/* style.css — Observer Agent Design Tokens + Components */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

:root {
  --font-display: 'DM Sans', 'Helvetica Neue', sans-serif;
  --font-body: 'DM Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'DM Mono', 'Menlo', monospace;

  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.9rem  + 0.5vw,  1.125rem);
  --text-lg:   clamp(1.125rem, 0.95rem + 0.85vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1rem    + 1.5vw,  2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  --space-1:  0.25rem; --space-2:  0.5rem; --space-3:  0.75rem; --space-4:  1rem;
  --space-5:  1.25rem; --space-6:  1.5rem; --space-8:  2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  --radius-sm: 0.375rem; --radius-md: 0.5rem; --radius-lg: 0.75rem; --radius-xl: 1rem; --radius-full: 9999px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --content-narrow: 640px; --content-default: 960px; --content-wide: 1200px;
}

:root, [data-theme="light"] {
  --color-bg:             #f7f6f2;
  --color-surface:        #f9f8f5;
  --color-surface-2:      #fbfbf9;
  --color-surface-offset: #f3f0ec;
  --color-surface-offset-2: #edeae5;
  --color-surface-dynamic: #e6e4df;
  --color-divider:        #dcd9d5;
  --color-border:         #d4d1ca;
  --color-text:           #28251d;
  --color-text-muted:     #7a7974;
  --color-text-faint:     #bab9b4;
  --color-text-inverse:   #f9f8f4;
  --color-primary:        #01696f;
  --color-primary-hover:  #0c4e54;
  --color-primary-active: #0f3638;
  --color-primary-highlight: #cedcd8;
  --color-warning:        #964219;
  --color-warning-highlight: #ddcfc6;
  --color-error:          #a12c7b;
  --color-error-highlight: #e0ced7;
  --color-success:        #437a22;
  --color-success-highlight: #d4dfcc;
  --color-blue:           #006494;
  --color-blue-highlight: #c6d8e4;
  --color-purple:         #7a39bb;
  --color-purple-highlight: #dacfde;
  --color-orange:         #da7101;
  --color-orange-highlight: #e7d7c4;
  --color-gold:           #d19900;
  --color-gold-highlight: #e9e0c6;
  --shadow-sm: 0 1px 2px oklch(0.2 0.01 80 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 80 / 0.08);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 80 / 0.12);
}

[data-theme="dark"] {
  --color-bg:             #171614;
  --color-surface:        #1c1b19;
  --color-surface-2:      #201f1d;
  --color-surface-offset: #1d1c1a;
  --color-surface-offset-2: #22211f;
  --color-surface-dynamic: #2d2c2a;
  --color-divider:        #262523;
  --color-border:         #393836;
  --color-text:           #cdccca;
  --color-text-muted:     #797876;
  --color-text-faint:     #5a5957;
  --color-text-inverse:   #2b2a28;
  --color-primary:        #4f98a3;
  --color-primary-hover:  #227f8b;
  --color-primary-active: #1a626b;
  --color-primary-highlight: #313b3b;
  --color-warning:        #bb653b;
  --color-warning-highlight: #564942;
  --color-error:          #d163a7;
  --color-error-highlight: #4c3d46;
  --color-success:        #6daa45;
  --color-success-highlight: #3a4435;
  --color-blue:           #5591c7;
  --color-blue-highlight: #3a4550;
  --color-purple:         #a86fdf;
  --color-purple-highlight: #4e4652;
  --color-orange:         #fdab43;
  --color-orange-highlight: #564b3e;
  --color-gold:           #e8af34;
  --color-gold-highlight: #4d4332;
  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #171614; --color-surface: #1c1b19; --color-surface-2: #201f1d;
    --color-surface-offset: #1d1c1a; --color-surface-offset-2: #22211f;
    --color-surface-dynamic: #2d2c2a; --color-divider: #262523; --color-border: #393836;
    --color-text: #cdccca; --color-text-muted: #797876; --color-text-faint: #5a5957;
    --color-text-inverse: #2b2a28; --color-primary: #4f98a3; --color-primary-hover: #227f8b;
    --color-primary-active: #1a626b; --color-primary-highlight: #313b3b;
    --color-warning: #bb653b; --color-warning-highlight: #564942;
    --color-error: #d163a7; --color-error-highlight: #4c3d46;
    --color-success: #6daa45; --color-success-highlight: #3a4435;
    --color-blue: #5591c7; --color-blue-highlight: #3a4550;
    --color-purple: #a86fdf; --color-purple-highlight: #4e4652;
    --color-orange: #fdab43; --color-orange-highlight: #564b3e;
    --color-gold: #e8af34; --color-gold-highlight: #4d4332;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.2); --shadow-md: 0 4px 12px oklch(0 0 0 / 0.3);
    --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.4);
  }
}

