/* ══════════════════════════════════════════════════════════════
   Learn with Stories — shared design system (A1, A2, …)
   Custom token system: brand forest green + cream canvas + glass.
   ══════════════════════════════════════════════════════════════ */
:root{
  --paper:#f8f7f3; --paper-2:#fffdf9; --cream-dark:#efe9dc; --card:#fff;
  --ink:#1c1917; --muted:#6b6860; --line:#e7e2d6;
  --forest:#0f3320; --green:#1a5233; --emerald:#059669; --mint:#10b981; --gold:#b5831a;
  --a1:#10b981; --a1-soft:#d1fae5; --a1-bd:#6ee7b7;
  --ok:#059669; --ok-soft:#d1fae5; --err:#dc2626; --err-soft:#fee2e2;
  --serif:'Fraunces',Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',sans-serif;background:var(--paper);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;}
.material-symbols-outlined{font-variation-settings:'FILL' 1,'wght' 500,'GRAD' 0,'opsz' 24;vertical-align:middle;}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px;}
[hidden]{display:none!important;}

/* ── NAV ── */
.nav{position:sticky;top:0;z-index:200;background:rgba(248,247,243,.88);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);border-bottom:1px solid rgba(26,82,51,.10);box-shadow:0 1px 0 rgba(181,131,26,.16);}
.nav-in{max-width:1080px;margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.nav-logo{display:flex;align-items:center;gap:11px;text-decoration:none;}
.nav-logo img{height:50px;width:auto;}
.nav-logo b{font-family:var(--serif);font-size:18px;font-weight:900;color:var(--forest);letter-spacing:-.01em;}
.nav-logo small{display:block;font-size:8px;font-weight:700;letter-spacing:.26em;text-transform:uppercase;color:var(--gold);margin-top:2px;}
.nav-back{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;color:var(--muted);text-decoration:none;padding:9px 15px;border-radius:11px;border:1.5px solid var(--line);background:var(--card);transition:all .2s;cursor:pointer;}
.nav-back:hover{color:var(--green);border-color:var(--a1-bd);transform:translateY(-1px);}

/* ════════ INDEX ════════ */
.hero{padding:52px 0 26px;}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--gold);margin-bottom:15px;}
.eyebrow::before{content:'';width:24px;height:2px;background:var(--gold);}
.hero h1{font-family:var(--serif);font-size:clamp(32px,5.2vw,52px);font-weight:900;line-height:1.08;letter-spacing:-.02em;margin-bottom:14px;}
.hero h1 em{font-style:italic;color:var(--emerald);}
.hero p{font-size:16.5px;color:var(--muted);max-width:640px;line-height:1.8;}
.meta-row-hero{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.meta-chip{display:inline-flex;align-items:center;gap:7px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:7px 14px;font-size:13px;font-weight:700;color:var(--green);}
.meta-chip .material-symbols-outlined{font-size:17px;color:var(--emerald);}
.progress-strip{margin:26px 0 6px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 20px;display:flex;align-items:center;gap:16px;}
.progress-strip .ps-ring{flex-shrink:0;width:46px;height:46px;border-radius:50%;background:conic-gradient(var(--emerald) var(--pct,0%),#e9e4d8 0);display:flex;align-items:center;justify-content:center;}
.progress-strip .ps-ring i{width:36px;height:36px;border-radius:50%;background:var(--card);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:var(--forest);font-style:normal;}
.progress-strip .ps-txt b{font-family:var(--serif);font-size:15px;}
.progress-strip .ps-txt span{display:block;font-size:13px;color:var(--muted);}

