/* ==========================================================
   EF2W App UI
   Matches the student portal mockup: light canvas, card
   surfaces, streak pill, subject progress cards, bottom nav.
   ========================================================== */
:root {
  --blue: #1E43A8; --blue-deep: #0D1F4E; --magenta: #E01B7A; --red: #C8102E;
  --gold: #F5A81C; --green: #1B9E5A; --ink: #131B2E; --muted: #5A6478;
  --line: #E4E8F1; --canvas: #F7F8FC; --white: #FFFFFF; --lav: #EEF0FB;
  --radius: 14px; --radius-lg: 18px;
  --shadow-sm: 0 1px 3px rgba(19,27,46,.07);
  --shadow-md: 0 8px 26px rgba(19,27,46,.10);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Inter", -apple-system, "Segoe UI", sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:var(--font-body); background:var(--canvas); color:var(--ink); line-height:1.55; -webkit-font-smoothing:antialiased; }
a { color:inherit; text-decoration:none; }
:focus-visible { outline:3px solid var(--gold); outline-offset:2px; border-radius:4px; }
h1,h2 { font-family:var(--font-display); font-weight:900; letter-spacing:-.01em; }

/* ---------- Shell ---------- */
.topbar { position:sticky; top:0; z-index:60; background:rgba(255,255,255,.94); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
.topbar-inner { max-width:1080px; margin:0 auto; padding:0 20px; height:60px; display:flex; align-items:center; gap:26px; }
.topbar-inner.wide { max-width:1280px; }
.topbar-brand { font-weight:800; font-style:italic; font-size:21px; color:var(--blue); display:flex; align-items:center; gap:3px; }
.topbar-brand .tip { width:0;height:0;border-top:7px solid transparent;border-bottom:7px solid transparent;border-left:9px solid var(--gold); }
.topbar-nav { display:flex; gap:20px; }
.topbar-nav a { font-weight:600; font-size:14px; color:var(--muted); padding:4px 2px; }
.topbar-nav a.on, .topbar-nav a:hover { color:var(--blue); }
.topbar-nav .admin-link { color:var(--magenta); }
.topbar-right { margin-left:auto; display:flex; align-items:center; gap:12px; }
.icon-link { font-size:19px; }
.avatar { width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--magenta));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px; }
.page { max-width:1080px; margin:0 auto; padding:22px 20px 96px; }
.page.wide { max-width:1280px; }
.no-chrome .page { padding-bottom:24px; }

.bottomnav { position:fixed; bottom:0; left:0; right:0; z-index:60; display:none; background:rgba(255,255,255,.97); border-top:1px solid var(--line); padding:6px 4px calc(6px + env(safe-area-inset-bottom)); }
.bottomnav a { flex:1; display:flex; flex-direction:column; align-items:center; gap:1px; font-size:10.5px; font-weight:600; color:var(--muted); padding:4px 0; border-radius:10px; }
.bottomnav a.on { color:var(--blue); }
.bn-ico { font-size:19px; }
@media (max-width:820px) {
  .topbar-nav { display:none; }
  .bottomnav { display:flex; }
}

/* ---------- Toasts ---------- */
.toast { position:sticky; top:70px; z-index:70; margin:0 auto 12px; max-width:520px; padding:11px 18px; border-radius:12px; font-weight:600; font-size:14px; box-shadow:var(--shadow-md); text-align:center; transition:opacity .4s, transform .4s; }
.toast.gone { opacity:0; transform:translateY(-8px); pointer-events:none; }
.toast-ok { background:#E7F6EC; color:var(--green); }
.toast-err { background:#FBE7E9; color:var(--red); }
.toast-badge { background:var(--blue-deep); color:var(--gold); }

