/* ============================================
   CARDIOBOYO MEDNOTES — STYLES
   Design system inherited from Emergency Assist
   ============================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}

:root{
  /* Brand red */
  --red:#C0392B;--red-d:#A93226;--red-s:#FAECEA;--red-m:rgba(192,57,43,.10);
  /* Navy dark surface */
  --navy:#0F1B2D;--navy2:#162236;--navy3:#1E3050;
  /* Navy text/borders on dark */
  --nb:rgba(255,255,255,.08);--nt:rgba(255,255,255,.92);--nt2:rgba(255,255,255,.55);--nt3:rgba(255,255,255,.28);
  --ns:rgba(255,255,255,.06);--ns2:rgba(255,255,255,.11);
  /* Semantic */
  --green:#0F6E56;--green-s:#E6F5F1;--green-m:rgba(15,110,86,.10);
  --amber:#B45309;--amber-s:#FEF3C7;--amber-m:rgba(180,83,9,.10);
  --blue:#185FA5;--blue-s:#EBF3FC;--blue-m:rgba(24,95,165,.10);
  --purple:#6741D9;--purple-s:#F3F0FF;
  /* Greys */
  --w:#fff;--g50:#F8F9FA;--g100:#F1F3F5;--g200:#E9ECEF;--g300:#DEE2E6;--g400:#ADB5BD;--g500:#6C757D;
  /* Text */
  --tx:#0F1B2D;--tx2:#495057;--tx3:#868E96;--bd:#E9ECEF;--bd2:#DEE2E6;
  /* Shadows */
  --sh1:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --sh2:0 4px 14px rgba(0,0,0,.08),0 2px 4px rgba(0,0,0,.04);
  --sh3:0 12px 32px rgba(0,0,0,.10);
  /* Fonts */
  --f:'Sora',sans-serif;--m:'DM Mono',monospace;
  /* Layout */
  --nh:56px;--bh:62px;--r:10px;--rl:14px;
}

html,body{height:100%;overflow:hidden;background:#111827;}
body{font-family:var(--f);-webkit-font-smoothing:antialiased;}

#app{
  display:flex;flex-direction:column;height:100%;max-width:430px;
  margin:0 auto;background:var(--g50);overflow:hidden;
  box-shadow:0 0 80px rgba(0,0,0,.5);position:relative;
}

/* ============================================
   TOP BAR (inherited)
   ============================================ */
#topbar{
  height:var(--nh);flex-shrink:0;background:var(--navy);
  border-bottom:1px solid var(--nb);padding:0 14px;
  display:flex;align-items:center;justify-content:space-between;
  z-index:100;position:relative;
}
.tb-l{display:flex;align-items:center;gap:9px;flex:1;min-width:0;}
.tb-back{
  width:34px;height:34px;border-radius:8px;border:1px solid var(--nb);
  background:var(--ns);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .15s;flex-shrink:0;
}
.tb-back:hover{background:var(--ns2);}
.tb-back svg{width:15px;height:15px;stroke:var(--nt);fill:none;stroke-width:2.3;}
.tb-brand{display:flex;align-items:center;gap:8px;min-width:0;}
.tb-logo{
  width:30px;height:30px;background:var(--red);border-radius:8px;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  box-shadow:0 2px 8px rgba(192,57,43,.4);
}
.tb-logo svg{width:14px;height:14px;fill:white;}
.tb-titles{min-width:0;}
.tb-title{font-size:13px;font-weight:600;color:var(--nt);letter-spacing:-.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.tb-sub{font-size:10px;color:var(--nt2);font-weight:300;margin-top:1px;}
.tb-r{display:flex;align-items:center;gap:6px;flex-shrink:0;}
.tb-ver{
  font-size:9px;font-family:var(--m);color:#1D9E75;
  background:rgba(29,158,117,.15);border:1px solid rgba(29,158,117,.25);
  padding:3px 8px;border-radius:20px;
}
.tb-btn{
  width:34px;height:34px;border-radius:8px;border:1px solid var(--nb);
  background:var(--ns);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .15s;
}
.tb-btn:hover{background:var(--ns2);}
.tb-btn svg{width:15px;height:15px;stroke:var(--nt2);fill:none;stroke-width:1.9;}

/* ============================================
   CONTENT AREA
   ============================================ */
#content{
  flex:1;overflow-y:auto;overflow-x:hidden;
  -webkit-overflow-scrolling:touch;scroll-behavior:smooth;
  padding-bottom:var(--bh);
}
#content::-webkit-scrollbar{display:none;}

/* ============================================
   SCREENS
   ============================================ */
.screen{display:none;}
.screen.active{display:block;animation:sIn .2s ease both;}
@keyframes sIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

/* ============================================
   BOTTOM NAVIGATION (new component)
   ============================================ */
#botnav{
  height:var(--bh);flex-shrink:0;background:var(--w);
  border-top:1px solid var(--bd);display:flex;
  z-index:90;
}
.bn{
  flex:1;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:3px;cursor:pointer;
  transition:all .15s;position:relative;padding:6px 0 4px;
}
.bn-ico{width:22px;height:22px;display:flex;align-items:center;justify-content:center;}
.bn-ico svg{width:20px;height:20px;stroke:var(--g400);fill:none;stroke-width:1.9;transition:stroke .15s;}
.bn-lbl{font-size:9px;font-family:var(--m);color:var(--tx3);
  font-weight:500;letter-spacing:.02em;transition:color .15s;}
.bn.active .bn-ico svg{stroke:var(--red);stroke-width:2.1;}
.bn.active .bn-lbl{color:var(--red);font-weight:600;}
.bn.locked{cursor:default;}
.bn.locked .bn-ico svg{stroke:var(--g400);opacity:.55;}
.bn.locked .bn-lbl{color:var(--tx3);opacity:.7;}
.bn-lock{
  position:absolute;top:6px;right:50%;transform:translateX(14px);
  width:11px;height:11px;background:var(--g400);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
}
.bn-lock svg{width:6px;height:6px;stroke:white;fill:none;stroke-width:2.5;}
.bn-soon{font-size:7px;font-family:var(--m);color:var(--tx3);
  margin-top:-1px;letter-spacing:.05em;opacity:.65;}

/* Hide bottom nav on auth screens */
#app.no-nav #botnav{display:none;}
#app.no-nav #topbar{display:none;}
#app.no-nav #content{padding-bottom:0;}

/* ============================================
   ALERTS (inherited)
   ============================================ */
.alert{display:flex;gap:8px;align-items:flex-start;border-radius:var(--r);
  padding:10px 12px;border:1px solid;margin-bottom:6px;}
.alert.crit{background:var(--red-s);border-color:rgba(192,57,43,.2);}
.alert.warn{background:var(--amber-s);border-color:rgba(180,83,9,.18);}
.alert.info{background:var(--blue-s);border-color:rgba(24,95,165,.15);}
.alert.good{background:var(--green-s);border-color:rgba(15,110,86,.18);}
.al-i{width:13px;height:13px;flex-shrink:0;margin-top:1px;}
.al-i svg{width:13px;height:13px;fill:none;stroke-width:2.2;}
.alert.crit .al-i svg{stroke:var(--red);}
.alert.warn .al-i svg{stroke:var(--amber);}
.alert.info .al-i svg{stroke:var(--blue);}
.alert.good .al-i svg{stroke:var(--green);}
.al-t{font-size:11px;line-height:1.5;}
.alert.crit .al-t{color:#991b1b;}
.alert.warn .al-t{color:#92400e;}
.alert.info .al-t{color:#1e40af;}
.alert.good .al-t{color:#065f46;}

/* ============================================
   SPLASH SCREEN
   ============================================ */
#s-splash{
  background:var(--navy);min-height:100%;display:flex;
  flex-direction:column;align-items:center;justify-content:center;
  padding:40px 24px;
}
.sp-logo{
  width:72px;height:72px;background:var(--red);border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:24px;box-shadow:0 6px 28px rgba(192,57,43,.45);
  animation:spPulse 2s ease-in-out infinite;
}
@keyframes spPulse{0%,100%{transform:scale(1);}50%{transform:scale(1.05);}}
.sp-logo svg{width:36px;height:36px;fill:white;}
.sp-name{font-size:22px;font-weight:700;color:var(--nt);
  letter-spacing:-.02em;margin-bottom:8px;}
.sp-tag{font-size:13px;color:var(--nt2);font-weight:300;letter-spacing:.02em;}
.sp-loader{
  margin-top:36px;width:36px;height:4px;background:var(--ns);
  border-radius:2px;overflow:hidden;position:relative;
}
.sp-loader::after{
  content:'';position:absolute;top:0;left:0;width:50%;height:100%;
  background:var(--red);border-radius:2px;
  animation:spLoad 1.2s ease-in-out infinite;
}
@keyframes spLoad{0%{left:-50%;}100%{left:100%;}}

/* ============================================
   ONBOARDING SCREENS
   ============================================ */
#s-onboarding{background:var(--navy);min-height:100%;display:flex;
  flex-direction:column;}
.ob-slides{flex:1;overflow-x:auto;display:flex;scroll-snap-type:x mandatory;
  scrollbar-width:none;}
.ob-slides::-webkit-scrollbar{display:none;}
.ob-slide{
  flex:0 0 100%;scroll-snap-align:center;display:flex;
  flex-direction:column;align-items:center;justify-content:center;
  padding:30px 26px;text-align:center;min-height:100%;
}
.ob-visual{
  width:100%;max-width:280px;height:200px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:32px;
}
.ob-headline{
  font-size:28px;font-weight:700;color:var(--nt);
  letter-spacing:-.03em;line-height:1.15;margin-bottom:14px;
}
.ob-body{
  font-size:13px;color:var(--nt2);line-height:1.7;
  font-weight:300;max-width:320px;
}
.ob-cta-area{padding:18px 22px 28px;display:flex;flex-direction:column;
  gap:10px;}
.ob-btn-pr{
  width:100%;height:50px;background:var(--red);border:none;
  border-radius:var(--rl);font-size:14px;font-weight:600;font-family:var(--f);
  color:white;cursor:pointer;display:flex;align-items:center;
  justify-content:center;gap:8px;
  box-shadow:0 4px 16px rgba(192,57,43,.32);transition:all .18s;
}
.ob-btn-pr:hover{background:var(--red-d);transform:translateY(-1px);}
.ob-btn-sc{
  background:transparent;border:none;font-size:12px;color:var(--nt2);
  font-family:var(--f);cursor:pointer;padding:8px;
}
.ob-btn-sc span{color:var(--red);font-weight:600;}
.ob-dots{display:flex;gap:6px;justify-content:center;padding:14px 0;}
.ob-dot{
  width:6px;height:6px;border-radius:50%;background:var(--nt3);
  transition:all .2s;
}
.ob-dot.active{background:var(--red);width:18px;border-radius:3px;}

