:root{
  --navy:#0b1d39;--navy2:#102f59;--blue:#1769e8;--blue2:#0e55c5;
  --bg:#f5f8fc;--surface:#fff;--surface2:#f0f5fb;--sky:#eaf2ff;--ink:#17243a;--muted:#5d6c85;--line:#e1e8f1;
  --green:#14805a;--green-bg:#e9f8f1;--red:#c03d3d;--red-bg:#fff1f1;--amber:#b7791f;
  --shadow:0 12px 32px rgba(20,45,80,.08);--radius:16px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0a1322;--surface:#101c30;--surface2:#15233a;--sky:#16294a;--ink:#e5ecf6;--muted:#93a4bc;--line:#22324b;
  --green:#4fd1a0;--green-bg:#10302a;--red:#f08a8a;--red-bg:#3a1c22;--blue:#4b8ff5;--blue2:#2f78ea;--shadow:0 12px 32px rgba(0,0,0,.35);color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0a1322;--surface:#101c30;--surface2:#15233a;--sky:#16294a;--ink:#e5ecf6;--muted:#93a4bc;--line:#22324b;
  --green:#4fd1a0;--green-bg:#10302a;--red:#f08a8a;--red-bg:#3a1c22;--blue:#4b8ff5;--blue2:#2f78ea;--shadow:0 12px 32px rgba(0,0,0,.35);color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer}
a{color:var(--blue)}
:focus-visible{outline:3px solid #7fb0ff;outline-offset:2px;border-radius:6px}
.ic{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;vertical-align:middle}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.shell{max-width:1240px;margin:auto;padding:0 24px}
.hidden{display:none!important}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:11px;padding:11px 16px;font-weight:700;font-size:14px;transition:background .2s,transform .2s,border-color .2s;text-decoration:none;white-space:nowrap}
.btn .ic{width:17px;height:17px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 5px 12px rgba(23,105,232,.22)}
.btn-primary:hover{background:var(--blue2);transform:translateY(-1px)}
.btn-light{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-light:hover{border-color:var(--blue)}
.btn-ghost{background:transparent;color:var(--blue);padding:8px 10px}
.btn-sm{padding:8px 12px;font-size:12.5px;border-radius:9px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.icon-btn{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}
.icon-btn:hover{border-color:var(--blue);color:var(--blue)}

/* header */
.topbar{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--surface) 94%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);min-width:0}
.logo{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,#2076f6,#0849b6);color:#fff;font-size:17px;font-weight:900;letter-spacing:-.5px;box-shadow:0 6px 16px rgba(23,105,232,.25);flex-shrink:0}
.brand strong{display:block;font-size:16px;letter-spacing:-.3px;line-height:1.2}
.brand small{display:block;color:var(--muted);font-size:11px}
.navlinks{display:flex;gap:2px}
.navlinks a{color:var(--muted);text-decoration:none;border-radius:9px;padding:9px 11px;font-weight:650;font-size:13.5px;white-space:nowrap}
.navlinks a:hover,.navlinks a.active{background:var(--sky);color:var(--blue)}
.nav-actions{display:flex;align-items:center;gap:8px}
.lang-btn{white-space:nowrap;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);padding:0 11px;font-weight:700;font-size:12.5px;display:inline-flex;gap:6px;align-items:center}
.lang-btn b{color:var(--blue)}
.menu-toggle{display:none}
.mobile-menu{display:none;padding:6px 0 14px}
.mobile-menu.open{display:grid;grid-template-columns:repeat(2,1fr);gap:6px}
.mobile-menu a{background:var(--surface2);padding:12px;border-radius:9px;color:var(--ink);font-weight:650;text-decoration:none;font-size:14px}

/* hero */
.hero{padding:64px 0 60px;background:linear-gradient(125deg,#0a1b35 0%,#102f59 55%,#164d88 100%);color:#fff;position:relative;overflow:hidden}
.hero-map{position:absolute;inset:0;opacity:.18;pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.22);border-radius:99px;padding:7px 12px;color:#d5e7ff;font-size:12px;font-weight:700;letter-spacing:.5px}
.eyebrow i{width:7px;height:7px;background:#62e3ad;border-radius:50%}
.hero h1{font-size:clamp(36px,5vw,58px);line-height:1.04;letter-spacing:-2px;margin:22px 0 18px;max-width:640px;font-weight:850}
.hero h1 em{font-style:normal;color:#8cbcff}
.hero-lead{color:#d4e1f2;font-size:17px;max-width:560px;margin:0 0 26px}
.hero-buttons{display:flex;flex-wrap:wrap;gap:12px}
.hero .btn{padding:13px 18px;font-size:15px}
.hero .btn-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3);color:#fff}
.hero .btn-light:hover{background:rgba(255,255,255,.15)}
.hero-note{margin-top:20px;color:#b2c7e2;font-size:13px}
.hero-side{display:grid;gap:14px}
.phrase-card,.toolkit{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(10px);border-radius:20px;padding:20px}
.phrase-card .label{font-size:11px;font-weight:800;letter-spacing:.8px;color:#9fc3f5;display:flex;justify-content:space-between;align-items:center}
.phrase-en{font-size:22px;font-weight:750;letter-spacing:-.4px;margin:10px 0 4px;line-height:1.25}
.phrase-mn{color:#c3d6ee;font-size:14px}
.phrase-actions{display:flex;gap:8px;margin-top:14px}
.phrase-actions button{border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#fff;border-radius:9px;padding:7px 11px;font-size:12.5px;font-weight:650;display:inline-flex;gap:6px;align-items:center}
.phrase-actions button:hover{background:rgba(255,255,255,.16)}
.phrase-actions .ic{width:15px;height:15px}
.toolkit-row{display:flex;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.toolkit-row:last-child{border:0;padding-bottom:0}
.toolkit-row:first-child{padding-top:0}
.toolkit-icon{width:38px;height:38px;border-radius:11px;background:rgba(255,255,255,.1);display:grid;place-items:center;color:#a9cbff}
.toolkit-row strong{display:block;font-size:13.5px}
.toolkit-row small{color:#b9cde6;font-size:12px}

