/* ═════════════════════════════════════════════════════════════════
   SYNAPSE — Interface Sobre & Minimaliste (Remplacement Anki Prépa)
   ═════════════════════════════════════════════════════════════════ */

:root {
  --bg: #090a0d;
  --card-bg: #111318;
  --card-hover: #171a22;
  --input-bg: #0e1015;
  --text: #f3f4f6;
  --text-soft: #e5e7eb;
  --dim: #9ca3af;
  --dim-dark: #4b5563;
  --border: rgba(255, 255, 255, 0.07);
  --border-active: rgba(255, 255, 255, 0.2);
  --accent: #f59e0b;
  --accent-soft: rgba(245, 158, 11, 0.12);
  --blue: #38bdf8;
  --green: #10b981;
  --red: #f43f5e;
  --purple: #c084fc;
  --font: 'Playpen Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', Menlo, Consolas, monospace;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-weight: 300;
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* NAVIGATION MINIMALISTE */
.app-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-btn {
  background: none;
  border: none;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sync-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 3px 8px;
  border-radius: 99px;
  cursor: pointer;
  color: var(--dim);
}

.sync-badge:hover {
  border-color: var(--border-active);
  color: var(--text);
}

.sync-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.dot-synced { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dot-syncing { background: var(--accent); animation: pulse 1s infinite; }
.dot-offline { background: var(--dim-dark); }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* BOUTONS GÉNÉRIQUES */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  text-decoration: none;
  color: var(--text);
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--text);
  color: #000;
  font-weight: 600;
}

.btn-primary:hover:not(:disabled) {
  background: #fff;
}

.btn-secondary {
  background: var(--card-bg);
  border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--card-hover);
  border-color: var(--border-active);
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--dim);
}

.btn-outline:hover:not(:disabled) {
  color: var(--text);
  border-color: var(--border-active);
}

.btn-danger-outline {
  background: transparent;
  border-color: rgba(244, 63, 94, 0.3);
  color: var(--red);
}

.btn-danger-outline:hover {
  background: rgba(244, 63, 94, 0.1);
}

.btn-xs { padding: 4px 8px; font-size: 0.72rem; }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; }
.btn-lg { padding: 12px 24px; font-size: 0.95rem; }
.btn-block { width: 100%; }

/* MAIN WRAPPER */
#app-main {
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 16px 60px;
  flex: 1;
}

/* ═════════════════════════════════════════════════════════════════
   ÉCRAN DE VERROU / CODE SYNCHRO
   ═════════════════════════════════════════════════════════════════ */
.auth-wrapper {
  max-width: 380px;
  margin: 80px auto 0;
}

.auth-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
}

.auth-sigil { font-size: 2rem; margin-bottom: 8px; }
.auth-title { font-size: 1.4rem; font-weight: 700; letter-spacing: 0.05em; }
.auth-subtitle { font-size: 0.8rem; color: var(--dim); margin-bottom: 24px; }

.auth-input-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-input-group input {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  text-align: center;
  outline: none;
}

.auth-input-group input:focus {
  border-color: var(--text);
}

.auth-footer {
  margin-top: 16px;
}

.btn-link {
  background: none;
  border: none;
  color: var(--dim);
  font-size: 0.75rem;
  cursor: pointer;
  text-decoration: underline;
}

/* ═════════════════════════════════════════════════════════════════
   DASHBOARD SOBRE (DECKS ANKI-STYLE)
   ═════════════════════════════════════════════════════════════════ */
.dashboard-sober {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.dash-top-metrics {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.metric-pill {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 0.82rem;
}

.m-count { font-weight: 700; font-size: 1.1rem; }
.m-label { font-size: 0.72rem; color: var(--dim); text-transform: uppercase; }

.pill-due .m-count { color: var(--red); }
.pill-new .m-count { color: var(--blue); }
.pill-learning .m-count { color: var(--accent); }
.pill-mastered .m-count { color: var(--green); }
.pill-streak .m-count { color: var(--accent); }

.dash-actions-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-action-main {
  font-weight: 700;
}

.filter-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.subject-chips {
  display: flex;
  gap: 6px;
  overflow-x: auto;
}

.chip {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--dim);
  padding: 4px 10px;
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.75rem;
  cursor: pointer;
  white-space: nowrap;
}

.chip:hover, .chip.active {
  background: var(--card-bg);
  color: var(--text);
  border-color: var(--border-active);
}

.dash-search {
  display: flex;
  gap: 6px;
}

.dash-search input {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.78rem;
  outline: none;
  width: 140px;
}

.dash-search input:focus {
  border-color: var(--text);
  width: 180px;
}

/* TABLE DES COURS (ANKI DECK TABLE) */
.deck-table-container {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow-x: auto;
}

.deck-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.deck-table th {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--dim);
  font-weight: 500;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.th-num { text-align: center; width: 60px; }
.th-pct { width: 110px; }
.th-actions { text-align: right; width: 130px; }

