:root{--bg:#fff9ec;--surface:#fff9ec;--card:#fff;--low:#faf3e1;--high:#e9e2d1;--text:#1e1c11;--muted:#4f4633;--outline:#111;--primary:#795900;--primary-card:#ffc21a;--secondary:#69548c;--secondary-card:#d7befe;--tertiary:#006e29;--tertiary-card:#6ae47e;--error:#ba1a1a;--error-card:#ffdad6;--shadow:4px 4px 0 #111;--soft:0 4px 12px rgba(59,39,92,.08);--max:1100px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:'Nunito Sans',system-ui,sans-serif}.material-symbols-outlined{font-family:'Material Symbols Outlined';font-weight:normal;font-style:normal;line-height:1;text-transform:none;letter-spacing:normal;white-space:nowrap;direction:ltr;font-variation-settings:'FILL' 0,'wght' 400,'GRAD' 0,'opsz' 24}.taps-app{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:20;width:100%;max-width:var(--max);margin:auto;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:12px 24px;background:var(--surface);border-bottom:2px solid var(--outline)}.brand{display:flex;align-items:center;gap:10px}.brand img{width:48px;height:48px;object-fit:contain}.brand strong{display:block;font-size:24px;font-weight:800;color:var(--primary);line-height:1.1}.brand span{display:block;color:var(--muted);font-family:Inter,sans-serif;font-size:14px}.top-meta{display:flex;align-items:center;gap:12px;font-family:Inter,sans-serif;font-weight:700}.timer-pill{background:var(--primary-card);color:#6e5100;padding:8px 16px;border:2px solid var(--outline);border-radius:999px;box-shadow:var(--shadow)}.screen-wrap{width:100%;max-width:var(--max);margin:0 auto;padding:48px 24px 112px;flex:1}.screen{display:none}.screen.active{display:block}.entry-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}.hero-card,.form-card,.center-card,.wide-card,.question-card,.warning-card,.receipt-card{background:var(--card);border:2px solid var(--outline);border-radius:18px;padding:32px;box-shadow:8px 8px 0 rgba(59,39,92,.08)}.hero-card{background:var(--secondary-card);display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.hero-card img,.logo-large{width:130px;height:130px;object-fit:contain;margin-bottom:18px}.hero-card h1,.center-card h1,.wide-card h1,.review-main h1{font-size:40px;line-height:48px;margin:0 0 12px;color:var(--secondary);font-weight:800;letter-spacing:-.02em}.hero-card p,.center-card p,.wide-card li,.warning-card p{font-size:20px;line-height:30px;color:var(--muted)}.form-card{display:flex;flex-direction:column;gap:16px}label{font-family:Inter,sans-serif;font-weight:700;color:var(--primary)}input,select,textarea{width:100%;margin-top:6px;padding:14px 16px;border:2px solid var(--outline);border-radius:14px;background:#fff;font:inherit;color:var(--text)}input:focus,select:focus,textarea:focus{outline:none;border-width:3px;background:#fffceb}.stamp-btn,.outline-btn{border:2px solid var(--outline);border-radius:999px;padding:16px 28px;font-family:Inter,sans-serif;font-weight:800;font-size:16px;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:.12s ease;text-decoration:none}.stamp-btn{background:var(--primary-card);color:#6e5100;box-shadow:var(--shadow)}.stamp-btn:active,.stamp-btn.pressed{transform:translate(2px,2px);box-shadow:1px 1px 0 #111}.stamp-btn:disabled{opacity:.5;cursor:not-allowed}.stamp-btn.danger{background:var(--error-card);color:#93000a}.outline-btn{background:transparent;color:var(--secondary);border-color:var(--secondary)}.center-card{max-width:700px;margin:0 auto;text-align:center;display:flex;flex-direction:column;align-items:center}.wide-card{max-width:800px;margin:auto}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0;width:100%}.info-grid span,.instruction-list li,.check-row,.hint,.autosave{background:var(--low);border:1px solid #d3c5ac;border-radius:12px;padding:12px;color:var(--muted)}.instruction-list{display:grid;gap:12px;margin:24px 