:root {
  /* Fond & surfaces */
  --bg: #F5F4FB;
  --surface: #FFFFFF;
  --surface-tint: #FBFAFF;

  /* Encre */
  --ink: #1A1A2E;
  --ink-soft: #6B6B85;
  --border: #E6E3F5;
  --border-strong: #D2CDEE;

  /* Couleurs de marque */
  --violet: #6C5CE7;
  --violet-dark: #5645D6;
  --teal: #00C2A8;
  --coral: #FF5C7A;
  --amber: #FFB020;
  --blue: #4D96FF;

  --violet-soft: #EFEBFD;
  --danger: #E63950;
  --danger-soft: #FCE3E7;

  /* Typo */
  --font-display: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow-soft: 0 2px 10px rgba(108, 92, 231, 0.07);
  --shadow-card: 0 6px 20px rgba(26, 26, 46, 0.07);
  --shadow-panel: 0 20px 60px rgba(26, 26, 46, 0.25);

  /* Palette d'étiquettes (8 teintes, assignées par hachage du nom) */
  --tag-0-bg: #EFEBFD; --tag-0-fg: #6C5CE7;
  --tag-1-bg: #E2FBF6; --tag-1-fg: #00897A;
  --tag-2-bg: #FFE9ED; --tag-2-fg: #E63950;
  --tag-3-bg: #FFF4E0; --tag-3-fg: #B8740A;
  --tag-4-bg: #E8F1FF; --tag-4-fg: #2D6FE0;
  --tag-5-bg: #FCE9F7; --tag-5-fg: #C23B96;
  --tag-6-bg: #EEF6DE; --tag-6-fg: #5B8A1B;
  --tag-7-bg: #FFE9E1; --tag-7-fg: #D9541F;

  /* Palette de types de note (6 teintes pleines, assignées par hachage du nom) */
  --type-0: #6C5CE7;
  --type-1: #00A896;
  --type-2: #E63950;
  --type-3: #C97A0C;
  --type-4: #2D6FE0;
  --type-5: #1A1A2E;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
}

h1, h2, h3 { font-family: var(--font-display); margin: 0; }

button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }

.muted { color: var(--ink-soft); }
.small { font-size: 0.82rem; }

/* ===== Mise en page générale ===== */
.app { min-height: 100vh; display: flex; flex-direction: column; }

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 30px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 14px; }

.brand-mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 3px;
  padding: 4px;
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.brand-mark span { border-radius: 4px; }
.brand-mark span:nth-child(1) { background: var(--violet); }
.brand-mark span:nth-child(2) { background: var(--teal); }
.brand-mark span:nth-child(3) { background: var(--amber); }
.brand-mark span:nth-child(4) { background: var(--coral); }

.brand-text h1 {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  background: linear-gradient(100deg, var(--violet), var(--coral) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-text p { margin: 2px 0 0; font-size: 0.82rem; color: var(--ink-soft); }

.app-body {
  flex: 1;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
  align-items: start;
}

/* ===== Sidebar ===== */
.sidebar {
  position: sticky;
  top: 77px;
  align-self: start;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 24px 22px;
  min-height: calc(100vh - 77px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field label { font-size: 0.74rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); }
.field-label-row { display: flex; align-items: center; justify-content: space-between; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; min-width: 0; }
.field-row.three { grid-template-columns: 1fr 1fr 1fr; }
.field-row > div { min-width: 0; }

input[type="text"], input[type="search"], input[type="date"], textarea {
  width: 100%;
  min-width: 0;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  background: var(--surface-tint);
  color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
/* Les sélecteurs de date ont une taille de contenu incompressible dans les
   navigateurs (icône + segments) : on réduit le padding et la taille de
   police pour qu'ils restent dans la largeur de la colonne de gauche */
input[type="date"] {
  padding: 9px 6px;
  font-size: 0.82rem;
}
input[type="text"]:hover, input[type="search"]:hover, input[type="date"]:hover { border-color: var(--violet); }
input:focus, textarea:focus, select:focus, button:focus-visible {
  outline: none;
  border-color: var(--violet);
  box-shadow: 0 0 0 3px var(--violet-soft);
}

select {
  width: 100%;
  min-width: 0;
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  background: var(--surface-tint);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
select:hover { border-color: var(--violet); }

.type-badge {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 3px 10px;
  border-radius: 999px;
  color: #fff;
  white-space: nowrap;
  display: inline-block;
}

