/* MedBoard IQ — تصميم وبرمجة العيسى هوست للخدمات البرمجية */
:root{
  --navy:#0B2545; --navy-2:#13315C; --teal:#0FA3A3; --teal-d:#0B8484; --teal-l:#E3F6F5;
  --bg:#F4F7FB; --card:#FFFFFF; --ink:#0F1E33; --muted:#5B6B7F; --line:#E2E8F0; --line-2:#CBD5E1;
  --ok:#16A34A; --ok-l:#DCFCE7; --bad:#DC2626; --bad-l:#FEE2E2; --warn:#D97706; --warn-l:#FEF3C7; --flag:#F59E0B;
  --r:14px; --r-s:10px; --sh:0 1px 2px rgba(15,30,51,.06),0 4px 16px rgba(15,30,51,.06); --sh-l:0 10px 40px rgba(11,37,69,.14);
  --font:"IBM Plex Sans Arabic","Inter",system-ui,-apple-system,"Segoe UI",Tahoma,sans-serif;
  --font-en:"Inter","IBM Plex Sans Arabic",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;font-size:15px}
a{color:var(--teal-d);text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
img{max-width:100%}
.en{font-family:var(--font-en);direction:ltr;text-align:left}
.boot{min-height:100vh;display:grid;place-items:center}
.boot img{animation:pulse 1.2s ease-in-out infinite}
@keyframes pulse{50%{opacity:.4;transform:scale(.92)}}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)} .small{font-size:13px} .center{text-align:center}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap} .grow{flex:1}
.hidden{display:none!important}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--r-s);padding:10px 18px;font-weight:600;cursor:pointer;transition:.15s;background:var(--card);border-color:var(--line-2);white-space:nowrap;font-size:14.5px}
.btn:hover{border-color:var(--navy)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn-primary{background:var(--teal);border-color:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-d);border-color:var(--teal-d)}
.btn-navy{background:var(--navy);border-color:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2)}
.btn-danger{background:var(--bad);border-color:var(--bad);color:#fff}
.btn-ghost{background:transparent;border-color:transparent}
.btn-ghost:hover{background:rgba(11,37,69,.06);border-color:transparent}
.btn-lg{padding:14px 26px;font-size:16px;border-radius:12px}
.btn-sm{padding:6px 12px;font-size:13px}
.icon{width:18px;height:18px;flex:none}

/* forms */
label.f{display:block;margin-bottom:14px}
label.f>span{display:block;font-weight:600;font-size:13.5px;margin-bottom:6px}
.input,select.input,textarea.input{width:100%;border:1px solid var(--line-2);border-radius:var(--r-s);padding:10px 12px;background:#fff;outline:none;transition:.15s}
.input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(15,163,163,.15)}
textarea.input{min-height:90px;resize:vertical}
.err{background:var(--bad-l);color:#991B1B;padding:10px 12px;border-radius:var(--r-s);font-size:14px;margin-bottom:12px}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:22px}
.card h3{margin:0 0 4px;font-size:17px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:99px;font-size:12.5px;font-weight:600;background:var(--teal-l);color:var(--teal-d)}
.badge.navy{background:#E5EBF3;color:var(--navy)} .badge.ok{background:var(--ok-l);color:#166534} .badge.bad{background:var(--bad-l);color:#991B1B} .badge.warn{background:var(--warn-l);color:#92400E}

/* ---------- top nav ---------- */
.nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav .container{display:flex;align-items:center;gap:18px;height:68px}
.nav .logo img{height:40px;display:block}
.nav .links{display:flex;gap:4px;margin-inline-start:12px}
.nav .links a{color:var(--ink);padding:8px 12px;border-radius:8px;font-weight:500;font-size:14.5px}
.nav .links a:hover,.nav .links a.on{background:rgba(11,37,69,.06)}
.nav .sp{flex:1}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:700}
@media(max-width:820px){.nav .links{display:none}.nav .logo img{height:34px}}

/* ---------- landing ---------- */
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(15,163,163,.18),transparent 60%),linear-gradient(180deg,#fff, var(--bg));padding:64px 0 56px;overflow:hidden}