/* feature strip */
.strip{background:var(--surface);border-bottom:1px solid var(--line)}
.strip-grid{display:grid;grid-template-columns:repeat(5,1fr);padding:20px 0;gap:16px}
.strip-item{display:flex;align-items:center;gap:11px}
.strip-icon{width:42px;height:42px;border-radius:12px;background:var(--sky);color:var(--blue);display:grid;place-items:center;flex-shrink:0}
.strip-item strong{display:block;font-size:13px;line-height:1.3}
.strip-item small{display:block;color:var(--muted);font-size:11.5px}

/* sections */
.section{padding:60px 0}
.section.alt{background:var(--surface2)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px;flex-wrap:wrap}
.section-head h2{font-size:clamp(25px,3vw,34px);letter-spacing:-1px;margin:0 0 5px;line-height:1.15}
.section-head h2 span{color:var(--muted);font-weight:600}
.section-head p{margin:0;color:var(--muted);font-size:14.5px;max-width:620px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:11px;border-radius:99px;background:var(--sky);color:var(--blue);padding:5px 10px;font-weight:800;letter-spacing:.3px}
.pill.green{background:var(--green-bg);color:var(--green)}
.pill.grey{background:var(--surface2);color:var(--muted)}

/* courses */
.course-tools{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{border:1px solid var(--line);background:var(--surface);border-radius:99px;padding:7px 13px;font-size:13px;font-weight:650;color:var(--muted)}
.chip[aria-pressed="true"]{background:var(--blue);border-color:var(--blue);color:#fff}
.search{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:11px;padding:0 12px;margin-left:auto;min-width:240px}
.search input{border:0;background:transparent;padding:10px 0;outline:none;width:100%;font-size:14px}
.search .ic{color:var(--muted);width:18px}
.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.course-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.course-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.course-art{height:128px;padding:18px;display:flex;align-items:flex-end;justify-content:space-between;color:#fff;position:relative;overflow:hidden}
.course-art svg.contour{position:absolute;inset:0;width:100%;height:100%;opacity:.22}
.course-art .big{width:46px;height:46px;stroke-width:1.5;position:relative}
.art-label{position:relative;font-size:10.5px;font-weight:800;letter-spacing:.5px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:5px 9px;border-radius:99px}
.art-english{background:linear-gradient(130deg,#0a2749,#2874ba)}
.art-terms{background:linear-gradient(130deg,#0e3b6b,#528bc6)}
.art-practical{background:linear-gradient(130deg,#174b43,#2b9a7a)}
.art-comms{background:linear-gradient(130deg,#343a73,#786fd4)}
.art-poc{background:linear-gradient(130deg,#4b2b39,#bb6a78)}
.art-instructor{background:linear-gradient(130deg,#37495d,#8398b0)}
.art-cptm{background:linear-gradient(130deg,#0b3a66,#1a8fd6)}
.art-cptm2{background:linear-gradient(130deg,#0b4a52,#1aa3a8)}
.art-cptm3{background:linear-gradient(130deg,#232e72,#5b6fd6)}
.art-unmo{background:linear-gradient(130deg,#2f3a17,#7d8f3e)}
.art-unso{background:linear-gradient(130deg,#132a45,#3f6f9f)}
.course-body{padding:18px;display:flex;flex-direction:column;flex:1}
.course-body h3{font-size:17px;line-height:1.25;margin:0 0 3px;letter-spacing:-.3px}
.alt-title{font-size:12.5px;color:var(--blue);font-weight:650;margin-bottom:10px}
.course-body p{font-size:13.5px;color:var(--muted);margin:0 0 14px}
.course-meta{display:flex;justify-content:space-between;gap:8px;border-top:1px solid var(--line);padding-top:12px;color:var(--muted);font-size:12px;margin-top:auto}
.course-meta span{display:inline-flex;align-items:center;gap:5px}
.course-meta .ic{width:15px;height:15px}
.course-progress{margin-top:12px}
.course-footer{display:flex;justify-content:space-between;align-items:center;margin-top:14px;gap:8px}
.empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:40px;border:1px dashed var(--line);border-radius:var(--radius)}

.track{height:7px;background:var(--line);border-radius:99px;overflow:hidden}
.track span{height:100%;display:block;background:var(--blue);border-radius:99px;transition:width .4s}
.track.green span{background:var(--green)}
.track-label{display:flex;justify-content:space-between;color:var(--muted);font-size:11.5px;margin-top:5px}

