/* Koder Type — typability analyzer */

:root {
  color-scheme: light;
  --bg:       #ffffff;
  --bg-alt:   #f8fafc;
  --bg-card:  #ffffff;
  --fg:       #0f172a;
  --fg-mute:  #475569;
  --fg-dim:   #94a3b8;
  --border:   #e2e8f0;
  --accent:   #0891b2;
  --accent-2: #06b6d4;
  --accent-fg:#ffffff;
  --shadow:   0 1px 2px rgba(15,23,42,0.04), 0 8px 24px rgba(15,23,42,0.06);
  --r-excellent: #10b981;
  --r-great:     #22c55e;
  --r-good:      #84cc16;
  --r-ok:        #eab308;
  --r-bad:       #ef4444;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg:       #0b1020;
  --bg-alt:   #11162a;
  --bg-card:  #161b33;
  --fg:       #f1f5f9;
  --fg-mute:  #94a3b8;
  --fg-dim:   #64748b;
  --border:   #1f2540;
  --accent:   #22d3ee;
  --accent-2: #06b6d4;
  --accent-fg:#0b1020;
  --shadow:   0 1px 2px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.4);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background .2s, color .2s;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  text-decoration: none;
  font-size: 1rem;
}
.brand strong { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-mute);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.theme-toggle:hover { color: var(--fg); border-color: var(--accent); }
.theme-toggle svg { display: none; }
:root:not([data-theme="dark"]) .theme-toggle .i-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: block; }

.main {
  flex: 1;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 .5rem;
}
.hero .lead {
  font-size: 1.05rem;
  color: var(--fg-mute);
  max-width: 720px;
  margin: 0 0 2rem;
}

.input-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 28px;
}
.input-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
}
.input-label .hint {
  color: var(--fg-dim);
  font-weight: 400;
  font-size: .88rem;
}
textarea {
  width: 100%;
  min-height: 120px;
  padding: 12px 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 1rem;
  line-height: 1.5;
  background: var(--bg-alt);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  resize: vertical;
  outline: none;
  transition: border-color .15s;
}
textarea:focus { border-color: var(--accent); }

.controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.layout-picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .92rem;
  color: var(--fg-mute);
}
.layout-picker select {
  padding: 6px 10px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg);
  font-size: .92rem;
}

.btn {
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  color: var(--fg);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .1s;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
}

.results h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 14px;
}
.results .muted.small { font-size: .85rem; font-weight: 400; color: var(--fg-dim); }

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  font-size: .92rem;
}
th, td {
  padding: 10px 12px;
  text-align: center;
  vertical-align: middle;
  border-bottom: 1px solid var(--border);
}
td.word { text-align: left; }
th {
  background: var(--bg-alt);
  font-weight: 600;
  color: var(--fg-mute);
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .04em;
}
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--accent); }
th.sortable.active { color: var(--accent); }
.sort-indicator { margin-left: 4px; font-size: .75rem; }
tbody tr:last-child td { border-bottom: none; }
.word { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-weight: 600; }
.score { font-variant-numeric: tabular-nums; }
.sfbs code {
  display: inline-block;
  padding: 1px 6px;
  margin: 0 2px;
  font-size: .82rem;
  background: rgba(239,68,68,0.15);
  color: var(--r-bad);
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.muted { color: var(--fg-dim); }

tbody tr.main-row.r-excellent td:first-child { border-left: 3px solid var(--r-excellent); }
tbody tr.main-row.r-great     td:first-child { border-left: 3px solid var(--r-great); }
tbody tr.main-row.r-good      td:first-child { border-left: 3px solid var(--r-good); }
tbody tr.main-row.r-ok        td:first-child { border-left: 3px solid var(--r-ok); }
tbody tr.main-row.r-bad       td:first-child { border-left: 3px solid var(--r-bad); }

