/* ══════════════════════════════════════════════════
   ALMANCAPRATIK — flashcard.css  v4.0
   Bricolage Grotesque + Figtree + JetBrains Mono
   Premium dark, no emoji, Anki-grade feature set
══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,500;12..96,600;12..96,700&family=Figtree:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

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

/* ── Design Tokens ── */
:root {
  --bg:     #07080f;
  --bg-deep:#050609;
  --s1:     rgba(255,255,255,0.026);
  --s2:     rgba(255,255,255,0.050);
  --s3:     rgba(255,255,255,0.082);
  --br:     rgba(255,255,255,0.062);
  --br2:    rgba(255,255,255,0.120);
  --br3:    rgba(255,255,255,0.200);
  --t1:     #ede9e2;
  --t2:     rgba(237,233,226,0.54);
  --t3:     rgba(237,233,226,0.28);
  --t4:     rgba(237,233,226,0.14);

  /* Accents */
  --v:      #8b5cf6;
  --vl:     #a78bfa;
  --vd:     #6d28d9;
  --vg:     rgba(139,92,246,0.18);
  --g:      #c4933e;
  --gl:     #d4a84e;
  --gd:     #a67932;
  --gg:     rgba(196,147,62,0.18);
  --gr:     #3bb87a;
  --grl:    #4ecb8b;
  --grg:    rgba(59,184,122,0.16);
  --re:     #e05555;
  --rel:    #ef6c6c;
  --reg:    rgba(224,85,85,0.16);
  --or:     #d97706;
  --orl:    #f59e0b;
  --org:    rgba(217,119,6,0.16);
  --bl:     #3b9fd6;
  --bll:    #60b4e8;
  --blg:    rgba(59,159,214,0.16);

  /* Typography */
  --fd:     'Bricolage Grotesque', sans-serif;
  --fb:     'Figtree', sans-serif;
  --fm:     'JetBrains Mono', monospace;

  /* Motion */
  --ease:   0.20s cubic-bezier(0.4,0,0.2,1);
  --spring: 0.42s cubic-bezier(0.22,1,0.36,1);
  --flip:   0.52s cubic-bezier(0.4,0.2,0.2,1);

  /* Layout */
  --radius-sm:  8px;
  --radius-md:  12px;
  --radius-lg:  18px;
  --radius-xl:  24px;
}

body {
  font-family: var(--fb);
  background: var(--bg);
  color: var(--t1);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
}

/* ══════════════════════════════════════════════════
   BACKGROUND CANVAS
══════════════════════════════════════════════════ */
.bg-canvas {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none; overflow: hidden;
}
.bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.014) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.014) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 65% at 50% 0%, black 15%, transparent 100%);
}
.bg-orb {
  position: absolute; border-radius: 50%;
  filter: blur(140px);
  animation: drift 18s ease-in-out infinite alternate;
}
.bg-orb-1 { width: 640px; height: 640px; top: -240px; left: -160px; background: radial-gradient(circle, rgba(139,92,246,0.08), transparent 70%); }
.bg-orb-2 { width: 480px; height: 480px; bottom: 5%; right: -120px; background: radial-gradient(circle, rgba(196,147,62,0.06), transparent 70%); animation-delay: -9s; }
.bg-orb-3 { width: 360px; height: 360px; top: 45%; left: 48%; background: radial-gradient(circle, rgba(59,184,122,0.04), transparent 70%); animation-delay: -4s; }

@keyframes drift {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(32px, 22px) scale(1.07); }
}

/* ══════════════════════════════════════════════════
   SCREEN SYSTEM
══════════════════════════════════════════════════ */
.screen {
  position: relative; z-index: 1;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 72px 20px 56px;
}
.screen.hidden { display: none !important; }

/* ══════════════════════════════════════════════════
   SCREEN: SETUP
══════════════════════════════════════════════════ */
.setup-wrap {
  width: 100%; max-width: 560px;
  animation: fadeUp var(--spring) both;
}