/* lesson */
.lesson-wrap{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}
.lesson-wrap>*,.dash-columns>*,.res-grid>*,.about-grid>*,.course-grid>*{min-width:0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px}
.lesson-top{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;flex-wrap:wrap}
.breadcrumb{font-size:12.5px;color:var(--muted);margin-bottom:10px}
.lesson-main h2{font-size:28px;letter-spacing:-.8px;margin:0 0 4px;line-height:1.2}
.lesson-subtitle{color:var(--muted);font-size:14.5px;margin:0 0 18px}
.select{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:9px 12px;font-size:13px;font-weight:600;max-width:100%}
.lesson-tabs{display:flex;gap:4px;overflow-x:auto;border-bottom:1px solid var(--line);margin-bottom:20px}
.lesson-tabs button{white-space:nowrap;border:0;background:transparent;color:var(--muted);padding:11px 14px;font-weight:700;font-size:13.5px;border-bottom:2px solid transparent;margin-bottom:-1px;display:inline-flex;gap:7px;align-items:center}
.lesson-tabs button[aria-selected="true"]{color:var(--blue);border-bottom-color:var(--blue)}
.lesson-tabs .done{width:16px;height:16px;border-radius:50%;background:var(--green);color:#fff;display:inline-grid;place-items:center}
.lesson-tabs .done .ic{width:11px;height:11px;stroke-width:3}
.toggle{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted);cursor:pointer;user-select:none}
.toggle input{width:16px;height:16px;accent-color:var(--blue)}

.vocab-list{display:grid;gap:10px}
.vocab{display:grid;grid-template-columns:minmax(180px,1fr) 1.6fr auto;gap:16px;border:1px solid var(--line);border-radius:13px;padding:14px 16px;align-items:center}
.vocab.known{border-color:color-mix(in srgb,var(--green) 45%,var(--line));background:color-mix(in srgb,var(--green-bg) 55%,var(--surface))}
.term{display:flex;gap:10px;align-items:flex-start}
.term strong{font-size:15.5px;display:block;line-height:1.3}
.term .tr{font-size:13px;color:var(--blue);font-weight:650}
.vocab p{font-size:13.5px;color:var(--muted);margin:0}
.vocab .ex{color:var(--ink);margin-top:5px}
.vocab .ex-mn{font-size:12.5px;color:var(--muted);margin-top:2px}
.speak{border:1px solid var(--line);background:var(--surface);border-radius:9px;width:34px;height:34px;display:inline-grid;place-items:center;color:var(--blue);flex-shrink:0}
.speak:hover{border-color:var(--blue);background:var(--sky)}
.speak .ic{width:17px;height:17px}
.known-btn{border:1px solid var(--line);background:var(--surface);border-radius:99px;padding:6px 11px;font-size:12px;font-weight:700;color:var(--muted);display:inline-flex;gap:5px;align-items:center;white-space:nowrap}
.known-btn .ic{width:14px;height:14px}
.known-btn[aria-pressed="true"]{background:var(--green);border-color:var(--green);color:#fff}

.dialogue{display:grid;gap:12px}
.line{display:flex;gap:12px;align-items:flex-start;max-width:86%}
.line.b{margin-left:auto;flex-direction:row-reverse;text-align:right}
.who{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:13px;background:var(--sky);color:var(--blue);flex-shrink:0}
.line.b .who{background:var(--green-bg);color:var(--green)}
.bubble{background:var(--surface2);border:1px solid var(--line);border-radius:14px;padding:10px 14px}
.line.b .bubble{background:var(--surface)}
.bubble small{display:block;font-size:11px;font-weight:750;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
.bubble .en{font-size:14.5px;margin:2px 0}
.bubble .mn{font-size:12.5px;color:var(--muted)}
.bubble-row{display:flex;gap:8px;align-items:center}
.line.b .bubble-row{flex-direction:row-reverse}
.line.speaking .bubble{border-color:var(--blue);box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 18%,transparent)}
.callout{display:flex;gap:12px;background:var(--sky);border-radius:13px;padding:14px 16px;margin-top:18px;font-size:14px}
.callout .ic{color:var(--blue);margin-top:2px}
.callout strong{display:block;margin-bottom:2px}
.callout.tiers ol{margin:6px 0 0;padding-left:20px}

.prompt-box{background:var(--sky);border-radius:13px;padding:16px 18px;margin:14px 0}
.prompt-box small{font-size:11px;font-weight:800;letter-spacing:.6px;color:var(--blue)}
.prompt-box p{margin:5px 0 0;font-size:15.5px}
.prompt-box .mn{font-size:13px;color:var(--muted);margin-top:4px}
label.field{display:block;font-weight:700;font-size:13px;margin-bottom:6px}
textarea,input.text{width:100%;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:11px 12px;resize:vertical;font-size:14.5px}
textarea:focus,input.text:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px color-mix(in srgb,var(--blue) 20%,transparent)}
.checklist{display:grid;gap:8px;margin:14px 0}
.checklist label{display:flex;gap:9px;align-items:center;font-size:14px;cursor:pointer}
.checklist input{width:17px;height:17px;accent-color:var(--green)}
.model{border:1px dashed var(--green);background:var(--green-bg);border-radius:12px;padding:12px 14px;margin-top:12px;font-size:14.5px}
.model small{display:block;font-size:11px;font-weight:800;color:var(--green);letter-spacing:.5px}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

.option{display:block;width:100%;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:12px 14px;margin:8px 0;font-size:14px}
.option:hover:not(:disabled){border-color:var(--blue);background:color-mix(in srgb,var(--sky) 60%,var(--surface))}
.option:disabled{cursor:default}
.option.correct{border-color:var(--green);background:var(--green-bg)}
.option.incorrect{border-color:var(--red);background:var(--red-bg)}
.option.dim{opacity:.6}
.qblock{padding:16px 0;border-bottom:1px solid var(--line)}
.qblock:first-of-type{padding-top:4px}
.qtext{font-weight:750;font-size:15.5px;margin-bottom:6px}
.feedback{font-size:13.5px;margin-top:8px;padding:10px 12px;border-radius:10px}
.feedback.ok{background:var(--green-bg);color:var(--green)}
.feedback.no{background:var(--red-bg);color:var(--red)}
.feedback b{display:block}
.feedback span{color:var(--ink)}
.score{display:flex;gap:16px;align-items:center;background:var(--surface2);border-radius:14px;padding:16px;margin-top:16px}
.score-num{font-size:30px;font-weight:850;letter-spacing:-1px}
.score p{margin:0;color:var(--muted);font-size:13.5px}

