/* Lab900 Tools — shared theme
   Aligns styling across index + all tool pages. */

:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --panel-2: #f0f2f5;
  --border: #e1e5ea;
  --border-hi: #c9d1d9;
  --fg: #1f2328;
  --muted: #656d76;
  --accent: #2da44e;
  --accent-dim: #218739;
  --danger: #cf222e;
  --warning: #bf8700;
}

html[data-theme="dark"] {
  --bg: #16181d;
  --panel: #121822;
  --panel-2: #0f141c;
  --border: #1f2a38;
  --border-hi: #2d3e54;
  --fg: #e6edf3;
  --muted: #8b98a8;
  --accent: #7ee787;
  --accent-dim: #4ac26b;
  --danger: #ff7b72;
  --warning: #f0b429;
}

html {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

body {
  background-color: var(--bg);
  color: var(--fg);
}

.mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.accent { color: var(--accent); }
.muted  { color: var(--muted); }

::selection { background: var(--accent); color: #000; }

/* Panels / cards */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 1px 2px rgba(31, 35, 40, 0.04), 0 4px 12px -4px rgba(31, 35, 40, 0.08);
}
html[data-theme="dark"] .panel {
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.8);
}

.panel-2 {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
}

/* Chips */
.chip {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 2px;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

/* Site header (reused across tool pages) */
.site-header {
  max-width: 72rem;
  margin: 0 auto 1.5rem;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-header .home-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
  text-decoration: none;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  transition: border-color .15s, color .15s, background-color .15s;
}
.site-header .home-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(126, 231, 135, 0.05);
}
.site-header .home-link i[data-lucide] { width: 16px; height: 16px; }

.site-header .logo-link {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}
.site-header .logo-link img {
  height: 28px;
}

/* Theme-aware logo variants.
   Use class="logo-light" for the white logo (shown in dark mode),
   and class="logo-dark" for the dark logo (shown in light mode, default).
   Note: rules below match specificity of .site-header .logo-link img. */
.site-header .logo-link img.logo-light,
img.logo-light { display: none; }
.site-header .logo-link img.logo-dark,
img.logo-dark { display: block; }
html[data-theme="dark"] .site-header .logo-link img.logo-light,
html[data-theme="dark"] img.logo-light { display: block; }
html[data-theme="dark"] .site-header .logo-link img.logo-dark,
html[data-theme="dark"] img.logo-dark { display: none; }

.site-header .page-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.site-header .prompt {
  color: var(--accent);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn:hover {
  border-color: var(--border-hi);
  background: rgba(255, 255, 255, 0.03);
}

.btn-primary {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(126, 231, 135, 0.08);
}
.btn-primary:hover {
  background: var(--accent);
  color: #0b0f14;
}

.btn-ghost {
  border-color: transparent;
  color: var(--muted);
}
.btn-ghost:hover {
  color: var(--fg);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--muted);
  cursor: pointer;
  transition: color .15s, border-color .15s, background-color .15s;
}
.btn-icon:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* Inputs / textareas / selects */
.tt-input,
textarea.tt-input,
select.tt-input,
input.tt-input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  background: var(--panel);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.875rem;
  line-height: 1.5;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.tt-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(126, 231, 135, 0.15);
}
.tt-input::placeholder { color: #a4adb6; }

/* In dark mode, match the Ace "tomorrow_night" editor surface:
   slightly elevated bg with a more visible border. */
html[data-theme="dark"] .tt-input,
html[data-theme="dark"] textarea.tt-input,
html[data-theme="dark"] select.tt-input,
html[data-theme="dark"] input.tt-input {
  background: #1d1f21;
  border-color: #2a3242;
}
html[data-theme="dark"] .tt-input::placeholder { color: #6b7480; }

/* Section labels */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.5rem;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

/* Page container helper */
.page {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
}

/* Scrollbar polish (dark) */
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
*::-webkit-scrollbar-thumb:hover { background: var(--border-hi); }