/* Eyebrow */
.setup-eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--fm); font-size: 10px; font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--g); margin-bottom: 18px;
  padding: 4px 14px 4px 9px;
  border: 1px solid rgba(196,147,62,0.22);
  border-radius: 999px;
  background: rgba(196,147,62,0.06);
}
.eyebrow-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--g);
  box-shadow: 0 0 8px var(--g);
  animation: blink 2.8s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .3; transform: scale(.55); }
}

/* Title */
.setup-title {
  font-family: var(--fd);
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 700;
  letter-spacing: -.032em;
  line-height: .98;
  color: var(--t1);
  margin-bottom: 10px;
}
.setup-title-em {
  display: block;
  background: linear-gradient(130deg, #d4a84e 0%, #c4933e 40%, #8b5cf6 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.setup-sub {
  font-size: 13px; line-height: 1.85; color: var(--t2); margin-bottom: 28px;
  font-weight: 400;
}
.setup-sub strong { color: var(--t1); font-weight: 600; }

/* ── SRS Strip ── */
.srs-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 8px; margin-bottom: 24px;
}
.srs-strip-cell {
  background: var(--s1); border: 1px solid var(--br);
  border-radius: var(--radius-md); padding: 13px 8px;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  transition: var(--ease);
}
.srs-strip-cell:hover { border-color: var(--br2); background: var(--s2); }
.srs-today-cell {
  border-color: rgba(196,147,62,0.22);
  background: rgba(196,147,62,0.045);
}
.srs-today-cell:hover {
  background: rgba(196,147,62,0.08);
  border-color: rgba(196,147,62,0.36);
}
.srs-strip-num {
  font-family: var(--fd); font-size: 22px; font-weight: 700; line-height: 1;
}
.srs-strip-num.today  { color: var(--g); }
.srs-strip-num.new    { color: var(--bl); }
.srs-strip-num.due    { color: var(--re); }
.srs-strip-num.done   { color: var(--gr); }
.srs-strip-label {
  font-family: var(--fm); font-size: 9px; color: var(--t3);
  text-transform: uppercase; letter-spacing: .08em;
}

/* ── Learning Info Box ── */
.learning-info-box {
  background: var(--s1); border: 1px solid var(--br);
  border-radius: var(--radius-md); padding: 14px 16px; margin-bottom: 14px;
}
.lib-title {
  font-family: var(--fd); font-size: 11px; font-weight: 600;
  color: var(--t2); letter-spacing: .04em; margin-bottom: 10px;
}
.lib-row {
  display: flex; align-items: flex-start; gap: 9px;
  font-size: 12px; color: var(--t3); line-height: 1.65; margin-bottom: 6px;
}
.lib-row:last-child { margin-bottom: 0; }
.lib-row strong { color: var(--t2); font-weight: 600; }
.lib-dot {
  width: 6px; height: 6px; border-radius: 50%;
  flex-shrink: 0; margin-top: 5px;
}
.lib-dot.new   { background: var(--bl); }
.lib-dot.due   { background: var(--re); }
.lib-dot.again { background: var(--or); }