0;padding-left:0;list-style:none}.check-row{display:flex;align-items:center;gap:10px;margin-bottom:20px}.check-row input{width:auto;margin:0}.progress-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:6px;font-family:Inter,sans-serif;font-weight:800}.progress-head span:first-child{background:var(--secondary);color:#fff;padding:6px 14px;border:1px solid var(--outline);border-radius:999px}.progress{height:14px;background:var(--secondary);border:2px solid var(--outline);border-radius:999px;overflow:hidden;margin-bottom:24px}.progress div{height:100%;width:0;background:var(--primary-card);transition:.35s ease}.question-card h2{font-size:32px;line-height:40px;margin:0 0 24px}.option-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.option-btn{background:#fff;border:2px solid var(--outline);border-radius:16px;padding:18px;text-align:left;font-family:Inter,sans-serif;font-weight:700;cursor:pointer;transition:.12s ease;display:flex;gap:12px;align-items:center}.option-btn:hover{transform:translate(-2px,-2px);box-shadow:var(--shadow)}.option-btn.selected{background:var(--primary-card);color:#6e5100}.option-letter{width:36px;height:36px;border:2px solid var(--outline);border-radius:50%;display:grid;place-items:center;background:var(--secondary-card);flex:none}textarea{min-height:190px;resize:vertical}.answer-label{display:block}.autosave{display:inline-flex;align-items:center;gap:6px;margin-top:12px}.round-icon,.success-icon{width:130px;height:130px;border:2px solid var(--outline);box-shadow:var(--shadow);border-radius:999px;background:var(--secondary-card);display:grid;place-items:center;margin-bottom:20px}.round-icon span,.success-icon span{font-size:74px;color:var(--secondary)}.round-icon.warning{background:var(--primary-card)}.success-icon{background:var(--tertiary-card)}.success-icon span{color:var(--tertiary)}.review-layout{display:grid;grid-template-columns:2fr 1fr;gap:24px}.review-main p{font-size:20px;color:var(--muted)}#review-cards{display:grid;gap:16px}.summary-card{background:#fff;border:2px solid var(--outline);border-radius:18px;padding:20px;box-shadow:var(--soft)}.summary-card h3{margin:0 0 12px;color:var(--secondary);font-size:28px}.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.summary-grid div{background:var(--low);border:1px solid #d3c5ac;border-radius:12px;padding:12px}.summary-grid strong{font-size:28px;color:var(--primary)}.project-card{background:var(--tertiary-card);color:#002107}.warning-card{background:var(--error-card);align-self:start}.warning-card h3{font-size:26px;color:#93000a;margin-top:0}.warning-card .outline-btn{width:100%;margin-top:12px}.warning-card .stamp-btn{width:100%;margin-top:12px}.receipt{width:100%;text-align:left;background:var(--low);border:2px solid var(--outline);border-radius:16px;padding:18px;margin:20px 0}.receipt p{margin:8px 0;font-size:16px}.bottom-nav{position:fixed;bottom:0;left:0;z-index:25;width:100%;display:flex;justify-content:center;gap:18px;padding:12px 16px;background:var(--low);border-top:2px solid var(--outline);box-shadow:0 -4px 10px rgba(0,0,0,.08)}.bottom-nav.hidden{display:none}.bottom-nav button{background:transparent;border:0;border-radius:12px;color:var(--muted);font-family:Inter,sans-serif;font-weight:800;padding:8px 22px;display:flex;flex-direction:column;align-items:center;cursor:pointer}.bottom-nav button.active{background:var(--primary-card);color:#6e5100;border:2px solid var(--outline);border-radius:999px;box-shadow:var(--shadow)}.