:root {
  --bg-primary: #071224;
  --bg-secondary: #0f223f;
  --panel: rgba(11, 27, 52, 0.82);
  --panel-border: rgba(120, 164, 231, 0.26);
  --text-main: #e9f4ff;
  --text-muted: #9ab1d8;
  --accent: #19b8c8;
  --accent-2: #2f74f9;
  --ok: #31d0aa;
  --danger: #f45d73;
  --warning: #f6b95f;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text-main);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  background: radial-gradient(circle at 15% 20%, #163a66 0%, rgba(7, 18, 36, 0.2) 38%),
    radial-gradient(circle at 80% -10%, #1a5b72 0%, rgba(7, 18, 36, 0.14) 36%),
    linear-gradient(155deg, var(--bg-primary), #060f1f 55%, #08182f 100%);
}

.app-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.26;
  background-image: linear-gradient(rgba(139, 180, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 180, 255, 0.08) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.9), transparent 86%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding: 0.72rem 1rem;
  border-bottom: 1px solid rgba(141, 180, 236, 0.22);
  backdrop-filter: blur(10px);
  background: rgba(5, 16, 33, 0.68);
}

.brand-wrap {
  display: flex;
  gap: 0.8rem;
  align-items: baseline;
}

.brand-title {
  margin: 0;
  font-size: 2rem;
  letter-spacing: 0.03em;
}

.user-pill,
.clock-pill,
.cam-chip {
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font-size: 0.84rem;
  color: var(--text-muted);
  background: rgba(17, 45, 83, 0.45);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.nav-btn,
.primary-btn,
.ghost-btn,
.logout-btn {
  border: 1px solid transparent;
  border-radius: 0.75rem;
  padding: 0.56rem 0.95rem;
  font: inherit;
  font-weight: 600;
  color: var(--text-main);
  background: rgba(29, 56, 93, 0.72);
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
  text-decoration: none;
}

.nav-btn:hover,
.primary-btn:hover,
.ghost-btn:hover,
.logout-btn:hover {
  transform: translateY(-1px);
}

.nav-btn-active,
.primary-btn {
  background: linear-gradient(135deg, var(--accent-2), #1784e6);
  border-color: rgba(140, 201, 255, 0.7);
}

.ghost-btn {
  border-color: var(--panel-border);
  background: rgba(15, 34, 63, 0.8);
}

.logout-btn {
  background: linear-gradient(135deg, #ca3758, #a91f47);
  border-color: rgba(255, 171, 190, 0.35);
}

.layout {
  position: relative;
  z-index: 1;
  padding: 0.75rem;
  display: grid;
  gap: 0.75rem;
}

.camera-card,
.playback-shell,
.login-card,
.segments-panel,
.player-panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.live-view {
  display: grid;
  gap: 0.7rem;
}

.view-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.2rem 0.15rem;
}

.view-toolbar h2 {
  margin: 0.08rem 0 0;
  font-size: 1.2rem;
}

.eyebrow,
.camera-label {
  color: var(--accent);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.view-toolbar-actions,
.layout-switcher {
  display: flex;
  align-items: center;
}

.view-toolbar-actions {
  gap: 0.7rem;
}

.camera-count {
  color: var(--text-muted);
  font-size: 0.82rem;
}

.layout-switcher {
  padding: 0.2rem;
  gap: 0.18rem;
  border: 1px solid var(--panel-border);
  border-radius: 0.7rem;
  background: rgba(7, 19, 38, 0.72);
}

.layout-btn,
.focus-btn {
  border: 0;
  color: var(--text-muted);
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.layout-btn {
  border-radius: 0.5rem;
  padding: 0.35rem 0.55rem;
  font-size: 0.76rem;
  font-weight: 700;
}

.layout-btn:hover,
.layout-btn-active {
  color: var(--text-main);
  background: rgba(47, 116, 249, 0.72);
}

.camera-grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  align-items: start;
}

.camera-grid[data-layout="2"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.camera-grid[data-layout="3"] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.camera-grid[data-layout="4"] {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.camera-card {
  overflow: hidden;
  min-width: 0;
  scroll-margin-top: 5.5rem;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.camera-card:hover {
  border-color: rgba(98, 175, 255, 0.46);
}

.camera-grid.has-focused .camera-card.is-focused {
  grid-column: 1 / -1;
  order: -1;
  border-color: rgba(45, 188, 207, 0.72);
  box-shadow: 0 20px 54px rgba(0, 0, 0, 0.46);
}

.camera-grid.has-focused .camera-card.is-focused .video-wrap {
  aspect-ratio: 16 / 7;
  max-height: 72vh;
}

.camera-head,
.camera-foot {
  padding: 0.58rem 0.72rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.camera-head {
  border-bottom: 1px solid rgba(120, 164, 231, 0.18);
}

.cam-title-wrap {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.camera-label {
  display: block;
  margin-bottom: 0.06rem;
  color: #6f91bd;
}

.cam-title-wrap h3 {
  margin: 0;
  font-size: 0.98rem;
  font-weight: 600;
}

.focus-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 0.55rem;
  padding: 0.35rem 0.5rem;
  font-size: 0.75rem;
}

