:root{
  --blue:#1f4fa3;--blue-2:#3b6fd1;--red:#d43a2f;--gold:#e7a81c;--teal:#0f8b7d;--violet:#6a4bc4;
  --bg:#fbf7f0;--card:#ffffff;--ink:#1d1b2e;--muted:#6b6880;--line:#ece6da;--soft:#f4efe5;
  --ok:#14915f;--bad:#d43a2f;--shadow:0 2px 10px rgba(29,27,46,.06);
  --radius:16px;--tab-h:64px;
  --safe-b:env(safe-area-inset-bottom,0px);--safe-t:env(safe-area-inset-top,0px);
}
body.dark{
  --bg:#13121c;--card:#1d1c2a;--ink:#f1eff8;--muted:#a19eb5;--line:#2c2a3d;--soft:#252436;
  --shadow:0 2px 10px rgba(0,0,0,.3);--blue:#5b8ae6;--blue-2:#7aa2f0;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.45;overscroll-behavior-y:none}
h1,h2,h3,.serif{font-family:Fraunces,Georgia,serif;font-weight:700;line-height:1.15}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:var(--ink);background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;width:100%}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--blue)}
a{color:var(--blue)}
.hidden{display:none!important}

#app{max-width:560px;margin:0 auto;min-height:100%;padding:calc(14px + var(--safe-t)) 16px calc(var(--tab-h) + 28px + var(--safe-b))}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.topbar h1{font-size:26px}
.back{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--blue);padding:8px 0}
.sub{color:var(--muted);font-size:14px}
.row{display:flex;gap:10px;align-items:center}
.row.wrap{flex-wrap:wrap}
.between{justify-content:space-between}
.grow{flex:1}
.mt{margin-top:14px}.mt2{margin-top:24px}.mb{margin-bottom:12px}
.center{text-align:center}

/* tabs */
.tabs{position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--card);border-top:1px solid var(--line);padding-bottom:var(--safe-b)}
.tabs-in{max-width:560px;margin:0 auto;display:flex;height:var(--tab-h)}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--muted);font-weight:600}
.tab b{font-size:21px;line-height:1;filter:grayscale(.6);opacity:.8}
.tab.on{color:var(--blue)}
.tab.on b{filter:none;opacity:1}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.card+.card{margin-top:12px}
.card h3{font-size:18px;margin-bottom:4px}
.list>*+*{margin-top:10px}
.hero{background:var(--blue);color:#fff;border-radius:22px;padding:20px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;left:-30px;top:-20px;width:120px;height:170px;background:var(--red);clip-path:polygon(0 0,100% 50%,0 100%);opacity:.9}
.hero>*{position:relative;z-index:1;padding-left:64px}
.hero .star{position:absolute;left:10px;top:52px;font-size:26px;padding:0}
.hero h2{font-size:24px}
.hero .chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.chip{display:inline-flex;align-items:center;gap:4px;padding:5px 11px;border-radius:99px;font-size:13px;font-weight:600;background:var(--soft);color:var(--ink);white-space:nowrap}
.hero .chip{background:rgba(255,255,255,.18);color:#fff}
.chip.sel{background:var(--blue);color:#fff}
.chips-scroll{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
.chips-scroll::-webkit-scrollbar{display:none}
.badge{display:inline-block;font-size:11.5px;font-weight:700;padding:2px 8px;border-radius:99px;background:var(--soft);color:var(--muted)}
.badge.m{background:#fde6e3;color:#a1281f}.badge.d{background:#e3ecfb;color:#1f4fa3}.badge.b{background:#e1f3f0;color:#0a6b60}
body.dark .badge.m{background:#3d2220;color:#ffb3aa}body.dark .badge.d{background:#1f2a44;color:#a9c3f5}body.dark .badge.b{background:#173330;color:#8fe0d4}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:12px 18px;border-radius:14px;font-weight:700;background:var(--blue);color:#fff;width:100%;transition:transform .08s}
.btn:active{transform:scale(.98)}
.btn.red{background:var(--red)}.btn.ok{background:var(--ok)}
.btn.ghost{background:var(--soft);color:var(--ink)}
.btn.line{background:transparent;border:1.5px solid var(--line);color:var(--ink)}
.btn.sm{min-height:38px;padding:8px 12px;font-size:14px;border-radius:11px;width:auto}
.btn[disabled]{opacity:.45;pointer-events:none}
.icon-btn{width:42px;height:42px;border-radius:12px;background:var(--soft);display:inline-grid;place-items:center;font-size:18px;flex:none}
.icon-btn.sm{width:34px;height:34px;font-size:15px;border-radius:10px}
.btns{display:flex;gap:10px}
.btns>*{flex:1}