/* ============================================
   AUTH SCREENS (register / login)
   ============================================ */
.auth-screen{background:var(--navy);min-height:100%;padding:30px 22px 28px;}
.auth-head{margin-bottom:24px;}
.auth-logo{
  width:48px;height:48px;background:var(--red);border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;box-shadow:0 4px 18px rgba(192,57,43,.4);
}
.auth-logo svg{width:24px;height:24px;fill:white;}
.auth-ttl{font-size:22px;font-weight:700;color:var(--nt);
  letter-spacing:-.02em;margin-bottom:6px;}
.auth-sub{font-size:12px;color:var(--nt2);line-height:1.5;font-weight:300;}

.auth-box{
  background:var(--navy2);border:1px solid var(--nb);
  border-radius:14px;padding:18px;
}
.auth-field{margin-bottom:11px;}
.auth-label{
  font-size:10px;font-family:var(--m);color:var(--nt2);
  text-transform:uppercase;letter-spacing:.07em;margin-bottom:5px;display:block;
}
.auth-input{
  width:100%;height:44px;border-radius:9px;border:1.5px solid var(--nb);
  background:rgba(255,255,255,.06);font-size:13px;font-family:var(--f);
  color:var(--nt);padding:0 12px;outline:none;transition:all .15s;
  -webkit-appearance:none;
}
.auth-input:focus{
  border-color:var(--red);background:rgba(192,57,43,.10);
  box-shadow:0 0 0 3px rgba(192,57,43,.12);
}
.auth-input::placeholder{color:rgba(255,255,255,.25);}

.auth-select{
  width:100%;height:44px;border-radius:9px;border:1.5px solid var(--nb);
  background:rgba(255,255,255,.06);font-size:13px;font-family:var(--f);
  color:var(--nt);padding:0 12px;outline:none;cursor:pointer;
  -webkit-appearance:none;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%23ffffff80' stroke-width='2.5' viewBox='0 0 24 24'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;
  padding-right:36px;
}
.auth-select option{background:var(--navy2);color:var(--nt);}

.auth-btn{
  width:100%;height:48px;border-radius:10px;border:none;
  font-size:14px;font-weight:600;font-family:var(--f);color:white;
  background:var(--red);cursor:pointer;transition:all .18s;
  display:flex;align-items:center;justify-content:center;gap:8px;
  box-shadow:0 3px 12px rgba(192,57,43,.3);margin-top:6px;
}
.auth-btn:hover{background:var(--red-d);transform:translateY(-1px);}
.auth-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;}

.auth-spinner{
  width:16px;height:16px;border:2px solid rgba(255,255,255,.3);
  border-top-color:white;border-radius:50%;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

.auth-msg{
  font-size:11px;text-align:center;margin-top:10px;min-height:16px;
  font-family:var(--m);line-height:1.4;
}
.auth-msg.err{color:#FCA5A5;}
.auth-msg.ok{color:#6EE7B7;}
.auth-msg.info{color:var(--nt3);}

.auth-divider{display:flex;align-items:center;gap:10px;margin:18px 0;}
.auth-divider-line{flex:1;height:1px;background:var(--nb);}
.auth-divider-txt{font-size:10px;color:var(--nt3);font-family:var(--m);}

.auth-switch{
  text-align:center;font-size:12px;color:var(--nt2);margin-top:14px;
}
.auth-switch a{color:var(--red);font-weight:600;cursor:pointer;
  text-decoration:none;}

.auth-hint{
  margin-top:14px;background:rgba(255,255,255,.04);
  border:1px solid var(--nb);border-radius:9px;padding:10px 12px;
}
.auth-hint-t{font-size:10px;font-family:var(--m);color:var(--nt3);
  margin-bottom:4px;text-transform:uppercase;letter-spacing:.07em;}
.auth-hint-b{font-size:11px;color:var(--nt2);line-height:1.5;}

/* Role selector */
.role-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px;}
.role-opt{
  border:1.5px solid var(--nb);background:rgba(255,255,255,.04);
  border-radius:9px;padding:10px 8px;cursor:pointer;transition:all .15s;
  display:flex;flex-direction:column;align-items:center;gap:5px;text-align:center;
}
.role-opt:hover{border-color:rgba(192,57,43,.4);background:rgba(192,57,43,.06);}
.role-opt.selected{border-color:var(--red);background:rgba(192,57,43,.12);}
.role-opt-ico{width:24px;height:24px;display:flex;align-items:center;justify-content:center;}
.role-opt-ico svg{width:18px;height:18px;stroke:var(--nt2);fill:none;stroke-width:1.8;}
.role-opt.selected .role-opt-ico svg{stroke:#FCA5A5;}
.role-opt-lbl{font-size:11px;font-weight:500;color:var(--nt2);}
.role-opt.selected .role-opt-lbl{color:var(--nt);font-weight:600;}

/* ============================================
   HOME DASHBOARD
   ============================================ */
.home-hero{
  background:linear-gradient(160deg,var(--navy2) 0%,var(--navy) 60%);
  padding:18px 16px 20px;border-bottom:1px solid var(--nb);
  position:relative;overflow:hidden;
}
.home-hero::before{
  content:'';position:absolute;top:-60px;right:-60px;width:200px;height:200px;
  background:radial-gradient(circle,rgba(192,57,43,.12) 0%,transparent 65%);
  border-radius:50%;pointer-events:none;
}
.hh-top{display:flex;align-items:center;justify-content:space-between;
  margin-bottom:4px;position:relative;}
.hh-greet{font-size:11px;color:var(--nt3);font-family:var(--m);
  text-transform:uppercase;letter-spacing:.08em;}
.hh-name{font-size:22px;font-weight:700;color:var(--nt);
  letter-spacing:-.02em;margin-top:2px;line-height:1.2;position:relative;}
.hh-badges{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap;position:relative;}
.hh-badge{
  font-size:10px;font-family:var(--m);font-weight:500;
  padding:3px 9px;border-radius:20px;
}
.hh-badge.role{
  color:var(--nt2);background:rgba(255,255,255,.07);
  border:1px solid var(--nb);
}
.hh-badge.tier-trial{
  color:#FCD34D;background:rgba(180,83,9,.18);
  border:1px solid rgba(180,83,9,.3);
}
.hh-badge.tier-premium{
  color:#6EE7B7;background:rgba(15,110,86,.18);
  border:1px solid rgba(15,110,86,.3);
}
.hh-badge.tier-expired{
  color:#FCA5A5;background:rgba(192,57,43,.18);
  border:1px solid rgba(192,57,43,.3);
}
.hh-badge.trial-days{
  color:#FCD34D;background:rgba(180,83,9,.12);
  border:1px solid rgba(180,83,9,.22);
}

/* Announcements strip */
.announce{
  background:linear-gradient(135deg,var(--blue) 0%,#1450A0 100%);
  padding:11px 14px;display:flex;align-items:center;gap:10px;cursor:pointer;
  transition:filter .15s;
}
.announce:hover{filter:brightness(1.1);}
.announce-ico{
  width:28px;height:28px;border-radius:7px;background:rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.announce-ico svg{width:14px;height:14px;stroke:white;fill:none;stroke-width:2;}
.announce-body{flex:1;min-width:0;}
.announce-ttl{font-size:11px;font-weight:600;color:white;line-height:1.3;}
.announce-sub{font-size:10px;color:rgba(255,255,255,.75);margin-top:1px;
  font-family:var(--m);}
.announce-close{
  width:22px;height:22px;border-radius:6px;background:rgba(255,255,255,.12);
  border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.announce-close svg{width:10px;height:10px;stroke:white;fill:none;stroke-width:2.5;}

/* Progress summary */
.prog-strip{
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;
  background:var(--bd);border-bottom:1px solid var(--bd);
}
.prog-cell{background:var(--w);padding:13px 8px;text-align:center;}
.pc-val{font-size:18px;font-weight:700;color:var(--tx);
  letter-spacing:-.02em;line-height:1;}
.pc-lbl{font-size:9px;font-family:var(--m);color:var(--tx3);
  text-transform:uppercase;letter-spacing:.06em;margin-top:4px;}

/* Section header */
.sec-h{padding:18px 14px 10px;display:flex;align-items:center;
  justify-content:space-between;}
.sec-h-l{font-size:10px;font-family:var(--m);color:var(--tx3);
  text-transform:uppercase;letter-spacing:.09em;}
.sec-h-r{font-size:10px;font-family:var(--m);color:var(--red);
  cursor:pointer;}

/* Module cards grid */
.mod-grid{
  padding:0 12px 4px;display:grid;
  grid-template-columns:1fr 1fr;gap:8px;
}
.mod-card{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:14px 12px 12px;cursor:pointer;transition:all .18s;
  display:flex;flex-direction:column;gap:10px;position:relative;
  overflow:hidden;box-shadow:var(--sh1);min-height:130px;
}
.mod-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  border-radius:var(--rl) var(--rl) 0 0;background:var(--red);
  opacity:0;transition:opacity .2s;
}
.mod-card:hover:not(.locked){box-shadow:var(--sh2);transform:translateY(-1px);}
.mod-card:hover:not(.locked)::before{opacity:1;}
.mod-card:active:not(.locked){transform:scale(.98);}
.mod-card.locked{cursor:default;opacity:.7;}
.mc-ico{
  width:36px;height:36px;border-radius:9px;background:var(--red-s);
  display:flex;align-items:center;justify-content:center;
}
.mc-ico svg{width:18px;height:18px;stroke:var(--red);fill:none;stroke-width:1.9;}
.mod-card.locked .mc-ico{background:var(--g100);}
.mod-card.locked .mc-ico svg{stroke:var(--g400);}
.mc-body{flex:1;}
.mc-name{font-size:13px;font-weight:600;color:var(--tx);line-height:1.25;}
.mc-sub{font-size:10px;color:var(--tx3);margin-top:3px;line-height:1.35;}
.mc-foot{display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;}
.mc-prog{flex:1;height:3px;background:var(--g200);border-radius:3px;
  overflow:hidden;margin-right:8px;}
.mc-prog-f{height:100%;background:var(--red);border-radius:3px;
  transition:width .4s cubic-bezier(.4,0,.2,1);}
.mc-prog-l{font-size:9px;font-family:var(--m);color:var(--tx3);}
.mc-soon{
  font-size:9px;font-family:var(--m);font-weight:600;color:var(--tx3);
  background:var(--g100);border:1px solid var(--bd);
  padding:3px 8px;border-radius:20px;display:inline-block;
}

