/* ═══════════════════════════════════════════════════
   KOBAÏAN — Celestial Dark v3
   Rich typography · Nebula depths · Mobile-first
   ═══════════════════════════════════════════════════ */

:root {
  --void:       #050208;
  --abyss:      #0a0510;
  --deep:       #0f0815;
  --surface:    #150d1c;
  --card:       #1a1024;
  --card2:      #221430;
  --border:     #2d1a3f;
  --border2:    #3f2458;
  --crimson:    #c4141f;
  --crimson-mid:#8c0e17;
  --crimson-dim:#3a0812;
  --crimson-hot:#ff2a3a;
  --ember:      #ff4455;
  --gold:       #d4954e;
  --gold-dim:   #7a5028;
  --gold-pale:  #e8c88a;
  --nebula:     #2a1040;
  --nebula-bright: #4a1a6a;
  --cream:      #ede0d4;
  --body:       #c4b5c8;
  --muted:      #7a6888;
  --glow-red:   0 0 20px rgba(196,20,31,0.5), 0 0 60px rgba(196,20,31,0.15);
  --glow-gold:  0 0 14px rgba(212,149,78,0.4);
  --glow-nebula:0 0 40px rgba(74,26,106,0.3);
  --radius:     4px;
  --font-display: 'Cormorant SC', serif;
  --font-head:   'Cormorant Garamond', serif;
  --font-body:   'Jost', sans-serif;
  --ease-out:   cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring:cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html, body {
  width: 100%; height: 100%;
  background: var(--void);
  color: var(--body);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── BACKGROUND LAYERS ── */
#starfield, #nebula {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
#nebula { z-index: 1; }

.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ── SCREENS ── */
.screen {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: none;
  flex-direction: column;
  overflow: hidden;
}
.screen.active {
  display: flex;
  animation: screenReveal 0.55s var(--ease-out) forwards;
}
@keyframes screenReveal {
  from { opacity: 0; transform: scale(0.985) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* ════════════════════════════════════
   INTRO SCREEN
   ════════════════════════════════════ */
#screen-intro {
  justify-content: center;
  align-items: center;
  background:
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(74,26,106,0.2) 0%, transparent 70%),
    radial-gradient(ellipse 80% 60% at 50% 20%, rgba(140,14,23,0.12) 0%, transparent 60%),
    radial-gradient(circle at 50% 100%, rgba(10,5,16,1) 0%, var(--void) 50%);
}

.intro-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem 1.5rem 1rem;
  max-width: 700px;
  width: 100%;
}

/* Orbital rings decoration */
.orbital-rings {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  pointer-events: none;
}
.orbital-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid transparent;
}
.ring-1 {
  inset: 10%;
  border-color: rgba(196,20,31,0.06);
  animation: orbitSpin 60s linear infinite;
}
.ring-2 {
  inset: 5%;
  border-color: rgba(74,26,106,0.06);
  animation: orbitSpin 90s linear infinite reverse;
}
.ring-3 {
  inset: 0;
  border-color: rgba(212,149,78,0.04);
  animation: orbitSpin 120s linear infinite;
}
@keyframes orbitSpin {
  to { transform: rotate(360deg); }
}

/* Sigil */
.sigil-container {
  margin-bottom: 0.8rem;
  animation: fadeDown 1s var(--ease-out) 0.2s both;
  filter: drop-shadow(0 0 20px rgba(196,20,31,0.5));
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Main Title */
.title-main {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 10vw, 6rem);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--cream);
  line-height: 1;
  margin-bottom: 0.6rem;
  text-shadow:
    0 0 40px rgba(196,20,31,0.6),
    0 0 100px rgba(196,20,31,0.2),
    0 2px 4px rgba(0,0,0,0.5);
}
.title-letter {
  display: inline-block;
  animation: letterReveal 0.8s var(--ease-out) calc(0.4s + var(--i) * 0.06s) both;
}
@keyframes letterReveal {
  from { opacity: 0; transform: translateY(30px) scale(0.8); filter: blur(4px); }
  to   { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