.hero .container{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:46px;line-height:1.25;margin:16px 0 14px;color:var(--navy);letter-spacing:-.3px}
.hero h1 em{font-style:normal;color:var(--teal)}
.hero p.lead{font-size:18px;color:var(--muted);margin:0 0 26px;max-width:560px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.hero .trust{display:flex;gap:22px;margin-top:28px;color:var(--muted);font-size:14px;flex-wrap:wrap}
.hero .trust b{color:var(--navy);font-size:20px;display:block;font-family:var(--font-en)}
.mock-preview{background:#fff;border-radius:18px;box-shadow:var(--sh-l);border:1px solid var(--line);overflow:hidden;transform:rotate(-1.2deg)}
.mock-preview .bar{background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;font-size:13px}
.mock-preview .timer{font-family:var(--font-en);font-weight:700;font-size:18px;background:rgba(255,255,255,.12);padding:4px 12px;border-radius:8px;letter-spacing:1px}
.mock-preview .body{padding:20px}
.mock-preview .q{font-family:var(--font-en);direction:ltr;text-align:left;font-size:14px;margin-bottom:14px;color:var(--ink)}
.mock-preview .opt{font-family:var(--font-en);direction:ltr;text-align:left;border:1px solid var(--line);border-radius:10px;padding:9px 12px;margin-bottom:8px;font-size:13.5px;display:flex;gap:10px;align-items:center}
.mock-preview .opt i{font-style:normal;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;background:#EEF2F7;font-weight:700;font-size:12px;flex:none}
.mock-preview .opt.sel{border-color:var(--teal);background:var(--teal-l)} .mock-preview .opt.sel i{background:var(--teal);color:#fff}
.mock-preview .grid{display:grid;grid-template-columns:repeat(10,1fr);gap:5px;margin-top:14px}
.mock-preview .grid span{height:18px;border-radius:4px;background:#EEF2F7}
.mock-preview .grid span.a{background:var(--teal)} .mock-preview .grid span.f{background:var(--flag)} .mock-preview .grid span.c{outline:2px solid var(--navy)}
@media(max-width:920px){.hero .container{grid-template-columns:1fr}.hero h1{font-size:34px}.mock-preview{transform:none}}

section.s{padding:72px 0}
section.s.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.s-head{text-align:center;max-width:680px;margin:0 auto 40px}
.s-head h2{font-size:32px;color:var(--navy);margin:10px 0 8px;line-height:1.35}
.s-head p{color:var(--muted);margin:0;font-size:16.5px}
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:.2s}
.feature:hover{transform:translateY(-3px);box-shadow:var(--sh-l)}
.feature .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--teal-l);color:var(--teal-d);margin-bottom:14px}
.feature h3{margin:0 0 6px;font-size:17.5px;color:var(--navy)}
.feature p{margin:0;color:var(--muted);font-size:14.5px}
@media(max-width:920px){.features{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.features{grid-template-columns:1fr}}
.specs{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px}
.spec{display:flex;align-items:center;gap:12px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.spec .dot{width:38px;height:38px;border-radius:10px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:700;font-family:var(--font-en);font-size:13px;flex:none}
.spec b{display:block;font-size:14.5px}
.spec small{color:var(--muted);font-family:var(--font-en)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:st}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;position:relative}
.step:before{counter-increment:st;content:counter(st);position:absolute;top:-16px;inset-inline-start:22px;width:34px;height:34px;border-radius:50%;background:var(--teal);color:#fff;display:grid;place-items:center;font-weight:700;font-family:var(--font-en)}
.step h3{margin:6px 0 6px;color:var(--navy)} .step p{margin:0;color:var(--muted)}
@media(max-width:800px){.steps{grid-template-columns:1fr}}
.rules{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.rule{background:var(--navy);color:#fff;border-radius:var(--r);padding:22px;text-align:center}
