/* MeshBay Web Client — Phase 9.6 */

/* ── Theme variables ──────────────────────────────────────────────────────── */

:root, .theme-light {
  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-raised: #f1f5f9;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-dim: #94a3b8;
  --border: #e2e8f0;
  --border-focus: #0ea5e9;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --accent-text: #ffffff;
  --error: #ef4444;
  --error-bg: #fef2f2;
  --success: #22c55e;
  --nav-bg: #0f172a;
  --nav-text: #e2e8f0;
  --nav-brand: #38bdf8;
  --sidebar-bg: #f1f5f9;
  --sidebar-hover: #e2e8f0;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.theme-dark {
  --bg-base: #0f172a;
  --bg-surface: #1e293b;
  --bg-raised: #334155;
  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-dim: #64748b;
  --border: #334155;
  --error-bg: #450a0a;
  --nav-bg: #020617;
  --sidebar-bg: #1e293b;
  --sidebar-hover: #334155;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* ── Reset ────────────────────────────────────────────────────────────────── */

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

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg-base);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ── Navigation ───────────────────────────────────────────────────────────── */

.nav {
  background: var(--nav-bg);
  color: var(--nav-text);
  padding: 0 16px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-left, .nav-right { display: flex; align-items: center; gap: 12px; }

.nav-brand {
  color: var(--nav-brand);
  font-weight: 700;
  font-size: 1.15em;
  text-decoration: none;
}
.nav-brand:hover { text-decoration: none; }

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--nav-text);
  font-size: 1.4em;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
}

.nav-user { color: var(--text-dim); font-size: 0.9em; }

.nav-theme {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--nav-text);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1.1em;
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-theme:hover { border-color: rgba(255, 255, 255, 0.3); background: none; }

.nav-btn {
  background: rgba(255, 255, 255, 0.1);
  color: var(--nav-text);
  border: none;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.85em;
  cursor: pointer;
  text-decoration: none;
}
.nav-btn:hover { background: rgba(255, 255, 255, 0.18); text-decoration: none; }

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

.layout { display: flex; min-height: calc(100vh - 52px); }

/* ── Sidebar ──────────────────────────────────────────────────────────────── */

.sidebar {
  width: 240px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 16px 0;
  flex-shrink: 0;
  overflow-y: auto;
}

.sidebar-section { padding: 0 12px; margin-bottom: 24px; }

.sidebar-heading {
  font-size: 0.7em;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  padding: 4px 8px;
  margin-bottom: 4px;
  font-weight: 600;
}

.sidebar-item {
  display: block;
  padding: 7px 12px;
  border-radius: 6px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.9em;
  transition: background 0.12s;
}
.sidebar-item:hover { background: var(--sidebar-hover); text-decoration: none; }
.sidebar-item.active { background: var(--accent); color: var(--accent-text); }

.sidebar-empty {
  padding: 8px 12px;
  color: var(--text-dim);
  font-size: 0.85em;
  font-style: italic;
}

/* ── Main content ─────────────────────────────────────────────────────────── */

.main {
  flex: 1;
  padding: 24px 32px;
  max-width: 960px;
  min-width: 0;
}

.main h2 { font-size: 1.25em; margin-bottom: 16px; }

.page-message {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ── Page center (login / register) ───────────────────────────────────────── */

.page-center {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 52px);
  padding: 24px;
}

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

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.login-card { width: 100%; max-width: 380px; }
.login-card h2 { text-align: center; margin-bottom: 20px; }
.login-card form { display: flex; flex-direction: column; gap: 12px; }

.login-footer {
  text-align: center;
  margin-top: 16px;
  font-size: 0.85em;
  color: var(--text-dim);
}

/* ── Form elements ────────────────────────────────────────────────────────── */

input[type="text"],
input[type="password"],
input[type="email"] {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-base);
  color: var(--text);
  font-size: 0.95em;
  width: 100%;
  transition: border-color 0.15s;
}
input:focus { outline: none; border-color: var(--border-focus); }

button {
  padding: 10px 20px;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: 6px;
  font-size: 0.95em;
  cursor: pointer;
  transition: background 0.15s;
}
button:hover { background: var(--accent-hover); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Alerts ───────────────────────────────────────────────────────────────── */

.error-msg {
  background: var(--error-bg);
  color: var(--error);
  border: 1px solid var(--error);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 0.85em;
}

/* ── Group cards (9.7 prep) ───────────────────────────────────────────────── */

.group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.group-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.12s, box-shadow 0.12s;
  text-decoration: none;
  color: var(--text);
  display: block;
}
.group-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}
.group-card h3 { font-size: 1em; margin-bottom: 4px; }

.badge {
  display: inline-block;
  background: var(--bg-raised);
  color: var(--text-secondary);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75em;
}

