/* HDOnTap Design System v1.0 */

:root {
  /* Backgrounds */
  --bg-primary:   #0a0e14;
  --bg-secondary: #12161e;
  --bg-tertiary:  #1a1f2b;

  /* Accent Colors */
  --accent-orange:        #f47b20;
  --accent-orange-bright: #ff8c3a;
  --accent-cyan:          #00d4ff;
  --accent-red:           #ff3366;
  --accent-yellow:        #ffcc00;

  /* Text */
  --text-primary:   #e6e8eb;
  --text-secondary: #8b92a0;
  --text-dim:       #5a6070;

  /* UI */
  --border: #252a35;
  --shadow: rgba(244, 123, 32, 0.1);

  /* Typography */
  --font-ui:   'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Border Radius */
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 4px;

  /* Transitions */
  --transition: all 0.3s ease;
}

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

html, body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
}

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

/* ---------- Layout ---------- */
.page-container {
  max-width: 1800px;
  margin: 0 auto;
  padding: 2rem;
}

.page-container--narrow {
  max-width: 800px;
}

.page-container--auth {
  max-width: 460px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--border);
}

.page-header__brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.page-header__mark {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-bright));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--bg-primary);
  box-shadow: 0 4px 20px var(--shadow);
  flex-shrink: 0;
}

.page-title {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1;
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-subtitle {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-top: 0.35rem;
}

.page-header__user {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.page-header__username {
  color: var(--text-primary);
}

.layout-main {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
}

.layout-stack {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.layout-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.layout-3col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }

/* ---------- Panels ---------- */
.panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 4px 20px var(--shadow);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

.panel-header__title {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.panel-header__count {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  background: rgba(0, 212, 255, 0.12);
  border: 1px solid rgba(0, 212, 255, 0.25);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-bright));
  color: var(--bg-primary);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(244, 123, 32, 0.3);
  color: var(--bg-primary);
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s ease;
}
.btn-primary:hover::before { left: 100%; }

.btn-secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.8rem;
  padding: 0.5rem 1.2rem;
}
.btn-secondary:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  box-shadow: 0 4px 12px rgba(244, 123, 32, 0.15);
  transform: translateY(-1px);
}

.btn-danger {
  background: linear-gradient(135deg, var(--accent-red), #ff5577);
  color: var(--bg-primary);
}
.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 51, 102, 0.3);
  color: var(--bg-primary);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

.btn-block {
  width: 100%;
}

/* ---------- Inputs ---------- */
.input,
input[type="text"],
input[type="password"],
input[type="number"],
input[type="email"],
select,
textarea {
  width: 100%;
  background: var(--bg-tertiary);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: var(--transition);
  outline: none;
}

textarea { resize: vertical; min-height: 100px; }

.input::placeholder,
input::placeholder,
textarea::placeholder {
  color: var(--text-dim);
}

.input:focus,
input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px rgba(244, 123, 32, 0.1);
}

.form-field {
  margin-bottom: 1.25rem;
}

.form-field__label,
form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.form-field__hint,
.helptext {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 0.4rem;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.form-section {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-section__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.form-section__hint {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
}

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

/* Style Django's default form rendering (form.as_p) */
form p {
  margin-bottom: 1.25rem;
}

.errorlist {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
}
.errorlist li {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-red);
  background: rgba(255, 51, 102, 0.1);
  border-left: 3px solid var(--accent-red);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  margin-top: 0.5rem;
}

/* ---------- Tables ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
}

.data-table thead th {
  text-align: left;
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.data-table thead th:first-child { border-top-left-radius: var(--radius-sm); }
.data-table thead th:last-child  { border-top-right-radius: var(--radius-sm); }

.data-table tbody td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-primary);
  vertical-align: top;
}

.data-table tbody tr {
  transition: var(--transition);
}
.data-table tbody tr:hover {
  background: rgba(244, 123, 32, 0.03);
}
.data-table tbody tr:last-child td { border-bottom: none; }

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

.cell-primary {
  font-family: var(--font-ui);
  font-weight: 600;
  color: var(--text-primary);
  display: block;
  margin-bottom: 0.25rem;
}

