/* Giao diện app học: dùng đúng màu và font của website Mini HomeSpa cùng Vân */
:root{
  --bg:#FBF9F6;--cream:#F5F1EA;--cream-deep:#E4DFD6;--purple-deep:#5B3874;--heading-ink:#2C1B3D;--purple-darkest:#3A2350;
  --purple:#CA9FDD;--purple-mid:#B98FCB;--purple-strong:#9A65B8;--gold:#D9B65C;--ink:#382C42;--ink-soft:#675C72;
  --line:rgba(154,101,184,.2);--ok:#2f7d4f;--ok-bg:#e6f4ea;--no:#b3402f;--no-bg:#fbe9e5;
  --serif:'Playfair Display',serif;--sans:'Be Vietnam Pro',sans-serif;
}
*{box-sizing:border-box}
html{font-size:17px}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--serif);color:var(--heading-ink);line-height:1.25;margin:0}
.q-header{background:var(--purple-deep);color:var(--cream)}
.q-header .in{max-width:880px;margin:0 auto;padding:12px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.q-logo{font-family:var(--serif);font-weight:600;font-size:1.05rem;color:var(--cream);text-decoration:none}
.q-logo span{color:var(--gold);font-style:italic}
.q-header a.q-site{color:var(--cream);font-size:.85rem;opacity:.9;text-decoration:none;border:1px solid rgba(245,241,234,.4);padding:6px 14px;border-radius:99px}
.q-header a.q-site:hover{background:rgba(255,255,255,.12)}
main#app{max-width:880px;margin:0 auto;padding:22px 18px 110px}
.eyebrow{font-size:.75rem;letter-spacing:.18em;text-transform:uppercase;color:var(--purple-strong);font-weight:600;margin:0 0 6px}
.hero-mini h1{font-size:2rem}
.lead{color:var(--ink-soft);margin:8px 0 0}
.statbar{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:20px 0}
.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px 6px;text-align:center;font:inherit;color:inherit}
.stat b{display:block;font-family:var(--serif);font-size:1.4rem;color:var(--purple-deep)}
.stat span{font-size:.72rem;color:var(--ink-soft)}
.stat-btn{cursor:pointer}.stat-btn:not(:disabled):hover{border-color:var(--purple-strong);background:var(--cream)}.stat-btn:disabled{cursor:default;opacity:.7}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}
.tab{font:inherit;font-weight:600;font-size:.92rem;border:1.5px solid var(--purple-mid);background:#fff;color:var(--purple-deep);padding:10px 18px;border-radius:99px;cursor:pointer}
.tab.on{background:var(--purple-deep);border-color:var(--purple-deep);color:var(--cream)}
.grp-desc{color:var(--ink-soft);margin:14px 2px 6px;font-size:.95rem}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:10px}
.tcard{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;text-decoration:none;color:inherit;box-shadow:0 12px 28px -22px rgba(74,46,92,.5);transition:transform .2s,box-shadow .2s}
a.tcard:hover{transform:translateY(-3px);box-shadow:0 20px 34px -20px rgba(74,46,92,.5);border-color:var(--purple-strong)}
.tcard.soon{opacity:.6}
.ticon{flex:none;width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--purple-strong),var(--purple-darkest));color:var(--cream);display:grid;place-items:center;font-family:var(--serif);font-size:1.15rem;font-weight:600}
.ticon.big{width:68px;height:68px;font-size:1.5rem}
.tbody{min-width:0;flex:1}
.tbody h3{font-size:1.06rem;margin-bottom:3px}
.tbody p{margin:0 0 6px;font-size:.86rem;color:var(--ink-soft);line-height:1.5}
.tmeta{font-size:.78rem;color:var(--ink-soft)}
