/* =====================================================
   CORPORACIÓN FÉNIX S.A.C. - PANEL ADMIN
   ===================================================== */

:root {
    --primary: #FF6B35;
    --primary-dark: #e55a28;
    --secondary: #1a1a2e;
    --dark: #0f0f1a;
    --gray-100: #f7f7f9;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-600: #6c757d;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --white: #ffffff;
    --radius: 10px;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    background: var(--gray-100);
    color: var(--secondary);
    min-height: 100vh;
}

/* =====================================================
   LOGIN SCREEN
   ===================================================== */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--dark) 100%);
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.login-card .logo {
    width: 160px;
    margin-bottom: 24px;
}

.login-card h2 {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 24px;
    font-weight: 500;
}

.login-card .form-group {
    margin-bottom: 16px;
    text-align: left;
}

.login-card label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--secondary);
}

.login-card input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.login-card input[type="password"]:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,107,53,0.15);
}

.login-error {
    color: var(--danger);
    font-size: 0.85rem;
    margin-bottom: 12px;
    display: none;
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255,107,53,0.3);
}

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

.btn-success:hover {
    background: #218838;
}

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

.btn-danger:hover {
    background: #c82333;
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--secondary);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

/* =====================================================
   DASHBOARD LAYOUT
   ===================================================== */
.dashboard {
    display: none;
}

.dashboard.active {
    display: block;
}

/* Top Bar */
.topbar {
    background: var(--white);
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-left img {
    height: 36px;
}

.topbar-left h1 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--secondary);
}

.topbar-left span {
    font-size: 0.8rem;
    color: var(--gray-600);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Main Content */
.main-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

/* =====================================================
   CONFIG SECTION
   ===================================================== */
.config-section {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.config-section h2 {
    font-size: 1rem;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.config-row {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.config-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.config-item label {
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 48px;
    height: 26px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--gray-300);
    border-radius: 26px;
    transition: var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 3px;
    bottom: 3px;
    background: var(--white);
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--success);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

.config-item input[type="number"] {
    width: 90px;
    padding: 6px 10px;
    border: 2px solid var(--gray-300);
    border-radius: 6px;
    font-size: 0.9rem;
}

.config-item input[type="number"]:focus {
    outline: none;
    border-color: var(--primary);
}

/* =====================================================
   OFERTAS LIST
   ===================================================== */
.ofertas-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.ofertas-header h2 {
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ofertas-count {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 400;
}

.ofertas-grid {
    display: grid;
    gap: 16px;
}

/* Oferta Card */
.oferta-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: 80px 1fr auto;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

.oferta-card:hover {
    box-shadow: var(--shadow-lg);
}

.oferta-card.inactive {
    opacity: 0.55;
}

.oferta-card.expired {
    border-left: 4px solid var(--warning);
}

.oferta-thumb {
    width: 80px;
    height: 60px;
    border-radius: 6px;
    object-fit: cover;
    background: var(--gray-200);
}

.oferta-info h3 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.oferta-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 0.8rem;
    color: var(--gray-600);
}

.oferta-meta span {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-active {
    background: #d4edda;
    color: var(--success);
}

.badge-inactive {
    background: #f8d7da;
    color: var(--danger);
}

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

.oferta-actions {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* =====================================================
   MODAL / FORM
   ===================================================== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: var(--white);
    border-radius: var(--radius);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h2 {
    font-size: 1.1rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-600);
    padding: 4px;
    line-height: 1;
}

.modal-close:hover {
    color: var(--danger);
}

.modal-body {
    padding: 24px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-size: 0.9rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,107,53,0.15);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group .hint {
    font-size: 0.75rem;
    color: var(--gray-600);
    margin-top: 4px;
}

.image-preview {
    width: 100%;
    max-height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-top: 8px;
    display: none;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

/* =====================================================
   TOAST NOTIFICATIONS
   ===================================================== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    border-radius: 8px;
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    animation: toastIn 0.3s ease;
    max-width: 360px;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--info); }

.toast.removing {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(40px); }
}

/* =====================================================
   EMPTY STATE
   ===================================================== */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--gray-600);
}

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 0.95rem;
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 768px) {
    .oferta-card {
        grid-template-columns: 60px 1fr;
    }

    .oferta-actions {
        grid-column: 1 / -1;
        justify-content: flex-start;
    }

    .config-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .topbar {
        padding: 12px 16px;
    }

    .topbar-left h1 {
        font-size: 0.95rem;
    }

    .main-content {
        padding: 16px;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 28px 20px;
    }

    .modal-box {
        max-height: 95vh;
    }
}