/* ── Source Card ── */
.source-card {
  background: var(--s1); border: 1px solid var(--br);
  border-radius: var(--radius-lg); padding: 18px 20px; margin-bottom: 12px;
}
.source-label {
  font-family: var(--fm); font-size: 9px; font-weight: 500;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--t3); margin-bottom: 10px;
}
.source-tabs { display: flex; gap: 5px; margin-bottom: 12px; }
.source-tab {
  flex: 1; padding: 8px 10px;
  background: var(--s1); border: 1px solid var(--br);
  border-radius: var(--radius-sm); color: var(--t3);
  font-family: var(--fb); font-size: 12px; font-weight: 500;
  cursor: pointer; transition: var(--ease); text-align: center;
}
.source-tab:hover { background: var(--s2); color: var(--t2); }
.source-tab.active {
  background: rgba(196,147,62,0.09); border-color: rgba(196,147,62,0.28);
  color: var(--g);
}
.list-grid {
  display: flex; flex-direction: column; gap: 5px;
  max-height: 175px; overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.07) transparent;
}
.list-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 12px; background: rgba(255,255,255,0.022);
  border: 1px solid var(--br); border-radius: var(--radius-sm);
  cursor: pointer; transition: var(--ease);
}
.list-item:hover { background: var(--s2); border-color: var(--br2); }
.list-item.selected { background: rgba(196,147,62,0.07); border-color: rgba(196,147,62,0.28); }
.list-item-name { font-size: 13px; font-weight: 500; color: var(--t1); }
.list-item.selected .list-item-name { color: var(--g); }
.list-item-count { font-size: 11px; color: var(--t3); }
.list-check {
  width: 16px; height: 16px; border: 1.5px solid var(--br2);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: var(--ease);
}
.list-item.selected .list-check { background: var(--g); border-color: var(--g); }
.list-check-dot { display: none; width: 6px; height: 6px; background: #07080f; border-radius: 50%; }
.list-item.selected .list-check-dot { display: block; }

/* ── Settings Rows ── */
.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--s1); border: 1px solid var(--br);
  border-radius: var(--radius-md); padding: 14px 18px; margin-bottom: 10px;
  gap: 10px; flex-wrap: wrap;
}
.setting-label { font-size: 13px; color: var(--t2); font-weight: 400; }

.stepper { display: flex; align-items: center; gap: 10px; }
.stepper-btn {
  width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--br); background: var(--s2); color: var(--t1);
  font-size: 15px; cursor: pointer; transition: var(--ease);
  display: flex; align-items: center; justify-content: center; line-height: 1;
}
.stepper-btn:hover { border-color: var(--v); background: var(--vg); color: var(--vl); }
.stepper-val {
  font-family: var(--fd); font-size: 20px; font-weight: 700;
  min-width: 28px; text-align: center; letter-spacing: -.02em;
}

.order-btns { display: flex; gap: 5px; }
.order-btn {
  padding: 6px 12px; background: var(--s1);
  border: 1px solid var(--br); border-radius: var(--radius-sm);
  color: var(--t3); font-family: var(--fb); font-size: 11px;
  font-weight: 500; cursor: pointer; transition: var(--ease); letter-spacing: .02em;
}
.order-btn:hover { background: var(--s2); color: var(--t2); }
.order-btn.active {
  background: rgba(139,92,246,0.09); border-color: rgba(139,92,246,0.28); color: var(--vl);
}

.word-count-info {
  font-family: var(--fm); font-size: 11px; color: var(--t3);
  text-align: right; margin-bottom: 18px;
}
.word-count-info span { color: var(--g); font-weight: 500; }

/* ── Start Button ── */
.btn-start {
  width: 100%; padding: 15px;
  background: linear-gradient(140deg, var(--v), var(--vd));
  border: none; border-radius: var(--radius-lg);
  color: #fff; font-family: var(--fd); font-size: 15px; font-weight: 700;
  cursor: pointer; transition: var(--spring);
  box-shadow: 0 6px 28px rgba(139,92,246,0.30);
  letter-spacing: .015em;
  display: flex; align-items: center; justify-content: center; gap: 9px;
}
.btn-start:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(139,92,246,0.42); }
.btn-start:active { transform: translateY(0) scale(.99); }
.btn-start:disabled { opacity: .4; cursor: default; transform: none; box-shadow: none; }

.setup-hint {
  text-align: center; font-size: 11.5px; color: var(--t3);
  margin-top: 10px; line-height: 1.8;
}
.setup-hint kbd {
  display: inline-block; padding: 1px 5px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 4px; font-family: var(--fm); font-size: 9.5px; color: var(--t2);
}