.new-type-row { display: flex; gap: 6px; margin-top: 8px; }
.new-type-row input { flex: 1; min-width: 0; }
.btn-small { padding: 7px 12px; font-size: 0.78rem; }

.tag-filter-input {
  margin-bottom: 8px;
}
.tag-cloud { display: flex; flex-wrap: wrap; gap: 7px; }
.tag-cloud-hint { font-size: 0.72rem; color: var(--ink-soft); margin: 6px 0 0; }
.tag-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  cursor: pointer;
  border: 1.5px solid transparent;
  white-space: nowrap;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}
.tag-pill:hover { transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.tag-pill.active { box-shadow: 0 0 0 2px currentColor inset; }

.link-btn {
  background: none; border: none; color: var(--coral);
  font-size: 0.76rem; font-weight: 600; cursor: pointer; padding: 0; text-decoration: underline;
}

.sidebar-footer { margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--border); }

/* ===== Boutons ===== */
.btn {
  border: 1.5px solid var(--ink);
  background: var(--surface);
  color: var(--ink);
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.86rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: transform 0.08s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn-primary {
  background: linear-gradient(100deg, var(--violet), var(--coral) 130%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(108, 92, 231, 0.35);
}
.btn-primary:hover { opacity: 0.92; box-shadow: 0 8px 20px rgba(108, 92, 231, 0.45); }
.btn-ghost { background: transparent; border-color: var(--border-strong); color: var(--ink-soft); }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { opacity: 0.9; }
.btn-block { width: 100%; justify-content: center; }
.plus { font-size: 1.1rem; line-height: 1; }

/* ===== Liste de notes ===== */
.note-list {
  padding: 26px 30px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
  align-content: start;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 70px 20px;
  color: var(--ink-soft);
}
.empty-state h3 { font-family: var(--font-display); margin-bottom: 6px; color: var(--ink); }

.note-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 9px;
  transition: transform 0.14s ease, box-shadow 0.14s ease, border-color 0.14s ease;
}
.note-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: var(--card-accent, linear-gradient(90deg, var(--violet), var(--teal)));
}
.note-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); border-color: var(--border-strong); }

.ref-stamp {
  position: absolute;
  top: 14px;
  right: 16px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  background: var(--surface-tint);
  padding: 2px 9px;
  border-radius: 999px;
}

.note-card-title { font-family: var(--font-display); font-size: 1.08rem; font-weight: 700; padding-right: 78px; margin-top: 4px; }

.note-meta {
  font-size: 0.78rem;
  color: var(--ink-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
}
.note-meta b { color: var(--ink); font-weight: 700; }

.note-excerpt { font-size: 0.86rem; color: var(--ink-soft); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.note-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.note-tags .tag-pill { font-size: 0.68rem; padding: 3px 10px; cursor: default; }

.note-footer-row { display: flex; align-items: center; justify-content: space-between; margin-top: 4px; font-size: 0.76rem; color: var(--ink-soft); }
.attachment-badge { display: inline-flex; align-items: center; gap: 4px; }

/* ===== Overlays / panneaux ===== */
.overlay {
  position: fixed; inset: 0; background: rgba(26, 26, 46, 0.5);
  backdrop-filter: blur(2px);
  display: flex; align-items: stretch; justify-content: flex-end; z-index: 50;
}
.overlay[hidden] { display: none; }

.panel {
  background: var(--bg);
  width: 100%;
  max-width: 640px;
  height: 100%;
  overflow-y: auto;
  padding: 32px 36px 60px;
  position: relative;
  box-shadow: var(--shadow-panel);
  transition: max-width 0.22s ease;
}

/* État étendu : le panneau occupe toute la largeur, activé par le bouton d'agrandissement */
.panel.panel-wide {
  max-width: none;
}

.panel.panel-wide #detail-content,
.panel.panel-wide #note-form,
.panel.panel-wide #form-title {
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.confirm-panel {
  margin: auto;
  max-width: 380px;
  height: auto;
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  background: var(--surface);
}

.panel-close {
  position: absolute; top: 20px; right: 22px;
  background: var(--surface-tint); border: 1px solid var(--border); border-radius: 50%;
  width: 32px; height: 32px;
  font-size: 1.3rem; line-height: 1;
  cursor: pointer; color: var(--ink-soft);
  display: flex; align-items: center; justify-content: center;
}
.panel-close:hover { color: var(--ink); border-color: var(--border-strong); }

