@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,wght@0,500;0,600;1,500;1,600&display=swap');
/* ═══════════════════════════════════════════════════════════════
   EM DOCBOX — shared tier-modal guideline system (v2)
   Used by all 17 specialty guideline pages (cardiology … ophthalmology).
   Inherits base tokens + nav-mark/brand from emdocbox-v2.css; this file
   adds the tier-modal components (header, filter bar, tier grid, cards,
   modal) on v2 tokens, Inter typography, and a mobile-maximized layout
   (bottom-sheet modals, full-bleed cards, horizontal-scroll filters,
   large tap targets). Each page sets only --accent (+ light variant) and
   any page-specific tier colours inline. No light-theme !important block —
   v2 tokens remap automatically.
   Link order per page:  emdocbox-v2.css → emdocbox-tier.css → inline accent
   ═══════════════════════════════════════════════════════════════ */

:root{ --accent:var(--red); --accent-glow:var(--red-glow); --accent-dim:var(--red-dim); }

/* ── NAV (these pages use .nav-wm/.nav-r; v2 owns .nav-mark) ──── */
.nav-logo{display:flex;align-items:center;gap:9px;text-decoration:none;flex-shrink:0;}
.nav-wm{font-family:'Bebas Neue',sans-serif;font-size:21px;letter-spacing:1.5px;color:var(--text);}
.nav-wm span{color:var(--red);}
.nav-r{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.nav-back{font-family:var(--sans);font-size:13.5px;font-weight:500;color:var(--text3);text-decoration:none;padding:6px 12px;border-radius:8px;white-space:nowrap;transition:all .15s;}
.nav-back:hover{color:var(--text);background:var(--surface2);}
.nav-back:focus-visible{outline:none;color:var(--text);background:var(--surface2);box-shadow:0 0 0 2px var(--red-glow);}

/* ── PAGE HEADER ──────────────────────────────────────────────── */
.page-header{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:42px 32px 30px;border-bottom:1px solid var(--border);}
.page-ey{font-family:var(--sans);font-size:11.5px;font-weight:600;letter-spacing:.02em;color:var(--accent);margin-bottom:10px;display:flex;align-items:center;gap:8px;}
.page-ey::before{content:'';width:16px;height:1px;background:var(--accent);}
.page-ttl{font-family:'Source Serif 4',Georgia,serif;font-size:clamp(27px,4.5vw,42px);font-weight:600;letter-spacing:-.01em;line-height:1.1;color:var(--text);margin-bottom:12px;}
.page-ttl span{color:var(--accent);font-style:italic;}
.page-sub{font-size:14.5px;color:var(--text3);line-height:1.6;max-width:680px;}
.page-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px;}
.meta-pill{font-family:var(--sans);font-size:11.5px;font-weight:500;color:var(--text3);background:var(--surface);border:1px solid var(--border);padding:5px 12px;border-radius:8px;display:inline-flex;align-items:center;gap:6px;}
.meta-pill.live{color:var(--green);border-color:color-mix(in srgb,var(--green) 30%,transparent);background:var(--green-dim);}
.meta-pill.live::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--green);animation:pulse 1.8s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.45;}}

/* ── FILTER BAR ───────────────────────────────────────────────── */
.filter-bar{position:sticky;top:var(--nav-h,60px);z-index:100;background:var(--bar-bg);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--border);padding:13px 24px;}
.filter-inner{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;gap:11px;}
.search-wrap{position:relative;width:100%;}
.search-ic{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text4);pointer-events:none;}
.search-in{width:100%;padding:11px 14px 11px 42px;background:var(--surface);border:1px solid var(--border2);border-radius:11px;color:var(--text);font-size:15px;font-family:var(--sans);outline:none;transition:border-color .15s,box-shadow .15s;}
.search-in:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-dim);}
.search-in::placeholder{color:var(--text4);}
.cat-pills{display:flex;flex-wrap:wrap;gap:7px;}
.cat-pill{font-family:var(--sans);font-size:12.5px;font-weight:500;color:var(--text3);background:transparent;border:1px solid var(--border2);padding:7px 13px;border-radius:9px;cursor:pointer;transition:all .15s;display:inline-flex;align-items:center;gap:7px;white-space:nowrap;}
.cat-pill:hover{border-color:var(--border3);color:var(--text);background:var(--surface2);}
.cat-pill.active{background:var(--accent-dim);border-color:var(--accent);color:var(--accent);font-weight:600;}
.cat-pill .ct{font-size:10.5px;opacity:.7;font-weight:400;}
.cat-pill.all.active{background:var(--red-dim);border-color:var(--red);color:var(--red);}

