/* Review study room — scoped to the live recall dialog.
   A full academic workspace rather than a marketing-style modal.
   No changes to FSRS, card events, keyboard controls or the editor. */
#cards-dialog.cards-dialog {
  width: min(1120px, 100vw);
  max-width: 100vw;
  height: 100dvh;
  max-height: 100dvh;
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  background: var(--bg);
  color: var(--ink);
  overflow: auto;
  overscroll-behavior: contain;
}
#cards-dialog::backdrop {
  background: rgba(5, 10, 17, .75);
  backdrop-filter: none;
}
#cards-dialog > .cards-header {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 19px clamp(22px, 5vw, 64px);
  margin: 0;
  gap: 22px;
}
#cards-dialog .cards-header .eyebrow {
  color: var(--accent-text);
  letter-spacing: .12em;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}
#cards-dialog .cards-header h2 {
  margin-top: 3px;
  font-size: clamp(20px, 2vw, 26px);
  letter-spacing: -.03em;
}
#cards-dialog #cards-close {
  border-radius: 8px;
  flex-shrink: 0;
}
#cards-dialog #cards-progress,
#cards-dialog #cards-sync,
#cards-dialog #cards-retry,
#cards-dialog #cards-empty {
  margin-left: clamp(22px, 5vw, 64px);
  margin-right: clamp(22px, 5vw, 64px);
}
#cards-dialog #cards-progress {
  padding: 22px 0 12px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
}
#cards-dialog #cards-content {
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(28px, 5vh, 60px) clamp(22px, 5vw, 64px) 42px;
}
#cards-dialog #cards-topic {
  color: var(--accent-text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
}
#cards-dialog #cards-prompt {
  max-width: 740px;
  font-size: clamp(25px, 3.1vw, 38px);
  line-height: 1.38;
  font-weight: 600;
  letter-spacing: -.035em;
  margin: 20px 0 40px;
  color: var(--ink);
}
#cards-dialog #cards-back {
  margin: 0 0 25px;
}
#cards-dialog #cards-answer {
  border-top: 1px solid var(--line);
  padding: 26px 0 20px;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.7;
}
#cards-dialog #cards-reveal {
  min-height: 54px;
  border-radius: 9px;
  width: min(100%, 420px);
  font-size: 15px;
  font-weight: 600;
}
#cards-dialog .cards-ratings {
  max-width: 760px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
#cards-dialog .cards-ratings button {
  min-height: 76px;
  border-radius: 9px;
  padding: 12px 8px;
  transition: border-color 120ms ease, background 120ms ease;
}
#cards-dialog .cards-ratings button strong { font-weight: 600; font-size: 14px; }
#cards-dialog .cards-ratings button span { font-size: 11px; line-height: 1.35; }
#cards-dialog .cards-tools {
  max-width: 760px;
  padding-top: 18px;
  margin-top: 24px;
  border-top: 1px solid var(--line);
}
#cards-dialog #cards-context {
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
}
#cards-dialog #cards-sync { padding: 12px 0 22px; }
@media (max-width: 600px) {
  #cards-dialog.cards-dialog { width: 100vw; height: 100dvh; }
  #cards-dialog > .cards-header { padding: 15px 18px; }
  #cards-dialog .cards-header h2 { font-size: 20px; }
  #cards-dialog #cards-progress,
  #cards-dialog #cards-sync,
  #cards-dialog #cards-retry,
  #cards-dialog #cards-empty { margin-left: 18px; margin-right: 18px; }
  #cards-dialog #cards-content { padding: 34px 20px 40px; }
  #cards-dialog #cards-prompt { font-size: 26px; margin-bottom: 32px; }
  #cards-dialog .cards-ratings { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #cards-dialog #cards-reveal { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  #cards-dialog .cards-ratings button { transition: none; }
}


/* Review workspace: dedicated dark academic reading area. */
#cards-dialog.cards-dialog {
  background:#0c1422;
  color:#f1f7fe;
  width:100vw;
  height:100dvh;
  max-width:100vw;
  max-height:100dvh;
}
#cards-dialog > .cards-header {