.side h3{font-size:15px;margin:0 0 14px}
.stat-line{display:flex;justify-content:space-between;font-size:13px;margin:9px 0;color:var(--muted)}
.stat-line strong{color:var(--ink)}
.steps{list-style:none;padding:0;margin:16px 0;display:grid;gap:8px}
.steps li{display:flex;gap:10px;align-items:center;font-size:13.5px}
.steps .dot{width:22px;height:22px;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;flex-shrink:0}
.steps li.on .dot{background:var(--green);border-color:var(--green);color:#fff}
.steps .dot .ic{width:12px;height:12px;stroke-width:3}
.steps li span.w{margin-left:auto;color:var(--muted);font-size:12px}
.disclaimer{font-size:12px;color:var(--muted);margin:14px 0 0;padding-top:14px;border-top:1px solid var(--line)}

/* dashboard */
.dash-welcome{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.who-row{display:flex;gap:14px;align-items:center}
.avatar{width:48px;height:48px;display:grid;place-items:center;background:var(--sky);color:var(--blue);border-radius:50%;font-weight:850;font-size:18px;flex-shrink:0}
.dash-welcome h3{margin:0;font-size:22px;letter-spacing:-.6px}
.dash-welcome p{margin:2px 0 0;color:var(--muted);font-size:13.5px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}
.metric{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;display:flex;gap:12px;align-items:center}
.metric-icon{width:42px;height:42px;border-radius:12px;background:var(--sky);color:var(--blue);display:grid;place-items:center;flex-shrink:0}
.metric-label{font-size:12px;color:var(--muted);font-weight:650}
.metric-value{font-size:24px;font-weight:850;letter-spacing:-.8px;line-height:1.15}
.metric-value small{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:0}
.ring{width:46px;height:46px;flex-shrink:0}
.ring circle{fill:none;stroke-width:5}
.ring .bgc{stroke:var(--line)}
.ring .fg{stroke:var(--blue);stroke-linecap:round;transition:stroke-dashoffset .5s;transform:rotate(-90deg);transform-origin:50% 50%}
.dash-columns{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}
.dash-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;margin-bottom:16px}
.dash-card h4{font-size:15px;margin:0 0 14px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.continue{display:flex;gap:14px;align-items:center}
.mini-art{width:72px;height:68px;border-radius:12px;display:grid;place-items:center;color:#fff;flex-shrink:0}
.mini-art .ic{width:30px;height:30px}
.continue-copy{flex:1;min-width:0}
.continue-copy strong{font-size:14.5px;display:block}
.continue-copy small{font-size:12px;color:var(--muted)}
.my-course{display:grid;grid-template-columns:34px 1fr 90px auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.my-course:last-child{border:0;padding-bottom:0}
.my-course .sw{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;color:#fff}
.my-course .sw .ic{width:17px;height:17px}
.my-course small{display:block;color:var(--muted);font-size:11.5px}
.badges{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.badge{border:1px solid var(--line);border-radius:12px;padding:10px 6px;text-align:center;font-size:11px;color:var(--muted);font-weight:650}
.badge .b-ic{width:34px;height:34px;border-radius:50%;margin:0 auto 5px;display:grid;place-items:center;background:var(--surface2);color:var(--muted)}
.badge.on{color:var(--ink)}
.badge.on .b-ic{color:#fff}
.goal{display:flex;gap:14px;align-items:center}
.goal .ic{width:28px;height:28px;color:var(--blue)}

/* resources */
.res-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:18px;align-items:start}
.gloss-head{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.gloss-head .search{margin-left:0;flex:1}
.gloss-table{width:100%;border-collapse:collapse;font-size:13.5px}
.gloss-table th{text-align:left;font-size:11.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;padding:8px 10px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--surface)}
.gloss-table td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
.gloss-table td:first-child{font-weight:700;white-space:nowrap}
.gloss-table td small{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.gloss-table .speak{width:30px;height:30px}
.gloss-scroll{max-height:460px;overflow:auto;border:1px solid var(--line);border-radius:12px}
.gloss-count{font-size:12px;color:var(--muted);margin-top:8px}
.phon{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.phon button{border:1px solid var(--line);background:var(--surface);border-radius:9px;padding:7px 4px;font-size:12px;text-align:center}
.phon button:hover{border-color:var(--blue);background:var(--sky)}
.phon b{display:block;font-size:15px;color:var(--blue)}
.dl{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.dl:last-child{border:0;padding-bottom:0}
.dl-icon{width:38px;height:38px;border-radius:10px;background:var(--surface2);color:var(--blue);display:grid;place-items:center;flex-shrink:0}
.dl div:nth-child(2){flex:1;min-width:0}
.dl strong{display:block;font-size:13.5px}
.dl small{color:var(--muted);font-size:12px}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.audience{display:grid;gap:12px}
.aud{display:flex;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px}
.aud .strip-icon{width:44px;height:44px}
.aud strong{display:block;font-size:15px}
.aud p{margin:3px 0 0;color:var(--muted);font-size:13.5px}
details.faq{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:0 16px;margin-bottom:10px}
details.faq summary{cursor:pointer;font-weight:700;font-size:14.5px;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:10px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary .ic{transition:transform .2s;color:var(--muted)}
details.faq[open] summary .ic{transform:rotate(90deg)}
details.faq p{margin:0 0 14px;color:var(--muted);font-size:14px}

