:root {
  color-scheme: light;
  --bg: #f6f4ef;
  --bg-accent: #efe5d4;
  --card: rgba(255, 252, 247, 0.92);
  --card-strong: #fffdf8;
  --line: #d9cfbe;
  --text: #1f2933;
  --muted: #6b7280;
  --brand: #0f766e;
  --brand-deep: #134e4a;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --shadow: 0 20px 55px rgba(58, 46, 24, 0.12);
  --radius: 22px;
  --font-ui: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
  --font-mono: "Cascadia Mono", "Consolas", monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.18), transparent 32%),
    radial-gradient(circle at top right, rgba(180, 35, 24, 0.08), transparent 24%),
    linear-gradient(180deg, var(--bg-accent), var(--bg));
}

button,
input,
select,
textarea {
  font: inherit;
}

.page-shell {
  width: min(1440px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 36px;
}

.hero {
  display: flex;
  gap: 24px;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 22px;
  padding: 28px;
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: 30px;
  background:
    linear-gradient(135deg, rgba(255, 253, 248, 0.95), rgba(245, 238, 224, 0.9)),
    var(--card);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--brand);
}

.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 56px);
  line-height: 0.95;
}

.hero-copy,
.hero-note p {
  margin: 10px 0 0;
  max-width: 760px;
  line-height: 1.6;
  color: var(--muted);
}

.hero-note {
  min-width: 260px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(15, 118, 110, 0.08);
  border: 1px solid rgba(15, 118, 110, 0.16);
}

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

.card {
  padding: 22px;
  border: 1px solid rgba(31, 41, 51, 0.08);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.span-2 {
  grid-column: span 2;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 16px;
}

.section-head h2,
.subcard h3 {
  margin: 0;
  font-size: 20px;
}

.section-head p,
.subcard p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
}

.toolbar.compact {
  gap: 10px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

input,
select,
textarea,
button {
  border-radius: 14px;
}

input,
select,
textarea {
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--card-strong);
  color: var(--text);
}

textarea {
  resize: vertical;
}

button {
  min-height: 44px;
  padding: 0 16px;
  border: none;
  background: var(--brand);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

button:hover {
  transform: translateY(-1px);
  background: var(--brand-deep);
  box-shadow: 0 12px 24px rgba(15, 118, 110, 0.22);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
  box-shadow: none;
}

.status-pill {
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(180, 35, 24, 0.08);
  color: var(--danger);
  font-weight: 700;
}

.status-pill.connected {
  background: rgba(15, 118, 110, 0.1);
  color: var(--brand);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.meta-grid > div {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(31, 41, 51, 0.06);
}

.meta-label {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 13px;
}

.panel-output,
.large-output,
.log-panel {
  margin: 0;
  white-space: pre-wrap;
  font-family: var(--font-mono);
}

.panel-output {
  min-height: 140px;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(31, 41, 51, 0.08);
}

.large-output {
  display: block;
  font-size: 28px;
  letter-spacing: 0.02em;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.table-wrap {
  overflow: auto;
  border-radius: 18px;
  border: 1px solid rgba(31, 41, 51, 0.08);
  background: rgba(255, 255, 255, 0.55);
}

.table-wrap.tall {
  max-height: 420px;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  position: sticky;
  top: 0;
  z-index: 1;
  background: rgba(246, 244, 239, 0.96);
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(31, 41, 51, 0.08);
  text-align: left;
  font-size: 14px;
}

.progress-row {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 14px;
}

progress {
  width: min(420px, 100%);
  height: 14px;
  accent-color: var(--brand);
}

.maintenance-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.subcard {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid rgba(31, 41, 51, 0.08);
}

.subcard.danger {
  background: var(--danger-soft);
  border-color: rgba(180, 35, 24, 0.18);
}

.subcard.danger button:last-child {
  background: var(--danger);
}

.log-panel {
  width: 100%;
  min-height: 220px;
  border: 1px solid rgba(31, 41, 51, 0.08);
  background: rgba(255, 255, 255, 0.58);
}

@media (max-width: 1080px) {
  .dashboard,
  .form-grid,
  .maintenance-grid,
  .meta-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: auto;
  }

  .hero,
  .section-head {
    flex-direction: column;
  }
}