:root {
  color-scheme: dark;
  --ink: #11100e;
  --paper: #f2ead8;
  --paper-soft: #d9cfb6;
  --panel: rgba(17, 16, 14, 0.82);
  --panel-strong: #181713;
  --line: rgba(242, 234, 216, 0.22);
  --acid: #d8ff52;
  --cyan: #35d8c7;
  --coral: #ff6b4a;
  --gold: #ffbd3d;
  --muted: rgba(242, 234, 216, 0.68);
  --shadow: rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    linear-gradient(115deg, rgba(216, 255, 82, 0.12), transparent 28%),
    linear-gradient(245deg, rgba(53, 216, 199, 0.16), transparent 34%),
    repeating-linear-gradient(
      90deg,
      rgba(242, 234, 216, 0.05) 0,
      rgba(242, 234, 216, 0.05) 1px,
      transparent 1px,
      transparent 74px
    ),
    var(--ink);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--paper);
  font-family: "Avenir Next", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    sans-serif;
  letter-spacing: 0;
}

button {
  font: inherit;
}

.app-shell {
  width: min(1160px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 28px;
  align-items: center;
  padding: 28px 0;
}

.command-panel,
.signal-board,
.mini-log {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 26px 80px var(--shadow);
  backdrop-filter: blur(20px);
}

.command-panel {
  padding: clamp(22px, 4vw, 44px);
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand-mark {
  width: 74px;
  height: 74px;
  flex: 0 0 auto;
  filter: drop-shadow(0 10px 28px rgba(216, 255, 82, 0.26));
}

.kicker {
  margin: 0 0 8px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: var(--paper);
  font-family: Georgia, "Songti SC", serif;
  font-size: clamp(2.4rem, 7vw, 5.8rem);
  line-height: 0.88;
  letter-spacing: 0;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 36px 0 18px;
}

.status-card {
  min-height: 142px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(242, 234, 216, 0.1), transparent 62%),
    rgba(255, 255, 255, 0.03);
}

.status-card.is-live {
  border-color: rgba(216, 255, 82, 0.42);
}

.status-label {
  color: var(--muted);
  font-size: 0.78rem;
}

.status-card strong {
  display: block;
  color: var(--paper);
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  line-height: 1.05;
  word-break: keep-all;
}

.status-card small {
  color: var(--muted);
  line-height: 1.35;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0;
}

.primary-action {
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.primary-action {
  color: #17150f;
  background: var(--acid);
  font-weight: 850;
}

.primary-action:hover {
  transform: translateY(-2px);
}

.offline-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  color: var(--paper-soft);
  line-height: 1.75;
}

.offline-note p {
  margin: 0;
}

.note-dot {
  width: 12px;
  height: 12px;
  margin-top: 8px;
  background: var(--gold);
  box-shadow: 0 0 0 6px rgba(255, 189, 61, 0.14);
}

.demo-surface {
  display: grid;
  gap: 18px;
}

.signal-board {
  min-height: 520px;
  padding: clamp(20px, 4vw, 38px);
  background:
    linear-gradient(180deg, rgba(53, 216, 199, 0.16), transparent 46%),
    var(--panel-strong);
}

.board-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.meter {
  height: 260px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: clamp(6px, 1.2vw, 14px);
  align-items: end;
  margin: 38px 0;
  padding: 18px;
  border: 1px solid rgba(242, 234, 216, 0.14);
  background:
    repeating-linear-gradient(
      0deg,
      rgba(242, 234, 216, 0.08) 0,
      rgba(242, 234, 216, 0.08) 1px,
      transparent 1px,
      transparent 32px
    ),
    rgba(0, 0, 0, 0.16);
}

.meter span {
  height: var(--height);
  min-height: 16px;
  background: linear-gradient(180deg, var(--acid), var(--cyan));
  animation: pulse-bar 2.8s ease-in-out infinite;
  animation-delay: calc(var(--height) * -0.018);
}

.payload-box {
  min-height: 118px;
  margin: 0;
  padding: 18px;
  overflow: auto;
  color: var(--paper);
  border: 1px solid rgba(216, 255, 82, 0.24);
  background: rgba(0, 0, 0, 0.28);
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.mini-log {
  padding: 18px;
}

.mini-log-title {
  margin-bottom: 12px;
  color: var(--coral);
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.76rem;
}

.mini-log ol {
  min-height: 84px;
  margin: 0;
  padding-left: 22px;
  color: var(--paper-soft);
  line-height: 1.65;
}

.mini-log li::marker {
  color: var(--acid);
}

@keyframes pulse-bar {
  0%,
  100% {
    transform: scaleY(0.94);
    opacity: 0.72;
  }
  50% {
    transform: scaleY(1);
    opacity: 1;
  }
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
    align-items: start;
    padding-top: 18px;
  }

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

  .signal-board {
    min-height: auto;
  }
}

@media (max-width: 520px) {
  .app-shell {
    width: min(100% - 20px, 1160px);
  }

  .brand-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .action-row {
    display: grid;
  }

  .primary-action {
    width: 100%;
  }

  .board-header {
    flex-direction: column;
  }
}