.rule b{display:block;font-size:34px;font-family:var(--font-en);color:#5EEAD4;line-height:1.2}
.rule span{opacity:.85;font-size:14px}
@media(max-width:800px){.rules{grid-template-columns:1fr 1fr}}
.cta-band{background:linear-gradient(120deg,var(--navy),#0E4A6B 60%,var(--teal));color:#fff;border-radius:22px;padding:46px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{margin:0 0 6px;font-size:28px} .cta-band p{margin:0;opacity:.85}
.disclaimer{background:var(--warn-l);color:#78350F;border-radius:12px;padding:12px 16px;font-size:13.5px;margin-top:22px}

/* footer */
.footer{background:var(--navy);color:#C9D6E3;padding:44px 0 22px;margin-top:0}
.footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.footer img{height:44px}
.footer h4{color:#fff;margin:0 0 10px;font-size:15px}
.footer a{color:#C9D6E3;display:block;padding:3px 0;font-size:14px}
.footer a:hover{color:#5EEAD4}
.footer .credit{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13.5px}
.footer .credit b{color:#fff}
.footer .credit a{display:inline;color:#5EEAD4;font-family:var(--font-en);font-weight:600}
@media(max-width:800px){.footer .cols{grid-template-columns:1fr}}
.mini-credit{text-align:center;color:var(--muted);font-size:12.5px;padding:22px 0 26px}
.mini-credit a{color:var(--teal-d);font-family:var(--font-en);font-weight:600}

/* ---------- auth ---------- */
.auth-wrap{min-height:calc(100vh - 68px);display:grid;grid-template-columns:1fr 1fr}
.auth-side{background:linear-gradient(160deg,var(--navy),#0E4A6B);color:#fff;padding:60px;display:flex;flex-direction:column;justify-content:center}
.auth-side h2{font-size:30px;margin:20px 0 10px;line-height:1.4}
.auth-side ul{padding:0;margin:20px 0 0;list-style:none}
.auth-side li{padding:7px 0;display:flex;gap:10px;align-items:center;opacity:.9}
.auth-main{display:grid;place-items:center;padding:40px 20px}
.auth-card{width:100%;max-width:420px}
.auth-card h1{font-size:26px;margin:0 0 4px;color:var(--navy)}
@media(max-width:860px){.auth-wrap{grid-template-columns:1fr}.auth-side{display:none}}

/* ---------- dashboard ---------- */
.page{padding:28px 0 10px}
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap}
.page-head h1{margin:0;font-size:26px;color:var(--navy)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px}
.stat span{color:var(--muted);font-size:13.5px}
.stat b{display:block;font-size:28px;font-family:var(--font-en);color:var(--navy);line-height:1.3}
.stat b small{font-size:15px;color:var(--muted);font-weight:600}
@media(max-width:860px){.stats{grid-template-columns:1fr 1fr}}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid3{display:grid;grid-template-columns:2fr 1fr;gap:18px}
@media(max-width:900px){.grid2,.grid3{grid-template-columns:1fr}}
.start-card{position:relative;overflow:hidden}
.start-card.mock{background:linear-gradient(135deg,var(--navy),#124A73);color:#fff;border:0}
.start-card.mock .muted{color:#B9CADB}
.start-card.mock select.input{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.25)}
.start-card.mock select.input option{color:var(--ink)}
.start-card .chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.start-card .chips span{background:rgba(255,255,255,.12);padding:4px 12px;border-radius:99px;font-size:13px}
.resume{background:var(--warn-l);border:1px solid #FCD34D;border-radius:var(--r);padding:16px 20px;display:flex;align-items:center;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.resume b{color:#78350F}
table.t{width:100%;border-collapse:collapse;font-size:14px}
table.t th{text-align:start;color:var(--muted);font-weight:600;font-size:13px;padding:10px 12px;border-bottom:1px solid var(--line);white-space:nowrap}
table.t td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
table.t tr:last-child td{border-bottom:0}
table.t tr.click{cursor:pointer} table.t tr.click:hover td{background:#F8FAFC}
.tbl-wrap{overflow-x:auto}
.bar-row{margin-bottom:12px}