/* Title rule */
.title-rule {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
  animation: fadeIn 1s var(--ease-out) 1s both;
  width: 60%;
  max-width: 300px;
}
.rule-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--crimson-mid), transparent);
}
.rule-diamond {
  color: var(--crimson);
  font-size: 0.5rem;
  text-shadow: 0 0 8px rgba(196,20,31,0.6);
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.title-sub {
  font-family: var(--font-body);
  font-size: clamp(0.55rem, 1.5vw, 0.72rem);
  letter-spacing: 0.28em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-weight: 500;
  animation: fadeIn 1s var(--ease-out) 1.1s both;
}

.intro-text {
  font-family: var(--font-head);
  font-size: clamp(0.95rem, 2vw, 1.12rem);
  font-weight: 400;
  font-style: italic;
  line-height: 1.9;
  color: var(--body);
  max-width: 540px;
  margin-bottom: 1.4rem;
  animation: fadeIn 1s var(--ease-out) 1.3s both;
}

/* Language toggle */
.lang-toggle-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  animation: fadeIn 0.8s var(--ease-out) 1.5s both;
}
.lang-label {
  font-family: var(--font-body);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  font-weight: 500;
  text-transform: uppercase;
}
.lang-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  padding: 0.35rem 0.9rem;
  cursor: pointer;
  transition: all 0.25s var(--ease-out);
  border-radius: var(--radius);
}
.lang-btn:hover, .lang-btn.active {
  background: var(--crimson-dim);
  border-color: var(--crimson);
  color: var(--cream);
  box-shadow: 0 0 12px rgba(196,20,31,0.3);
}

/* Main menu */
.main-menu {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  width: 100%;
  max-width: 420px;
  animation: fadeIn 0.8s var(--ease-out) 1.6s both;
}

.menu-btn {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  width: 100%;
  background: linear-gradient(135deg, rgba(26,16,36,0.8), rgba(15,8,21,0.9));
  border: 1px solid var(--border);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: clamp(0.68rem, 1.6vw, 0.78rem);
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  padding: 0.9rem 1.2rem;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  text-align: left;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.menu-btn::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--crimson);
  transition: width 0.3s var(--ease-out), box-shadow 0.3s;
  box-shadow: 0 0 8px rgba(196,20,31,0.3);
}
.menu-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(196,20,31,0.08), transparent 50%);
  opacity: 0;
  transition: opacity 0.3s;
}
.menu-btn:hover {
  border-color: var(--border2);
  transform: translateX(4px);
  box-shadow: var(--glow-red);
}
.menu-btn:hover::before { width: 3px; }
.menu-btn:hover::after { opacity: 1; }

.menu-icon-wrap {
  color: var(--crimson);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: color 0.3s;
}
.menu-btn:hover .menu-icon-wrap { color: var(--ember); }
.menu-text { position: relative; z-index: 1; flex: 1; }
.menu-arrow {
  position: relative;
  z-index: 1;
  color: var(--muted);
  font-size: 0.9rem;
  transition: transform 0.3s var(--ease-out), color 0.3s;
}
.menu-btn:hover .menu-arrow { transform: translateX(4px); color: var(--crimson); }

.footer-credit {
  margin-top: 1.6rem;
  font-family: var(--font-body);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--crimson-mid);
  text-transform: uppercase;
  animation: fadeIn 1s var(--ease-out) 2s both;
}

/* ════════════════════════════════════
   SCREEN HEADER (shared)
   ════════════════════════════════════ */
.screen-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 1rem;
  background: linear-gradient(180deg, rgba(10,5,16,0.97) 0%, rgba(10,5,16,0.85) 100%);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: wrap;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.back-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: var(--radius);
}
.back-btn:hover {
  border-color: var(--crimson);
  color: var(--cream);
  box-shadow: 0 0 10px rgba(196,20,31,0.2);
}
.back-btn svg { flex-shrink: 0; }

