/* ============================================================
   ΙΛΙΑΔΑ Arcade — game.css
   ============================================================ */

/* ── Root container ── */
#ia-root {
  font-family: 'Cinzel', serif;
  background: #080510;
  color: #F2E8D0;
  width: 100%;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* ── Screens ── */
.ia-screen { display: none; flex-direction: column; align-items: center; min-height: 100%; width: 100%; }
.ia-screen.ia-active { display: flex; }

/* ════════════════════════════════════
   TITLE SCREEN
   ════════════════════════════════════ */
#ia-s-title {
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(201,168,76,.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 20% 80%, rgba(180,30,10,.1) 0%, transparent 55%),
    linear-gradient(160deg, #080410 0%, #0A0608 55%, #120408 100%);
  justify-content: center;
  padding: 3rem 1.5rem 4rem;
  text-align: center;
  gap: 0;
}
.ia-title-ornament {
  font-size: 10px; letter-spacing: .35em; text-transform: uppercase;
  color: #7A6030; margin-bottom: 1.2rem;
}
.ia-title-hero { font-size: clamp(3rem, 10vw, 6rem); font-weight: 900; letter-spacing: .1em; line-height: 1;
  background: linear-gradient(180deg, #F0D890 0%, #C9A84C 50%, #7A5E2A 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: .3rem;
}
.ia-title-sub {
  font-family: 'Crimson Text', Georgia, serif; font-style: italic;
  font-size: clamp(1rem, 3vw, 1.4rem); color: #9A8A6A; margin-bottom: 2.5rem;
}
.ia-title-lang {
  display: flex; border: 1px solid rgba(201,168,76,.3); border-radius: 8px;
  overflow: hidden; width: fit-content; margin: 0 auto 2.5rem;
}
.ia-lang-btn {
  padding: .5rem 1.6rem; font-family: 'Cinzel', serif; font-size: .8rem;
  font-weight: 600; letter-spacing: .1em; cursor: pointer; border: none;
  background: transparent; color: #7A6030; transition: all .2s;
}
.ia-lang-btn.ia-active { background: #4a3010; color: #E8C96A; }
.ia-title-btns { display: flex; flex-direction: column; gap: .85rem; width: 100%; max-width: 340px; margin: 0 auto; }
.ia-btn-primary {
  padding: 1rem; font-family: 'Cinzel', serif; font-size: 1rem; font-weight: 700;
  letter-spacing: .14em; background: #C9A84C; color: #1C1108; border: none;
  border-radius: 10px; cursor: pointer; transition: all .2s;
}
.ia-btn-primary:hover { background: #E8C96A; transform: translateY(-1px); }
.ia-btn-secondary {
  padding: .85rem; font-family: 'Cinzel', serif; font-size: .88rem;
  letter-spacing: .1em; background: transparent; color: #9A8A6A;
  border: 1px solid rgba(201,168,76,.25); border-radius: 10px; cursor: pointer; transition: all .2s;
}
.ia-btn-secondary:hover { border-color: rgba(201,168,76,.6); color: #C9A84C; }

