:root {
  color-scheme: light;
  --bg: #f6f4ef;
  --ink: #141922;
  --muted: #66707d;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-strong: rgba(255, 255, 255, 0.94);
  --line: rgba(20, 25, 34, 0.14);
  --blue: #003688;
  --blue-deep: #001f5f;
  --red: #dc241f;
  --focus: rgba(0, 54, 136, 0.28);
  --shadow: 0 28px 70px rgba(20, 25, 34, 0.16);
  --stage-shadow: 0 36px 90px rgba(20, 25, 34, 0.18);
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(120deg, rgba(0, 54, 136, 0.09), transparent 34%),
    linear-gradient(300deg, rgba(220, 36, 31, 0.1), transparent 36%),
    radial-gradient(circle at 50% 4%, rgba(255, 255, 255, 0.95), transparent 42%),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 30;
  transform: translateY(-220%);
  border-radius: 6px;
  background: var(--ink);
  color: #fff;
  padding: 0.55rem 0.8rem;
}

.skip-link:focus {
  transform: translateY(0);
}

.page-shell {
  min-height: 100vh;
  padding: 18px;
}

.roundel-workbench {
  min-height: calc(100vh - 36px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 16px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(120px, 0.7fr) minmax(0, 1.4fr) minmax(180px, 0.8fr);
  gap: 16px;
  align-items: center;
  min-height: 76px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 12px 38px rgba(20, 25, 34, 0.08);
  padding: 12px 14px;
  backdrop-filter: blur(18px);
}

.home-link {
  justify-self: start;
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 820;
  letter-spacing: 0;
  text-decoration: none;
}

.home-link:hover {
  text-decoration: underline;
}

.brand-lockup {
  display: inline-grid;
  grid-template-columns: 44px minmax(0, max-content);
  gap: 12px;
  align-items: center;
  justify-self: center;
  min-width: 0;
}

.roundel-mark {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background:
    radial-gradient(circle, #fff 0 42%, transparent 43%),
    var(--red);
  box-shadow: inset 0 0 0 1px rgba(20, 25, 34, 0.08);
}

.roundel-mark::after {
  content: "";
  position: absolute;
  left: -5px;
  right: -5px;
  top: 18px;
  height: 9px;
  border-radius: 2px;
  background: var(--blue);
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 760;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.45rem, 3vw, 2.3rem);
  line-height: 0.98;
  font-weight: 880;
  letter-spacing: 0;
}

.topbar-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.quick-actions,
.export-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.export-status {
  min-width: 0;
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 650;
  white-space: nowrap;
}

.export-button,
.menu-action,
.icon-button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  cursor: pointer;
  padding: 0 16px;
  font-size: 0.96rem;
  font-weight: 820;
  letter-spacing: 0;
  box-shadow: 0 14px 26px rgba(0, 54, 136, 0.22);
  transition: background-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.icon-button {
  width: 44px;
  min-width: 44px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  background: rgba(255, 255, 255, 0.7);
  color: var(--blue);
  box-shadow: none;
  border: 1px solid rgba(0, 54, 136, 0.14);
}

.icon-button svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.export-button-secondary,
.menu-action-secondary {
  background: rgba(255, 255, 255, 0.82);
  color: var(--blue);
  border: 1px solid rgba(0, 54, 136, 0.16);
  box-shadow: none;
}

.export-button:hover,
.menu-action:hover {
  background: var(--blue-deep);
  box-shadow: 0 18px 30px rgba(0, 54, 136, 0.26);
  transform: translateY(-1px);
}

.icon-button:hover,
.export-button-secondary:hover,
.menu-action-secondary:hover {
  background: #fff;
  color: var(--blue-deep);
  box-shadow: 0 12px 22px rgba(0, 54, 136, 0.12);
  transform: translateY(-1px);
}

.export-button:focus-visible,
.menu-action:focus-visible,
.icon-button:focus-visible,
.style-button:focus-visible,
.font-button:focus-visible,
.color-button:focus-visible,
.toggle:focus-within,
.bar-grip:focus-visible,
.hotspot:focus-visible,
.live-text-editor:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.export-button:disabled,
.menu-action:disabled,
.icon-button:disabled {
  cursor: progress;
  opacity: 0.72;
  transform: none;
}

