/* ============================================================
   Tarang Darshini — Premium Dark Admin Design System
   ============================================================ */

/* Google Fonts are loaded via <link> tags in HTML, not @import */

/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
  --bg:          #0f172a;
  --bg2:         #1e293b;
  --bg3:         #334155;
  --surface:     rgba(30, 41, 59, 0.85);
  --border:      rgba(99, 102, 241, 0.18);
  --accent:      #6366f1;
  --accent-h:    #818cf8;
  --accent-d:    #4f46e5;
  --success:     #22c55e;
  --warning:     #f59e0b;
  --danger:      #ef4444;
  --info:        #38bdf8;
  --text:        #e2e8f0;
  --text-muted:  #94a3b8;
  --text-dim:    #64748b;
  --sidebar-w:   240px;
  --topbar-h:    64px;
  --radius:      12px;
  --radius-sm:   8px;
  --shadow:      0 4px 24px rgba(0,0,0,0.4);
  --shadow-sm:   0 2px 8px  rgba(0,0,0,0.25);
  --transition:  0.2s ease;
}

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}
h1 { font-size: 1.8rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h5 { font-size: 1rem; }
p  { color: var(--text-muted); }

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

code {
  font-family: 'Fira Mono', 'Cascadia Code', monospace;
  font-size: 0.82rem;
  background: var(--bg3);
  color: var(--info);
  padding: 2px 7px;
  border-radius: 4px;
  word-break: break-all;
}

/* ── Layout Shell ──────────────────────────────────────────── */
.td-shell {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────────── */
.td-sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 100;
  transition: transform var(--transition);
}

.td-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px;
  border-bottom: 1px solid var(--border);
  min-height: var(--topbar-h);
}

.td-sidebar-brand .brand-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent-d));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}

.td-sidebar-brand .brand-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.td-sidebar-brand .brand-sub {
  font-size: 0.7rem;
  color: var(--text-dim);
  font-weight: 400;
}

.td-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}

.td-nav-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  padding: 14px 10px 6px;
}

.td-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.td-nav a:hover {
  background: rgba(99, 102, 241, 0.12);
  color: var(--accent-h);
}

.td-nav a.active {
  background: rgba(99, 102, 241, 0.2);
  color: var(--accent-h);
}

.td-nav a svg { flex-shrink: 0; opacity: 0.7; }
.td-nav a:hover svg, .td-nav a.active svg { opacity: 1; }

.td-sidebar-footer {
  padding: 14px 10px;
  border-top: 1px solid var(--border);
}

.td-sidebar-footer a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: 0.875rem;
  font-weight: 500;
  transition: background var(--transition);
}
.td-sidebar-footer a:hover { background: rgba(239,68,68,0.12); color: #fca5a5; }

/* ── Main Content ──────────────────────────────────────────── */
.td-main {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.td-topbar {
  height: var(--topbar-h);
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.td-topbar-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.td-topbar-user {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.82rem; color: var(--text-muted);
}

.td-topbar-avatar {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-d));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; font-weight: 700; color: #fff;
}

.td-content {
  padding: 28px;
  flex: 1;
}

/* ── Cards ─────────────────────────────────────────────────── */
.td-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.td-card-sm { padding: 16px; }

.td-card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.td-card-desc { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 16px; }

/* ── Stat Cards ────────────────────────────────────────────── */
.td-stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.td-stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  display: flex; align-items: center; gap: 16px;
  transition: border-color var(--transition), transform var(--transition);
}
.td-stat-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.td-stat-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.td-stat-icon.indigo  { background: rgba(99,102,241,0.18); color: var(--accent-h); }
.td-stat-icon.green   { background: rgba(34,197,94,0.15);  color: var(--success); }
.td-stat-icon.amber   { background: rgba(245,158,11,0.15); color: var(--warning); }
.td-stat-icon.sky     { background: rgba(56,189,248,0.15); color: var(--info); }

.td-stat-val  { font-size: 1.6rem; font-weight: 700; color: var(--text); line-height: 1; }
.td-stat-lbl  { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }

/* ── Action Cards (Dashboard) ──────────────────────────────── */
.td-action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.td-action-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex; flex-direction: column; gap: 12px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}
.td-action-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(99,102,241,0.18);
}
.td-action-card-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}

/* ── Forms ─────────────────────────────────────────────────── */
.td-form-group { margin-bottom: 18px; }

.td-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.td-input, .td-textarea, .td-select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--bg3);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 10px 14px;
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
}
.td-input:focus, .td-textarea:focus, .td-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.18);
}
.td-input::placeholder, .td-textarea::placeholder { color: var(--text-dim); }
.td-textarea { resize: vertical; min-height: 80px; }
.td-select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 12px; padding-right: 36px; cursor: pointer; }
option { background: var(--bg2); }

/* ── Buttons ───────────────────────────────────────────────── */
.td-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem; font-weight: 500; font-family: inherit;
  border: none; cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.td-btn:active { transform: scale(0.97); }

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

.td-btn-success  { background: var(--success); color: #fff; }
.td-btn-success:hover  { background: #16a34a; color: #fff; }

.td-btn-danger   { background: var(--danger); color: #fff; }
.td-btn-danger:hover   { background: #b91c1c; color: #fff; }

.td-btn-warning  { background: var(--warning); color: #1a1a1a; }
.td-btn-warning:hover  { background: #d97706; color: #1a1a1a; }

.td-btn-info     { background: var(--info); color: #0f172a; }
.td-btn-info:hover     { background: #0ea5e9; color: #0f172a; }

.td-btn-ghost    { background: transparent; color: var(--text-muted); border: 1px solid var(--bg3); }
.td-btn-ghost:hover    { background: var(--bg3); color: var(--text); }