.deck-row {
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  transition: background 0.15s;
}

.deck-row:hover {
  background: var(--card-hover);
}

.deck-row td {
  padding: 12px 14px;
  vertical-align: middle;
}

.td-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.subject-tag {
  font-size: 0.62rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 3px;
  font-family: var(--font-mono);
}

.subject-maths { background: rgba(56, 189, 248, 0.15); color: var(--blue); }
.subject-physique { background: rgba(192, 132, 252, 0.15); color: var(--purple); }
.subject-info { background: rgba(16, 185, 129, 0.15); color: var(--green); }
.subject-philo { background: rgba(245, 158, 11, 0.15); color: var(--accent); }

.course-name-text {
  font-weight: 500;
  color: var(--text-soft);
}

.td-num { text-align: center; }

.count-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--dim-dark);
}

.count-badge.has-due {
  color: var(--red);
  font-weight: 700;
}

.count-new { color: var(--blue); }
.count-total { font-family: var(--font-mono); font-size: 0.8rem; color: var(--dim); }

.td-pct {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mini-prog-track {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 99px;
  overflow: hidden;
}

.mini-prog-fill {
  height: 100%;
  background: var(--green);
}

.pct-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--dim);
}

.td-actions {
  text-align: right;
  white-space: nowrap;
}

/* ═════════════════════════════════════════════════════════════════
   VUE RÉVISION ACTIVE (ANKI-KILLER STUDY MODE)
   ═════════════════════════════════════════════════════════════════ */
.anki-study-wrapper {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.anki-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--dim);
}

.anki-breadcrumb {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bc-c { color: var(--text); font-weight: 500; }
.bc-slash { opacity: 0.3; }

.anki-counter {
  font-family: var(--font-mono);
}

.anki-progress-track {
  height: 3px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 99px;
  overflow: hidden;
}

.anki-progress-fill {
  height: 100%;
  background: var(--text);
  transition: width 0.2s ease;
}

.anki-card-container {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 32px 28px;
  min-height: 280px;
  display: flex;
  flex-direction: column;
}

.anki-card {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.anki-tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.tag-thm { background: rgba(56, 189, 248, 0.15); color: var(--blue); }
.tag-def { background: rgba(16, 185, 129, 0.15); color: var(--green); }
.tag-demo { background: rgba(245, 158, 11, 0.15); color: var(--accent); }
.tag-piege { background: rgba(244, 63, 94, 0.15); color: var(--red); }
.tag-meth { background: rgba(192, 132, 252, 0.15); color: var(--purple); }

.anki-prompt-title {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 12px;
  color: #fff;
}

.anki-instruction {
  font-size: 0.85rem;
  color: var(--dim);
  margin-bottom: 20px;
  border-left: 2px solid var(--border-active);
  padding-left: 10px;
}

.anki-scratchpad textarea {
  width: 100%;
  height: 90px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  resize: vertical;
  outline: none;
  margin-bottom: 16px;
}

.scratchpad-hidden { display: none; }

.anki-answer-area.is-hidden { display: none; }
.anki-answer-area.is-revealed {
  animation: fadeIn 0.15s ease-out;
}

.anki-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 20px 0;
}

.anki-answer-content {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text);
}

/* BARRE D'ÉVALUATION BASSE */
.anki-action-bar {
  display: flex;
  justify-content: center;
}

.btn-show-answer {
  width: 100%;
}

.anki-ratings-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  width: 100%;
}

.anki-btn-rate {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  color: var(--text);
  font-family: inherit;
  transition: all 0.1s;
}

.anki-btn-rate:hover {
  transform: translateY(-1px);
}

.r-key {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--dim-dark);
}

.r-txt {
  font-size: 0.82rem;
  font-weight: 600;
  margin: 2px 0;
}

.r-int {
  font-size: 0.7rem;
  color: var(--dim);
}

.rate-again:hover { border-color: var(--red); background: rgba(244, 63, 94, 0.08); }
.rate-hard:hover { border-color: var(--accent); background: rgba(245, 158, 11, 0.08); }
.rate-good:hover { border-color: var(--blue); background: rgba(56, 189, 248, 0.08); }
.rate-easy:hover { border-color: var(--green); background: rgba(16, 185, 129, 0.08); }

/* ═════════════════════════════════════════════════════════════════
   VUE PLAN HIÉRARCHIQUE (TREE RECALL)
   ═════════════════════════════════════════════════════════════════ */
.tree-sober-wrapper {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.tree-nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  flex-wrap: wrap;
  gap: 10px;
}

.tree-nav-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tree-nav-title h2 {
  font-size: 1.15rem;
  font-weight: 600;
}

.tree-sub-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tree-filter-pills {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.pill-lbl { font-size: 0.72rem; color: var(--dim); }

.tag-pill {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--dim);
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 3px;
  cursor: pointer;
}

.tag-pill.active {
  background: var(--card-bg);
  border-color: var(--text);
  color: var(--text);
}