/* ── MAIN / TIER GRID ─────────────────────────────────────────── */
main{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:30px 24px 80px;}
.tier-block{margin-bottom:38px;}
.tier-head{display:flex;align-items:baseline;gap:12px;margin-bottom:15px;flex-wrap:wrap;}
.tier-icon{display:inline-flex;align-items:center;justify-content:center;line-height:0;color:var(--tier-color,var(--accent));}
.tier-icon .ic{width:18px;height:18px;vertical-align:middle;}
.tier-name{font-family:var(--sans);font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--text);}
.tier-sub{font-family:var(--sans);font-size:12.5px;font-weight:500;color:var(--text4);}
.tier-line{flex:1;height:1px;background:var(--border);min-width:40px;align-self:center;}
.tier-count{font-family:var(--sans);font-size:11.5px;color:var(--text4);font-variant-numeric:tabular-nums;}

.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;}
.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:17px 19px;cursor:pointer;position:relative;overflow:hidden;transition:border-color .18s,transform .18s cubic-bezier(.4,0,.2,1),box-shadow .18s;}
.card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--tier-color,var(--accent));opacity:.85;}
.card:hover{border-color:var(--border2);transform:translateY(-2px);box-shadow:var(--card-shadow);}
.card.tier-1{--tier-color:var(--red);}
.card.tier-2{--tier-color:var(--amber);}
.card.tier-3{--tier-color:var(--accent);}
.card.tier-4{--tier-color:var(--blue);}
.card.tier-5{--tier-color:var(--purple);}
.card.tier-6{--tier-color:var(--pink);}
.card-flag{font-family:var(--sans);font-size:11px;font-weight:600;letter-spacing:.02em;color:var(--tier-color,var(--accent));margin-bottom:9px;display:flex;align-items:center;gap:6px;}
.card-flag .ic{margin-right:1px;}
.card-name{font-family:var(--sans);font-size:17px;font-weight:650;letter-spacing:-.012em;color:var(--text);line-height:1.2;margin-bottom:6px;}
.card-alias{font-size:12px;color:var(--text4);margin-bottom:9px;font-style:italic;}
.card-hero{font-size:13px;color:var(--text2);line-height:1.55;}
.card-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:11px;}
.card-tag{font-family:var(--sans);font-size:10.5px;font-weight:500;color:var(--text3);background:var(--surface2);padding:3px 8px;border-radius:6px;}
.card-tag.crit{color:var(--red);background:var(--red-dim);font-weight:600;}

/* ── EMPTY STATE ──────────────────────────────────────────────── */
.empty{text-align:center;padding:60px 20px;color:var(--text3);}
.empty-ic{margin-bottom:12px;opacity:.4;}
.empty-msg{font-size:15px;margin-bottom:6px;color:var(--text2);}
.empty-sub{font-size:13px;color:var(--text4);}

