/* SHLIFIM — Modern + Brand Spark design system (v2). RTL, mobile-first. */

/* ============ TOKENS ============ */
:root{
  /* brand ramps */
  --blue-50:#EAF6FB; --blue-100:#D6ECF6; --blue-300:#7CC7EC; --blue-500:#3FA9D6; --blue-700:#1B6FA8; --blue-900:#0E3F5E;
  --green-50:#EEF7EC; --green-100:#DCEFD6; --green-500:#5CB85C; --green-700:#3F8C3F; --green-900:#235023;
  --coral-50:#FDEEEC; --coral-100:#F9D5CF; --coral-500:#F0654F; --coral-700:#D24B36; --coral-900:#7A2418;
  --spark:#F9D85C; --spark-ink:#C98A00;
  /* light semantic */
  --bg:#FBFAF6; --surface:#fff; --surface-2:#F4F1E9; --border:#ECE7DA;
  --text:#15212C; --text-2:#5A6470; --text-3:#8A93A0;
  --success:var(--green-700); --danger:var(--coral-700);
  --focus:rgba(63,169,214,.45);
  --e1:0 1px 2px rgba(20,30,45,.04);
  --e2:0 6px 18px rgba(27,111,168,.07);
  --e3:0 14px 34px rgba(27,111,168,.12);
  --grad:linear-gradient(135deg,#3FA9D6,#5CB85C);
  /* default accent = glossary/blue */
  --accent:#3FA9D6; --accent-strong:#1B6FA8; --accent-soft:#EAF6FB;
  /* radius / space */
  --r-sm:10px; --r-md:14px; --r-lg:18px; --r-xl:24px; --r-pill:999px;
  --fast:.12s; --base:.2s; --slow:.32s; --ease:cubic-bezier(.2,.7,.2,1);
}
html.dark{
  --bg:#0E151C; --surface:#16202B; --surface-2:#1C2733; --border:#2A3744;
  --text:#ECEFF3; --text-2:#AEB8C2; --text-3:#7C8794;
  --accent-soft:#13283a;
  --e1:0 1px 2px rgba(0,0,0,.3); --e2:0 6px 18px rgba(0,0,0,.4); --e3:0 14px 34px rgba(0,0,0,.5);
}
[data-mode="glossary"]  { --accent:#3FA9D6; --accent-strong:#1B6FA8; --accent-soft:var(--blue-50); }
[data-mode="flashcards"]{ --accent:#5CB85C; --accent-strong:#3F8C3F; --accent-soft:var(--green-50); }
[data-mode="quiz"]      { --accent:#F0654F; --accent-strong:#D24B36; --accent-soft:var(--coral-50); }
html.dark [data-mode="glossary"]{--accent-soft:#13283a}
html.dark [data-mode="flashcards"]{--accent-soft:#15301c}
html.dark [data-mode="quiz"]{--accent-soft:#371a15}

/* ============ BASE ============ */
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Assistant',system-ui,sans-serif; background:var(--bg); color:var(--text);
  direction:rtl; -webkit-font-smoothing:antialiased; font-synthesis:none; transition:background var(--base),color var(--base);
  overscroll-behavior-y:none;
}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input{font-family:inherit}
.rubik{font-family:'Secular One',sans-serif}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* app frame */
.app{max-width:520px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;position:relative;background:var(--bg)}
/* --kb is the on-screen keyboard height, published by syncKeyboardInset(). Without it a quiz
   question fits the screen exactly, leaving nothing to scroll and no way to lift the answer
   field out from under the keyboard. It is 0 whenever the keyboard is closed. */
.scroll{flex:1;overflow-y:auto;padding:0 16px calc(120px + var(--kb,0px))}

/* ============ HEADER ============ */
.hdr{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:10px;padding:14px 16px 12px;
  background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}
.flask{width:30px;height:30px;flex:0 0 auto}
.brand{display:flex;flex-direction:column;line-height:1.05}
.brand b{font-family:'Secular One';font-weight:700;font-size:17px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand span{font-size:10px;color:var(--text-3);font-weight:600}
.hdr-spacer{margin-inline-start:auto}
.streak{display:inline-flex;align-items:center;gap:5px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-pill);padding:6px 11px;font-size:12.5px;font-weight:700;color:var(--spark-ink);box-shadow:var(--e1)}
.icon-toggle{width:40px;height:40px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--border);font-size:17px;box-shadow:var(--e1)}

/* ============ BOTTOM NAV ============ */
.nav{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:100%;max-width:520px;z-index:30;
  display:flex;justify-content:space-around;background:var(--surface);border-top:1px solid var(--border);
  padding:8px 6px calc(8px + env(safe-area-inset-bottom));box-shadow:0 -6px 20px rgba(0,0,0,.05)}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;font-weight:700;
  color:var(--text-3);padding:5px 0 3px;transition:color var(--base)}
.tab svg{width:25px;height:25px;opacity:.5;transition:opacity var(--base),transform var(--base)}
.tab.on svg{opacity:1;transform:translateY(-1px)}
.tab .pipe{height:3px;width:24px;border-radius:var(--r-pill);background:transparent;transition:background var(--base)}
.tab.on.g{color:var(--blue-700)} .tab.on.g .pipe{background:var(--blue-700)}
.tab.on.f{color:var(--green-700)} .tab.on.f .pipe{background:var(--green-700)}
.tab.on.q{color:var(--coral-700)} .tab.on.q .pipe{background:var(--coral-700)}