/* Continue learning strip */
.cont-strip{padding:0 12px 16px;}
.cont-card{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:12px;display:flex;align-items:center;gap:11px;cursor:pointer;
  transition:all .18s;box-shadow:var(--sh1);
}
.cont-card:hover{box-shadow:var(--sh2);border-color:var(--bd2);}
.cont-ico{
  width:42px;height:42px;border-radius:9px;background:var(--red-s);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.cont-ico svg{width:18px;height:18px;stroke:var(--red);fill:none;stroke-width:1.8;}
.cont-body{flex:1;min-width:0;}
.cont-lbl{font-size:9px;font-family:var(--m);color:var(--tx3);
  text-transform:uppercase;letter-spacing:.07em;}
.cont-name{font-size:12px;font-weight:600;color:var(--tx);
  margin-top:2px;line-height:1.3;}
.cont-arr svg{width:14px;height:14px;stroke:var(--g400);fill:none;stroke-width:2.3;}

/* Empty state for continue */
.cont-empty{
  background:var(--w);border:1px dashed var(--bd2);border-radius:var(--rl);
  padding:18px 14px;text-align:center;
}
.cont-empty-t{font-size:11px;color:var(--tx2);font-weight:500;}
.cont-empty-s{font-size:10px;color:var(--tx3);margin-top:3px;}

/* Trial banner on home */
.trial-banner{
  background:linear-gradient(135deg,rgba(180,83,9,.95),rgba(146,64,14,.95));
  margin:0 12px 12px;border-radius:var(--rl);padding:12px 14px;
  display:flex;align-items:center;gap:10px;cursor:pointer;
  transition:all .18s;
}
.trial-banner:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(180,83,9,.3);}
.tb-icon{
  width:32px;height:32px;border-radius:8px;background:rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.tb-icon svg{width:16px;height:16px;stroke:white;fill:none;stroke-width:2;}
.tb-body{flex:1;}
.tb-ttl{font-size:12px;font-weight:600;color:white;line-height:1.3;}
.tb-msg{font-size:10px;color:rgba(255,255,255,.85);margin-top:2px;
  font-family:var(--m);}
.tb-arr svg{width:14px;height:14px;stroke:white;fill:none;stroke-width:2.3;}

/* Expired banner on home */
.expired-banner{
  background:linear-gradient(135deg,var(--red) 0%,var(--red-d) 100%);
  margin:0 12px 12px;border-radius:var(--rl);padding:14px;
  display:flex;align-items:center;gap:10px;cursor:pointer;
}
.expired-banner:hover{transform:translateY(-1px);
  box-shadow:0 6px 20px rgba(192,57,43,.35);}

/* ============================================
   ECG HUB SCREEN
   ============================================ */
.hub-head{
  background:var(--navy);padding:18px 14px 16px;border-bottom:1px solid var(--nb);
  position:relative;overflow:hidden;
}
.hub-head::before{
  content:'';position:absolute;top:-40px;right:-40px;width:180px;height:180px;
  background:radial-gradient(circle,rgba(192,57,43,.12) 0%,transparent 65%);
  border-radius:50%;pointer-events:none;
}
.hub-ttl{font-size:22px;font-weight:700;color:var(--nt);
  letter-spacing:-.02em;position:relative;}
.hub-sub{font-size:12px;color:var(--nt2);margin-top:4px;line-height:1.5;
  position:relative;font-weight:300;}

/* Basics track card */
.basics-card{
  margin:12px 12px 16px;background:linear-gradient(135deg,var(--navy2),var(--navy3));
  border:1px solid var(--nb);border-radius:var(--rl);padding:14px;
  cursor:pointer;transition:all .18s;
}
.basics-card:hover{transform:translateY(-1px);
  box-shadow:0 6px 20px rgba(15,27,45,.3);}
.bc-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.bc-ico{
  width:38px;height:38px;border-radius:9px;background:rgba(192,57,43,.2);
  border:1px solid rgba(192,57,43,.3);display:flex;align-items:center;
  justify-content:center;flex-shrink:0;
}
.bc-ico svg{width:18px;height:18px;stroke:#FCA5A5;fill:none;stroke-width:2;}
.bc-info{flex:1;}
.bc-lbl{font-size:9px;font-family:var(--m);color:var(--nt3);
  text-transform:uppercase;letter-spacing:.08em;}
.bc-name{font-size:14px;font-weight:600;color:var(--nt);margin-top:2px;}
.bc-arr svg{width:14px;height:14px;stroke:var(--nt2);fill:none;stroke-width:2.3;}
.bc-prog-row{display:flex;align-items:center;gap:10px;}
.bc-prog{flex:1;height:4px;background:var(--ns);border-radius:3px;overflow:hidden;}
.bc-prog-f{height:100%;background:var(--red);border-radius:3px;
  transition:width .4s cubic-bezier(.4,0,.2,1);}
.bc-prog-l{font-size:10px;font-family:var(--m);color:var(--nt2);}

/* Mode toggle */
.mode-toggle{
  padding:0 12px 10px;display:flex;align-items:center;gap:8px;
}
.mode-toggle-lbl{font-size:10px;font-family:var(--m);color:var(--tx3);
  text-transform:uppercase;letter-spacing:.07em;}
.mode-pills{display:flex;background:var(--g100);border-radius:9px;
  padding:3px;gap:2px;}
.mp{
  font-size:11px;font-family:var(--f);font-weight:500;
  padding:5px 12px;border-radius:7px;cursor:pointer;
  color:var(--tx3);transition:all .15s;border:none;background:transparent;
}
.mp.active{background:var(--w);color:var(--tx);font-weight:600;
  box-shadow:0 1px 3px rgba(0,0,0,.08);}

/* Filter bar */
.filter-bar{
  display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;
  padding:0 12px 12px;
}
.filter-bar::-webkit-scrollbar{display:none;}
.fp{
  flex-shrink:0;font-size:11px;font-weight:500;font-family:var(--m);
  padding:5px 11px;border-radius:20px;cursor:pointer;transition:all .15s;
  border:1px solid var(--bd);background:var(--w);color:var(--tx2);
}
.fp.active{background:var(--navy);color:white;border-color:var(--navy);}
.fp:not(.active):hover{background:var(--g50);}

/* Case grid */
.case-grid{padding:0 12px 16px;display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.case-card{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:12px 11px;cursor:pointer;transition:all .18s;
  display:flex;flex-direction:column;gap:8px;box-shadow:var(--sh1);
  position:relative;overflow:hidden;min-height:135px;
}
.case-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  border-radius:var(--rl) var(--rl) 0 0;opacity:0;transition:opacity .2s;
}
.case-card:hover:not(.locked){box-shadow:var(--sh2);transform:translateY(-1px);}
.case-card:hover:not(.locked)::before{opacity:1;}
.case-card.group-A::before{background:var(--red);}
.case-card.group-B::before{background:var(--amber);}
.case-card.group-C::before{background:var(--blue);}
.cc-top{display:flex;justify-content:space-between;align-items:flex-start;
  gap:4px;}
.cc-num{
  font-size:9px;font-family:var(--m);font-weight:600;color:var(--tx3);
  background:var(--g100);padding:2px 6px;border-radius:4px;
  border:1px solid var(--bd);
}
.cc-status{
  width:8px;height:8px;border-radius:50%;background:var(--g300);
  flex-shrink:0;margin-top:4px;
}
.cc-status.viewed{background:var(--amber);}
.cc-status.completed{background:var(--green);}
.cc-name{font-size:12px;font-weight:600;color:var(--tx);line-height:1.3;}
.cc-name.hidden-name{color:var(--tx3);font-style:italic;}
.cc-foot{display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;gap:4px;flex-wrap:wrap;}
.cc-tag{
  font-size:8px;font-family:var(--m);color:var(--tx3);
  background:var(--g100);border:1px solid var(--bd);
  padding:1px 5px;border-radius:3px;text-transform:uppercase;letter-spacing:.04em;
}
.cc-tag.group-A{color:var(--red);background:var(--red-s);
  border-color:rgba(192,57,43,.18);}
.cc-tag.group-B{color:var(--amber);background:var(--amber-s);
  border-color:rgba(180,83,9,.18);}
.cc-tag.group-C{color:var(--blue);background:var(--blue-s);
  border-color:rgba(24,95,165,.18);}

/* Lock overlay on case card */
.case-card.locked .cc-name,
.case-card.locked .cc-top,
.case-card.locked .cc-foot{filter:blur(3px);opacity:.5;
  pointer-events:none;user-select:none;}
.lock-overlay{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.4);backdrop-filter:blur(1px);cursor:pointer;
}
.lock-icon-circle{
  width:38px;height:38px;border-radius:50%;background:var(--navy);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(0,0,0,.18);
}
.lock-icon-circle svg{width:16px;height:16px;stroke:white;fill:none;stroke-width:2.2;}
.premium-pill{
  position:absolute;top:7px;right:7px;font-size:8px;font-family:var(--m);
  font-weight:600;color:white;background:var(--red);
  padding:2px 7px;border-radius:20px;letter-spacing:.04em;
  box-shadow:0 2px 6px rgba(192,57,43,.4);
}

