/* ── SecurePeak Design System ─────────────────────────────────────────── */

:root {
    --bg-primary: #0a0f1a;
    --bg-surface: #111827;
    --bg-sidebar: #0d1321;
    --bg-input: #1a2332;
    --bg-hover: #1f2937;
    --bg-card: #151d2b;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent: #10b981;
    --accent-hover: #059669;
    --accent-dim: rgba(16, 185, 129, 0.1);
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --warning: #f59e0b;
    --info: #3b82f6;
    --border: #1f2937;
    --border-light: #374151;
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.4);
    --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    --sidebar-width: 240px;
    --topbar-height: 0px;
}

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

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
}

/* ── Layout ──────────────────────────────────────────────────────────── */

.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--border);
}

.sidebar-brand h1 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.sidebar-brand h1 span {
    color: var(--accent);
}

.sidebar-brand .brand-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.sidebar-nav {
    padding: 12px 0;
    flex: 1;
}

.nav-section {
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-section-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 8px 8px 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.15s;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-dim);
    color: var(--accent);
}

.nav-item svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    opacity: 0.7;
}

.nav-item.active svg {
    opacity: 1;
}

.sidebar-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    font-size: 12px;
    color: var(--text-muted);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-user .user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent-dim);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
}

.page-header {
    padding: 24px 32px 0;
}

.page-header h2 {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 4px;
}

.page-body {
    padding: 20px 32px 32px;
}

/* ── Cards ───────────────────────────────────────────────────────────── */

.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.card-header {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.card-body {
    padding: 18px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

/* ── Stat Cards ──────────────────────────────────────────────────────── */

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
}

.stat-card .stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    margin-top: 4px;
    letter-spacing: -0.02em;
}

.stat-card .stat-value.accent { color: var(--accent); }
.stat-card .stat-value.danger { color: var(--danger); }
.stat-card .stat-value.warning { color: var(--warning); }
.stat-card .stat-value.info { color: var(--info); }

/* ── Server Cards ────────────────────────────────────────────────────── */

.server-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    transition: border-color 0.15s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.server-card:hover {
    border-color: var(--border-light);
}

.server-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.server-card-header h4 {
    font-size: 14px;
    font-weight: 600;
}

.server-card .server-url {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.server-card .server-stats {
    display: flex;
    gap: 16px;
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.server-card .server-stats span strong {
    color: var(--text-primary);
}

/* ── Status Badges ───────────────────────────────────────────────────── */

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online { background: var(--accent); box-shadow: 0 0 6px var(--accent); }
.status-dot.offline { background: var(--danger); box-shadow: 0 0 6px var(--danger); }
.status-dot.unknown { background: var(--text-muted); }

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
}

.badge-green { background: rgba(16,185,129,0.15); color: #34d399; }
.badge-red { background: rgba(239,68,68,0.15); color: #f87171; }
.badge-yellow { background: rgba(245,158,11,0.15); color: #fbbf24; }
.badge-blue { background: rgba(59,130,246,0.15); color: #60a5fa; }
.badge-gray { background: rgba(107,114,128,0.15); color: #9ca3af; }

.tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    background: var(--bg-hover);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

/* ── Tables ──────────────────────────────────────────────────────────── */

.table-wrap {
    overflow-x: auto;
}

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

thead th {
    text-align: left;
    padding: 10px 14px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tbody td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    vertical-align: middle;
}

tbody tr {
    transition: background 0.1s;
}

tbody tr:hover {
    background: var(--bg-hover);
}

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

td .mono {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
}

/* ── Forms ────────────────────────────────────────────────────────────── */

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

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group .form-hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="url"],
select,
textarea {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font);
    transition: border-color 0.15s;
    outline: none;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent);
}

textarea {
    min-height: 100px;
    resize: vertical;
    font-family: var(--font-mono);
    font-size: 12px;
}

select {
    appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%239ca3af' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 32px;
}

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

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

/* ── Buttons ─────────────────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s;
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { background: var(--danger-hover); }

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 6px 10px;
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-hover); }

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

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

/* ── Toasts ──────────────────────────────────────────────────────────── */

.toast-container {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-size: 13px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.2s ease-out;
    max-width: 360px;
}

.toast.success { border-left: 3px solid var(--accent); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.warning { border-left: 3px solid var(--warning); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ── Modal ───────────────────────────────────────────────────────────── */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 520px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
    font-size: 15px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ── Code / Payload ──────────────────────────────────────────────────── */

.code-block {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-family: var(--font-mono);
    font-size: 12px;
    overflow-x: auto;
    white-space: pre-wrap;
    color: var(--text-secondary);
}

.var-highlight {
    color: var(--accent);
    font-weight: 500;
}

/* ── Empty State ─────────────────────────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state svg {
    width: 48px;
    height: 48px;
    opacity: 0.3;
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 14px;
    margin-bottom: 16px;
}

/* ── Activity Feed ───────────────────────────────────────────────────── */

.activity-item {
    display: flex;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
}

.activity-item:last-child { border-bottom: none; }

.activity-item .time {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
}

/* ── Login Page ──────────────────────────────────────────────────────── */

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
}

.login-box {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    width: 100%;
    max-width: 380px;
    box-shadow: var(--shadow-lg);
}

.login-box h1 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 4px;
}

.login-box h1 span { color: var(--accent); }

.login-box .login-sub {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.login-box .btn-primary {
    width: 100%;
    justify-content: center;
    padding: 10px;
}

.login-error {
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.3);
    color: #f87171;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    margin-bottom: 16px;
}

/* ── Utilities ───────────────────────────────────────────────────────── */

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.text-sm { font-size: 12px; }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--accent); }
.text-danger { color: var(--danger); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.w-full { width: 100%; }

/* ── HTMX Loading Indicator ──────────────────────────────────────────── */

.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline-block;
}

.spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border-light);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ── Responsive ──────────────────────────────────────────────────────── */

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.2s;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .form-row, .form-row-3 {
        grid-template-columns: 1fr;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
}