.cell-secondary {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: block;
}

.cell-dim {
  color: var(--text-dim);
}

/* ---------- Status indicators ---------- */
.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
  display: inline-block;
}
.status-dot.active {
  background: var(--accent-orange);
  box-shadow: 0 0 10px var(--accent-orange);
  animation: breathe 3s ease-in-out infinite;
}
.status-dot.error {
  background: var(--accent-red);
  box-shadow: 0 0 10px var(--accent-red);
}
.status-dot.info {
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
}

.badge--mono {
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.75rem;
}

.badge-orange  { background: rgba(244,123,32,0.12); color: var(--accent-orange);  border: 1px solid rgba(244,123,32,0.25); }
.badge-cyan    { background: rgba(0,212,255,0.12);  color: var(--accent-cyan);    border: 1px solid rgba(0,212,255,0.25); }
.badge-red     { background: rgba(255,51,102,0.12); color: var(--accent-red);     border: 1px solid rgba(255,51,102,0.25); }
.badge-yellow  { background: rgba(255,204,0,0.12);  color: var(--accent-yellow);  border: 1px solid rgba(255,204,0,0.25); }
.badge-neutral { background: var(--bg-tertiary);    color: var(--text-secondary); border: 1px solid var(--border); }
.badge-empty   { background: transparent; color: var(--text-dim); border: 1px dashed var(--border); }

/* ---------- Alerts ---------- */
.alert {
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}
.alert-error {
  background: rgba(255, 51, 102, 0.1);
  border: 1px solid var(--accent-red);
  color: var(--accent-red);
}
.alert-info {
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: var(--accent-cyan);
}
.alert-warning {
  background: rgba(255, 204, 0, 0.08);
  border: 1px solid rgba(255, 204, 0, 0.3);
  color: var(--accent-yellow);
}

/* ---------- Metric cards / Codec rows ---------- */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.metric-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.65rem;
  transition: var(--transition);
}
.metric-card:hover {
  border-color: var(--accent-orange);
  box-shadow: 0 0 15px rgba(244, 123, 32, 0.1);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.metric-unit {
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-left: 0.25rem;
}

.codec-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.75rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  margin-bottom: 0.35rem;
}
.codec-row:last-child { margin-bottom: 0; }

.codec-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.codec-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-all;
  text-align: right;
}

/* ---------- Misc ---------- */
.divider { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }
.divider-heavy { border-top: 2px solid var(--border); }

.data-transfer {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.data-transfer__row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.data-transfer__icon {
  color: var(--text-dim);
  font-weight: 700;
}
.data-transfer__icon--up { color: var(--accent-orange); }
.data-transfer__icon--down { color: var(--accent-cyan); }

.last-seen { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-secondary); }
.last-seen__time { display: block; color: var(--text-primary); }
.last-seen__endpoint { display: block; font-size: 0.7rem; color: var(--text-dim); margin-top: 0.15rem; }
.last-seen__never { color: var(--text-dim); font-style: normal; }

.action-stack {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 180px;
}
.action-row {
  display: flex;
  gap: 0.4rem;
}
.action-row > .btn { flex: 1; }

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  font-family: var(--font-mono);
  color: var(--text-dim);
}
.empty-state__icon { font-size: 2rem; margin-bottom: 0.75rem; opacity: 0.6; }
.empty-state__text {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--accent-orange);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

/* ---------- Animations ---------- */
@keyframes breathe {
  0%, 100% { opacity: 1;   box-shadow: 0 0 10px var(--accent-orange); }
  50%       { opacity: 0.8; box-shadow: 0 0 20px var(--accent-orange); }
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1400px) {
  .layout-main { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .page-container { padding: 1rem; }
  .page-header { flex-direction: column; align-items: flex-start; margin-bottom: 2rem; padding-bottom: 1.5rem; }
  .page-title { font-size: 2rem; }
  .page-header__mark { width: 48px; height: 48px; font-size: 1.25rem; }
  .form-row { grid-template-columns: 1fr; }
  .form-actions { flex-direction: column; }
  .form-actions .btn { width: 100%; }
  .action-stack { min-width: 0; }
}