/* Thème via variables CSS. Par défaut: clair.
   data-theme="light" | "dark" | (system via JS -> on choisit light/dark) */

:root {
  color-scheme: light;

  --bg: #f2f2f2;
  --panel: #ffffff;
  --text: #121212;
  --muted: #4b4b4b;
  --border: rgba(0,0,0,0.12);

  --primary: #2f6feb;
  --primaryText: #ffffff;

  --danger: #d9534f;
  --dangerText: #ffffff;

  --shadow: 0 10px 30px rgba(0,0,0,0.08);

  --focus: rgba(47, 111, 235, 0.35);

  --codeBg: rgba(0,0,0,0.05);
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #101215;
  --panel: #171a1f;
  --text: #e9e9ea;
  --muted: #a9abb3;
  --border: rgba(255,255,255,0.14);

  --primary: #5a9bff;
  --primaryText: #071018;

  --danger: #ff6b63;
  --dangerText: #101215;

  --shadow: 0 12px 32px rgba(0,0,0,0.35);

  --focus: rgba(90, 155, 255, 0.35);

  --codeBg: rgba(255,255,255,0.08);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 10;
  transition: top 160ms ease;
}

.skip-link:focus {
  top: 10px;
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 18px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.logo{
  width: 70px;
  height: auto;
  border-radius: 90px;
  display: grid;
  place-items: center;
  display: block;
}

h1 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0.2px;
}

.subtitle {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.theme {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-label {
  color: var(--muted);
  font-size: 14px;
}

.container {
  width: min(1100px, 92vw);
  margin: 22px auto 42px;
  display: grid;
  gap: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 16px;
}

.card h2 {
  margin: 0 0 12px;
  font-size: 18px;
}

textarea {
  width: 100%;
  min-height: 180px;
  resize: vertical;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 14.5px;
  outline: none;
}

textarea:focus {
  box-shadow: 0 0 0 4px var(--focus);
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
  align-items: center;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 60ms ease, background 120ms ease, border-color 120ms ease;
}

.btn:hover {
  background: color-mix(in srgb, var(--panel) 65%, var(--primary) 10%);
  border-color: color-mix(in srgb, var(--border) 70%, var(--primary) 30%);
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.btn.primary {
  background: var(--primary);
  color: var(--primaryText);
  border-color: color-mix(in srgb, var(--primary) 65%, var(--border));
}

.btn.danger {
  background: var(--danger);
  color: var(--dangerText);
  border-color: color-mix(in srgb, var(--danger) 65%, var(--border));
}

.help {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13.5px;
}

code {
  background: var(--codeBg);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12.5px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; align-items: flex-start; }
}

.stat {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: color-mix(in srgb, var(--panel) 90%, var(--bg) 10%);
}

.stat-label {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.subcard {
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  background: color-mix(in srgb, var(--panel) 92%, var(--bg) 8%);
}

.subcard h3 {
  margin: 0 0 10px;
  font-size: 16px;
}

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

.muted { color: var(--muted); font-size: 14px; }

select {
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
}

.checkbox {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-size: 14px;
  user-select: none;
}

.checkbox input {
  accent-color: var(--primary);
}

.top-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.top-list li {
  color: var(--text);
}

.top-list .word {
  font-weight: 800;
}

.top-list .count {
  color: var(--muted);
  font-weight: 600;
  margin-left: 8px;
}

.empty {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}