/* ============================================
   ISP Middleware - Design System
   Dark theme, modern, professional
   ============================================ */

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

:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d27;
    --bg-card: #1e2130;
    --bg-input: #252836;
    --bg-hover: #2a2d3e;

    --border-color: #2d3148;
    --border-focus: #6366f1;

    --text-primary: #e4e6f0;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --accent-blue: #6366f1;
    --accent-blue-hover: #818cf8;
    --accent-green: #10b981;
    --accent-green-bg: rgba(16, 185, 129, 0.12);
    --accent-red: #ef4444;
    --accent-red-bg: rgba(239, 68, 68, 0.12);
    --accent-orange: #f59e0b;
    --accent-orange-bg: rgba(245, 158, 11, 0.12);
    --accent-purple: #8b5cf6;
    --accent-purple-bg: rgba(139, 92, 246, 0.12);
    --accent-info: #3b82f6;
    --accent-info-bg: rgba(59, 130, 246, 0.12);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);

    --transition: all 0.2s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html { font-size: 14px; }
body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a { color: var(--accent-blue); text-decoration: none; }
a:hover { color: var(--accent-blue-hover); }
code {
    background: var(--bg-input);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
}
hr, .divider { border: none; border-top: 1px solid var(--border-color); margin: 1rem 0; }

/* --- Navbar --- */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    height: 56px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.nav-logo { font-size: 1.5rem; }
.nav-title {
    font-weight: 700;
    font-size: 1.1rem;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-links {
    display: flex;
    gap: 0.25rem;
}
.nav-link {
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}
.nav-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.nav-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.nav-username { font-weight: 500; font-size: 0.85rem; }
.nav-logout { color: var(--accent-red) !important; }

/* --- Main Content --- */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* --- Page Header --- */
.page-header {
    margin-bottom: 1.5rem;
}
.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}
.page-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 1.25rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.card:hover {
    box-shadow: var(--shadow-md);
}
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 0.75rem;
}
.card-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}
.card-body {
    padding: 1.25rem;
}

.cards-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}
.card-half { /* Handled by grid */ }

/* --- Metrics Grid --- */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}
.metric-blue::before { background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple)); }
.metric-green::before { background: linear-gradient(90deg, var(--accent-green), #34d399); }
.metric-purple::before { background: linear-gradient(90deg, var(--accent-purple), #c084fc); }
.metric-orange::before { background: linear-gradient(90deg, var(--accent-orange), #fbbf24); }

.metric-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.metric-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.metric-value { font-size: 2.25rem; font-weight: 700; }
.metric-label { color: var(--text-secondary); font-size: 0.85rem; margin-top: 0.25rem; }
.metric-detail { color: var(--text-muted); font-size: 0.75rem; margin-top: 0.5rem; }

/* --- Badges --- */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.4;
}
.badge-admin { background: var(--accent-purple-bg); color: var(--accent-purple); }
.badge-tercero { background: var(--accent-info-bg); color: var(--accent-info); }
.badge-success { background: var(--accent-green-bg); color: var(--accent-green); }
.badge-error { background: var(--accent-red-bg); color: var(--accent-red); }
.badge-warning { background: var(--accent-orange-bg); color: var(--accent-orange); }
.badge-info { background: var(--accent-info-bg); color: var(--accent-info); }
.badge-purple { background: var(--accent-purple-bg); color: var(--accent-purple); }
.badge-default { background: rgba(255,255,255,0.06); color: var(--text-secondary); }
.badge-critical { background: rgba(220, 38, 38, 0.2); color: #fca5a5; }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-weight: 500;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-primary);
    background: var(--bg-input);
}
.btn:hover { background: var(--bg-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--accent-blue); color: #fff; }
.btn-primary:hover { background: var(--accent-blue-hover); color: #fff; }
.btn-success { background: var(--accent-green); color: #fff; }
.btn-success:hover { background: #059669; color: #fff; }
.btn-danger { background: var(--accent-red); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }
.btn-warning { background: var(--accent-orange); color: #000; }
.btn-warning:hover { background: #d97706; }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--bg-hover); }