/* Quiz entry card */
.quiz-entry{
  margin:0 12px 16px;background:linear-gradient(135deg,var(--red) 0%,#A93226 100%);
  border-radius:var(--rl);padding:14px;cursor:pointer;
  display:flex;align-items:center;gap:11px;
  box-shadow:0 4px 18px rgba(192,57,43,.25);transition:all .18s;
}
.quiz-entry:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(192,57,43,.32);}
.qe-ico{
  width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.qe-ico svg{width:20px;height:20px;stroke:white;fill:none;stroke-width:2;}
.qe-body{flex:1;}
.qe-ttl{font-size:14px;font-weight:600;color:white;line-height:1.2;}
.qe-sub{font-size:11px;color:rgba(255,255,255,.85);margin-top:2px;
  font-family:var(--m);}
.qe-arr svg{width:14px;height:14px;stroke:white;fill:none;stroke-width:2.3;}

/* ============================================
   ECG BASICS GUIDE
   ============================================ */
.basics-wrap{padding:12px;display:flex;flex-direction:column;gap:8px;}
.basic-sec{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  overflow:hidden;box-shadow:var(--sh1);
}
.basic-sec.open{box-shadow:var(--sh2);}
.bs-hdr{
  padding:13px 14px;display:flex;align-items:center;justify-content:space-between;
  cursor:pointer;transition:background .12s;min-height:54px;user-select:none;
}
.bs-hdr:hover{background:var(--g50);}
.bs-l{display:flex;align-items:center;gap:11px;}
.bs-num{
  width:26px;height:26px;border-radius:7px;background:var(--red-s);
  color:var(--red);font-size:11px;font-weight:700;font-family:var(--m);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.bs-ttl{font-size:13px;font-weight:600;color:var(--tx);line-height:1.3;}
.bs-chev{width:14px;height:14px;flex-shrink:0;stroke:var(--g400);
  fill:none;stroke-width:2.3;transition:transform .25s cubic-bezier(.4,0,.2,1);}
.basic-sec.open .bs-chev{transform:rotate(180deg);}
.bs-body{max-height:0;overflow:hidden;
  transition:max-height .38s cubic-bezier(.4,0,.2,1);}
.basic-sec.open .bs-body{max-height:4000px;}
.bs-in{padding:0 14px 14px;border-top:1px solid var(--bd);}
.bs-in h4{
  font-size:12px;font-weight:600;color:var(--tx);margin:14px 0 6px;
  letter-spacing:-.01em;
}
.bs-in h4:first-child{margin-top:14px;}
.bs-in p{font-size:12px;color:var(--tx2);line-height:1.65;margin-bottom:8px;}
.bs-in ul{margin:6px 0 8px 0;padding-left:18px;}
.bs-in li{font-size:12px;color:var(--tx2);line-height:1.65;margin-bottom:3px;}
.bs-in strong{color:var(--tx);font-weight:600;}
.bs-callout{
  background:var(--red-s);border:1px solid rgba(192,57,43,.18);
  border-radius:var(--r);padding:10px 12px;margin:10px 0;
}
.bs-callout-t{font-size:10px;font-family:var(--m);font-weight:600;
  color:var(--red);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px;}
.bs-callout-b{font-size:11px;color:#7f1d1d;line-height:1.55;}

/* ============================================
   ECG CASE VIEWER
   ============================================ */
.case-head{
  background:var(--navy);padding:14px;border-bottom:1px solid var(--nb);
}
.ch-meta{display:flex;align-items:center;gap:6px;margin-bottom:8px;flex-wrap:wrap;}
.ch-tag{
  font-size:9px;font-family:var(--m);font-weight:600;
  padding:3px 8px;border-radius:20px;letter-spacing:.04em;
  text-transform:uppercase;
}
.ch-tag.group-A{color:#FCA5A5;background:rgba(192,57,43,.2);
  border:1px solid rgba(192,57,43,.3);}
.ch-tag.group-B{color:#FCD34D;background:rgba(180,83,9,.18);
  border:1px solid rgba(180,83,9,.3);}
.ch-tag.group-C{color:#93C5FD;background:rgba(24,95,165,.18);
  border:1px solid rgba(24,95,165,.3);}
.ch-num{font-size:9px;font-family:var(--m);color:var(--nt3);
  background:var(--ns);padding:3px 7px;border-radius:4px;
  border:1px solid var(--nb);}
.ch-name{font-size:17px;font-weight:700;color:var(--nt);
  letter-spacing:-.02em;line-height:1.2;}

/* Vignette card */
.vignette{
  margin:12px;background:var(--navy);color:var(--nt);
  border:1px solid var(--nb);border-radius:var(--rl);padding:14px;
}
.vig-lbl{font-size:9px;font-family:var(--m);color:var(--nt3);
  text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px;
  display:flex;align-items:center;gap:6px;}
.vig-lbl svg{width:11px;height:11px;stroke:var(--nt3);fill:none;stroke-width:2;}
.vig-body{font-size:13px;color:var(--nt);line-height:1.65;
  font-weight:400;}
.vig-vitals{
  margin-top:10px;padding-top:10px;border-top:1px solid var(--nb);
  font-size:11px;font-family:var(--m);color:#FCD34D;
}
.vig-context{
  margin-top:8px;padding-top:8px;border-top:1px solid var(--nb);
  font-size:11px;color:var(--nt2);font-style:italic;
}

/* ECG image */
.ecg-wrap{padding:0 12px 12px;}
.ecg-img-box{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:8px;overflow:hidden;box-shadow:var(--sh1);
}
.ecg-img{
  width:100%;height:auto;display:block;border-radius:6px;
  background:#FFFCF5;
}
.ecg-source-tag{
  margin-top:6px;font-size:9px;font-family:var(--m);color:var(--tx3);
  text-align:right;letter-spacing:.03em;
}

/* Interpretation panel */
.interp{
  margin:0 12px 12px;background:var(--w);border:1px solid var(--bd);
  border-radius:var(--rl);overflow:hidden;box-shadow:var(--sh1);
}
.interp-head{
  padding:12px 14px;border-bottom:1px solid var(--bd);
  background:var(--g50);display:flex;align-items:center;justify-content:space-between;
}
.interp-ttl{font-size:12px;font-weight:600;color:var(--tx);}
.interp-sub{font-size:10px;font-family:var(--m);color:var(--tx3);}

.interp-prompts{padding:8px;}
.prompt{
  border-bottom:1px solid var(--bd);padding:10px 8px;
  cursor:pointer;transition:background .12s;
}
.prompt:last-child{border-bottom:none;}
.prompt:hover{background:var(--g50);}
.prompt-q{
  display:flex;align-items:center;justify-content:space-between;
  font-size:11px;font-weight:600;color:var(--tx2);
}
.prompt-q-l{display:flex;align-items:center;gap:8px;}
.prompt-icon{
  width:20px;height:20px;border-radius:5px;background:var(--g100);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  transition:all .2s;
}
.prompt-icon svg{width:11px;height:11px;stroke:var(--tx3);
  fill:none;stroke-width:2.3;transition:all .2s;}
.prompt.revealed .prompt-icon{background:var(--green-s);}
.prompt.revealed .prompt-icon svg{stroke:var(--green);}
.prompt-chev{width:11px;height:11px;stroke:var(--g400);fill:none;stroke-width:2.5;
  transition:transform .25s;}
.prompt.revealed .prompt-chev{transform:rotate(180deg);}
.prompt-a{
  max-height:0;overflow:hidden;transition:max-height .35s cubic-bezier(.4,0,.2,1);
}
.prompt.revealed .prompt-a{max-height:200px;}
.prompt-a-in{
  padding:8px 0 4px 28px;font-size:11px;color:var(--tx);
  line-height:1.55;
}

.reveal-all-btn{
  margin:0 12px 14px;height:48px;background:var(--red);border:none;
  border-radius:var(--rl);font-size:13px;font-weight:600;font-family:var(--f);
  color:white;cursor:pointer;display:flex;align-items:center;justify-content:center;
  gap:8px;width:calc(100% - 24px);box-shadow:0 4px 14px rgba(192,57,43,.25);
  transition:all .18s;
}
.reveal-all-btn:hover{background:var(--red-d);transform:translateY(-1px);}
.reveal-all-btn:disabled{opacity:.4;cursor:not-allowed;transform:none;
  background:var(--g300);box-shadow:none;color:var(--tx3);}
.reveal-all-btn svg{width:14px;height:14px;stroke:currentColor;
  fill:none;stroke-width:2.2;}

.reveal-prompt-note{
  margin:0 12px 12px;padding:10px 12px;
  background:var(--amber-s);border:1px solid rgba(180,83,9,.18);
  border-radius:var(--r);font-size:11px;color:#92400e;text-align:center;
  font-family:var(--m);
}

/* Teaching explanation panel */
.explain{
  margin:0 12px 16px;background:var(--w);border:1px solid var(--bd);
  border-radius:var(--rl);overflow:hidden;box-shadow:var(--sh2);
  animation:slideUp .4s cubic-bezier(.4,0,.2,1);
}
@keyframes slideUp{from{opacity:0;transform:translateY(20px);}
  to{opacity:1;transform:translateY(0);}}
.exp-diagnosis{
  background:linear-gradient(135deg,var(--red) 0%,var(--red-d) 100%);
  padding:16px;color:white;
}
.exp-dx-lbl{font-size:10px;font-family:var(--m);color:rgba(255,255,255,.75);
  text-transform:uppercase;letter-spacing:.08em;margin-bottom:5px;}
.exp-dx-name{font-size:18px;font-weight:700;letter-spacing:-.02em;
  line-height:1.2;}
.exp-dx-sub{font-size:11px;color:rgba(255,255,255,.85);margin-top:4px;
  font-family:var(--m);}

.exp-sec{padding:14px;border-bottom:1px solid var(--bd);}
.exp-sec:last-child{border-bottom:none;}
.exp-sec-h{
  font-size:10px;font-family:var(--m);font-weight:700;color:var(--tx3);
  text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px;
  display:flex;align-items:center;gap:6px;
}
.exp-sec-h svg{width:11px;height:11px;stroke:currentColor;fill:none;stroke-width:2.2;}
.exp-sec.why .exp-sec-h{color:var(--blue);}
.exp-sec.remember .exp-sec-h{color:var(--red);}
.exp-sec.next .exp-sec-h{color:var(--green);}
.exp-sec.mimics .exp-sec-h{color:var(--amber);}
.exp-sec.must-not-miss .exp-sec-h{color:var(--red);}