/* ===== LAYOUT ===== */
.app { display: flex; flex-direction: column; min-height: 100dvh; }
.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) var(--space-6); border-bottom: 1px solid var(--color-divider);
  background: var(--color-surface); position: sticky; top: var(--lab-bar-h, 0px); z-index: 40; /* Lab: under the demo banner */
}
.header-left { display: flex; align-items: center; gap: var(--space-3); }
.logo-icon {
  width: 32px; height: 32px; background: var(--color-primary); border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center; color: var(--color-text-inverse);
}
.logo-text { font-size: var(--text-lg); font-weight: 600; letter-spacing: -0.02em; }
.logo-sub { font-size: var(--text-xs); color: var(--color-text-muted); font-weight: 400; margin-left: var(--space-2); }
.header-right { display: flex; align-items: center; gap: var(--space-3); }

.theme-toggle {
  width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); color: var(--color-text-muted);
  transition: background var(--transition-interactive), color var(--transition-interactive);
}
.theme-toggle:hover { background: var(--color-surface-dynamic); color: var(--color-text); }

.main { flex: 1; padding: var(--space-8) var(--space-6); max-width: var(--content-wide); margin: 0 auto; width: 100%; }

/* ===== SEARCH ===== */
.search-section { text-align: center; padding: var(--space-12) 0 var(--space-8); }
.search-title {
  font-size: var(--text-2xl); font-weight: 700; letter-spacing: -0.03em; margin-bottom: var(--space-3);
}
.search-subtitle { font-size: var(--text-base); color: var(--color-text-muted); margin-bottom: var(--space-8); max-width: 520px; margin-inline: auto; }
.search-form { display: flex; gap: var(--space-3); max-width: 560px; margin: 0 auto; }
.search-input {
  flex: 1; padding: var(--space-3) var(--space-4); border-radius: var(--radius-lg);
  border: 1px solid var(--color-border); background: var(--color-surface);
  font-size: var(--text-base); transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.search-input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-highlight); }
.search-input::placeholder { color: var(--color-text-faint); }
.search-btn {
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-lg);
  background: var(--color-primary); color: var(--color-text-inverse); font-weight: 600;
  font-size: var(--text-sm); transition: background var(--transition-interactive); white-space: nowrap;
}
.search-btn:hover { background: var(--color-primary-hover); }
.search-btn:active { background: var(--color-primary-active); }
.search-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.quick-links { display: flex; gap: var(--space-2); justify-content: center; margin-top: var(--space-4); flex-wrap: wrap; }
.quick-link {
  font-size: var(--text-xs); color: var(--color-text-muted); padding: var(--space-1) var(--space-3);
  border: 1px solid var(--color-divider); border-radius: var(--radius-full);
  transition: all var(--transition-interactive); font-family: var(--font-mono);
}
.quick-link:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-highlight); }

/* ===== LOADING ===== */
.loading-section { text-align: center; padding: var(--space-16) 0; }
.loader {
  width: 48px; height: 48px; border: 3px solid var(--color-divider);
  border-top-color: var(--color-primary); border-radius: 50%;
  animation: spin 0.8s linear infinite; margin: 0 auto var(--space-4);
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text { color: var(--color-text-muted); font-size: var(--text-sm); }
.loading-steps { margin-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-2); align-items: center; }
.loading-step {
  font-size: var(--text-xs); color: var(--color-text-faint); font-family: var(--font-mono);
  transition: color var(--transition-interactive);
}
.loading-step.active { color: var(--color-primary); }
.loading-step.done { color: var(--color-success); }

/* ===== ERROR ===== */
.error-section {
  text-align: center; padding: var(--space-8); background: var(--color-error-highlight);
  border-radius: var(--radius-lg); max-width: 480px; margin: var(--space-8) auto;
}
.error-icon { font-size: var(--text-xl); margin-bottom: var(--space-2); }
.error-text { color: var(--color-text); font-size: var(--text-sm); }
.error-retry {
  margin-top: var(--space-4); padding: var(--space-2) var(--space-4); border-radius: var(--radius-md);
  border: 1px solid var(--color-border); font-size: var(--text-xs);
  transition: all var(--transition-interactive);
}
.error-retry:hover { background: var(--color-surface-dynamic); }