.pill{display:inline-block;font-size:.72rem;background:var(--cream);color:var(--purple-deep);border-radius:99px;padding:2px 10px;font-weight:600;margin-top:4px}
.pill-note{background:#fbf3dc;color:#7a5f14}
.bar{height:5px;background:var(--cream-deep);border-radius:9px;margin-top:9px;overflow:hidden}.bar i{display:block;height:100%;background:var(--gold)}
.badge-box{margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px 18px}
.badge-box summary{cursor:pointer;font-weight:600;color:var(--purple-deep)}
.badges{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px;margin-top:14px}
.badge{text-align:center;font-size:.76rem;color:var(--ink-soft);opacity:.55}.badge.on{opacity:1;color:var(--ink)}
.badge i{display:block;font-style:normal;font-size:1.8rem}
.foot-tools{margin-top:22px;font-size:.88rem;color:var(--ink-soft)}
.switch input{width:18px;height:18px;vertical-align:-3px;accent-color:var(--purple-strong)}
.back{display:inline-block;color:var(--purple-deep);text-decoration:none;font-weight:600;font-size:.92rem;margin-bottom:14px}
.topic-head{display:flex;gap:16px;align-items:center;margin-bottom:20px}
.topic-head h1{font-size:1.7rem}.topic-head p{margin:4px 0 0;color:var(--ink-soft)}
.h-sm{font-size:1.4rem;margin-bottom:12px}
.today{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;background:linear-gradient(135deg,var(--purple-deep),var(--purple-darkest));color:var(--cream);border-radius:24px;padding:20px 22px}
.today b{display:block;font-family:var(--serif);font-size:1.15rem}.today span{font-size:.88rem;opacity:.85}
.today.done{background:linear-gradient(135deg,#6e8f6b,#47684a)}
.sec{font-size:1.15rem;margin:28px 0 12px}
.parts{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.part{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;display:flex;flex-direction:column}
.part-top{display:flex;justify-content:space-between;align-items:baseline;gap:8px}.part h3{font-size:1.08rem}
.part p{margin:6px 0;font-size:.88rem;color:var(--ink-soft)}
.part-btns{display:flex;gap:8px;margin-top:auto;padding-top:10px;flex-wrap:wrap}
.btn{font:inherit;font-weight:600;font-size:.95rem;min-height:48px;padding:0 22px;border-radius:99px;border:1.5px solid var(--gold);background:var(--gold);color:var(--purple-darkest);cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.btn:hover{filter:brightness(1.05)}
.btn.ghost{background:transparent;border-color:var(--purple-mid);color:var(--purple-deep)}
.today .btn{background:var(--gold)}
.linkbtn{background:none;border:0;font:inherit;color:var(--purple-deep);text-decoration:underline;cursor:pointer;padding:6px 0}
.empty{background:#fff;border:1px dashed var(--purple-mid);border-radius:18px;padding:22px;color:var(--ink-soft)}
.hint{color:var(--ink-soft);font-size:.9rem}
/* chữ Nhật + phiên âm */
.jp{font-family:'Noto Sans JP','Hiragino Sans','Yu Gothic',Meiryo,sans-serif;font-size:1.25rem;color:var(--heading-ink);font-weight:500}
.hira{font-size:.9rem;color:var(--purple-deep)}
.romaji{font-size:.86rem;color:var(--ink-soft);font-style:italic}
.vi{color:var(--ink);font-size:.95rem}
.who{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--purple-strong);font-weight:600;margin-bottom:2px}
.slist{display:flex;flex-direction:column;gap:10px}
