:root{
  --ink:#2A1F16;
  --ink-soft:#8C7C6A;
  --paper:#FFF9EF;
  --panel:#FBEEDA;
  --panel-line:#EAD7B0;
  --amber:#E2820A;
  --amber-deep:#A85E09;
  --rust:#C1481D;
  --amber-tint:#FBE6BE;
  --white:#FFFFFF;
  --shadow: 0 2px 10px rgba(42,31,22,0.08);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'Zen Kaku Gothic New', sans-serif;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.display{
  font-family:'Zen Old Mincho', serif;
  font-weight:500;
  letter-spacing:0.01em;
}
#app{
  max-width:520px;
  margin:0 auto;
  min-height:100vh;
  background:var(--paper);
  position:relative;
  padding-bottom:40px;
}
.screen{ display:none; padding:28px 22px 10px; animation:fadeIn .35s ease; }
.screen.active{ display:block; }
@keyframes fadeIn{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);} }

/* ---------- top bar ---------- */
.topbar{
  display:grid; grid-template-columns: 1fr auto 1fr; align-items:center; gap:8px;
  margin-bottom:22px;
}
.topbar > *:nth-child(1){ justify-self:start; }
.topbar > *:nth-child(2){ justify-self:center; }
.topbar > *:nth-child(3){ justify-self:end; }
.topbar > [data-nav="screen-home"]:only-child{ justify-self:center; }
.back-btn{
  background:none; border:none; color:var(--ink-soft); font-size:15px;
  cursor:pointer; padding:6px 0; font-family:'Zen Kaku Gothic New',sans-serif;
  display:flex; align-items:center; gap:4px;
}
.back-btn:hover{ color:var(--amber-deep); }
.icon-btn{
  width:38px; height:38px; border-radius:50%; flex-shrink:0; padding:0;
  display:flex; align-items:center; justify-content:center;
  background:var(--white); border:1px solid var(--panel-line); color:var(--ink-soft);
  cursor:pointer; transition:background .15s ease, color .15s ease, border-color .15s ease;
}
.icon-btn svg{ width:18px; height:18px; }
.icon-btn:hover{ background:var(--amber-tint); color:var(--amber-deep); border-color:var(--amber-deep); }
.topbar-title{
  font-size:12px; font-weight:700; color:var(--amber-deep); text-transform:uppercase;
  letter-spacing:.08em; text-align:center; padding:0 8px;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
}
.journal-link{
  background:none;border:none;color:var(--amber-deep);font-size:14px;
  cursor:pointer;font-family:'Zen Kaku Gothic New',sans-serif;font-weight:600;
}

/* ---------- home ---------- */
.home-greeting{ color:var(--ink-soft); font-size:15px; margin-bottom:2px; }
.home-title{ font-size:30px; line-height:1.25; margin:0 0 26px; }
.stats-row{ display:flex; gap:10px; margin-bottom:18px; }
.stat-chip{
  flex:1; display:flex; align-items:center; gap:10px; background:var(--white);
  border:1px solid var(--panel-line); border-radius:14px; padding:12px 14px;
}
.stat-icon{ width:20px; height:20px; color:var(--amber-deep); flex-shrink:0; }
.stat-value{ font-size:17px; font-weight:700; line-height:1.2; }
.stat-label{ font-size:11.5px; color:var(--ink-soft); }

.journey-map{ display:flex; align-items:center; margin-bottom:20px; }
.map-dot{
  width:30px; height:30px; border-radius:50%; flex-shrink:0; padding:0;
  display:flex; align-items:center; justify-content:center;
  font-size:12.5px; font-weight:700; color:var(--ink-soft);
  font-family:'Zen Kaku Gothic New',sans-serif; cursor:pointer;
  background:var(--white); border:2px solid var(--panel-line);
}
.map-dot.current{ border-color:var(--amber); color:var(--amber-deep); background:var(--amber-tint); }
.map-dot.done{ border-color:var(--amber); background:var(--amber); color:var(--ink); }
.map-dot svg{ width:13px; height:13px; }
.map-line{ flex:1; height:2px; background:var(--panel-line); margin:0 4px; }
.map-line.done{ background:var(--amber); }