.story-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;padding:18px 0 70px;}
.scard{position:relative;display:flex;gap:16px;align-items:flex-start;text-align:left;background:var(--card);border:1.5px solid var(--line);border-radius:20px;padding:20px;cursor:pointer;transition:transform .25s cubic-bezier(.34,1.56,.64,1),box-shadow .25s,border-color .25s;overflow:hidden;width:100%;font-family:inherit;}
.scard:hover{transform:translateY(-5px);border-color:var(--a1-bd);box-shadow:0 18px 40px -22px rgba(5,150,105,.5);}
.scard-emoji{flex-shrink:0;width:56px;height:56px;border-radius:16px;background:linear-gradient(150deg,var(--a1-soft),#ecfdf5);display:flex;align-items:center;justify-content:center;font-size:28px;border:1px solid var(--a1-bd);}
.scard-body{flex:1;min-width:0;}
.scard-no{font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);}
.scard-title{font-family:var(--serif);font-size:18.5px;font-weight:800;line-height:1.2;margin:3px 0 6px;color:var(--ink);}
.scard-grammar{font-size:12.5px;color:var(--muted);line-height:1.5;}
.scard-foot{display:flex;align-items:center;gap:12px;margin-top:12px;font-size:12px;font-weight:700;color:var(--green);}
.scard-foot .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.scard-status{position:absolute;top:14px;right:14px;display:inline-flex;align-items:center;gap:4px;font-size:10.5px;font-weight:800;padding:3px 9px;border-radius:999px;letter-spacing:.03em;}
.scard-status.done{background:var(--ok-soft);color:var(--ok);}
.scard-status.done .material-symbols-outlined{font-size:13px;}

/* ════════ READER ════════ */
.reader-top{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:26px 0 6px;flex-wrap:wrap;}
.story-head{padding:8px 0 6px;}
.reader h2.story-title{font-family:var(--serif);font-size:clamp(30px,4.6vw,46px);font-weight:900;letter-spacing:-.02em;line-height:1.08;margin-bottom:14px;}
/* metadata row */
.meta-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:6px;}
.meta-pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;color:var(--green);background:var(--paper-2);border:1px solid var(--line);border-radius:999px;padding:6px 13px;}
.meta-pill .material-symbols-outlined{font-size:15px;color:var(--emerald);}
.meta-pill.focus{background:var(--a1-soft);border-color:var(--a1-bd);color:var(--forest);font-weight:800;}

/* typography-first split: ONE illustration (right ~35%), continuous text (left ~65%) */
.reader-split{display:grid;grid-template-columns:64% 1fr;gap:38px;align-items:start;padding:18px 0 6px;}
.story-flow{cursor:text;}
.story-flow p{font-family:var(--serif);font-size:clamp(20px,2.05vw,25px);font-weight:400;line-height:1.78;letter-spacing:-.005em;color:#2a2723;margin-bottom:22px;}
.story-flow p:last-child{margin-bottom:0;}
/* CUSTOM SELECTION — no default blue; brand green + glow */
.story-flow ::selection{background:rgba(16,185,129,.22);color:var(--forest);}
.story-flow ::-moz-selection{background:rgba(16,185,129,.22);color:var(--forest);}
.story-flow.sel-glow{animation:selGlow 1.1s ease;}
@keyframes selGlow{0%{box-shadow:0 0 0 0 rgba(16,185,129,0);border-radius:14px}40%{box-shadow:0 0 0 4px rgba(16,185,129,.16),0 0 26px rgba(16,185,129,.22)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}
.tap-hint{display:flex!important;align-items:center;gap:8px;font-family:'Inter',sans-serif!important;font-size:12.5px!important;font-weight:600!important;line-height:1.5!important;color:var(--muted)!important;background:var(--a1-soft);border:1px solid var(--a1-bd);border-radius:11px;padding:9px 13px;margin-bottom:22px!important;}
.tap-hint .material-symbols-outlined{font-size:16px;color:var(--emerald);}
.story-aside{position:sticky;top:88px;}

/* ── SELF-GENERATED ILLUSTRATION (inline SVG art + glass focal) ── */
.illus{position:relative;width:100%;aspect-ratio:4/5;border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:0 26px 60px -32px rgba(15,45,26,.6),inset 0 1px 0 rgba(255,255,255,.4);}
.illus-svg{position:absolute;inset:0;width:100%;height:100%;display:block;}
.illus-focal{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;}
.illus-focal .ring{width:96px;height:96px;border-radius:50%;background:rgba(255,255,255,.18);backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);border:1px solid rgba(255,255,255,.55);display:flex;align-items:center;justify-content:center;box-shadow:0 12px 34px -8px rgba(0,0,0,.35);animation:focalFloat 6s ease-in-out infinite;}
.illus-focal .material-symbols-outlined{font-size:46px;color:#fff;}
@keyframes focalFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.illus-cap{position:absolute;left:16px;bottom:14px;color:#fff;font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;opacity:.92;text-shadow:0 1px 8px rgba(0,0,0,.35);}

