/* MemoIA — cahier bleu, encre marine, un seul accent : le surligneur des concepts. */

@font-face { font-family: 'Literata'; src: url('fonts/literata-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Literata'; src: url('fonts/literata-latin-400-italic.woff2') format('woff2'); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: 'Literata'; src: url('fonts/literata-latin-600-normal.woff2') format('woff2'); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: 'Atkinson Hyperlegible'; src: url('fonts/atkinson-hyperlegible-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Atkinson Hyperlegible'; src: url('fonts/atkinson-hyperlegible-latin-700-normal.woff2') format('woff2'); font-weight: 700; font-display: swap; }

:root {
  --paper: #F3F6FB;
  --sheet: #FFFFFF;
  --ink: #1C2640;
  --ink-2: #566079;
  --rule: #D9DFEA;
  --pen: #2C46C9;
  --pen-ink: #FFFFFF;
  --marker: #FFE45C;
  --marker-ink: #1C2640;
  --alert: #A8261C;
  --rec: #C62D22;
  --serif: 'Literata', Georgia, 'Times New Roman', serif;
  --sans: 'Atkinson Hyperlegible', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --step--1: 0.875rem;
  --step-0: 1rem;
  --step-1: 1.1875rem;
  --step-2: 1.5rem;
  --radius: 10px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0F131C;
    --sheet: #161B26;
    --ink: #E5E9F1;
    --ink-2: #9AA3B6;
    --rule: #2A3142;
    --pen: #8FA0FF;
    --pen-ink: #0F131C;
    --marker: #E9CF45;
    --marker-ink: #12161F;
    --alert: #FF8A80;
    --rec: #FF6B5F;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: var(--step-0)/1.5 var(--sans);
}
:focus-visible { outline: 3px solid var(--pen); outline-offset: 2px; border-radius: 4px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- barre du haut + onglets ---------- */
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 12px max(16px, env(safe-area-inset-left)) 12px max(16px, env(safe-area-inset-right));
  max-width: 1200px; margin: 0 auto;
}
.wordmark { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 600 var(--step-1)/1 var(--serif); }
.ai-status { margin: 0 0 0 auto; font-size: var(--step--1); color: var(--ink-2); text-align: right; }
.tabs { display: flex; gap: 4px; }
.tab {
  display: inline-flex; align-items: center; gap: 6px; background: none; border: 0; cursor: pointer;
  font: 700 var(--step--1)/1 var(--sans); color: var(--ink-2); padding: 10px 12px; border-radius: 8px;
}
.tab svg { width: 18px; height: 18px; }
.tab:hover { color: var(--ink); }
.tab[aria-current="page"] { color: var(--ink); background: var(--sheet); box-shadow: inset 0 -2px 0 var(--pen); }

/* ---------- mise en page ---------- */
main { max-width: 1200px; margin: 0 auto; }
.layout {
  padding: 8px 16px 64px;
  display: grid; gap: 32px; grid-template-columns: minmax(0, 1fr);
}
.view[hidden] { display: none; }
.soon { padding: 24px 16px 96px; max-width: 40rem; color: var(--ink-2); }
.soon h2 { color: var(--ink); }
.fab { display: none; }
.composer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.composer-head h1 { margin: 0; }
.composer .composer-close { display: none; }

/* Ordinateur : saisie à gauche (défile seule si elle dépasse), bibliothèque à droite. */
@media (min-width: 900px) {
  .layout { grid-template-columns: minmax(0, 28rem) minmax(0, 1fr); gap: 48px; align-items: start; }
  .composer { position: sticky; top: 12px; max-height: calc(100vh - 24px); overflow-y: auto; overscroll-behavior: contain; }
}

