/* ============================================
   Service Monitor - Dark Theme Styles
   ============================================ */

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --success: #22c55e;
    --success-bg: #14532d;
    --danger: #ef4444;
    --danger-bg: #7f1d1d;
    --warning: #f59e0b;
    --border: #334155;
    --radius: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* ---- Navbar ---- */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    display: flex;
    align-items: center;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #38bdf8;
    margin-right: 32px;
}

.nav-logo { font-size: 22px; }

.nav-links {
    display: flex;
    gap: 4px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-links a:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.nav-links a.active { color: #38bdf8; background: rgba(56, 189, 248, 0.1); }
.nav-logout { color: var(--danger) !important; margin-left: auto; }

.nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 24px; cursor: pointer; }

/* ---- Container ---- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* ---- Stats Grid ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-time {
    font-size: 14px;
    color: var(--text-secondary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stat-up .stat-number { color: var(--success); }
.stat-down .stat-number { color: var(--danger); }

/* ---- Cards ---- */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    overflow: hidden;
}

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

.card-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

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

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

thead th {
    background: var(--bg-primary);
    padding: 10px 14px;
    text-align: left;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

tbody td {
    padding: 10px 14px;
    border-top: 1px solid var(--border);
    font-size: 14px;
    vertical-align: middle;
}

tbody tr:hover { background: rgba(56, 189, 248, 0.03); }

.url-cell {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
    color: var(--text-secondary);
}

.nowrap { white-space: nowrap; }
.row-disabled { opacity: 0.5; }

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-up { background: var(--success-bg); color: #86efac; }
.badge-down { background: var(--danger-bg); color: #fca5a5; }

/* ---- Buttons ---- */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1.4;
}

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

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

.btn-success { background: #16a34a; border-color: #16a34a; color: white; }
.btn-success:hover { background: #15803d; }

.btn-danger { background: var(--danger); border-color: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; }

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

.btn-block { display: block; width: 100%; text-align: center; }

.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-xs { padding: 3px 8px; font-size: 12px; }

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group.full-width { grid-column: 1 / -1; }

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 9px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #38bdf8;
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15);
}

.form-group textarea { resize: vertical; min-height: 60px; }
.form-group code { font-size: 12px; color: #10b981; background: rgba(16,185,129,0.1); padding: 2px 6px; border-radius: 4px; }

.form-group small {
    font-size: 12px;
    color: var(--text-muted);
}

.form-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    margin-top: 16px;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
}

/* ---- Filter Bar ---- */
.filter-bar {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    padding-bottom: 12px;
}

.filter-bar select {
    padding: 6px 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 13px;
}

/* ---- Pagination ---- */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px;
    border-top: 1px solid var(--border);
}

.page-info {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ---- Alerts ---- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-success { background: var(--success-bg); color: #86efac; border: 1px solid #166534; }
.alert-danger { background: var(--danger-bg); color: #fca5a5; border: 1px solid #991b1b; }

/* ---- WhatsApp Settings Tabs ---- */
.wa-tabs {
    display: flex;
    gap: 4px;
    padding: 8px;
    background: rgba(255,255,255,0.04);
    border-bottom: 1px solid var(--border);
    border-radius: 12px 12px 0 0;
}

.wa-tab {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    color: rgba(255,255,255,0.5);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.wa-tab:hover { color: rgba(255,255,255,0.8); background: rgba(255,255,255,0.04); }
.wa-tab.active { background: rgba(59,130,246,0.15); color: #93c5fd; border: 1px solid rgba(59,130,246,0.2); }
.tab-icon { font-size: 16px; }

/* ---- Status Banner ---- */
.wa-status-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    border-radius: 14px;
    margin-bottom: 24px;
}

.wa-status-banner.wa-connected {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.wa-status-banner.wa-disconnected {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.wa-status-banner p { font-size: 13px; color: rgba(255,255,255,0.5); margin: 2px 0 0; }
.wa-status-banner strong { font-size: 15px; font-weight: 600; color: #fff; }

.wa-status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.wa-connected .wa-status-dot { background: #10b981; box-shadow: 0 0 8px rgba(16,185,129,0.5); }
.wa-disconnected .wa-status-dot { background: #ef4444; box-shadow: 0 0 8px rgba(239,68,68,0.5); }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ---- Settings Card (inner) ---- */
.settings-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    padding: 32px;
    margin-bottom: 24px;
}

.settings-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 22px;
    color: white;
}

.card-icon.green { background: linear-gradient(135deg, #10b981, #059669); }
.card-icon.blue { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.card-icon.purple { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.card-icon.orange { background: linear-gradient(135deg, #f59e0b, #d97706); }

.settings-card-header h3 { font-size: 18px; font-weight: 700; color: #fff; }
.settings-card-header p { font-size: 13px; color: rgba(255,255,255,0.4); margin-top: 2px; }

/* ---- WhatsApp Profile ---- */
.wa-profile {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 14px;
    margin-bottom: 24px;
}

.wa-profile-pic {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, #25D366, #128C7E);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    font-size: 28px;
    color: white;
}

.wa-profile-pic img { width: 100%; height: 100%; object-fit: cover; }

.wa-profile-info { flex: 1; }
.wa-profile-info h4 { font-size: 17px; font-weight: 600; color: #fff; }
.wa-profile-info .phone { font-size: 14px; color: rgba(255,255,255,0.5); margin-top: 2px; }
.wa-profile-actions { display: flex; gap: 8px; }

