.study-mobile-topics { display: none; }
.study-home { max-width: 1060px; }
.study-eyebrow { font-size: 11px; font-weight: 800; letter-spacing: .12em; color: var(--accent); margin: 0 0 10px; }
.study-heading-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 20px; }
.study-heading-row h1 { margin: 0; }
.study-progress-summary { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 14px; color: var(--muted); }
.study-progress-summary strong { color: var(--text); }
.study-inline-link { border: 0; background: transparent; color: var(--accent); font: inherit; cursor: pointer; padding: 0; }
.study-progress-track { height: 4px; background: var(--panel-2); border-radius: 8px; overflow: hidden; margin: 12px 0 26px; }
.study-progress-track span { display: block; height: 100%; background: var(--ok); }
.study-search { margin: 20px 0 24px; }
.study-search label { display: block; margin-bottom: 8px; font-size: 14px; color: var(--muted); }
.study-search input { width: 100%; padding: 15px 18px; background: var(--panel); border-radius: 12px; }
.study-subject-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
.study-subject { display: flex; flex-direction: column; gap: 12px; background: var(--panel); border: 1px solid var(--border); border-radius: 14px; color: var(--text); padding: 22px; text-align: left; font: inherit; cursor: pointer; }
.study-subject:hover, .study-tool-card:hover { border-color: var(--accent); background: var(--panel-2); }
.study-subject strong { font-size: 18px; }
.study-subject-icon { font-size: 25px; }
.study-subject-footer { display: flex; justify-content: space-between; border-top: 1px solid var(--border); padding-top: 12px; margin-top: auto; font-size: 13px; color: var(--muted); }
.study-subject-footer span:last-child { color: var(--accent); }
.study-shortcuts { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.study-layout { display: grid; grid-template-columns: minmax(0,1fr) 320px; gap: 28px; align-items: start; }
.study-topic-list { display: flex; flex-direction: column; gap: 8px; }
.study-topic { display: flex; align-items: center; justify-content: space-between; gap: 14px; text-align: left; color: var(--text); background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 15px 16px; cursor: pointer; font: inherit; }
.study-topic strong { font-size: 15px; }
.study-topic small { display: block; font-size: 12px; color: var(--muted); margin-top: 6px; }
.study-topic.selected { background: var(--selected-bg); border-color: var(--accent); box-shadow: inset 3px 0 var(--accent); }
.study-session { position: sticky; top: calc(var(--header-h, 74px) + 20px); background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 22px; }
.study-session-subject { font-size: 12px; color: var(--muted); margin: 0 0 8px; }
.study-session h2 { font-size: 21px; margin-bottom: 22px; }
.study-session > label { display: block; font-size: 14px; margin: 16px 0 8px; }
.study-session .select { width: 100%; }
.study-filter { border: 0; padding: 0; margin: 0; }
.study-filter legend { font-size: 14px; margin-bottom: 10px; }
.study-filter label { display: flex; gap: 10px; align-items: center; padding: 10px 0; font-size: 14px; cursor: pointer; }
.study-filter input { accent-color: var(--accent); }
.study-filter strong { margin-left: auto; color: var(--muted); }
.study-options { font-size: 13px; margin: 18px 0; }
.study-options summary { cursor: pointer; color: var(--muted); }
.study-start { width: 100%; margin-bottom: 10px; white-space: normal; }
.study-session > .chat-hint { margin-bottom: 0; font-size: 12px; }
.study-results-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 26px; }
.study-result { text-align: left; background: var(--panel); border: 1px solid var(--border); color: var(--text); border-radius: 10px; padding: 14px; font: inherit; cursor: pointer; }
.study-result span { display: block; margin-top: 6px; }
.study-tools-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; margin-bottom: 28px; }
.study-tool-card { display: flex; flex-direction: column; text-decoration: none; background: var(--panel); border: 1px solid var(--border); border-radius: 15px; overflow: hidden; color: var(--text); }
.study-tool-art { height: 155px; background: #102130; position: relative; display: grid; place-items: center; }
.study-tool-art img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; padding: 8px; }
.study-tool-art span { font-size: 46px; }
.study-tool-copy { padding: 18px; display: flex; flex-direction: column; flex: 1; }
.study-type { color: var(--accent); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .07em; }
.study-tool-copy h3 { font-size: 18px; margin: 10px 0; }
.study-tool-copy p { color: var(--muted); font-size: 13px; margin: 0 0 18px; }
.study-tool-open { margin-top: auto; color: var(--accent); font-size: 13px; font-weight: 600; }
.study-group-title { font-size: 20px; margin: 28px 0 16px; }
.study-tool-filters { margin-bottom: 20px; }
.study-home button:focus-visible, .study-home a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.quiz-mode-banner { display: flex; justify-content: space-between; gap: 12px; padding: 14px 18px; border: 1px solid var(--border); border-radius: 12px; margin-bottom: 22px; background: var(--panel); font-size: 14px; }
.quiz-mode-banner.exam-mode { border-color: var(--highlight); background: var(--highlight-bg); color: var(--highlight); }
.quiz-help { margin-top: 26px; border-top: 1px solid var(--border); padding-top: 16px; }
.quiz-help summary { cursor: pointer; color: var(--accent); font-size: 15px; padding: 8px 0; }
.exam-review { margin: 12px 0; padding: 16px; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; }
.exam-review summary { cursor: pointer; font-size: 15px; font-weight: 600; }
.exam-review img { display: block; max-width: 100%; margin-top: 15px; }
@media (max-width: 800px) {
  .study-layout { grid-template-columns: minmax(0,1fr); }
  .study-session { position: static; }
  .study-mobile-topics { display: block; width: 100%; }
  .study-topic-list { display: none; }
  .study-layout { gap: 20px; }
  .study-tools-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 480px) {
  .study-subject-grid, .study-tools-grid { grid-template-columns: 1fr; }
  .study-heading-row { align-items: flex-start; flex-direction: column; }
  .study-subject { padding: 18px; gap: 8px; }
  .study-subject-icon { font-size: 21px; }
  .quiz-mode-banner { flex-direction: column; }
}