/* ════════════════════════════════════
   DIFFICULTY SCREEN
   ════════════════════════════════════ */
#ia-s-diff {
  background: #0D0A06;
  padding: 2.5rem 1.5rem 4rem;
  gap: 1.5rem;
}
.ia-screen-title {
  font-size: clamp(1.4rem, 5vw, 2rem); font-weight: 900;
  color: #C9A84C; letter-spacing: .08em; text-align: center;
}
.ia-screen-sub {
  font-family: 'Crimson Text', Georgia, serif; font-style: italic;
  font-size: 1rem; color: #7A6030; text-align: center; margin-top: -.5rem;
}
.ia-diff-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; width: 100%; max-width: 720px; }
.ia-diff-card {
  background: #16110A; border: 1.5px solid rgba(201,168,76,.18); border-radius: 14px;
  padding: 1.5rem 1.25rem; cursor: pointer; transition: all .2s; text-align: center;
}
.ia-diff-card:hover { border-color: rgba(201,168,76,.5); transform: translateY(-2px); background: #1E1810; }
.ia-diff-card.ia-selected { border-color: #C9A84C; background: rgba(201,168,76,.07); }
.ia-diff-icon { font-size: 2rem; margin-bottom: .6rem; }
.ia-diff-name { font-size: 1rem; font-weight: 700; letter-spacing: .08em; color: #E8C96A; margin-bottom: .4rem; }
.ia-diff-stats { font-family: 'Crimson Text', Georgia, serif; font-size: .88rem; color: #7A6030; line-height: 1.7; }
.ia-ctrl-row { display: flex; gap: .75rem; width: 100%; max-width: 720px; justify-content: center; }
.ia-ctrl-card {
  flex: 1; max-width: 200px; background: #16110A; border: 1.5px solid rgba(201,168,76,.18);
  border-radius: 12px; padding: 1rem; cursor: pointer; text-align: center; transition: all .2s;
}
.ia-ctrl-card:hover { border-color: rgba(201,168,76,.45); }
.ia-ctrl-card.ia-selected { border-color: #C9A84C; background: rgba(201,168,76,.07); }
.ia-ctrl-icon { font-size: 1.6rem; margin-bottom: .4rem; }
.ia-ctrl-name { font-size: .82rem; font-weight: 600; letter-spacing: .07em; color: #C9A84C; }
.ia-ctrl-desc { font-size: .75rem; color: #7A6030; margin-top: .2rem; }

/* ════════════════════════════════════
   BOOK SELECT SCREEN
   ════════════════════════════════════ */
#ia-s-books { background: #0D0A06; padding: 2.5rem 1.5rem 4rem; gap: 1.5rem; }
.ia-book-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; width: 100%; max-width: 800px; }
.ia-book-card {
  background: #16110A; border: 1.5px solid rgba(201,168,76,.18); border-radius: 14px;
  padding: 1.4rem 1.2rem; cursor: pointer; transition: all .2s; position: relative; overflow: hidden;
}
.ia-book-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(201,168,76,.4), transparent);
}
.ia-book-card:hover { border-color: rgba(201,168,76,.5); transform: translateY(-2px); background: #1E1810; }
.ia-book-roman { font-size: 2rem; font-weight: 900; color: rgba(201,168,76,.25); position: absolute; top: .6rem; right: 1rem; }
.ia-book-num { font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; color: #7A6030; margin-bottom: .4rem; }
.ia-book-title { font-size: 1.1rem; font-weight: 700; color: #E8C96A; margin-bottom: .3rem; }
.ia-book-tagline { font-family: 'Crimson Text', Georgia, serif; font-style: italic; font-size: .9rem; color: #9A8A6A; margin-bottom: .8rem; }
.ia-book-hero { display: flex; align-items: center; gap: .5rem; }
.ia-book-hero-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.ia-book-hero-name { font-size: .78rem; letter-spacing: .08em; color: #7A6030; }
.ia-book-score { font-size: .72rem; color: #5A8040; margin-top: .5rem; }

/* ════════════════════════════════════
   GAME SCREEN
   ════════════════════════════════════ */
#ia-s-game {
  background: #0D0A06;
  padding: 0;
  display: none;
  flex-direction: column;
  overflow: hidden;
  height: 100%;
  min-height: 0;
}
#ia-s-game.ia-active { display: flex; }

