:root {
  color-scheme: dark;
  --bg: #0b0e14;
  --bg-2: #10141d;
  --panel: #141a25;
  --panel-2: #0f141d;
  --border: #242c3c;
  --border-strong: #33405a;
  --text: #e6e9ef;
  --muted: #8a93a6;
  --accent: #3b6cf6;
  --accent-hover: #4d7bff;
  --accent-soft: #7aa2ff;
  --green: #34d399;
  --amber: #fbbf24;
  --red: #f87171;
  --red-strong: #dc3b3b;
  --radius: 14px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

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

body {
  background: radial-gradient(ellipse 120% 60% at 50% -10%, #19223a 0%, var(--bg) 60%) fixed;
}

a {
  color: var(--accent-soft);
}

h1,
h2 {
  margin: 0;
  line-height: 1.25;
}

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

/* ---------- buttons & inputs ---------- */

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 9px 16px;
  font: inherit;
  font-weight: 600;
  color: var(--text);
  background: #1b2232;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
}

.btn:hover {
  background: #232c40;
}

.btn:focus-visible,
.input:focus-visible {
  outline: 2px solid var(--accent-soft);
  outline-offset: 2px;
}

.btn:disabled,
.btn.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
  border-radius: 8px;
}

.btn-primary {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}

.btn-ghost:hover {
  background: #1a2130;
  color: var(--text);
}

.btn-danger {
  color: var(--red);
}

.btn-danger:hover {
  background: rgba(248, 113, 113, 0.1);
  color: var(--red);
}

.btn-danger-solid {
  background: var(--red-strong);
  border-color: transparent;
  color: #fff;
}

.btn-danger-solid:hover {
  background: #e84a4a;
}

.btn-github {
  background: #f0f3f6;
  color: #111;
  border-color: transparent;
  padding: 12px 22px;
  font-size: 16px;
}

.btn-github:hover {
  background: #fff;
}

.input {
  font: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 6px 10px;
  min-width: 0;
}

select.input {
  padding-right: 28px;
  cursor: pointer;
}

.input.num {
  width: 92px;
}

.label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* ---------- status dots & spinner ---------- */

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #4b5567;
  flex: none;
}

.dot-online,
.dot-live {
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.15);
}

.dot-pending {
  background: var(--amber);
  animation: pulse 1.2s ease-in-out infinite;
}

.dot-error {
  background: var(--red);
}

.dot-offline {
  background: #4b5567;
}

@keyframes pulse {
  50% {
    opacity: 0.35;
  }
}

.spinner {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 3px solid rgba(122, 162, 255, 0.2);
  border-top-color: var(--accent-soft);
  animation: spin 0.8s linear infinite;
}

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

.boot,
.loading {
  display: grid;
  place-items: center;
  min-height: 40vh;
}

.boot {
  min-height: 100vh;
}

/* ---------- logo / topbar ---------- */

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.01em;
  color: var(--text);
  text-decoration: none;
}

.logo-mark {
  width: 22px;
  height: 16px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-soft) 100%);
  box-shadow: 0 4px 14px rgba(59, 108, 246, 0.45);
  position: relative;
}

.logo-mark::after {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  bottom: -5px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent-soft);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: rgba(11, 14, 20, 0.75);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
}

.user-login {
  font-weight: 600;
  font-size: 14px;
}

/* ---------- signed out ---------- */

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.hero-card {
  width: 100%;
  max-width: 480px;
  padding: 40px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(25, 32, 50, 0.9), rgba(16, 20, 29, 0.9));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.hero-card h1 {
  font-size: 30px;
  letter-spacing: -0.01em;
}

.hero-card p {
  margin: 0;
}

/* ---------- machine list ---------- */

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 28px 64px;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
}

.section-head h1 {
  font-size: 24px;
}

.banner {
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 18px;
  font-size: 14px;
}

.banner-error {
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.35);
  color: #fecaca;
}

.machine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 18px;
}

.machine {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
  transition: border-color 0.15s, opacity 0.15s;
}

.machine:hover {
  border-color: var(--border-strong);
}

.machine.busy {
  opacity: 0.7;
}

.machine-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.machine-icon {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
}

.machine-title {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.machine-name {
  font-weight: 650;
  font-size: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.name-input {
  width: 100%;
}

.machine-meta {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.machine-res {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.res-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.custom-res {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.machine-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: -4px -6px -6px;
}

.spacer {
  flex: 1;
}

.empty {
  text-align: center;
  padding: 64px 24px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  background: rgba(20, 26, 37, 0.5);
}

.empty h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.empty p {
  max-width: 460px;
  margin: 0 auto;
}

.empty-icon {
  width: 56px;
  height: 40px;
  margin: 0 auto 18px;
  border-radius: 8px;
  border: 2px solid var(--border-strong);
  position: relative;
}

.empty-icon::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: -9px;
  height: 4px;
  border-radius: 2px;
  background: var(--border-strong);
}

/* ---------- viewer ---------- */

.viewer {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  background: #05070b;
}

.toolbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 14px;
  background: #0d1119;
  border-bottom: 1px solid var(--border);
  min-height: 48px;
}

.viewer-title {
  font-weight: 650;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 28vw;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  min-width: 0;
}

.status-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stat {
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  white-space: nowrap;
}

.stage {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.screen {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  border: 0;
  padding: 0;
  outline: none;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
  image-rendering: auto;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(5, 7, 11, 0.72);
  backdrop-filter: blur(4px);
}

.overlay-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  max-width: 440px;
  padding: 28px 32px;
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.overlay-title {
  font-size: 17px;
  font-weight: 650;
}

.overlay-detail {
  font-size: 14px;
}

.overlay-detail:empty {
  display: none;
}

.overlay-actions {
  display: flex;
  gap: 10px;
  margin-top: 4px;
}

.viewer:fullscreen {
  width: 100vw;
  height: 100vh;
}

@media (max-width: 640px) {
  .topbar,
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .toolbar {
    flex-wrap: wrap;
  }

  .stat {
    display: none;
  }
}