/* ============================================================
   STR4TUM — c3ntr4l dashboard
   dark (default) + light theme · JetBrains Mono · leet palette
   mobile-first · row-layout cards
   ============================================================ */

:root {
  --bg:           #0a0a0a;
  --surface:      #111111;
  --surface-hi:   #161616;
  --border:       #222222;
  --border-hi:    #2c2c2c;
  --text:         #e0e0e0;
  --text-muted:   #666666;
  --text-dim:     #444444;

  /* accent colors — invariant across themes */
  --accent-green: #00ff88;
  --accent-amber: #ffaa00;
  --accent-blue:  #0099ff;
  --accent-red:   #ff4444;

  --radius: 2px;
}

:root[data-theme="light"] {
  --bg:           #f5f5f0;
  --surface:      #ffffff;
  --surface-hi:   #f0f0eb;
  --border:       #d8d8d0;
  --border-hi:    #c8c8c0;
  --text:         #1a1a1a;
  --text-muted:   #666666;
  --text-dim:     #999999;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.18s ease, color 0.18s ease;
}

::selection { background: var(--accent-green); color: #0a0a0a; }

a { color: var(--accent-blue); text-decoration: none; }
a:hover { color: var(--accent-green); }

/* ============================================================
   LAYOUT
   ============================================================ */

.container {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 16px;
}

main { flex: 1; }

/* ============================================================
   HEADER
   ============================================================ */

.site-header {
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  padding-bottom: 18px;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-green);
  letter-spacing: -0.5px;
  user-select: none;
}

.subtitle {
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 4px;
}

.header-actions {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.clock {
  font-size: 13px;
  color: var(--text);
  text-align: right;
  white-space: nowrap;
}

.clock-label { color: var(--text-muted); margin-right: 6px; }

.clock-value {
  color: var(--accent-green);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.clock-date {
  display: block;
  color: var(--text-dim);
  font-size: 11px;
  margin-top: 2px;
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 15px;
  width: 30px;
  height: 30px;
  border-radius: var(--radius);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  margin-top: 1px;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--accent-green);
  color: var(--accent-green);
  outline: none;
}

/* ============================================================
   CONTROLS — search only
   ============================================================ */

.controls {
  margin-bottom: 18px;
}

.search-wrap {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 12px;
  transition: border-color 0.12s ease, background-color 0.18s ease;
}

.search-wrap:focus-within { border-color: var(--accent-green); }

.search-input {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  padding: 7px 0;
  outline: none;
  min-width: 0;
}

.search-input::placeholder { color: var(--text-dim); }

.search-kbd {
  font-size: 11px;
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 2px;
  user-select: none;
  flex-shrink: 0;
}

/* ============================================================
   CATEGORY SECTIONS
   ============================================================ */

.category-section { margin-top: 24px; }
.category-section:first-of-type { margin-top: 0; }

.category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.category-line {
  flex: 1;
  height: 1px;
  background: var(--border);
}

.category-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text-muted);
}

/* ============================================================
   GRID + CARDS — single-column row layout
   ============================================================ */

.grid {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  min-height: unset;
  position: relative;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease, color 0.18s ease;
  text-align: left;
  color: inherit;
  font-family: inherit;
  width: 100%;
  min-width: 0; /* allow children to ellipsize */
}

.card:hover,
.card:focus-visible {
  border-color: var(--accent-green);
  background: var(--surface-hi);
  box-shadow: 0 0 0 1px var(--accent-green), 0 0 18px -10px var(--accent-green);
  outline: none;
}

.card-icon {
  font-size: 15px;
  line-height: 1;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.card-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 90px;
}

.card-description {
  font-size: 12px;
  color: var(--text-muted);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
}

.card-arrow {
  color: var(--text-dim);
  font-size: 12px;
  flex-shrink: 0;
  margin-left: auto;
  transition: color 0.15s ease, transform 0.15s ease;
}

.card:hover .card-arrow {
  color: var(--accent-green);
  transform: translateX(2px);
}

/* Empty state */
.empty {
  text-align: center;
  color: var(--text-muted);
  padding: 36px 16px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  font-size: 13px;
}

.empty-prompt { color: var(--accent-amber); }

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-dim);
  font-size: 12px;
  gap: 12px;
  flex-wrap: wrap;
}

.site-footer a { color: var(--text-muted); }
.site-footer a:hover { color: var(--accent-green); }

.version { color: var(--text-muted); }
.version-tag { color: var(--accent-green); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 480px) {
  .container { padding: 14px 12px; }

  .site-header { margin-bottom: 14px; padding-bottom: 14px; }
  .header-top { gap: 10px; }
  .logo { font-size: 18px; }
  .subtitle { display: none; }
  .clock-date { display: none; }
  .clock { text-align: right; }
  .header-actions { gap: 10px; }

  .category-section { margin-top: 20px; }
  .category-header { margin-bottom: 8px; }

  .card-name { min-width: 80px; }

  .search-kbd { display: none; }

  .site-footer { justify-content: center; }
  .site-footer .version { display: none; }
}

@media (max-width: 360px) {
  .card-name { min-width: 70px; }
  .card { gap: 8px; padding: 9px 10px; }
}