/* ==========================================================================
   Sistema de Beneficios - La Voz de Pucón
   ========================================================================== */

/* Variables CSS */
:root {
    --color-primary: #ff005b;
    --color-secondary: #0be6af;
    --color-accent: #9f0c05;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #ffffff;
    --color-bg-alt: #f5f5f5;
    --color-border: #e0e0e0;
    --color-success: #28a745;
    --color-error: #dc3545;
    --color-warning: #ffc107;

    --font-titles: 'Oswald', sans-serif;
    --font-ui: 'Roboto', sans-serif;
    --font-body: 'PT Serif', serif;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --transition: all 0.3s ease;
}

/* Reset básico */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-bg-alt);
    line-height: 1.6;
    min-height: 100vh;
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-titles);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-accent);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-sm {
    max-width: 600px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: white;
    font-family: var(--font-titles);
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo img {
    height: 40px;
}

.nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav a {
    color: rgba(255,255,255,0.9);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    padding: 0.5rem;
    transition: var(--transition);
}

.nav a:hover {
    color: white;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-size: 0.9rem;
}

/* Main */
main {
    padding: 2rem 0;
    min-height: calc(100vh - 200px);
}

/* Cards */
.card {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    object-position: center;
    background-color: var(--color-bg-alt);
}

.card-body {
    padding: 1.25rem;
}

.card-title {
    font-family: var(--font-titles);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.card-text {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--color-text-light);
    padding-top: 0.75rem;
    border-top: 1px solid var(--color-border);
}

/* Beneficio Card */
.beneficio-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.beneficio-card .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.beneficio-comercio {
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
}

.beneficio-vigencia {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.beneficio-stock {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    background: var(--color-bg-alt);
}

.beneficio-stock.bajo {
    background: #fff3cd;
    color: #856404;
}

.beneficio-stock.agotado {
    background: #f8d7da;
    color: #721c24;
}

/* Grid de beneficios */
.beneficios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

/* Categorías */
.categorias-nav {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.categoria-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: transparent;
    color: var(--color-text);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.categoria-btn:hover,
.categoria-btn.active {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: white;
}

.categoria-btn i {
    font-size: 1rem;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-accent);
    color: white;
}

.btn-secondary {
    background: var(--color-secondary);
    color: var(--color-text);
}

.btn-secondary:hover {
    background: #09c999;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 0, 91, 0.1);
}

.form-control::placeholder {
    color: #aaa;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

/* Código de verificación */
.codigo-input {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.codigo-input input {
    width: 50px;
    height: 60px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.codigo-input input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    font-family: var(--font-ui);
    font-size: 0.9rem;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Login page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    padding: 2rem;
}

.login-box {
    width: 100%;
    max-width: 420px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 2.5rem;
    text-align: center;
}

.login-logo {
    margin-bottom: 1.5rem;
}

.login-logo img {
    max-width: 180px;
}

.login-title {
    font-family: var(--font-titles);
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.login-subtitle {
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

/* Código box (confirmación de canje) */
.codigo-box {
    background: var(--color-bg-alt);
    border: 3px dashed var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    margin: 2rem 0;
}

.codigo-display {
    font-family: 'Courier New', monospace;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--color-primary);
    letter-spacing: 0.25rem;
    margin: 1rem 0;
}

/* Detalle de beneficio */
.beneficio-detalle {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.beneficio-imagen {
    width: 100%;
    height: 300px;
    object-fit: cover;
    object-position: center;
    background-color: var(--color-bg-alt);
}

.beneficio-info {
    padding: 2rem;
}

.beneficio-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.beneficio-titulo {
    font-size: 1.75rem;
    margin-bottom: 0.25rem;
}

.beneficio-descripcion {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.beneficio-detalles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
}

.beneficio-detalle-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.beneficio-detalle-item i {
    color: var(--color-primary);
    font-size: 1.25rem;
}

.beneficio-detalle-item span {
    font-size: 0.9rem;
}

/* Tabla */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-ui);
    font-size: 0.9rem;
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    background: var(--color-bg-alt);
    font-weight: 600;
    color: var(--color-text);
}

.table tr:hover {
    background: rgba(0,0,0,0.02);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 50px;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

/* Footer */
.footer {
    background: var(--color-text);
    color: rgba(255,255,255,0.7);
    padding: 2rem 0;
    text-align: center;
    font-size: 0.85rem;
}

.footer a {
    color: var(--color-secondary);
}

/* Página de validación comercio */
.validar-page {
    min-height: 100vh;
    padding: 2rem;
    background: var(--color-bg-alt);
}

.validar-box {
    max-width: 500px;
    margin: 0 auto;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem;
}

.validar-resultado {
    margin-top: 2rem;
    padding: 1.5rem;
    border-radius: var(--radius-md);
}

.validar-valido {
    background: #d4edda;
    border: 2px solid #28a745;
}

.validar-invalido {
    background: #f8d7da;
    border: 2px solid #dc3545;
}

/* Admin styles */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background: var(--color-text);
    color: white;
    padding: 1.5rem 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.admin-sidebar-logo {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 1rem;
}

.admin-sidebar-logo h2 {
    color: white;
    font-size: 1.25rem;
    margin: 0;
}

.admin-sidebar-logo span {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
}

.admin-nav {
    list-style: none;
}

.admin-nav li a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.5rem;
    color: rgba(255,255,255,0.7);
    font-family: var(--font-ui);
    font-size: 0.9rem;
    transition: var(--transition);
}

.admin-nav li a:hover,
.admin-nav li a.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.admin-nav li a i {
    width: 20px;
    text-align: center;
}

.admin-content {
    flex: 1;
    margin-left: 250px;
    padding: 2rem;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.admin-title {
    font-size: 1.75rem;
    margin: 0;
}

/* Stats cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.stat-card-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.stat-card-icon.primary {
    background: rgba(255, 0, 91, 0.1);
    color: var(--color-primary);
}

.stat-card-icon.secondary {
    background: rgba(11, 230, 175, 0.1);
    color: var(--color-secondary);
}

.stat-card-icon.accent {
    background: rgba(159, 12, 5, 0.1);
    color: var(--color-accent);
}

.stat-card-icon.warning {
    background: rgba(255, 193, 7, 0.1);
    color: var(--color-warning);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-titles);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(-20px);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text-light);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--color-text-light);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.3;
}

.empty-state h3 {
    margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }

    .beneficios-grid {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        transform: translateX(-100%);
        z-index: 1001;
    }

    .admin-sidebar.open {
        transform: translateX(0);
    }

    .admin-content {
        margin-left: 0;
    }

    .beneficio-header {
        flex-direction: column;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .login-box {
        padding: 1.5rem;
    }

    .codigo-input input {
        width: 40px;
        height: 50px;
        font-size: 1.25rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Admin image previews */
.admin-content img.preview,
.admin-content img[id*="preview"] {
    max-width: 200px;
    max-height: 150px;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-md);
    background-color: var(--color-bg-alt);
}

.table img {
    max-width: 80px;
    max-height: 60px;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-sm);
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
