/* shared/theme.css — Design token กลางของ OCCMED (navy × gold, LINE Seed Sans TH)
   ยกมาจาก walk-through เพื่อให้ทุกโมดูลหน้าตาเดียวกัน · ห้ามเปลี่ยน CI */

@font-face{
  font-family:'LINE Seed Sans TH';
  src:url('https://cdn.jsdelivr.net/gh/lazywasabi/thai-web-fonts@7/fonts/LINESeedSansTH/LINESeedSansTH-Regular.woff2') format('woff2');
  font-weight:400;font-display:swap;
}
@font-face{
  font-family:'LINE Seed Sans TH';
  src:url('https://cdn.jsdelivr.net/gh/lazywasabi/thai-web-fonts@7/fonts/LINESeedSansTH/LINESeedSansTH-Bold.woff2') format('woff2');
  font-weight:700;font-display:swap;
}
@font-face{
  font-family:'LINE Seed Sans TH';
  src:url('https://cdn.jsdelivr.net/gh/lazywasabi/thai-web-fonts@7/fonts/LINESeedSansTH/LINESeedSansTH-ExtraBold.woff2') format('woff2');
  font-weight:800;font-display:swap;
}

:root{
  --navy:#0B2545; --navy2:#13315C; --navy-soft:#1D3B63;
  --gold:#C8A046; --gold-lt:#E4C877; --gold-dk:#A67C24;
  --ink:#1a2233; --muted:#5b6678; --line:#dfe4ec; --line2:#eef1f6;
  --bg:#f4f6fa; --card:#ffffff;
  --ok:#137a4b; --ok-bg:#e6f4ec;
  --over:#c0392b; --over-bg:#fbeae7;
  --acc:#8896ab;
  --shadow:0 1px 2px rgba(11,37,69,.06),0 8px 24px rgba(11,37,69,.06);
  --radius:14px;
  /* font stack กลาง: LINE Seed → IBM Plex Sans Thai → Noto Sans Thai → Sarabun */
  --font:'LINE Seed Sans TH','IBM Plex Sans Thai','Noto Sans Thai','Sarabun',sans-serif;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--bg);color:var(--ink);line-height:1.55;font-size:15px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--navy)}
a{color:var(--navy2)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:inherit;font-size:16px}

/* ---------- shell: แถบหัวกลางของ OCCMED ---------- */
.occ-topbar{
  position:sticky;top:0;z-index:50;background:var(--navy);color:#fff;
  padding:10px 16px;display:flex;align-items:center;gap:12px;
  box-shadow:0 2px 10px rgba(11,37,69,.25);
}
.occ-topbar .mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--gold),var(--gold-dk));
  display:grid;place-items:center;color:var(--navy);font-weight:800;font-size:15px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);
}
.occ-topbar b{font-size:15px;color:#fff;display:block;letter-spacing:.2px;line-height:1.2}
.occ-topbar small{font-size:11px;color:var(--gold-lt);letter-spacing:1.5px;text-transform:uppercase;display:block}
.occ-topbar .sp{flex:1}
.occ-back{color:#dbe4f0;font-size:13px;padding:7px 11px;border-radius:9px;border:1px solid rgba(255,255,255,.16);white-space:nowrap;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.occ-back:hover{background:rgba(255,255,255,.09);color:#fff}

/* ---------- ปุ่ม / การ์ด ที่ใช้ซ้ำ ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:11px;font-weight:600;font-size:14px;border:1px solid var(--line);background:#fff;color:var(--ink)}
.btn.pri{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn.gold{background:var(--gold);color:var(--navy);border-color:var(--gold);font-weight:700}
.btn:disabled{opacity:.5;cursor:default}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}

.wrap{max-width:940px;margin:0 auto;padding:18px 16px 60px}

/* ---------- formula sheet: แสดงสูตรคำนวณ + แทนค่าสด ---------- */
.fsheet{display:flex;flex-direction:column;gap:10px}
.fmeta{font-size:12.5px;color:var(--muted);margin-bottom:2px;line-height:1.5}
.fitem{background:#fff;border:1px solid var(--line);border-radius:11px;padding:11px 13px 12px}
.fitem .fdef{font-size:12px;color:var(--muted);margin-bottom:8px;line-height:1.5}
.fitem .fdef .fname{color:var(--navy2);font-weight:600}
.fitem .fdef .fsub{font-size:.78em;vertical-align:sub;color:var(--acc)}
.fcalc{display:flex;align-items:center;flex-wrap:wrap;gap:7px 8px;font-size:15px;color:var(--navy2)}
.fcalc .flabel{font-weight:800;color:var(--navy);min-width:40px;font-size:15px}
.fcalc .feq{color:var(--acc);font-weight:600}
.fcalc .fnote{font-size:.85em;color:var(--muted)}
.frac{display:inline-flex;flex-direction:column;text-align:center;line-height:1.15;vertical-align:middle}
.frac .num{padding:0 10px 3px;border-bottom:2px solid var(--navy2)}
.frac .den{padding:3px 10px 0}
.fres{font-weight:800;color:var(--navy);background:var(--line2);border-radius:7px;padding:2px 11px;white-space:nowrap}
.fres.hl{background:var(--gold);color:var(--navy)}