.study-subject-progress { display: block; width: 100%; height: 6px; overflow: hidden; border-radius: 999px; background: var(--border); }
.study-subject-progress > span { display: block; height: 100%; border-radius: inherit; background: var(--ok); }

.study-topic-row { display: flex; gap: 8px; align-items: stretch; }
.study-topic-row .study-topic { flex: 1; min-width: 0; }
.study-fiche-link { align-self: center; white-space: nowrap; font-size: 13px; padding: 12px; text-decoration: none; }
.study-fiche { max-width: 850px; }
.study-fiche > .study-eyebrow { margin-top: 26px; }
.study-fiche .prep-content { line-height: 1.75; }

.study-mobile-fiche { display: none; }
@media (max-width: 800px) {
  .study-mobile-fiche:not([hidden]) { display: inline-flex; margin-top: 12px; text-decoration: none; }
}
.game-dashboard { margin: 0 0 26px; }
.game-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.game-card { display: flex; flex-direction: column; gap: 10px; padding: 18px; border: 1px solid var(--border); background: var(--panel); border-radius: 14px; font-size: 13px; color: var(--muted); }
.game-card .study-eyebrow { margin: 0; }
.game-value { font-size: 21px; color: var(--text); }
.game-meter { height: 6px; border-radius: 99px; overflow: hidden; background: var(--border); margin-top: auto; }
.game-meter span { display: block; height: 100%; background: var(--accent); border-radius: inherit; }
.game-badges { margin-top: 14px; font-size: 14px; }
.game-badges summary { cursor: pointer; padding: 10px 0; color: var(--text); }
.game-badge-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(150px,1fr)); gap: 10px; margin: 10px 0; }
.game-badge { display: flex; flex-direction: column; gap: 8px; padding: 14px; border: 1px dashed var(--border); border-radius: 12px; color: var(--muted); font-size: 12px; }
.game-badge.unlocked { border-style: solid; border-color: var(--accent); background: var(--selected-bg); color: var(--text); }
.game-reward { display: flex; flex-wrap: wrap; gap: 12px 24px; padding: 20px; margin: 20px 0; border: 1px solid var(--accent); border-radius: 14px; background: var(--selected-bg); font-size: 14px; }
@media (max-width: 600px) { .game-cards { grid-template-columns: 1fr; } }