/* ── heabl_all – Minimal Black/White/Gray Theme ── */
:root {
  --bg: #ffffff;
  --bg-secondary: #f5f5f5;
  --bg-card: #ffffff;
  --text: #111111;
  --text-secondary: #555555;
  --text-muted: #888888;
  --border: #e0e0e0;
  --shadow: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-hover: 0 4px 12px rgba(0,0,0,0.1);
  --radius: 14px;
  --accent: #222222;
  --accent-hover: #000000;
  --danger: #cc0000;
  --success: #2d8a2d;
  --warning: #b8860b;
  --input-bg: #ffffff;
  --input-border: #d0d0d0;
  --overlay: rgba(0,0,0,0.4);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --bg-secondary: #1a1a1a;
    --bg-card: #1e1e1e;
    --text: #e5e5e5;
    --text-secondary: #aaaaaa;
    --text-muted: #777777;
    --border: #333333;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-hover: 0 4px 12px rgba(0,0,0,0.5);
    --accent: #cccccc;
    --accent-hover: #ffffff;
    --danger: #ff4444;
    --success: #44bb44;
    --warning: #ddaa33;
    --input-bg: #222222;
    --input-border: #444444;
    --overlay: rgba(0,0,0,0.6);
  }
}

* { 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);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--text); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* ── Layout ─────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

nav { display: flex; gap: 16px; align-items: center; }
nav a, nav button {
  font-size: 0.9rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
nav a:hover, nav button:hover { color: var(--text); }

main { padding: 24px 0 60px; }

/* ── Search Bar ─────────────────────────────────── */
.search-bar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-bar input {
  flex: 1;
  min-width: 200px;
  padding: 10px 16px;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
.search-bar input:focus { border-color: var(--accent); }

.stats {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ── Cards Grid ─────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

@media (max-width: 420px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, transform 0.15s;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  word-break: break-word;
}

.card-url {
  font-size: 0.8rem;
  color: var(--text-muted);
  word-break: break-all;
  display: block;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 8px;
  gap: 8px;
  flex-wrap: wrap;
}

.card-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.status-dot.online { background: var(--success); }
.status-dot.offline { background: var(--danger); }
.status-dot.timeout { background: var(--warning); }
.status-dot.unknown { background: var(--text-muted); }

.card-actions {
  display: flex;
  gap: 6px;
}

/* ── Buttons ────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
  white-space: nowrap;
}
.btn:hover { background: var(--bg-secondary); border-color: var(--accent); }

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

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

.btn-sm {
  padding: 4px 10px;
  font-size: 0.78rem;
}

/* ── Forms ──────────────────────────────────────── */
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-secondary);
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.92rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}
.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

/* ── Modal ──────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: 20px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}

.modal h2 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

/* ── Login Page ─────────────────────────────────── */
.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 70vh;
}

.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow);
}

.login-box h1 {
  font-size: 1.3rem;
  margin-bottom: 24px;
  text-align: center;
  font-weight: 600;
}

.login-box .btn-primary {
  width: 100%;
  padding: 12px;
  font-size: 0.95rem;
  justify-content: center;
}

/* ── Admin Page ─────────────────────────────────── */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 12px;
  flex-wrap: wrap;
}

.admin-header h1 {
  font-size: 1.3rem;
  font-weight: 600;
}

.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
th, td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
th {
  background: var(--bg-secondary);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
tr:hover td {
  background: var(--bg-secondary);
}
td { color: var(--text); }

/* Mobile admin: switch to card-based layout */
@media (max-width: 768px) {
  .admin-table-wrap {
    border: none;
  }
  table, thead, tbody, th, td, tr {
    display: block;
  }
  thead { display: none; }
  tr {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    padding: 14px;
  }
  td {
    padding: 4px 0;
    border: none;
    display: flex;
    justify-content: space-between;
    gap: 8px;
  }
  td::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    flex-shrink: 0;
  }
  td:last-child {
    justify-content: flex-end;
    padding-top: 8px;
  }
}

/* ── Toast ──────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--accent);
  color: var(--bg);
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.88rem;
  z-index: 9999;
  animation: toast-in 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Error message ──────────────────────────────── */
.error-msg {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 8px;
}

/* ── Empty state ────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state p {
  font-size: 1rem;
  margin-bottom: 8px;
}

/* ── Import/Export area ─────────────────────────── */
.import-export {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ── Confirm dialog ─────────────────────────────── */
.confirm-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* ── Loading spinner ────────────────────────────── */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--text);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* ── Hidden ─────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Tags ───────────────────────────────────────── */
.card-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.tag {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--bg-secondary);
  color: var(--text-muted);
  border: 1px solid var(--border);
}