/* ---------- โจทย์ตัวอย่าง + วิธีทำ (example viewer ใช้ร่วม) ---------- */
.ex-wrap{margin-top:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.ex-sum{cursor:pointer;padding:14px 16px;font-weight:700;color:var(--navy);font-size:15.5px;list-style:none;display:flex;align-items:center;gap:9px}
.ex-sum::-webkit-details-marker{display:none}
.ex-sum::before{content:'';width:8px;height:8px;border-right:2px solid var(--gold-dk);border-bottom:2px solid var(--gold-dk);transform:rotate(-45deg);transition:transform .15s;flex:none}
.ex-wrap[open]>.ex-sum::before{transform:rotate(45deg)}
.ex-count{margin-left:auto;font-size:12px;font-weight:600;color:var(--muted);background:var(--line2);border-radius:20px;padding:2px 10px;white-space:nowrap}
.ex-src{padding:0 16px 10px;font-size:12px;color:var(--muted)}
.ex-list{padding:2px 12px 12px;display:flex;flex-direction:column;gap:8px}
.ex-q{border:1px solid var(--line);border-radius:11px;background:var(--bg);overflow:hidden}
.ex-qsum{cursor:pointer;padding:11px 13px;list-style:none;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ex-qsum::-webkit-details-marker{display:none}
.ex-tag{font-weight:800;color:var(--gold-dk);font-size:13px;flex:none}
.ex-title{font-size:13px;color:var(--navy2);flex:1 1 130px;min-width:0}
.ex-pill{font-size:12px;font-weight:700;color:var(--navy);background:var(--gold-lt);border-radius:20px;padding:2px 10px;white-space:nowrap}
.ex-body{padding:0 13px 14px}
.ex-block{margin-top:12px}
.ex-h{font-size:11px;font-weight:800;letter-spacing:.8px;color:var(--gold-dk);margin-bottom:6px}
.ex-text{font-size:13.5px;color:var(--navy2);line-height:1.75}
.ex-answer .ex-ans{font-weight:800;color:var(--navy);background:var(--line2);border-radius:9px;padding:9px 13px;display:inline-block;font-size:14px;line-height:1.6}
.ex-copy{margin-top:14px}
@media print{.ex-wrap{display:none!important}}

/* ---------- ปุ่มหน้าแรก (home) + แผงรวมค่าในตัว (pagekit) ---------- */
.occ-home{color:#dbe4f0;font-size:13px;padding:7px 11px;border-radius:9px;border:1px solid rgba(255,255,255,.16);white-space:nowrap;text-decoration:none;display:inline-flex;align-items:center;gap:6px;margin-right:8px}
.occ-home:hover{background:rgba(255,255,255,.09);color:#fff}
@media(max-width:430px){.occ-home span{display:none}.occ-home{padding:7px 9px}}
.occ-reset{color:#dbe4f0;font-size:13px;padding:7px 11px;border-radius:9px;border:1px solid rgba(255,255,255,.16);white-space:nowrap;cursor:pointer;font-family:inherit;font-weight:500;background:transparent;display:inline-flex;align-items:center;gap:6px;margin-right:8px}
.occ-reset:hover{background:rgba(255,255,255,.09);color:#fff}
@media print{.occ-reset{display:none!important}}
/* กันปุ่มล้น topbar บนจอแคบ: ให้ชื่อเรื่องหดได้ (ellipsis) · ปุ่มไม่ถูกบีบ */
.occ-topbar > div:not([class]){min-width:0}
.occ-topbar b,.occ-topbar small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
.occ-reset,.occ-home,.occ-back{flex:0 0 auto}
@media(max-width:480px){
  .occ-topbar{gap:8px;padding:10px 12px}
  .occ-reset span,.occ-home span{display:none}
  .occ-reset,.occ-home{padding:7px 9px;margin-right:6px}
  .occ-back{font-size:12px;padding:7px 9px}
}
.cv-wrap .cv-body{padding:2px 15px 15px}
.cv-hint{font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:4px}
.cv-rows{margin-top:10px;display:flex;flex-direction:column;gap:8px}
.cv-row{display:flex;align-items:center;gap:8px}
.cv-idx{flex:0 0 auto;width:26px;height:26px;border-radius:7px;background:var(--line2);color:var(--navy);font-weight:700;font-size:13px;display:grid;place-items:center}
.cv-row input{flex:1;padding:9px 11px;border:1px solid var(--line);border-radius:9px;font-size:16px;background:#fff}
.cv-rm{flex:0 0 auto;width:30px;height:30px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:18px;cursor:pointer;line-height:1}
.cv-rm:hover{border-color:#e0b4b4;color:#c0392b}