/* ---------- Generic components ---------- */
.card { background:var(--white); border:1px solid var(--line); border-radius:var(--radius-lg); padding:20px; box-shadow:var(--shadow-sm); }
.btn { display:inline-flex; align-items:center; justify-content:center; gap:7px; font-weight:700; font-size:14.5px; padding:11px 20px; border-radius:11px; border:2px solid transparent; cursor:pointer; transition:transform .12s, background .12s; font-family:var(--font-body); }
.btn:hover { transform:translateY(-1px); }
.btn-blue { background:var(--blue); color:#fff; }
.btn-blue:hover { background:#2A53C4; }
.btn-gold { background:var(--gold); color:var(--blue-deep); }
.btn-outline { border-color:var(--line); background:var(--white); color:var(--ink); }
.btn-danger { background:#FBE7E9; color:var(--red); }
.btn-sm { padding:7px 13px; font-size:13px; border-radius:9px; }
.btn-block { width:100%; }
.chip { display:inline-flex; align-items:center; gap:5px; font-size:12px; font-weight:700; padding:4px 11px; border-radius:999px; background:var(--lav); color:var(--blue); }
.chip-green { background:#E7F6EC; color:var(--green); }
.chip-red { background:#FBE7E9; color:var(--red); }
.chip-grey { background:#EEF0F4; color:var(--muted); }
.chip-gold { background:#FDF2DC; color:#9A6A05; }
.muted { color:var(--muted); }
.small { font-size:13px; }
.page-title { font-size:26px; margin-bottom:4px; }
.page-sub { color:var(--muted); font-size:14.5px; margin-bottom:20px; }
.section-label { font-size:11px; font-weight:800; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); margin:22px 0 10px; }
.grid2 { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.grid3 { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.grid4 { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
@media (max-width:820px){ .grid4{grid-template-columns:1fr 1fr;} .grid3{grid-template-columns:1fr;} }
@media (max-width:560px){ .grid2{grid-template-columns:1fr;} }

.bar { height:7px; border-radius:7px; background:var(--line); overflow:hidden; }
.bar > span { display:block; height:100%; border-radius:7px; background:var(--blue); }
.bar .c-blue{background:var(--blue);} .bar .c-green{background:var(--green);} .bar .c-red{background:var(--red);} .bar .c-gold{background:var(--gold);} .bar .c-magenta{background:var(--magenta);}

/* ---------- Auth pages ---------- */
.auth-wrap { min-height:100vh; display:flex; align-items:center; justify-content:center; background:radial-gradient(900px 500px at 80% -10%, #122A66, var(--blue-deep) 60%); padding:28px 16px; }
.auth-card { background:var(--white); border-radius:22px; padding:34px 30px; width:100%; max-width:430px; box-shadow:0 24px 70px rgba(0,0,0,.35); }
.auth-brand { font-weight:800; font-style:italic; font-size:26px; color:var(--blue); display:inline-flex; align-items:center; gap:4px; margin-bottom:14px; }
.auth-brand .tip { width:0;height:0;border-top:9px solid transparent;border-bottom:9px solid transparent;border-left:11px solid var(--gold); }
.auth-card h1 { font-size:23px; margin-bottom:4px; }
.auth-card .lead { color:var(--muted); font-size:14px; margin-bottom:18px; }
.field { margin-bottom:14px; }
.field label { display:block; font-weight:600; font-size:13.5px; margin-bottom:5px; }
.field input, .field select, .field textarea { width:100%; padding:11px 13px; border:1.5px solid var(--line); border-radius:11px; font-size:15px; font-family:var(--font-body); background:var(--white); }
.field input:focus, .field select:focus, .field textarea:focus { border-color:var(--blue); outline:none; }
.auth-alt { margin-top:16px; text-align:center; font-size:14px; color:var(--muted); }
.auth-alt a { color:var(--blue); font-weight:700; }
.form-err { background:#FBE7E9; color:var(--red); padding:10px 14px; border-radius:11px; font-size:13.5px; margin-bottom:14px; }
.form-ok { background:#E7F6EC; color:var(--green); padding:10px 14px; border-radius:11px; font-size:13.5px; margin-bottom:14px; }

/* ---------- Onboarding ---------- */
.pick-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin:14px 0 20px; }
.pick { position:relative; }
.pick input { position:absolute; opacity:0; }
.pick label { display:flex; flex-direction:column; align-items:center; gap:6px; padding:18px 10px; border:2px solid var(--line); border-radius:16px; cursor:pointer; font-weight:700; font-size:14px; text-align:center; transition:border-color .12s, background .12s; }
.pick label .big { font-size:28px; }
.pick input:checked + label { border-color:var(--blue); background:var(--lav); }
.pick input:focus-visible + label { outline:3px solid var(--gold); }