/* ── Login Card ── */
.login-card {
  display: flex; align-items: center; gap: 14px;
  background: rgba(196,147,62,0.05); border: 1px solid rgba(196,147,62,0.18);
  border-radius: var(--radius-lg); padding: 18px 20px; margin-bottom: 22px;
}
.login-card-icon {
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  background: rgba(196,147,62,0.12); border: 1px solid rgba(196,147,62,0.2);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  color: var(--g);
}
.login-card-body { flex: 1; }
.login-card-title { font-family: var(--fd); font-size: 13px; font-weight: 600; color: var(--t1); margin-bottom: 2px; }
.login-card-desc  { font-size: 11.5px; color: var(--t2); line-height: 1.65; }
.login-card-btn {
  padding: 8px 16px; background: var(--g); border: none; border-radius: var(--radius-sm);
  color: #07080f; font-family: var(--fb); font-size: 12px; font-weight: 700;
  text-decoration: none; white-space: nowrap; transition: var(--ease); cursor: pointer;
}
.login-card-btn:hover { background: var(--gl); }

/* ══════════════════════════════════════════════════
   SCREEN: STUDY
══════════════════════════════════════════════════ */
.study-wrap {
  width: 100%; max-width: 640px;
  display: flex; flex-direction: column; gap: 16px;
  animation: fadeUp var(--spring) both;
}

/* ── Topbar ── */
.study-topbar {
  display: flex; align-items: center; gap: 12px;
}
.progress-section {
  flex: 1; display: flex; align-items: center; gap: 10px;
}
.progress-bar {
  flex: 1; height: 4px; background: rgba(255,255,255,0.06);
  border-radius: 99px; overflow: hidden;
}
.progress-fill {
  height: 100%; border-radius: 99px; width: 0%;
  background: linear-gradient(90deg, var(--v), var(--bl));
  transition: width .55s var(--spring);
}
.progress-label {
  font-family: var(--fm); font-size: 11px; color: var(--t3);
  white-space: nowrap; font-weight: 500; letter-spacing: .02em;
}

/* Topbar right actions */
.topbar-actions {
  display: flex; align-items: center; gap: 6px;
}
.session-timer {
  font-family: var(--fm); font-size: 11px; color: var(--t3);
  font-weight: 500; letter-spacing: .05em; padding: 4px 10px;
  background: var(--s1); border: 1px solid var(--br); border-radius: 6px;
  min-width: 46px; text-align: center;
}
.topbar-btn {
  width: 30px; height: 30px; border-radius: var(--radius-sm);
  border: 1px solid var(--br); background: var(--s1);
  color: var(--t3); cursor: pointer; transition: var(--ease);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.topbar-btn:hover { border-color: var(--br2); background: var(--s2); color: var(--t2); }
.topbar-btn.active { border-color: rgba(196,147,62,0.3); background: rgba(196,147,62,0.08); color: var(--g); }
.topbar-btn.tts-off { color: var(--t4); }
.topbar-btn.tts-off svg { opacity: .45; }
.topbar-btn svg { width: 14px; height: 14px; }

/* Session stats */
.session-stats-row {
  display: flex; gap: 6px; flex-wrap: wrap;
}
.ss-pip {
  font-family: var(--fm); font-size: 9.5px; font-weight: 500;
  padding: 3px 8px; border-radius: 5px; letter-spacing: .02em;
}
.ss-pip.new      { background: rgba(59,159,214,0.10); border: 1px solid rgba(59,159,214,0.20); color: var(--bll); }
.ss-pip.due      { background: rgba(224,85,85,0.10);  border: 1px solid rgba(224,85,85,0.20);  color: var(--rel); }
.ss-pip.learning { background: rgba(217,119,6,0.10);  border: 1px solid rgba(217,119,6,0.20);  color: var(--orl); }
.ss-pip.done     { background: rgba(59,184,122,0.10); border: 1px solid rgba(59,184,122,0.20); color: var(--grl); }

/* ── 3D Flashcard ── */
.fc-scene {
  perspective: 1400px; width: 100%;
  cursor: pointer; user-select: none; outline: none;
}
.fc-scene:focus-visible { outline: 1.5px solid var(--v); border-radius: var(--radius-xl); outline-offset: 3px; }