/* HUD — Tekken-style */
#ia-hud {
  flex-shrink: 0; display: flex; align-items: center; justify-content: space-between;
  padding: 7px 14px;
  background: linear-gradient(180deg, rgba(4,2,10,.98) 0%, rgba(10,6,4,.95) 100%);
  border-bottom: 1px solid rgba(201,168,76,.15);
  gap: 8px; flex-wrap: wrap; min-height: 46px;
}
.ia-hud-left, .ia-hud-right { display: flex; align-items: center; gap: 10px; }
.ia-hud-center { display: flex; align-items: center; gap: 8px; }
.ia-hp-wrap { display: flex; align-items: center; gap: 7px; }
.ia-hp-label { font-size: .58rem; letter-spacing: .14em; color: #7A6030; text-transform: uppercase; }
.ia-hp-bar-bg {
  width: 110px; height: 9px;
  background: #120A04; border-radius: 2px; overflow: hidden;
  border: 1px solid rgba(201,168,76,.1);
  box-shadow: inset 0 0 4px rgba(0,0,0,.6);
}
.ia-hp-bar {
  height: 100%; border-radius: 1px;
  background: linear-gradient(90deg, #9b1e1e, #c0392b);
  transition: width .15s;
}
.ia-hp-bar.ia-full {
  background: linear-gradient(90deg, #1e8449, #27ae60);
}
.ia-hp-bar.ia-mid {
  background: linear-gradient(90deg, #a04000, #d35400);
}
.ia-hp-num { font-size: .8rem; font-weight: 700; color: #F2E8D0; min-width: 28px; }
.ia-score-wrap { font-family: 'Cinzel', serif; text-align: right; }
.ia-score-label { font-size: .55rem; letter-spacing: .15em; color: #7A6030; display: block; text-transform: uppercase; }
.ia-score-val { font-size: 1rem; font-weight: 900; color: #C9A84C; letter-spacing: .05em; }
.ia-wave-label { font-size: .7rem; letter-spacing: .1em; color: #9A8A6A; }
.ia-wave-val { font-size: .88rem; font-weight: 700; color: #E8C96A; }
.ia-combo-hud {
  font-size: .82rem; font-weight: 900; color: #FF8020; display: none;
  text-shadow: 0 0 8px rgba(255,128,32,.6);
  animation: ia-combo-pop .15s ease-out;
}
.ia-combo-hud.ia-show { display: block; }
@keyframes ia-combo-pop {
  0%   { transform: scale(1.4); }
  100% { transform: scale(1); }
}
.ia-book-hud { font-size: .65rem; letter-spacing: .1em; color: #7A6030; }

/* Ultimate gauge */
.ia-ult-wrap { display: flex; align-items: center; gap: 5px; }
.ia-ult-label {
  font-size: .55rem; letter-spacing: .12em; color: #C9A84C;
  text-transform: uppercase; flex-shrink: 0;
}
.ia-ult-bar-bg {
  width: 68px; height: 7px;
  background: #120A04; border-radius: 2px; overflow: hidden;
  border: 1px solid rgba(201,168,76,.18);
  box-shadow: inset 0 0 4px rgba(0,0,0,.5);
}
.ia-ult-fill {
  height: 100%; border-radius: 1px;
  background: linear-gradient(90deg, #7A5520, #C9A84C);
  transition: width .1s;
}
.ia-ult-fill.ia-ult-ready {
  background: linear-gradient(90deg, #C9A84C, #FFD060);
  animation: ia-ult-pulse 0.7s ease-in-out infinite alternate;
}
@keyframes ia-ult-pulse {
  from { box-shadow: 0 0 4px rgba(201,168,76,.5); }
  to   { box-shadow: 0 0 12px rgba(255,208,96,.9), 0 0 24px rgba(201,168,76,.4); }
}
.ia-ult-num {
  font-size: .7rem; font-weight: 700; color: #C9A84C; min-width: 34px;
  letter-spacing: .02em;
}
.ia-ult-num.ia-ult-ready { color: #FFD060; text-shadow: 0 0 6px rgba(255,208,96,.8); }

/* Ultimate touch button */
.ia-ult-btn {
  background: rgba(201,168,76,.15) !important;
  border-color: rgba(201,168,76,.55) !important;
  color: #C9A84C !important;
  font-size: 1.2rem !important;
}
.ia-ult-btn.ia-ult-ready {
  background: rgba(201,168,76,.3) !important;
  border-color: #C9A84C !important;
  box-shadow: 0 0 10px rgba(201,168,76,.5), 0 0 20px rgba(201,168,76,.25);
  animation: ia-ult-btn-pulse .7s ease-in-out infinite alternate;
}
@keyframes ia-ult-btn-pulse {
  from { box-shadow: 0 0 6px rgba(201,168,76,.4); }
  to   { box-shadow: 0 0 16px rgba(255,208,96,.8), 0 0 30px rgba(201,168,76,.3); }
}

/* Game area */
#ia-game-area {
  flex-shrink: 0; position: relative; background: #0D0A06; width: 100%; overflow: hidden;
}
#ia-gc { display: block; width: 100%; image-rendering: pixelated; }

