:root {
  --bg-0: #0b1220;
  --bg-1: #132036;
  --bg-2: #1b2d4a;
  --ink: #f3f6fb;
  --muted: #9aadc6;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #2f9eef;
  --accent-strong: #1f7fca;
  --danger: #e35d5d;
  --ok: #3ecf8e;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --radius: 18px;
  --font: "DM Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg-0);
}

body {
  min-height: 100vh;
}

button,
input {
  font: inherit;
}

code {
  font-family: var(--mono);
  font-size: 0.92em;
  color: #d7ebff;
}

.auth-view,
.host-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.auth-atmosphere {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at 18% 20%, rgba(47, 158, 239, 0.28), transparent 42%),
    radial-gradient(circle at 82% 18%, rgba(62, 207, 142, 0.16), transparent 36%),
    radial-gradient(circle at 50% 90%, rgba(27, 45, 74, 0.9), transparent 55%),
    linear-gradient(160deg, #07101d 0%, #12233b 48%, #0a1628 100%);
  filter: saturate(1.1);
  animation: drift 18s ease-in-out infinite alternate;
}

.host-atmosphere {
  background:
    radial-gradient(circle at 70% 25%, rgba(47, 158, 239, 0.22), transparent 40%),
    radial-gradient(circle at 20% 70%, rgba(255, 196, 86, 0.12), transparent 35%),
    linear-gradient(150deg, #08111d, #13253d 55%, #0c1728);
}

@keyframes drift {
  from {
    transform: translate3d(-1.5%, -1%, 0) scale(1.02);
  }
  to {
    transform: translate3d(1.5%, 1.5%, 0) scale(1.06);
  }
}

.auth-panel,
.host-panel {
  position: relative;
  width: min(100%, 440px);
  padding: 36px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(12, 20, 34, 0.72);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  animation: rise 0.55s ease both;
}

.host-panel {
  width: min(100%, 560px);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.brand,
.session-brand {
  margin: 0 0 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
}

h1,
h2 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(1.8rem, 4vw, 2.25rem);
  line-height: 1.1;
}

.auth-sub {
  margin: 12px 0 24px;
  color: var(--muted);
  line-height: 1.5;
}

.auth-form,
.host-actions {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.9rem;
  color: var(--muted);
}

.field input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  padding: 14px 14px;
  outline: none;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.field input:focus {
  border-color: rgba(47, 158, 239, 0.7);
  background: rgba(47, 158, 239, 0.08);
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.15s ease, background 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn.primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
  color: #fff;
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn.danger {
  background: rgba(227, 93, 93, 0.18);
  color: #ffd5d5;
  border: 1px solid rgba(227, 93, 93, 0.4);
}

.auth-error,
.host-message {
  margin: 0;
  min-height: 1.25em;
  color: #ffb4b4;
  font-size: 0.92rem;
}

.host-message {
  margin-top: 18px;
  color: var(--muted);
}

.host-hint {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--line);
}

.status-pill.online {
  color: #baf8d8;
  background: rgba(62, 207, 142, 0.12);
  border-color: rgba(62, 207, 142, 0.35);
}

.status-pill.offline {
  color: #ffd0d0;
  background: rgba(227, 93, 93, 0.12);
  border-color: rgba(227, 93, 93, 0.3);
}

.preview-wrap {
  margin-top: 18px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #000;
  aspect-ratio: 16 / 10;
}

.preview-wrap video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.session-view {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  background:
    linear-gradient(180deg, #0a121f 0%, #101b2c 100%);
}

.session-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 14, 24, 0.92);
  backdrop-filter: blur(10px);
  animation: slideDown 0.35s ease both;
}

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

.session-identity {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.session-identity h2 {
  font-size: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.live-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 0 rgba(62, 207, 142, 0.5);
  animation: pulse 1.8s ease-out infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(62, 207, 142, 0.45);
  }
  70% {
    box-shadow: 0 0 0 12px rgba(62, 207, 142, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(62, 207, 142, 0);
  }
}

.session-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.stage {
  position: relative;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px) 0 0 / 32px 32px,
    #050a12;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.stage video,
.stage canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
  cursor: crosshair;
  outline: none;
}

.stage-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(5, 10, 18, 0.72);
  color: var(--muted);
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.stage-overlay[hidden] {
  display: none;
}

.stage-overlay p {
  margin: 0;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

@media (max-width: 640px) {
  .auth-panel,
  .host-panel {
    padding: 28px 20px;
  }

  .session-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .session-actions {
    width: 100%;
  }

  .session-actions .btn {
    flex: 1;
  }

  .home-header,
  .admin-header,
  .admin-host-top,
  .add-host-form {
    flex-direction: column;
    align-items: stretch;
  }
}

a {
  color: #9fd0ff;
}

.home-view,
.admin-view {
  min-height: 100vh;
  position: relative;
  padding: 28px 20px 48px;
}

.home-shell,
.admin-shell {
  position: relative;
  width: min(920px, 100%);
  margin: 0 auto;
  animation: rise 0.45s ease both;
}

.home-header,
.admin-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.home-header .auth-sub,
.admin-header .auth-sub {
  margin-bottom: 0;
}

.host-list,
.admin-host-list {
  display: grid;
  gap: 12px;
}

.device-row {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  text-align: left;
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(12, 20, 34, 0.72);
  color: inherit;
  cursor: pointer;
  transition: border-color 0.2s ease, transform 0.15s ease, background 0.2s ease;
}

.device-row:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: rgba(47, 158, 239, 0.45);
  background: rgba(20, 34, 56, 0.88);
}

.device-row:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.device-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background:
    linear-gradient(160deg, rgba(47, 158, 239, 0.35), rgba(27, 45, 74, 0.9)),
    #102038;
  border: 1px solid var(--line);
}

.device-meta {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.device-meta strong {
  font-size: 1.05rem;
}

.device-status {
  font-size: 0.85rem;
  color: var(--muted);
}

.device-status.online {
  color: #9cf0c5;
}

.device-status.offline {
  color: #ffb4b4;
}

.device-cta {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}

.home-empty {
  margin-top: 18px;
  color: var(--muted);
}

.row-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.admin-atmosphere {
  opacity: 0.9;
}

.admin-panel-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(12, 20, 34, 0.72);
  backdrop-filter: blur(14px);
  margin-bottom: 28px;
}

.admin-panel-card h2,
.section-title {
  margin: 0 0 16px;
  font-size: 1.15rem;
}

.add-host-form {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr auto;
  gap: 12px;
  align-items: end;
}

.admin-host-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(12, 20, 34, 0.72);
}

.admin-host-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.admin-host-top h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.admin-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 12px;
}

.admin-meta dt {
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 4px;
}

.admin-meta dd {
  margin: 0;
}

.admin-help {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.btn.ghost[href],
a.btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}