/* ── KEYWORDS & PHRASAL VERBS PANEL ── */
.vp-panel{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px 30px;margin-top:34px;box-shadow:0 18px 44px -32px rgba(15,45,26,.4);}
.vp-label{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--emerald);margin-bottom:6px;}
.vp-panel h3{font-family:var(--serif);font-size:22px;font-weight:800;margin-bottom:18px;}
.vp-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.vp-card{background:var(--paper-2);border:1px solid var(--line);border-left:3px solid var(--emerald);border-radius:13px;padding:13px 15px;}
.vp-card .vw{font-family:var(--serif);font-size:16px;font-weight:800;color:var(--forest);}
.vp-card .vpos{font-size:11px;font-weight:700;font-style:italic;color:var(--muted);margin-left:6px;}
.vp-card .vm{font-size:13px;line-height:1.55;color:var(--muted);margin-top:3px;}
.phrasal-block{margin-top:22px;}
.phrasal-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:var(--gold);text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px;}
.pv-card{display:flex;gap:14px;align-items:flex-start;background:linear-gradient(135deg,#fbf6e9,#fffdf7);border:1px solid #f0e2bf;border-radius:14px;padding:14px 16px;margin-bottom:10px;}
.pv-chip{flex-shrink:0;display:flex;flex-direction:column;align-items:center;gap:2px;}
.pv-verb{font-family:var(--serif);font-size:16px;font-weight:800;color:var(--forest);}
.pv-parts{display:flex;gap:4px;margin-top:4px;}
.pv-part{font-size:10px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:#7a5a12;background:#f6e6bd;border-radius:6px;padding:2px 7px;}
.pv-mean{font-size:14px;line-height:1.6;color:#5a4a2a;}
.pv-mean b{color:var(--forest);}

/* ── GLASSMORPHIC TRANSLATE POPOVER ── */
#pop{position:fixed;z-index:600;width:300px;max-width:calc(100vw - 24px);background:rgba(255,255,255,.78);backdrop-filter:blur(16px) saturate(150%);-webkit-backdrop-filter:blur(16px) saturate(150%);border:1px solid rgba(255,255,255,.7);border-radius:18px;box-shadow:0 26px 64px -24px rgba(15,45,26,.55);padding:16px 18px;opacity:0;transform:translateY(6px) scale(.97);pointer-events:none;transition:opacity .18s,transform .18s;}
#pop.show{opacity:1;transform:translateY(0) scale(1);pointer-events:auto;animation:popGlow 1.4s ease;}
@keyframes popGlow{0%{box-shadow:0 26px 64px -24px rgba(15,45,26,.55),0 0 0 0 rgba(16,185,129,.5)}40%{box-shadow:0 26px 64px -24px rgba(15,45,26,.55),0 0 0 4px rgba(16,185,129,.25)}100%{box-shadow:0 26px 64px -24px rgba(15,45,26,.55),0 0 0 0 rgba(16,185,129,0)}}
#pop .pop-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px;}
#pop .pop-word{font-family:var(--serif);font-size:19px;font-weight:800;color:var(--forest);line-height:1.2;}
#pop .pop-lang{font-size:12px;font-weight:700;color:var(--green);background:rgba(255,255,255,.7);border:1px solid var(--line);border-radius:9px;padding:5px 7px;cursor:pointer;font-family:'Inter',sans-serif;outline:none;max-width:120px;}
#pop .pop-tr-row{display:flex;align-items:center;gap:8px;margin-bottom:10px;min-height:26px;}
#pop .pop-flag{flex-shrink:0;font-size:10px;font-weight:800;letter-spacing:.04em;color:#fff;background:var(--emerald);border-radius:6px;padding:2px 7px;text-transform:uppercase;}
#pop .pop-tr{font-size:16px;font-weight:700;color:var(--green);}
#pop .pop-tr.loading{color:var(--muted);font-weight:600;font-style:italic;font-size:14px;}
#pop .pop-tr.err{color:#b45309;font-weight:600;font-style:italic;font-size:13px;}
#pop .pop-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid rgba(231,226,214,.7);padding-top:11px;}
#pop .pop-attr{font-size:10.5px;color:var(--muted);}
#pop .pop-fc{display:inline-flex;align-items:center;gap:6px;font-family:'Inter',sans-serif;font-size:12.5px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--mint),var(--emerald));border:none;border-radius:10px;padding:8px 13px;cursor:pointer;transition:transform .18s,box-shadow .18s,opacity .18s;box-shadow:0 6px 16px -6px rgba(5,150,105,.6);}
#pop .pop-fc:hover{transform:translateY(-1px);box-shadow:0 9px 20px -6px rgba(5,150,105,.7);}
#pop .pop-fc .material-symbols-outlined{font-size:16px;}
#pop .pop-fc.saved{background:var(--ok-soft);color:var(--ok);box-shadow:none;cursor:default;animation:fcPop .4s cubic-bezier(.34,1.56,.64,1);}
@keyframes fcPop{0%{transform:scale(.85)}60%{transform:scale(1.06)}100%{transform:scale(1)}}
#pop .pop-arrow{position:absolute;width:12px;height:12px;background:rgba(255,255,255,.82);border-left:1px solid rgba(255,255,255,.7);border-top:1px solid rgba(255,255,255,.7);}