.icon-button:disabled {
  cursor: not-allowed;
}

.studio-form {
  min-height: 0;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 14px;
}

.stage-shell {
  min-height: 0;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    linear-gradient(90deg, rgba(20, 25, 34, 0.04) 1px, transparent 1px),
    linear-gradient(0deg, rgba(20, 25, 34, 0.04) 1px, transparent 1px),
    rgba(255, 255, 255, 0.45);
  background-size: 36px 36px;
  box-shadow: var(--stage-shadow);
  overflow: hidden;
}

.roundel-stage {
  position: relative;
  width: min(100%, calc((100vh - 170px) * 10 / 7), 1400px);
  aspect-ratio: 10 / 7;
  isolation: isolate;
}

.roundel-stage.is-intro {
  animation: stage-warm-in 1700ms ease both;
}

.roundel-stage svg {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.roundel-stage #roundel-text {
  opacity: 0;
}

.roundel-stage.is-intro #roundel-art {
  animation: sign-flicker-on 1650ms ease both;
}

.roundel-stage.is-intro #bulb-layer {
  animation: bulb-layer-warmup 1650ms ease both;
}

.roundel-stage.is-intro #bulb-layer .bulb-cores circle {
  animation: bulb-core-flicker 1650ms ease both;
}

.roundel-stage.is-intro .live-text-editor {
  animation: text-flicker-on 1650ms ease both;
}

.live-text-editor {
  position: absolute;
  z-index: 6;
  margin: 0;
  border: 0;
  background: transparent;
  color: #fff;
  caret-color: #fff;
  resize: none;
  overflow: hidden;
  text-align: center;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
  outline: none;
}

.live-text-editor::selection {
  background: rgba(255, 255, 255, 0.32);
}

.drag-readout {
  position: absolute;
  z-index: 20;
  min-width: 84px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 999px;
  background: rgba(20, 25, 34, 0.78);
  color: #fff;
  padding: 0.36rem 0.68rem;
  font-size: 0.78rem;
  font-weight: 820;
  letter-spacing: 0;
  text-align: center;
  box-shadow: 0 14px 30px rgba(20, 25, 34, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -160%) scale(0.96);
  transition: opacity 120ms ease, transform 120ms ease;
  backdrop-filter: blur(12px);
}

.drag-readout.is-visible {
  opacity: 1;
  transform: translate(-50%, -170%) scale(1);
}

.hotspot,
.bar-grip {
  position: absolute;
  z-index: 4;
  border: 0;
  background: transparent;
  cursor: pointer;
  touch-action: none;
}

.hotspot-background {
  inset: 5% 6%;
  z-index: 2;
  border-radius: 12px;
}

.hotspot-ring {
  left: 50%;
  top: 50%;
  width: 49%;
  height: 69%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.hotspot-background::before,
.hotspot-ring::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity 180ms ease, transform 180ms ease;
}

.hotspot-background::before {
  border: 1px solid rgba(0, 54, 136, 0.18);
  background: rgba(255, 255, 255, 0.04);
}

.hotspot-ring::before {
  border: 2px solid rgba(0, 54, 136, 0.24);
  box-shadow: inset 0 0 0 18px rgba(220, 36, 31, 0.06);
  animation: hotspot-pulse 2200ms ease 900ms 2;
}

.hotspot:hover::before,
.hotspot:focus-visible::before,
.hotspot.is-open::before,
.roundel-stage.is-guiding .hotspot::before {
  opacity: 1;
}

.bar-grip {
  width: 20px;
  height: 72px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.56);
  box-shadow: 0 10px 24px rgba(20, 25, 34, 0.16);
  opacity: 0.3;
  transform: translate(-50%, -50%);
  transition: opacity 160ms ease, transform 160ms ease;
}

.roundel-stage:hover .bar-grip,
.bar-grip:focus-visible,
.bar-grip.is-open,
.roundel-stage.is-dragging .bar-grip,
.roundel-stage.is-guiding .bar-grip {
  opacity: 1;
}