/* Wave banner */
#ia-wave-banner {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: rgba(13,10,6,.9); border: 1px solid rgba(201,168,76,.5);
  border-radius: 12px; padding: .9rem 2.5rem; text-align: center;
  opacity: 0; pointer-events: none; transition: opacity .25s; z-index: 20;
  white-space: nowrap;
}
#ia-wave-banner.ia-show { opacity: 1; }
.ia-wb-line1 { font-size: 1rem; font-weight: 700; letter-spacing: .12em; color: #C9A84C; }
.ia-wb-line2 { font-family: 'Crimson Text', Georgia, serif; font-style: italic; font-size: .9rem; color: #9A8A6A; margin-top: .2rem; }

/* Quiz — full-screen dramatic overlay */
#ia-quiz {
  position: fixed; inset: 0; z-index: 9000;
  display: flex; align-items: center; justify-content: center;
  background: rgba(8,5,2,.82);
  backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none;
  transition: opacity .3s ease;
}
#ia-quiz.ia-open {
  opacity: 1; pointer-events: all;
}
#ia-quiz.ia-open .ia-quiz-inner {
  transform: scale(1); opacity: 1;
}
.ia-quiz-inner {
  padding: 2rem 2.2rem 2rem;
  max-width: 620px; width: 92%;
  background: #16110A;
  border: 1px solid rgba(201,168,76,.35);
  border-radius: 16px;
  box-shadow: 0 0 60px rgba(201,168,76,.18), 0 24px 80px rgba(0,0,0,.7);
  transform: scale(.9); opacity: 0;
  transition: transform .35s cubic-bezier(.34,1.56,.64,1), opacity .3s ease;
  max-height: 90vh; overflow-y: auto;
}
/* Boss wave quiz — dramatic Tekken round-end feel */
#ia-quiz.ia-boss-wave { background: rgba(40,4,4,.92); }
#ia-quiz.ia-boss-wave .ia-quiz-inner {
  border-color: rgba(220,60,60,.6);
  box-shadow: 0 0 100px rgba(220,40,40,.35), 0 24px 80px rgba(0,0,0,.85);
  animation: ia-boss-border-pulse 1.8s ease-in-out infinite alternate;
}
@keyframes ia-boss-border-pulse {
  from { box-shadow: 0 0 60px rgba(220,40,40,.25), 0 24px 80px rgba(0,0,0,.8); }
  to   { box-shadow: 0 0 120px rgba(255,60,20,.5), 0 24px 80px rgba(0,0,0,.9); }
}
.ia-quiz-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.ia-quiz-title { font-size: .72rem; letter-spacing: .2em; text-transform: uppercase; color: #7A6030; }
.ia-quiz-timer-wrap { display: flex; align-items: center; gap: 6px; }
.ia-quiz-timer-bg { width: 80px; height: 5px; background: #241A0C; border-radius: 3px; overflow: hidden; }
.ia-quiz-timer-bar { height: 100%; border-radius: 3px; background: #C9A84C; transition: width .1s linear, background .5s; }
.ia-quiz-timer-num { font-size: .8rem; font-weight: 700; color: #C9A84C; min-width: 22px; }
.ia-quiz-q { font-family: 'Crimson Text', Georgia, serif; font-size: 1.15rem; font-style: italic; color: #F2E8D0; line-height: 1.6; margin-bottom: 1rem; }
.ia-quiz-opts { display: grid; grid-template-columns: 1fr 1fr; gap: .55rem; }
.ia-quiz-boss-label {
  font-family: 'Cinzel', serif; font-size: .9rem; font-weight: 700; letter-spacing: .25em;
  color: #E07070; text-align: center; margin-bottom: 1rem;
  text-shadow: 0 0 12px rgba(220,60,60,.6);
  animation: ia-boss-pulse 1.2s ease-in-out infinite alternate;
}
@keyframes ia-boss-pulse {
  from { opacity: .7; letter-spacing: .2em; }
  to   { opacity: 1; letter-spacing: .3em; }
}
.ia-quiz-opt {
  background: #241A0C; border: 1px solid rgba(201,168,76,.18); border-radius: 8px;
  padding: .7rem .9rem; text-align: left; cursor: pointer; transition: all .15s;
  font-family: 'Crimson Text', Georgia, serif; font-size: 1rem; color: #F2E8D0;
  display: flex; align-items: center; gap: .55rem;
}
.ia-quiz-opt:hover:not(:disabled) { border-color: rgba(201,168,76,.5); background: rgba(201,168,76,.07); }
.ia-quiz-opt-letter { font-family: 'Cinzel', serif; font-size: .68rem; font-weight: 700; color: #7A6030; width: 16px; flex-shrink: 0; }
.ia-quiz-opt.ia-correct { background: rgba(90,158,111,.18); border-color: #5A9E6F; color: #8FD4A4; }
.ia-quiz-opt.ia-correct .ia-quiz-opt-letter { color: #5A9E6F; }
.ia-quiz-opt.ia-wrong { background: rgba(201,107,107,.18); border-color: #C96B6B; color: #D48080; opacity: .75; }
.ia-quiz-opt:disabled { cursor: default; }
.ia-quiz-exp {
  margin-top: .9rem; padding: .8rem 1rem; border-radius: 8px; font-family: 'Crimson Text', Georgia, serif;
  font-size: .95rem; line-height: 1.6; display: none;
}
.ia-quiz-exp.ia-show { display: block; }
.ia-quiz-exp.ia-ok { background: rgba(90,158,111,.12); border: 1px solid rgba(90,158,111,.3); color: #8FD4A4; }
.ia-quiz-exp.ia-bad { background: rgba(201,107,107,.12); border: 1px solid rgba(201,107,107,.3); color: #D48080; }
.ia-quiz-continue {
  display: none; margin-top: 1rem; width: 100%; padding: .85rem;
  font-family: 'Cinzel', serif; font-size: .88rem; font-weight: 700; letter-spacing: .1em;
  background: #C9A84C; color: #1C1108; border: none; border-radius: 9px; cursor: pointer; transition: all .2s;
}
.ia-quiz-continue.ia-show { display: block; }
.ia-quiz-continue:hover { background: #E8C96A; }