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-xs { padding: 0.2rem 0.5rem; font-size: 0.75rem; }
.btn-full { width: 100%; justify-content: center; }

/* --- Forms --- */
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.35rem;
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.55rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.85rem;
    transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-inline-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
    align-items: end;
}
.form-inline {
    display: flex;
    gap: 0.75rem;
    align-items: end;
    flex-wrap: wrap;
}
.form-actions {
    display: flex;
    align-items: end;
}

.textarea-full {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.55rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.85rem;
    resize: vertical;
}

.input-search, .input-select {
    padding: 0.4rem 0.75rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: 0.85rem;
}
.input-search:focus, .input-select:focus {
    outline: none;
    border-color: var(--border-focus);
}
.input-search { min-width: 200px; }

/* --- Filters --- */
.filters-form {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.bulk-action-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
.data-table th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
.data-table td {
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid rgba(45, 49, 72, 0.5);
    vertical-align: middle;
}
.data-table tbody tr {
    transition: var(--transition);
}
.data-table tbody tr:hover {
    background: var(--bg-hover);
}
.data-table-compact td,
.data-table-compact th {
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
}

.actions-cell {
    display: flex;
    gap: 0.35rem;
    align-items: center;
}

/* --- Log row colors --- */
.log-row.log-error { border-left: 3px solid var(--accent-red); }
.log-row.log-critical { border-left: 3px solid #dc2626; background: rgba(239, 68, 68, 0.05); }
.log-row.log-warning { border-left: 3px solid var(--accent-orange); }

/* --- Pagination --- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1rem 0 0;
}
.page-info {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* --- Alerts --- */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.85rem;
}
.alert-error {
    background: var(--accent-red-bg);
    color: var(--accent-red);
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.alert-success {
    background: var(--accent-green-bg);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* --- Sync --- */
.sync-info { display: flex; flex-direction: column; gap: 0.5rem; }
.sync-item { display: flex; justify-content: space-between; align-items: center; }
.sync-label { color: var(--text-secondary); font-size: 0.85rem; }
.sync-value { font-weight: 500; font-size: 0.85rem; }
.sync-result-box { margin-top: 1rem; }

.config-list { display: flex; flex-direction: column; gap: 0.5rem; }
.config-item { display: flex; justify-content: space-between; align-items: center; }
.config-label { color: var(--text-secondary); font-size: 0.85rem; }
.config-value { font-weight: 500; font-size: 0.85rem; }

/* --- Quick Actions --- */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
}
.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}
.quick-action-btn:hover {
    background: var(--bg-hover);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    color: var(--text-primary);
}
.qa-icon { font-size: 1.75rem; }
.qa-text { font-size: 0.85rem; font-weight: 500; }

/* --- Login --- */
.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #0f1117 0%, #1a1d27 50%, #1e2130 100%);
}
.login-container {
    width: 100%;
    max-width: 420px;
    padding: 2rem;
}
.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}
.login-header {
    text-align: center;
    margin-bottom: 2rem;
}
.login-logo {
    font-size: 3rem;
    display: block;
    margin-bottom: 0.75rem;
}
.login-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}
.login-form .form-group { margin-bottom: 1.25rem; }
.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
    backdrop-filter: blur(4px);
}
.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 560px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}
.modal-header h3 { font-size: 1.1rem; }
.modal-body { padding: 1.25rem; }
.realtime-data h4 {
    margin: 1rem 0 0.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* --- Utilities --- */
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.text-mono { font-family: 'JetBrains Mono', 'Fira Code', monospace; font-size: 0.8rem; }
.text-truncate { max-width: 250px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.api-key-display { font-size: 0.75rem; }

/* --- Responsive --- */
@media (max-width: 768px) {
    .navbar { flex-wrap: wrap; height: auto; padding: 0.75rem; gap: 0.5rem; }
    .nav-links { flex-wrap: wrap; }
    .cards-row { grid-template-columns: 1fr; }
    .metrics-grid { grid-template-columns: 1fr 1fr; }
    .form-inline-grid { grid-template-columns: 1fr; }
    .main-content { padding: 1rem; }
}