/* ── MODAL ────────────────────────────────────────────────────── */
.modal-overlay{position:fixed;inset:0;z-index:1000;background:rgba(0,0,0,.72);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:none;align-items:flex-start;justify-content:center;padding:24px 12px;overflow-y:auto;}
[data-theme="light"] .modal-overlay{background:rgba(15,23,42,.4);}
.modal-overlay.show{display:flex;animation:fadeIn .2s ease;}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
.modal{width:100%;max-width:820px;background:var(--surface);border:1px solid var(--border2);border-radius:18px;overflow:hidden;position:relative;display:flex;flex-direction:column;max-height:calc(100vh - 48px);animation:slideUp .28s cubic-bezier(.4,0,.2,1);box-shadow:0 24px 64px rgba(0,0,0,.4);}
[data-theme="light"] .modal{box-shadow:0 24px 64px rgba(15,23,42,.18);}
@keyframes slideUp{from{opacity:0;transform:translateY(20px);}to{opacity:1;transform:translateY(0);}}
@keyframes sheetUp{from{transform:translateY(100%);}to{transform:translateY(0);}}
.modal-head{padding:22px 24px;background:linear-gradient(180deg,var(--surface2),var(--surface));border-bottom:1px solid var(--border);position:relative;flex-shrink:0;}
.modal-head.t1{border-top:3px solid var(--red);}
.modal-head.t2{border-top:3px solid var(--amber);}
.modal-head.t3{border-top:3px solid var(--accent);}
.modal-head.t4{border-top:3px solid var(--blue);}
.modal-head.t5{border-top:3px solid var(--purple);}
.modal-head.t6{border-top:3px solid var(--pink);}
.modal-close{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:9px;border:1px solid var(--border2);background:var(--surface);cursor:pointer;color:var(--text3);display:flex;align-items:center;justify-content:center;transition:all .15s;}
.modal-close:hover{background:var(--surface3);color:var(--text);border-color:var(--border3);}
.modal-flag{font-family:var(--sans);font-size:10.5px;font-weight:600;letter-spacing:.02em;margin-bottom:8px;display:flex;align-items:center;gap:7px;padding-right:48px;}
.modal-flag.red{color:var(--red);}
.modal-flag.amber{color:var(--amber);}
.modal-flag.teal{color:var(--accent);}
.modal-flag.blue{color:var(--blue);}
.modal-flag.purple{color:var(--purple);}
.modal-flag.pink{color:var(--pink);}
.modal-flag .ic{margin-right:1px;}
.modal-ttl{font-family:var(--sans);font-size:24px;font-weight:700;letter-spacing:-.015em;color:var(--text);line-height:1.12;margin-bottom:6px;padding-right:48px;}
.modal-alias{font-size:13px;color:var(--text4);font-style:italic;}
.modal-hero{margin-top:14px;padding:13px 16px;background:var(--surface2);border-left:3px solid var(--accent);border-radius:7px;font-size:15px;color:var(--text2);line-height:1.65;}
.modal-head.t1 .modal-hero{border-left-color:var(--red);}
.modal-head.t2 .modal-hero{border-left-color:var(--amber);}
.modal-head.t4 .modal-hero{border-left-color:var(--blue);}
.modal-head.t5 .modal-hero{border-left-color:var(--purple);}
.modal-head.t6 .modal-hero{border-left-color:var(--pink);}

.modal-body{padding:24px 26px;overflow-y:auto;flex:1;min-height:0;}
.sect{margin-bottom:23px;}
.sect:last-child{margin-bottom:0;}
.sect-hd{font-family:var(--sans);font-size:12.5px;font-weight:650;letter-spacing:.01em;color:var(--accent);margin-bottom:11px;display:flex;align-items:center;gap:8px;}
.sect-hd::before{content:'';width:12px;height:1px;background:var(--accent);}
.sect-body{font-size:15px;color:var(--text2);line-height:1.72;}
.sect-body strong{color:var(--text);font-weight:600;}
.sect-body ul{list-style:none;padding:0;margin:0;}
.sect-body li{padding:5px 0 5px 20px;position:relative;}
.sect-body li::before{content:'';position:absolute;left:5px;top:14px;width:5px;height:5px;border-radius:50%;background:var(--text4);}
.sect-body li strong{color:var(--text);}

/* callouts */
.callout{padding:13px 16px;border-radius:8px;margin-top:12px;font-size:15px;line-height:1.65;border-left:3px solid;}
.callout strong{color:var(--text);}
.callout.warn{background:var(--red-dim);border-left-color:var(--red);color:var(--text2);}
.callout.tip{background:var(--accent-dim);border-left-color:var(--accent);color:var(--text2);}
.callout.caution{background:var(--amber-dim);border-left-color:var(--amber);color:var(--text2);}

