/* Prepare for the Exam (exam-prep.html): uses the academic theme from styles.css */
/* the workspace page locks itself to one screen (body:has(.osthath-header) in styles.css); this page scrolls normally */
html body.ep-page { block-size: auto; max-block-size: none; overflow: visible; min-block-size: 100dvh; }
body.ep-page main.ep-main { max-inline-size: 1180px; margin-inline: auto; padding: 1.5rem 1.75rem 3rem; overflow: visible; flex: none; display: block; min-block-size: 0; }
.ep-page .uni-header-inner { max-inline-size: 1180px; padding-inline: 1.75rem; }
.ep-panel { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.1rem; }
.ep-head { display: flex; flex-wrap: wrap; gap: 0.9rem; align-items: flex-end; justify-content: space-between; margin: 0; }
.ep-head .panel-title { margin: 0; }
.ep-title { display: flex; align-items: center; gap: 0.55rem; }
.ep-title-icon { inline-size: 1.6em; block-size: 1.6em; flex: none; color: var(--gold-600); }
.ep-view { min-block-size: 320px; }
.ep-note, .ep-muted { color: var(--slate-600); font-size: 0.9rem; }
.ep-muted { margin: 0; }
[dir="auto"] { unicode-bidi: plaintext; }
.ep-view :lang(ar), .ep-view [dir="auto"] { font-family: 'Plus Jakarta Sans', 'Noto Kufi Arabic', system-ui, sans-serif; }

/* exam tabs and study-mode tabs */
.ep-tabs, .ep-modes { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.ep-tabs button, .ep-modes button {
  border: 1px solid var(--ivory-300); background: #fff; color: var(--navy-900); border-radius: 999px;
  padding: 0.45rem 1rem; font: 700 0.88rem/1.2 'Plus Jakarta Sans', sans-serif; cursor: pointer;
}
.ep-tabs button[aria-selected="true"], .ep-modes button[aria-selected="true"] { background: var(--navy-900); color: #fff; border-color: var(--navy-900); box-shadow: inset 0 -3px 0 var(--gold-500); }
.ep-tabs button:focus-visible, .ep-modes button:focus-visible { outline: 2px solid var(--gold-500); outline-offset: 2px; }

/* readiness ring */
.ep-ring { flex: none; }
.ep-ring-bg { fill: none; stroke: var(--ivory-300); stroke-width: 8; }
.ep-ring-fg { fill: none; stroke: var(--gold-500); stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset 0.6s ease; }
.ep-ring text { font: 800 1.05rem 'Plus Jakarta Sans', sans-serif; fill: var(--navy-950); }

/* overview */
.ep-overview, .ep-results, .ep-study, .ep-mock { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.1rem; }
.ep-summary {
  display: flex; flex-wrap: wrap; gap: 1.1rem; align-items: center; padding: 1rem 1.2rem;
  border: 1px solid rgba(197, 155, 39, 0.45); border-radius: var(--radius-md); background: linear-gradient(165deg, #fff 0%, var(--ivory-200) 100%);
}
.ep-summary-text { flex: 1 1 260px; display: grid; gap: 0.25rem; }
.ep-summary-text h3 { margin: 0; font-family: 'Cormorant Garamond', serif; font-size: 1.6rem; color: var(--navy-950); }
.ep-summary-text p { margin: 0; }
.ep-summary-actions { display: grid; gap: 0.4rem; justify-items: start; }
.ep-weeks { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 0.75rem; }
.ep-week-btn {
  inline-size: 100%; block-size: 100%; text-align: start; display: grid; gap: 0.45rem; align-content: start; padding: 0.85rem 0.95rem;
  background: #fff; border: 1px solid var(--ivory-300); border-radius: var(--radius-md); cursor: pointer; font: inherit; color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.ep-week-btn:hover { border-color: var(--gold-500); box-shadow: var(--shadow-soft); transform: translateY(-1px); }
.ep-week-btn:focus-visible { outline: 2px solid var(--gold-500); outline-offset: 2px; }
.ep-week-label { font: 700 0.72rem/1 'JetBrains Mono', monospace; color: var(--crimson-700); text-transform: uppercase; letter-spacing: 0.04em; }
.ep-week-topic { font-weight: 700; color: var(--navy-950); font-size: 0.92rem; line-height: 1.35; }
.ep-week-meta { font-size: 0.78rem; color: var(--slate-600); }
.ep-bar { display: block; block-size: 7px; border-radius: 99px; background: var(--ivory-300); overflow: hidden; min-inline-size: 60px; }
.ep-bar span { display: block; block-size: 100%; background: var(--crimson-600); border-radius: 99px; }
.ep-bar span.mid { background: var(--gold-500); }
.ep-bar span.good { background: var(--emerald-700); }