/* ── QUIZ ── */
.quiz{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:32px;margin:34px 0 10px;box-shadow:0 20px 48px -32px rgba(15,45,26,.4);}
.quiz-label{display:flex;align-items:center;gap:9px;font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--emerald);margin-bottom:6px;}
.quiz h3{font-family:var(--serif);font-size:24px;font-weight:800;margin-bottom:4px;}
.quiz .quiz-sub{font-size:14px;color:var(--muted);margin-bottom:8px;}
.quiz-bar{height:6px;border-radius:999px;background:#eee7da;overflow:hidden;margin:14px 0 24px;}
.quiz-bar>span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--mint),var(--emerald));border-radius:999px;transition:width .4s cubic-bezier(.16,1,.3,1);}
.q{padding:20px 0;border-top:1px solid var(--line);}
.q:first-of-type{border-top:none;padding-top:4px;}
.q-prompt{font-size:16.5px;font-weight:700;line-height:1.5;margin-bottom:14px;display:flex;gap:10px;}
.q-prompt .q-n{flex-shrink:0;width:25px;height:25px;border-radius:8px;background:var(--a1-soft);color:var(--emerald);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;}
.opt{display:flex;align-items:center;gap:11px;width:100%;text-align:left;font-family:'Inter',sans-serif;font-size:14.5px;font-weight:600;color:var(--ink);background:var(--paper-2);border:1.5px solid var(--line);border-radius:13px;padding:13px 16px;margin-bottom:9px;cursor:pointer;transition:transform .15s,border-color .2s,background .2s,box-shadow .2s;}
.opt:hover:not(.locked){border-color:var(--a1-bd);transform:translateX(3px);}
.opt .opt-key{flex-shrink:0;width:24px;height:24px;border-radius:7px;background:#fff;border:1.5px solid var(--line);font-size:12px;font-weight:800;color:var(--muted);display:flex;align-items:center;justify-content:center;transition:all .2s;}
.opt.locked{cursor:default;}
.opt.correct{background:var(--ok-soft);border-color:var(--ok);color:#065f46;animation:pop .4s ease;}
.opt.correct .opt-key{background:var(--ok);border-color:var(--ok);color:#fff;}
.opt.wrong{background:var(--err-soft);border-color:#fca5a5;color:#991b1b;animation:shake .4s ease;}
.opt.wrong .opt-key{background:var(--err);border-color:var(--err);color:#fff;}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.025)}100%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.q-fb{font-size:13px;font-weight:700;margin-top:4px;min-height:18px;}
.q-fb.ok{color:var(--ok);}.q-fb.no{color:var(--err);}

