/* 🎛️ Componentes Modernos */

/* 🔘 Sistema de Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Variantes de Botones Mejoradas */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    color: white;
    border-color: var(--primary-600);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.btn-primary::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;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5855eb 0%, #7c3aed 100%);
    border-color: #5855eb;
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.6);
    transform: translateY(-2px);
}

.btn-primary:active {
    background: linear-gradient(135deg, #4f46e5 0%, #6d28d9 100%);
    border-color: #4f46e5;
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border-color: var(--border-primary);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--border-secondary);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-600) 0%, var(--success-700) 100%);
    color: white;
    border-color: var(--success-600);
    box-shadow: 0 4px 20px var(--glow-success);
    position: relative;
    overflow: hidden;
}

.btn-success::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;
}

.btn-success:hover::before {
    left: 100%;
}

.btn-success:hover {
    background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
    border-color: #16a34a;
    box-shadow: 0 8px 30px rgba(34, 197, 94, 0.6);
    transform: translateY(-2px);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--primary-500);
    border-color: var(--primary-500);
}

.btn-outline-primary:hover {
    background-color: var(--primary-500);
    color: white;
    transform: translateY(-1px);
}

/* Estados de foco */
.btn:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

/* 📝 Formularios Modernos */
.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    line-height: 1.5;
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-100);
    background-color: var(--bg-tertiary);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 1;
}

.form-control:invalid {
    border-color: var(--error-500);
    box-shadow: 0 0 0 3px var(--error-50);
}

.form-control:valid {
    border-color: var(--success-500);
    box-shadow: 0 0 0 3px var(--success-50);
}

/* Select personalizado */
select.form-control {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--space-3) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: var(--space-10);
    appearance: none;
}

/* 📊 Tablas Modernas */
.table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background-color: var(--bg-card);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-primary);
}

.table thead th {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    text-align: left;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border-primary);
    letter-spacing: 0.025em;
    text-transform: uppercase;
}

.table tbody td {
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border-secondary);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background-color: var(--bg-secondary);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Elementos especiales */
.cart-total {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: white;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    box-shadow: var(--shadow-lg);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

/* Alertas */
.alert {
    border-radius: 0.7rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.7em;
}

.alert-success::before {
    content: '\2714';
    color: #f5f5f5;
    font-size: 1.3em;
    filter: drop-shadow(0 0 4px #f5f5f5);
}

.alert-danger::before, .alert-error::before {
    content: '\26A0';
    color: #ff2d55;
    font-size: 1.3em;
    filter: drop-shadow(0 0 4px #ff2d55);
}

.alert-info::before {
    content: '\2139';
    color: #f5f5f5;
    font-size: 1.2em;
    filter: drop-shadow(0 0 4px #f5f5f5);
}

/* Loader neón */
.neon-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 180px;
}

.neon-spinner {
    width: 56px;
    height: 56px;
    border: 6px solid #f5f5f544;
    border-top: 6px solid #f5f5f5;
    border-radius: 50%;
    animation: spin-neon 1s linear infinite;
    box-shadow: 0 0 24px #f5f5f5;
}

@keyframes spin-neon {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Botones urbanos */
.btn, .btn-primary, .btn-success, .btn-danger, .btn-warning {
    border-radius: 8px;
    font-weight: 800;
    letter-spacing: 0.05em;
    box-shadow: 0 2px 8px #0005;
    border: none;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s, transform 0.18s cubic-bezier(.4,2,.3,1);
    position: relative;
    overflow: hidden;
}

.btn:active {
    transform: scale(0.96) translateY(2px) rotate(-1deg);
    box-shadow: 0 0 16px #f5f5f5, 0 2px 8px #0005;
}

.btn:hover {
    box-shadow: 0 0 24px #f5f5f5, 0 2px 8px #0005;
}

.btn[title]:hover::after {
    content: attr(title);
    position: absolute;
    left: 50%;
    top: -2.2em;
    transform: translateX(-50%);
    background: #111;
    color: #f5f5f5;
    padding: 0.3em 0.8em;
    border-radius: 0.6em;
    font-size: 0.95em;
    white-space: nowrap;
    box-shadow: 0 0 8px #f5f5f5;
    z-index: 10;
    pointer-events: none;
    opacity: 0.95;
}

.btn-primary {
    background: #f5f5f5 !important;
    color: #222 !important;
    box-shadow: 0 0 16px 4px rgba(245,245,245,0.7), 0 2px 8px #0005;
    border-radius: 8px;
    font-weight: 800;
    border: none;
}

.btn-primary:hover {
    background: #fff !important;
    color: #222 !important;
    box-shadow: 0 0 24px #f5f5f5, 0 2px 8px #0005;
}

.btn-success {
    background: #f5f5f5 !important;
    color: #222 !important;
    border: 2px solid #f5f5f5;
    box-shadow: 0 0 16px 4px rgba(245,245,245,0.7), 0 2px 8px #0005;
}

.btn-success:hover {
    background: #fff !important;
    color: #222 !important;
    box-shadow: 0 0 24px #f5f5f5, 0 2px 8px #0005;
}

.btn-danger {
    background: #ff2d55;
    color: #fff;
}

.btn-danger:hover {
    background: #fff;
    color: #ff2d55;
}

.form-control, .form-select {
    background: #222;
    color: #fff;
    border: 1.5px solid #fff2;
    border-radius: 0.7rem;
}

.form-control:focus, .form-select:focus {
    background: #181818;
    color: #fff;
    border-color: #f5f5f5;
    box-shadow: 0 0 8px #f5f5f5;
}

/* Feedback visual en formularios */
.form-control:invalid {
    border-color: #e74c3c !important;
    box-shadow: 0 0 8px #e74c3c88 !important;
}

.form-control:valid {
    border-color: #2ecc40 !important;
    box-shadow: 0 0 8px #2ecc4088 !important;
}

/* Accesibilidad */
.high-contrast {
    filter: contrast(1.3) brightness(1.1);
}

[aria-live] {
    outline: 2px dashed #fff;
    outline-offset: 2px;
}

/* Mejoras para lectores de pantalla */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    border: 0;
}