.rx-box{background:var(--accent-dim);border:1px solid color-mix(in srgb,var(--accent) 24%,transparent);border-radius:8px;padding:13px 16px;margin-top:12px;}
.rx-title{font-family:var(--sans);font-size:11.5px;font-weight:600;letter-spacing:.01em;color:var(--accent);margin-bottom:7px;}
.rx-dose{font-size:15px;color:var(--text);line-height:1.65;font-weight:500;}

.pearl{background:var(--purple-dim);border-left:3px solid var(--purple);padding:12px 16px 12px 40px;margin-top:12px;border-radius:6px;font-size:14.5px;color:var(--text2);line-height:1.65;position:relative;}
.pearl::before{content:'';position:absolute;left:16px;top:14px;width:14px;height:14px;background:currentColor;color:var(--purple);-webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M6 3h12l4 6-10 13L2 9z'/><path d='M11 3 8 9l4 13 4-13-3-6'/><path d='M2 9h20'/></svg>") no-repeat center / contain;mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M6 3h12l4 6-10 13L2 9z'/><path d='M11 3 8 9l4 13 4-13-3-6'/><path d='M2 9h20'/></svg>") no-repeat center / contain;}
.pearl strong{color:var(--text);}

/* SVG icon helper */
.ic{width:13px;height:13px;display:inline-block;vertical-align:-2px;flex-shrink:0;stroke:currentColor;fill:none;}
.ic-lg{width:18px;height:18px;vertical-align:-3px;}
.ic-xl{width:44px;height:44px;opacity:.35;}

.evidence{font-family:var(--sans);font-size:12px;color:var(--text4);line-height:1.65;padding-top:13px;margin-top:18px;border-top:1px dashed var(--border);}

/* ── MOBILE MAXIMISED ─────────────────────────────────────────── */
@media(max-width:768px){
  .filter-bar{top:var(--nav-h,54px);padding:11px 14px;}
  /* category pills become a single horizontal-scroll row — saves vertical space */
  .cat-pills{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;margin:0 -14px;padding:0 14px 2px;scroll-padding:0 14px;-webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 22px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 22px),transparent);}
  .cat-pills::-webkit-scrollbar{display:none;}
  .cat-pill{flex-shrink:0;padding:9px 14px;min-height:44px;}
  .search-in{padding:12px 14px 12px 42px;}
}
@media(max-width:640px){
  .page-header{padding:26px 18px 22px;}
  .page-meta{gap:7px;margin-top:14px;}
  main{padding:22px 14px 64px;}
  .card-grid{grid-template-columns:1fr;gap:11px;}
  .card{padding:16px 17px;}
  .card-name{font-size:17px;}
  .tier-name{font-size:17px;}
  /* Bottom-sheet modal — slides up from the bottom edge, full width */
  .modal-overlay{align-items:flex-end;justify-content:stretch;padding:0;overflow:hidden;}
  .modal{max-width:100%;max-height:92vh;border-radius:20px 20px 0 0;border-left:none;border-right:none;border-bottom:none;animation:sheetUp .3s cubic-bezier(.4,0,.2,1);}
  .modal::before{content:'';display:block;width:40px;height:5px;border-radius:3px;background:var(--border3);margin:8px auto -2px;flex-shrink:0;}
  .modal-head{padding:16px 18px 18px;}
  .modal-close{top:12px;right:12px;width:44px;height:44px;}
  .modal-ttl{font-size:22px;padding-right:44px;}
  .modal-body{padding:18px;padding-bottom:calc(18px + env(safe-area-inset-bottom,0px));}
}

/* iOS zoom guard + dvh */
@media(max-width:768px){input,textarea,select{font-size:16px!important;}html,body{min-height:100dvh;}}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;}
html,body{overscroll-behavior-y:contain;}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important;}
}