* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.5 var(--qr-font-body);
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
button, input, select { accent-color: var(--accent); }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--accent-ring); outline-offset: 2px; }
::selection { background: var(--accent-soft); }
[hidden] { display: none !important; }

.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark { width: 34px; height: 34px; flex: none; object-fit: contain; }
.brand-copy { display: flex; flex-direction: column; line-height: 1; }
.brand-name {
  font: 400 24px/1 var(--qr-font-heading);
  letter-spacing: .01em;
  color: var(--midnight);
}
.brand-product {
  margin-top: 4px;
  color: var(--copper-dark);
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: .42em;
  text-transform: uppercase;
}
.brand.on-dark .brand-name { color: var(--parchment-soft); }
.brand.on-dark .brand-product { color: var(--copper-light); }

/* The signed-out layout follows Recruit's two-panel auth shell. */
.login-shell { min-height: 100vh; min-width: 0; display: grid; grid-template-columns: minmax(420px, 5fr) minmax(0, 7fr); }
.login-story {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  padding: 40px;
  background: var(--nav-bg);
  color: var(--nav-ink);
}
.login-story::before {
  content: '';
  position: absolute;
  z-index: 1;
  inset: 0;
  background: linear-gradient(90deg, color-mix(in srgb, var(--nav-bg) 48%, transparent), color-mix(in srgb, var(--nav-bg) 12%, transparent) 78%);
  pointer-events: none;
}
.login-story > .brand, .login-story > .story-copy, .login-story > .story-foot { position: relative; z-index: 2; }
.story-signal {
  position: absolute;
  z-index: 0;
  top: 15%;
  right: -25%;
  width: min(88%, 560px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--copper-light) 11%, transparent), transparent 58%);
  pointer-events: none;
}
.story-signal__orbit, .story-signal__wave, .story-signal__core { position: absolute; border-radius: 50%; }
.story-signal__orbit {
  inset: 5%;
  border: 1px solid color-mix(in srgb, var(--copper-light) 48%, transparent);
  box-shadow: 0 0 0 70px color-mix(in srgb, var(--copper-light) 4.5%, transparent), 0 0 0 150px color-mix(in srgb, var(--copper-light) 2.6%, transparent);
  animation: story-orbit 18s ease-in-out infinite alternate;
}
.story-signal__wave {
  inset: 38%;
  border: 1px solid color-mix(in srgb, var(--copper-light) 75%, transparent);
  opacity: 0;
  animation: story-wave 10.5s ease-out infinite;
}
.story-signal__wave:nth-child(3) { animation-delay: -3.5s; }
.story-signal__wave:nth-child(4) { animation-delay: -7s; }
.story-signal__core {
  top: calc(50% - 6px);
  left: calc(50% - 6px);
  width: 12px;
  height: 12px;
  background: var(--copper-light);
  box-shadow: 0 0 0 8px color-mix(in srgb, var(--copper-light) 13%, transparent), 0 0 32px 12px color-mix(in srgb, var(--copper-light) 17%, transparent);
  animation: story-core 5s ease-in-out infinite alternate;
}
@keyframes story-orbit {
  from { transform: rotate(-24deg) scale(.96, .76); }
  to { transform: rotate(-15deg) scale(1.04, .82); }
}
@keyframes story-wave {
  0% { transform: scale(.65); opacity: 0; }
  12% { opacity: .48; }
  85%, 100% { transform: scale(4); opacity: 0; }
}
@keyframes story-core {
  from { transform: scale(.9); opacity: .75; }
  to { transform: scale(1.14); opacity: 1; }
}
.story-copy { max-width: 460px; }
.eyebrow {
  color: var(--accent-text);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.login-story .eyebrow { color: var(--copper-light); }
.story-copy h2 {
  margin: 14px 0 0;
  color: var(--parchment-soft);
  font: 400 clamp(36px, 4vw, 48px)/1.14 var(--qr-font-heading);
  letter-spacing: -.014em;
}
.story-copy h2 em { color: var(--copper-light); }
.story-copy p { max-width: 390px; margin: 18px 0 0; color: var(--nav-ink-muted); font-size: 15px; line-height: 1.65; }
.story-foot { color: var(--nav-ink-muted); font-size: 12px; }
.login-main { display: flex; align-items: center; justify-content: center; min-width: 0; padding: 40px 32px; }
.login-inner { width: 100%; max-width: 420px; min-width: 0; }
.login-mobile-brand { display: none; position: relative; margin-bottom: 34px; padding-right: 72px; }
.mobile-tagline { margin: 12px 0 0; color: var(--ink-2); font: 400 20px/1.25 var(--qr-font-heading); }
.mobile-signal {
  position: absolute;
  top: 2px;
  right: 6px;
  width: 52px;
  height: 52px;
  border: 1px solid color-mix(in srgb, var(--copper) 34%, transparent);
  border-radius: 50%;
  box-shadow: 0 0 0 10px color-mix(in srgb, var(--copper) 7%, transparent);
  animation: mobile-signal-breathe 5s ease-in-out infinite alternate;
}
.mobile-signal::before, .mobile-signal::after {
  content: '';
  position: absolute;
  inset: 13px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--copper) 48%, transparent);
}
.mobile-signal::after { inset: 22px; background: var(--copper); }
@keyframes mobile-signal-breathe {
  from { transform: scale(.94); opacity: .7; }
  to { transform: scale(1.08); opacity: 1; }
}
.login-card h1, .page-heading h1 {
  margin: 8px 0 5px;
  font: 400 32px/1.25 var(--qr-font-heading);
  letter-spacing: -.014em;
}
.login-card > p { margin: 0; color: var(--ink-2); font-size: 15px; }
.login-card form { margin-top: 30px; }
label { display: block; margin: 0 0 8px; color: var(--ink-2); font-size: 13px; font-weight: 600; }
input, select {
  width: 100%;
  min-height: 42px;
  padding: 9px 12px;
  border: 1px solid var(--rule-2);
  border-radius: var(--qr-radius-2);
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow-1);
}
input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-ring); }
select { max-width: 460px; }
.login-card .primary { width: 100%; margin-top: 18px; }
.notice { min-height: 20px; margin: 14px 0 0; color: var(--ink-3); font-size: 13px; }
.notice.warn { color: var(--warning); }
.notice.error { color: var(--danger); }
.footnote { margin: 36px 0 0; color: var(--ink-3); font-size: 12px; text-align: center; }