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:50;display:none;align-items:center;justify-content:center;padding:20px}.modal.active{display:flex}.modal-card{background:#fff;border:2px solid var(--outline);border-radius:18px;max-width:520px;width:100%;padding:24px;position:relative}.modal-close{position:absolute;top:12px;right:12px;width:36px;height:36px;border:2px solid var(--outline);border-radius:50%;background:var(--primary-card);cursor:pointer;font-weight:800}#navigator-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.nav-dot{border:2px solid var(--outline);border-radius:12px;background:var(--low);padding:12px;font-weight:800;cursor:pointer}.nav-dot.answered{background:var(--tertiary-card)}.nav-dot.current{background:var(--primary-card)}.loading{opacity:.65;pointer-events:none}.validation-message{display:none;margin-top:16px;background:var(--error-card);color:#93000a;border:2px solid var(--outline);border-radius:14px;padding:12px 16px;font-family:Inter,sans-serif;font-weight:800;box-shadow:var(--soft)}.validation-message.show{display:flex;align-items:center;gap:8px}.validation-message.show:before{content:'warning';font-family:'Material Symbols Outlined';font-size:20px;font-variation-settings:'FILL' 0,'wght' 400,'GRAD' 0,'opsz' 24}.option-grid.validation-active{animation:shake .25s ease}@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}@media(max-width:800px){.topbar{padding:10px 16px}.brand strong{font-size:18px}.brand span,#student-chip{display:none}.brand img{width:42px;height:42px}.screen-wrap{padding:28px 16px 104px}.entry-grid,.review-layout{grid-template-columns:1fr}.hero-card,.form-card,.center-card,.wide-card,.question-card,.warning-card{padding:22px}.hero-card h1,.center-card h1,.wide-card h1,.review-main h1{font-size:32px;line-height:38px}.question-card h2{font-size:26px;line-height:34px}.option-grid,.info-grid,.summary-grid{grid-template-columns:1fr}.bottom-nav{gap:4px;justify-content:space-around}.bottom-nav button{padding:8px 10px;font-size:12px}.bottom-nav button.active{padding:8px 16px}.progress-head{font-size:13px;gap:8px}.top-meta{font-size:13px}.timer-pill{padding:7px 12px}.hero-card img,.logo-large{width:105px;height:105px}}@media print{.topbar,.bottom-nav,.modal{display:none!important}.screen-wrap{padding:0}.screen{display:block!important}.screen:not(#screen-success){display:none!important}}

/* Premium UI additions */
body:before{content:'';position:fixed;inset:0;z-index:-2;pointer-events:none;background:radial-gradient(circle at 12px 12px,rgba(121,89,0,.08) 2px,transparent 2px),radial-gradient(circle at 44px 44px,rgba(105,84,140,.06) 2px,transparent 2px);background-size:64px 64px;opacity:.75}.taps-app:before,.taps-app:after{content:'';position:fixed;border-radius:999px;filter:blur(90px);pointer-events:none;z-index:-1}.taps-app:before{width:320px;height:320px;left:-120px;bottom:-120px;background:rgba(255,194,26,.25)}.taps-app:after{width:360px;height:360px;right:-140px;top:80px;background:rgba(105,84,140,.12)}.premium-topbar{background:rgba(255,249,236,.92);backdrop-filter:blur(14px);border-left:2px solid var(--outline);border-right:2px solid var(--outline);border-radius:0 0 20px 20px;box-shadow:0 10px 30px rgba(59,39,92,.06)}.brand-badge{background:#fff;border:2px solid var(--outline);border-radius:18px;padding:8px 14px;box-shadow:4px 4px 0 rgba(0,0,0,.10)}.brand-badge img{width:54px;height:54px}.school-tag{display:inline-flex;align-items:center;width:max-content;background:var(--primary-card);color:#6e5100;border:2px solid var(--outline);border-radius:999px;padding:6px 14px;font-family:Inter,sans-serif;font-size:13px;font-weight:800;box-shadow:2px 2px 0 #111;margin-bottom:16px}.premium-hero{position:relative;overflow:hidden}.premium-hero:after{content:'school';font-family:'Material Symbols Outlined';position:absolute;right:-20px;bottom:-40px;font-size:180px;color:rgba(36,15,68,.08);font-variation-settings:'FILL' 1,'wght' 400,'GRAD' 0,'opsz' 24}.mini-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.mini-metrics span{background:#fff;border:2px solid var(--outline);border-radius:999px;padding:8px 