.cta{background:linear-gradient(120deg,#0b2343,#1656a1);color:#fff;border-radius:22px;padding:36px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta h2{margin:0 0 8px;font-size:28px;letter-spacing:-.7px}
.cta p{margin:0;color:#d1e2f9;font-size:15px}
.cta .btn-light{background:#fff;color:#164b8c;border-color:#fff}
.footer{padding:28px 0 40px;color:var(--muted);font-size:12.5px}
.footer-inner{display:grid;grid-template-columns:1fr 1.4fr auto;gap:24px;align-items:start;border-top:1px solid var(--line);padding-top:24px}
.footer strong{color:var(--ink)}

/* dialogs */
dialog{border:0;border-radius:20px;padding:0;max-width:560px;width:calc(100% - 32px);background:var(--surface);color:var(--ink);box-shadow:0 30px 80px rgba(0,0,0,.3)}
dialog::backdrop{background:rgba(8,18,35,.55);backdrop-filter:blur(3px)}
.dlg-head{padding:20px 22px 0;display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.dlg-head h3{margin:0;font-size:20px;letter-spacing:-.4px}
.dlg-head p{margin:3px 0 0;color:var(--muted);font-size:13.5px}
.dlg-body{padding:16px 22px 22px}
.dlg-art{height:96px;border-radius:14px;margin:0 22px;display:flex;align-items:center;padding:0 20px;color:#fff;gap:14px;position:relative;overflow:hidden}
.dlg-art .ic{width:40px;height:40px;position:relative}
.dlg-art svg.contour{position:absolute;inset:0;width:100%;height:100%;opacity:.22}
.syllabus{list-style:none;padding:0;margin:12px 0 18px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.syllabus li{display:flex;gap:12px;align-items:center;padding:11px 14px;border-bottom:1px solid var(--line);font-size:14px}
.syllabus li:last-child{border:0}
.syllabus .num{width:26px;height:26px;border-radius:8px;background:var(--surface2);display:grid;place-items:center;font-size:12px;font-weight:800;color:var(--muted);flex-shrink:0}
.syllabus li.open .num{background:var(--blue);color:#fff}
.syllabus li .pill{margin-left:auto}
.form-grid{display:grid;gap:14px}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg label{flex:1;min-width:120px}
.seg input{position:absolute;opacity:0}
.seg span{display:block;border:1px solid var(--line);border-radius:10px;padding:10px;text-align:center;font-size:13.5px;font-weight:650;cursor:pointer}
.seg input:checked+span{border-color:var(--blue);background:var(--sky);color:var(--blue)}
.seg input:focus-visible+span{outline:3px solid #7fb0ff}
.note{font-size:12px;color:var(--muted)}

.cert{border:2px solid #c9a24a;border-radius:14px;padding:28px 22px;text-align:center;background:linear-gradient(180deg,#fffdf6,#fff);color:#1d2a40;position:relative}
.cert:before{content:"";position:absolute;inset:6px;border:1px solid #e3cf9b;border-radius:10px;pointer-events:none}
.cert .seal{width:56px;height:56px;border-radius:50%;margin:0 auto 10px;background:linear-gradient(145deg,#2076f6,#0849b6);color:#fff;display:grid;place-items:center;font-weight:900}
.cert small{display:block;letter-spacing:2px;font-size:10.5px;color:#8a6d22;font-weight:800}
.cert h4{font-size:24px;margin:8px 0 2px;letter-spacing:-.5px}
.cert .name{font-size:22px;font-weight:800;border-bottom:1px solid #d9c48f;display:inline-block;padding:0 16px 4px;margin:10px 0}
.cert p{font-size:13px;color:#4a5872;margin:6px 0}
.cert .issuer{font-size:12px;margin-top:4px}
.cert ul{list-style:none;padding:0;margin:12px 0;font-size:12.5px;color:#4a5872;columns:2}
.cert ul.one{columns:1}
.cert ul li{break-inside:avoid;margin:2px 0}
.locked{text-align:center;padding:10px 0}
.locked .ic{width:40px;height:40px;color:var(--muted)}

.toast{position:fixed;bottom:22px;left:50%;transform:translate(-50%,20px);background:#102b4d;color:#fff;padding:12px 18px;border-radius:12px;box-shadow:var(--shadow);font-size:14px;opacity:0;pointer-events:none;transition:.25s;z-index:99;max-width:calc(100% - 32px)}
.toast.show{opacity:1;transform:translate(-50%,0)}
#printArea{display:none}