/* ===== RESULTS ===== */
.results { display: none; }
.results.visible { display: block; animation: fadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Repo header */
.repo-header {
  display: flex; align-items: flex-start; gap: var(--space-6); padding: var(--space-6);
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl);
  margin-bottom: var(--space-6);
}
.repo-avatar {
  width: 56px; height: 56px; border-radius: var(--radius-lg); background: var(--color-primary-highlight);
  display: flex; align-items: center; justify-content: center; font-size: var(--text-xl); font-weight: 700;
  color: var(--color-primary); flex-shrink: 0;
}
.repo-info { flex: 1; min-width: 0; }
.repo-name { font-size: var(--text-lg); font-weight: 700; letter-spacing: -0.02em; }
.repo-name a { color: inherit; text-decoration: none; }
.repo-name a:hover { color: var(--color-primary); }
.repo-desc { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-1); }
.repo-meta { display: flex; gap: var(--space-4); margin-top: var(--space-3); flex-wrap: wrap; }
.repo-stat {
  font-size: var(--text-xs); color: var(--color-text-muted); display: flex; align-items: center; gap: var(--space-1);
  font-family: var(--font-mono);
}
.repo-stat svg { width: 14px; height: 14px; }
.repo-topics { display: flex; gap: var(--space-2); margin-top: var(--space-3); flex-wrap: wrap; }
.topic-tag {
  font-size: var(--text-xs); padding: var(--space-1) var(--space-2); border-radius: var(--radius-full);
  background: var(--color-primary-highlight); color: var(--color-primary); font-weight: 500;
}

/* Analysis grid */
.analysis-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); grid-template-areas: "stack patterns" "infra patterns"; gap: var(--space-4); margin-bottom: var(--space-4); }
.analysis-grid .area-stack { grid-area: stack; }
.analysis-grid .area-infra { grid-area: infra; }
.analysis-grid .area-patterns { grid-area: patterns; }
.mini-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2); margin-top: var(--space-5); }
.mini-stat { background: var(--color-surface-offset); border-radius: var(--radius-md); padding: var(--space-3); }
.mini-stat b { display: block; font-family: var(--font-mono); font-size: var(--text-lg); font-weight: 600; line-height: 1.2; }
.mini-stat span { font-size: var(--text-xs); color: var(--color-text-muted); }
.analysis-card {
  padding: var(--space-5); background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}
.analysis-card-title {
  font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-muted); margin-bottom: var(--space-3);
}
.analysis-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.analysis-tag {
  font-size: var(--text-xs); padding: var(--space-1) var(--space-3); border-radius: var(--radius-full);
  font-family: var(--font-mono); font-weight: 500;
}
.tag-framework { background: var(--color-blue-highlight); color: var(--color-blue); }
.tag-infra { background: var(--color-purple-highlight); color: var(--color-purple); }
.tag-pattern { background: var(--color-orange-highlight); color: var(--color-orange); }

/* Language bar */
.lang-bar-container { margin-bottom: 0; }
.lang-bar-title {
  font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-muted); margin-bottom: var(--space-3);
}
.lang-bar {
  height: 8px; border-radius: var(--radius-full); overflow: hidden; display: flex;
  background: var(--color-surface-dynamic);
}
.lang-segment { height: 100%; transition: width var(--transition-interactive); min-width: 3px; }
.lang-legend { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-3); }
.lang-item { display: flex; align-items: center; gap: var(--space-1); font-size: var(--text-xs); color: var(--color-text-muted); }
.lang-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* Ideas section */
.ideas-section { margin-bottom: var(--space-8); }
.ideas-title {
  font-size: var(--text-xl); font-weight: 700; letter-spacing: -0.02em; margin-bottom: var(--space-2);
}
.ideas-subtitle { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-6); }

.idea-card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl);
  margin-bottom: var(--space-4); overflow: hidden;
  transition: box-shadow var(--transition-interactive), border-color var(--transition-interactive);
}
.idea-card:hover { box-shadow: var(--shadow-md); border-color: var(--color-primary-highlight); }