.fc-card {
  width: 100%; min-height: 270px;
  position: relative; transform-style: preserve-3d;
  transition: transform var(--flip);
}
.fc-card.flipped { transform: rotateY(180deg); }

.fc-face {
  position: absolute; inset: 0; backface-visibility: hidden;
  -webkit-backface-visibility: hidden; border-radius: var(--radius-xl);
  min-height: 270px; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 44px 40px; border: 1px solid var(--br);
}
.fc-front {
  background: var(--s1);
  background-image: radial-gradient(ellipse 65% 55% at 50% 0%, rgba(196,147,62,0.055), transparent);
}
.fc-back {
  transform: rotateY(180deg);
  background: var(--s1);
  background-image: radial-gradient(ellipse 65% 55% at 50% 0%, rgba(59,184,122,0.055), transparent);
}
.fc-scene:hover .fc-front,
.fc-scene:hover .fc-back { border-color: var(--br2); }

/* ── Status badge ── */
.fc-status-badge {
  position: absolute; top: 14px; left: 18px;
  font-family: var(--fm); font-size: 9.5px; font-weight: 500;
  letter-spacing: .06em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; border: 1px solid transparent;
  transition: var(--ease);
}
.badge-new      { background: rgba(59,159,214,0.09);  border-color: rgba(59,159,214,0.22);  color: var(--bll); }
.badge-learning { background: rgba(217,119,6,0.09);   border-color: rgba(217,119,6,0.22);   color: var(--orl); }
.badge-due      { background: rgba(224,85,85,0.09);   border-color: rgba(224,85,85,0.22);   color: var(--rel); }
.badge-learned  { background: rgba(59,184,122,0.09);  border-color: rgba(59,184,122,0.22);  color: var(--grl); }

/* ── Lang tag ── */
.fc-lang-tag {
  font-family: var(--fm); font-size: 9.5px; font-weight: 500;
  letter-spacing: .09em; text-transform: uppercase;
  padding: 3px 12px; border-radius: 999px; margin-bottom: 20px;
}
.fc-front .fc-lang-tag { background: rgba(196,147,62,0.08); border: 1px solid rgba(196,147,62,0.22); color: var(--g); }
.fc-back  .fc-lang-tag { background: rgba(59,184,122,0.08); border: 1px solid rgba(59,184,122,0.22); color: var(--grl); }

/* ── Card word / meaning ── */
.fc-word {
  font-family: var(--fd);
  font-size: clamp(26px, 5vw, 46px);
  font-weight: 700; letter-spacing: -.035em; line-height: 1.1;
  color: var(--t1); text-align: center; word-break: break-word;
}
.fc-meaning {
  font-family: var(--fd); font-size: clamp(20px, 3.8vw, 32px);
  font-weight: 600; color: var(--grl); text-align: center; word-break: break-word;
  letter-spacing: -.025em;
}
.fc-extra-meanings { display: flex; flex-direction: column; gap: 4px; text-align: center; margin-top: 10px; }
.fc-extra-meaning  { font-size: 13px; color: var(--t2); line-height: 1.5; }
.fc-extra-sep      { width: 36px; height: 1px; background: rgba(255,255,255,0.07); margin: 5px auto; }

/* ── Hint & card num ── */
.fc-hint {
  margin-top: 18px; font-size: 11.5px; color: var(--t3);
  display: flex; align-items: center; gap: 6px;
  animation: breathe 2.8s ease-in-out infinite;
}
.fc-shortcut-hint {
  margin-top: 6px; font-size: 10px; color: var(--t3); font-family: var(--fm);
}
.fc-shortcut-hint kbd {
  display: inline-block; padding: 1px 5px;
  background: rgba(255,255,255,0.055); border: 1px solid rgba(255,255,255,0.09);
  border-radius: 3px; font-size: 9px; color: var(--t2);
}
.fc-card-num {
  position: absolute; top: 15px; right: 18px;
  font-family: var(--fm); font-size: 10px; color: var(--t3); letter-spacing: .03em;
}