@media(max-width:1240px){.navlinks{display:none}.menu-toggle{display:inline-grid}}
@media(max-width:1080px){
  .navlinks{display:none}.menu-toggle{display:inline-grid}
  .strip-grid{grid-template-columns:repeat(3,1fr)}
  .course-grid{grid-template-columns:repeat(2,1fr)}
  .lesson-wrap{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .dash-columns,.res-grid,.about-grid{grid-template-columns:1fr}
}
@media(max-width:760px){
  .shell{padding:0 16px}
  .nav{height:64px;gap:8px}
  .brand small{display:none}.brand strong{font-size:14.5px}.logo{width:38px;height:38px;font-size:15px}
  .nav-actions .login-btn,.nav-actions .start-btn{display:none}
  .hero{padding:42px 0 40px}.hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-lead{font-size:15.5px}
  .strip-grid{grid-template-columns:1fr 1fr;gap:14px}
  .section{padding:42px 0}
  .search{min-width:0;width:100%;margin-left:0}
  .course-grid{grid-template-columns:1fr;gap:14px}
  .card{padding:18px}
  .lesson-main h2{font-size:23px}
  .lesson-top label,.select{width:100%}
  .lang-btn .ic{display:none}.lang-btn{padding:0 9px}
  .gloss-table th:nth-child(3),.gloss-table td:nth-child(3){display:none}
  .vocab{grid-template-columns:1fr;gap:8px}
  .vocab .known-btn{justify-self:start}
  .line{max-width:100%}
  .metrics{gap:10px}.metric{padding:12px;flex-direction:column;align-items:flex-start;gap:8px}
  .my-course{grid-template-columns:34px 1fr auto}.my-course .track-wrap{display:none}
  .continue{flex-wrap:wrap}.continue .btn{width:100%}
  .phon{grid-template-columns:repeat(3,1fr)}
  .cta{padding:26px;display:block}.cta .btn{margin-top:18px}
  .footer-inner{grid-template-columns:1fr}
  .cert ul{columns:1}
}
@media print{
  body>*:not(#printArea){display:none!important}
  #printArea{display:block!important}
  body{background:#fff}
  .cert{margin:40px auto;max-width:700px}
  .print-table{width:100%;border-collapse:collapse;font:12px Inter,sans-serif;color:#000}
  .print-table th,.print-table td{border:1px solid #bbb;padding:6px;text-align:left;vertical-align:top}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ===================== v2: accounts, pricing, checkout ===================== */
.banner{background:#fff4d6;color:#6b4a00;border-bottom:1px solid #f0d99a;font-size:13.5px;padding:10px 0}
.banner code{background:#ffffff99;padding:1px 5px;border-radius:5px}
.loading{opacity:.55;pointer-events:none}
.spinner{width:18px;height:18px;border:2.5px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .8s linear infinite;display:inline-block;vertical-align:middle}
@keyframes spin{to{transform:rotate(360deg)}}
.err{color:var(--red);font-size:13px;margin:0}
.ok-text{color:var(--green);font-size:13px;margin:0}
.lock-pill{display:inline-flex;align-items:center;gap:4px;font-size:10.5px;font-weight:800;letter-spacing:.3px;color:#8a5a00;background:#fff1cf;border-radius:99px;padding:3px 8px}
:root[data-theme="dark"] .lock-pill{background:#3a2c0d;color:#f3c76a}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .lock-pill{background:#3a2c0d;color:#f3c76a}}
.lock-pill .ic{width:11px;height:11px}
.syllabus li button.linkish{all:unset;cursor:pointer;flex:1}
.syllabus li button.linkish:hover{color:var(--blue)}
.syllabus li.done .num{background:var(--green);color:#fff}

.pricing{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:900px}
.price-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:26px;display:flex;flex-direction:column}
.price-card.featured{border:2px solid var(--blue);box-shadow:var(--shadow);position:relative}
.price-card .ribbon{position:absolute;top:-12px;left:24px}
.price-card h3{margin:0 0 4px;font-size:18px}
.price{font-size:36px;font-weight:850;letter-spacing:-1.2px;margin:10px 0 2px}
.price small{font-size:14px;color:var(--muted);font-weight:600;letter-spacing:0}
.price-card ul{list-style:none;padding:0;margin:16px 0 22px;display:grid;gap:9px;font-size:14px}
.price-card li{display:flex;gap:9px;align-items:flex-start}
.price-card li .ic{color:var(--green);width:18px;height:18px;margin-top:1px}
.price-card .btn{margin-top:auto;width:100%}
.pay-note{font-size:12.5px;color:var(--muted);margin-top:14px;display:flex;gap:8px;align-items:center}

.paywall{text-align:center;padding:30px 10px}
.paywall .big-lock{width:64px;height:64px;border-radius:50%;background:var(--sky);color:var(--blue);display:grid;place-items:center;margin:0 auto 14px}
.paywall .big-lock .ic{width:30px;height:30px}
.paywall h3{margin:0 0 6px;font-size:20px}
.paywall p{color:var(--muted);margin:0 auto 18px;max-width:440px}

.tabs-inline{display:flex;gap:4px;background:var(--surface2);padding:4px;border-radius:11px;margin-bottom:16px}
.tabs-inline button{flex:1;border:0;background:transparent;padding:8px;border-radius:8px;font-weight:700;font-size:13px;color:var(--muted)}
.tabs-inline button[aria-selected="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.field-row{display:grid;gap:6px}
.pw-wrap{position:relative}
.pw-wrap button{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:transparent;color:var(--muted);padding:6px}

.qr-box{display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:start}
.qr-box img{width:220px;height:220px;border-radius:14px;border:1px solid var(--line);background:#fff;padding:8px;image-rendering:pixelated}
.banks{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:8px;margin-top:10px;max-height:240px;overflow:auto}
.banks a{display:flex;flex-direction:column;align-items:center;gap:5px;text-decoration:none;color:var(--ink);font-size:11px;text-align:center;border:1px solid var(--line);border-radius:10px;padding:8px 4px}
.banks a:hover{border-color:var(--blue)}
.banks img{width:36px;height:36px;border-radius:9px;object-fit:contain}
.pay-status{display:flex;gap:10px;align-items:center;background:var(--surface2);border-radius:12px;padding:12px 14px;margin-top:16px;font-size:13.5px}
.pay-success{text-align:center;padding:16px 0}
.pay-success .b-ic{width:64px;height:64px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;margin:0 auto 12px}
.pay-success .b-ic .ic{width:32px;height:32px;stroke-width:2.6}