/* Téléphone : bibliothèque en plein écran, bouton « Nouvelle note » en bas, onglets en barre du bas. */
@media (max-width: 899px) {
  .topbar { padding-top: max(10px, env(safe-area-inset-top)); padding-bottom: 6px; }
  .ai-status { font-size: 0.75rem; max-width: 55%; }
  .tabs {
    position: fixed; z-index: 20; left: 0; right: 0; bottom: 0; justify-content: space-around; gap: 0;
    background: var(--sheet); border-top: 1px solid var(--rule); padding: 4px 8px max(4px, env(safe-area-inset-bottom));
  }
  .tab { flex-direction: column; gap: 3px; font-size: 0.75rem; padding: 6px 12px; flex: 1; }
  .tab svg { width: 22px; height: 22px; }
  .tab[aria-current="page"] { background: none; box-shadow: none; color: var(--pen); }
  .layout { padding-bottom: 150px; }
  .composer { display: none; }
  body.composing .composer {
    display: block; position: fixed; z-index: 30; inset: 0; overflow-y: auto; border: 0; border-radius: 0;
    padding: max(16px, env(safe-area-inset-top)) 16px max(24px, env(safe-area-inset-bottom));
  }
  body.composing .composer .composer-close { display: inline-flex; }
  body.composing { overflow: hidden; }
  body[data-view="notes"]:not(.composing) .fab {
    display: inline-flex; position: fixed; z-index: 25; right: 16px; bottom: calc(72px + env(safe-area-inset-bottom));
    align-items: center; gap: 8px; border: 0; cursor: pointer; border-radius: 999px; padding: 14px 20px;
    background: var(--pen); color: var(--pen-ink); font: 700 var(--step-0)/1 var(--sans);
    box-shadow: 0 6px 18px rgba(28, 38, 64, 0.28);
  }
  .toast { bottom: calc(80px + env(safe-area-inset-bottom)); }
}

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; line-height: 1.25; margin: 0; }
h1 { font-size: var(--step-2); margin-bottom: 16px; }
h2 { font-size: var(--step-2); margin-bottom: 20px; }

/* ---------- feuille de saisie ---------- */
.composer {
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 24px;
}
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field-row { display: flex; gap: 12px; flex-wrap: wrap; }
.field-row .field { flex: 0 0 auto; }
.field-row .grow { flex: 1 1 12rem; }
label, legend { font-weight: 700; font-size: var(--step--1); }
.optional { font-weight: 400; color: var(--ink-2); }
input, select, textarea {
  font: inherit; color: var(--ink); background: var(--sheet);
  border: 1px solid var(--rule); border-radius: 8px; padding: 10px 12px; width: 100%;
}
select { padding-right: 32px; }
textarea {
  font-family: var(--serif); font-size: var(--step-0); line-height: 1.7; resize: vertical; min-height: 12rem;
  background-image: linear-gradient(transparent calc(1.7em - 1px), var(--rule) calc(1.7em - 1px), var(--rule) 1.7em, transparent 1.7em);
  background-size: 100% 1.7em; background-position: 0 calc(10px + 0.05em); background-attachment: local;
}
.new-source { border: 1px dashed var(--rule); border-radius: 8px; margin: 0 0 16px; padding: 12px 14px 0; }
.new-source legend { padding: 0 6px; }

.origin { margin-top: 16px; margin-bottom: 0; }
.origin input::placeholder { color: var(--ink-2); font-style: italic; }
.live { margin: 10px 0 0; color: var(--ink-2); opacity: .75; font-family: var(--serif); line-height: 1.6; }
.live-dots { animation: pulse 1.2s ease-in-out infinite; }

.dictation { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.lang select { width: auto; border-color: transparent; background: transparent; color: var(--ink-2); padding-left: 6px; }
.rec-time { font-variant-numeric: tabular-nums; color: var(--rec); font-weight: 700; }
.hint { margin: 8px 0 0; min-height: 1.5em; font-size: var(--step--1); color: var(--ink-2); }
.form-error { margin: 8px 0 0; min-height: 0; color: var(--alert); font-weight: 700; font-size: var(--step--1); }
.form-error:empty { display: none; }

.progress { height: 4px; background: var(--rule); border-radius: 2px; overflow: hidden; margin-top: 10px; }
.progress span { display: block; height: 100%; width: 0; background: var(--pen); transition: width .2s linear; }

