:root {
  --accent: #1f2937;       /* neutral dark */
  --bg: #f3f4f6;
  --panel: #ffffff;
  --border: #e5e7eb;
  --muted: #6b7280;
  --radius: 14px;
  --shadow: 0 8px 25px rgba(0,0,0,0.05);
}

body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: var(--bg);
  color: #111;
}

header {
  background: var(--panel);
  padding: 1rem 2rem;
  box-shadow: var(--shadow);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
  flex-wrap: wrap;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.top-nav a {
  color: #111;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.45rem 0.7rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.top-nav a[aria-current="page"] {
  background: #111;
  border-color: #111;
  color: white;
}

.session-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.session-bar button {
  margin-top: 0;
}

.auth-panel {
  max-width: 420px;
  margin: 8vh auto;
  background: var(--panel);
  padding: 1.8rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.account-wrap {
  padding: 2rem;
}

.account-panel {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.8rem;
}

.account-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
  margin-bottom: 1.4rem;
}

.account-heading h1 {
  margin: 0;
  font-size: 1.5rem;
}

.account-heading p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

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

.route-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  min-width: 0;
}

.route-card h2 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.copy-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.6rem;
  align-items: start;
  margin-bottom: 1rem;
}

.copy-row button {
  margin-top: 0;
  border-radius: 8px;
  white-space: nowrap;
}

.account-meta {
  margin-top: 1rem;
}

.wrap {
  width: min(1600px, calc(100% - 3rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  box-sizing: border-box;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  align-items: stretch;
  margin-bottom: 1.25rem;
}

/* VIDEO */
.camera-panel,
.preview-panel {
  min-width: 0;
  padding: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.preview-panel {
  display: flex;
  flex-direction: column;
}

.panel-heading {
  min-height: 3rem;
  margin-bottom: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.panel-heading h2 {
  margin: 0.1rem 0 0;
  font-size: 1.15rem;
  letter-spacing: -0.015em;
}

.eyebrow {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.status-pill {
  max-width: 52%;
  padding: 0.4rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #f9fafb;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.2;
  text-align: right;
}

.output-status {
  color: #1d4ed8;
  border-color: #bfdbfe;
  background: #eff6ff;
}

.video-frame {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  background: #0b0c0e;
}

.preview {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.preview-status {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  right: 1rem;
  color: white;
  font-size: 0.9rem;
  text-shadow: 0 1px 3px rgba(0,0,0,0.8);
  pointer-events: none;
}

.video-badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.3rem 0.5rem;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.58);
  color: white;
  font-size: 0.72rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
}

/* SOURCE PANEL UNDER VIDEO */
.source-panel {
  background: var(--panel);
  padding: 1.2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.source-preview {
  margin-top: 0.5rem;
  height: 160px;
  background: #111;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border);
}

.source-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.drop-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.5);
  color: white;
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.source-preview.dragging .drop-overlay {
  opacity: 1;
}

/* CONFIG */
.config-panel {
  max-width: 960px;
  margin: 0 auto;
  background: var(--panel);
  padding: 1.8rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: visible;
}

.config-panel::-webkit-scrollbar {
  width: 8px;
}

.config-panel::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border-radius: 20px;
}

/* FORM */
.config-item {
  margin-bottom: 1.4rem;
}

label {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  display: block;
}

textarea,
input[type="number"],
input[type="text"],
input[type="password"],
input[readonly],
select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fafafa;
  font-size: 0.95rem;
  transition: border 0.2s ease;
}

input[readonly] {
  color: #374151;
  overflow: hidden;
  text-overflow: ellipsis;
}

textarea:focus,
input:focus,
select:focus {
  outline: none;
  border-color: #9ca3af;
}

/* SLIDERS */
input[type="range"] {
  width: 100%;
  appearance: none;
  height: 5px;
  border-radius: 10px;
  background: #e5e7eb;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #374151;
  cursor: pointer;
}

.value {
  font-weight: 600;
  color: #374151;
}

/* BUTTON */
button {
  margin-top: 1rem;
  padding: 0.7rem 1.2rem;
  background: #111;
  color: white;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

button:hover {
  opacity: 0.85;
}

.button-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.button-row button {
  margin-top: 0.4rem;
}

.preset-tools {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  margin-bottom: 1.4rem;
}

.inline-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.status {
  color: var(--muted);
}

.config-row {
  display: grid;
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.camera-panel {
  display: flex;
  flex-direction: column;
}

.camera-selectors {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.camera-selectors label {
  display: grid;
  gap: 0.35rem;
}

.local-preview {
  background: #111;
}

.camera-actions {
  margin-top: 0.4rem;
}

.secondary-button {
  background: #e5e7eb;
  color: #111827;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.config-row.two-cols {
  grid-template-columns: 1fr 1fr;
}

.config-row.three-cols {
  grid-template-columns: 1fr 1fr 1fr;
}

/* Make sliders tighter inside rows */
.config-row .config-item {
  margin-bottom: 0;
}

/* Toggle row */
.toggle-row {
  align-items: stretch;
}

.toggle-btn {
  display: flex;
}

.toggle-btn span {
  width: 100%;
  padding: 0.8rem;
  text-align: center;
  border-radius: 12px;
  border: 1px solid #ddd;
  background: #f9f9f9;
  transition: all 0.2s ease;
  cursor: pointer;
}

.toggle-btn input {
  display: none;
}

.toggle-btn input:checked + span {
  background: #111;
  color: white;
  border-color: #111;
}

.toggle-btn.danger input:checked + span {
  background: #000;
}

/* Responsive fallback */
@media (max-width: 900px) {
  .config-row.two-cols,
  .config-row.three-cols,
  .route-grid {
    grid-template-columns: 1fr;
  }

  .copy-row {
    grid-template-columns: 1fr;
  }

  .camera-selectors {
    grid-template-columns: 1fr;
  }
}
/* RESPONSIVE */
@media (max-width: 1024px) {
  .wrap {
    width: min(100% - 2rem, 900px);
  }

  .media-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  header {
    padding: 0.85rem 1rem;
  }

  .wrap {
    width: calc(100% - 1rem);
    padding-top: 0.75rem;
  }

  .camera-panel,
  .preview-panel,
  .config-panel {
    padding: 0.8rem;
  }

  .panel-heading {
    align-items: flex-start;
  }

  .status-pill {
    max-width: 58%;
  }
}