/* ============ SEARCH + FILTERS ============ */
.search{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);padding:12px 13px;box-shadow:var(--e2);margin:14px 0 12px}
.search input{flex:1;border:none;background:none;font-size:15px;color:var(--text);outline:none}
.search input::placeholder{color:var(--text-3)}
.search .x{width:26px;height:26px;border-radius:50%;background:var(--surface-2);color:var(--text-2);font-size:16px}
.chips{display:flex;gap:7px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px;margin-bottom:8px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;padding:7px 13px;border-radius:var(--r-pill);background:var(--surface);border:1px solid var(--border);
  font-size:13px;font-weight:700;color:var(--text-2);white-space:nowrap}
.chip.on{background:var(--grad);color:#fff;border-color:transparent}
.letters{display:flex;gap:6px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px;margin-bottom:6px;scrollbar-width:none}
.letters::-webkit-scrollbar{display:none}
.let{flex:0 0 auto;width:32px;height:32px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:13px;background:var(--surface);border:1px solid var(--border);color:var(--text-2)}
.let.on{background:var(--grad);color:#fff;border-color:transparent}
.let:disabled{opacity:.3}
.meta{font-size:12.5px;color:var(--text-3);font-weight:600;margin:2px 2px 10px}

/* ============ TERM CARD ============ */
.card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:14px 14px 13px;margin-bottom:12px;box-shadow:var(--e2);overflow:hidden}
.card::before{content:"";position:absolute;inset-inline-start:0;top:0;bottom:0;width:4px;background:var(--grad)}
.card.studied{background:linear-gradient(180deg,var(--surface),color-mix(in srgb,var(--green-500) 8%,var(--surface)))}
.card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.term{font-family:'Assistant',sans-serif;font-weight:800;font-size:19px;line-height:1.45}
.term .hl{background:linear-gradient(180deg,transparent 62%,var(--spark) 62%);padding:0 2px}
html.dark .term .hl{background:linear-gradient(180deg,transparent 62%,rgba(249,216,92,.32) 62%)}
.en{font-size:12px;color:var(--text-3)}
.subj{display:inline-flex;align-items:center;gap:5px;margin-top:7px;font-size:11.5px;font-weight:700;
  color:var(--accent-strong);background:var(--accent-soft);border-radius:var(--r-pill);padding:3px 9px}
.def{font-size:14px;line-height:1.6;color:var(--text-2);margin-top:9px}
.alias-note{font-size:12px;color:var(--text-3);margin-top:6px}
.alias-note b{color:var(--accent-strong)}
.acts{display:flex;gap:6px;flex:0 0 auto}
.ibtn{width:38px;height:38px;border-radius:var(--r-md);border:1px solid var(--border);background:var(--surface);
  display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--text-3)}
.ibtn.fav{color:var(--spark-ink);border-color:var(--spark);background:#FFFBEA}
html.dark .ibtn.fav{background:#2a2410}
.ibtn.done{color:#fff;background:var(--green-500);border-color:var(--green-700)}
.more{margin-top:6px;font-size:13px;font-weight:700;color:var(--accent-strong)}

/* ============ BUTTONS ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;padding:0 18px;
  border-radius:var(--r-md);font-weight:700;font-size:15px;transition:transform var(--fast)}
.btn:active{transform:scale(.97)}
.btn-pri{background:var(--grad);color:#fff;box-shadow:var(--e2)}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-strong));color:#fff;box-shadow:var(--e2)}
.btn-ghost{background:var(--surface);border:1.5px solid var(--border);color:var(--text)}

/* ============ HERO (mode intro) ============ */
.hero{padding:18px 2px 4px}
.hero h1{font-family:'Secular One';font-weight:800;font-size:26px;letter-spacing:-.5px;margin:0}
.hero p{color:var(--text-2);font-size:14px;margin:6px 0 0}

/* ============ FLASHCARDS ============ */
.deck{display:flex;gap:7px;margin:12px 0 14px}
.deck .chip{flex:1;text-align:center}
.prog{display:flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;color:var(--accent-strong);margin-bottom:12px}
.bar{flex:1;height:7px;border-radius:var(--r-pill);background:var(--surface-2);overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-strong));border-radius:var(--r-pill);transition:width var(--slow) var(--ease)}
.fc{perspective:1400px;margin:6px 0}
.fc-inner{position:relative;min-height:300px;transition:transform .48s var(--ease);transform-style:preserve-3d;cursor:pointer}
.fc.flip .fc-inner{transform:rotateY(180deg)}
.fc-face{position:absolute;inset:0;backface-visibility:hidden;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-xl);box-shadow:var(--e3);display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:28px 22px;overflow:hidden}
.fc-face::after{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,var(--accent),var(--accent-strong))}
.fc-back{transform:rotateY(180deg)}
.fc-badge{width:42px;height:42px;border-radius:var(--r-md);background:var(--accent-soft);color:var(--accent-strong);
  font-family:'Secular One';font-weight:700;font-size:20px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.fc-term{font-family:'Assistant',sans-serif;font-weight:800;font-size:30px;line-height:1.5}
.fc-en{font-size:15px;color:var(--text-3);margin-top:6px}
.fc-def{font-size:15.5px;line-height:1.65;color:var(--text);max-width:34ch}
.fc-hint{position:absolute;bottom:14px;font-size:12px;color:var(--text-3)}
.fc-ctrl{display:flex;align-items:center;gap:10px;margin-top:18px}
.fc-nav{width:48px;height:48px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text-2)}