.celebration-wrap{
  position:relative; display:flex; flex-direction:column; align-items:center;
  padding-top:8px; margin-bottom:6px;
}
.celebration-badge{
  position:relative; width:96px; height:96px; border-radius:50%; flex-shrink:0;
  background:radial-gradient(circle at 32% 28%, var(--amber-deep), var(--amber) 72%);
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 26px rgba(226,130,10,0.38);
  animation:badge-pop 0.65s cubic-bezier(.34,1.56,.64,1) both;
}
.celebration-badge.trophy{ width:112px; height:112px; }
.celebration-badge svg{ width:46px; height:46px; color:var(--white); }
.celebration-badge.trophy svg{ width:52px; height:52px; }
@keyframes badge-pop{
  0%{ transform:scale(0.3); opacity:0; }
  60%{ transform:scale(1.12); opacity:1; }
  100%{ transform:scale(1); opacity:1; }
}
.confetti-piece{
  position:absolute; top:50%; left:50%; width:8px; height:8px; border-radius:2px;
  opacity:0; animation:confetti-fly 1.1s ease-out forwards;
}
@keyframes confetti-fly{
  0%{ transform:translate(-50%,-50%) rotate(0deg) scale(0.4); opacity:0; }
  25%{ opacity:1; }
  100%{ transform:translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) rotate(var(--rot)) scale(1); opacity:0; }
}
.celebration-eyebrow{
  text-transform:uppercase; letter-spacing:0.14em; font-size:12px; font-weight:700;
  color:var(--amber-deep); margin:18px 0 6px; text-align:center;
}
.celebration-title{
  font-size:26px; font-weight:900; text-align:center; margin:0 0 8px;
}
.celebration-subtitle{
  font-size:15px; color:var(--ink-soft); text-align:center; margin:0 0 4px; line-height:1.6;
}
.secondary-link-row{ text-align:center; margin-top:6px; }
.secondary-link-row .back-btn{ display:inline-flex; margin:0; }

.quick-links-row{ display:flex; gap:10px; margin-top:6px; }
.quick-link{
  flex:1; display:flex; flex-direction:column; align-items:center; gap:6px;
  background:transparent; border:1px solid var(--panel-line); border-radius:14px;
  padding:12px 8px; font-size:12px; color:var(--ink-soft); cursor:pointer;
  font-family:'Zen Kaku Gothic New',sans-serif;
}
.quick-link:hover{ background:var(--panel); }
.quick-link svg{ width:20px; height:20px; color:var(--amber-deep); }
.today-card{
  background:var(--white); border:1px solid var(--panel-line); border-radius:18px;
  padding:22px; box-shadow:var(--shadow); margin-bottom:18px;
}
.eyebrow{
  text-transform:uppercase; letter-spacing:0.14em; font-size:11px;
  color:var(--amber-deep); font-weight:700; margin-bottom:8px;
}
.today-stage{ font-size:22px; margin:0 0 6px; }
.today-theme{ color:var(--ink-soft); font-size:14.5px; margin:0 0 18px; }
.progress-track{
  height:6px; background:var(--panel); border-radius:6px; overflow:hidden; margin-bottom:8px;
}
.progress-fill{ height:100%; background:var(--amber); border-radius:6px; transition:width .4s ease; }
.progress-label{ font-size:12.5px; color:var(--ink-soft); }
.btn-primary{
  width:100%; background:var(--amber); color:var(--ink); border:none; border-radius:14px;
  padding:16px; font-size:16px; font-weight:600; font-family:'Zen Kaku Gothic New',sans-serif; cursor:pointer;
  margin-top:14px; transition:background .2s ease, color .2s ease, transform .1s ease;
}
.btn-primary:hover{ background:var(--amber-deep); color:var(--white); }
.btn-primary:active{ transform:scale(0.98); }
.btn-secondary{
  width:100%; background:transparent; color:var(--amber-deep); border:1.5px solid var(--amber-deep);
  border-radius:14px; padding:14px; font-size:15px; font-weight:600; font-family:'Zen Kaku Gothic New',sans-serif;
  cursor:pointer; margin-top:10px;
}