.td-btn-sm { padding: 5px 12px; font-size: 0.8rem; border-radius: 6px; }
.td-btn-icon { padding: 7px; border-radius: 8px; }

/* ── Alerts ────────────────────────────────────────────────── */
.td-alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  margin-bottom: 18px;
  display: flex; align-items: flex-start; gap: 10px;
  border-left: 4px solid;
}
.td-alert-success { background: rgba(34,197,94,0.12);  border-color: var(--success); color: #86efac; }
.td-alert-danger  { background: rgba(239,68,68,0.12);  border-color: var(--danger);  color: #fca5a5; }
.td-alert-info    { background: rgba(56,189,248,0.12); border-color: var(--info);    color: #7dd3fc; }
.td-alert-warning { background: rgba(245,158,11,0.12); border-color: var(--warning); color: #fcd34d; }

/* ── Tables ────────────────────────────────────────────────── */
.td-table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }

.td-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.td-table thead { background: var(--bg3); }
.td-table th {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  white-space: nowrap;
  position: sticky; top: 0; background: var(--bg3);
}
.td-table td {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}
.td-table tbody tr { transition: background var(--transition); }
.td-table tbody tr:hover { background: rgba(99,102,241,0.06); }

/* ── Badge / Chip ──────────────────────────────────────────── */
.td-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.73rem; font-weight: 600;
  padding: 3px 9px;
  border-radius: 99px;
}
.td-badge-indigo { background: rgba(99,102,241,0.18); color: var(--accent-h); }
.td-badge-green  { background: rgba(34,197,94,0.15);  color: #86efac; }

/* ── API Key Display ───────────────────────────────────────── */
.td-apikey {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg);
  border: 1px solid var(--bg3);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  max-width: 100%;
}
.td-apikey code {
  background: none; padding: 0;
  font-size: 0.78rem; color: var(--info);
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.td-copy-btn {
  background: none; border: none; cursor: pointer;
  color: var(--text-dim); padding: 2px; border-radius: 4px;
  transition: color var(--transition);
  flex-shrink: 0;
}
.td-copy-btn:hover { color: var(--accent-h); }
.td-copy-btn.copied { color: var(--success); }

/* ── Page Header ───────────────────────────────────────────── */
.td-page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 24px; flex-wrap: wrap; gap: 12px;
}
.td-page-header h2 { margin: 0; }

/* ── Breadcrumb / Back link ────────────────────────────────── */
.td-back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem; color: var(--text-muted); margin-bottom: 18px;
  transition: color var(--transition);
}
.td-back:hover { color: var(--accent-h); }

/* ── Channel Chooser Cards ─────────────────────────────────── */
.td-channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}
.td-channel-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  cursor: pointer;
  transition: border-color var(--transition), transform var(--transition);
  text-decoration: none;
  display: block;
}
.td-channel-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--text);
}
.td-channel-item h5 { color: var(--text); margin-bottom: 4px; }
.td-channel-item p  { font-size: 0.82rem; margin: 0; }

/* ── Login Page ────────────────────────────────────────────── */
.td-login-bg {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99,102,241,0.25), transparent),
    radial-gradient(ellipse 50% 40% at 85% 90%, rgba(79,70,229,0.18), transparent);
  padding: 24px;
}

.td-login-card {
  width: 100%; max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 40px 36px;
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.55);
  animation: fadeSlideUp 0.4s ease both;
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes shakeX {
  0%,100%{ transform: translateX(0); }
  20%    { transform: translateX(-8px); }
  40%    { transform: translateX(8px); }
  60%    { transform: translateX(-5px); }
  80%    { transform: translateX(5px); }
}
.td-login-card.shake { animation: shakeX 0.45s ease; }

.td-login-logo {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--accent), var(--accent-d));
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  box-shadow: 0 6px 24px rgba(99,102,241,0.35);
}
.td-login-title {
  text-align: center; margin-bottom: 6px;
  font-size: 1.4rem; font-weight: 700;
}
.td-login-sub {
  text-align: center; font-size: 0.82rem;
  color: var(--text-muted); margin-bottom: 28px;
}
.td-login-card .td-btn-primary {
  width: 100%; padding: 11px;
  font-size: 0.95rem; font-weight: 600;
  background: linear-gradient(135deg, var(--accent), var(--accent-d));
  box-shadow: 0 4px 16px rgba(99,102,241,0.35);
  transition: box-shadow var(--transition), transform var(--transition);
}
.td-login-card .td-btn-primary:hover {
  box-shadow: 0 6px 24px rgba(99,102,241,0.5);
  transform: translateY(-1px);
}

/* ── Utilities ─────────────────────────────────────────────── */
.mt-0  { margin-top: 0 !important; }
.mb-0  { margin-bottom: 0 !important; }
.mb-4  { margin-bottom: 16px !important; }
.mb-6  { margin-bottom: 24px !important; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.flex  { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); font-size: 0.82rem; }
.text-sm { font-size: 0.82rem; }
.w-full { width: 100%; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Field Table (fields_manage) ───────────────────────────── */
.td-field-row td { vertical-align: middle; }
.td-field-input-wrap { display: flex; align-items: center; gap: 8px; }
.td-field-input-wrap .td-input { max-width: 260px; }

/* ── Actions Bar ───────────────────────────────────────────── */
.td-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .td-sidebar { transform: translateX(-100%); }
  .td-sidebar.open { transform: translateX(0); }
  .td-main { margin-left: 0; }
  .td-content { padding: 16px; }
  .td-topbar { padding: 0 16px; }
  .td-login-card { padding: 28px 22px; }
}