.exp-bullets{display:flex;flex-direction:column;gap:7px;}
.exp-bullet{
  display:flex;gap:8px;align-items:flex-start;
  font-size:12px;color:var(--tx2);line-height:1.55;
}
.exp-bullet::before{
  content:'';width:5px;height:5px;border-radius:50%;background:var(--g400);
  flex-shrink:0;margin-top:7px;
}
.exp-sec.why .exp-bullet::before{background:var(--blue);}
.exp-sec.next .exp-bullet::before{background:var(--green);}
.exp-sec.mimics .exp-bullet::before{background:var(--amber);}
.exp-bullet strong{color:var(--tx);font-weight:600;}

.exp-remember{
  background:var(--red-s);border:1px solid rgba(192,57,43,.18);
  border-radius:var(--r);padding:11px 12px;
}
.exp-remember-txt{font-size:12px;color:#7f1d1d;line-height:1.6;
  font-weight:500;}

.exp-must{
  background:#fef2f2;border:1px solid #fecaca;border-left:3px solid var(--red);
  border-radius:var(--r);padding:11px 12px;
}
.exp-must-txt{font-size:12px;color:#7f1d1d;line-height:1.55;font-weight:500;}

/* Reference toggle */
.ref-toggle{padding:12px 14px;}
.ref-toggle-btn{
  width:100%;background:var(--g50);border:1px solid var(--bd);
  border-radius:var(--r);padding:10px 12px;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;
  font-size:11px;font-weight:500;color:var(--tx2);font-family:var(--f);
  transition:all .15s;
}
.ref-toggle-btn:hover{background:var(--g100);}
.ref-toggle-btn-l{display:flex;align-items:center;gap:7px;}
.ref-toggle-btn-l svg{width:12px;height:12px;stroke:var(--tx3);
  fill:none;stroke-width:2;}
.ref-toggle-btn .chev{width:11px;height:11px;stroke:var(--g400);
  fill:none;stroke-width:2.3;transition:transform .25s;}
.ref-toggle.open .ref-toggle-btn .chev{transform:rotate(180deg);}
.ref-toggle-body{
  max-height:0;overflow:hidden;
  transition:max-height .35s cubic-bezier(.4,0,.2,1);
}
.ref-toggle.open .ref-toggle-body{max-height:300px;}
.ref-toggle-content{
  padding:10px 12px;margin-top:8px;background:var(--g50);
  border:1px solid var(--bd);border-radius:var(--r);
  font-size:11px;color:var(--tx2);line-height:1.6;
}

/* Case nav footer */
.case-nav{
  display:flex;gap:8px;padding:0 12px 16px;
}
.case-nav-btn{
  flex:1;height:42px;background:var(--w);border:1px solid var(--bd);
  border-radius:var(--r);font-size:12px;font-weight:600;font-family:var(--f);
  color:var(--tx2);cursor:pointer;display:flex;align-items:center;
  justify-content:center;gap:6px;transition:all .15s;
}
.case-nav-btn:hover:not(:disabled){background:var(--g50);border-color:var(--bd2);}
.case-nav-btn:disabled{opacity:.4;cursor:not-allowed;}
.case-nav-btn svg{width:13px;height:13px;stroke:currentColor;
  fill:none;stroke-width:2.3;}

/* ============================================
   QUIZ MODE
   ============================================ */
.quiz-hub-head{
  background:var(--navy);padding:18px 14px;border-bottom:1px solid var(--nb);
}
.qh-ttl{font-size:20px;font-weight:700;color:var(--nt);
  letter-spacing:-.02em;}
.qh-sub{font-size:12px;color:var(--nt2);margin-top:4px;font-weight:300;}

.quiz-modes{padding:14px 12px;display:flex;flex-direction:column;gap:10px;}
.quiz-mode-card{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:14px;cursor:pointer;transition:all .18s;
  display:flex;align-items:center;gap:12px;box-shadow:var(--sh1);
  position:relative;overflow:hidden;
}
.quiz-mode-card:hover:not(.locked){box-shadow:var(--sh2);
  transform:translateY(-1px);}
.qm-ico{
  width:48px;height:48px;border-radius:11px;display:flex;
  align-items:center;justify-content:center;flex-shrink:0;
}
.qm-ico svg{width:22px;height:22px;stroke:white;fill:none;stroke-width:1.9;}
.qm-ico.quick{background:linear-gradient(135deg,var(--blue),#1450A0);}
.qm-ico.emergency{background:linear-gradient(135deg,var(--red),var(--red-d));}
.qm-ico.full{background:linear-gradient(135deg,#7C3AED,var(--purple));}
.qm-body{flex:1;}
.qm-name{font-size:14px;font-weight:600;color:var(--tx);line-height:1.2;}
.qm-desc{font-size:11px;color:var(--tx3);margin-top:3px;line-height:1.45;}
.qm-meta{font-size:9px;font-family:var(--m);color:var(--tx3);
  margin-top:5px;text-transform:uppercase;letter-spacing:.05em;}
.qm-arr svg{width:14px;height:14px;stroke:var(--g400);fill:none;stroke-width:2.3;}

.quiz-mode-card.locked .qm-name,
.quiz-mode-card.locked .qm-desc,
.quiz-mode-card.locked .qm-meta{filter:blur(2px);opacity:.5;}

/* Quiz question screen */
.quiz-progress{
  padding:12px 14px;background:var(--w);border-bottom:1px solid var(--bd);
}
.qp-row{display:flex;align-items:center;justify-content:space-between;
  margin-bottom:6px;}
.qp-counter{font-size:11px;font-family:var(--m);font-weight:600;color:var(--tx2);}
.qp-timer{
  font-size:13px;font-family:var(--m);font-weight:700;color:var(--red);
  display:flex;align-items:center;gap:5px;
}
.qp-timer svg{width:13px;height:13px;stroke:var(--red);fill:none;stroke-width:2.2;}
.qp-timer.warning{animation:timerPulse .8s ease-in-out infinite;}
@keyframes timerPulse{0%,100%{transform:scale(1);}50%{transform:scale(1.05);}}
.qp-bar{height:3px;background:var(--g200);border-radius:3px;overflow:hidden;}
.qp-fill{height:100%;background:var(--red);transition:width .3s linear;}

.quiz-q{padding:12px;}
.quiz-q-ecg{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:8px;margin-bottom:14px;box-shadow:var(--sh1);
}
.quiz-q-ecg img{width:100%;height:auto;display:block;border-radius:6px;
  background:#FFFCF5;}
.quiz-q-prompt{
  font-size:13px;font-weight:600;color:var(--tx);text-align:center;
  margin-bottom:12px;
}
.quiz-options{display:flex;flex-direction:column;gap:8px;}
.quiz-opt{
  background:var(--w);border:1.5px solid var(--bd);border-radius:var(--r);
  padding:11px 12px;cursor:pointer;transition:all .15s;
  display:flex;align-items:center;gap:11px;
}
.quiz-opt:hover{background:var(--g50);border-color:var(--bd2);}
.quiz-opt.selected{border-color:var(--navy);background:var(--g100);}
.quiz-opt.correct{border-color:var(--green);background:var(--green-s);}
.quiz-opt.incorrect{border-color:var(--red);background:var(--red-s);}
.qo-letter{
  width:26px;height:26px;border-radius:7px;background:var(--g100);
  color:var(--tx2);font-size:12px;font-weight:700;font-family:var(--m);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.quiz-opt.selected .qo-letter{background:var(--navy);color:white;}
.quiz-opt.correct .qo-letter{background:var(--green);color:white;}
.quiz-opt.incorrect .qo-letter{background:var(--red);color:white;}
.qo-txt{flex:1;font-size:12px;color:var(--tx);line-height:1.35;}
.qo-result{
  width:18px;height:18px;flex-shrink:0;display:none;
}
.quiz-opt.correct .qo-result,
.quiz-opt.incorrect .qo-result{display:flex;align-items:center;justify-content:center;}
.qo-result svg{width:14px;height:14px;fill:none;stroke-width:2.5;}
.quiz-opt.correct .qo-result svg{stroke:var(--green);}
.quiz-opt.incorrect .qo-result svg{stroke:var(--red);}

.quiz-actions{padding:14px 12px;display:flex;gap:8px;}
.quiz-btn{
  flex:1;height:46px;border:none;border-radius:var(--r);
  font-size:13px;font-weight:600;font-family:var(--f);cursor:pointer;
  transition:all .15s;display:flex;align-items:center;justify-content:center;gap:6px;
}
.quiz-btn.skip{background:var(--w);color:var(--tx2);border:1px solid var(--bd);}
.quiz-btn.skip:hover{background:var(--g50);}
.quiz-btn.submit{background:var(--red);color:white;
  box-shadow:0 3px 10px rgba(192,57,43,.25);}
.quiz-btn.submit:hover:not(:disabled){background:var(--red-d);}
.quiz-btn.submit:disabled{opacity:.4;cursor:not-allowed;background:var(--g300);
  color:var(--tx3);box-shadow:none;}
.quiz-btn.next{background:var(--green);color:white;}
.quiz-btn.next:hover{background:#0c5644;}

.quiz-feedback{
  margin:0 12px 12px;padding:12px;border-radius:var(--r);
  font-size:12px;line-height:1.55;
}
.quiz-feedback.correct{background:var(--green-s);
  border:1px solid rgba(15,110,86,.2);color:#065f46;}
.quiz-feedback.incorrect{background:var(--red-s);
  border:1px solid rgba(192,57,43,.2);color:#7f1d1d;}
.qf-ttl{font-size:11px;font-weight:700;text-transform:uppercase;
  letter-spacing:.06em;margin-bottom:4px;font-family:var(--m);}