/* ============ QUIZ ============ */
.q-top{display:flex;align-items:center;gap:9px;font-size:12.5px;font-weight:700;color:var(--accent-strong);margin:6px 0 10px}
.q-score{margin-inline-start:auto;color:var(--green-700)}
.q-kind{display:inline-block;font-size:12px;font-weight:700;color:var(--accent-strong);background:var(--accent-soft);
  border-radius:var(--r-pill);padding:4px 11px;margin-bottom:10px}
.q-q{font-family:'Secular One';font-weight:700;font-size:21px;line-height:1.35;margin-bottom:16px}
.q-q .hl{background:linear-gradient(180deg,transparent 62%,var(--spark) 62%);padding:0 2px}
.opt{width:100%;text-align:start;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--r-md);
  padding:13px 14px;margin-bottom:10px;font-size:14.5px;line-height:1.5;color:var(--text);display:flex;gap:10px;align-items:flex-start;transition:all var(--fast)}
.opt .mk{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:2px solid var(--border);font-size:12px;
  display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--text-3)}
.opt.correct{border-color:var(--green-500);background:var(--green-50)}
.opt.correct .mk{background:var(--green-500);border-color:var(--green-500);color:#fff}
html.dark .opt.correct{background:#15301c}
.opt.wrong{border-color:var(--coral-100);background:var(--coral-50);opacity:.8}
html.dark .opt.wrong{background:#371a15}
.opt.wrong .mk{border-color:var(--coral-500);color:var(--coral-700)}
.q-type-in{display:flex;gap:8px;margin-bottom:10px}
.q-type-in input{flex:1;background:var(--surface);border:1.5px solid var(--border);border-radius:var(--r-md);padding:13px 14px;font-size:15px;color:var(--text);outline:none}
.q-type-in input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--focus)}
.fb{display:flex;align-items:center;gap:8px;border-radius:var(--r-md);padding:11px 13px;font-size:13.5px;font-weight:700;margin:4px 0 2px}
.fb.ok{background:var(--green-50);border:1px solid #cdeccb;color:var(--green-700)}
.fb.no{background:var(--coral-50);border:1px solid var(--coral-100);color:var(--coral-700)}
html.dark .fb.ok{background:#15301c} html.dark .fb.no{background:#371a15}

/* ============ MISC ============ */
.empty{text-align:center;padding:48px 20px;color:var(--text-3)}
.empty h3{font-family:'Secular One';color:var(--text);margin:10px 0 4px}
.setup{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px;box-shadow:var(--e2);margin-top:8px}
.setup h2{font-family:'Secular One';font-size:18px;margin:0 0 12px}
.seg{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:14px}
.spark-pop{position:fixed;inset:0;pointer-events:none;display:flex;align-items:center;justify-content:center;font-size:60px;z-index:50;animation:pop .7s var(--ease)}
@keyframes pop{0%{opacity:0;transform:scale(.4)}30%{opacity:1;transform:scale(1.1)}100%{opacity:0;transform:scale(1.3)}}
.result{text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:30px 20px;box-shadow:var(--e3);margin-top:14px}
.result .big{font-family:'Secular One';font-weight:800;font-size:46px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ============ AUTH / AVATAR (header) ============ */
.avatar{width:38px;height:38px;border-radius:50%;overflow:hidden;border:2px solid var(--accent);background:var(--surface-2);display:flex;align-items:center;justify-content:center;font-size:17px}
.avatar img{width:100%;height:100%;object-fit:cover}
.signin-mini{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 12px;border-radius:var(--r-pill);background:var(--surface);border:1px solid var(--border);font-weight:700;font-size:13px;box-shadow:var(--e1)}