/* ---- Credential Grid ---- */
.credential-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

@media (max-width: 640px) { .credential-grid { grid-template-columns: 1fr; } }

.credential-item {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 16px 20px;
}

.credential-item label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: rgba(255,255,255,0.4);
    margin-bottom: 8px;
}

.credential-value {
    display: flex;
    align-items: center;
    gap: 8px;
}

.credential-value code {
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 14px;
    color: #10b981;
    background: rgba(16, 185, 129, 0.1);
    padding: 6px 12px;
    border-radius: 8px;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-copy {
    padding: 6px 10px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
    border-radius: 6px;
    cursor: pointer;
    font-size: 11px;
    font-family: inherit;
    transition: all 0.2s;
    flex-shrink: 0;
}

.btn-copy:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-copy.copied { background: rgba(16,185,129,0.15); color: #10b981; border-color: rgba(16,185,129,0.3); }

/* ---- Info Box ---- */
.info-box {
    padding: 16px 20px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: 12px;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.info-box .info-icon { flex-shrink: 0; color: #3b82f6; font-size: 18px; }

/* ---- Self-hosted Badge ---- */
.wa-self-hosted-badge {
    padding: 16px 20px;
    background: rgba(16,185,129,0.08);
    border: 1px solid rgba(16,185,129,0.15);
    border-radius: 12px;
    margin: 20px 0;
    color: #10b981;
    font-size: 14px;
    font-weight: 600;
}

.wa-self-hosted-badge p { font-size: 13px; color: rgba(255,255,255,0.5); margin-top: 6px; font-weight: 400; line-height: 1.5; }

/* ---- Form Row (two columns) ---- */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }

.readonly-field {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-group .hint {
    font-size: 12px;
    color: rgba(255,255,255,0.3);
    margin-top: 6px;
}

/* ---- Button Group ---- */
.btn-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 8px;
}

/* ---- Button Variants (extended) ---- */
.btn-warning { background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.3); color: #fbbf24; }
.btn-warning:hover { background: rgba(245,158,11,0.25); }

/* ---- Link Device ---- */
.wa-link-device-area {
    text-align: center;
    padding: 48px 24px;
    margin-bottom: 20px;
}

.wa-qr-display { display: inline-block; }
.wa-qr-container {
    display: inline-block;
    padding: 20px;
    background: #fff;
    border-radius: 16px;
    margin: 20px auto;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.wa-qr-image { max-width: 250px; display: block; }

.wa-connected-display { text-align: center; }
.wa-check-icon { font-size: 64px; margin-bottom: 16px; }
.wa-connected-display h3 { font-size: 20px; margin-bottom: 8px; }

.wa-link-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.wa-link-note {
    padding: 16px 20px;
    background: rgba(245,158,11,0.08);
    border: 1px solid rgba(245,158,11,0.15);
    border-radius: 12px;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
    line-height: 1.6;
}

.wa-link-note code {
    background: rgba(255,255,255,0.1);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    color: #38bdf8;
}

/* ---- QR Steps ---- */
.qr-steps {
    text-align: left;
    list-style: none;
    max-width: 400px;
    margin: 16px auto 0;
    padding: 0;
}

.qr-steps li {
    padding: 8px 0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}

.qr-steps .step-num {
    display: inline-flex;
    width: 24px;
    height: 24px;
    background: rgba(59,130,246,0.15);
    color: #93c5fd;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    flex-shrink: 0;
}

.wa-test-form { max-width: 500px; }

.settings-header { flex-direction: column; align-items: flex-start !important; }

.input-group {
    display: flex;
    gap: 8px;
}

.input-group input {
    flex: 1;
    padding: 12px 16px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    color: #fff;
    font-size: 14px;
}

/* ---- Code Block ---- */
.code-block {
    background: var(--bg-primary);
    padding: 12px 16px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.code-block code {
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 13px;
    color: #38bdf8;
    word-break: break-all;
}

/* ---- Misc ---- */
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-center { text-align: center; }
.msg-pre { white-space: pre-wrap; font-family: inherit; font-size: 12px; color: var(--text-secondary); margin: 0; max-width: 300px; }

/* ---- Login Page ---- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-icon { font-size: 40px; margin-bottom: 12px; }
.login-card h1 { font-size: 24px; color: #38bdf8; margin-bottom: 4px; }
.login-card .sub { color: var(--text-secondary); margin-bottom: 24px; font-size: 14px; }

.login-card input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: 16px;
}

.login-card input:focus { outline: none; border-color: #38bdf8; }

/* ---- Footer ---- */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 13px;
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 8px;
    }
    .nav-links.open { display: flex; }
    .nav-toggle { display: block; margin-left: auto; }
    .nav-brand { margin-right: auto; }

    .container { padding: 16px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .form-actions { flex-direction: column; }

    .filter-bar { flex-direction: column; align-items: stretch; }
    .code-block { flex-direction: column; align-items: flex-start; }
    .input-group { flex-direction: column; }

    .wa-tabs { flex-direction: column; gap: 2px; }
    .wa-cred-grid { grid-template-columns: 1fr; }
    .wa-profile-row { flex-direction: column; text-align: center; }
    .wa-profile-actions { justify-content: center; }

    .actions-cell { white-space: nowrap; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .card-header { flex-direction: column; gap: 8px; align-items: flex-start; }
}