/* ── Group page header ───────────────────────────────────────────────────── */

.group-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.group-header h2 { margin-bottom: 0; }

.status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 0.75em;
  font-weight: 500;
}
.status-ok   { background: #16a34a20; color: var(--success); }
.status-err  { background: var(--error-bg); color: var(--error); }
.status-busy { background: var(--bg-raised); color: var(--text-secondary); }

/* ── Group tabs ──────────────────────────────────────────────────────────── */

.group-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--border);
}

.group-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  padding: 8px 20px;
  color: var(--text-secondary);
  font-size: 0.9em;
  font-weight: 500;
  cursor: pointer;
  border-radius: 0;
  transition: color 0.12s, border-color 0.12s;
}
.group-tab:hover { color: var(--text); background: none; }
.group-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Chat panel ──────────────────────────────────────────────────────────── */

.chat-panel {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 220px);
  min-height: 300px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.chat-empty {
  text-align: center;
  color: var(--text-dim);
  font-style: italic;
  padding: 40px 16px;
}

.chat-msg {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 75%;
}

.chat-msg-own {
  align-self: flex-end;
  align-items: flex-end;
}

.chat-sender {
  font-size: 0.72em;
  color: var(--text-dim);
  margin-bottom: 2px;
  padding-left: 10px;
  font-weight: 600;
}

.chat-bubble {
  background: var(--bg-raised);
  padding: 8px 12px;
  border-radius: 12px 12px 12px 4px;
  font-size: 0.9em;
  line-height: 1.45;
  word-break: break-word;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.chat-bubble-own {
  background: var(--accent);
  color: var(--accent-text);
  border-radius: 12px 12px 4px 12px;
}

.chat-text { white-space: pre-wrap; }

.chat-time {
  font-size: 0.65em;
  color: var(--text-dim);
  white-space: nowrap;
  flex-shrink: 0;
}
.chat-bubble-own .chat-time { color: rgba(255, 255, 255, 0.6); }

.chat-input-row {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--border);
  background: var(--bg-base);
}

.chat-input {
  flex: 1;
  resize: none;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-surface);
  color: var(--text);
  font-size: 0.9em;
  font-family: inherit;
  line-height: 1.4;
  min-height: 38px;
  max-height: 100px;
}
.chat-input:focus { outline: none; border-color: var(--border-focus); }

.chat-send {
  align-self: flex-end;
  padding: 8px 16px;
  font-size: 0.85em;
  border-radius: 8px;
  white-space: nowrap;
}

/* ── File toolbar ────────────────────────────────────────────────────────── */

.file-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 2px;
  font-size: 0.85em;
  min-width: 0;
  flex-wrap: wrap;
}
.crumb {
  cursor: pointer;
  color: var(--accent);
  padding: 2px 4px;
  border-radius: 4px;
}
.crumb:hover { background: var(--bg-raised); text-decoration: none; }
.crumb-sep { color: var(--text-dim); }

.file-search {
  max-width: 220px;
  padding: 6px 10px !important;
  font-size: 0.85em !important;
}

/* ── File table ──────────────────────────────────────────────────────────── */

.file-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9em;
}

.file-table th {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 2px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.8em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
  user-select: none;
}

.file-table th.sortable { cursor: pointer; }
.file-table th.sortable:hover { color: var(--text); }

.file-row td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.file-row:hover { background: var(--bg-raised); }
.dir-row { cursor: pointer; }
.dir-row td { font-weight: 500; }

.file-name {
  word-break: break-word;
  min-width: 0;
}
.file-size { white-space: nowrap; color: var(--text-secondary); }
.file-type { color: var(--text-dim); }
.file-date { white-space: nowrap; color: var(--text-dim); }
.file-empty {
  text-align: center;
  padding: 24px 12px !important;
  color: var(--text-dim);
  font-style: italic;
}

/* ── Download button + progress ──────────────────────────────────────────── */

.dl-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--accent);
  width: 30px;
  height: 30px;
  border-radius: 6px;
  font-size: 0.9em;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.dl-btn:hover { background: var(--bg-raised); border-color: var(--accent); }
.dl-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.dl-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 0.85em;
}

.dl-name {
  flex-shrink: 0;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
}

.dl-progress {
  flex: 1;
  height: 6px;
  background: var(--bg-raised);
  border-radius: 3px;
  overflow: hidden;
}

.dl-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.2s;
}

.dl-pct {
  flex-shrink: 0;
  color: var(--text-secondary);
  font-size: 0.85em;
  white-space: nowrap;
}

/* ── Settings page ───────────────────────────────────────────────────────── */

.settings-section {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 16px;
}

.settings-heading {
  font-size: 0.8em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  font-weight: 600;
  margin-bottom: 12px;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
}
.settings-row + .settings-row {
  border-top: 1px solid var(--border);
}