/* ---------- Dashboard ---------- */
.greet { margin:6px 0 14px; }
.greet .hi { color:var(--muted); font-size:14px; }
.greet h1 { font-size:26px; }
.streak-pill { display:flex; align-items:center; gap:9px; background:var(--white); border:1px solid var(--line); border-radius:14px; padding:12px 16px; margin-bottom:20px; box-shadow:var(--shadow-sm); }
.streak-pill .num { font-weight:800; font-size:16px; }
.streak-pill .lbl { color:var(--muted); font-size:13px; margin-right:auto; }
.xp-track { width:120px; height:7px; border-radius:7px; background:var(--line); overflow:hidden; }
.xp-track span { display:block; height:100%; background:linear-gradient(90deg,var(--blue),var(--magenta)); }
.xp-num { font-size:12.5px; font-weight:700; color:var(--muted); }
.level-chip { font-size:11px; font-weight:800; background:var(--blue-deep); color:var(--gold); padding:3px 9px; border-radius:999px; }

.subj-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
@media(min-width:820px){ .subj-grid { grid-template-columns:repeat(4,1fr); } }
.subj-card { background:var(--white); border:1px solid var(--line); border-radius:16px; padding:16px; display:flex; flex-direction:column; gap:9px; transition:transform .13s, box-shadow .13s; }
.subj-card:hover { transform:translateY(-3px); box-shadow:var(--shadow-md); }
.subj-ico { width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:20px; }
.si-blue{background:#E7EDFB;} .si-magenta{background:#FCE7F1;} .si-red{background:#FBE7E9;} .si-gold{background:#FDF2DC;}
.subj-name { font-weight:800; font-size:14.5px; }
.subj-pct { font-size:12px; color:var(--muted); text-align:right; }

.due-widget { display:flex; align-items:center; gap:12px; background:var(--lav); border-radius:16px; padding:16px 18px; margin:18px 0; }
.due-widget .n { font-size:26px; font-weight:800; color:var(--blue); }
.due-widget .t { font-size:14px; margin-right:auto; }

.quick-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
@media(min-width:820px){ .quick-grid { grid-template-columns:repeat(4,1fr); } }
.quick { display:flex; align-items:center; gap:9px; background:var(--white); border:1px solid var(--line); border-radius:13px; padding:13px 15px; font-weight:700; font-size:13.5px; transition:transform .12s; }
.quick:hover { transform:translateY(-2px); }

.challenge { display:flex; align-items:center; gap:11px; padding:11px 0; border-bottom:1px solid var(--line); font-size:14px; }
.challenge:last-child { border-bottom:0; }
.challenge .tick { width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;background:var(--line);flex:none; }
.challenge.done .tick { background:var(--green); color:#fff; }
.challenge .prog { margin-left:auto; font-size:12.5px; font-weight:700; color:var(--muted); white-space:nowrap; }

.announce { background:linear-gradient(120deg,var(--blue-deep),#1A3580); color:#fff; border-radius:16px; padding:16px 18px; margin-bottom:18px; }
.announce h3 { font-size:15px; margin-bottom:3px; }
.announce p { font-size:13.5px; color:rgba(255,255,255,.82); }

/* ---------- Courses ---------- */
.subj-tabs { display:flex; gap:8px; overflow-x:auto; padding-bottom:6px; margin-bottom:16px; }
.subj-tabs a { flex:none; font-weight:700; font-size:13.5px; padding:9px 16px; border-radius:999px; background:var(--white); border:1.5px solid var(--line); color:var(--muted); }
.subj-tabs a.on { background:var(--blue); border-color:var(--blue); color:#fff; }
.module { background:var(--white); border:1px solid var(--line); border-radius:16px; margin-bottom:12px; overflow:hidden; }
.module > summary { list-style:none; cursor:pointer; padding:16px 18px; font-weight:800; font-size:15px; display:flex; align-items:center; gap:10px; }
.module > summary::-webkit-details-marker { display:none; }
.module > summary .count { margin-left:auto; }
.module > summary .arrow { transition:transform .15s; color:var(--muted); }
.module[open] > summary .arrow { transform:rotate(90deg); }
.topic-row { border-top:1px solid var(--line); padding:12px 18px; }
.topic-row .tr-head { font-weight:700; font-size:13.5px; color:var(--muted); margin-bottom:6px; }
.st-link { display:flex; align-items:center; gap:9px; padding:9px 10px; border-radius:10px; font-size:14px; }
.st-link:hover { background:var(--canvas); }
.st-link .done { color:var(--green); }
.st-link .todo { color:var(--line); }