@keyframes breathe { 0%,100% { opacity:.4; } 50% { opacity:.85; } }

/* ── TTS Replay Button (on card) ── */
.tts-replay-btn {
  position: absolute; bottom: 16px; right: 18px;
  width: 32px; height: 32px; border-radius: var(--radius-sm);
  border: 1px solid var(--br); background: var(--s2);
  color: var(--t3); cursor: pointer; transition: var(--ease);
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
}
.tts-replay-btn:hover { border-color: var(--br2); color: var(--t1); background: var(--s3); }
.tts-replay-btn svg { width: 13px; height: 13px; }
.tts-replay-btn.speaking { color: var(--g); border-color: rgba(196,147,62,0.3); animation: pulse-tts 0.9s ease-in-out infinite; }
@keyframes pulse-tts { 0%,100% { box-shadow: 0 0 0 0 rgba(196,147,62,0.25); } 50% { box-shadow: 0 0 0 5px rgba(196,147,62,0); } }

/* ══════════════════════════════════════════════════
   CARD INFO PANEL
══════════════════════════════════════════════════ */
.card-info-panel {
  background: var(--s1); border: 1px solid var(--br);
  border-radius: var(--radius-md); padding: 0;
  overflow: hidden;
  max-height: 0; opacity: 0;
  transition: max-height .3s var(--spring), opacity .25s ease, padding .3s ease;
}
.card-info-panel.visible {
  max-height: 220px; opacity: 1; padding: 14px 18px;
}
.cip-header {
  font-family: var(--fm); font-size: 9.5px; font-weight: 500;
  letter-spacing: .10em; text-transform: uppercase;
  color: var(--t3); margin-bottom: 10px;
}
.cip-grid { display: flex; flex-direction: column; gap: 0; }
.cip-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 5px 0; border-bottom: 1px solid var(--br);
  font-size: 12px;
}
.cip-row:last-child { border-bottom: none; }
.cip-row span:first-child { color: var(--t3); font-weight: 400; }
.cip-row span:last-child  { color: var(--t1); font-family: var(--fm); font-size: 11px; font-weight: 500; }
.cip-row span.cip-state-new      { color: var(--bll); }
.cip-row span.cip-state-learning { color: var(--orl); }
.cip-row span.cip-state-due      { color: var(--rel); }
.cip-row span.cip-state-learned  { color: var(--grl); }

/* ══════════════════════════════════════════════════
   RATING BUTTONS
══════════════════════════════════════════════════ */
.rating-wrap { display: none; flex-direction: column; gap: 10px; }
.rating-wrap.visible { display: flex; animation: fadeUp .28s var(--spring) both; }
.rating-header {
  display: flex; align-items: center; justify-content: space-between;
}
.rating-label { font-size: 11.5px; color: var(--t3); letter-spacing: .02em; }
.rating-keyboard-hint { font-family: var(--fm); font-size: 9.5px; color: var(--t3); }

.rating-btns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }

.rate-btn {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  padding: 14px 6px; border-radius: var(--radius-md); border: 1px solid var(--br);
  background: var(--s1); cursor: pointer; transition: var(--spring);
  font-family: var(--fb); position: relative; overflow: hidden;
}
.rate-btn::before {
  content: ''; position: absolute; inset: 0; opacity: 0;
  transition: opacity var(--ease);
}
.rate-btn:hover { transform: translateY(-2px); }
.rate-btn:hover::before { opacity: 1; }
.rate-btn:active { transform: translateY(0) scale(.975); }

.rate-btn.again { --rc: var(--rel);  --rcg: var(--reg); }
.rate-btn.hard  { --rc: var(--orl);  --rcg: var(--org); }
.rate-btn.good  { --rc: var(--vl);   --rcg: var(--vg);  }
.rate-btn.easy  { --rc: var(--grl);  --rcg: var(--grg); }