.screen-title {
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 2.8vw, 1.15rem);
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--cream);
  text-shadow: 0 0 20px rgba(196,20,31,0.3);
  flex: 1;
}

.header-action-btn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.63rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.4rem 0.85rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  border-radius: var(--radius);
}
.header-action-btn:hover { border-color: var(--crimson); color: var(--cream); }

/* ════════════════════════════════════
   DICTIONARY — Responsive & Card-based
   ════════════════════════════════════ */
.dict-filter {
  position: relative;
  display: flex;
  align-items: center;
}
.search-icon {
  position: absolute;
  left: 0.6rem;
  color: var(--muted);
  pointer-events: none;
}
.dict-filter input {
  background: var(--deep);
  border: 1px solid var(--border);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 400;
  padding: 0.4rem 0.7rem 0.4rem 2rem;
  outline: none;
  width: 180px;
  transition: border-color 0.2s, box-shadow 0.2s;
  border-radius: var(--radius);
}
.dict-filter input:focus {
  border-color: var(--crimson);
  box-shadow: 0 0 12px rgba(196,20,31,0.15);
}
.dict-filter input::placeholder { color: var(--muted); font-weight: 400; }

.dict-container {
  flex: 1;
  overflow-y: auto;
  padding: 0 1rem 2rem;
  scrollbar-width: thin;
  scrollbar-color: var(--crimson-mid) var(--abyss);
}

/* Desktop: table layout */
.dict-header-row {
  display: grid;
  grid-template-columns: 180px 90px 1fr 1fr 100px;
  border-bottom: 1px solid var(--crimson-mid);
  padding: 0.7rem 0.5rem 0.5rem;
  position: sticky;
  top: 0;
  background: var(--abyss);
  z-index: 5;
}
.dict-header-row .dict-col {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--crimson);
  text-transform: uppercase;
}

.dict-section-header {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--crimson);
  text-transform: uppercase;
  border-bottom: 1px solid rgba(196,20,31,0.15);
  padding: 0.3rem 0.5rem;
  margin: 1.2rem 0 0.3rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.dict-section-header::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(196,20,31,0.15), transparent);
}

.dict-entry {
  display: grid;
  grid-template-columns: 180px 90px 1fr 1fr 100px;
  border-bottom: 1px solid rgba(45,26,63,0.4);
  transition: all 0.2s;
}
.dict-entry:hover {
  background: rgba(196,20,31,0.04);
  border-bottom-color: rgba(196,20,31,0.12);
}

.dict-col {
  padding: 0.55rem 0.5rem;
  font-size: 0.9rem;
  font-weight: 400;
  line-height: 1.5;
  display: flex;
  align-items: center;
}
.dict-kobaian {
  font-family: var(--font-head);
  font-style: italic;
  color: var(--cream);
  font-size: 1rem;
  font-weight: 600;
}
.dict-pos {
  color: var(--gold);
  font-size: 0.78rem;
  font-style: italic;
  font-family: var(--font-head);
}
.dict-fr, .dict-en { color: var(--body); }
.dict-source {
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 400;
}
.dict-source.official {
  color: var(--gold-dim);
  font-weight: 600;
}

/* ════════════════════════════════════
   SHARED CENTER
   ════════════════════════════════════ */
.center-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  gap: 2rem;
}
.subheading {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ════════════════════════════════════
   PRACTICE
   ════════════════════════════════════ */
.choice-row {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.choice-btn {
  background: linear-gradient(160deg, var(--card2), var(--card));
  border: 1px solid var(--border);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 1.8rem 3rem;
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  min-width: 160px;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.choice-btn::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--crimson), transparent);
}
.choice-btn:hover {
  border-color: var(--border2);
  box-shadow: var(--glow-red);
  transform: translateY(-6px);
}
.choice-flag { font-size: 2.4rem; }

.score-display {
  margin-left: auto;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
}
#score-val {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gold-pale);
  text-shadow: var(--glow-gold);
}

.practice-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  gap: 1.8rem;
  overflow: hidden;
}