/* Touch controls */
#ia-touch {
  display: none; flex-shrink: 0; padding: 8px 16px;
  background: rgba(13,10,6,.95); border-top: 1px solid rgba(201,168,76,.1);
  align-items: center; justify-content: space-between; gap: 12px; height: 88px;
}
#ia-touch.ia-show { display: flex; }
.ia-dpad { display: grid; grid-template-columns: 36px 36px 36px; grid-template-rows: 36px 36px; gap: 3px; }
.ia-dpad-btn {
  background: rgba(201,168,76,.12); border: 1px solid rgba(201,168,76,.25); border-radius: 6px;
  display: flex; align-items: center; justify-content: center; font-size: 1rem;
  cursor: pointer; user-select: none; -webkit-user-select: none; active: background rgba(201,168,76,.3);
  transition: background .1s;
}
.ia-dpad-btn:active { background: rgba(201,168,76,.3); }
.ia-dpad-left  { grid-column: 1; grid-row: 1 / 3; }
.ia-dpad-right { grid-column: 3; grid-row: 1 / 3; }
.ia-dpad-up    { grid-column: 2; grid-row: 1; }
.ia-dpad-space { grid-column: 2; grid-row: 2; }
.ia-action-btns { display: flex; gap: 8px; }
.ia-act-btn {
  width: 52px; height: 52px; border-radius: 50%; background: rgba(201,168,76,.12);
  border: 1.5px solid rgba(201,168,76,.3); display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; cursor: pointer; user-select: none; -webkit-user-select: none;
  font-family: 'Cinzel', serif; font-size: .72rem; font-weight: 700; color: #C9A84C;
  transition: background .1s; flex-direction: column; gap: 1px;
}
.ia-act-btn:active { background: rgba(201,168,76,.3); }
.ia-act-lbl { font-size: .6rem; color: #7A6030; }