.bar-row .lbl{display:flex;justify-content:space-between;font-size:13.5px;margin-bottom:5px;gap:10px}
.bar-row .lbl span:last-child{font-family:var(--font-en);font-weight:600}
.bar{height:8px;background:#EEF2F7;border-radius:99px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:var(--teal)}
.bar i.lo{background:var(--bad)} .bar i.mid{background:var(--warn)}
.empty{text-align:center;color:var(--muted);padding:30px 10px}
.empty svg{opacity:.4;margin-bottom:8px}

/* ---------- exam ---------- */
body.exam-mode{background:#EEF2F7;user-select:none;-webkit-user-select:none}
.ex-top{position:sticky;top:0;z-index:30;background:var(--navy);color:#fff}
.ex-top .container{max-width:1320px;display:flex;align-items:center;gap:16px;height:62px}
.ex-top img{height:30px}
.ex-top .meta{font-size:13.5px;opacity:.85}
.ex-timer{font-family:var(--font-en);font-weight:800;font-size:22px;letter-spacing:1.5px;background:rgba(255,255,255,.1);padding:5px 16px;border-radius:10px;display:flex;align-items:center;gap:8px;min-width:150px;justify-content:center;direction:ltr}
.ex-timer.warn{background:var(--warn);} .ex-timer.danger{background:var(--bad);animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:.75}}
.ex-progress{height:4px;background:rgba(255,255,255,.15)} .ex-progress i{display:block;height:100%;background:#5EEAD4;transition:width .3s}
.ex-body{max-width:1320px;margin:0 auto;padding:22px 20px 40px;display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start}
@media(max-width:980px){.ex-body{grid-template-columns:1fr}}
.qcard{background:#fff;border-radius:16px;border:1px solid var(--line);box-shadow:var(--sh);overflow:hidden}
.qcard .qh{display:flex;align-items:center;gap:12px;padding:16px 22px;border-bottom:1px solid var(--line);background:#FAFBFD}
.qcard .qh b{font-size:15.5px;color:var(--navy)}
.qcard .qb{padding:26px 28px 10px}
.stem{font-family:var(--font-en);direction:ltr;text-align:left;font-size:17px;line-height:1.75;white-space:pre-line;margin-bottom:22px;color:#0F1E33}
.opts{direction:ltr}
.opt{display:flex;gap:14px;align-items:flex-start;width:100%;text-align:left;border:1.5px solid var(--line);border-radius:12px;padding:13px 16px;margin-bottom:10px;background:#fff;cursor:pointer;font-family:var(--font-en);font-size:15.5px;transition:.12s}
.opt:hover{border-color:var(--line-2);background:#FAFBFD}
.opt .L{width:30px;height:30px;border-radius:50%;background:#EEF2F7;display:grid;place-items:center;font-weight:700;font-size:13.5px;flex:none;color:var(--navy)}
.opt .tx{padding-top:3px}
.opt.sel{border-color:var(--teal);background:var(--teal-l)} .opt.sel .L{background:var(--teal);color:#fff}
.opt.right{border-color:var(--ok);background:var(--ok-l)} .opt.right .L{background:var(--ok);color:#fff}
.opt.wrong{border-color:var(--bad);background:var(--bad-l)} .opt.wrong .L{background:var(--bad);color:#fff}
.opt:disabled{cursor:default}
.expl{direction:ltr;text-align:left;font-family:var(--font-en);background:#F1F7FF;border:1px solid #CFE0F5;border-radius:12px;padding:16px 18px;margin:8px 0 18px;font-size:14.5px}
.expl h4{margin:0 0 6px;font-size:14px;color:var(--navy)} .expl .ref{color:var(--muted);font-size:13px;margin-top:8px}
.qf{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 22px 20px}
.flag-btn.on{background:#FFF7E6;border-color:var(--flag);color:#92400E}
.nav-card{background:#fff;border-radius:16px;border:1px solid var(--line);box-shadow:var(--sh);padding:18px;position:sticky;top:84px}
.nav-card h4{margin:0 0 10px;font-size:15px;color:var(--navy)}
.qgrid{display:grid;grid-template-columns:repeat(8,1fr);gap:6px;max-height:340px;overflow:auto;padding:2px;direction:ltr}
.qgrid button{height:34px;border-radius:8px;border:1px solid var(--line);background:#F8FAFC;font-family:var(--font-en);font-size:12.5px;font-weight:600;cursor:pointer;position:relative;padding:0}
.qgrid button.a{background:var(--teal);border-color:var(--teal);color:#fff}