/* Presenter workspace: Recruit's parchment, page headings, controls and cards. */
.shell { max-width: 1220px; margin: auto; padding: 24px 32px 16px; }
.topbar, .top-actions, .page-heading, .section-top, .controls, .meter-row,
.session-meta > div, .link-list a { display: flex; align-items: center; }
.topbar, .page-heading, .section-top, .session-meta > div, .link-list a { justify-content: space-between; }
.topbar {
  min-height: 68px;
  padding: 14px 20px;
  border-radius: var(--qr-radius-4);
  background: var(--nav-bg);
  box-shadow: var(--shadow-2);
}
.top-actions { gap: 16px; }
.topbar .text-button { color: var(--nav-ink); }
.topbar .text-button:hover { color: var(--copper-light); }
.page-heading { gap: 20px; padding: 42px 0 24px; align-items: end; }
.page-heading p { margin: 4px 0 0; color: var(--ink-2); font-size: 15px; }
.pill, .state-pill {
  display: inline-flex;
  align-items: center;
  border-radius: var(--qr-radius-control);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.pill { background: var(--nav-active); color: var(--nav-ink); }
.state-pill { background: var(--surface-sunken); color: var(--ink-2); }
.state-pill.live { background: var(--success-soft); color: var(--success); }
.state-pill.paused { background: var(--warning-soft); color: var(--warning); }
.state-pill.stopped { background: var(--surface-sunken); color: var(--ink-2); }
.operator-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(300px, .9fr); gap: 18px; }
.panel {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--rule);
  border-radius: var(--qr-radius-3);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.section-top { align-items: flex-start; gap: 16px; }
.section-top h2 { margin: 0; color: var(--ink); font-size: 16px; font-weight: 650; }
.section-top p { margin: 4px 0 0; color: var(--ink-3); font-size: 13px; }
.step { color: var(--copper); font: 400 21px/1 var(--qr-font-heading); }
#device-row { margin-top: 26px; }
.meter-row { margin: 22px 0 26px; gap: 14px; color: var(--ink-3); font-size: 12px; }
.meter-row > span:first-child { min-width: 100px; }
.meter { height: 7px; max-width: 270px; flex: 1; overflow: hidden; border-radius: var(--qr-radius-control); background: var(--surface-sunken); }
.meter > div { width: 0; height: 100%; background: var(--success); transition: width .1s var(--ease-standard); }
.controls { gap: 9px; flex-wrap: wrap; }
.controls button, .primary, .secondary, .danger {
  min-height: 40px;
  padding: 10px 16px;
  border: 1px solid transparent;
  border-radius: var(--qr-radius-control);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  transition: background .15s var(--ease-standard), border-color .15s var(--ease-standard);
}
.primary { background: var(--accent-fill); color: var(--accent-ink); box-shadow: var(--shadow-1); }
.primary:hover:not(:disabled) { background: var(--accent-fill-hover); }
.secondary { background: var(--surface); color: var(--ink); border-color: var(--rule-2); box-shadow: var(--shadow-1); }
.secondary:hover:not(:disabled) { background: var(--surface-2); border-color: var(--ink-3); }
.danger { background: var(--surface); color: var(--danger); border-color: var(--danger); }
.danger:hover:not(:disabled) { background: var(--danger-soft); }
.text-button { border: 0; background: transparent; color: var(--accent-text); font-size: 13px; font-weight: 600; padding: 8px 0; }
.text-button:hover { text-decoration: underline; }
.divider { height: 1px; margin: 25px 0; background: var(--rule); }
.caption-preview {
  min-height: 145px;
  margin: 20px 0 8px;
  padding: 20px 22px;
  border-radius: var(--qr-radius-3);
  background: var(--caption-bg);
  color: var(--caption-ink);
}
.caption-preview .eyebrow { color: var(--copper-light); }
.caption-preview p { margin: 12px 0 0; font: 400 26px/1.35 var(--qr-font-heading); }
.share-panel { align-self: start; }
.qr-card {
  display: grid;
  place-items: center;
  height: 202px;
  margin: 24px 0 16px;
  border: 1px dashed var(--rule-2);
  border-radius: var(--qr-radius-3);
  background: var(--surface-2);
  text-align: center;
}
.qr-card img { width: 178px; height: 178px; }
.qr-card p { max-width: 200px; color: var(--ink-3); font-size: 13px; line-height: 1.5; }
.link-list { border-top: 1px solid var(--rule); }
.link-list a { padding: 14px 1px; border-bottom: 1px solid var(--rule); color: var(--accent-text); font-size: 14px; text-decoration: none; }
.link-list a:hover { text-decoration: underline; }
.link-list a[aria-disabled='true'] { pointer-events: none; opacity: .45; }
.session-meta { margin: 24px 0; padding: 10px 14px; border-radius: var(--qr-radius-2); background: var(--surface-2); }
.session-meta > div { padding: 7px 0; color: var(--ink-3); font-size: 12px; }
.session-meta strong { color: var(--ink); font-size: 14px; }
.hint, footer { color: var(--ink-3); font-size: 12px; line-height: 1.55; }
.shell > footer { padding: 30px 0; text-align: center; }