/* Quiz results */
.quiz-results{padding:14px 12px;}
.qr-card{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:20px 16px;text-align:center;box-shadow:var(--sh2);margin-bottom:14px;
}
.qr-trophy{
  width:60px;height:60px;border-radius:50%;
  background:linear-gradient(135deg,#FCD34D,#F59E0B);
  margin:0 auto 12px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 20px rgba(245,158,11,.3);
}
.qr-trophy svg{width:30px;height:30px;stroke:white;fill:none;stroke-width:2;}
.qr-trophy.silver{background:linear-gradient(135deg,#94A3B8,#64748B);
  box-shadow:0 6px 20px rgba(100,116,139,.3);}
.qr-trophy.bronze{background:linear-gradient(135deg,#FB923C,#EA580C);
  box-shadow:0 6px 20px rgba(234,88,12,.3);}
.qr-score{font-size:42px;font-weight:700;color:var(--tx);
  letter-spacing:-.03em;line-height:1;margin-bottom:6px;font-family:var(--m);}
.qr-score-d{color:var(--tx3);font-weight:600;}
.qr-label{font-size:12px;color:var(--tx3);}
.qr-stats{
  display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:16px;
  padding-top:14px;border-top:1px solid var(--bd);
}
.qr-stat{text-align:center;}
.qr-stat-v{font-size:18px;font-weight:700;color:var(--tx);font-family:var(--m);}
.qr-stat-l{font-size:9px;font-family:var(--m);color:var(--tx3);
  text-transform:uppercase;letter-spacing:.06em;margin-top:3px;}

.qr-actions{display:flex;flex-direction:column;gap:8px;}
.qr-btn{
  height:46px;border-radius:var(--r);border:none;font-size:13px;font-weight:600;
  font-family:var(--f);cursor:pointer;transition:all .18s;
  display:flex;align-items:center;justify-content:center;gap:7px;
}
.qr-btn.primary{background:var(--red);color:white;
  box-shadow:0 3px 12px rgba(192,57,43,.25);}
.qr-btn.primary:hover{background:var(--red-d);}
.qr-btn.secondary{background:var(--w);color:var(--tx2);border:1px solid var(--bd);}
.qr-btn.secondary:hover{background:var(--g50);}
.qr-btn svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2.2;}

/* ============================================
   LEARN / SOUNDS PLACEHOLDER SCREENS
   ============================================ */
.coming-soon{
  padding:40px 24px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;text-align:center;min-height:60vh;
}
.cs-ico{
  width:70px;height:70px;border-radius:18px;background:var(--g100);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  border:1px solid var(--bd);
}
.cs-ico svg{width:32px;height:32px;stroke:var(--g400);fill:none;stroke-width:1.6;}
.cs-ttl{font-size:18px;font-weight:700;color:var(--tx);
  letter-spacing:-.02em;margin-bottom:6px;}
.cs-sub{font-size:12px;color:var(--tx3);line-height:1.6;max-width:280px;
  margin-bottom:18px;}
.cs-badge{
  font-size:10px;font-family:var(--m);font-weight:600;color:var(--amber);
  background:var(--amber-s);border:1px solid rgba(180,83,9,.2);
  padding:5px 12px;border-radius:20px;letter-spacing:.04em;
}
.cs-preview{
  margin-top:24px;padding:14px 16px;background:var(--w);
  border:1px dashed var(--bd2);border-radius:var(--rl);max-width:320px;
}
.cs-preview-t{font-size:10px;font-family:var(--m);color:var(--tx3);
  text-transform:uppercase;letter-spacing:.07em;margin-bottom:8px;}
.cs-preview-b{font-size:11px;color:var(--tx2);line-height:1.6;}

/* ============================================
   PROFILE SCREEN
   ============================================ */
.profile-head{
  background:linear-gradient(160deg,var(--navy2) 0%,var(--navy) 60%);
  padding:24px 18px 22px;text-align:center;
}
.profile-avatar{
  width:64px;height:64px;border-radius:50%;background:var(--red);
  margin:0 auto 12px;display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:700;color:white;
  box-shadow:0 4px 18px rgba(192,57,43,.35);
}
.profile-name{font-size:18px;font-weight:700;color:var(--nt);
  letter-spacing:-.02em;margin-bottom:4px;}
.profile-email{font-size:11px;color:var(--nt2);font-family:var(--m);}
.profile-badges{display:flex;justify-content:center;gap:6px;margin-top:10px;}

.upgrade-banner{
  margin:14px 12px;background:linear-gradient(135deg,var(--red) 0%,var(--red-d) 100%);
  border-radius:var(--rl);padding:14px;cursor:pointer;
  display:flex;align-items:center;gap:11px;
  box-shadow:0 6px 22px rgba(192,57,43,.25);
}
.upgrade-banner:hover{transform:translateY(-1px);
  box-shadow:0 8px 28px rgba(192,57,43,.32);}
.ub-ico{
  width:38px;height:38px;border-radius:9px;background:rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.ub-ico svg{width:18px;height:18px;stroke:white;fill:none;stroke-width:2;}
.ub-body{flex:1;}
.ub-t{font-size:13px;font-weight:700;color:white;line-height:1.2;}
.ub-s{font-size:11px;color:rgba(255,255,255,.85);margin-top:2px;
  font-family:var(--m);}
.ub-arr svg{width:14px;height:14px;stroke:white;fill:none;stroke-width:2.3;}

/* Stats summary */
.profile-stats{
  margin:0 12px 14px;display:grid;grid-template-columns:1fr 1fr 1fr;
  gap:1px;background:var(--bd);border:1px solid var(--bd);
  border-radius:var(--rl);overflow:hidden;
}
.ps-cell{background:var(--w);padding:14px 8px;text-align:center;}
.ps-v{font-size:20px;font-weight:700;color:var(--tx);
  letter-spacing:-.02em;line-height:1;font-family:var(--m);}
.ps-l{font-size:9px;font-family:var(--m);color:var(--tx3);
  text-transform:uppercase;letter-spacing:.06em;margin-top:5px;}

/* Settings sections */
.set-sec{padding:14px 12px 4px;}
.set-lbl{font-size:9px;font-family:var(--m);color:var(--tx3);
  text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px;
  padding:0 4px;}
.set-card{background:var(--w);border:1px solid var(--bd);
  border-radius:var(--rl);overflow:hidden;box-shadow:var(--sh1);}
.set-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-bottom:1px solid var(--bd);cursor:pointer;
  transition:background .12s;
}
.set-row:last-child{border-bottom:none;}
.set-row:hover{background:var(--g50);}
.set-row.no-action{cursor:default;}
.set-row.no-action:hover{background:transparent;}
.sr-l{display:flex;align-items:center;gap:10px;}
.sr-ico{
  width:30px;height:30px;border-radius:7px;background:var(--g100);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.sr-ico svg{width:14px;height:14px;stroke:var(--tx2);fill:none;stroke-width:1.9;}
.sr-lbl{font-size:12px;font-weight:500;color:var(--tx);}
.sr-sub{font-size:10px;color:var(--tx3);margin-top:2px;font-family:var(--m);}
.sr-r{display:flex;align-items:center;gap:6px;}
.sr-v{font-size:11px;font-family:var(--m);color:var(--tx3);
  max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.sr-ch svg{width:12px;height:12px;stroke:var(--g400);fill:none;stroke-width:2.5;}
.sr-badge{
  font-size:9px;font-family:var(--m);font-weight:600;
  padding:3px 8px;border-radius:20px;
}
.sr-badge.trial{color:var(--amber);background:var(--amber-s);
  border:1px solid rgba(180,83,9,.18);}
.sr-badge.premium{color:var(--green);background:var(--green-s);
  border:1px solid rgba(15,110,86,.18);}
.sr-badge.expired{color:var(--red);background:var(--red-s);
  border:1px solid rgba(192,57,43,.18);}

.set-row.danger .sr-lbl{color:var(--red);}
.set-row.danger .sr-ico{background:var(--red-s);}
.set-row.danger .sr-ico svg{stroke:var(--red);}

/* References toggle in About */
.refs-toggle{padding:10px 12px;background:var(--g50);
  border-top:1px solid var(--bd);}
.refs-toggle-btn{
  width:100%;background:transparent;border:none;cursor:pointer;
  padding:6px 0;display:flex;align-items:center;justify-content:space-between;
  font-size:11px;font-weight:500;color:var(--tx2);font-family:var(--f);
}
.refs-toggle-btn .chev{width:11px;height:11px;stroke:var(--g400);
  fill:none;stroke-width:2.3;transition:transform .25s;}
.refs-toggle.open .refs-toggle-btn .chev{transform:rotate(180deg);}
.refs-content{
  max-height:0;overflow:hidden;
  transition:max-height .35s cubic-bezier(.4,0,.2,1);
}
.refs-toggle.open .refs-content{max-height:600px;}
.refs-list{padding:10px 0 6px;display:flex;flex-direction:column;gap:8px;}
.refs-item{display:flex;gap:8px;align-items:flex-start;font-size:11px;
  color:var(--tx2);line-height:1.5;}
.refs-item-ico{
  width:6px;height:6px;border-radius:50%;background:var(--red);
  flex-shrink:0;margin-top:6px;
}

/* Changelog */
.changelog{padding:10px 12px;background:var(--g50);
  border-top:1px solid var(--bd);}
.cl-version{margin-bottom:10px;}
.cl-version:last-child{margin-bottom:0;}
.cl-v-tag{
  display:inline-flex;align-items:center;gap:5px;font-size:10px;
  font-family:var(--m);font-weight:700;color:var(--red);
  background:var(--red-s);border:1px solid rgba(192,57,43,.18);
  padding:2px 7px;border-radius:4px;margin-bottom:6px;
}
.cl-v-date{font-size:9px;font-family:var(--m);color:var(--tx3);
  margin-left:4px;font-weight:400;}
.cl-list{padding-left:14px;margin:0;}
.cl-list li{font-size:11px;color:var(--tx2);line-height:1.55;
  margin-bottom:3px;}