.settings-label {
  font-size: 0.9em;
  color: var(--text);
}

.settings-value {
  font-size: 0.9em;
  color: var(--text-secondary);
}

.settings-select {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-base);
  color: var(--text);
  font-size: 0.9em;
  cursor: pointer;
  min-width: 120px;
}
.settings-select:focus { outline: none; border-color: var(--border-focus); }

/* ── Video player overlay ─────────────────────────────────────────────────── */

.video-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.video-top-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  z-index: 210;
}

.video-title {
  color: #e2e8f0;
  font-size: 0.9em;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: calc(100% - 60px);
}

.video-close {
  background: rgba(255, 255, 255, 0.12);
  border: none;
  color: #e2e8f0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.2em;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.video-close:hover { background: rgba(255, 255, 255, 0.25); }

.video-container {
  width: 100%;
  max-width: min(90vw, 1280px);
  max-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-container video {
  width: 100%;
  max-height: calc(100vh - 120px);
  border-radius: 4px;
  outline: none;
}

.video-loading {
  text-align: center;
  color: #94a3b8;
}

.video-loading-label {
  margin-bottom: 16px;
  font-size: 0.95em;
}

.video-progress-bar {
  width: min(400px, 80vw);
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

.video-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.15s;
}

.video-progress-text {
  font-size: 0.8em;
  color: #64748b;
}

.video-error {
  color: var(--error);
  font-size: 0.9em;
  text-align: center;
  max-width: 400px;
}

.play-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--success);
  width: 30px;
  height: 30px;
  border-radius: 6px;
  font-size: 0.85em;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-right: 4px;
}
.play-btn:hover { background: var(--bg-raised); border-color: var(--success); }
.play-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* ── Admin panel ─────────────────────────────────────────────────────────── */

.admin-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 2px solid var(--border);
  flex-wrap: wrap;
}

.admin-tab {
  padding: 8px 16px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 0.9em;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color 0.15s, border-color 0.15s;
}
.admin-tab:hover { color: var(--text); }
.admin-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}
.stat-card .stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-card .stat-label {
  font-size: 0.8em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  margin-top: 4px;
}

.admin-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.admin-search {
  flex: 1;
  min-width: 180px;
  max-width: 300px;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-base);
  color: var(--text);
  font-size: 0.9em;
}
.admin-search:focus { outline: none; border-color: var(--border-focus); }

.admin-select {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-base);
  color: var(--text);
  font-size: 0.85em;
  cursor: pointer;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88em;
}
.admin-table th {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 2px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.8em;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.admin-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.admin-table tr:hover { background: var(--bg-raised); }
.admin-table .admin-empty {
  text-align: center;
  padding: 24px;
  color: var(--text-dim);
  font-style: italic;
}

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

.admin-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--bg-base);
  color: var(--text);
  font-size: 0.82em;
  cursor: pointer;
  white-space: nowrap;
}
.admin-btn:hover { border-color: var(--accent); color: var(--accent); }
.admin-btn.danger { color: var(--error); }
.admin-btn.danger:hover { border-color: var(--error); }
.admin-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.admin-role-select {
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-base);
  color: var(--text);
  font-size: 0.85em;
  cursor: pointer;
}

.admin-detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
}

.admin-detail-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  min-width: 340px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
}

.admin-detail-card h3 {
  margin-bottom: 16px;
  font-size: 1.1em;
}

.admin-detail-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.9em;
}
.admin-detail-row + .admin-detail-row {
  border-top: 1px solid var(--border);
}
.admin-detail-label { color: var(--text-secondary); }
.admin-detail-value { font-weight: 500; }

.admin-load-more {
  display: block;
  margin: 16px auto;
  padding: 8px 24px;
}

.blocklist-form {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.blocklist-form input {
  flex: 1;
  min-width: 180px;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-base);
  color: var(--text);
  font-size: 0.9em;
}
.blocklist-form input:focus { outline: none; border-color: var(--border-focus); }

/* ── Overlay (mobile sidebar backdrop) ────────────────────────────────────── */

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: 52px;
  background: rgba(0, 0, 0, 0.4);
  z-index: 40;
}
.overlay.visible { display: block; }

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

@media (max-width: 768px) {
  .nav-hamburger { display: flex; }

  .sidebar {
    position: fixed;
    left: -240px;
    top: 52px;
    height: calc(100vh - 52px);
    z-index: 50;
    transition: left 0.2s;
    box-shadow: none;
  }
  .sidebar.open { left: 0; box-shadow: var(--shadow-lg); }

  .main { padding: 16px; }
  .page-center { padding: 16px; }
  .th-type, .td-type { display: none; }
  .th-date, .td-date { display: none; }
}