.focus-btn:hover,
.focus-btn[aria-pressed="true"] {
  color: var(--text-main);
  background: rgba(34, 85, 143, 0.55);
}

.focus-btn svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.live-dot {
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 999px;
  background: var(--ok);
  box-shadow: 0 0 0 0 rgba(49, 208, 170, 0.7);
  animation: pulse 1.8s infinite;
}

.video-wrap {
  aspect-ratio: 16 / 9;
  background: #000;
}

.stream-state {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.state-dot {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--ok);
}

.stream-error {
  color: #ff9aab;
}

.stream-error .state-dot {
  background: var(--danger);
}

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

.empty-state {
  grid-column: 1 / -1;
  padding: 1.5rem;
  border: 1px dashed rgba(151, 194, 255, 0.45);
  border-radius: 1rem;
  background: rgba(12, 30, 56, 0.7);
}

.empty-state h3 {
  margin: 0 0 0.35rem;
}

.empty-state p {
  margin: 0;
  color: var(--text-muted);
}

.playback-shell {
  padding: 1rem;
  display: grid;
  gap: 0.95rem;
}

.playback-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  align-items: end;
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field label {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.field input,
.field select {
  width: 100%;
  border-radius: 0.65rem;
  border: 1px solid rgba(152, 198, 255, 0.36);
  background: rgba(10, 26, 51, 0.92);
  color: var(--text-main);
  padding: 0.56rem 0.65rem;
  font: inherit;
}

.playback-grid {
  display: grid;
  gap: 0.95rem;
  grid-template-columns: 1.7fr 1fr;
}

.player-panel,
.segments-panel {
  padding: 0.75rem;
}

.player-panel video {
  border-radius: 0.7rem;
  background: #000;
}

.video-controls {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.65rem;
  padding: 0.5rem 0.6rem;
  border: 1px solid rgba(126, 174, 236, 0.2);
  border-radius: 0.7rem;
  background: rgba(5, 16, 33, 0.72);
}

.video-control-btn {
  width: 2rem;
  height: 2rem;
  flex: 0 0 2rem;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--accent-2), #1784e6);
  cursor: pointer;
}

.video-seek {
  width: 100%;
  accent-color: var(--accent);
  cursor: pointer;
}

.video-time {
  min-width: 2.8rem;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.download-row {
  margin-top: 0.7rem;
}

.download-row a {
  display: inline-block;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(130deg, #219b86, #0b7a68);
  border: 1px solid rgba(148, 241, 223, 0.45);
  border-radius: 0.65rem;
  padding: 0.52rem 0.8rem;
}

.segments-panel h3 {
  margin: 0 0 0.65rem;
}

#segments {
  margin: 0;
  padding: 0;
  list-style: none;
  max-height: 28rem;
  overflow: auto;
  display: grid;
  gap: 0.55rem;
}

#segments li {
  border: 1px solid rgba(151, 192, 255, 0.2);
  background: rgba(8, 20, 40, 0.75);
  border-radius: 0.6rem;
  padding: 0.55rem 0.65rem;
}

#segments li.segment-item {
  cursor: pointer;
}

#segments li.segment-item:hover {
  border-color: rgba(125, 194, 250, 0.56);
  background: rgba(19, 49, 87, 0.75);
}

#segments li.segment-error {
  border-color: rgba(244, 93, 115, 0.42);
  color: #ffdbe1;
  background: rgba(115, 28, 46, 0.4);
}

#segments li.segment-muted {
  color: var(--text-muted);
}

.segment-active {
  border-color: rgba(118, 197, 255, 0.8) !important;
  background: rgba(30, 92, 156, 0.65) !important;
}

.hidden {
  display: none !important;
}

.login-page {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-shell {
  width: min(100%, 460px);
}

.login-card {
  padding: 1.2rem;
}

.login-head h1 {
  margin: 0;
  font-size: 2rem;
}

.login-head p {
  margin: 0.35rem 0 1rem;
  color: var(--text-muted);
}

.login-form {
  display: grid;
  gap: 0.75rem;
}

.login-btn {
  width: 100%;
}

.form-alert {
  border-radius: 0.65rem;
  border: 1px solid rgba(255, 160, 177, 0.5);
  background: rgba(133, 31, 52, 0.55);
  color: #ffdce2;
  padding: 0.55rem 0.65rem;
  margin-bottom: 0.8rem;
}

.login-note {
  margin: 0.95rem 0 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.fade-in {
  animation: fadeInUp 320ms ease;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(49, 208, 170, 0.75);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(49, 208, 170, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(49, 208, 170, 0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .playback-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar-actions {
    flex-wrap: wrap;
  }

  .brand-title {
    font-size: 1.65rem;
  }

  .view-toolbar {
    align-items: flex-end;
  }

  .camera-count {
    display: none;
  }

  .camera-grid,
  .camera-grid[data-layout="2"],
  .camera-grid[data-layout="3"],
  .camera-grid[data-layout="4"] {
    grid-template-columns: 1fr;
  }

  .camera-grid.has-focused .camera-card.is-focused .video-wrap {
    aspect-ratio: 16 / 9;
  }
}