:root {
  --bg: #08110d;
  --panel: rgba(8, 20, 15, 0.84);
  --panel-strong: rgba(5, 15, 10, 0.96);
  --line: rgba(0, 255, 136, 0.16);
  --text: #d9ffe9;
  --muted: #87b59a;
  --accent: #33ff99;
  --accent-soft: rgba(51, 255, 153, 0.14);
  --warn: #ffd166;
  --danger: #ff7a7a;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(51, 255, 153, 0.1), transparent 35%),
    radial-gradient(circle at bottom right, rgba(255, 209, 102, 0.08), transparent 28%),
    linear-gradient(180deg, #07100b 0%, #030705 100%);
  color: var(--text);
  font-family: "Cascadia Code", "JetBrains Mono", "Consolas", monospace;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(255, 255, 255, 0.02) 3px,
    rgba(255, 255, 255, 0.02) 4px
  );
  pointer-events: none;
}

a {
  color: var(--warn);
}

.tool-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.shell-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.shell-brand {
  display: grid;
  gap: 6px;
}

.shell-eyebrow {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.shell-title {
  margin: 0;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.05;
}

.shell-subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 720px;
}

.shell-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.shell-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  text-decoration: none;
}

.shell-link:hover {
  background: var(--accent-soft);
}

.panel-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 18px;
  margin-top: 18px;
}

.panel,
.tool-card,
.tool-layout > section {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 20px;
}

.panel h2,
.tool-layout > section h2 {
  margin-top: 0;
  margin-bottom: 12px;
  font-size: 18px;
}

.panel p,
.tool-card p,
.tool-layout p {
  color: var(--muted);
}

.mono {
  font-family: inherit;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.tool-card {
  display: grid;
  gap: 14px;
}

.tool-card-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.tool-card h3 {
  margin: 0;
  font-size: 20px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 12px;
  white-space: nowrap;
}

.status-pill.active {
  color: var(--accent);
  background: rgba(51, 255, 153, 0.08);
}

.status-pill.planned {
  color: var(--warn);
  background: rgba(255, 209, 102, 0.08);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-size: 12px;
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn,
button,
select,
textarea,
input[type="text"],
input[type="number"],
input[type="range"] {
  font: inherit;
}

.btn,
button {
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  text-decoration: none;
}

.btn.primary {
  background: linear-gradient(180deg, rgba(51, 255, 153, 0.2), rgba(51, 255, 153, 0.08));
  color: #f2fff7;
}

.btn.warn {
  background: rgba(255, 209, 102, 0.08);
}

.tool-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 18px;
  margin-top: 18px;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.field:last-child {
  margin-bottom: 0;
}

.field label {
  color: var(--text);
  font-size: 14px;
}

textarea,
input[type="text"],
input[type="number"],
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  background: var(--panel-strong);
  color: var(--text);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

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

.field-hint,
.small-note,
.stat-label,
.footer-note {
  color: var(--muted);
  font-size: 13px;
}

.preview-shell {
  display: grid;
  gap: 14px;
}

.preview-stage {
  display: grid;
  place-items: center;
  min-height: 320px;
  padding: 18px;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    rgba(0, 0, 0, 0.26);
  border: 1px solid var(--line);
}

.preview-stage canvas {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  background: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.stat {
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
}

.stat-value {
  margin-top: 6px;
  font-size: 24px;
  color: var(--text);
}

.notice {
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 209, 102, 0.24);
  background: rgba(255, 209, 102, 0.08);
  color: #ffe7b0;
}

code {
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
}

@media (max-width: 960px) {
  .panel-grid,
  .tool-layout,
  .inline-fields,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .shell-header {
    align-items: flex-start;
    flex-direction: column;
  }
}