/* ============================================
   MODAL — UPGRADE
   ============================================ */
.modal-backdrop{
  position:fixed;inset:0;background:rgba(15,27,45,.65);
  z-index:1000;opacity:0;pointer-events:none;
  transition:opacity .25s;backdrop-filter:blur(4px);
}
.modal-backdrop.show{opacity:1;pointer-events:auto;}
.modal-sheet{
  position:fixed;bottom:0;left:50%;transform:translateX(-50%) translateY(100%);
  width:100%;max-width:430px;background:var(--w);
  border-radius:18px 18px 0 0;z-index:1001;
  transition:transform .35s cubic-bezier(.4,0,.2,1);
  max-height:88vh;overflow-y:auto;
}
.modal-sheet.show{transform:translateX(-50%) translateY(0);}
.modal-handle{
  width:40px;height:4px;background:var(--g300);border-radius:2px;
  margin:10px auto 6px;
}
.modal-head{padding:14px 18px 12px;text-align:center;border-bottom:1px solid var(--bd);}
.modal-icon-wrap{
  width:54px;height:54px;border-radius:14px;
  background:linear-gradient(135deg,var(--red),var(--red-d));
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 12px;box-shadow:0 6px 22px rgba(192,57,43,.3);
}
.modal-icon-wrap svg{width:26px;height:26px;stroke:white;fill:none;stroke-width:2;}
.modal-ttl{font-size:18px;font-weight:700;color:var(--tx);
  letter-spacing:-.02em;}
.modal-sub{font-size:12px;color:var(--tx3);margin-top:5px;line-height:1.5;}
.modal-body{padding:18px;}
.benefits-list{display:flex;flex-direction:column;gap:10px;margin-bottom:18px;}
.benefit{display:flex;gap:10px;align-items:flex-start;}
.benefit-ico{
  width:22px;height:22px;border-radius:6px;background:var(--green-s);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  margin-top:1px;
}
.benefit-ico svg{width:12px;height:12px;stroke:var(--green);fill:none;stroke-width:2.5;}
.benefit-txt{font-size:12px;color:var(--tx);line-height:1.5;}
.benefit-txt strong{font-weight:600;}

.modal-cta-group{display:flex;flex-direction:column;gap:8px;}
.modal-btn{
  height:48px;border-radius:var(--rl);border:none;font-size:13px;
  font-weight:600;font-family:var(--f);cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:8px;
  transition:all .18s;
}
.modal-btn svg{width:15px;height:15px;fill:currentColor;}
.modal-btn.whatsapp{background:#25D366;color:white;
  box-shadow:0 4px 14px rgba(37,211,102,.3);}
.modal-btn.whatsapp:hover{background:#1FB955;transform:translateY(-1px);}
.modal-btn.email{background:var(--w);color:var(--tx2);
  border:1.5px solid var(--bd2);}
.modal-btn.email:hover{background:var(--g50);border-color:var(--g400);}
.modal-btn.email svg{stroke:var(--tx2);fill:none;stroke-width:2;}
.modal-dismiss{
  text-align:center;font-size:11px;color:var(--tx3);cursor:pointer;
  padding:14px 0 6px;
}
.modal-dismiss:hover{color:var(--tx2);}

/* Confirmation modal */
.confirm-modal{
  position:fixed;top:50%;left:50%;
  transform:translate(-50%,-50%) scale(.95);
  background:var(--w);border-radius:var(--rl);
  z-index:1001;width:calc(100% - 40px);max-width:340px;
  padding:20px;text-align:center;
  opacity:0;pointer-events:none;transition:all .25s;
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.confirm-modal.show{opacity:1;pointer-events:auto;
  transform:translate(-50%,-50%) scale(1);}
.confirm-icon{
  width:48px;height:48px;border-radius:50%;
  background:var(--amber-s);display:flex;align-items:center;justify-content:center;
  margin:0 auto 12px;
}
.confirm-icon svg{width:24px;height:24px;stroke:var(--amber);fill:none;stroke-width:2;}
.confirm-icon.danger{background:var(--red-s);}
.confirm-icon.danger svg{stroke:var(--red);}
.confirm-ttl{font-size:15px;font-weight:700;color:var(--tx);margin-bottom:6px;}
.confirm-msg{font-size:12px;color:var(--tx3);line-height:1.5;margin-bottom:18px;}
.confirm-btns{display:flex;gap:8px;}
.confirm-btn{
  flex:1;height:42px;border-radius:var(--r);border:none;font-size:12px;
  font-weight:600;font-family:var(--f);cursor:pointer;transition:all .15s;
}
.confirm-btn.cancel{background:var(--g100);color:var(--tx2);}
.confirm-btn.cancel:hover{background:var(--g200);}
.confirm-btn.confirm{background:var(--red);color:white;
  box-shadow:0 3px 10px rgba(192,57,43,.2);}
.confirm-btn.confirm:hover{background:var(--red-d);}

/* Toast */
.toast{
  position:fixed;bottom:80px;left:50%;transform:translateX(-50%) translateY(20px);
  background:var(--navy);color:white;padding:11px 18px;border-radius:24px;
  font-size:12px;font-weight:500;z-index:2000;opacity:0;pointer-events:none;
  transition:all .3s cubic-bezier(.4,0,.2,1);
  box-shadow:0 6px 24px rgba(0,0,0,.25);
  display:flex;align-items:center;gap:8px;
  max-width:calc(100% - 40px);
}
.toast svg{width:14px;height:14px;stroke:white;fill:none;stroke-width:2.3;flex-shrink:0;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ============================================
   UTILITIES
   ============================================ */
.no-select{user-select:none;-webkit-user-select:none;}
.scrollable{overflow-y:auto;-webkit-overflow-scrolling:touch;}
.scrollable::-webkit-scrollbar{display:none;}

/* ============================================
   LEARN MODULE
   ============================================ */

/* Learn track card */
.learn-track-card{
  margin:12px 12px 16px;background:linear-gradient(135deg,var(--navy2),var(--navy3));
  border:1px solid var(--nb);border-radius:var(--rl);padding:14px;
  position:relative;overflow:hidden;
}
.learn-track-card::before{
  content:'';position:absolute;top:-40px;right:-40px;width:140px;height:140px;
  background:radial-gradient(circle,rgba(192,57,43,.15) 0%,transparent 65%);
  border-radius:50%;pointer-events:none;
}
.ltc-top{display:flex;align-items:center;justify-content:space-between;
  margin-bottom:8px;position:relative;}
.ltc-badge{
  font-size:9px;font-family:var(--m);font-weight:600;color:#FCA5A5;
  background:rgba(192,57,43,.18);border:1px solid rgba(192,57,43,.3);
  padding:3px 9px;border-radius:20px;letter-spacing:.04em;
}
.ltc-progress{font-size:10px;font-family:var(--m);color:var(--nt2);}
.ltc-name{font-size:17px;font-weight:700;color:var(--nt);
  letter-spacing:-.02em;line-height:1.2;margin-bottom:6px;position:relative;}
.ltc-desc{font-size:11px;color:var(--nt2);line-height:1.55;font-weight:300;
  margin-bottom:10px;position:relative;}
.ltc-progress-bar{height:4px;background:rgba(255,255,255,.08);
  border-radius:3px;overflow:hidden;position:relative;}
.ltc-progress-fill{height:100%;background:var(--red);border-radius:3px;
  transition:width .4s cubic-bezier(.4,0,.2,1);}

/* Learn module cards */
.learn-modules{padding:0 12px 16px;display:flex;flex-direction:column;gap:8px;}
.learn-module-card{
  position:relative;background:var(--w);border:1px solid var(--bd);
  border-radius:var(--rl);padding:13px 14px;cursor:pointer;
  display:flex;align-items:center;gap:12px;box-shadow:var(--sh1);
  transition:all .18s;
}
.learn-module-card:hover:not(.locked){box-shadow:var(--sh2);
  transform:translateY(-1px);border-color:var(--bd2);}
.learn-module-card.locked{opacity:.65;cursor:pointer;}
.lmc-left{
  display:flex;flex-direction:column;align-items:center;gap:5px;
  min-width:42px;
}
.lmc-num{
  font-size:9px;font-family:var(--m);font-weight:700;color:var(--tx3);
  background:var(--g100);padding:2px 7px;border-radius:4px;
  border:1px solid var(--bd);
}
.lmc-ico{
  width:32px;height:32px;border-radius:8px;background:var(--red-s);
  display:flex;align-items:center;justify-content:center;color:var(--red);
}
.learn-module-card.locked .lmc-ico{background:var(--g100);color:var(--g400);}
.lmc-body{flex:1;min-width:0;}
.lmc-name{font-size:13px;font-weight:600;color:var(--tx);line-height:1.25;}
.lmc-sub{font-size:10px;color:var(--tx3);margin-top:2px;}
.lmc-foot{display:flex;align-items:center;gap:8px;margin-top:8px;}
.lmc-progress-bar{flex:1;height:3px;background:var(--g200);
  border-radius:3px;overflow:hidden;}
.lmc-progress-fill{height:100%;background:var(--red);
  border-radius:3px;transition:width .4s cubic-bezier(.4,0,.2,1);}
.lmc-progress-label{font-size:9px;font-family:var(--m);color:var(--tx3);
  white-space:nowrap;}

/* Learn lesson list */
.learn-lessons{padding:12px;display:flex;flex-direction:column;gap:8px;}
.learn-lesson-card{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:12px;cursor:pointer;display:flex;align-items:center;gap:12px;
  box-shadow:var(--sh1);transition:all .15s;
}
.learn-lesson-card:hover{box-shadow:var(--sh2);border-color:var(--bd2);}
.llc-left{
  display:flex;flex-direction:column;align-items:center;gap:6px;
  min-width:36px;
}
.llc-num{
  font-size:11px;font-family:var(--m);font-weight:700;color:var(--red);
  background:var(--red-s);padding:3px 7px;border-radius:5px;
  border:1px solid rgba(192,57,43,.18);
}
.ll-dot{width:7px;height:7px;border-radius:50%;background:var(--g300);}
.ll-dot.progress{background:var(--amber);}
.ll-dot.done{background:var(--green);}
.llc-body{flex:1;min-width:0;}
.llc-name{font-size:13px;font-weight:600;color:var(--tx);line-height:1.25;}
.llc-meta{display:flex;gap:8px;margin-top:4px;align-items:center;}
.llc-meta span{font-size:9px;font-family:var(--m);color:var(--tx3);}
.llc-link-tag{
  font-size:9px;font-family:var(--m);color:var(--blue);
  background:var(--blue-s);padding:1px 6px;border-radius:3px;
  border:1px solid rgba(24,95,165,.15);
}
.llc-progress{height:2px;background:var(--g200);border-radius:2px;
  overflow:hidden;margin-top:6px;}
.llc-progress-fill{height:100%;background:var(--amber);
  border-radius:2px;transition:width .3s;}
.llc-arr svg{width:13px;height:13px;stroke:var(--g400);
  fill:none;stroke-width:2.3;}

