:root {
  --bg: #f5f0e9;
  --bg-deep: #d8c8b4;
  --panel: rgba(11, 23, 29, 0.9);
  --panel-alt: rgba(19, 38, 47, 0.86);
  --ink: #f7f3ec;
  --ink-soft: rgba(247, 243, 236, 0.7);
  --line: rgba(255, 255, 255, 0.12);
  --accent: #f26d3d;
  --accent-strong: #ffb14a;
  --signal: #4fc3b4;
  --danger: #eb5e55;
  --shadow: 0 28px 60px rgba(15, 24, 29, 0.18);
  --radius: 24px;
  --radius-sm: 16px;
  --font-sans: "Space Grotesk", "Avenir Next", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", "SF Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(242, 109, 61, 0.18), transparent 24rem),
    radial-gradient(circle at bottom right, rgba(79, 195, 180, 0.16), transparent 28rem),
    linear-gradient(145deg, #f7f1e8 0%, var(--bg) 38%, var(--bg-deep) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.28), transparent 80%);
}

.page-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.hero,
.panel {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 28%),
    linear-gradient(145deg, var(--panel) 0%, var(--panel-alt) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.hero {
  padding: 2.5rem;
  margin-bottom: 1.5rem;
  animation: fade-up 500ms ease-out both;
}

.hero::after,
.panel::after {
  content: "";
  position: absolute;
  inset: auto -20% -55% auto;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 109, 61, 0.24), transparent 70%);
  pointer-events: none;
}

.eyebrow,
.panel-label {
  margin: 0 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.74rem;
  color: var(--accent-strong);
}

.hero-title {
  margin: 0;
  max-width: 10ch;
  font-size: clamp(2.5rem, 6.2vw, 4.4rem);
  line-height: 0.92;
  letter-spacing: -0.05em;
}

.panel h2 {
  margin: 0;
  line-height: 1.02;
}

.hero-actions,
.hero-meta,
.ota-actions,
.panel-heading,
.progress-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-actions,
.hero-meta {
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1.5rem;
}

.panel {
  padding: 1.5rem;
  animation: fade-up 600ms ease-out both;
}

.panel-status {
  grid-column: span 12;
}

.panel-controls,
.panel-ota,
.panel-subscription {
  grid-column: span 6;
}

.panel-log {
  grid-column: span 12;
}

.panel-verification {
  grid-column: span 12;
}

.panel-heading {
  justify-content: space-between;
  margin-bottom: 1.15rem;
}

.button {
  border: 0;
  border-radius: 999px;
  padding: 0.85rem 1.2rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, opacity 180ms ease, background 180ms ease;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #21130c;
  box-shadow: 0 12px 24px rgba(242, 109, 61, 0.28);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--ink);
}

.button-ghost {
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--line);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  font-size: 0.86rem;
  border: 1px solid var(--line);
}

.pill::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.9;
}

.pill-offline {
  color: #ffb8ad;
  background: rgba(235, 94, 85, 0.12);
}

.pill-online {
  color: #9cf1d2;
  background: rgba(79, 195, 180, 0.12);
}

.pill-static {
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.05);
}

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

.metric-card,
.toggle-card,
.event-log,
.progress-track {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.metric-card {
  padding: 1rem;
  border-radius: var(--radius-sm);
}

.metric-label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.metric-card strong {
  font-size: 1.08rem;
}

.toggle-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem;
  border-radius: var(--radius-sm);
}

.toggle-title {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 700;
  font-size: 1.05rem;
}

.toggle-copy,
.muted-copy {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.6;
}

.panel-note {
  margin-bottom: 1rem;
}

.toggle-shell {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.toggle-shell input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.toggle-slider {
  width: 4rem;
  height: 2.2rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: background 180ms ease;
}

.toggle-slider::after {
  content: "";
  position: absolute;
  top: 0.22rem;
  left: 0.22rem;
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  background: #fff8ef;
  box-shadow: 0 8px 20px rgba(12, 22, 28, 0.22);
  transition: transform 180ms ease;
}

.toggle-shell input:checked + .toggle-slider {
  background: linear-gradient(135deg, rgba(79, 195, 180, 0.85), rgba(242, 109, 61, 0.85));
}

.toggle-shell input:checked + .toggle-slider::after {
  transform: translateX(1.8rem);
}

.ota-actions,
.progress-block {
  margin-top: 1rem;
}

.install-options {
  display: grid;
  gap: 0.9rem;
}

.guide-list {
  margin: 1rem 0 0;
  padding-left: 1.35rem;
  display: grid;
  gap: 1rem;
}

.guide-list li::marker {
  color: var(--accent-strong);
  font-weight: 700;
}

.guide-list strong {
  display: inline-block;
  margin-bottom: 0.5rem;
}

.guide-sublist {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--ink-soft);
  display: grid;
  gap: 0.4rem;
  line-height: 1.55;
}

.guide-sublist code {
  color: var(--ink);
  font-family: var(--font-mono);
}

.comparison-grid {
  margin-top: 0.9rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.comparison-card {
  padding: 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.comparison-card strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1.08rem;
}

.install-button {
  display: block;
  width: 100%;
  text-align: left;
  line-height: 1.4;
}

.progress-block {
  display: grid;
  gap: 0.65rem;
}

.progress-meta {
  justify-content: space-between;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.progress-track {
  width: 100%;
  height: 0.9rem;
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent) 0%, var(--signal) 100%);
  transition: width 140ms ease;
}

.event-log {
  min-height: 17rem;
  margin: 0;
  padding: 1rem;
  border-radius: var(--radius-sm);
  color: #d8f1eb;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .panel-controls,
  .panel-subscription,
  .panel-ota,
  .status-grid {
    grid-column: span 12;
  }

  .status-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .comparison-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 1rem, 100%);
    padding-top: 1rem;
  }

  .hero,
  .panel {
    padding: 1.2rem;
  }

  .hero-title {
    max-width: none;
    font-size: clamp(2.1rem, 10vw, 2.9rem);
  }

  .status-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .comparison-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .toggle-card,
  .panel-heading,
  .hero-actions,
  .hero-meta,
  .ota-actions {
    flex-direction: column;
    align-items: stretch;
  }
}