.kobaian-word-display {
  text-align: center;
  background: linear-gradient(160deg, var(--card2), var(--abyss));
  border: 1px solid var(--border);
  padding: 2.2rem 3.5rem;
  min-width: 300px;
  border-radius: var(--radius);
  position: relative;
  box-shadow:
    0 10px 50px rgba(0,0,0,0.6),
    inset 0 1px 0 rgba(212,149,78,0.06);
}
.kobaian-word-display::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--crimson), transparent);
}
.word-label {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 0.9rem;
}
.kobaian-word {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.5vw, 3.2rem);
  font-weight: 700;
  color: var(--cream);
  text-shadow:
    0 0 30px rgba(196,20,31,0.5),
    0 0 80px rgba(196,20,31,0.15);
  letter-spacing: 0.08em;
}
.word-pos {
  margin-top: 0.6rem;
  font-family: var(--font-head);
  font-style: italic;
  font-size: 0.92rem;
  font-weight: 400;
  color: var(--gold);
}

.choices-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  width: 100%;
  max-width: 540px;
}
.choice-answer {
  background: linear-gradient(160deg, var(--card2), var(--card));
  border: 1px solid var(--border);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  font-weight: 400;
  padding: 1rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s var(--ease-out);
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.4;
  border-radius: var(--radius);
}
.choice-answer:hover:not(:disabled) {
  border-color: var(--crimson);
  background: var(--crimson-dim);
  box-shadow: 0 0 16px rgba(196,20,31,0.25);
  color: #fff;
}
.choice-answer.correct {
  border-color: #4aba7a;
  background: rgba(74,186,122,0.1);
  color: #8eddb5;
  box-shadow: 0 0 16px rgba(74,186,122,0.2);
}
.choice-answer.wrong {
  border-color: var(--ember);
  background: rgba(196,20,31,0.15);
  color: #ff7070;
  animation: shake 0.38s ease;
}
.choice-answer:disabled { cursor: default; }

@keyframes shake {
  0%,100% { transform: translateX(0); }
  25%,75%  { transform: translateX(-5px); }
  50%      { transform: translateX(5px); }
}

.feedback-msg {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  min-height: 1.5rem;
  text-align: center;
  text-transform: uppercase;
}
.feedback-msg.try-again  { color: var(--ember); }
.feedback-msg.correct-msg { color: #6ed6a0; }

/* ════════════════════════════════════
   PHRASE BUILDER
   ════════════════════════════════════ */
.phrase-layout {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.phrase-display-area {
  background: linear-gradient(180deg, var(--surface) 0%, var(--abyss) 100%);
  border-bottom: 1px solid var(--border);
  padding: 1.1rem 1.2rem 0.8rem;
  flex-shrink: 0;
}

.phrase-display-label {
  font-family: var(--font-body);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--crimson);
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.phrase-tokens {
  min-height: 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: flex-start;
  padding: 0.4rem 0;
}
.phrase-placeholder {
  font-family: var(--font-head);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--muted);
  font-weight: 400;
}
.phrase-token {
  background: rgba(196,20,31,0.08);
  border: 1px solid var(--crimson-mid);
  border-radius: var(--radius);
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  transition: all 0.2s;
}
.phrase-token:hover {
  background: rgba(196,20,31,0.18);
  border-color: var(--crimson);
}
.phrase-token-word {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--cream);
  font-style: italic;
  display: block;
}
.phrase-token-gloss {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--gold);
  display: block;
  line-height: 1.2;
}

.phrase-gloss {
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 400;
  color: var(--muted);
  font-style: italic;
  min-height: 1.3rem;
  margin-top: 0.2rem;
}

.phrase-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.6rem;
}
.phrase-action-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.63rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.38rem 0.8rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  border-radius: var(--radius);
}
.phrase-action-btn:hover { border-color: var(--crimson); color: var(--cream); }

.phrase-copy-confirm {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: #6ed6a0;
  min-height: 1.2rem;
  margin-top: 0.3rem;
}