.member{display:flex;gap:12px;align-items:center;border-radius:13px;padding:14px;background:var(--surface2)}
.member.active{background:var(--green-bg)}
.member .ic{width:26px;height:26px}
.member.active .ic{color:var(--green)}
.member strong{display:block;font-size:14.5px}
.member small{color:var(--muted);font-size:12.5px}
.orders{width:100%;border-collapse:collapse;font-size:13px;margin-top:8px}
.orders td,.orders th{padding:8px 6px;border-bottom:1px solid var(--line);text-align:left}
.orders th{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px}
.status-paid{color:var(--green);font-weight:700}
.status-pending{color:var(--amber);font-weight:700}
.status-failed,.status-cancelled{color:var(--red);font-weight:700}
.guest-cta{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:var(--sky);border-radius:14px;padding:14px 18px;margin-bottom:16px;font-size:14px}
.guest-cta strong{display:block}
.upsell-row td{background:var(--sky);text-align:center;color:var(--blue);font-weight:650}
.account-chip{display:inline-flex;align-items:center;gap:8px}
.account-chip .mini-av{width:26px;height:26px;border-radius:50%;background:var(--sky);color:var(--blue);display:grid;place-items:center;font-weight:800;font-size:12px}
.pro-dot{width:8px;height:8px;border-radius:50%;background:var(--green)}
@media(max-width:760px){
  .pricing{grid-template-columns:1fr}
  .qr-box{grid-template-columns:1fr;justify-items:center}
  .nav-actions .login-btn{display:inline-flex;padding:8px 10px;font-size:13px}
  .nav-actions .login-btn .acct-name{display:none}
}

/* ===================== v3: launch polish ===================== */
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--blue);color:#fff;padding:10px 14px;border-radius:10px;font-weight:700;text-decoration:none}
.skip-link:focus{top:12px}
.footer-links{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:8px}
.footer-links a{color:var(--muted);text-decoration:none}
.footer-links a:hover{color:var(--blue);text-decoration:underline}
.consent{display:flex;gap:9px;align-items:flex-start;font-size:13px;line-height:1.45}
.consent input{width:17px;height:17px;margin-top:1px;accent-color:var(--blue);flex-shrink:0}
.pay-terms{font-size:12px;color:var(--muted);margin:12px 0 0}
.cert-todo{list-style:none;padding:0;margin:14px auto 0;max-width:420px;text-align:left;font-size:13px;max-height:220px;overflow:auto}
.cert-todo li{display:flex;justify-content:space-between;gap:10px;padding:6px 0;border-bottom:1px solid var(--line,#e3e8ef)}
.link-btn{background:none;border:0;padding:0;color:var(--brand,#1f5f9e);font:inherit;text-align:left;cursor:pointer;text-decoration:underline}
/* About dropdown */
.nav-drop{position:relative}
.nav-drop-btn{display:flex;align-items:center;gap:4px;white-space:nowrap;background:none;border:0;color:var(--muted);border-radius:9px;padding:9px 11px;font:inherit;font-weight:650;font-size:13.5px;cursor:pointer}
.nav-drop-btn:hover,.nav-drop.open .nav-drop-btn{background:var(--sky);color:var(--blue)}
.nav-drop-btn .ic{width:14px;height:14px;transform:rotate(90deg);transition:transform .15s}
.nav-drop.open .nav-drop-btn .ic{transform:rotate(-90deg)}
.nav-drop-menu{display:none;position:absolute;top:calc(100% + 6px);left:0;min-width:260px;background:var(--card,#fff);border:1px solid var(--line,#e3e8ef);border-radius:12px;box-shadow:0 12px 30px rgba(15,30,60,.14);padding:6px;z-index:50}
.nav-drop.open .nav-drop-menu,.nav-drop:hover .nav-drop-menu,.nav-drop:focus-within .nav-drop-menu{display:block}
.nav-drop-menu a{display:block;white-space:nowrap}
.mobile-menu a.sub{padding-left:28px;font-size:.95em}
.ll-list{display:grid;gap:14px}
.ll-empty{padding:28px;border:1px dashed var(--line,#d6dde8);border-radius:14px;text-align:center}
/* About us */
.au-head{display:flex;gap:16px;align-items:center;margin-bottom:18px}
.au-head h2{margin:2px 0 4px;font-size:clamp(20px,3vw,28px);letter-spacing:-.4px}
.au-badge{width:56px;height:56px;flex:none;border-radius:16px;display:grid;place-items:center;background:linear-gradient(145deg,#2076f6,#0849b6);color:#fff}
.au-badge .ic{width:28px;height:28px}
.eyebrow{font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase;color:var(--blue)}
.au-motto{margin:0;font-weight:700;color:var(--muted)}
.au-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.au-stat{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px}
.au-stat strong{display:block;font-size:28px;color:var(--blue);letter-spacing:-.5px}
.au-stat span{font-size:13px;color:var(--muted)}
.au-asof{margin:8px 0 18px;text-align:right}
.au-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.au-card,.au-block,.au-partner{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}
.au-card h3,.au-block h3{margin:0 0 8px;font-size:16px}
.au-card p,.au-block p,.au-partner p{margin:0 0 8px;font-size:14px;line-height:1.6;color:var(--ink)}
.au-two{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}
.au-block{margin-bottom:18px}.au-two .au-block{margin-bottom:0}
.au-timeline{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.au-timeline li{display:grid;grid-template-columns:86px 1fr;gap:10px;font-size:14px;line-height:1.5}
.au-year{font-weight:800;color:var(--blue)}
.au-partners{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
.au-partner{background:var(--bg,transparent)}
.au-partner strong{display:block;margin-bottom:4px;font-size:14px}
.au-list{margin:8px 0 4px;padding-left:20px;font-size:14px;line-height:1.7}
@media (max-width:820px){.au-stats{grid-template-columns:1fr 1fr}.au-grid,.au-two,.au-partners{grid-template-columns:1fr}.au-timeline li{grid-template-columns:70px 1fr}}
.au-card ul,.au-partner ul{margin:4px 0 8px;padding-left:20px;font-size:14px;line-height:1.6}
.au-list ul{margin:2px 0 4px;padding-left:18px}
.au-gintro p{margin:8px 0 0;font-size:14px;color:var(--muted)}
.au-grid{align-items:start}
.au-logo{width:120px;height:120px;flex:none;border-radius:50%;object-fit:cover;box-shadow:0 8px 24px rgba(10,30,70,.22)}
@media (max-width:620px){.au-head{flex-direction:column;align-items:flex-start}.au-logo{width:96px;height:96px}}
/* Project / founder */
.pj-idea p{font-size:15px}
.pj-head{display:flex;gap:16px;align-items:center;margin-bottom:12px}
.pj-head h3{margin:2px 0 4px;font-size:20px}
.pj-avatar{width:84px;height:84px;flex:none;border-radius:50%;display:grid;place-items:center;font-weight:900;font-size:26px;color:#fff;background:linear-gradient(145deg,#2076f6,#0849b6);box-shadow:0 8px 22px rgba(10,30,70,.2)}
.pj-role{margin:0;font-weight:650}
.pj-remarks{font-style:italic;border-left:3px solid var(--blue);padding-left:12px}
.pj-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px;margin-top:8px}
.pj-grid h4{margin:6px 0 6px;font-size:14px;color:var(--blue)}
.pj-list{margin:0;padding-left:18px;font-size:13.5px;line-height:1.65}
@media (max-width:820px){.pj-grid{grid-template-columns:1fr}.pj-head{flex-direction:column;align-items:flex-start}}
.pj-photo{width:120px;height:120px;flex:none;border-radius:50%;object-fit:cover;object-position:center top;box-shadow:0 8px 22px rgba(10,30,70,.2);border:3px solid #fff}
.pj-idea{max-width:none}
.pj-idea p{line-height:1.75;text-align:justify}
.pj-sign{text-align:right!important;font-weight:700;font-style:italic;margin-top:14px}
/* About pages open separately */
.page-only{display:none}
.page-only.page-active{display:block}
body.page-mode main>*:not(.page-active){display:none}
body.page-mode main>section.page-active{min-height:70vh;padding-top:28px}
.page-back{margin-bottom:14px}
.fb-form{display:grid;gap:12px;max-width:820px}
.fb-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.fb-form textarea.text{resize:vertical;min-height:140px;font:inherit}
.fb-form .btn{justify-self:start}
.fb-hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
@media (max-width:620px){.fb-row{grid-template-columns:1fr}}
.fb-form select.text{height:46px;border:1px solid var(--line);border-radius:12px;padding:0 12px;background:var(--surface);color:var(--ink);font:inherit;width:100%}
.fb-form .ok-text{color:var(--green);font-weight:650}