.roundel-stage.is-guiding .bar-grip {
  animation: grip-guide-pop 1400ms ease both;
}

.bar-grip:hover {
  transform: translate(-50%, -50%) scale(1.04);
}

.bar-grip::before,
.bar-grip::after {
  content: "";
  position: absolute;
  left: 8px;
  width: 4px;
  height: 34px;
  border-radius: 999px;
  background: var(--blue);
}

.bar-grip::before {
  top: 12px;
}

.bar-grip::after {
  bottom: 12px;
}

.bar-grip-thickness {
  width: 112px;
  height: 18px;
}

.bar-grip-thickness::before,
.bar-grip-thickness::after {
  left: 18px;
  right: 18px;
  width: auto;
  height: 4px;
}

.bar-grip-thickness::before {
  top: 5px;
}

.bar-grip-thickness::after {
  bottom: 5px;
}

.bar-grip-thickness:hover {
  transform: translate(-50%, -50%) scale(1.04);
}

.floating-menu {
  position: absolute;
  z-index: 12;
  width: min(320px, calc(100% - 24px));
  border: 1px solid rgba(20, 25, 34, 0.12);
  border-radius: 12px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  padding: 14px;
  backdrop-filter: blur(20px);
}

.floating-menu[hidden] {
  display: none;
}

.menu-ring {
  left: 28px;
  top: 28px;
}

.menu-bar {
  right: 28px;
  top: 38%;
}

.menu-text {
  left: 50%;
  top: 68%;
  transform: translateX(-50%);
}

.menu-background {
  right: 28px;
  top: 28px;
}

.menu-title {
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 840;
  letter-spacing: 0;
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  max-height: 235px;
  overflow: auto;
  padding-right: 2px;
}

.color-button {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  padding: 0 8px;
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0;
  text-align: left;
}

.color-button::before {
  content: "";
  width: 30px;
  height: 22px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, transparent 0 17%, var(--bar) 17% 83%, transparent 83%),
    radial-gradient(circle, #fff 0 42%, var(--ring) 43% 100%);
  box-shadow: inset 0 0 0 1px rgba(20, 25, 34, 0.12);
}

.color-button[data-color="cycles"]::before,
.color-button[data-color="airline"]::before {
  box-shadow: inset 0 0 0 2px var(--ring);
}

.font-grid,
.toggle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.toggle-grid {
  margin-top: 12px;
}

.font-button,
.toggle {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.font-button {
  cursor: pointer;
  padding: 0 10px;
  font-size: 0.84rem;
  font-weight: 780;
  letter-spacing: 0;
}

.font-button[data-font="gill"] {
  font-family: "Gill Sans", "Gill Sans MT", "Avenir Next", "Trebuchet MS", Arial, sans-serif;
}

.font-button[data-font="avenir"] {
  font-family: "Avenir Next", Avenir, "Gill Sans", "Trebuchet MS", Arial, sans-serif;
}

.font-button[data-font="trebuchet"] {
  font-family: "Trebuchet MS", "Gill Sans", "Avenir Next", Arial, sans-serif;
}

.font-button[data-font="rounded"] {
  font-family: "Arial Rounded MT Bold", "Arial Rounded MT", "Trebuchet MS", Arial, sans-serif;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  font-size: 0.82rem;
  font-weight: 760;
  letter-spacing: 0;
}

.toggle-wide {
  grid-column: 1 / -1;
  width: 100%;
}

.toggle input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--blue);
}

.range-field {
  display: grid;
  gap: 8px;
}

.range-field + .range-field,
.font-grid + .range-field {
  margin-top: 12px;
}

.range-field > span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 780;
}

.range-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 4rem;
  gap: 10px;
  align-items: center;
}

.range-row input[type="range"] {
  width: 100%;
  accent-color: var(--blue);
}

.range-row output {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 0.35rem 0.45rem;
  font-size: 0.8rem;
  font-weight: 780;
  text-align: center;
}