  background:#101c2c;
  border-bottom:1px solid #2a3c51;
  color:#f5f8fd;
  padding:15px clamp(18px,3vw,48px);
}
#cards-dialog .cards-header .eyebrow,
#cards-dialog #cards-topic { color:#76c8f1; }
#cards-dialog .cards-header h2 { color:#f5f8fd; }
#cards-dialog .review-workspace-header-actions { display:flex;align-items:center;gap:10px; }
#cards-dialog .review-workspace-header-actions button { border-color:#344b61;color:#e6f3fd;background:#1b2e43; }
#cards-dialog #cards-progress { color:#adc2d7;border-color:#2b4055;margin:0;padding:18px clamp(18px,3vw,48px); }
#cards-dialog #cards-workspace-layout {
  display:grid;
  grid-template-columns:minmax(0,1fr);
  min-height:calc(100dvh - 145px);
}
#cards-dialog.with-review-tutor #cards-workspace-layout {grid-template-columns:minmax(0,1fr) minmax(290px,340px);}
#cards-dialog #cards-content {width:100%;max-width:950px;margin:auto;padding:clamp(24px,4vh,50px) clamp(20px,5vw,76px) 96px;}
#cards-dialog #cards-topic { font-size:12px;letter-spacing:.09em; }
#cards-dialog #cards-prompt { color:#f7fbff;max-width:820px;font-size:clamp(25px,3vw,38px); }
#cards-dialog #cards-answer {
  border-color:#34475d;
  color:#f3f8fe;
  font-size:clamp(18px,2vw,23px);
}
#cards-dialog #cards-context, #cards-dialog #cards-context p, #cards-dialog .fine { color:#abc1d6; }
#cards-dialog #cards-context { border-color:#30445a; }
#cards-dialog #cards-reveal {background:#188ac5;color:white;border-color:#188ac5;}
#cards-dialog .cards-ratings {max-width:800px;gap:9px;}
#cards-dialog .cards-ratings button {
  min-height:65px;padding:10px 6px;border:1px solid #344d65;
  border-radius:7px;background:#192b40;color:#eaf4fe;
}
#cards-dialog .cards-ratings button span {color:#a9bdd0;}
#cards-dialog .cards-ratings [data-card-rating="Good"] {background:#1c4961;border-color:#4388a9;color:#f4fbff;}
#cards-dialog .cards-ratings [data-card-rating="Good"] span {color:#bcdceb;}
#cards-dialog .cards-ratings button:focus-visible {outline:2px solid #70caff;outline-offset:2px;}
#cards-dialog .cards-tools {border-color:#2b4055;}
#cards-dialog .cards-tools button,#cards-dialog .cards-links a,#cards-dialog #cards-explain {color:#7bd0fd;}
#cards-dialog #cards-empty {color:#f1f7fe;}
#cards-dialog #cards-tutor-panel {
  background:#122136;border-left:1px solid #2d445b;padding:26px 22px;
  color:#f0f7ff;position:sticky;top:0;align-self:start;min-height:calc(100dvh - 145px);
}
#cards-dialog .cards-tutor-heading {display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:15px;}
#cards-dialog .cards-tutor-heading h3 {font-size:21px;letter-spacing:-.025em;margin-top:5px;color:#fff;}
#cards-dialog #cards-tutor-panel .fine {color:#a9bfd3;line-height:1.6;margin-bottom:17px;}
#cards-dialog #cards-tutor-explain {width:100%;min-height:44px;background:#20435e;color:#e9f8ff;border:1px solid #477d9e;border-radius:8px;}
#cards-dialog .cards-tutor-response {white-space:pre-wrap;color:#e5f3fd;line-height:1.65;margin:18px 0;}
#cards-dialog #cards-tutor-close {font-size:22px;color:#c0d9ec;}
@media(max-width:800px){
  #cards-dialog.with-review-tutor #cards-workspace-layout {grid-template-columns:minmax(0,1fr);}
  #cards-dialog #cards-tutor-panel {
    position:fixed;z-index:5;bottom:0;top:auto;left:0;right:0;
    min-height:0;max-height:65dvh;overflow:auto;
    border:1px solid #395069;border-radius:16px 16px 0 0;
    box-shadow:0 -20px 50px rgba(0,0,0,.4);
  }
  #cards-dialog #cards-content {padding:30px 20px 90px;}
  #cards-dialog .cards-ratings {grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;}
  #cards-dialog .cards-ratings button {padding:10px 2px;min-height:70px;}
  #cards-dialog .cards-ratings button span {font-size:10px;}
  #cards-dialog .cards-header h2 {font-size:19px;}
}


/* Spectrum neon: controlled accents from the supplied cyan-to-orange palette.
