
.btn-loading {
    position: relative;
    pointer-events: none;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    margin: auto;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: btn-loading-spin 1s ease infinite;
}

@keyframes btn-loading-spin {
    from {
        transform: rotate(0turn);
    }
    to {
        transform: rotate(1turn);
    }
}

/* Estilos específicos para Coquicool */
.add-to-cart {
    background: linear-gradient(135deg, var(--btn-primary-bg), var(--btn-primary-hover));
    color: white;
    border: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.add-to-cart::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.add-to-cart:hover::before {
    left: 100%;
}

.add-to-cart:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--btn-primary-hover), var(--btn-primary-active));
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.3);
}

.add-to-cart:active:not(:disabled) {
    transform: translateY(-1px) scale(1);
    box-shadow: 0 3px 10px rgba(76, 175, 80, 0.2);
}

/* Botones del carrito */
.cart-btn {
    border-radius: 6px;
    font-weight: 600;
    transition: var(--btn-transition);
}

.cart-btn-primary {
    background: linear-gradient(135deg, var(--btn-secondary-bg), var(--btn-secondary-hover));
    color: white;
    border: none;
}

.cart-btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--btn-secondary-hover), var(--btn-secondary-active));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.cart-btn-outline {
    background: white;
    color: var(--btn-danger-bg);
    border: 2px solid var(--btn-danger-bg);
}

.cart-btn-outline:hover:not(:disabled) {
    background: var(--btn-danger-bg);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
}

/* Botones de cantidad */
.quantity-btn {
    width: 32px;
    height: 32px;
    padding: 0;
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 4px;
    color: #495057;
    font-weight: 600;
    transition: var(--btn-transition);
}

.quantity-btn:hover:not(:disabled) {
    background: #e9ecef;
    border-color: #adb5bd;
    transform: scale(1.1);
}

.quantity-btn:active:not(:disabled) {
    background: #dee2e6;
    transform: scale(0.95);
}

/* Responsive Design */
@media (max-width: 768px) {
    .btn {
        padding: 10px 20px;
        font-size: 14px;
        min-height: 44px;
    }
    
    .btn-sm {
        padding: 8px 16px;
        font-size: 12px;
        min-height: 40px;
    }
    
    .btn-lg {
        padding: 14px 28px;
        font-size: 16px;
        min-height: 48px;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        margin-left: 0;
        margin-top: -2px;
        border-radius: 0;
    }
    
    .btn-group .btn:first-child {
        border-top-left-radius: var(--btn-radius);
        border-top-right-radius: var(--btn-radius);
        border-bottom-left-radius: 0;
        margin-top: 0;
    }
    
    .btn-group .btn:last-child {
        border-bottom-left-radius: var(--btn-radius);
        border-bottom-right-radius: var(--btn-radius);
        border-top-right-radius: 0;
    }
}

/* Modo Oscuro */
@media (prefers-color-scheme: dark) {
    :root {
        --btn-light-bg: #495057;
        --btn-light-hover: #5a6268;
        --btn-light-active: #6c757d;
    }
    
    .btn-ghost:hover:not(:disabled) {
        background-color: rgba(255, 255, 255, 0.1);
    }
}

/* Accesibilidad */
@media (prefers-reduced-motion: reduce) {
    .btn {
        transition: none;
    }
    
    .btn:hover:not(:disabled) {
        transform: none;
    }
    
    .add-to-cart::before {
        transition: none;
    }
    
    @keyframes btn-loading-spin {
        from {
            transform: rotate(0deg);
        }
        to {
            transform: rotate(360deg);
        }
    }
}

/* Estados de Foco para lectores de pantalla */
.btn:focus-visible {
    outline: 2px solid var(--btn-primary-bg);
    outline-offset: 2px;
}