/* ---------- boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 700 var(--step--1)/1 var(--sans); border-radius: 8px; padding: 11px 16px; cursor: pointer;
  border: 1px solid transparent; text-decoration: none;
}
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-small { padding: 8px 12px; background: var(--pen); color: var(--pen-ink); }
.btn-small.btn-quiet { background: transparent; color: var(--ink); }
.icon-btn { display: inline-flex; align-items: center; justify-content: center; background: none; border: 0; color: var(--ink-2); cursor: pointer; padding: 8px; border-radius: 8px; }
.icon-btn:hover { color: var(--ink); background: var(--paper); }
.icon-btn.small { padding: 4px; }
.link-btn { background: none; border: 0; padding: 6px 0; cursor: pointer; color: var(--pen); font: 700 var(--step--1) var(--sans); }
.link-btn.danger { color: var(--alert); }
.btn-primary { background: var(--pen); color: var(--pen-ink); width: 100%; margin-top: 16px; padding: 14px 16px; font-size: var(--step-0); }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-quiet:hover { border-color: var(--ink-2); }
.btn.recording { color: var(--rec); border-color: var(--rec); }
.btn.recording svg { animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.file-btn { position: relative; overflow: hidden; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

/* ---------- bibliothèque ---------- */
.library { min-width: 0; }
.source { margin-bottom: 36px; }
.source > header { margin-bottom: 4px; }
.source h3 { font-size: var(--step-1); }
.source .meta { margin: 2px 0 0; color: var(--ink-2); font-size: var(--step--1); }
.chapter { margin-top: 18px; padding-left: 16px; border-left: 2px solid var(--rule); }
.title-line { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.chapter h4 { font-size: var(--step-0); }
.chapter > .count { font: 400 var(--step--1) var(--sans); color: var(--ink-2); }
.pending-source h3 { color: var(--ink-2); font-style: italic; }
.rename { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.rename input { flex: 1 1 12rem; width: auto; padding: 6px 10px; }
.note-actions { display: flex; gap: 18px; margin-top: 6px; }
.doubt { margin: 8px 0 0; font-size: var(--step--1); color: var(--ink); background: var(--paper); border-left: 3px solid var(--marker); padding: 6px 10px; }
.panel { margin-top: 10px; padding: 14px; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--sheet); }
.panel textarea { min-height: 8rem; }
.panel-label { margin: 12px 0 0; font-weight: 700; font-size: var(--step--1); }
.panel-actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.panel .field { margin-bottom: 10px; }
.concepts.editable li { display: inline-flex; align-items: center; gap: 2px; }
.chip-x { background: none; border: 0; cursor: pointer; color: var(--marker-ink); font-size: 1rem; line-height: 1; padding: 2px 4px; }
.add-concept { display: flex; gap: 8px; margin-top: 10px; }
.add-concept input { flex: 1; width: auto; padding: 6px 10px; }
.notes { list-style: none; margin: 8px 0 0; padding: 0; }
.note { padding: 12px 0; border-top: 1px solid var(--rule); }
.note:first-child { border-top: 0; }
.note-meta { font-size: var(--step--1); color: var(--ink-2); margin: 0 0 4px; }
.note-text { font-family: var(--serif); margin: 0; overflow-wrap: anywhere; white-space: pre-line; }
.note.collapsed .note-text { display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.note-more { background: none; border: 0; color: var(--pen); font: 700 var(--step--1) var(--sans); padding: 4px 0; cursor: pointer; }
.note-status { margin: 6px 0 0; font-size: var(--step--1); color: var(--ink-2); font-style: italic; }

/* L'élément marquant : les concepts surlignés. */
.concepts { list-style: none; display: flex; flex-wrap: wrap; gap: 6px 10px; margin: 8px 0 0; padding: 0; }
.concepts li {
  font-family: var(--serif); font-size: var(--step--1); color: var(--marker-ink); padding: 1px 6px;
  background: linear-gradient(176deg, transparent 8%, var(--marker) 9%, var(--marker) 90%, transparent 91%);
  border-radius: 0.25em 0.6em 0.3em 0.5em;
}

.empty { padding: 28px 0; color: var(--ink-2); max-width: 36rem; }
.empty strong { color: var(--ink); font-family: var(--serif); font-size: var(--step-1); font-weight: 600; display: block; margin-bottom: 6px; }

.data { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--rule); color: var(--ink-2); font-size: var(--step--1); }
.data p { margin: 0 0 12px; }
.data-actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- message ---------- */
.toast {
  display: flex; align-items: center; gap: 14px; z-index: 40;
  position: fixed; left: 50%; bottom: max(20px, env(safe-area-inset-bottom)); transform: translate(-50%, 140%);
  background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 8px; font-weight: 700; font-size: var(--step--1);
  transition: transform .25s ease; max-width: calc(100vw - 32px);
}
.toast:not(.show) { visibility: hidden; transition: transform .25s ease, visibility 0s .25s; }
.toast.show { transform: translate(-50%, 0); }
.toast button { background: none; border: 0; color: var(--marker); font: 700 var(--step--1) var(--sans); cursor: pointer; padding: 4px 0; white-space: nowrap; }