.idea-header {
  padding: var(--space-6); cursor: pointer; display: flex; align-items: flex-start; gap: var(--space-4);
  user-select: none;
}
.idea-number {
  width: 36px; height: 36px; border-radius: var(--radius-md); display: flex; align-items: center;
  justify-content: center; font-weight: 700; font-size: var(--text-sm); flex-shrink: 0;
  font-variant-numeric: tabular-nums lining-nums;
}
.idea-1 .idea-number { background: var(--color-primary-highlight); color: var(--color-primary); }
.idea-2 .idea-number { background: var(--color-blue-highlight); color: var(--color-blue); }
.idea-3 .idea-number { background: var(--color-purple-highlight); color: var(--color-purple); }

.idea-header-content { flex: 1; min-width: 0; }
.idea-title { font-size: var(--text-lg); font-weight: 700; letter-spacing: -0.01em; }
.idea-tagline { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-1); }
.idea-category {
  font-size: var(--text-xs); padding: var(--space-1) var(--space-2); border-radius: var(--radius-full);
  background: var(--color-surface-offset); color: var(--color-text-muted); font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.04em; margin-top: var(--space-2); display: inline-block;
}

.idea-expand {
  width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
  color: var(--color-text-faint); transition: transform var(--transition-interactive);
  flex-shrink: 0; margin-top: var(--space-1);
}
.idea-card.expanded .idea-expand { transform: rotate(180deg); }

.idea-body {
  max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.idea-card.expanded .idea-body { max-height: 2000px; }
.idea-body-inner { padding: 0 var(--space-6) var(--space-6); }
.idea-body-inner > div + div { margin-top: var(--space-5); }

.idea-section-label {
  font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-muted); margin-bottom: var(--space-2);
}
.idea-section-text { font-size: var(--text-sm); color: var(--color-text); line-height: 1.65; }

.gtm-steps { list-style: none; counter-reset: gtm; }
.gtm-step {
  counter-increment: gtm; font-size: var(--text-sm); padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-divider); display: flex; gap: var(--space-3);
  line-height: 1.55;
}
.gtm-step:last-child { border-bottom: none; }
.gtm-step::before {
  content: counter(gtm); font-family: var(--font-mono); font-size: var(--text-xs);
  width: 24px; height: 24px; border-radius: var(--radius-sm); display: flex; align-items: center;
  justify-content: center; background: var(--color-surface-offset); color: var(--color-text-muted);
  font-weight: 600; flex-shrink: 0; margin-top: 1px;
}

.idea-meta-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
@media (max-width: 640px) { .idea-meta-grid { grid-template-columns: 1fr; } }
.idea-meta-box {
  padding: var(--space-4); background: var(--color-surface-offset); border-radius: var(--radius-md);
}

/* Commits section */
.commits-section { margin-bottom: var(--space-8); }
.commits-title {
  font-size: var(--text-xs); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-muted); margin-bottom: var(--space-3);
}
.commit-list { display: flex; flex-direction: column; gap: 0; }
.commit-item {
  display: flex; align-items: flex-start; gap: var(--space-3); padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-divider); font-size: var(--text-xs);
}
.commit-item:last-child { border-bottom: none; }
.commit-sha {
  font-family: var(--font-mono); color: var(--color-primary); background: var(--color-primary-highlight);
  padding: var(--space-1) var(--space-2); border-radius: var(--radius-sm); flex-shrink: 0;
  font-weight: 500;
}
.commit-msg { flex: 1; color: var(--color-text); min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.commit-author { color: var(--color-text-muted); flex-shrink: 0; }
.commit-date { color: var(--color-text-faint); flex-shrink: 0; font-family: var(--font-mono); }

/* Footer */
.footer {
  padding: var(--space-6); text-align: center; border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs); color: var(--color-text-faint);
}

/* Animations */
.fade-up {
  opacity: 0; transform: translateY(0);
  animation: fadeUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes fadeUp { from { opacity: 0; } to { opacity: 1; transform: translateY(0); } }
.delay-1 { animation-delay: 0.05s; }
.delay-2 { animation-delay: 0.1s; }
.delay-3 { animation-delay: 0.15s; }
.delay-4 { animation-delay: 0.2s; }
.delay-5 { animation-delay: 0.25s; }

/* Mobile */
@media (max-width: 640px) {
  .header { padding: var(--space-3) var(--space-4); }
  .main { padding: var(--space-4); }
  .search-section { padding: var(--space-6) 0 var(--space-4); }
  .search-form { flex-direction: column; }
  .repo-header { flex-direction: column; gap: var(--space-3); padding: var(--space-4); }
  .repo-avatar { width: 44px; height: 44px; font-size: var(--text-lg); }
  .idea-header { padding: var(--space-4); gap: var(--space-3); }
  .idea-body-inner { padding: 0 var(--space-4) var(--space-4); }
  .commit-author, .commit-date { display: none; }
}