/* ============ ABOUT ============ */
.about-hero{display:flex;gap:14px;align-items:center;margin:10px 0 6px}
.portrait{width:78px;height:78px;border-radius:20px;object-fit:cover;border:2px solid var(--accent);box-shadow:var(--e2);flex:0 0 auto}
.about-kicker{font-size:12px;font-weight:700;color:var(--accent-strong)}
.about-name{font-family:'Secular One';font-weight:800;font-size:22px;margin:2px 0}
.about-body{font-size:14.5px;line-height:1.65;color:var(--text-2);margin:10px 0}
.quote{border-inline-start:4px solid var(--accent);background:var(--accent-soft);border-radius:0 12px 12px 0;padding:10px 14px;font-size:14px;color:var(--text);margin:12px 0}
.stat-row{display:flex;gap:10px;margin:14px 0}
.stat-box{flex:1;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:12px;text-align:center;box-shadow:var(--e1)}
.stat-box b{display:block;font-family:'Secular One';font-weight:800;font-size:22px;color:var(--accent-strong)}
.stat-box span{font-size:11.5px;color:var(--text-3);font-weight:600}
.stat-box span svg{width:14px;height:14px;vertical-align:-2px;margin-inline-start:2px}
.tpi{display:inline-block;width:19px;height:19px;vertical-align:-4px;margin-inline-end:3px}
.tpi svg{width:100%;height:100%;display:block}
.ibtn svg,.fc-nav svg,.streak svg{width:18px;height:18px;flex:0 0 auto}
.chip>svg,.chip .mlic svg{width:16px;height:16px}
.mlic{display:inline-flex;align-items:center;justify-content:center;vertical-align:-.2em;line-height:0;margin-inline-end:2px}
/* horizontal scroll rows with click chevrons */
.scroller{position:relative}
.scroll-arrow{position:absolute;top:calc(50% - 3px);transform:translateY(-50%);z-index:4;display:none;align-items:center;justify-content:center;width:28px;height:28px;padding:0;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text);box-shadow:0 2px 8px rgba(0,0,0,.16);cursor:pointer;transition:opacity var(--base),transform var(--base)}
.scroll-arrow.show{display:inline-flex}
.scroll-arrow:active{transform:translateY(-50%) scale(.9)}
.scroll-arrow.left{left:-4px}
.scroll-arrow.right{right:-4px}
@media (hover:hover){.chips,.letters{scroll-behavior:smooth}}
.gate-card{text-align:center;max-width:340px}
.gate-emoji{font-size:44px;line-height:1;margin-bottom:6px}
.gate-card h3{font-family:'Secular One';margin:4px 0 6px;font-size:20px}
.gate-card p{color:var(--text-2);font-size:14px;margin:0 0 16px}
.gate-card .btn,.gate-card .google-btn{width:100%;margin-top:8px}
.tab{position:relative}
.nav-av{width:25px;height:25px;border-radius:50%;overflow:hidden;background:var(--surface-2);display:flex;align-items:center;justify-content:center;font-size:15px;opacity:.5;border:1.5px solid var(--border);transition:opacity var(--base)}
.tab.on .nav-av{opacity:1;border-color:var(--accent)}
.nav-av img{width:100%;height:100%;object-fit:cover}
.nav-lock{position:absolute;top:2px;inset-inline-end:calc(50% - 18px);font-size:10px;filter:grayscale(1);opacity:.85}
.free-hint{background:var(--surface-2);border:1px dashed var(--border);border-radius:12px;padding:8px 12px;font-size:13px;color:var(--text-2);text-align:center;margin-bottom:12px;cursor:pointer}
.tier-badge{display:inline-block;font-family:'Secular One';font-size:12px;padding:3px 10px;border-radius:999px;background:var(--surface-2);color:var(--text-2);margin-top:4px}
.tier-badge.tier-paid{background:var(--grad);color:#fff}
.paywall-note{font-size:13px;color:var(--text-2);margin:0 0 4px}
.plans{display:flex;gap:10px;margin-top:12px}
.plan{flex:1;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;padding:16px 10px;border-radius:16px;border:1.5px solid var(--border);background:var(--surface);text-decoration:none;color:var(--text);transition:transform var(--base),box-shadow var(--base)}
.plan:hover{transform:translateY(-2px);box-shadow:var(--e2)}
.plan-best{border-color:transparent;background:var(--grad);color:#fff}
.plan-badge{position:absolute;top:-9px;background:var(--coral-500);color:#fff;font-family:'Secular One';font-size:10px;padding:2px 8px;border-radius:999px;white-space:nowrap}
.plan-per{font-family:'Secular One';font-weight:800;font-size:22px;line-height:1}
.plan-unit{font-size:12px;opacity:.85}
.plan-year{font-size:10.5px;opacity:.75;margin-top:4px;line-height:1.3}
.num-ltr{direction:ltr;unicode-bidi:embed;display:inline-block}
/* contrast effect: real anchor prices shown right before the small subscription price */
.anchor-row{display:flex;gap:8px;margin:2px 0 10px}
.anchor-item{flex:1;background:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:9px 8px;text-align:center}
.anchor-item span{display:block;font-size:10.5px;color:var(--text-3);line-height:1.3;margin-bottom:3px}
.anchor-item b{font-family:'Secular One';font-size:17px;color:var(--text-3);text-decoration:line-through;text-decoration-thickness:1.5px}
.anchor-lead{font-size:13px;color:var(--text-2);margin:0 0 6px!important;font-weight:700}
/* ownership + loss aversion on the sign-up gate */
.gate-built{display:flex;gap:8px;margin:4px 0 12px}
.gate-built div{flex:1;background:var(--accent-soft);border-radius:12px;padding:10px 6px}
.gate-built b{display:block;font-family:'Secular One';font-size:24px;line-height:1.1;color:var(--accent-strong)}
.gate-built span{font-size:11px;color:var(--text-2)}
.gate-loss{background:#FFF4E5;border:1px solid #F4A52A;border-radius:12px;padding:10px 12px;
  font-size:12.5px!important;color:#7a4d00!important;margin:0 0 12px!important;line-height:1.5}
html.dark .gate-loss{background:#3a2a10;border-color:#8a6520;color:#f0d5a8!important}
.gate-fine{font-size:11.5px!important;color:var(--text-3)!important;margin:8px 0 0!important}
/* goal-gradient: near milestone instead of a distant total */
.journey{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:14px 16px;box-shadow:var(--e1);margin-bottom:14px}
.jr-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;font-size:14px}
.jr-head b{font-family:'Secular One';font-weight:400}
.jr-head span{font-size:12px;color:var(--text-3);font-weight:700}
.jr-track{display:flex;gap:4px}
.jr-step{flex:1;text-align:center;position:relative}
.jr-step i{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;width:26px;height:26px;margin:0 auto 5px;
  border-radius:50%;background:var(--surface-2);color:var(--text-3);font-style:normal;font-size:12px;font-weight:800;
  border:2px solid var(--border);transition:all var(--base)}
.jr-step.on i{background:var(--green-500,#5CB85C);border-color:var(--green-700,#3F8C3F);color:#fff}
.jr-step span{display:block;font-size:9.5px;color:var(--text-3);line-height:1.25}
.jr-step.on span{color:var(--text-2);font-weight:700}
.jr-step:not(:last-child)::after{content:'';position:absolute;top:13px;left:-50%;width:100%;height:2px;background:var(--border)}
.jr-step.on:not(:last-child)::after{background:var(--green-500,#5CB85C)}
.jr-next{font-size:12.5px;color:var(--text-2);margin:11px 0 0;text-align:center}
.jr-next b{color:var(--accent-strong)}
.goal-note{text-align:center;font-size:12.5px;color:var(--text-2);margin:-4px 0 14px}
.goal-note b{color:var(--accent-strong);font-size:14px}
/* smart defaults: ready-made quiz so the setup form is optional, not mandatory */
.quickstart{display:flex;align-items:center;gap:12px;background:var(--accent-soft);border:1.5px solid var(--accent);
  border-radius:var(--r-lg);padding:14px 16px;margin-bottom:10px}
.qs-txt{flex:1;min-width:0}
.qs-txt b{display:block;font-family:'Secular One';font-weight:400;font-size:15px}
.qs-txt span{display:block;font-size:11.5px;color:var(--text-2);margin-top:2px}
.quickstart .btn{flex:0 0 auto;padding:11px 18px;white-space:nowrap}
.qs-or{text-align:center;font-size:12px;color:var(--text-3);margin:0 0 12px}
.chip .rec{display:block;font-style:normal;font-size:8.5px;font-weight:700;opacity:.75;line-height:1;margin-top:2px}
.q-time-low{color:var(--coral-500);font-weight:800}
.credit{text-align:center;margin-top:18px;font-size:12px;color:var(--muted)}
.credit a{color:var(--muted);text-decoration:underline}
.legal-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin-top:16px;padding-top:14px;border-top:1px solid var(--border)}
.legal-links a{font-size:12.5px;font-weight:600;color:var(--text-2);text-decoration:none}
.legal-links a:hover{color:var(--accent-strong);text-decoration:underline}
.hero h1 svg{width:24px;height:24px;vertical-align:-4px;margin-inline-end:2px}
.pin-lg{width:46px;height:46px;margin:2px auto;color:var(--coral-500)}
.pin-lg svg{width:100%;height:100%}
.degrees{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.degree{display:flex;gap:10px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:9px 12px}
.degree .tag{font-family:'Secular One';font-weight:700;font-size:12px;color:#fff;background:var(--grad);border-radius:8px;padding:4px 8px;flex:0 0 auto}
.degree b{font-size:13.5px} .degree span{font-size:12px;color:var(--text-3);display:block}
.sec-title{font-family:'Secular One';font-weight:700;font-size:19px;margin:24px 0 4px}
.sec-sub{font-size:13px;color:var(--text-3);margin-bottom:12px}
.books{display:flex;flex-direction:column;gap:12px}
.book{display:flex;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:12px;box-shadow:var(--e2);text-decoration:none;color:inherit}
.book img{width:74px;height:96px;object-fit:cover;border-radius:8px;flex:0 0 auto;background:var(--surface-2)}
.book h4{font-family:'Secular One';font-size:16px;margin:2px 0}
.book p{font-size:12.5px;color:var(--text-2);line-height:1.45;margin:4px 0}
.book .price{font-family:'Secular One';font-weight:800;color:var(--accent-strong);font-size:17px}
.book .tag{display:inline-block;font-size:10.5px;font-weight:700;color:var(--accent-strong);background:var(--accent-soft);border-radius:var(--r-pill);padding:2px 8px;margin-bottom:4px}
.bundle{margin-top:14px;background:var(--grad);color:#fff;border-radius:var(--r-lg);padding:16px;box-shadow:var(--e2)}
.bundle h4{font-family:'Secular One';font-size:18px;margin:0 0 4px}
.bundle p{font-size:13px;opacity:.95;margin:0 0 10px}
.bundle .prices{display:flex;align-items:baseline;gap:10px;margin-bottom:12px}
.bundle .old{text-decoration:line-through;opacity:.7;font-size:15px}
.bundle .new{font-family:'Secular One';font-weight:800;font-size:28px}
.bundle .save{font-size:12px;font-weight:700;background:rgba(255,255,255,.25);border-radius:var(--r-pill);padding:3px 9px}
.bundle a{display:block;text-align:center;background:#fff;color:var(--accent-strong);font-weight:700;border-radius:var(--r-md);padding:12px;text-decoration:none}
.contact{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:8px}
.contact a{display:flex;align-items:center;gap:9px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:12px;text-decoration:none;color:var(--text);font-weight:700;font-size:13.5px;box-shadow:var(--e1)}
.contact a .em{font-size:20px}