   Keep all reading text on near-black for excellent legibility. */
#cards-dialog.cards-dialog {
  background:
    radial-gradient(ellipse at 12% 4%,rgba(0,255,218,.11),transparent 29%),
    radial-gradient(ellipse at 91% 7%,rgba(252,40,111,.10),transparent 31%),
    #080d1b;
  color:#f8fbff;
}
#cards-dialog > .cards-header {
  background:linear-gradient(102deg,#061925 0%,#13172e 46%,#291028 77%,#221626 100%);
  border-bottom:1px solid transparent;
  box-shadow:inset 0 -2px 0 rgba(0,239,219,.52),0 8px 32px rgba(0,0,0,.27);
}
#cards-dialog > .cards-header::after {
  content:"";position:absolute;bottom:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,#00f5d4 0%,#28c7f2 23%,#712af1 48%,#f00073 72%,#ff732e 91%,#ffbd19 100%);
}
#cards-dialog #cards-progress {color:#c5d4e8;border-bottom:1px solid rgba(99,136,172,.28);}
#cards-dialog #cards-prompt {
  text-shadow:0 0 20px rgba(51,202,255,.10);
  color:#fff;
}
#cards-dialog #cards-topic {
  color:#00f5d4;
  text-shadow:0 0 16px rgba(0,245,212,.22);
}
#cards-dialog #cards-answer {border-top:1px solid rgba(68,207,247,.43);}
#cards-dialog #cards-reveal {
  background:linear-gradient(110deg,#00cdbb,#168cf4);
  border:1px solid #51f0ed;
  color:#03111b;
  box-shadow:0 0 22px rgba(3,200,231,.17);
}
#cards-dialog #cards-reveal:hover {filter:brightness(1.08);}
#cards-dialog .cards-ratings button {
  background:#111a30;
  border:1px solid #344461;
  color:#fff;
  box-shadow:inset 0 2px 0 var(--rating-accent),0 2px 12px rgba(0,0,0,.16);
}
#cards-dialog .cards-ratings [data-card-rating="Again"] {--rating-accent:#f00073;}
#cards-dialog .cards-ratings [data-card-rating="Hard"] {--rating-accent:#ff832e;}
#cards-dialog .cards-ratings [data-card-rating="Good"] {--rating-accent:#00e6bf;background:#112e36;border-color:#2e8b83;}
#cards-dialog .cards-ratings [data-card-rating="Easy"] {--rating-accent:#28b5ff;}
#cards-dialog .cards-ratings button:hover {
  border-color:var(--rating-accent);
  box-shadow:inset 0 3px 0 var(--rating-accent),0 0 16px color-mix(in srgb,var(--rating-accent) 24%,transparent);
}
#cards-dialog #cards-tutor-panel {
  background:linear-gradient(165deg,#171634 0%,#111a30 42%,#101523 100%);
  border-left:1px solid rgba(159,87,255,.55);
  box-shadow:inset 2px 0 20px rgba(150,43,250,.06);
}
#cards-dialog .cards-tutor-heading .eyebrow {color:#d397ff;}
#cards-dialog #cards-tutor-explain {
  background:linear-gradient(105deg,#4b207f,#852b83);
  border:1px solid #b76bea;
  color:#fff;
}
#cards-dialog #cards-explain,#cards-dialog .cards-tools button {color:#59e9df;}
#cards-dialog .cards-links a {color:#7ccaff;}
#cards-dialog .cards-tools {border-top-color:#344461;}
#cards-dialog #cards-tutor-close {color:#f2a0d3;}
@media(max-width:800px){
  #cards-dialog #cards-tutor-panel {border-top:2px solid #bb69ee;border-left:0;}
}