/* KAMAND | کمند — Base styles (RTL + LTR, dark/light) */
:root {
  --color-bg: #f3f4f6;
  --color-surface: #ffffff;
  --color-sidebar: #1f2937;
  --color-sidebar-item-hover: #374151;
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-danger: #dc2626;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-border: #e5e7eb;
  --color-shadow: 0 1px 3px rgba(0,0,0,0.1);
  --radius: 10px;
  --font-sans: system-ui, -apple-system, Segoe UI, Roboto, Vazirmatn, IRANSans, Tahoma, sans-serif;
}
html[dir="rtl"] { direction: rtl; }
html[dir="ltr"] { direction: ltr; }
[data-theme="dark"] {
  --color-bg: #0f172a;
  --color-surface: #1e293b;
  --color-sidebar: #0f172a;
  --color-sidebar-item-hover: #334155;
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-primary: #3b82f6;
  --color-primary-hover: #60a5fa;
  --color-danger: #ef4444;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-border: #334155;
  --color-shadow: 0 1px 3px rgba(0,0,0,0.3);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }
body { font-family: var(--font-sans); background: var(--color-bg); color: var(--color-text); line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }

/* Auth overlay */
.auth-overlay {
  position: fixed; inset: 0; background: var(--color-surface);
  display: flex; align-items: center; justify-content: center; z-index: 100;
}
.auth-card { width: min(400px, 90vw); padding: 32px 28px; border-radius: var(--radius); box-shadow: var(--color-shadow); background: var(--color-surface); }
.auth-header { margin-bottom: 24px; text-align: center; }
.auth-header h2 { font-size: 24px; margin-bottom: 6px; letter-spacing: -0.5px; }
.auth-sub { color: var(--color-text-muted); font-size: 14px; }
.auth-form .field { margin-bottom: 16px; }
.auth-form label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--color-text-muted); }
.auth-form input[type="password"] {
  width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--color-border);
  background: var(--color-bg); color: var(--color-text); font-size: 14px;
}
.btn-block { width: 100%; }
.btn-primary { background: var(--color-primary); color: #fff; padding: 10px 16px; border-radius: 8px; font-weight: 600; }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-primary:active { transform: translateY(1px); }
.btn-text { padding: 10px 12px; border-radius: 8px; color: var(--color-primary); font-size: 13px; border: 1px solid transparent; }
.btn-text:hover { background: rgba(37,99,235,0.08); border-color: rgba(37,99,235,0.2); }
.btn-danger { background: var(--color-danger); color: #fff; padding: 10px 16px; border-radius: 8px; font-weight: 600; }
.btn-danger:hover { opacity: 0.9; }
.btn-icon { width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); display: inline-flex; align-items: center; justify-content: center; font-size: 18px; }
.btn-icon:hover { background: rgba(0,0,0,0.05); }
.error-msg { color: var(--color-danger); font-size: 13px; margin-top: 10px; }
.hidden { display: none !important; }

/* Shell layout */
.shell { display: flex; height: 100vh; max-height: 100vh; overflow: hidden; }
.sidebar {
  width: 250px; flex-shrink: 0; background: var(--color-sidebar); color: #fff;
  display: flex; flex-direction: column; border-right: 1px solid var(--color-border);
}
.sidebar-brand { padding: 20px 16px; border-bottom: 1px solid var(--color-border); }
.brand-mark { width: 36px; height: 36px; border-radius: 10px; background: var(--color-primary); display: inline-flex; align-items: center; justify-content: center; font-weight: 800; font-size: 20px; color: #fff; margin-bottom: 10px; }
.brand-text { font-weight: 700; font-size: 17px; line-height: 1.2; }
.brand-sub { font-size: 12px; font-weight: 500; color: #9ca3af; display: block; margin-top: 2px; }
.sidebar-nav { padding: 16px 8px; overflow-y: auto; flex: 1; }
.nav-item {
  display: flex; align-items: center; width: 100%; padding: 10px 14px; border-radius: 10px;
  color: #cbd5e1; font-size: 14px; font-weight: 500; gap: 10px; margin: 2px 4px;
}
.nav-item .nav-icon { font-size: 18px; }
.nav-item:hover { background: var(--color-sidebar-item-hover); color: #fff; }
.nav-item.active { background: rgba(37,99,235,0.2); color: #fff; }
.sidebar-footer { padding: 16px; border-top: 1px solid var(--color-border); }

