@font-face {
  font-family: "Geist";
  src: url("./fonts/Geist-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Geist Mono";
  src: url("./fonts/GeistMono-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --canvas: #080908;
  --surface: #0d0e0d;
  --surface-raised: #121311;
  --surface-recessed: #090a09;
  --line: rgba(244, 243, 238, 0.1);
  --line-strong: rgba(244, 243, 238, 0.18);
  --ink: #f4f3ee;
  --ink-soft: #c3c1bb;
  --muted: #91908a;
  --dim: #62625d;
  --signal: #9de8bf;
  --signal-ink: #06130b;
  --danger: #ff7b7f;
  --warning: #e9b65e;
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --page: 1120px;
  --content: 920px;
  --radius: 10px;
  --pad: clamp(18px, 4vw, 32px);
}

* { box-sizing: border-box; }
html { overflow-x: clip; background: var(--canvas); scroll-behavior: smooth; }
body {
  min-width: 320px;
  overflow-x: clip;
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
::selection { background: rgba(157, 232, 191, 0.24); color: var(--ink); }

.mono, code, pre { font-family: var(--mono); }
code {
  border: 1px solid var(--line);
  border-radius: 5px;
  background: rgba(244, 243, 238, 0.04);
  padding: 0.12rem 0.36rem;
  color: var(--ink-soft);
  font-size: 0.86em;
}

.wordmark {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  font-weight: 580;
  letter-spacing: -0.025em;
}
.wordmark-mark {
  position: relative;
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
}
.wordmark-mark::before,
.wordmark-mark::after {
  position: absolute;
  left: 4px;
  width: 8px;
  height: 2px;
  border-radius: 1px;
  background: var(--ink);
  content: "";
}
.wordmark-mark::before { top: 5px; }
.wordmark-mark::after { top: 10px; background: var(--signal); }

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.eyebrow::before {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--signal);
  content: "";
  vertical-align: 1px;
}

.button {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 8px 13px;
  font-size: 0.875rem;
  font-weight: 560;
  line-height: 1;
  cursor: pointer;
}
.button-primary {
  border-color: var(--signal);
  background: var(--signal);
  color: var(--signal-ink);
}
.button-primary:hover { background: #b0efcb; border-color: #b0efcb; }
.button-secondary {
  border-color: var(--line-strong);
  background: rgba(244, 243, 238, 0.035);
  color: var(--ink);
}
.button-secondary:hover { background: rgba(244, 243, 238, 0.07); }
.button:focus-visible,
.icon-button:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 8px;
  background: rgba(244, 243, 238, 0.025);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  line-height: 1.25;
  white-space: nowrap;
}
.status::before {
  width: 5px;
  height: 5px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
  content: "";
}
.status-ready { border-color: rgba(157, 232, 191, 0.24); color: var(--signal); }
.status-blocked { border-color: rgba(255, 123, 127, 0.24); color: var(--danger); }
.status-warning { border-color: rgba(233, 182, 94, 0.24); color: var(--warning); }
.status-neutral::before { display: none; }

.tag {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 3px 7px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  white-space: nowrap;
}
.tag-strong { border-color: rgba(233, 182, 94, 0.28); color: var(--warning); }
.tag-good { border-color: rgba(157, 232, 191, 0.24); color: var(--signal); }

.instrument {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: min(1.4vw, var(--radius));
  background: var(--surface);
  overflow: hidden;
}
.instrument-bar {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  border-bottom: 1px solid var(--line);
  padding: 8px 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
}
.instrument-bar > * { min-width: 0; }
.instrument-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.instrument-meta { margin-left: auto; flex: 0 0 auto; }

.diff-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.diff-code {
  min-width: max-content;
  padding: 8px 0 10px;
  font-family: var(--mono);
  font-size: 0.75rem;
  line-height: 1.65;
}
.diff-row { display: grid; grid-template-columns: 42px minmax(max-content, 1fr); }
.diff-number {
  padding: 0 9px 0 6px;
  color: var(--dim);
  text-align: right;
  user-select: none;
}
.diff-line { padding: 0 14px 0 8px; white-space: pre; }
.diff-row-delete { background: rgba(255, 123, 127, 0.1); color: #f7a5a8; }
.diff-row-add { background: rgba(157, 232, 191, 0.09); color: #a9eaca; }
.diff-row-context { color: var(--ink-soft); }
.stat-delete { color: var(--danger); }
.stat-add { color: var(--signal); }

.screen-reader-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: 639px) {
  body { font-size: 16px; }
  .button { min-height: 46px; }
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    animation: reveal 560ms cubic-bezier(0.2, 0.75, 0.25, 1) both;
  }
  .reveal-delay { animation-delay: 90ms; }
  @keyframes reveal {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
  }
}