/* Picker */
.phrase-picker {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.picker-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(15,8,21,0.8);
  flex-shrink: 0;
}
.picker-tab {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.32rem 0.7rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  white-space: nowrap;
  border-radius: var(--radius);
}
.picker-tab:hover { border-color: var(--crimson-mid); color: var(--body); }
.picker-tab.active {
  background: var(--crimson-dim);
  border-color: var(--crimson);
  color: var(--cream);
}

.picker-words {
  flex: 1;
  overflow-y: auto;
  padding: 0.7rem 1rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-content: flex-start;
  scrollbar-width: thin;
  scrollbar-color: var(--crimson-mid) var(--abyss);
}

.picker-word-btn {
  background: rgba(26,16,36,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
}
.picker-word-btn:hover {
  border-color: var(--crimson);
  background: var(--crimson-dim);
}
.picker-word-main {
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--cream);
  font-style: italic;
  display: block;
}
.picker-word-gloss {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--gold);
  display: block;
  line-height: 1.25;
}

/* ════════════════════════════════════
   MYTHOLOGY
   ════════════════════════════════════ */
.myth-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  padding: 0 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(10,5,16,0.9);
  flex-shrink: 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.myth-nav-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.55rem 0.7rem;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  white-space: nowrap;
}
.myth-nav-btn:hover { color: var(--body); border-bottom-color: var(--crimson-mid); }
.myth-nav-btn.active { color: var(--cream); border-bottom-color: var(--crimson); }

.myth-container {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--crimson-mid) var(--abyss);
}

.myth-chapter {
  display: none;
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 2rem 3rem;
  animation: screenReveal 0.4s var(--ease-out);
}
.myth-chapter.active { display: block; }

.myth-chapter-header {
  display: flex;
  align-items: flex-start;
  gap: 1.3rem;
  margin-bottom: 2rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.myth-chapter-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 60px;
  height: 1px;
  background: var(--crimson);
}
.myth-chapter-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 300;
  color: var(--crimson-mid);
  line-height: 1;
  opacity: 0.4;
  flex-shrink: 0;
  text-shadow: 0 0 25px rgba(140,14,23,0.3);
}
.myth-chapter-title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3.2vw, 1.6rem);
  font-weight: 600;
  color: var(--cream);
  line-height: 1.25;
  margin-bottom: 0.25rem;
  text-shadow: 0 0 20px rgba(196,20,31,0.2);
}
.myth-chapter-sub {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--crimson-mid);
  text-transform: uppercase;
}

.myth-body p {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.95;
  color: var(--body);
  margin-bottom: 1.2rem;
}

.myth-body h3 {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--crimson);
  text-transform: uppercase;
  margin: 2rem 0 0.8rem;
}

.myth-body .kobaian-term {
  font-family: var(--font-head);
  font-style: italic;
  color: var(--cream);
  font-weight: 600;
}

.myth-body .kobaian-gloss {
  font-size: 0.85rem;
  color: var(--gold);
  font-weight: 400;
}

.myth-figure {
  background: linear-gradient(160deg, rgba(26,16,36,0.6), rgba(15,8,21,0.8));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.4rem;
  margin: 1.4rem 0;
  position: relative;
  overflow: hidden;
}
.myth-figure::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--crimson);
}
.myth-figure-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 0.3rem;
}
.myth-figure-role {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.myth-figure-desc {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--body);
}

.myth-quote {
  border-left: 2px solid var(--crimson-mid);
  padding: 0.7rem 1.2rem;
  margin: 1.2rem 0;
  font-family: var(--font-head);
  font-style: italic;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}
.myth-quote cite {
  display: block;
  margin-top: 0.4rem;
  font-style: normal;
  font-size: 0.68rem;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--crimson-mid);
  text-transform: uppercase;
}