/* one week */
.ep-study-head { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; justify-content: space-between; }
.ep-study-title { flex: 1 1 240px; display: grid; gap: 0.2rem; }
.ep-study-title h3 { margin: 0; color: var(--navy-950); font-size: 1.15rem; }
.ep-back { white-space: nowrap; }
.ep-count { margin: 0; font-size: 0.82rem; color: var(--slate-600); font-weight: 600; }

/* flip cards */
.ep-card {
  position: relative; display: grid; place-items: center; inline-size: min(100%, 640px); min-block-size: 240px; margin-inline: auto;
  padding: 2rem 1.5rem 2.2rem; border: 1px solid var(--ivory-300); border-radius: var(--radius-lg); cursor: pointer; font: inherit;
  background: #fff; box-shadow: var(--shadow-soft); perspective: 1200px;
}
.ep-card:focus-visible { outline: 2px solid var(--gold-500); outline-offset: 3px; }
.ep-card-face { grid-area: 1 / 1; text-align: center; transition: opacity 0.25s, transform 0.35s; max-inline-size: 52ch; }
.ep-face-front { font: 700 1.45rem/1.35 'Plus Jakarta Sans', 'Noto Kufi Arabic', sans-serif; color: var(--navy-950); }
.ep-face-back { font-size: 1.05rem; line-height: 1.7; color: var(--slate-900); opacity: 0; transform: rotateX(90deg); }
.ep-card.flipped { background: var(--ivory-100); border-color: var(--gold-500); }
.ep-card.flipped .ep-face-front { opacity: 0; transform: rotateX(-90deg); }
.ep-card.flipped .ep-face-back { opacity: 1; transform: none; }
.ep-card-hint { position: absolute; inset-block-end: 0.6rem; font-size: 0.75rem; color: var(--slate-600); }
.ep-card-actions, .ep-done-actions, .ep-mock-nav { display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: center; }

/* questions */
.ep-q { font-size: 1.08rem; font-weight: 600; color: var(--navy-950); line-height: 1.55; white-space: pre-wrap; }
.ep-options { display: grid; gap: 0.55rem; }
.ep-opt {
  display: flex; gap: 0.75rem; align-items: flex-start; text-align: start; padding: 0.75rem 0.9rem; font: inherit; color: var(--slate-900);
  background: #fff; border: 1px solid var(--ivory-300); border-radius: var(--radius-md); cursor: pointer; transition: border-color 0.15s, background 0.15s;
}
.ep-opt:hover:not(:disabled) { border-color: var(--navy-700); }
.ep-opt:focus-visible { outline: 2px solid var(--gold-500); outline-offset: 2px; }
.ep-opt:disabled { cursor: default; }
.ep-letter { flex: none; display: inline-grid; place-items: center; inline-size: 1.7rem; block-size: 1.7rem; border-radius: 50%; background: var(--ivory-200); font: 700 0.8rem 'JetBrains Mono', monospace; color: var(--navy-900); }
.ep-opt.chosen { border-color: var(--navy-800); background: #eef2f9; box-shadow: inset 0 0 0 1px var(--navy-800); }
.ep-opt.chosen .ep-letter { background: var(--navy-900); color: #fff; }
.ep-opt.right { border-color: var(--emerald-700); background: var(--emerald-100); }
.ep-opt.right .ep-letter { background: var(--emerald-700); color: #fff; }
.ep-opt.wrong { border-color: var(--crimson-600); background: #fbe9ee; }
.ep-opt.wrong .ep-letter { background: var(--crimson-700); color: #fff; }
.ep-why { display: grid; gap: 0.7rem; padding: 0.85rem 1rem; border-radius: var(--radius-md); background: var(--amber-100); border: 1px solid var(--gold-200); line-height: 1.6; }
.ep-done { display: grid; justify-items: center; gap: 0.8rem; text-align: center; padding: 1.2rem 0; }
.ep-done p { margin: 0; }