/* ---------- Notes ---------- */
.crumb { font-size:12.5px; color:var(--muted); margin-bottom:8px; }
.crumb a { color:var(--blue); font-weight:600; }
.note-body { background:var(--white); border:1px solid var(--line); border-radius:18px; padding:26px 26px 30px; }
.note-body h2 { font-size:20px; margin:22px 0 10px; font-family:var(--font-body); font-weight:800; }
.note-body h2:first-child { margin-top:0; }
.note-body h3 { font-size:16px; margin:18px 0 8px; }
.note-body p { margin-bottom:12px; font-size:15px; }
.note-body ul, .note-body ol { margin:0 0 14px 22px; font-size:15px; }
.note-body li { margin-bottom:5px; }
.note-body code { background:var(--lav); padding:2px 6px; border-radius:6px; font-size:13.5px; }
.table-wrap { overflow-x:auto; margin-bottom:14px; }
.note-body table { width:100%; border-collapse:collapse; font-size:14px; }
.note-body th { background:var(--lav); text-align:left; padding:9px 12px; font-size:12.5px; text-transform:uppercase; letter-spacing:.05em; }
.note-body td { padding:9px 12px; border-bottom:1px solid var(--line); }
.formula-box { background:#0D1F4E; color:#FFD98A; font-family:ui-monospace,Consolas,monospace; font-size:14px; border-radius:12px; padding:16px 18px; margin-bottom:14px; overflow-x:auto; }
.callout { background:#FDF2DC; border-left:4px solid var(--gold); border-radius:0 10px 10px 0; padding:12px 16px; font-size:14px; margin-bottom:14px; }
.note-img { max-width:100%; border-radius:12px; margin:8px 0; }
.note-actions { position:sticky; bottom:74px; display:flex; gap:10px; background:var(--white); border:1px solid var(--line); border-radius:16px; padding:12px 14px; margin-top:16px; box-shadow:var(--shadow-md); align-items:center; flex-wrap:wrap; }
@media(min-width:821px){ .note-actions { bottom:16px; } }

/* ---------- Exam setup ---------- */
.mode-grid { display:grid; grid-template-columns:1fr; gap:12px; }
@media(min-width:700px){ .mode-grid { grid-template-columns:repeat(3,1fr); } }

/* ---------- Exam taking ---------- */
.exam-top { position:sticky; top:0; z-index:50; background:var(--white); border-bottom:1px solid var(--line); padding:12px 0 0; }
.exam-top-inner { max-width:780px; margin:0 auto; padding:0 18px; }
.exam-meta { display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; }
.exam-count { font-weight:800; font-size:14.5px; }
.exam-timer { font-variant-numeric:tabular-nums; font-weight:800; font-size:17px; background:var(--lav); color:var(--blue); padding:5px 13px; border-radius:10px; }
.exam-timer.warn { background:#FDF2DC; color:#B5730A; }
.exam-timer.danger { background:#FBE7E9; color:var(--red); animation:pulse 1s infinite; }
@keyframes pulse { 50% { opacity:.55; } }
.exam-progressbar { height:5px; background:var(--line); }
.exam-progressbar span { display:block; height:100%; background:var(--blue); transition:width .2s; }
.exam-body { max-width:780px; margin:0 auto; padding:22px 18px 110px; }
.q-text { font-size:18.5px; font-weight:700; line-height:1.5; margin-bottom:20px; }
.flag-btn { float:right; background:none; border:1.5px solid var(--line); border-radius:10px; padding:6px 12px; cursor:pointer; font-size:13px; font-weight:700; color:var(--muted); }
.flag-btn.on { background:#FDF2DC; border-color:var(--gold); color:#9A6A05; }
.opt { display:flex; gap:13px; align-items:flex-start; width:100%; text-align:left; background:var(--white); border:2px solid var(--line); border-radius:14px; padding:15px 16px; margin-bottom:11px; cursor:pointer; font-size:15px; font-family:var(--font-body); transition:border-color .1s, background .1s; }
.opt .letter { flex:none; width:30px; height:30px; border-radius:9px; background:var(--lav); color:var(--blue); font-weight:800; display:flex; align-items:center; justify-content:center; }
.opt.sel { border-color:var(--blue); background:var(--lav); }
.opt.sel .letter { background:var(--blue); color:#fff; }
.exam-nav { position:fixed; bottom:0; left:0; right:0; background:var(--white); border-top:1px solid var(--line); padding:12px 18px calc(12px + env(safe-area-inset-bottom)); }
.exam-nav-inner { max-width:780px; margin:0 auto; display:flex; gap:10px; }
.exam-nav-inner .spacer { flex:1; }
.dots { display:flex; flex-wrap:wrap; gap:6px; margin:14px 0; }
.dot { width:30px; height:30px; border-radius:9px; border:1.5px solid var(--line); background:var(--white); font-size:12px; font-weight:700; cursor:pointer; color:var(--muted); }
.dot.answered { background:var(--lav); border-color:var(--blue); color:var(--blue); }
.dot.flagged { background:#FDF2DC; border-color:var(--gold); color:#9A6A05; }
.dot.now { outline:2px solid var(--blue); }