.srow{background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 16px;display:flex;align-items:center;gap:12px;justify-content:space-between}
.srow.scene{display:block}.srow.scene .sq,.srow.scene .sa{position:relative;padding-right:48px}.srow.scene .sa{margin-top:12px;padding-top:12px;border-top:1px dashed var(--line)}
.srow.scene .spk{position:absolute;right:0;top:0}
.kgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(78px,1fr));gap:10px}
.kcell{font:inherit;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 4px;cursor:pointer}
.kcell b{display:block;font-size:1.8rem;color:var(--heading-ink);font-family:'Noto Sans JP','Hiragino Sans','Yu Gothic',sans-serif;font-weight:500}.kcell span{font-size:.82rem;color:var(--ink-soft)}
.kcell:hover{border-color:var(--purple-strong);background:var(--cream)}
.spk{flex:none;font:inherit;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-width:46px;height:46px;border-radius:99px;border:1.5px solid var(--purple-mid);background:var(--cream);color:var(--purple-deep);cursor:pointer;font-weight:600;font-size:.9rem;padding:0 12px}
.spk:hover{background:var(--purple);color:var(--purple-darkest)}
.spk.sm{min-width:42px;height:42px;padding:0 10px}
.sticky-act{position:fixed;left:0;right:0;bottom:0;background:linear-gradient(to top,var(--bg) 70%,rgba(251,249,246,0));padding:22px 18px 16px;display:flex;justify-content:center;z-index:5}
.sticky-act .btn{width:100%;max-width:520px;min-height:54px;font-size:1.02rem}
/* làm bài */
.qtop{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.qprog{flex:1;height:8px;background:var(--cream-deep);border-radius:9px;overflow:hidden}.qprog i{display:block;height:100%;background:linear-gradient(90deg,var(--purple-strong),var(--gold));transition:width .3s}
.qnum{font-size:.85rem;color:var(--ink-soft);font-weight:600}
.qcard{background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px 22px;text-align:center;box-shadow:0 14px 34px -26px rgba(74,46,92,.6)}
.qlabel{margin:0 0 12px;color:var(--purple-strong);font-weight:600;font-size:.95rem}
.jp-q{font-family:'Noto Sans JP','Hiragino Sans','Yu Gothic',Meiryo,sans-serif;font-size:2rem;line-height:1.4;color:var(--heading-ink);font-weight:500;overflow-wrap:anywhere}
.kana-q{font-family:'Noto Sans JP','Hiragino Sans','Yu Gothic',sans-serif;font-size:4rem;line-height:1.2;color:var(--heading-ink)}
.vi-q{font-family:var(--serif);font-size:1.35rem;line-height:1.5;color:var(--heading-ink)}
.qcard .hira,.qcard .romaji{margin-top:2px}.qcard .romaji{font-size:.95rem}
.qaudio{margin-top:14px}
.hintwrap{margin-top:8px}.hintbox{margin-top:6px;background:var(--cream);border-radius:12px;padding:8px 12px;font-size:.92rem}
.opts{display:grid;gap:10px;margin-top:16px}
.opt{font:inherit;text-align:left;background:#fff;border:1.5px solid var(--line);border-radius:18px;padding:14px 18px;min-height:58px;cursor:pointer;color:var(--ink);transition:border-color .15s,background .15s}
.opt:hover:not(:disabled){border-color:var(--purple-strong);background:var(--cream)}
.opt:disabled{cursor:default}
.opt .o-jp{font-family:'Noto Sans JP','Hiragino Sans','Yu Gothic',sans-serif;font-size:1.1rem;color:var(--heading-ink);display:block}
.opt .o-t{font-size:1.02rem}.opt .o-big{font-family:'Noto Sans JP','Hiragino Sans','Yu Gothic',sans-serif;font-size:2rem;display:block;text-align:center}