/* mock exam */
.ep-dots { display: flex; flex-wrap: wrap; gap: 5px; }
.ep-dots span { inline-size: 14px; block-size: 6px; border-radius: 99px; background: var(--ivory-300); }
.ep-dots span.done { background: var(--navy-700); }
.ep-dots span.cur { background: var(--gold-500); }
.ep-results h4 { margin: 0.4rem 0 0; color: var(--navy-950); }
.ep-byweek { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.45rem; }
.ep-week-row {
  inline-size: 100%; display: grid; grid-template-columns: 5.5rem 1fr minmax(80px, 160px) 2.6rem; gap: 0.75rem; align-items: center; text-align: start;
  padding: 0.55rem 0.75rem; background: #fff; border: 1px solid var(--ivory-300); border-radius: var(--radius-sm); cursor: pointer; font: inherit; font-size: 0.88rem;
}
.ep-week-row:hover { border-color: var(--gold-500); }
.ep-review { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.7rem; counter-reset: epq; }
.ep-review li {
  counter-increment: epq; position: relative; padding: 0.75rem 0.9rem 0.75rem 3rem; border-radius: var(--radius-md);
  border: 1px solid var(--ivory-300); border-inline-start: 4px solid var(--emerald-700); background: #fff;
}
.ep-review li::before {
  content: counter(epq); position: absolute; inset-inline-start: 0.75rem; inset-block-start: 0.75rem; inline-size: 1.6rem; block-size: 1.6rem;
  display: grid; place-items: center; border-radius: 50%; background: var(--emerald-100); color: var(--emerald-700); font: 700 0.78rem 'JetBrains Mono', monospace;
}
.ep-review li.bad::before { background: #fbe9ee; color: var(--crimson-700); }
.ep-why, .ep-review p, .ep-face-back { overflow-wrap: anywhere; }
bdi[dir="ltr"] { unicode-bidi: isolate; direction: ltr; }
.ep-review li.bad { border-inline-start-color: var(--crimson-600); }
.ep-review .ep-q { font-size: 0.95rem; }
.ep-review p { margin: 0.3rem 0 0; font-size: 0.88rem; }

/* loading */
.ep-loading { display: grid; justify-items: center; gap: 0.8rem; text-align: center; padding: 3rem 1rem; color: var(--slate-700); }
.ep-loading p { margin: 0; max-inline-size: 46ch; }
.ep-spin { inline-size: 38px; block-size: 38px; border-radius: 50%; border: 4px solid var(--ivory-300); border-block-start-color: var(--gold-500); animation: epSpin 0.9s linear infinite; }
@keyframes epSpin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .ep-spin { animation-duration: 3s; } .ep-card-face, .ep-week-btn { transition: none; } }