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

/* Téléphone : message pleine largeur, au-dessus des onglets et du bouton « Nouvelle note ». */
@media (max-width: 899px) {
  .toast { left: 16px; right: 16px; max-width: none; justify-content: space-between; transform: translateY(140%); bottom: calc(76px + env(safe-area-inset-bottom)); }
  .toast.show { transform: translateY(0); }
  body.composing .toast { bottom: max(16px, env(safe-area-inset-bottom)); }
}

/* ---------- bibliothèque par thèmes ---------- */
.lib-tabs { display: inline-flex; gap: 2px; padding: 3px; background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px; margin-bottom: 18px; }
.lib-tabs button, .seg button {
  border: 0; background: none; cursor: pointer; font: 700 var(--step--1)/1 var(--sans); color: var(--ink-2);
  padding: 9px 14px; border-radius: 7px;
}
.lib-tabs button[aria-selected="true"], .seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0 0 16px; font-size: var(--step--1); color: var(--ink-2); }
.crumbs [aria-current] { color: var(--ink); font-weight: 700; }
.crumbs .link-btn { padding: 4px 0; }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 13.5rem), 1fr)); gap: 12px; }
.tile {
  position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 4px; text-align: left; cursor: pointer;
  background: var(--sheet); color: var(--ink); border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 14px 14px 14px 18px; font: inherit; min-height: 7.5rem; overflow: hidden;
}
.tile::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--accent, var(--pen)); }
.tile:hover { border-color: var(--accent, var(--ink-2)); }
.tile-emoji { font-size: 1.6rem; line-height: 1; margin-bottom: 4px; }
.tile-title { font: 600 var(--step-1)/1.25 var(--serif); overflow-wrap: anywhere; }
.tile-meta { font-size: var(--step--1); color: var(--ink-2); }
.tile-list { font-size: var(--step--1); color: var(--ink-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.group-tile { box-shadow: 4px 4px 0 -1px var(--sheet), 4px 4px 0 0 var(--rule); }
.concepts.mini { display: flex; flex-wrap: wrap; gap: 4px 6px; margin-top: 4px; }
.concepts.mini span {
  font-family: var(--serif); font-size: 0.8rem; color: var(--marker-ink); padding: 0 5px;
  background: linear-gradient(176deg, transparent 8%, var(--marker) 9%, var(--marker) 90%, transparent 91%);
}
.subject-head { display: grid; gap: 6px; margin-bottom: 8px; }
.subject-head .seg { justify-self: start; display: inline-flex; gap: 2px; padding: 3px; border: 1px solid var(--rule); border-radius: 10px; background: var(--sheet); }
.chapter.bare { border-left: 0; padding-left: 0; margin-top: 8px; }
.idea { margin-top: 18px; }
.idea h4 { font-size: var(--step-0); }
.marker { background: linear-gradient(176deg, transparent 8%, var(--marker) 9%, var(--marker) 90%, transparent 91%); color: var(--marker-ink); padding: 0 6px; }
.idea .count { font: 400 var(--step--1) var(--sans); color: var(--ink-2); }
.mini-notes { list-style: none; margin: 6px 0 0; padding: 0 0 0 12px; border-left: 2px solid var(--rule); }
.mini-notes li { padding: 6px 0; font-family: var(--serif); font-size: var(--step--1); line-height: 1.5; }
.mini-notes .note-meta { font-family: var(--sans); display: inline; margin-right: 4px; }
.day { margin-bottom: 24px; }
.day h3 { font-size: var(--step-1); margin-bottom: 4px; }
.path { display: block; text-align: left; margin: 0 0 4px; font-size: 0.8rem; }
.pending-block { margin-bottom: 20px; padding: 12px 14px; border: 1px dashed var(--rule); border-radius: var(--radius); }
.pending-block h3 { font-size: var(--step-0); color: var(--ink-2); font-style: italic; }
@media (max-width: 899px) {
  .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .tile { min-height: 6.5rem; padding: 12px 10px 12px 14px; }
  .tile-title { font-size: var(--step-0); }
}