.opt .hira{font-size:.82rem}.opt .romaji{font-size:.8rem}
.opts .opt-big{text-align:center}
@media(min-width:620px){.opts:has(.opt-big){grid-template-columns:1fr 1fr}}
.opt.right{border-color:var(--ok);background:var(--ok-bg)}.opt.wrong{border-color:var(--no);background:var(--no-bg)}
.fb{margin-top:16px;border-radius:18px;padding:16px 18px}.fb.ok{background:var(--ok-bg);color:#1d5a37}.fb.no{background:var(--no-bg);color:#7d2b1f}
.fb>b{display:block;margin-bottom:8px}
.ex{background:rgba(255,255,255,.75);border-radius:14px;padding:10px 14px;margin-top:8px;color:var(--ink)}
.ex-jp{margin-top:8px}
/* kết quả */
.result{text-align:center;padding-top:10px}
.result h1{font-size:1.7rem;margin:14px 0 4px}
.ring{--p:0;width:130px;height:130px;margin:0 auto;border-radius:50%;background:conic-gradient(var(--gold) calc(var(--p)*1%),var(--cream-deep) 0);display:grid;place-items:center;position:relative}
.ring::before{content:'';position:absolute;inset:11px;background:var(--bg);border-radius:50%}
.ring b{position:relative;font-family:var(--serif);font-size:1.9rem;color:var(--purple-deep)}
.newbadge{background:#fbf3dc;border-radius:99px;display:inline-block;padding:8px 18px;margin:10px 4px 0;color:#6b5210}
.wlist{text-align:left;display:grid;gap:10px}.wrow{background:#fff;border:1px solid var(--line);border-radius:16px;padding:6px 10px}
.res-btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:26px}
@media(max-width:480px){html{font-size:16.5px}.hero-mini h1{font-size:1.65rem}.statbar{gap:6px}.jp-q{font-size:1.7rem}.kana-q{font-size:3.4rem}.stat b{font-size:1.2rem}}
/* hiệu ứng glow vàng khi lia chuột, giống các trang khác của website */
:root{--gold-glow:rgba(217,182,92,.55);--purple-glow:rgba(202,159,221,.5)}
.tcard,.part,.srow,.kcell,.stat,.opt,.today,.kpi,.box{transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,background .2s}
a.tcard:hover,.part:hover{transform:translateY(-6px);box-shadow:0 24px 40px -22px rgba(74,46,92,.28),0 0 34px var(--gold-glow);border-color:var(--gold)}
.srow:hover,.kcell:hover{transform:translateY(-3px);box-shadow:0 14px 26px -18px rgba(74,46,92,.3),0 0 24px var(--gold-glow);border-color:var(--gold)}
.opt:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 22px -14px rgba(74,46,92,.3),0 0 24px var(--gold-glow);border-color:var(--gold)}
.stat-btn:not(:disabled):hover{box-shadow:0 0 24px var(--gold-glow);border-color:var(--gold)}
.tab:hover{box-shadow:0 8px 20px -6px var(--purple-glow);background:rgba(202,159,221,.16)}.tab.on:hover{background:var(--purple-deep)}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px -10px rgba(74,46,92,.5),0 0 28px var(--gold-glow)}
.spk:hover{box-shadow:0 0 20px var(--purple-glow)}
@media(prefers-reduced-motion:reduce){.tcard,.part,.srow,.kcell,.opt,.btn{transition:none}a.tcard:hover,.part:hover,.srow:hover,.kcell:hover,.opt:hover,.btn:hover{transform:none}}

/* bố cục gọn: đáp án + nút tiếp theo luôn nằm trong một màn hình */
.qcard{padding:14px 16px;border-radius:20px}
.qlabel{margin:0 0 6px;font-size:.88rem}
.jp-q{font-size:1.6rem;line-height:1.3}.kana-q{font-size:3rem;line-height:1.1}.vi-q{font-size:1.15rem;line-height:1.4}
.qaudio{margin-top:8px}.hintwrap{margin-top:4px}