/* ---------- Install app (PWA) */
.install-btn{display:inline-flex;align-items:center;gap:6px}
@media (max-width:760px){.install-btn{display:none}}
.mobile-menu a.install-link{background:var(--blue);color:#fff}
.ios-steps{margin:6px 0 0;padding-left:22px;line-height:1.7}
.ios-steps li{margin:4px 0}
.ios-share{display:inline-grid;place-items:center;width:26px;height:26px;border-radius:7px;border:1px solid var(--line);vertical-align:middle;margin:0 2px}
/* Very narrow phones: the header buttons leave no room for the name, so show only the MR logo. */
@media (max-width:430px){.brand>div:not(.logo){display:none}}
@media(min-width:1241px){.brand{flex-shrink:0}.brand strong{white-space:nowrap}.brand small{display:none}.navlinks a,.nav-drop-btn{padding-left:6px;padding-right:6px}.nav{gap:12px}}
.callout.warn-attempts{background:#fff6dc;margin:0 0 14px}
.callout.warn-attempts .ic{color:#b7791f}
:root[data-theme="dark"] .callout.warn-attempts{background:#33290f}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .callout.warn-attempts{background:#33290f}}
.course-body .approval-pill{align-self:flex-start;margin-bottom:8px}
/* instructor files (course dialog, instructors/admins only) */
.instr-files{margin-top:18px;padding-top:14px;border-top:1px solid var(--line)}
.instr-files h4{display:flex;align-items:center;gap:8px;margin:0 0 4px;font-size:15px}
.instr-files h4 .ic{width:16px;height:16px}
.file-list{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:8px}
.file-list li{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:12px;border-left:4px solid var(--line)}
.file-list li .grow{flex:1;min-width:0}
.file-list li strong{display:block;font-size:14px;overflow-wrap:anywhere}
.file-list .file-kind{display:block;font-size:12px;color:var(--muted);margin-top:2px}
.file-list li.kind-facilitator{border-left-color:#b4472f}
.file-list li.kind-facilitator .file-kind{color:#b4472f;font-weight:700}
.file-list li.kind-participant{border-left-color:#3f7d4e}
.file-list .btn .ic{width:14px;height:14px;margin-right:4px}

.social{display:flex;align-items:center;gap:10px;margin-top:10px;flex-wrap:wrap}
.social-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:#1877f2;color:#fff;text-decoration:none;font-weight:600;font-size:12.5px}
.social-btn:hover{background:#0f63d1;color:#fff}
.mail-btn{background:var(--ink,#12233f)}
.mail-btn:hover{background:#1f5fa8}
.mail-btn span{word-break:break-all}