.tree-body-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.part-block {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}

.part-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.015);
  user-select: none;
}

.part-head h3 {
  font-size: 0.95rem;
  font-weight: 600;
  flex: 1;
}

.fold-arrow { font-size: 0.65rem; color: var(--dim); transition: transform 0.15s; }
.part-block.folded .fold-arrow { transform: rotate(-90deg); }
.part-block.folded .part-content { display: none; }

.part-badge { font-size: 0.7rem; color: var(--dim-dark); font-family: var(--font-mono); }

.part-content {
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sub-block {
  border-left: 2px solid var(--border);
  padding-left: 12px;
}

.sub-head {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  margin-bottom: 8px;
}

.sub-head h4 { font-size: 0.85rem; font-weight: 600; color: var(--text-soft); }
.sub-block.folded .sub-content { display: none; }

.sub-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.node-row {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 10px 12px;
}

.node-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  gap: 6px;
}

.node-title-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.node-tag-pill {
  font-size: 0.62rem;
  font-weight: 700;
  padding: 1px 4px;
  border-radius: 2px;
}

.node-title-bold { font-size: 0.85rem; font-weight: 500; }

.node-actions-right {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-indicator {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  padding: 1px 5px;
  border-radius: 3px;
}

.status-new { color: var(--dim); background: rgba(255, 255, 255, 0.05); }
.status-lapse { color: var(--red); background: rgba(244, 63, 94, 0.1); }
.status-learning { color: var(--accent); background: rgba(245, 158, 11, 0.1); }
.status-consolidated { color: var(--blue); background: rgba(56, 189, 248, 0.1); }
.status-mastered { color: var(--green); background: rgba(16, 185, 129, 0.1); }

.btn-direct-quiz {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--dim);
  font-size: 0.68rem;
  padding: 2px 6px;
  border-radius: 3px;
  cursor: pointer;
}

.btn-direct-quiz:hover { color: var(--text); border-color: var(--border-active); }

/* MASQUAGE ACTIF */
.node-text-masked { position: relative; }
.node-text-masked.masked .node-inner-content {
  filter: blur(6px);
  user-select: none;
  opacity: 0.15;
}

.node-text-masked.masked .mask-clicker { display: flex; }
.mask-clicker {
  display: none;
  position: absolute;
  inset: 0;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 2;
  font-size: 0.75rem;
  color: var(--dim);
}

.node-inner-content { font-size: 0.85rem; line-height: 1.6; }

/* ═════════════════════════════════════════════════════════════════
   SUMMARY & ÉDITEUR SOBRE
   ═════════════════════════════════════════════════════════════════ */
.summary-sober {
  max-width: 460px;
  margin: 60px auto 0;
}

.summary-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px;
  text-align: center;
}

.sum-tag { font-size: 0.72rem; color: var(--green); text-transform: uppercase; font-weight: 700; margin-bottom: 6px; }
.summary-box h2 { font-size: 1.4rem; font-weight: 600; margin-bottom: 6px; }
.sum-lead { font-size: 0.85rem; color: var(--dim); margin-bottom: 20px; }

.sum-breakdown {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  margin-bottom: 24px;
}

.sum-btns { display: flex; gap: 8px; justify-content: center; }

/* ÉDITEUR */
.editor-sober { display: flex; flex-direction: column; gap: 14px; }
.editor-nav { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border); padding-bottom: 10px; }
.editor-grid-top { display: grid; grid-template-columns: 3fr 1fr; gap: 10px; }
.editor-grid-top input, .editor-grid-top select {
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  outline: none;
}
.editor-panes { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; min-height: 440px; }
.pane-code textarea {
  width: 100%;
  height: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.5;
  resize: none;
  outline: none;
}
.pane-render {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* MODAL */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  padding: 16px;
}

.modal-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-width: 480px;
  width: 100%;
  padding: 22px;
}

.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.modal-x { background: none; border: none; color: var(--dim); font-size: 1.3rem; cursor: pointer; }
.mod-row { padding: 10px 0; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.mod-desc { font-size: 0.72rem; color: var(--dim); margin-top: 2px; }
.sync-input-row { display: flex; gap: 6px; }
.sync-input-row input { background: var(--input-bg); border: 1px solid var(--border); border-radius: 4px; padding: 4px 8px; color: var(--text); font-family: inherit; font-size: 0.8rem; width: 110px; }
.modal-sep { border: none; border-top: 1px solid var(--border); margin: 16px 0; }
.mod-backup-btns { display: flex; gap: 8px; justify-content: flex-end; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* RESPONSIVE */
@media (max-width: 640px) {
  .deck-table th:nth-child(3), .deck-table td:nth-child(3) { display: none; }
  .deck-table th:nth-child(4), .deck-table td:nth-child(4) { display: none; }
  .anki-ratings-grid { grid-template-columns: repeat(2, 1fr); }
  .editor-panes { grid-template-columns: 1fr; }
}