.qtop{margin-bottom:10px}
.opts{gap:7px;margin-top:10px}
.opt{padding:9px 14px;min-height:46px;border-radius:14px}
.opt .o-jp{font-size:1.02rem}.opt .o-t{font-size:.97rem}.opt .o-big{font-size:1.7rem}
.fbpanel{position:fixed;left:0;right:0;bottom:0;z-index:6;background:#fff;border-top:1px solid var(--line);box-shadow:0 -14px 30px -16px rgba(74,46,92,.35);padding:10px 14px 12px;max-height:46vh;overflow:auto;display:flex;flex-direction:column;gap:8px}
.fbpanel .fb{margin:0;padding:9px 12px;border-radius:14px;font-size:.93rem}
.fbpanel .fb>b{margin-bottom:3px}
.fbpanel .ex{padding:6px 10px;margin-top:5px;font-size:.92rem}
.fbpanel .ex .who{font-size:.75rem}
.fbpanel .fbact{position:sticky;bottom:0;display:flex;justify-content:center}
.fbpanel .fbact .btn{width:100%;max-width:520px;min-height:48px}
.fbpanel .spk.sm{height:36px;min-width:36px}
@media(max-height:700px){.jp-q{font-size:1.4rem}.kana-q{font-size:2.4rem}.opt{min-height:42px;padding:7px 12px}}
.qcard.done{padding:10px 14px}.qcard.done .jp-q{font-size:1.25rem}.qcard.done .kana-q{font-size:2.2rem}.qcard.done .vi-q{font-size:1rem}
.qcard.done .hira{font-size:.8rem}.qcard.done .romaji{font-size:.78rem}.qcard.done .qlabel{display:none}.qcard.done .qaudio{margin-top:4px}
.qcard.done .spk{height:34px;min-width:34px}
.fbpanel{max-height:40vh}
.qcard.done .romaji,.qcard.done .qaudio,.qcard.done .hintwrap .linkbtn{display:none!important}
.qcard.done .hintbox{margin-top:2px;padding:5px 10px;font-size:.88rem}

/* app tiếng Anh: chữ Anh dùng font của site; giao diện tiếng Nhật dùng Noto Sans JP */
.en-q{font-family:var(--serif);font-size:1.55rem;line-height:1.35;color:var(--heading-ink);font-weight:500;overflow-wrap:anywhere}
.en{font-family:var(--sans);font-size:1.12rem;color:var(--heading-ink);font-weight:600;overflow-wrap:anywhere}
.opt .o-en{font-family:var(--sans);font-size:1.02rem;color:var(--heading-ink);display:block;overflow-wrap:anywhere}
.ex-jp .en{font-size:1rem}
.fbpanel .ex .en{font-size:1rem}
@media(max-width:480px){.en-q{font-size:1.4rem}}
@media(max-height:700px){.en-q{font-size:1.25rem}}
.qcard.done .en-q{font-size:1.1rem}
body.ui-ja,body.ui-ja .vi,body.ui-ja .vi-q,body.ui-ja .opt .o-t,body.ui-ja .hintbox,body.ui-ja .ex,body.ui-ja .tmeta,body.ui-ja .fb{font-family:'Noto Sans JP','Hiragino Sans','Yu Gothic',Meiryo,var(--sans),sans-serif}
body.ui-ja .vi-q{font-size:1.1rem}
body.ui-ja .eyebrow{letter-spacing:.08em}

/* app tiếng Anh: đáp án sai bị ẩn nên panel có thể cao hơn */
body.lang-en .fbpanel{max-height:50vh}

/* ngữ pháp */
.gpat{font-family:var(--serif,'Playfair Display',serif);font-weight:700;font-size:1.15rem;color:var(--purple-deep,#5B3874)}
.gmean{font-family:var(--sans,'Be Vietnam Pro',sans-serif);font-weight:500;font-size:.88rem;color:var(--ink-soft,#675C72);margin-left:6px}
.gst{font-size:.84rem;color:var(--ink-soft,#675C72);margin:2px 0 6px}
.gcard .jp{margin-top:4px}
.gex .jp{margin-top:2px}
.fbpanel .gex .romaji{display:none}
.fbpanel .gex .jp{font-size:1.02rem;line-height:1.45}
.fbpanel .gex .hira{font-size:.82rem}
.fbpanel .gex .gpat{font-size:1rem}
.fbpanel .gex .gmean{font-size:.8rem;margin-left:4px}
.fbpanel .gex .gst{font-size:.78rem;margin:1px 0 3px}
.fbpanel .gex .vi{font-size:.86rem}