14px;font-family:Inter,sans-serif;font-weight:800;color:var(--secondary)}.welcome-card{position:relative;overflow:hidden}.welcome-card:before{content:'';position:absolute;inset:12px;border:1px solid rgba(255,194,26,.38);border-radius:14px;pointer-events:none}.exam-overview{width:100%;background:linear-gradient(135deg,#fff 0%,#fffceb 100%);border:2px solid var(--outline);border-radius:18px;padding:18px;margin:22px 0 8px;box-shadow:var(--soft);position:relative;z-index:1}.exam-overview h3{margin:0 0 14px;color:var(--secondary);font-size:24px}.overview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.overview-grid span{display:flex;flex-direction:column;gap:4px;background:var(--low);border:1px solid #d3c5ac;border-radius:14px;padding:12px;color:var(--muted);font-family:Inter,sans-serif}.overview-grid strong{color:var(--primary);font-size:13px;text-transform:uppercase;letter-spacing:.04em}.premium-question{position:relative;overflow:hidden}.premium-question:before{content:'';position:absolute;right:-70px;top:-70px;width:180px;height:180px;background:rgba(255,194,26,.15);border-radius:999px}.question-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}.question-meta span{display:inline-flex;align-items:center;gap:6px;border:2px solid var(--outline);border-radius:999px;background:var(--low);padding:7px 13px;font-family:Inter,sans-serif;font-weight:800;font-size:14px;color:var(--secondary)}.question-meta span:first-child{background:var(--primary-card);color:#6e5100}.option-btn{position:relative}.option-text{flex:1}.selected-check{margin-left:auto;color:var(--tertiary);font-variation-settings:'FILL' 1,'wght' 600,'GRAD' 0,'opsz' 24}.option-btn.selected{box-shadow:var(--shadow);transform:translate(-1px,-1px);border-width:3px}.option-btn.selected .option-letter{background:#fff;color:var(--primary)}.save-badge{width:max-content;max-width:100%;display:inline-flex;align-items:center;gap:8px;margin-top:16px;background:var(--tertiary-card);color:#002107;border:2px solid var(--outline);border-radius:999px;padding:8px 14px;font-family:Inter,sans-serif;font-weight:800;font-size:14px;box-shadow:2px 2px 0 rgba(0,0,0,.75)}.save-badge.is-saving{background:var(--secondary-card);color:var(--secondary)}.save-badge.flash{animation:badgePop .55s ease}@keyframes badgePop{0%{transform:scale(.96)}45%{transform:scale(1.04)}100%{transform:scale(1)}}.timer-pill{display:inline-flex;align-items:center;gap:6px}.timer-pill.timer-warning{background:#ffdf9e;color:#5b4300;animation:timerPulse 1.1s infinite}.timer-pill.timer-danger{background:var(--error-card);color:#93000a;animation:timerPulse .75s infinite}@keyframes timerPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.04)}}.navigator-card{max-width:640px}.modal-card h2{margin-top:0;color:var(--secondary);font-size:30px}.modal-subtitle{margin-top:-8px;color:var(--muted);font-size:16px;line-height:24px}.navigator-legend{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 18px}.navigator-legend span{display:inline-flex;align-items:center;gap:6px;font-family:Inter,sans-serif;font-size:13px;font-weight:800;color:var(--muted)}.navigator-legend i{width:16px;height:16px;border:2px solid var(--outline);border-radius:5px;display:inline-block}.legend-current{background:var(--primary-card)}.legend-answered{background:var(--tertiary-card)}.legend-unanswered{background:var(--low)}.nav-dot{display:flex;flex-direction:column;gap:2px;align-items:center;justify-content:center;min-height:58px}.nav-dot span{font-size:18px}.nav-dot small{font-size:10px;font-family:Inter,sans-serif;color:var(--muted)}.confirm-card{text-align:center;max-width:520px}.round-icon.small{width:82px;height:82px;margin:0 auto 16px}.round-icon.small span{font-size:44px}.confirm-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:18px}.confirm-actions .stamp-btn,.confirm-actions .outline-btn{min-width:180px}.success-logo{width:92px;height:92px;object-fit:contain;margin-bottom:12px}.success{position:relative;overflow:hidden}.success:after{content:'verified';font-family:'Material Symbols Outlined';position:absolute;right:-25px;bottom:-32px;font-size:150px;color:rgba(0,110,41,.08);font-variation-settings:'FILL' 1,'wght' 400,'GRAD' 0,'opsz' 24}.receipt{position:relative;z-index:1}.receipt p:last-child{background:#fff;border:1px solid #d3c5ac;border-radius:10px;padding:9px 10px}