.main-content { flex: 1; display: flex; flex-direction: column; min-width: 0; overflow: hidden; }
.topbar {
  height: 56px; background: var(--color-surface); border-bottom: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 16px; flex-shrink: 0;
}
.topbar-title { font-size: 18px; font-weight: 700; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.status-badge {
  font-size: 12px; padding: 4px 10px; border-radius: 20px; background: #eff6ff; color: var(--color-primary);
  border: 1px solid #bfdbfe;
}
.page-container { flex: 1; overflow-y: auto; padding: 24px; background: var(--color-bg); }

/* Page title block */
.page-header { margin-bottom: 24px; }
.page-title { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.page-subtitle { color: var(--color-text-muted); font-size: 14px; }

/* Grid & cards */
.grid { display: grid; gap: 16px; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--color-shadow); padding: 20px;
}
.card-title { font-size: 15px; font-weight: 700; margin-bottom: 14px; color: var(--color-text); display: flex; align-items: center; gap: 8px; }

/* Buttons & form */
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }
.form-field { margin-bottom: 16px; }
.form-field label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--color-text-muted); font-weight: 500; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 9px 12px; border-radius: 8px; border: 1px solid var(--color-border);
  background: var(--color-bg); color: var(--color-text); font-size: 14px;
}
.form-field input:focus, .form-field select:focus { outline: 2px solid var(--color-primary); border-color: transparent; }
.form-note { font-size: 12px; color: var(--color-text-muted); margin-top: 6px; }
.checkbox-field { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; font-size: 14px; }

/* Table */
.table-wrap { overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; background: var(--color-surface); }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--color-border); text-align: right; font-size: 13px; }
th { background: rgba(0,0,0,0.03); font-weight: 700; color: var(--color-text-muted); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(37,99,235,0.04); }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 11px; font-weight: 700; }
.badge-ok { background: #ecfdf5; color: var(--color-success); }
.badge-bad { background: #fef2f2; color: var(--color-danger); }
.badge-warn { background: #fffbeb; color: var(--color-warning); }
.badge-neutral { background: #f3f4f6; color: var(--color-text-muted); }

/* Status chips */
.status-chip { padding: 4px 10px; border-radius: 8px; font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.status-up { background: #ecfdf5; color: var(--color-success); }
.status-down { background: #fef2f2; color: var(--color-danger); }
.status-unknown { background: #f3f4f6; color: var(--color-text-muted); }

/* Code / uri output */
.code-box { background: #1e293b; color: #e2e8f0; border-radius: 8px; padding: 14px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; overflow: auto; word-break: break-all; border: 1px solid var(--color-border); }
.copy-btn { float: left; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 13px; display: flex; align-items: center; gap: 10px; }
.alert-error { background: #fef2f2; color: var(--color-danger); border: 1px solid #fecaca; }
.alert-info { background: #eff6ff; color: var(--color-primary); border: 1px solid #bfdbfe; }
.alert-success { background: #ecfdf5; color: var(--color-success); border: 1px solid #bbf7d0; }
.alert-warn { background: #fffbeb; color: var(--color-warning); border: 1px solid #fde68a; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.25s; position: absolute; z-index: 40; box-shadow: var(--color-shadow); }
  .sidebar.open { transform: translateX(0); }
  .page-container { padding: 16px; }
  .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr; }
  .topbar-title { font-size: 16px; }
  .auth-card { padding: 24px 20px; }
}

/* LTR mirror for English */
html[dir="ltr"] .sidebar { border-right: none; border-left: 1px solid var(--color-border); }
html[dir="ltr"] th, html[dir="ltr"] td { text-align: left; }
html[dir="ltr"] .nav-item .nav-icon { margin-right: 6px; }
html[dir="ltr"] .code-box .copy-btn { float: right; }