/* Viewer and screen use the same branding, with caption contrast as the priority. */
.viewer-shell { display: flex; flex-direction: column; min-height: 100vh; max-width: 1200px; margin: auto; padding: 30px; }
.viewer-shell header { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.viewer-content { flex: 1; display: flex; flex-direction: column; justify-content: center; padding: 40px max(0px, 5vw); }
.viewer-content > p:first-of-type {
  max-width: 1050px;
  margin: 22px 0;
  color: var(--ink);
  font: 400 clamp(38px, 6vw, 76px)/1.2 var(--qr-font-heading);
  letter-spacing: -.014em;
}
.viewer-content #viewer-error { color: var(--warning); font-size: 14px; }
.viewer-shell footer { text-align: left; }
.screen { background: var(--caption-bg); color: var(--caption-ink); }
.screen .viewer-shell { max-width: 1700px; }
.screen .viewer-content > p:first-of-type { color: var(--caption-ink); font-size: clamp(48px, 6vw, 94px); }
.screen .viewer-shell footer { color: var(--screen-ink-muted); }
.screen .eyebrow { color: var(--copper-light); }
.large-text .viewer-content > p:first-of-type { font-size: clamp(52px, 8vw, 112px); }
.overlay, html:has(body.overlay) { background: transparent; color: var(--overlay-ink); }
.overlay .viewer-shell { max-width: unset; padding: 0; }
.overlay .viewer-content { justify-content: flex-end; align-items: center; text-align: center; padding: 0 5vw 5vh; }
.overlay .viewer-content .eyebrow, .overlay #viewer-error { display: none; }
.overlay .viewer-content > p:first-of-type {
  max-width: 1400px;
  margin: 0;
  color: var(--overlay-ink);
  font: 800 clamp(40px, 4.5vw, 72px)/1.25 var(--qr-font-body);
  text-shadow: 0 2px 6px var(--overlay-shadow), 0 2px 18px var(--overlay-shadow), -2px -2px 5px var(--overlay-shadow);
}

@media (max-width: 900px) {
  .login-shell { grid-template-columns: minmax(0, 1fr); }
  .login-story { display: none; }
  .login-main { padding: 48px 22px; }
  .login-mobile-brand { display: block; }
  .operator-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .shell { padding: 16px; }
  .topbar { padding: 12px 14px; }
  .top-actions { gap: 9px; }
  .page-heading { align-items: flex-start; padding: 30px 0 22px; flex-direction: column; }
  .panel { padding: 20px; }
  .viewer-shell { padding: 18px; }
  .viewer-content { padding: 25px 3vw; }
  .viewer-content > p:first-of-type { font-size: clamp(32px, 8vw, 56px); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .story-signal__orbit, .story-signal__wave, .story-signal__core, .mobile-signal { animation-name: none !important; }
  .story-signal__orbit { transform: rotate(-19deg) scale(1, .79); }
  .story-signal__wave { opacity: .22; }
  .story-signal__wave:nth-child(2) { transform: scale(1.4); }
  .story-signal__wave:nth-child(3) { transform: scale(2.5); }
  .story-signal__wave:nth-child(4) { transform: scale(3.6); }
}