.drop-warn {
  display: inline-block;
  margin-left: 6px;
  color: var(--r-ok);
  font-size: .9em;
  cursor: help;
}
tbody tr.main-row { cursor: pointer; }
tbody tr.main-row:hover { background: var(--bg-alt); }
tbody tr.main-row:focus { outline: 2px solid var(--accent); outline-offset: -2px; }
tbody tr.main-row .row-toggle {
  display: inline-block;
  width: 14px;
  color: var(--fg-dim);
  font-size: .75rem;
  transition: transform .15s ease;
}
tbody tr.main-row.expanded .row-toggle { color: var(--accent); }

tbody tr.detail-row > td {
  padding: 0;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}
.detail-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  padding: 18px;
}
@media (max-width: 1100px) {
  .detail-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .detail-grid { grid-template-columns: 1fr; }
}
.detail-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  border-left-width: 3px;
}
.detail-card.r-excellent { border-left-color: var(--r-excellent); }
.detail-card.r-great     { border-left-color: var(--r-great); }
.detail-card.r-good      { border-left-color: var(--r-good); }
.detail-card.r-ok        { border-left-color: var(--r-ok); }
.detail-card.r-bad       { border-left-color: var(--r-bad); }
.detail-card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}
.detail-card h4 {
  margin: 0;
  font-size: 1rem;
  color: var(--fg);
}
.detail-score {
  font-size: .82rem;
  color: var(--fg-mute);
  font-variant-numeric: tabular-nums;
}
.detail-score strong { color: var(--fg); font-size: 1.05rem; }
.detail-help {
  font-size: .78rem;
  color: var(--fg-dim);
  margin: 0 0 10px;
  line-height: 1.45;
}
.criteria {
  list-style: none;
  padding: 0;
  margin: 0 0 10px;
  font-size: .85rem;
}
.criteria li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto auto;
  column-gap: 10px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
}
.criteria li:last-child { border-bottom: none; }
.c-label {
  grid-column: 1;
  grid-row: 1;
  font-weight: 600;
  color: var(--fg);
}
.c-detail {
  grid-column: 1;
  grid-row: 2;
  font-size: .78rem;
  color: var(--fg-dim);
}
.c-delta {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  font-size: .88rem;
  min-width: 44px;
  text-align: right;
}
.c-delta.c-neutral { color: var(--fg-dim); }
.c-delta.c-penalty { color: var(--r-bad); }
.c-delta.c-bonus   { color: var(--r-excellent); }
.detail-raw {
  margin: 4px 0 0;
  font-size: .72rem;
  color: var(--fg-dim);
  font-style: italic;
}

.results-actions {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 8px;
}
.btn-link {
  background: none;
  border: none;
  color: var(--accent);
  font-size: .85rem;
  cursor: pointer;
  padding: 4px 8px;
}
.btn-link:hover { text-decoration: underline; }

.finger-load {
  margin-top: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}
.finger-load h3 { margin: 0 0 14px; font-size: 1.05rem; }
.fl-grid { display: grid; gap: 8px; }
.fl-row { display: grid; grid-template-columns: 120px 1fr 90px; align-items: center; gap: 12px; font-size: .88rem; }
.fl-name { color: var(--fg-mute); }
.fl-bar { height: 12px; background: var(--bg-alt); border-radius: 6px; overflow: hidden; }
.fl-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.fl-val { color: var(--fg-dim); font-variant-numeric: tabular-nums; text-align: right; }

.about {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  color: var(--fg-mute);
}
.about h2 { color: var(--fg); font-size: 1.25rem; margin: 0 0 12px; }
.about code, .about pre { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.about .formula {
  background: var(--bg-alt);
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  overflow-x: auto;
  font-size: .9rem;
}
.about ul { padding-left: 1.25rem; }
.about a { color: var(--accent); }
.about .credit { font-size: .85rem; color: var(--fg-dim); margin-top: 24px; }

footer {
  border-top: 1px solid var(--border);
  background: var(--bg-alt);
  padding: 24px;
  text-align: center;
}

/* ===== Ecosystem footer nav ===== */
.koder-eco-nav-inner { max-width: 960px; margin: 0 auto; }
.koder-eco-breadcrumb { font-size: 13px; color: var(--fg-dim); margin-bottom: 10px; }
.koder-eco-breadcrumb a { color: var(--fg-dim); text-decoration: none; }
.koder-eco-breadcrumb a:hover { color: var(--accent); text-decoration: underline; }
.koder-eco-sep { margin: 0 6px; opacity: .5; }
.koder-eco-links { display: inline-flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.koder-eco-links a {
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--fg-mute);
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
}
.koder-eco-links a:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 640px) {
  .hero h1 { font-size: 1.75rem; }
  th, td { padding: 8px 10px; font-size: .85rem; }
  .fl-row { grid-template-columns: 80px 1fr 70px; font-size: .78rem; }
}