.qgrid button.r{background:var(--ok);border-color:var(--ok);color:#fff} .qgrid button.w{background:var(--bad);border-color:var(--bad);color:#fff}
.qgrid button.f:after{content:"";position:absolute;top:-3px;right:-3px;width:10px;height:10px;border-radius:50%;background:var(--flag);border:2px solid #fff}
.qgrid button.cur{outline:2.5px solid var(--navy);outline-offset:1px}
.legend{display:flex;flex-wrap:wrap;gap:10px 14px;margin:14px 0 4px;font-size:12.5px;color:var(--muted)}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;vertical-align:-1px;margin-inline-end:5px}
.counts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:12px 0}
.counts div{background:#F8FAFC;border-radius:10px;padding:8px;text-align:center;font-size:12px;color:var(--muted)}
.counts b{display:block;font-family:var(--font-en);font-size:18px;color:var(--navy)}
.kbd{font-family:var(--font-en);font-size:11.5px;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:5px;padding:0 5px;background:#fff}
.timeup{position:fixed;inset:0;background:rgba(11,37,69,.86);z-index:100;display:grid;place-items:center;color:#fff;text-align:center}
.timeup h2{font-size:30px;margin:10px 0}

/* ---------- result ---------- */
.res-hero{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center}
.ring{position:relative;width:170px;height:170px}
.ring svg{transform:rotate(-90deg)}
.ring .v{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.ring .v b{font-family:var(--font-en);font-size:38px;color:var(--navy);line-height:1}
.ring .v small{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.res-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:16px}
.res-stats div{background:#F8FAFC;border-radius:12px;padding:12px;text-align:center}
.res-stats b{display:block;font-family:var(--font-en);font-size:20px;color:var(--navy)}
.res-stats span{font-size:12.5px;color:var(--muted)}
@media(max-width:700px){.res-hero{grid-template-columns:1fr;justify-items:center;text-align:center}.res-stats{grid-template-columns:1fr 1fr}}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.tabs button{border:1px solid var(--line);background:#fff;border-radius:99px;padding:6px 14px;cursor:pointer;font-size:13.5px;font-weight:500}
.tabs button.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.rv{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:#fff;overflow:hidden}
.rv .rh{display:flex;align-items:center;gap:10px;padding:12px 18px;background:#FAFBFD;border-bottom:1px solid var(--line);font-size:14px}
.rv .rb{padding:18px}
.rv .stem{font-size:15.5px;margin-bottom:14px}
.rv .opt{font-size:14.5px;padding:10px 14px;cursor:default}

/* ---------- admin ---------- */
.admin{display:grid;grid-template-columns:230px 1fr;gap:22px;padding:24px 0}
.side{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:10px;position:sticky;top:88px;align-self:start}
.side a{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:9px;color:var(--ink);font-weight:500;font-size:14.5px}
.side a:hover{background:var(--bg)} .side a.on{background:var(--navy);color:#fff}
@media(max-width:900px){.admin{grid-template-columns:1fr}.side{position:static;display:flex;overflow-x:auto}.side a{white-space:nowrap}}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.toolbar .input{width:auto;min-width:160px}
.qrow-stem{font-family:var(--font-en);direction:ltr;text-align:left;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:520px;font-size:13.5px}
.pager{display:flex;gap:6px;justify-content:center;margin-top:14px;align-items:center}
.drop{display:block;border:2px dashed var(--line-2);border-radius:16px;padding:40px 20px;text-align:center;background:#FAFBFD;cursor:pointer;transition:.15s}
.drop:hover,.drop.over{border-color:var(--teal);background:var(--teal-l)}
.opt-edit{display:flex;gap:10px;align-items:center;margin-bottom:8px}
.opt-edit input[type=radio]{width:18px;height:18px;accent-color:var(--ok);flex:none}
.opt-edit .L{width:28px;font-weight:700;font-family:var(--font-en);text-align:center;flex:none}