/* ============ PROFILE / STATS ============ */
.prof-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px;box-shadow:var(--e2);text-align:center;margin-bottom:14px}
.prof-card .av{width:64px;height:64px;border-radius:50%;overflow:hidden;margin:0 auto 10px;border:2px solid var(--accent);display:flex;align-items:center;justify-content:center;font-size:28px;background:var(--surface-2)}
.prof-card .av img{width:100%;height:100%;object-fit:cover}
.prof-name{font-family:'Secular One';font-weight:700;font-size:18px}
.prof-email{font-size:12.5px;color:var(--text-3);margin-top:2px}
.google-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;width:100%;min-height:48px;border-radius:var(--r-md);background:#fff;color:#3c4043;font-weight:700;font-size:15px;border:1px solid #dadce0;box-shadow:var(--e1)}
.sync-note{font-size:12.5px;color:var(--text-3);margin-top:10px;line-height:1.5}
.ring-wrap{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px;box-shadow:var(--e2);margin-bottom:14px}
.ring{flex:0 0 auto}
.ring-txt{font-family:'Secular One';font-weight:800;font-size:20px}
.mini-stats{display:flex;gap:10px;flex:1}
.topic-prog{margin-bottom:9px}
.topic-prog .lab{display:flex;justify-content:space-between;font-size:12.5px;font-weight:600;margin-bottom:3px}
.topic-prog .lab span:last-child{color:var(--text-3)}
.tbar{height:8px;border-radius:var(--r-pill);background:var(--surface-2);overflow:hidden}
.tbar i{display:block;height:100%;border-radius:var(--r-pill);transition:width var(--slow) var(--ease)}
.signout{margin-top:8px;color:var(--danger);font-weight:700;font-size:13px}
.sync-pill{font-size:11px;font-weight:700;padding:3px 9px;border-radius:var(--r-pill);background:var(--accent-soft);color:var(--accent-strong)}

