:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-soft: #0d1830;
  --surface: rgba(10, 18, 34, 0.86);
  --surface-strong: #101b31;
  --surface-line: rgba(170, 198, 255, 0.14);
  --text: #eff4ff;
  --muted: #a7b5d2;
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #fb7185;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --font-body: "Avenir Next", "Segoe UI", "Trebuchet MS", sans-serif;
  --font-display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 32%),
    radial-gradient(circle at 85% 15%, rgba(34, 197, 94, 0.12), transparent 24%),
    linear-gradient(180deg, #050b15 0%, var(--bg) 42%, #050916 100%);
}

button,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.page-shell {
  position: relative;
  width: min(1320px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.background-glow {
  position: fixed;
  inset: auto;
  pointer-events: none;
  filter: blur(18px);
  opacity: 0.75;
  z-index: 0;
}

.background-glow-a {
  top: -80px;
  left: -80px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(125, 211, 252, 0.22), transparent 70%);
}

.background-glow-b {
  right: -60px;
  top: 160px;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.14), transparent 70%);
}

.hero,
.layout {
  position: relative;
  z-index: 1;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.9fr);
  gap: 22px;
  align-items: stretch;
  margin-bottom: 20px;
}

.hero-copy,
.hero-panel,
.card,
.ad-slot {
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: var(--surface);
  border: 1px solid var(--surface-line);
  box-shadow: var(--shadow);
}

.hero-copy {
  border-radius: calc(var(--radius-xl) + 8px);
  padding: 30px 32px;
}

.eyebrow,
.card-kicker,
.ad-label,
.panel-label {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--accent);
}

.hero h1,
.card h2,
.panel-title {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 4.5rem);
  line-height: 0.94;
  max-width: 12ch;
}

.lede,
.panel-text,
.empty-state,
.info-list,
.hint,
.ad-slot p {
  color: var(--muted);
}

.lede {
  max-width: 62ch;
  margin: 16px 0 0;
  font-size: 1.05rem;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.hero-stats span,
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 9px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 0.94rem;
}

.hero-panel {
  border-radius: calc(var(--radius-xl) + 8px);
  padding: 18px;
}

.accent-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 184px;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(160deg, rgba(56, 189, 248, 0.18), rgba(16, 27, 49, 0.93) 55%),
    rgba(9, 15, 28, 0.95);
  border: 1px solid rgba(125, 211, 252, 0.18);
  padding: 18px;
}

.panel-title {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.panel-text {
  margin: 0;
  line-height: 1.7;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, 0.75fr);
  gap: 20px;
}

.workspace {
  display: grid;
  gap: 18px;
}

.sidebar {
  display: grid;
  gap: 18px;
  align-content: start;
}

.card,
.ad-slot {
  border-radius: var(--radius-xl);
}

.card {
  padding: 22px;
}

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

.card h2 {
  font-size: 1.45rem;
  line-height: 1.1;
}

.card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
}

.toggle-option {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.toggle-option input {
  accent-color: var(--accent-strong);
}

.primary-button,
.ghost-button {
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  transition: transform 140ms ease, background-color 140ms ease, border-color 140ms ease, opacity 140ms ease;
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.primary-button:active,
.ghost-button:active {
  transform: translateY(0);
}

.primary-button {
  background: linear-gradient(135deg, var(--accent-strong), #2dd4bf);
  color: #04111d;
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(56, 189, 248, 0.24);
}

.ghost-button {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.primary-button:disabled,
.ghost-button:disabled {
  opacity: 0.55;
  cursor: progress;
}

textarea {
  width: 100%;
  min-height: 360px;
  resize: vertical;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 22px;
  padding: 18px 18px 20px;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01)),
    rgba(4, 9, 18, 0.88);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.75;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

textarea:focus {
  outline: 2px solid rgba(125, 211, 252, 0.5);
  outline-offset: 2px;
}

textarea::placeholder {
  color: #6e7ea4;
}

.editor-footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  margin-top: 14px;
  flex-wrap: wrap;
}

.hint {
  font-size: 0.92rem;
}

.status-chip {
  width: fit-content;
}

.status-chip.neutral {
  color: #c9d5ea;
}

.status-chip.ok {
  color: #b9ffe0;
  border-color: rgba(52, 211, 153, 0.24);
  background: rgba(52, 211, 153, 0.12);
}

.status-chip.warn {
  color: #ffe4a3;
  border-color: rgba(251, 191, 36, 0.24);
  background: rgba(251, 191, 36, 0.12);
}

.status-chip.error {
  color: #ffb6c2;
  border-color: rgba(251, 113, 133, 0.24);
  background: rgba(251, 113, 133, 0.12);
}

.code-frame {
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(4, 9, 18, 0.88);
}

pre {
  margin: 0;
  padding: 18px;
  max-height: 460px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  color: #eaf2ff;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.72;
}

.issues-list {
  display: grid;
  gap: 12px;
}

.mock-results {
  display: grid;
  gap: 14px;
}

.mock-section h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.mock-functions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.issue-card {
  border-radius: 18px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.issue-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.issue-title {
  margin: 0;
  font-weight: 700;
}

.issue-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.8rem;
  line-height: 1;
  background: rgba(255, 255, 255, 0.06);
  color: #dce7fb;
}

.pill.high {
  background: rgba(251, 113, 133, 0.14);
  color: #ffc1cd;
}

.pill.medium {
  background: rgba(251, 191, 36, 0.14);
  color: #ffe1a6;
}

.pill.low {
  background: rgba(56, 189, 248, 0.14);
  color: #bfefff;
}

.issue-message {
  margin: 0;
  color: #d9e3f7;
  line-height: 1.65;
}

.issue-code {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(4, 9, 18, 0.66);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #d8e7ff;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  overflow: auto;
}

.empty-state {
  border-radius: 18px;
  padding: 18px;
  border: 1px dashed rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.025);
  line-height: 1.7;
}

.info-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.75;
}

.info-list code {
  font-family: var(--font-mono);
  color: #dff3ff;
}

.ad-slot {
  padding: 22px;
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  border-style: dashed;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01)),
    rgba(12, 19, 34, 0.8);
}

.ad-slot strong {
  font-size: 1.08rem;
}

.ad-slot p {
  margin: 0;
  line-height: 1.6;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1080px) {
  .hero,
  .layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .page-shell {
    width: min(100%, calc(100% - 20px));
    padding-top: 18px;
  }

  .hero-copy,
  .card,
  .hero-panel,
  .ad-slot {
    border-radius: 22px;
  }

  .hero-copy {
    padding: 22px;
  }

  .card {
    padding: 18px;
  }

  .card-head,
  .editor-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .card-actions {
    justify-content: stretch;
  }

  .card-actions > button {
    flex: 1 1 0;
  }

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

  textarea {
    min-height: 300px;
  }

  pre {
    max-height: 360px;
  }
}