.switch{display:flex;align-items:center;gap:10px;cursor:pointer}
.switch input{width:18px;height:18px;accent-color:var(--teal)}
.mini-bars .bar-row .lbl{font-size:13px}

/* ---------- modal & toast ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(11,37,69,.5);z-index:90;display:grid;place-items:center;padding:18px;animation:fade .15s}
.modal{background:#fff;border-radius:18px;max-width:560px;width:100%;max-height:92vh;overflow:auto;box-shadow:var(--sh-l);animation:pop .18s}
.modal.wide{max-width:780px}
.modal .mh{padding:20px 24px 0;display:flex;align-items:center;justify-content:space-between}
.modal .mh h3{margin:0;color:var(--navy);font-size:19px}
.modal .mb{padding:16px 24px}
.modal .mf{padding:0 24px 22px;display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}
@keyframes fade{from{opacity:0}} @keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}}
#toasts{position:fixed;bottom:22px;left:50%;transform:translateX(-50%);z-index:120;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{background:var(--navy);color:#fff;padding:11px 18px;border-radius:12px;box-shadow:var(--sh-l);font-size:14.5px;animation:pop .2s}
.toast.bad{background:var(--bad)} .toast.ok{background:var(--ok)}
.rules-list{list-style:none;padding:0;margin:0}
.rules-list li{display:flex;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.rules-list li:last-child{border:0}
.rules-list .n{width:28px;height:28px;border-radius:8px;background:var(--teal-l);color:var(--teal-d);display:grid;place-items:center;flex:none}
@media(max-width:600px){.hide-sm{display:none!important}}
@media print{.nav,.mini-credit,.tabs,.page-head .row{display:none!important}body{background:#fff}.card{box-shadow:none}}
.topic-cols{display:grid;grid-template-columns:1fr 1fr;column-gap:36px}
@media(max-width:700px){.topic-cols{grid-template-columns:1fr}}
@media(max-width:640px){
  .ex-top .meta{display:none}
  .ex-top .container{justify-content:space-between;gap:10px;height:58px}
  .ex-timer{font-size:18px;min-width:0;padding:5px 10px}
  .qcard .qb{padding:20px 18px 6px} .qcard .qh{padding:12px 16px} .qf{padding:12px 16px 16px}
  .stem{font-size:16px} .opt{font-size:15px;padding:11px 12px}
  .page-head h1{font-size:22px}
}

/* ===== Phase 2 ===== */
.btn-wa{background:#25D366;border-color:#25D366;color:#fff}.btn-wa:hover{background:#1EBE5A;border-color:#1EBE5A}
.contact-box{display:flex;gap:16px;align-items:center;flex-wrap:wrap;background:linear-gradient(120deg,#F0FBFA,#fff);border:1px solid #BFE9E6;border-radius:16px;padding:18px 20px}
.contact-box .cb-ic{width:52px;height:52px;border-radius:14px;background:var(--teal);color:#fff;display:grid;place-items:center;flex:none}
.contact-box .cb-num{font-size:26px;font-weight:800;color:var(--navy);letter-spacing:1px;line-height:1.3;text-align:right}
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.plans.compact{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.plan{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:4px}
.plan.hot{border:2px solid var(--teal);box-shadow:var(--sh-l)}
.plan .badge{align-self:flex-start}
.plan h3{margin:8px 0 0;color:var(--navy);font-size:17px}
.plan .price{font-size:28px;font-weight:800;color:var(--navy);text-align:right}
.plan .price small{font-size:14px;color:var(--muted);font-weight:600}
.plan ul{list-style:none;padding:0;margin:10px 0 0;font-size:13.5px}
.plan li{display:flex;gap:6px;align-items:center;padding:3px 0;color:var(--muted)} .plan li svg{color:var(--ok)}
.plans.compact .plan{padding:14px} .plans.compact .plan ul{display:none} .plans.compact .price{font-size:22px}
@media(max-width:900px){.plans{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.plans{grid-template-columns:1fr}}
.lock-card{background:#fff;border:2px solid #FCD34D;border-radius:18px;padding:24px;margin-bottom:18px;box-shadow:var(--sh)}