/* tablets */
@media (max-width: 900px) {
  body.ep-page main.ep-main { padding: 1rem 16px 2.5rem; }
  .ep-page .uni-header-inner { padding-inline: 16px; }
  .ep-page .uni-nav { gap: 0.3rem 0.35rem; }
  .ep-page .uni-nav a { white-space: nowrap; font-size: 0.78rem; padding: 0.35rem 0.55rem; min-block-size: 34px; display: inline-flex; align-items: center; }
  .ep-page .uni-nav .btn-secondary-light { padding-inline: 0.6rem; }
  .ep-panel { padding: 1.25rem; }
  .ep-study-head { display: grid; grid-template-columns: auto 1fr; align-items: center; }
  .ep-study-head .ep-study-title { grid-column: 1 / -1; grid-row: 1; }
  .ep-study-head > a { justify-self: end; }
  .ep-mock .ep-study-head > .ep-count { justify-self: end; }
}

/* phones */
@media (max-width: 640px) {
  /* a compact header: small links that wrap */
  .ep-page .uni-header-inner { gap: 0.5rem; padding-block: 0.6rem; }
  .ep-page .crest-shield { inline-size: 34px; block-size: 34px; }
  .ep-page .uni-name { font-size: 1rem; line-height: 1.25; }
  .ep-page .uni-sub { font-size: 0.6rem; }

  body.ep-page main.ep-main { padding: 0.75rem 16px 2rem; }
  .ep-panel { padding: 1rem; border-radius: var(--radius-md); gap: 0.9rem; }
  .ep-head { align-items: flex-start; }
  .ep-head .panel-title { font-size: 1.35rem; }
  .ep-tabs { inline-size: 100%; }
  .ep-tabs button { flex: 1 1 0; padding-inline: 0.6rem; }
  .ep-modes button { flex: 1 1 0; }

  .ep-summary { padding: 0.9rem; gap: 0.75rem 0.9rem; }
  .ep-summary .ep-ring { inline-size: 72px; block-size: 72px; }
  .ep-summary-text { flex: 1 1 0; min-inline-size: 0; }
  .ep-summary-text h3 { font-size: 1.35rem; }
  .ep-summary-actions { inline-size: 100%; }
  .ep-summary-actions .btn-gold-crest, .ep-summary-actions .btn-secondary-outline { inline-size: 100%; }
  .ep-weeks { grid-template-columns: minmax(0, 1fr); gap: 0.55rem; }

  .ep-study-head { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0.6rem; }
  .ep-study-head .btn-secondary-outline { font-size: 0.78rem; padding-inline: 0.5rem; white-space: normal; text-align: center; }
  .ep-study-head > * { justify-self: stretch !important; }
  .ep-study-head .btn-secondary-outline { inline-size: 100%; }
  .ep-q { font-size: 1rem; }
  .ep-opt { padding: 0.65rem 0.75rem; }
  .ep-card { min-block-size: 210px; padding: 1.5rem 1rem 2rem; }
  .ep-face-front { font-size: 1.2rem; }
  .ep-card-actions > *, .ep-done-actions > *, .ep-why .btn-gold-crest { flex: 1 1 140px; }
  .ep-mock-nav { display: grid; grid-template-columns: 1fr 1fr; }
  .ep-mock-nav .btn-gold-crest { grid-column: 1 / -1; }

  .ep-week-row { grid-template-columns: minmax(0, 1fr) auto; gap: 0.35rem 0.6rem; }
  .ep-week-row .ep-week-topic, .ep-week-row .ep-bar { grid-column: 1 / -1; }
  .ep-week-row strong { grid-row: 1; grid-column: 2; }
  .ep-review li { padding: 0.65rem 0.75rem 0.65rem 2.6rem; }
  .ep-review li::before { inset-inline-start: 0.55rem; }
}
.ep-tabs[hidden] { display: none; }

/* spacing inside a week: count, card or question, options, feedback and buttons each get room */
#epStudyBody { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1rem; }
.ep-card-actions { margin-block-start: 0.25rem; }
.ep-card-actions > *, .ep-done-actions > * { min-inline-size: 150px; }
.ep-options { margin-block-end: 0.25rem; }
.ep-why { gap: 0.9rem; padding: 1rem 1.15rem; }
.ep-why > div { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.ep-mock { gap: 1rem; }
.ep-mock-nav { margin-block-start: 0.4rem; }