/* ============ LOGO + MOTION ============ */
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@keyframes popIn{0%{opacity:0;transform:scale(.82)}100%{opacity:1;transform:scale(1)}}
@keyframes fadeUp{0%{opacity:0;transform:translateY(10px)}100%{opacity:1;transform:translateY(0)}}
@keyframes barflow{0%{transform:translateX(120%)}100%{transform:translateX(-120%)}}
@keyframes countPop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.12)}100%{transform:scale(1);opacity:1}}
@keyframes bubble{0%{transform:translateY(0);opacity:0}20%{opacity:.7}100%{transform:translateY(-22px);opacity:0}}

.logo-mark{width:40px;height:40px;border-radius:12px;object-fit:cover;object-position:center 22%;border:2px solid var(--accent);box-shadow:var(--e1);background:#fff;animation:floaty 4.5s ease-in-out infinite;flex:0 0 auto}

/* branded splash (shown until React mounts) */
.splash{position:fixed;inset:0;z-index:100;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px}
.splash img{width:180px;max-width:62%;height:auto;animation:popIn .5s var(--ease) backwards,floaty 3.2s ease-in-out .5s infinite}
.splash-bar{width:150px;height:6px;border-radius:99px;background:var(--surface-2);overflow:hidden;position:relative}
.splash-bar i{position:absolute;inset:0;background:var(--grad);animation:barflow 1.1s ease-in-out infinite}

/* view + card + list entrances */
.view{animation:fadeUp .3s var(--ease)}
.card{animation:fadeUp .32s var(--ease) backwards}
.card:nth-child(1){animation-delay:.02s}.card:nth-child(2){animation-delay:.05s}.card:nth-child(3){animation-delay:.08s}
.card:nth-child(4){animation-delay:.11s}.card:nth-child(5){animation-delay:.14s}.card:nth-child(6){animation-delay:.17s}
.card:nth-child(7){animation-delay:.2s}.card:nth-child(8){animation-delay:.23s}.card:nth-child(n+9){animation-delay:.26s}
.card:nth-child(n+16){animation:none}
.opt{animation:fadeUp .26s var(--ease) backwards}
.opt:nth-child(2){animation-delay:.05s}.opt:nth-child(3){animation-delay:.1s}.opt:nth-child(4){animation-delay:.15s}
.result .big{animation:countPop .6s var(--ease) backwards}
.about-logo{display:block;margin:4px auto 8px;width:160px;max-width:62%;height:auto;animation:popIn .5s var(--ease) backwards}
.about-hero,.books,.bundle,.ring-wrap,.prof-card{animation:fadeUp .4s var(--ease) backwards}

/* tiny bubbles rising from the header logo */
.logo-wrap{position:relative}
.logo-wrap .bub{position:absolute;top:2px;width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:0}
.logo-wrap .bub.b1{left:8px;animation:bubble 2.6s ease-in-out infinite}
.logo-wrap .bub.b2{left:16px;animation:bubble 2.6s ease-in-out .9s infinite}
.logo-wrap .bub.b3{left:24px;animation:bubble 2.6s ease-in-out 1.7s infinite}

/* ============ v3: marker, pin, achievements, sounds, motion ============ */
/* #3 dark-mode marker -> purple so white term text stays readable */
html.dark .term .hl, html.dark .q-q .hl, html.dark .fc-term .hl{
  background:linear-gradient(180deg,transparent 52%, #7B4FB0 52%);
  color:#fff; border-radius:3px;
}

/* #2 pin button (replaces star). active = needs-review (coral) */
.ibtn.pin{color:#fff;background:var(--coral-500);border-color:var(--coral-700)}
.ibtn .pin-off{opacity:.45}

/* header: logo full (contain) + full name */
.logo-mark{object-fit:contain;object-position:center;background:#fff;padding:2px}