/* ---------- Results ---------- */
.score-hero { text-align:center; padding:30px 16px 22px; }
.score-badge { width:130px; height:130px; border-radius:50%; margin:0 auto 12px; display:flex; flex-direction:column; align-items:center; justify-content:center; color:#fff; font-weight:900; font-size:34px; font-family:var(--font-display); box-shadow:var(--shadow-md); }
.score-pass { background:radial-gradient(circle at 30% 25%, #2FBF71, var(--green)); }
.score-fail { background:radial-gradient(circle at 30% 25%, #E5484D, var(--red)); }
.score-badge small { font-size:12px; font-family:var(--font-body); font-weight:700; opacity:.9; }
.weak-row { margin-bottom:12px; }
.weak-row .wr-head { display:flex; justify-content:space-between; font-size:13.5px; font-weight:600; margin-bottom:5px; }
.review-q { border:1px solid var(--line); border-radius:14px; margin-bottom:10px; overflow:hidden; background:var(--white); }
.review-q summary { list-style:none; padding:13px 16px; cursor:pointer; display:flex; gap:10px; align-items:center; font-size:14px; font-weight:600; }
.review-q summary::-webkit-details-marker { display:none; }
.review-body { padding:0 16px 15px; font-size:14px; }
.ans-line { padding:8px 12px; border-radius:10px; margin-bottom:7px; }
.ans-correct { background:#E7F6EC; color:var(--green); font-weight:700; }
.ans-wrong { background:#FBE7E9; color:var(--red); font-weight:700; }
.explain { background:var(--canvas); border-radius:10px; padding:11px 13px; margin-top:8px; color:var(--ink); }

/* ---------- Flashcards ---------- */
.fc-stage { max-width:560px; margin:0 auto; }
.fc-scene { perspective:1200px; margin:14px 0; }
.fc-card { position:relative; width:100%; min-height:330px; transform-style:preserve-3d; transition:transform .5s cubic-bezier(.4,.1,.2,1); cursor:pointer; }
.fc-card.flipped { transform:rotateY(180deg); }
.fc-face { position:absolute; inset:0; backface-visibility:hidden; -webkit-backface-visibility:hidden; background:var(--white); border:1px solid var(--line); border-radius:22px; box-shadow:var(--shadow-md); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:30px 26px; text-align:center; }
.fc-front .term { font-size:22px; font-weight:800; }
.fc-front .hint { position:absolute; bottom:16px; font-size:12.5px; color:var(--muted); }
.fc-back { transform:rotateY(180deg); }
.fc-back .def { font-size:16.5px; line-height:1.6; }
.fc-type { position:absolute; top:14px; left:16px; }
.rate-row { display:grid; grid-template-columns:repeat(4,1fr); gap:9px; margin-top:14px; }
.rate-btn { border:0; border-radius:13px; padding:13px 6px; font-weight:800; font-size:14px; cursor:pointer; color:#fff; font-family:var(--font-body); transition:transform .1s; display:flex; flex-direction:column; gap:2px; align-items:center; }
.rate-btn small { font-weight:600; font-size:10.5px; opacity:.85; }
.rate-btn:hover { transform:translateY(-2px); }
.r-again { background:var(--red); } .r-hard { background:#E8890C; } .r-good { background:var(--green); } .r-easy { background:var(--blue); }
.fc-progress { display:flex; justify-content:space-between; font-size:13px; font-weight:700; color:var(--muted); }