/* ===== LAB ADDITIONS ===== */
html { scroll-padding-top: calc(var(--lab-bar-h, 0px) + 4rem); }
.sim-note {
  max-width: 560px; margin: var(--space-6) auto 0; font-size: var(--text-xs); color: var(--color-text-muted);
  background: var(--color-surface-offset); border: 1px dashed var(--color-border); border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4); line-height: 1.55; text-align: left;
}
.quick-links-label { font-size: var(--text-xs); color: var(--color-text-faint); margin: var(--space-5) auto 0; max-width: none; }
.results-bar { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; margin-bottom: var(--space-4); }
.back-btn {
  font-size: var(--text-xs); padding: var(--space-2) var(--space-3); border-radius: var(--radius-md);
  border: 1px solid var(--color-border); color: var(--color-text-muted); transition: all var(--transition-interactive);
}
.back-btn:hover { background: var(--color-surface-dynamic); color: var(--color-text); }
.sim-badge {
  font-size: var(--text-xs); font-weight: 600; padding: var(--space-1) var(--space-3); border-radius: var(--radius-full);
  background: var(--color-gold-highlight); color: var(--color-gold); letter-spacing: 0.02em;
}
.repo-meta-note { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-2); }
.error-samples { display: flex; gap: var(--space-2); justify-content: center; flex-wrap: wrap; margin-top: var(--space-4); }
@media (max-width: 640px) {
  .commit-item { flex-wrap: wrap; }
  .commit-msg { white-space: normal; flex-basis: calc(100% - 5rem); }
}

.results-actions { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.action-btn {
  display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-xs); font-weight: 600;
  padding: var(--space-2) var(--space-3); border-radius: var(--radius-md); background: var(--color-primary); color: var(--color-text-inverse);
  transition: background var(--transition-interactive);
}
.action-btn:hover { background: var(--color-primary-hover); }
.shape-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: var(--space-4); margin-bottom: var(--space-8); align-items: stretch; }
.card-title-note { font-weight: 400; text-transform: none; letter-spacing: 0; color: var(--color-text-faint); margin-left: var(--space-2); }
.commit-chart { width: 100%; height: auto; display: block; }
.commit-chart .axis { stroke: var(--color-divider); }
.commit-chart .tick { fill: var(--color-text-faint); font-family: var(--font-mono); font-size: 10px; }
.commit-chart .bar { fill: var(--color-primary); }
.commit-chart .bar.zero { fill: var(--color-surface-dynamic); }
.chart-caption { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-2); max-width: none; }
.tag-folder { background: var(--color-surface-offset); color: var(--color-text-muted); border: 1px solid var(--color-divider); }
.idea-tools { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-5); }
.copy-brief {
  display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-xs); font-weight: 500;
  padding: var(--space-2) var(--space-3); border-radius: var(--radius-md); border: 1px solid var(--color-border); color: var(--color-text-muted);
  transition: all var(--transition-interactive);
}
.copy-brief:hover { background: var(--color-surface-dynamic); color: var(--color-text); }
.recent { margin-top: var(--space-2); }
.toast {
  position: fixed; left: 50%; bottom: 20px; transform: translate(-50%, 16px); opacity: 0; pointer-events: none; z-index: 60;
  background: var(--color-text); color: var(--color-bg); font-size: var(--text-xs); padding: var(--space-2) var(--space-4);
  border-radius: 9999px; box-shadow: var(--shadow-lg); transition: all 200ms ease; max-width: calc(100vw - 32px); text-align: center;
}
.toast.on { opacity: 1; transform: translate(-50%, 0); }
@media (max-width: 900px) {
  .shape-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) { .analysis-grid { grid-template-columns: 1fr; grid-template-areas: "stack" "infra" "patterns"; } }
/* 44px touch targets on touch screens and narrower layouts */
@media (max-width: 1024px), (pointer: coarse) {
  .quick-link, .back-btn, .action-btn, .copy-brief, .error-retry { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
  .theme-toggle { width: 44px; height: 44px; }
  .search-btn, .search-input { min-height: 48px; }
}

.gtm-step { max-width: none; } /* let the step dividers run the full width of the card */