/* sound toggle reuses .icon-toggle */

/* #1/#4 achievements */
.ach-head{display:flex;align-items:baseline;gap:8px;margin:22px 0 4px}
.ach-head h2{font-family:'Secular One';font-weight:700;font-size:19px}
.ach-head .cnt{font-size:13px;color:var(--text-3);font-weight:700;margin-inline-start:auto}
/* Badges carry their own instructions: a locked badge states what to DO and how close
   you are. The old 4-up icon tiles hid that in a title tooltip, which never appears on a phone. */
.ach-grid{display:grid;grid-template-columns:1fr;gap:8px;margin-top:8px}
@media (min-width:430px){ .ach-grid{grid-template-columns:repeat(2,1fr)} }
.ach{border-radius:var(--r-md);background:var(--surface);border:1px solid var(--border);
  display:flex;align-items:flex-start;gap:10px;padding:11px 12px;text-align:start;box-shadow:var(--e1);position:relative}
.ach .em{font-size:25px;line-height:1.1;flex:0 0 auto;filter:grayscale(1);opacity:.38;transition:.2s}
.ach-txt{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.ach .t{font-size:13px;font-weight:800;line-height:1.2;color:var(--text-2);font-family:'Secular One';font-weight:400}
/* --text-3 only reaches 3.1:1 here; the instruction is the whole point of the card, so it
   uses --text-2 to clear the 4.5:1 AA floor for small text */
.ach .d{font-size:11.5px;line-height:1.4;color:var(--text-2)}
.ach-bar{display:block;height:5px;border-radius:99px;background:var(--surface-2);overflow:hidden;margin-top:5px}
.ach-bar i{display:block;height:100%;border-radius:99px;background:var(--accent);transition:width .45s var(--ease)}
.ach-n{font-size:10.5px;font-weight:700;color:var(--text-2);margin-top:2px}
.ach.on{background:linear-gradient(180deg,var(--accent-soft),var(--surface));border-color:var(--accent);padding-inline-end:26px}
.ach.on .em{filter:none;opacity:1;animation:popIn .4s var(--ease) backwards}
.ach.on .t{color:var(--text)}
.ach.on .d{color:var(--text-2)}
.ach.on::after{content:"✓";position:absolute;top:8px;left:9px;font-size:13px;font-weight:800;color:var(--green-700)}

/* performance grid */
.perf{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.perf .stat-box b{font-size:20px}

/* achievement unlock toast */
.ach-toast{position:fixed;left:50%;bottom:88px;transform:translateX(-50%);z-index:60;background:var(--surface);
  border:1.5px solid var(--accent);border-radius:var(--r-lg);padding:11px 16px;box-shadow:var(--e3);display:flex;align-items:center;gap:11px;animation:toastIn .45s var(--ease)}
.ach-toast .em{font-size:30px;animation:popIn .5s var(--ease)}
.ach-toast b{font-family:'Secular One';font-size:14px;display:block} .ach-toast span{font-size:12px;color:var(--text-3)}
@keyframes toastIn{0%{opacity:0;transform:translate(-50%,24px)}100%{opacity:1;transform:translate(-50%,0)}}

/* #6 extra motion */
@keyframes flame{0%,100%{transform:scale(1)}50%{transform:scale(1.18) rotate(-4deg)}}
.streak .fl{display:inline-block;animation:flame 1.6s ease-in-out infinite}
@media (hover:hover){
  .card{transition:transform var(--fast),box-shadow var(--fast)}
  .card:hover{transform:translateY(-2px);box-shadow:var(--e3)}
  .ach:hover{transform:translateY(-2px)}
  .book:hover{transform:translateY(-2px);box-shadow:var(--e3);transition:.15s}
  .chip:hover{filter:brightness(.98)}
}
.btn{transition:transform var(--fast),filter var(--fast)}
.btn:active{transform:scale(.96)}
.tab:active{transform:scale(.9)}
/* confetti burst */
.confetti{position:fixed;inset:0;pointer-events:none;z-index:55;overflow:hidden}
.confetti i{position:absolute;top:-12px;width:9px;height:14px;border-radius:2px;animation:fall linear forwards}
@keyframes fall{0%{transform:translateY(-10px) rotate(0);opacity:1}100%{transform:translateY(105vh) rotate(540deg);opacity:.9}}

/* tappable topic rows in profile */
.topic-prog.click{cursor:pointer;border-radius:var(--r-sm);padding:6px 8px;margin:2px -8px;transition:background var(--fast)}
.topic-prog.click:active{background:var(--surface-2)}
@media (hover:hover){ .topic-prog.click:hover{background:var(--surface-2)} }

/* ============ v4: knowledge graph overlay, micro-assessment, SRS ============ */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.overlay{position:fixed;inset:0;z-index:70;background:rgba(10,15,22,.55);display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .2s}
@media(min-width:560px){.overlay{align-items:center}}
.sheet-card{background:var(--bg);width:100%;max-width:520px;max-height:90vh;overflow:auto;border-radius:22px 22px 0 0;padding:16px 16px 30px;box-shadow:var(--e3);animation:toastIn .3s var(--ease);position:relative}
@media(min-width:560px){.sheet-card{border-radius:22px}}
.od-x{position:absolute;top:12px;left:12px;width:36px;height:36px;border-radius:50%;background:var(--surface-2);font-size:20px;color:var(--text-2);display:flex;align-items:center;justify-content:center}
.od-term{font-family:'Assistant',sans-serif;font-weight:800;font-size:24px;line-height:1.5;margin:2px 40px 0 0}
.mnk{font-family:'Assistant',sans-serif}
.od-def{font-size:15px;line-height:1.65;color:var(--text);margin:8px 0}
.od-sec{font-family:'Secular One';font-weight:700;font-size:13.5px;margin:18px 0 4px;color:var(--text-2)}