/* Lesson view */
.lesson-head{
  background:var(--navy);padding:14px;border-bottom:1px solid var(--nb);
  position:sticky;top:0;z-index:5;
}
.lh-meta{display:flex;align-items:center;justify-content:space-between;
  margin-bottom:6px;}
.lh-num{font-size:10px;font-family:var(--m);font-weight:600;color:#FCA5A5;
  background:rgba(192,57,43,.15);padding:3px 8px;border-radius:4px;
  border:1px solid rgba(192,57,43,.25);}
.lh-progress{font-size:10px;font-family:var(--m);color:var(--nt2);}
.lh-title{font-size:14px;font-weight:600;color:var(--nt);
  line-height:1.3;margin-bottom:10px;}
.lh-progress-bar{height:2px;background:rgba(255,255,255,.1);
  border-radius:2px;overflow:hidden;margin-bottom:8px;}
.lh-progress-fill{height:100%;background:var(--red);
  border-radius:2px;transition:width .35s cubic-bezier(.4,0,.2,1);}
.lh-dots{display:flex;gap:4px;justify-content:center;}
.lh-dot{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.18);
  transition:all .2s;}
.lh-dot.seen{background:rgba(192,57,43,.5);}
.lh-dot.active{background:var(--red);width:18px;border-radius:3px;}

/* Card container */
.card-container{padding:14px 12px;animation:cardSlide .3s ease both;}
@keyframes cardSlide{
  from{opacity:0;transform:translateX(15px);}
  to{opacity:1;transform:translateX(0);}
}

/* Generic learn card */
.learn-card{
  background:var(--w);border:1px solid var(--bd);border-radius:var(--rl);
  padding:16px;box-shadow:var(--sh1);position:relative;
}
.lc-type-tag{
  display:inline-flex;align-items:center;gap:5px;font-size:9px;
  font-family:var(--m);font-weight:700;text-transform:uppercase;
  letter-spacing:.08em;margin-bottom:12px;padding:3px 8px;
  border-radius:4px;
}
.lc-type-tag svg{width:11px;height:11px;}

.concept-card .lc-type-tag{background:var(--blue-s);color:var(--blue);
  border:1px solid rgba(24,95,165,.18);}
.diagram-card .lc-type-tag{background:var(--purple-s);color:var(--purple);
  border:1px solid rgba(103,65,217,.18);}
.clinical-card .lc-type-tag{background:var(--green-s);color:var(--green);
  border:1px solid rgba(15,110,86,.18);}
.check-card .lc-type-tag{background:var(--amber-s);color:var(--amber);
  border:1px solid rgba(180,83,9,.18);}

.lc-title{font-size:14px;font-weight:600;color:var(--tx);
  line-height:1.3;margin-bottom:10px;letter-spacing:-.01em;}
.lc-body{font-size:13px;line-height:1.65;color:var(--tx2);}
.lc-body strong{color:var(--tx);font-weight:600;}

/* Diagram card */
.lc-diagram{
  background:#fafbfc;border:1px solid var(--bd);border-radius:var(--r);
  padding:12px;margin:6px 0;
}
.lc-caption{font-size:10px;font-family:var(--m);color:var(--tx3);
  text-align:center;margin-top:8px;font-style:italic;}

/* Clinical card */
.lc-callout{
  background:var(--green-s);border:1px solid rgba(15,110,86,.18);
  border-left:3px solid var(--green);
  border-radius:var(--r);padding:10px 12px;margin-top:12px;
  display:flex;gap:8px;align-items:flex-start;font-size:12px;
  color:#065f46;line-height:1.55;
}
.lc-callout svg{width:13px;height:13px;stroke:var(--green);
  fill:none;stroke-width:2.2;flex-shrink:0;margin-top:1px;}

/* Check card */
.lc-question{font-size:13px;font-weight:600;color:var(--tx);
  line-height:1.4;margin-bottom:12px;}
.lc-options{display:flex;flex-direction:column;gap:7px;}
.lc-opt{
  background:var(--w);border:1.5px solid var(--bd);border-radius:var(--r);
  padding:10px 11px;display:flex;align-items:center;gap:10px;
  cursor:pointer;transition:all .15s;
}
.lc-opt:hover:not(.correct):not(.incorrect){background:var(--g50);
  border-color:var(--bd2);}
.lc-opt.correct{border-color:var(--green);background:var(--green-s);
  cursor:default;}
.lc-opt.incorrect{border-color:var(--red);background:var(--red-s);
  cursor:default;}
.lc-opt-letter{
  width:24px;height:24px;border-radius:6px;background:var(--g100);
  color:var(--tx2);font-size:11px;font-weight:700;font-family:var(--m);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.lc-opt.correct .lc-opt-letter{background:var(--green);color:white;}
.lc-opt.incorrect .lc-opt-letter{background:var(--red);color:white;}
.lc-opt-text{flex:1;font-size:12px;color:var(--tx);line-height:1.4;}
.lc-opt-icon{
  width:18px;height:18px;display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.lc-opt-icon.ok svg{stroke:var(--green);fill:none;stroke-width:2.5;width:14px;height:14px;}
.lc-opt-icon.no svg{stroke:var(--red);fill:none;stroke-width:2.5;width:14px;height:14px;}

.lc-explanation{
  margin-top:12px;padding:11px 12px;border-radius:var(--r);
  font-size:12px;line-height:1.55;
  animation:fadeIn .3s ease both;
}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
.lc-explanation.correct{background:var(--green-s);
  border:1px solid rgba(15,110,86,.18);color:#065f46;}
.lc-explanation.incorrect{background:var(--red-s);
  border:1px solid rgba(192,57,43,.18);color:#7f1d1d;}
.lc-explanation-label{font-size:10px;font-weight:700;font-family:var(--m);
  text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px;}

/* References at lesson end */
.lesson-refs{
  margin:0 12px 12px;background:var(--w);border:1px solid var(--bd);
  border-radius:var(--rl);overflow:hidden;
}
.lesson-refs-btn{
  width:100%;background:var(--g50);border:none;cursor:pointer;
  padding:12px 14px;display:flex;align-items:center;justify-content:space-between;
  font-size:12px;font-weight:500;color:var(--tx2);font-family:var(--f);
}
.lesson-refs-btn:hover{background:var(--g100);}
.lesson-refs-l{display:flex;align-items:center;gap:7px;}
.lesson-refs-l svg{width:13px;height:13px;stroke:var(--tx2);
  fill:none;stroke-width:2;}
.lesson-refs-btn .chev{width:12px;height:12px;stroke:var(--g400);
  fill:none;stroke-width:2.3;transition:transform .25s;}
.lesson-refs.open .lesson-refs-btn .chev{transform:rotate(180deg);}
.lesson-refs-body{
  max-height:0;overflow:hidden;
  transition:max-height .4s cubic-bezier(.4,0,.2,1);
}
.lesson-refs.open .lesson-refs-body{max-height:600px;}
.lesson-refs-list{padding:10px 14px 14px;display:flex;
  flex-direction:column;gap:8px;}
.lesson-ref-item{display:flex;gap:8px;align-items:flex-start;}
.lesson-ref-num{
  width:18px;height:18px;border-radius:50%;background:var(--red-s);
  color:var(--red);font-size:9px;font-weight:700;font-family:var(--m);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
  margin-top:1px;
}
.lesson-ref-text{font-size:11px;color:var(--tx2);line-height:1.55;}

/* ECG crosslinks at lesson end */
.lesson-ecg-links{
  margin:0 12px 12px;background:var(--w);border:1px solid var(--bd);
  border-radius:var(--rl);padding:12px 14px;
}
.lel-head{
  font-size:11px;font-weight:600;color:var(--blue);
  display:flex;align-items:center;gap:6px;margin-bottom:10px;
  text-transform:uppercase;letter-spacing:.06em;font-family:var(--m);
}
.lel-head svg{width:12px;height:12px;stroke:var(--blue);fill:none;stroke-width:2;}
.lel-list{display:flex;flex-direction:column;gap:6px;}
.lel-item{
  background:var(--blue-s);border:1px solid rgba(24,95,165,.15);
  border-radius:var(--r);padding:9px 11px;cursor:pointer;
  display:flex;align-items:center;gap:9px;transition:all .15s;
}
.lel-item:hover{background:#dbeafe;border-color:rgba(24,95,165,.3);}
.lel-item-num{font-size:10px;font-family:var(--m);font-weight:700;
  color:var(--blue);background:white;padding:2px 6px;border-radius:4px;
  border:1px solid rgba(24,95,165,.2);flex-shrink:0;}
.lel-item-name{flex:1;font-size:11px;font-weight:500;color:var(--text);}
.lel-item-arr{width:11px;height:11px;stroke:var(--blue);
  fill:none;stroke-width:2.3;flex-shrink:0;}

/* Card navigation footer */
.card-nav{
  display:flex;gap:8px;padding:8px 12px 16px;
  position:sticky;bottom:0;background:linear-gradient(to top, var(--g50) 60%, rgba(248,249,250,0.7) 100%);
}
.card-nav-btn{
  flex:1;height:46px;background:var(--w);border:1px solid var(--bd);
  border-radius:var(--r);font-size:12px;font-weight:600;font-family:var(--f);
  color:var(--tx2);cursor:pointer;display:flex;align-items:center;
  justify-content:center;gap:6px;transition:all .15s;
}
.card-nav-btn:hover:not(:disabled){background:var(--g50);border-color:var(--bd2);}
.card-nav-btn:disabled{opacity:.35;cursor:not-allowed;}
.card-nav-btn svg{width:13px;height:13px;stroke:currentColor;
  fill:none;stroke-width:2.3;}
.card-nav-btn[data-complete="true"]{
  background:var(--green);color:white;border-color:var(--green);
  box-shadow:0 3px 10px rgba(15,110,86,.25);
}
.card-nav-btn[data-complete="true"]:hover{background:#0c5644;}

/* Hint for swipe gesture (subtle) */
.swipe-hint{
  text-align:center;font-size:9px;font-family:var(--m);color:var(--tx3);
  padding:8px 0;font-style:italic;letter-spacing:.04em;
}