/* today */
.ring{width:64px;height:64px;flex:none}
.day-card{display:flex;gap:12px;align-items:center}
.day-emoji{width:48px;height:48px;border-radius:14px;background:var(--soft);display:grid;place-items:center;font-size:24px;flex:none}
.steps-mini{display:flex;gap:4px;margin-top:8px}
.steps-mini i{flex:1;height:5px;border-radius:9px;background:var(--line)}
.steps-mini i.done{background:var(--teal)}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:12px;text-align:center}
.stat b{display:block;font-family:Fraunces,serif;font-size:24px}
.stat span{font-size:12px;color:var(--muted)}

/* path */
.week-h{display:flex;align-items:center;gap:10px;margin:22px 0 10px}
.week-h .dot{width:10px;height:10px;border-radius:50%}
.path-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:14px;background:var(--card);border:1px solid var(--line)}
.path-item+.path-item{margin-top:8px}
.path-item.locked{opacity:.5}
.path-item.current{border-color:var(--blue);box-shadow:0 0 0 2px rgba(31,79,163,.15)}
.path-item .n{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:800;background:var(--soft);flex:none}
.path-item.done .n{background:var(--teal);color:#fff}

/* session */
.progress{height:8px;background:var(--line);border-radius:99px;overflow:hidden}
.progress i{display:block;height:100%;background:var(--teal);border-radius:99px;transition:width .3s}
.step-label{font-size:13px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.phrase-big{font-family:Fraunces,Georgia,serif;font-size:28px;line-height:1.2;font-weight:700}
.phrase-en{font-size:17px;color:var(--muted);margin-top:6px}
.why{background:var(--soft);border-radius:12px;padding:12px;font-size:14.5px;margin-top:12px}
.why b{color:var(--blue)}
.kv{font-size:14px;margin-top:8px;color:var(--muted)}
.kv b{color:var(--ink)}
.say{display:inline-block;margin-top:8px;font-size:14px;background:#fdf1d6;color:#7a5600;padding:4px 10px;border-radius:9px}
body.dark .say{background:#3a3020;color:#f2d38d}
.audio-row{display:flex;gap:8px;margin-top:14px}
.flash{min-height:220px;display:flex;flex-direction:column;justify-content:center}
.grade{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px}
.grade button{border-radius:12px;padding:10px 4px;font-weight:700;font-size:13px;background:var(--soft)}
.grade .g0{color:var(--bad)}.grade .g3{color:var(--gold)}.grade .g4{color:var(--teal)}.grade .g5{color:var(--blue)}

/* quiz */
.q-prompt{font-family:Fraunces,serif;font-size:24px;font-weight:700;margin:6px 0 16px}
.opt{display:block;width:100%;text-align:left;padding:14px 16px;border-radius:14px;background:var(--card);border:1.5px solid var(--line);font-weight:600;font-size:16px}
.opt+.opt{margin-top:8px}
.opt.right{border-color:var(--ok);background:rgba(20,145,95,.1)}
.opt.wrong{border-color:var(--bad);background:rgba(212,58,47,.08)}
.feedback{margin-top:12px;padding:12px;border-radius:12px;font-size:14.5px;font-weight:600}
.feedback.ok{background:rgba(20,145,95,.12);color:var(--ok)}
.feedback.bad{background:rgba(212,58,47,.1);color:var(--bad)}
.match{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.match button{padding:12px;border-radius:12px;border:1.5px solid var(--line);background:var(--card);font-weight:600;font-size:14px;min-height:56px}
.match button.pick{border-color:var(--blue);background:rgba(31,79,163,.08)}
.match button.gone{opacity:.25;pointer-events:none;border-color:var(--ok)}
.match button.err{border-color:var(--bad)}
.bubble{max-width:85%;padding:12px 14px;border-radius:18px;font-size:16px;margin-top:10px}
.bubble.npc{background:var(--soft);border-bottom-left-radius:6px}
.bubble.me{background:var(--blue);color:#fff;margin-left:auto;border-bottom-right-radius:6px}
.bubble small{display:block;opacity:.7;font-size:13px;margin-top:4px}
.score-big{font-family:Fraunces,serif;font-size:56px;font-weight:800;color:var(--blue)}