.rate-btn { color: var(--rc); }
.rate-btn:hover { border-color: var(--rc); box-shadow: 0 6px 20px var(--rcg); }
.rate-btn::before { background: var(--rcg); }

.rate-icon {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--rcg); border: 1px solid var(--rc);
  display: flex; align-items: center; justify-content: center;
  transition: var(--ease);
}
.rate-icon svg { width: 13px; height: 13px; color: var(--rc); }
.rate-label { font-size: 12px; font-weight: 600; letter-spacing: .01em; }
.rate-days  { font-family: var(--fm); font-size: 9.5px; color: var(--t3); }
.rate-key   {
  position: absolute; top: 6px; right: 8px;
  font-family: var(--fm); font-size: 9px; color: var(--t3);
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 3px; padding: 1px 4px;
}

/* Back button */
.study-back-row { display: flex; justify-content: center; }
.btn-back-study {
  background: transparent; border: 1px solid var(--br);
  border-radius: var(--radius-sm); padding: 8px 18px;
  color: var(--t3); font-family: var(--fb); font-size: 12px; font-weight: 500;
  cursor: pointer; transition: var(--ease);
}
.btn-back-study:hover { border-color: var(--br2); color: var(--t2); }

/* ══════════════════════════════════════════════════
   SCREEN: RESULT
══════════════════════════════════════════════════ */
.result-wrap { text-align: center; max-width: 560px; animation: fadeUp var(--spring) both; }

/* Streak badge */
.result-streak {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(196,147,62,0.07); border: 1px solid rgba(196,147,62,0.20);
  border-radius: 999px; padding: 5px 16px 5px 10px;
  margin-bottom: 20px; font-size: 12px; color: var(--g);
}
.result-streak-flame {
  width: 18px; height: 18px; border-radius: 50%;
  background: rgba(196,147,62,0.15); border: 1px solid rgba(196,147,62,0.25);
  display: flex; align-items: center; justify-content: center;
}
.result-streak-flame svg { width: 10px; height: 10px; color: var(--g); }
.result-streak strong { font-weight: 700; color: var(--gl); }

.result-title {
  font-family: var(--fd); font-size: clamp(28px, 5.5vw, 42px);
  font-weight: 700; letter-spacing: -.035em; margin-bottom: 8px;
}
.result-score {
  font-family: var(--fd); font-size: clamp(48px, 9vw, 72px);
  font-weight: 700; line-height: 1; letter-spacing: -.04em;
  background: linear-gradient(130deg, var(--g), var(--v));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 6px;
}
.result-msg { color: var(--t2); font-size: 13.5px; line-height: 1.75; margin-bottom: 24px; }

.result-breakdown { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 24px; }
.rb-cell { background: var(--s1); border: 1px solid var(--br); border-radius: var(--radius-md); padding: 14px 8px; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.rb-num  { font-family: var(--fd); font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.rb-num.again { color: var(--rel); }
.rb-num.hard  { color: var(--orl); }
.rb-num.good  { color: var(--vl);  }
.rb-num.easy  { color: var(--grl); }
.rb-label { font-family: var(--fm); font-size: 9px; color: var(--t3); text-transform: uppercase; letter-spacing: .07em; }

.result-srs-note {
  padding: 14px 18px; margin-bottom: 20px;
  background: rgba(196,147,62,0.05); border: 1px solid rgba(196,147,62,0.16);
  border-radius: var(--radius-md); font-size: 12.5px; color: var(--t2);
  line-height: 1.85; text-align: left;
}
.result-srs-note strong { color: var(--g); font-weight: 600; }