.lock-card h2{margin:0 0 4px;color:var(--navy);font-size:22px} .lock-card p{margin:0 0 16px;color:var(--muted)}
.lock-card .lk{width:58px;height:58px;border-radius:16px;background:var(--warn-l);color:var(--warn);display:grid;place-items:center;flex:none}
.is-locked{position:relative} .is-locked:after{content:"";position:absolute;inset:0;background:rgba(244,247,251,.35);border-radius:inherit;pointer-events:none}
.study{margin-bottom:18px}
.study .st-ic{width:52px;height:52px;border-radius:14px;background:var(--teal-l);color:var(--teal-d);display:grid;place-items:center;flex:none}
.study-grid{display:grid;grid-template-columns:.8fr 1fr 1fr 1fr;gap:12px}
.sg{background:#F8FAFC;border-radius:14px;padding:14px;display:flex;flex-direction:column;gap:8px}
.sg .lbl{display:flex;justify-content:space-between;align-items:center;font-size:13.5px;color:var(--muted);gap:6px}
.sg .lbl b{color:var(--navy);font-size:17px}
.sg.countdown{background:var(--navy);color:#fff;justify-content:center;text-align:center}
.sg.countdown b{font-size:40px;line-height:1;color:#5EEAD4} .sg.countdown span{font-size:13px;opacity:.85}
.week{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;height:58px;direction:ltr}
.week div{display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:3px;height:100%}
.week i{display:block;width:100%;max-width:18px;border-radius:4px;background:#E2E8F0}
.week i.part{background:#7DD3CF} .week i.full{background:var(--teal)}
.week small{font-size:10px;color:var(--muted);line-height:1}
.weak-tip{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:12px;background:var(--bad-l);color:#7F1D1D;border-radius:12px;padding:10px 14px;font-size:14px}
@media(max-width:900px){.study-grid{grid-template-columns:1fr 1fr}}
.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.lib-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;color:var(--ink);display:flex;flex-direction:column;gap:6px;transition:.15s}
.lib-card:hover{box-shadow:var(--sh-l);transform:translateY(-2px)}
.lib-card .badge{align-self:flex-start} .lib-card h3{margin:4px 0 0;color:var(--navy);font-size:16.5px} .lib-card p{margin:0;color:var(--muted);font-size:13.5px}
.article h1{color:var(--navy);margin:10px 0 6px;font-size:26px}
.md h3{color:var(--teal-d);font-size:16px;margin:20px 0 6px} .md ul{margin:0;padding-left:22px} .md li{margin:4px 0} .md p{margin:8px 0}
.calc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.calc h3{margin:0 0 12px;color:var(--navy);font-size:15.5px;display:flex;gap:6px;align-items:center}
.calc label.f{margin-bottom:10px} .calc label.f>span{font-weight:500;color:var(--muted);font-size:12.5px}
.calc-out{background:var(--navy);color:#fff;border-radius:12px;padding:12px 14px;min-height:62px;display:flex;flex-direction:column;justify-content:center}
.calc-out b{font-size:20px;color:#5EEAD4} .calc-out span{font-size:13px;opacity:.85} .calc-out .muted{color:#B9CADB}
.plan-pick{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.plan-pick label{display:flex;gap:10px;align-items:center;border:1.5px solid var(--line);border-radius:12px;padding:10px 12px;cursor:pointer}
.plan-pick label:has(input:checked){border-color:var(--teal);background:var(--teal-l)}
.plan-pick input{accent-color:var(--teal);width:17px;height:17px}
.plan-pick b{display:block;font-size:14px} .plan-pick small{color:var(--muted)}
@media(max-width:820px){
  .nav .container{flex-wrap:wrap;height:auto;padding-top:10px;padding-bottom:4px;gap:8px 12px}
  .nav .links{display:flex!important;order:3;width:100%;margin:0;overflow-x:auto;padding-bottom:6px}
  .nav .links a{white-space:nowrap;font-size:14px;padding:6px 10px}
}
.grid2>*,.grid3>*,.admin>*,.ex-body>*{min-width:0}
.side a .pend{margin-inline-start:auto;background:var(--bad);color:#fff;border-radius:99px;font-size:12px;font-weight:700;min-width:22px;height:22px;display:grid;place-items:center;padding:0 6px;font-family:var(--font-en)}
table.t td .badge,table.t td.small{white-space:nowrap}