/**
 * ALFIL BLOG TRACKER - Estilos
 * Tema oscuro con acentos índigo/púrpura
 */

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #242424;
    --bg-card: #1a1a1a;
    --border-color: #2a2a2a;
    --border-hover: #3a3a3a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    --accent-primary: #6366f1;
    --accent-secondary: #818cf8;
    --accent-hover: #4f46e5;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

/* =============================================
   LOGIN PAGE
   ============================================= */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.login-logo {
    text-align: center;
    margin-bottom: 8px;
}

.login-logo img {
    height: 60px;
    border-radius: 12px;
}

.login-title {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-subtitle {
    text-align: center;
    font-size: 0.8rem;
    color: var(--accent-primary);
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 32px;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    cursor: pointer;
}

.form-select:focus {
    outline: none;
    border-color: var(--accent-primary);
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

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

.btn-danger:hover {
    background: #dc2626;
}

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

.btn-success:hover {
    background: #16a34a;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: 8px;
    min-width: 36px;
}

/* =============================================
   HEADER
   ============================================= */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-logo img {
    height: 36px;
    border-radius: 8px;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-user {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.header-logout {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.2s;
}

.header-logout:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* =============================================
   MAIN CONTENT
   ============================================= */
.main-content {
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

/* =============================================
   STATS CARDS
   ============================================= */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-value.accent {
    color: var(--accent-primary);
}

.stat-value.success {
    color: var(--success);
}

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

/* =============================================
   CARDS
   ============================================= */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 24px;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 20px;
}

/* =============================================
   TABLES
   ============================================= */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 14px 16px;
    font-size: 0.95rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
}

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

.table tr:hover td {
    background: var(--bg-tertiary);
}

.table .text-right {
    text-align: right;
}

.table .text-center {
    text-align: center;
}

/* =============================================
   BADGES
   ============================================= */
.badge {
    display: inline-block;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 6px;
}

.badge-success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge-info {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-primary);
}

/* =============================================
   LINKS TRACKING
   ============================================= */
.link-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 12px;
}

.link-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.link-name {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.link-url {
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--accent-secondary);
    background: var(--bg-primary);
    padding: 8px 12px;
    border-radius: 6px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.link-stats {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.link-stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

.link-stat strong {
    color: var(--text-primary);
}

/* =============================================
   COUNTRY FLAGS
   ============================================= */
.country-flag {
    font-size: 1.2rem;
    margin-right: 6px;
}

/* =============================================
   ALERTS
   ============================================= */
.alert {
    padding: 14px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: var(--success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

.alert-info {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: var(--accent-primary);
}

/* =============================================
   ADMIN NAV TABS
   ============================================= */
.nav-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.nav-tab {
    padding: 10px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-tab:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.nav-tab.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

/* =============================================
   MODAL
   ============================================= */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s;
}

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

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

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

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* =============================================
   DATE FILTER
   ============================================= */
.date-filter {
    display: flex;
    align-items: center;
    gap: 12px;
}

.date-input {
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.9rem;
}

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

/* =============================================
   EMPTY STATE
   ============================================= */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state-text {
    font-size: 0.9rem;
}

/* =============================================
   COPY BUTTON
   ============================================= */
.copy-btn {
    background: var(--accent-primary);
    border: none;
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.2s;
}

.copy-btn:hover {
    background: var(--accent-hover);
}

.copy-btn.copied {
    background: var(--success);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
    .header {
        padding: 12px 16px;
    }
    
    .header-logo span {
        display: none;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .nav-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 8px;
    }
    
    .nav-tab {
        white-space: nowrap;
    }
    
    .table th,
    .table td {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
    
    .link-url {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        word-break: break-all;
    }
    
    .link-stats {
        flex-wrap: wrap;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .login-box {
        padding: 24px;
    }
}

/* =============================================
   UTILITIES
   ============================================= */
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent-primary); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }

.hidden { display: none; }