/* phrases list */
.ph{padding:14px;border-radius:14px;background:var(--card);border:1px solid var(--line)}
.ph+.ph{margin-top:8px}
.ph .es{font-weight:700;font-size:16.5px}
.ph .en{color:var(--muted);font-size:14px}
.ph .more{margin-top:10px}
.subtabs{display:flex;gap:6px;overflow-x:auto;margin-bottom:14px;scrollbar-width:none}
.subtabs::-webkit-scrollbar{display:none}
.subtabs button{padding:9px 13px;border-radius:12px;background:var(--soft);font-weight:700;font-size:14px;white-space:nowrap}
.subtabs button.on{background:var(--ink);color:var(--bg)}
.search{margin-bottom:10px}
.rule-pat{font-family:ui-monospace,Menlo,monospace;font-weight:800;color:var(--violet)}
body.dark .rule-pat{color:#b39cff}
.ex-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:10px}
.ex-grid button{padding:10px;border-radius:10px;background:var(--soft);text-align:left;font-size:14px}
.ex-grid button .s{display:block;font-weight:700;color:var(--blue)}
.warn{background:#fff3f1;border:1px solid #f4cbc5;color:#8d2219;border-radius:12px;padding:12px;font-size:14px}
body.dark .warn{background:#3a1f1d;border-color:#5e2c28;color:#ffc2bb}
.info{background:#eef4ff;border:1px solid #c9d8f5;color:#1a3f86;border-radius:12px;padding:12px;font-size:14px}
body.dark .info{background:#1c2640;border-color:#2c3d66;color:#bcd0fa}

/* guide */
.sent{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-top:1px dashed var(--line)}
.sent:first-child{border-top:0}
.sent .t{flex:1}
.sent .t b{font-weight:600;font-size:16.5px}
.sent .t small{display:block;color:var(--muted);font-size:14px;margin-top:2px}
.sent.playing .t b{color:var(--blue)}
.tile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tile{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;text-align:left}
.tile .e{font-size:26px}
.tile b{display:block;margin-top:6px}
.tile small{color:var(--muted)}
.show-them{position:fixed;inset:0;z-index:100;background:var(--blue);color:#fff;display:flex;flex-direction:column;padding:calc(20px + var(--safe-t)) 22px calc(20px + var(--safe-b))}
.show-them .txt{flex:1;display:flex;align-items:center;justify-content:center;text-align:center;font-family:Fraunces,serif;font-size:clamp(28px,8vw,46px);font-weight:700;line-height:1.2}
.show-them .ctl{display:flex;gap:10px}
.show-them .ctl button{flex:1;background:rgba(255,255,255,.18);color:#fff;border-radius:14px;padding:14px;font-weight:700}

/* forms / settings */
label.f{display:block;font-weight:700;font-size:14px;margin:14px 0 6px}
.toggle{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-top:1px solid var(--line)}
.toggle:first-child{border-top:0}
.switch{position:relative;width:50px;height:30px;flex:none}
.switch input{opacity:0;width:0;height:0}
.switch span{position:absolute;inset:0;background:var(--line);border-radius:99px;transition:.2s}
.switch span:before{content:"";position:absolute;width:24px;height:24px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch input:checked+span{background:var(--teal)}
.switch input:checked+span:before{transform:translateX(20px)}
.opt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.opt-grid button,.check{padding:14px 8px;border-radius:14px;border:1.5px solid var(--line);background:var(--card);font-weight:700;text-align:center}
.opt-grid button.sel,.check.sel{border-color:var(--blue);background:rgba(31,79,163,.08);color:var(--blue)}
.check{display:flex;align-items:center;gap:10px;text-align:left;width:100%;padding:14px}
.check+.check{margin-top:8px}
.ob{min-height:calc(100vh - 140px);display:flex;flex-direction:column}
.ob .body{flex:1}
.ob h2{font-size:28px;margin:10px 0 8px}
.dots{display:flex;gap:6px;justify-content:center;margin:16px 0}
.dots i{width:8px;height:8px;border-radius:50%;background:var(--line)}
.dots i.on{background:var(--blue);width:22px;border-radius:9px}
.sched{display:flex;justify-content:space-between;padding:9px 0;border-top:1px dashed var(--line);font-size:14px}
.sched:first-child{border-top:0}
.sched.today{font-weight:800;color:var(--blue)}
textarea{min-height:120px;font-family:ui-monospace,monospace;font-size:12px}
.toast{position:fixed;left:50%;bottom:calc(var(--tab-h) + 20px + var(--safe-b));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:12px 18px;border-radius:14px;font-weight:600;font-size:14px;z-index:200;max-width:90vw;box-shadow:0 6px 20px rgba(0,0,0,.2)}
.cert{border:3px double var(--gold);background:var(--card);border-radius:20px;padding:26px;text-align:center}
.cert h2{font-size:30px;color:var(--blue)}
@media (min-width:700px){.phrase-big{font-size:32px}}