/* ── SUCCESS BANNER ── (resting state visible; transform-only entrance) */
.banner{display:none;position:relative;overflow:hidden;margin-top:24px;border-radius:20px;padding:26px 28px;text-align:center;color:#fff;background:linear-gradient(135deg,#0f3320,#047857);box-shadow:0 22px 54px -26px rgba(5,150,105,.7);}
.banner.show{display:block;animation:bannerIn .55s cubic-bezier(.16,1,.3,1);}
@keyframes bannerIn{from{transform:translateY(16px)}to{transform:none}}
.banner.fail{background:linear-gradient(135deg,#3a2a12,#92660f);}
.banner .b-seal{width:60px;height:60px;border-radius:18px;background:rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;margin:0 auto 12px;animation:sealPop .55s cubic-bezier(.34,1.56,.64,1) both;}
.banner .b-seal .material-symbols-outlined{font-size:34px;}
@keyframes sealPop{from{transform:scale(.4) rotate(-12deg)}to{transform:none}}
.banner h3{font-family:var(--serif);font-size:25px;font-weight:900;margin-bottom:6px;}
.banner .b-score{font-family:var(--serif);font-size:46px;font-weight:900;line-height:1;margin:6px 0;}
.banner p{font-size:14px;opacity:.92;max-width:460px;margin:0 auto 4px;line-height:1.6;}
.banner .b-sync{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;background:rgba(255,255,255,.16);border-radius:999px;padding:6px 14px;margin-top:12px;}
.banner .b-sync .material-symbols-outlined{font-size:15px;}
.banner .b-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:16px;}
.banner .b-btn{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:800;padding:11px 18px;border-radius:12px;border:none;cursor:pointer;text-decoration:none;font-family:'Inter',sans-serif;}
.banner .b-btn.primary{background:#fff;color:var(--forest);}
.banner .b-btn.ghost{background:rgba(255,255,255,.14);color:#fff;}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:700;overflow:hidden;}
.confetti i{position:absolute;top:-14px;width:9px;height:14px;border-radius:2px;opacity:.9;animation:cfall linear forwards;}
@keyframes cfall{to{transform:translateY(105vh) rotate(640deg);opacity:.7;}}

/* ── TOAST (flashcard saved) ── */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(16px);z-index:800;display:flex;align-items:center;gap:9px;background:var(--forest);color:#fff;font-size:14px;font-weight:700;padding:13px 20px;border-radius:14px;box-shadow:0 18px 44px -16px rgba(15,45,26,.7);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
.toast .material-symbols-outlined{color:#6ee7b7;font-size:19px;}

/* ── STORY ARCS (Netflix-style grouping) ── */
.arc{margin-bottom:10px;}
.arc-head{margin:30px 0 16px;}
.arc:first-child .arc-head{margin-top:6px;}
.arc-tag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:5px;}
.arc-title{font-family:var(--serif);font-size:clamp(22px,3vw,28px);font-weight:900;letter-spacing:-.01em;color:var(--forest);line-height:1.15;}
.arc-blurb{font-size:14px;color:var(--muted);max-width:660px;margin-top:7px;line-height:1.65;}
/* arc/episode meta pill + idiom cards (violet accent) */
.meta-pill.arc{background:#ede9fe;border-color:#c4b5fd;color:#5b21b6;}
.meta-pill.arc .material-symbols-outlined{color:#7c3aed;}
.phrasal-head.idiom{color:#7c3aed;}
.pv-card.idiom{background:linear-gradient(135deg,#f5f3ff,#fdfcff);border-color:#ddd6fe;}
.pv-card.idiom .pv-verb{color:#5b21b6;}
.pv-card.idiom .pv-mean{color:#4c1d95;}
.pv-card.idiom .pv-mean b{color:#5b21b6;}

.foot{background:var(--forest);color:#bfe3cf;margin-top:48px;}
.foot-in{max-width:1080px;margin:0 auto;padding:32px 24px;display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;font-size:13px;}
.foot-in a{color:#8fc7a6;text-decoration:none;}.foot-in a:hover{color:#fff;}

@media(max-width:820px){
  .story-grid{grid-template-columns:1fr;}
  .reader-split{grid-template-columns:1fr;gap:18px;}
  .story-aside{position:static;order:-1;}
  .illus{aspect-ratio:16/9;}
  .vp-grid{grid-template-columns:1fr;}
  .quiz{padding:22px;}
}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto;animation:none!important;transition:none!important;}}