/* ---------- Progress / tables ---------- */
.metric { text-align:center; padding:18px 10px; }
.metric .m-val { font-family:var(--font-display); font-weight:900; font-size:26px; color:var(--blue); }
.metric .m-lbl { font-size:12px; color:var(--muted); font-weight:600; }
.table { width:100%; border-collapse:collapse; font-size:14px; background:var(--white); border-radius:14px; overflow:hidden; }
.table th { background:var(--lav); text-align:left; padding:10px 13px; font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--blue-deep); }
.table td { padding:11px 13px; border-top:1px solid var(--line); }
.table-scroll { overflow-x:auto; border:1px solid var(--line); border-radius:14px; }
.trend-up { color:var(--green); font-weight:800; }
.trend-down { color:var(--red); font-weight:800; }
.donut-row { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; }
@media(max-width:820px){ .donut-row { grid-template-columns:1fr 1fr; } }
.donut { --p:0; --c:var(--blue); width:92px; height:92px; border-radius:50%; margin:0 auto 8px; background:conic-gradient(var(--c) calc(var(--p)*1%), var(--line) 0); display:flex; align-items:center; justify-content:center; }
.donut::after { content:attr(data-label); width:66px; height:66px; border-radius:50%; background:var(--white); display:flex; align-items:center; justify-content:center; font-weight:800; font-size:15px; }

/* ---------- Leaderboard ---------- */
.lb-row { display:flex; align-items:center; gap:13px; background:var(--white); border:1px solid var(--line); border-radius:14px; padding:12px 16px; margin-bottom:9px; }
.lb-rank { width:32px; font-weight:900; font-family:var(--font-display); font-size:18px; color:var(--muted); text-align:center; }
.lb-row.top1 { border-color:var(--gold); background:#FFFBF0; }
.lb-me { border-color:var(--blue); background:var(--lav); }
.lb-xp { margin-left:auto; font-weight:800; color:var(--blue); white-space:nowrap; }

/* ---------- Badges ---------- */
.badge-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(140px,1fr)); gap:11px; }
.badge-tile { background:var(--white); border:1px solid var(--line); border-radius:15px; padding:15px 10px; text-align:center; }
.badge-tile .b-ico { font-size:29px; }
.badge-tile .b-name { font-weight:800; font-size:12.5px; margin-top:5px; }
.badge-tile .b-how { font-size:11px; color:var(--muted); }
.badge-tile.locked { opacity:.42; filter:grayscale(1); }

/* ---------- Admin ---------- */
.admin-grid { display:grid; grid-template-columns:220px 1fr; gap:20px; align-items:start; }
@media(max-width:900px){ .admin-grid { grid-template-columns:1fr; } }
.admin-side { background:var(--white); border:1px solid var(--line); border-radius:16px; padding:10px; position:sticky; top:76px; }
.admin-side a { display:block; padding:10px 13px; border-radius:10px; font-weight:600; font-size:14px; color:var(--muted); }
.admin-side a.on, .admin-side a:hover { background:var(--lav); color:var(--blue); }
.inline-form { display:flex; gap:8px; flex-wrap:wrap; align-items:center; }
.inline-form input, .inline-form select { padding:8px 11px; border:1.5px solid var(--line); border-radius:9px; font-size:14px; }
.tree-item { padding:6px 0 6px 14px; border-left:2px solid var(--line); margin-left:6px; }

/* ---------- Certificate ---------- */
.cert { background:#fff; border:10px solid var(--blue-deep); outline:3px solid var(--gold); outline-offset:-18px; border-radius:6px; max-width:760px; margin:20px auto; padding:56px 48px; text-align:center; }
.cert h1 { font-size:34px; color:var(--blue-deep); }
.cert .c-name { font-family:var(--font-display); font-size:30px; color:var(--magenta); margin:14px 0; }
@media print { .topbar, .bottomnav, .no-print { display:none !important; } body { background:#fff; } .page { padding:0; } }

.empty { text-align:center; padding:40px 16px; color:var(--muted); }
.empty .e-ico { font-size:40px; display:block; margin-bottom:8px; }