.panel-expand {
  position: absolute; top: 20px; right: 64px;
  background: var(--surface-tint); border: 1px solid var(--border); border-radius: 50%;
  width: 32px; height: 32px;
  cursor: pointer; color: var(--ink-soft);
  display: flex; align-items: center; justify-content: center;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.panel-expand:hover { color: var(--violet); border-color: var(--violet); }
.panel-expand svg { width: 16px; height: 16px; }

/* ===== Détail d'une note ===== */
.detail-header { margin-bottom: 18px; padding-right: 30px; }
.detail-ref {
  font-family: var(--font-mono); font-size: 0.76rem; font-weight: 700; color: var(--violet);
  background: var(--violet-soft);
  display: inline-block; padding: 4px 11px; border-radius: 999px; margin-bottom: 12px;
}
.detail-header h2 { font-size: 1.6rem; margin-bottom: 8px; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 0.84rem; color: var(--ink-soft); }
.detail-meta b { color: var(--ink); }
.detail-tags { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 7px; }
.detail-body {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-top: 18px;
  box-shadow: var(--shadow-soft);
}
.detail-body :first-child { margin-top: 0; }
.detail-actions { display: flex; gap: 10px; margin-top: 22px; }

.attachments-block { margin-top: 24px; }
.attachments-block h3 { font-size: 0.86rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); margin-bottom: 10px; }

.attachment-list { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-direction: column; gap: 7px; }
.attachment-item {
  display: flex; align-items: center; justify-content: space-between;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 9px 13px; font-size: 0.84rem; background: var(--surface);
}
.attachment-item a { color: var(--violet); text-decoration: none; font-weight: 600; }
.attachment-item a:hover { text-decoration: underline; }
.attachment-size { color: var(--ink-soft); font-size: 0.76rem; font-family: var(--font-mono); display: flex; align-items: center; gap: 8px; }
.attachment-remove { background: none; border: none; color: var(--danger); cursor: pointer; font-size: 0.78rem; font-weight: 600; }

/* ===== Formulaire ===== */
.form-panel h2 { font-size: 1.4rem; margin-bottom: 22px; font-weight: 800; }
#note-form { display: flex; flex-direction: column; gap: 18px; }
.req { color: var(--coral); }

.author-fieldset { border: 1.5px solid var(--border); border-radius: var(--radius); padding: 15px 15px 17px; background: var(--surface-tint); }
.author-fieldset legend { font-size: 0.74rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-soft); padding: 0 6px; }

#editor-container { background: var(--surface); border-radius: var(--radius-sm); }
.ql-toolbar.ql-snow { border-color: var(--border-strong); border-top-left-radius: var(--radius-sm); border-top-right-radius: var(--radius-sm); background: var(--surface-tint); }
.ql-container.ql-snow { border-color: var(--border-strong); border-bottom-left-radius: var(--radius-sm); border-bottom-right-radius: var(--radius-sm); min-height: 180px; font-family: var(--font-body); font-size: 0.95rem; }

.chip-input {
  display: flex; flex-wrap: wrap; gap: 7px; align-items: center;
  border: 1.5px solid var(--border-strong); border-radius: var(--radius-sm);
  padding: 8px 10px; background: var(--surface);
}
.chip-input input { border: none; outline: none; flex: 1; min-width: 140px; padding: 4px; background: transparent; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--violet-soft); color: var(--violet-dark);
  font-family: var(--font-mono); font-size: 0.74rem; font-weight: 600;
  padding: 5px 7px 5px 11px; border-radius: 999px;
}
.chip button { background: none; border: none; cursor: pointer; color: var(--violet-dark); font-size: 0.95rem; line-height: 1; padding: 0 2px; }

.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  background: var(--surface);
  cursor: pointer;
  color: var(--ink-soft);
  font-size: 0.86rem;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.dropzone.dragover { border-color: var(--violet); background: var(--violet-soft); color: var(--violet-dark); }
.dropzone strong { color: var(--ink); }

.form-error {
  background: var(--danger-soft); color: var(--danger);
  border-radius: var(--radius-sm); padding: 11px 14px; font-size: 0.84rem; font-weight: 600;
}

.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }

/* ===== Toast ===== */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff;
  padding: 12px 22px; border-radius: 999px;
  font-size: 0.86rem; font-weight: 600; z-index: 100;
  box-shadow: 0 10px 28px rgba(26,26,46,0.3);
}
.toast.error { background: var(--danger); }

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .app-body { grid-template-columns: 1fr; }
  .sidebar { position: relative; top: 0; min-height: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .overlay { left: 0; }
  .panel { max-width: 100% !important; padding: 26px 20px 50px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}