/* ── Heatmap ── */
.result-heatmap {
  background: var(--s1); border: 1px solid var(--br);
  border-radius: var(--radius-md); padding: 16px 18px; margin-bottom: 20px;
  text-align: left;
}
.heatmap-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.heatmap-title {
  font-family: var(--fm); font-size: 9.5px; font-weight: 500;
  letter-spacing: .09em; text-transform: uppercase; color: var(--t3);
}
.heatmap-legend {
  display: flex; align-items: center; gap: 4px;
  font-family: var(--fm); font-size: 9px; color: var(--t3);
}
.heatmap-legend-swatch {
  width: 8px; height: 8px; border-radius: 2px;
}
.heatmap-grid {
  display: grid; grid-template-columns: repeat(30, 1fr); gap: 3px;
}
.hm-cell {
  aspect-ratio: 1; border-radius: 2px;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.04);
  transition: var(--ease); cursor: default;
  position: relative;
}
.hm-cell:hover::after {
  content: attr(data-tooltip);
  position: absolute; bottom: calc(100% + 5px); left: 50%;
  transform: translateX(-50%);
  background: #1a1a2e; border: 1px solid var(--br2);
  border-radius: 5px; padding: 3px 7px;
  font-family: var(--fm); font-size: 9px; color: var(--t2);
  white-space: nowrap; z-index: 10; pointer-events: none;
}
.hm-cell.lv-1 { background: rgba(139,92,246,0.20); border-color: rgba(139,92,246,0.15); }
.hm-cell.lv-2 { background: rgba(139,92,246,0.40); border-color: rgba(139,92,246,0.25); }
.hm-cell.lv-3 { background: rgba(139,92,246,0.62); border-color: rgba(139,92,246,0.40); }
.hm-cell.lv-4 { background: rgba(139,92,246,0.85); border-color: rgba(139,92,246,0.55); }

.result-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 4px; }
.btn-restart {
  background: linear-gradient(140deg, var(--v), var(--vd));
  border: none; border-radius: var(--radius-md); padding: 13px 28px;
  color: #fff; font-family: var(--fd); font-size: 14px; font-weight: 700;
  cursor: pointer; transition: var(--spring); box-shadow: 0 6px 24px var(--vg);
  letter-spacing: .01em;
}
.btn-restart:hover { transform: translateY(-2px); box-shadow: 0 14px 40px var(--vg); }
.btn-home {
  background: transparent; border: 1px solid var(--br); border-radius: var(--radius-md);
  padding: 13px 24px; color: var(--t2); font-family: var(--fd); font-size: 14px;
  font-weight: 600; cursor: pointer; transition: var(--ease); text-decoration: none;
  display: inline-block;
}
.btn-home:hover { border-color: var(--br2); color: var(--t1); }

/* ══════════════════════════════════════════════════
   LOADER
══════════════════════════════════════════════════ */
.loader-wrap { text-align: center; }
.loader-ring {
  width: 40px; height: 40px;
  border: 2.5px solid rgba(255,255,255,0.06);
  border-top-color: var(--v); border-radius: 50%;
  animation: spin .9s linear infinite; margin: 0 auto 16px;
}
.loader-text { font-size: 13px; color: var(--t2); }

/* ══════════════════════════════════════════════════
   UTILS
══════════════════════════════════════════════════ */
@keyframes fadeUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
@keyframes spin   { to { transform: rotate(360deg); } }

/* ══════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════ */
@media (max-width: 600px) {
  .rating-btns { grid-template-columns: 1fr 1fr; }
  .fc-face { padding: 34px 22px; min-height: 240px; }
  .rating-keyboard-hint { display: none; }
  .result-breakdown { grid-template-columns: 1fr 1fr; }
  .srs-strip { grid-template-columns: 1fr 1fr; gap: 7px; }
  .login-card { flex-direction: column; text-align: center; }
  .heatmap-grid { grid-template-columns: repeat(15, 1fr); }
  .topbar-actions { gap: 4px; }
}
@media (max-width: 420px) {
  .fc-face { padding: 26px 16px; }
  .fc-word { font-size: 24px; }
  .fc-meaning { font-size: 18px; }
  .rate-btn { padding: 12px 4px; }
  .study-topbar { flex-wrap: wrap; }
  .session-stats-row { flex-wrap: wrap; }
}