/* relationship map (radial) */
.gmap{position:relative;height:300px;margin:6px 0 2px}
.gmap svg{position:absolute;inset:0;width:100%;height:100%}
.gnode{position:absolute;transform:translate(-50%,-50%);max-width:130px;font-size:11.5px;font-weight:700;padding:6px 10px;border-radius:var(--r-pill);background:var(--surface);border:1px solid var(--accent);color:var(--text);box-shadow:var(--e1);text-align:center;line-height:1.15;cursor:pointer}
.gnode:active{transform:translate(-50%,-50%) scale(.95)}
.gcenter{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--grad);color:#fff;border:none;font-family:'Secular One';font-weight:800;font-size:14px;padding:12px 16px;border-radius:18px;max-width:170px;box-shadow:var(--e2);cursor:pointer;text-align:center}

/* SRS rating buttons */
.rate-row{display:grid;grid-template-columns:repeat(4,1fr);gap:7px;margin-top:14px}
.rate{padding:11px 4px;border-radius:var(--r-md);font-weight:700;font-size:13px;border:1.5px solid var(--border);background:var(--surface);color:var(--text);display:flex;flex-direction:column;gap:1px;align-items:center}
.rate small{font-size:9px;color:var(--text-3);font-weight:600}
.rate:active{transform:scale(.95)}
.rate.again{border-color:var(--coral-500);color:var(--coral-700)}
.rate.hard{border-color:#D99A2B;color:#B8801E}
.rate.good{border-color:var(--blue-500);color:var(--blue-700)}
.rate.easy{border-color:var(--green-500);color:var(--green-700)}
.term.link{cursor:pointer}
.term.link::after{content:" 🕸️";font-size:11px;opacity:.5}

/* ============ PWA install card ============ */
.install-card{display:flex;align-items:center;gap:11px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);padding:11px 12px;margin:0 0 14px;box-shadow:var(--e2);position:relative;
  background-image:linear-gradient(135deg,color-mix(in srgb,var(--blue-50) 60%,var(--surface)),var(--surface))}
html.dark .install-card{background-image:none}
.install-icon{width:46px;height:46px;border-radius:12px;flex:0 0 auto;box-shadow:var(--e1)}
.install-txt{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.25}
.install-txt b{font-family:'Secular One';font-weight:700;font-size:14.5px}
.install-txt span{font-size:11.5px;color:var(--text-2)}
.install-go{flex:0 0 auto;display:inline-flex;align-items:center;gap:5px;background:var(--grad);color:#fff;
  font-weight:800;font-size:13.5px;padding:9px 14px;border-radius:var(--r-pill);box-shadow:var(--e2);
  transition:transform var(--fast)}
.install-go:active{transform:scale(.95)}
.install-close{position:absolute;top:6px;inset-inline-start:8px;width:22px;height:22px;border-radius:50%;
  font-size:15px;color:var(--text-3);line-height:1;display:flex;align-items:center;justify-content:center}
@keyframes ig-bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-2px)}}
.install-go svg{animation:ig-bob 1.4s ease-in-out infinite}

/* permanent install block in About */
.install-about{display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px 16px;margin:18px 0;box-shadow:var(--e2);
  background-image:linear-gradient(135deg,color-mix(in srgb,var(--blue-50) 55%,var(--surface)),var(--surface))}
html.dark .install-about{background-image:none}
.install-about img{width:56px;height:56px;border-radius:14px;box-shadow:var(--e1)}
.install-about h4{font-family:'Secular One';font-weight:700;font-size:16px;margin:6px 0 0}
.install-about p{font-size:13px;color:var(--text-2);margin:0 0 8px;max-width:300px}
.install-btn-about{min-width:200px}
.install-done{font-size:13.5px;font-weight:700;color:var(--success);background:var(--green-50);
  border:1px solid var(--green-100);border-radius:var(--r-pill);padding:9px 16px}
html.dark .install-done{background:#15301c;border-color:#1f4429}

/* iOS install instructions sheet */
.ios-sheet{text-align:center;padding-top:24px}
.ios-sheet h3{font-family:'Secular One';font-weight:800;font-size:19px;margin:10px 0 14px}
.ios-sheet ol{text-align:right;margin:0 0 16px;padding-inline-start:22px;display:flex;flex-direction:column;gap:11px}
.ios-sheet li{font-size:14.5px;line-height:1.55;color:var(--text)}
.ios-sheet li b{color:var(--accent-strong)}

/* ============ crossword tab (embedded game) ============ */
.tab.on.x{color:#7B4FB0} .tab.on.x .pipe{background:#7B4FB0}
.cw-wrap{margin:0 -16px 0} /* undo the .scroll side padding so the game fills the app width */
.cw-frame{display:block;width:100%;height:calc(100vh - 158px);height:calc(100dvh - 158px);min-height:500px;border:none;background:var(--bg)}