@media(max-width:800px){.premium-topbar{border-left:0;border-right:0;border-radius:0}.brand-badge{padding:6px 8px;border-radius:14px}.brand-badge img{width:42px;height:42px}.overview-grid{grid-template-columns:1fr}.question-meta{gap:7px}.question-meta span{font-size:12px;padding:6px 10px}.confirm-actions{flex-direction:column}.confirm-actions .stamp-btn,.confirm-actions .outline-btn{width:100%}.school-tag{font-size:12px}.save-badge{font-size:12px}.top-meta .timer-pill .material-symbols-outlined{display:none}}


/* Update: keep autosave in background and make premium header radius equal on all sides */
.save-badge, .autosave.save-badge {
  display: none !important;
}
.premium-topbar {
  border: 2px solid var(--outline) !important;
  border-radius: 20px !important;
  overflow: hidden;
}
@media(max-width:800px){
  .premium-topbar {
    border: 2px solid var(--outline) !important;
    border-radius: 18px !important;
  }
}


.transition-actions{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;margin-top:10px}.transition-actions .outline-btn,.transition-actions .stamp-btn{min-width:220px}
@media(max-width:600px){.transition-actions{width:100%;flex-direction:column}.transition-actions .outline-btn,.transition-actions .stamp-btn{width:100%;min-width:0}}

/* Section B exam integrity controls */
.integrity-note{
  display:none;
  margin-top:10px;
  padding:10px 12px;
  border:2px solid var(--ink);
  border-radius:14px;
  background:#ffdad6;
  color:#93000a;
  font-weight:800;
  font-size:14px;
  line-height:1.35;
  box-shadow:3px 3px 0 rgba(0,0,0,.9);
}
.integrity-note.show{display:block;}
#answer-b{
  -webkit-user-select:text;
  user-select:text;
}


/* Update: submission background splash animation and extra header top spacing */
.taps-app{
  padding-top:18px !important;
}
.premium-topbar,.topbar{
  top:18px !important;
  padding-top:18px !important;
  padding-bottom:18px !important;
}
#screen-success{
  position:relative;
  isolation:isolate;
}
#screen-success.active::before{
  content:'';
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:-1;
  background:
    radial-gradient(circle at 18% 22%, rgba(255,194,26,.32), transparent 24%),
    radial-gradient(circle at 82% 18%, rgba(215,190,254,.34), transparent 26%),
    radial-gradient(circle at 76% 80%, rgba(106,228,126,.24), transparent 24%),
    radial-gradient(circle at 24% 82%, rgba(255,223,158,.28), transparent 23%);
  animation:successSplashGlow 4.8s ease-in-out infinite alternate;
}
.submission-splash-canvas{
  position:fixed;
  inset:0;
  width:100vw;
  height:100vh;
  pointer-events:none;
  z-index:15;
}
.success .success-icon{
  animation:successStampPop .72s cubic-bezier(.2,.9,.2,1.25) both;
}
.success .center-card,.center-card.success{
  position:relative;
  z-index:16;
}
@keyframes successSplashGlow{
  0%{filter:saturate(1);transform:scale(1)}
  100%{filter:saturate(1.18);transform:scale(1.03)}
}
@keyframes successStampPop{
  0%{transform:scale(.72) rotate(-8deg);opacity:0}
  65%{transform:scale(1.08) rotate(3deg);opacity:1}
  100%{transform:scale(1) rotate(0)}
}
@media(max-width:800px){
  .taps-app{padding-top:12px !important;}
  .premium-topbar,.topbar{top:12px !important;padding-top:14px !important;padding-bottom:14px !important;}
}
@media (prefers-reduced-motion: reduce){
  #screen-success.active::before,.success .success-icon{animation:none !important;}
}