/* ---------- lesson list ---------- */
.pattern-group{
  background:var(--white); border:1px solid var(--panel-line); border-radius:16px;
  margin-bottom:14px; overflow:hidden; box-shadow:var(--shadow);
}
.pattern-group-header{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:14px 16px; background:var(--panel); border-bottom:1px solid var(--panel-line);
}
.pattern-group-title{ font-size:14.5px; font-weight:700; color:var(--ink); }
.pattern-group-jp{ font-size:12px; color:var(--ink-soft); margin-top:1px; }
.pattern-group-count{
  font-size:12px; font-weight:700; color:var(--amber-deep); background:var(--amber-tint);
  border-radius:20px; padding:3px 10px; flex-shrink:0;
}
.lesson-row{
  display:flex; align-items:center; gap:14px; padding:14px 16px; border-bottom:1px solid var(--panel-line);
  cursor:pointer; transition:background .15s ease;
}
.lesson-row:hover{ background:var(--panel); }
.lesson-row:last-child{ border-bottom:none; }
.lesson-check{
  width:24px; height:24px; border-radius:50%; border:1.5px solid var(--panel-line); flex-shrink:0;
  display:flex; align-items:center; justify-content:center; font-size:12px; color:var(--white);
}
.lesson-check.done{ background:var(--amber); border-color:var(--amber); color:var(--ink); }
.lesson-sentence{ font-size:14.5px; flex:1; }
.review-label{ font-size:12px; color:var(--amber-deep); font-weight:600; flex-shrink:0; margin-left:auto; padding-left:10px; }

/* ---------- lesson flow ---------- */
.lesson-step{ display:flex; flex-direction:column; min-height:min(58vh, 480px); }
.lesson-step > .nav-row{ margin-top:auto; padding-top:20px; }
.step-dots{ display:flex; gap:6px; margin-bottom:22px; }
.step-dot{ height:4px; flex:1; background:var(--panel-line); border-radius:4px; }
.step-dot.active{ background:var(--amber); }
.step-dot.filled{ background:var(--panel-line); background:var(--amber-tint); }

.orb-wrap{ display:flex; justify-content:center; margin:34px 0 28px; }
.orb{
  width:120px; height:120px; border-radius:50%;
  background: radial-gradient(circle at 35% 30%, #F5B84A, var(--amber-deep));
  display:flex; align-items:center; justify-content:center; cursor:pointer;
  box-shadow:0 0 0 0 rgba(226,130,10,0.35);
  transition: box-shadow .3s ease;
}
.orb.playing{ animation: pulse 1.4s ease-out infinite; }
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(226,130,10,0.45); }
  70%{ box-shadow:0 0 0 26px rgba(226,130,10,0); }
  100%{ box-shadow:0 0 0 0 rgba(226,130,10,0); }
}
.orb svg{ width:38px; height:38px; fill:var(--ink); }

.prompt-text{ text-align:center; color:var(--ink-soft); font-size:14.5px; margin-bottom:6px; }

.sentence-card{
  background:var(--white); border:1px solid var(--panel-line); border-radius:16px;
  padding:26px 22px; text-align:center; margin:18px 0; box-shadow:var(--shadow);
  min-height:88px; display:flex; flex-direction:column; justify-content:center; gap:8px;
}
.sentence-en{ font-size:20px; line-height:1.4; }
.sentence-hidden{ filter:blur(9px); user-select:none; }
.sentence-jp{ font-size:14.5px; color:var(--ink-soft); }
#l7-japanese{ font-size:20px; color:var(--ink); line-height:1.4; }
.pattern-highlight{ color:var(--rust); font-weight:700; }

.tip-accordion{ margin-top:10px; }
.tip-toggle{
  width:100%; display:flex; align-items:center; justify-content:space-between;
  background:none; border:none; border-top:1px solid var(--panel-line);
  padding:12px 2px; font-size:13.5px; font-weight:600; color:var(--ink-soft);
  font-family:'Zen Kaku Gothic New',sans-serif; cursor:pointer;
}
.tip-toggle-label{ display:flex; flex-direction:column; align-items:flex-start; gap:2px; }
.tip-toggle-title{ font-weight:600; }
.tip-toggle-hint{ font-size:11.5px; font-weight:400; color:var(--ink-soft); opacity:0.75; }
.tip-chevron{ width:16px; height:16px; transition:transform .2s ease; }
.tip-toggle.open .tip-chevron{ transform:rotate(90deg); }
.tip-content{
  font-size:15px; font-weight:500; color:var(--ink); line-height:1.6; padding:0 2px 12px;
}
.tip-bullets{ margin:0; padding-left:18px; }
.tip-bullets li{ margin-bottom:8px; }
.tip-bullets li:last-child{ margin-bottom:0; }
.tip-label{
  display:inline-block; background:var(--amber-tint); color:var(--amber-deep);
  font-size:12px; font-weight:700; border-radius:6px; padding:1px 7px;
  margin-right:6px; white-space:nowrap;
}