/* ════════════════════════════════════
   RESULTS SCREEN
   ════════════════════════════════════ */
#ia-s-results {
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(201,168,76,.1) 0%, transparent 65%), #0D0A06;
  padding: 2.5rem 1.5rem 4rem; gap: 1.2rem;
}
.ia-results-crown { font-size: 3rem; text-align: center; }
.ia-results-title { font-size: clamp(1.6rem, 5vw, 2.2rem); font-weight: 900; color: #C9A84C; text-align: center; letter-spacing: .08em; }
.ia-results-quote { font-family: 'Crimson Text', Georgia, serif; font-style: italic; font-size: 1.05rem; color: #7A6030; text-align: center; max-width: 500px; line-height: 1.65; }
.ia-results-stats { display: flex; gap: .85rem; flex-wrap: wrap; justify-content: center; width: 100%; max-width: 600px; }
.ia-res-stat { background: #16110A; border: 1px solid rgba(201,168,76,.2); border-radius: 10px; padding: .8rem 1.2rem; text-align: center; flex: 1; min-width: 100px; }
.ia-res-stat-label { font-size: .62rem; letter-spacing: .15em; text-transform: uppercase; color: #7A6030; margin-bottom: .3rem; }
.ia-res-stat-val { font-size: 1.6rem; font-weight: 900; color: #C9A84C; }
.ia-missed-wrap { width: 100%; max-width: 600px; }
.ia-missed-title { font-size: .75rem; letter-spacing: .15em; text-transform: uppercase; color: #7A6030; margin-bottom: .75rem; }
.ia-missed-q { background: #16110A; border: 1px solid rgba(201,107,107,.2); border-radius: 8px; padding: .85rem 1rem; margin-bottom: .55rem; }
.ia-missed-q-text { font-family: 'Crimson Text', Georgia, serif; font-style: italic; font-size: .95rem; color: #D48080; margin-bottom: .4rem; }
.ia-missed-q-ans { font-size: .82rem; color: #8FD4A4; }
.ia-results-btns { display: flex; gap: .75rem; flex-wrap: wrap; justify-content: center; width: 100%; max-width: 400px; }

/* ════════════════════════════════════
   DASHBOARD SCREEN
   ════════════════════════════════════ */
#ia-s-dash { background: #0D0A06; padding: 2.5rem 1.5rem 4rem; gap: 1.5rem; }
.ia-dash-global { display: flex; gap: .85rem; flex-wrap: wrap; width: 100%; max-width: 700px; justify-content: center; }
.ia-dash-stat { background: #16110A; border: 1px solid rgba(201,168,76,.2); border-radius: 10px; padding: .85rem 1.3rem; text-align: center; flex: 1; min-width: 110px; }
.ia-dash-stat-label { font-size: .6rem; letter-spacing: .15em; color: #7A6030; margin-bottom: .25rem; }
.ia-dash-stat-val { font-size: 1.5rem; font-weight: 900; color: #C9A84C; }
.ia-dash-books { width: 100%; max-width: 700px; display: flex; flex-direction: column; gap: .65rem; }
.ia-dash-book-row { background: #16110A; border: 1px solid rgba(201,168,76,.15); border-radius: 10px; padding: .9rem 1.1rem; display: flex; align-items: center; gap: 1rem; }
.ia-dash-book-roman { font-size: 1.2rem; font-weight: 900; color: rgba(201,168,76,.35); min-width: 36px; }
.ia-dash-book-info { flex: 1; }
.ia-dash-book-name { font-size: .88rem; font-weight: 600; color: #E8C96A; }
.ia-dash-book-sub { font-size: .75rem; color: #7A6030; margin-top: .15rem; }
.ia-dash-book-right { text-align: right; }
.ia-dash-book-best { font-size: .95rem; font-weight: 700; color: #C9A84C; }
.ia-dash-book-plays { font-size: .7rem; color: #7A6030; margin-top: .1rem; }
.ia-dash-book-prog { width: 100%; height: 3px; background: #241A0C; border-radius: 2px; margin-top: .5rem; overflow: hidden; }
.ia-dash-book-prog-fill { height: 100%; background: #5A9E6F; border-radius: 2px; }

/* ════════════════════════════════════
   SHARED UTILS
   ════════════════════════════════════ */
.ia-back-btn {
  align-self: flex-start; background: transparent; border: 1px solid rgba(201,168,76,.2);
  border-radius: 7px; padding: .4rem .9rem; font-family: 'Cinzel', serif; font-size: .72rem;
  letter-spacing: .08em; color: #7A6030; cursor: pointer; transition: all .2s;
}
.ia-back-btn:hover { border-color: rgba(201,168,76,.5); color: #C9A84C; }

@media (max-width: 480px) {
  .ia-quiz-opts { grid-template-columns: 1fr; }
  .ia-diff-grid { grid-template-columns: 1fr; }
  .ia-book-grid  { grid-template-columns: 1fr; }
}