/* ════════════════════════════════════
   TOOLTIP
   ════════════════════════════════════ */
.tooltip {
  position: fixed;
  z-index: 9999;
  background: var(--card2);
  border: 1px solid var(--crimson);
  box-shadow: var(--glow-red), 0 8px 32px rgba(0,0,0,0.6);
  padding: 0.65rem 0.95rem;
  max-width: 260px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.tooltip.visible { opacity: 1; }
.tooltip-word {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--crimson-hot);
  font-style: italic;
  margin-bottom: 0.15rem;
}
.tooltip-pos  { color: var(--gold); font-size: 0.78rem; font-style: italic; font-family: var(--font-head); margin-bottom: 0.25rem; }
.tooltip-en   { color: var(--cream); font-size: 0.88rem; font-weight: 400; font-family: var(--font-body); }
.tooltip-fr   { color: var(--muted); font-size: 0.84rem; font-family: var(--font-body); }

/* ════════════════════════════════════
   SCROLLBAR
   ════════════════════════════════════ */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--abyss); }
::-webkit-scrollbar-thumb { background: var(--crimson-mid); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--crimson); }

/* ════════════════════════════════════
   MOBILE RESPONSIVE
   ════════════════════════════════════ */
@media (max-width: 720px) {
  /* Dictionary: switch to card layout */
  .dict-header-row { display: none; }

  .dict-entry {
    display: flex;
    flex-direction: column;
    grid-template-columns: none;
    padding: 0.8rem 0.6rem;
    gap: 0.25rem;
    border-bottom: 1px solid rgba(45,26,63,0.3);
    position: relative;
  }
  .dict-entry:hover {
    background: rgba(196,20,31,0.04);
  }

  .dict-entry .dict-col {
    padding: 0;
    display: flex;
    align-items: baseline;
  }

  .dict-entry .dict-kobaian {
    font-size: 1.05rem;
    margin-bottom: 0.1rem;
  }
  .dict-entry .dict-pos {
    font-size: 0.72rem;
    display: inline;
  }
  .dict-entry .dict-en {
    font-size: 0.88rem;
    color: var(--body);
  }
  .dict-entry .dict-fr {
    font-size: 0.82rem;
    color: var(--muted);
    display: flex;
  }
  .dict-entry .dict-fr::before {
    content: 'FR ';
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--muted);
    margin-right: 0.4rem;
    opacity: 0.6;
  }
  .dict-entry .dict-en::before {
    content: 'EN ';
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--muted);
    margin-right: 0.4rem;
    opacity: 0.6;
  }
  .dict-entry .dict-source {
    font-size: 0.6rem;
    display: flex;
    opacity: 0.7;
  }

  .dict-section-header {
    margin-top: 0.8rem;
  }

  .dict-filter input {
    width: 140px;
    font-size: 0.82rem;
  }

  /* Practice */
  .choices-grid { grid-template-columns: 1fr; }
  .kobaian-word-display {
    padding: 1.5rem 1.2rem;
    min-width: auto;
    width: 100%;
    max-width: 340px;
  }
  .practice-container { gap: 1.2rem; padding: 1rem; }

  /* Phrase */
  .phrase-layout { gap: 0; }

  /* Mythology */
  .myth-chapter { padding: 1.5rem 1rem 2rem; }
  .myth-chapter-num { font-size: 2.2rem; }
  .myth-chapter-header { gap: 0.8rem; }

  /* Menu */
  .orbital-rings { width: 350px; height: 350px; }
  .menu-btn { padding: 0.8rem 1rem; }

  /* Intro */
  .intro-inner { padding: 1rem; }

  .screen-header {
    padding: 0.6rem 0.8rem;
    gap: 0.5rem;
  }
}

@media (max-width: 420px) {
  .title-main { letter-spacing: 0.12em; }
  .title-sub { font-size: 0.48rem; letter-spacing: 0.18em; }
  .myth-nav-btn { font-size: 0.52rem; padding: 0.45rem 0.5rem; }
  .picker-tab { font-size: 0.55rem; padding: 0.3rem 0.5rem; }
  .choice-btn { padding: 1.4rem 2rem; min-width: 130px; }
}