.explain-box{
  background:var(--amber-tint); border-radius:14px; padding:16px 18px; font-size:14.5px;
  line-height:1.55; margin:14px 0;
}
.words-row{ display:flex; flex-wrap:wrap; gap:8px; margin:14px 0; }
.word-chip{
  background:var(--panel); border:1px solid var(--panel-line); border-radius:20px;
  padding:7px 14px; font-size:13.5px; cursor:pointer;
}
.word-chip:hover{ background:var(--amber-tint); border-color:var(--rust); }

.mic-btn{
  display:flex; align-items:center; justify-content:center; gap:10px;
  width:100%; background:var(--white); border:1.5px solid var(--amber-deep); color:var(--amber-deep);
  border-radius:14px; padding:15px; font-size:15px; font-weight:600; cursor:pointer;
  font-family:'Zen Kaku Gothic New',sans-serif; margin-top:10px;
}
.mic-btn.listening{ background:var(--amber-deep); color:var(--white); }
.mic-result{ text-align:center; font-size:13.5px; color:var(--ink-soft); margin-top:10px; min-height:18px; }
.recall-feedback{ font-size:17px; font-weight:700; margin-bottom:6px; }
.recall-feedback.correct{ color:var(--amber-deep); }
.recall-feedback.close{ color:var(--ink-soft); }
.recall-heard{ font-size:13px; color:var(--ink-soft); margin-bottom:6px; }
.recall-answer{ font-size:13.5px; color:var(--ink); font-weight:600; }

.hint-line{ font-size:13px; color:var(--ink-soft); text-align:center; margin:0 0 10px; font-style:italic; }
.pattern-card{
  background:var(--panel); border:1px solid var(--panel-line); border-radius:16px;
  padding:18px 16px; text-align:center; margin-bottom:16px;
}
.pattern-card .pattern-label{
  font-size:10.5px; text-transform:uppercase; letter-spacing:.12em; color:var(--amber-deep);
  font-weight:700; margin-bottom:6px;
}
.pattern-card .pattern-text{ font-size:19px; font-weight:600; }
.miy-eyebrow{
  text-align:center; font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.1em;
  color:var(--amber-deep); margin-bottom:8px;
}
.choice-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:10px; margin:16px 0;
}
.choice-chip{
  display:flex; flex-direction:column; align-items:center; gap:4px;
  background:var(--panel); border:1.5px solid var(--panel-line); border-radius:14px;
  padding:14px 8px; cursor:pointer; font-family:'Zen Kaku Gothic New',sans-serif;
  transition:border-color .15s ease, background .15s ease;
}
.choice-chip .choice-jp{ font-size:14.5px; font-weight:600; color:var(--ink); text-align:center; }
.choice-chip .choice-en{ font-size:11px; color:var(--ink-soft); }
.choice-chip:hover{ border-color:var(--rust); }
.choice-chip.selected{ background:var(--amber-tint); border-color:var(--amber-deep); }
.choice-chip.selected .choice-jp{ color:var(--amber-deep); }

.compare-btn{ display:flex; align-items:center; justify-content:center; gap:8px; }

.nav-row{ display:flex; gap:10px; margin-top:20px; }
.nav-row .btn-primary{ margin-top:0; }
.btn-ghost{
  background:none; border:none; color:var(--ink-soft); font-size:14px; cursor:pointer;
  font-family:'Zen Kaku Gothic New',sans-serif; padding:14px; flex-shrink:0;
}

/* ---------- journal ---------- */
.journal-entry{
  background:var(--white); border:1px solid var(--panel-line); border-radius:14px;
  padding:16px 18px; margin-bottom:12px; box-shadow:var(--shadow);
}
.journal-date{ font-size:12px; color:var(--ink-soft); margin-bottom:6px; }
.journal-sentence{ font-size:16px; margin-bottom:4px; }
.journal-japanese{ font-size:13px; color:var(--ink-soft); margin-bottom:6px; }
.journal-pattern{ font-size:12px; color:var(--amber-deep); font-weight:700; }
.empty-state{ text-align:center; color:var(--ink-soft); font-size:14.5px; padding:60px 20px; line-height:1.6; }

.support-note{
  font-size:12.5px; color:var(--ink-soft); text-align:center; margin-top:22px; line-height:1.5;
}