.menu-action {
  width: 100%;
  margin-top: 12px;
}

.menu-action + .menu-action {
  margin-top: 8px;
}

.style-strip {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(96px, 118px);
  gap: 10px;
  align-items: stretch;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 12px 34px rgba(20, 25, 34, 0.09);
  padding: 10px;
  backdrop-filter: blur(18px);
}

.style-button {
  display: grid;
  grid-template-rows: 42px auto;
  gap: 6px;
  place-items: center;
  min-height: 72px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.66);
  color: var(--ink);
  cursor: pointer;
  padding: 8px;
  font-size: 0.78rem;
  font-weight: 780;
  letter-spacing: 0;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.style-button:hover {
  transform: translateY(-1px);
  background: #fff;
}

.style-button.is-active,
.font-button.is-active,
.color-button.is-active {
  border-color: rgba(0, 54, 136, 0.42);
  background: rgba(0, 54, 136, 0.08);
  color: var(--blue-deep);
}

.style-mini {
  position: relative;
  width: 52px;
  height: 38px;
}

.style-mini::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--mini-hole) 0 42%, transparent 43%),
    var(--mini-ring);
  box-shadow: inset 0 0 0 1px rgba(20, 25, 34, 0.12);
}

.style-mini span {
  position: absolute;
  left: 0;
  right: 0;
  top: 14px;
  height: 10px;
  border-radius: 2px;
  background: var(--mini-bar);
  box-shadow: 0 1px 0 rgba(20, 25, 34, 0.08);
}

.style-mini-halogen::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  top: -1px;
  height: 36px;
  border-radius: 10px;
  background:
    radial-gradient(circle at 14% 16%, var(--mini-glow) 0 4px, transparent 5px),
    radial-gradient(circle at 86% 16%, var(--mini-glow) 0 4px, transparent 5px),
    radial-gradient(circle at 14% 84%, var(--mini-glow) 0 4px, transparent 5px),
    radial-gradient(circle at 86% 84%, var(--mini-glow) 0 4px, transparent 5px);
  filter: drop-shadow(0 0 6px rgba(255, 200, 109, 0.9));
  pointer-events: none;
}

@media (max-width: 980px) {
  .page-shell {
    padding: 12px;
  }

  .roundel-workbench {
    min-height: calc(100vh - 24px);
  }

  .topbar {
    grid-template-columns: 1fr auto;
  }

  .home-link {
    display: none;
  }

  .brand-lockup {
    justify-self: start;
  }

  .export-status {
    display: none;
  }

  .floating-menu {
    width: min(300px, calc(100% - 18px));
  }

  .menu-ring,
  .menu-background {
    left: 9px;
    right: auto;
    top: 9px;
  }

  .menu-bar {
    right: 9px;
    top: 33%;
  }

  .menu-text {
    top: 70%;
  }
}

@media (max-width: 640px) {
  .topbar {
    grid-template-columns: 1fr;
    gap: 10px;
    align-items: start;
  }

  .brand-lockup {
    grid-template-columns: 36px minmax(0, 1fr);
  }

  .roundel-mark {
    width: 36px;
    height: 36px;
  }

  .roundel-mark::after {
    top: 15px;
    height: 8px;
  }

  .topbar-actions {
    justify-content: stretch;
    flex-wrap: wrap;
  }

  .export-button {
    width: 100%;
  }

  .quick-actions,
  .export-actions {
    width: 100%;
  }

  .quick-actions {
    justify-content: stretch;
  }

  .quick-actions .icon-button {
    flex: 1;
  }

  .export-actions .export-button {
    flex: 1;
    width: auto;
  }

  .stage-shell {
    align-items: start;
  }

  .floating-menu {
    position: fixed;
    left: 10px;
    right: 10px;
    top: auto;
    bottom: max(10px, env(safe-area-inset-bottom));
    width: auto;
    max-height: min(68vh, 520px);
    overflow: auto;
    border-radius: 14px;
    transform: none;
    z-index: 50;
  }

  .floating-menu::before {
    content: "";
    display: block;
    width: 42px;
    height: 4px;
    border-radius: 999px;
    margin: 0 auto 12px;
    background: rgba(20, 25, 34, 0.2);
  }

  .color-grid,
  .font-grid,
  .toggle-grid {
    grid-template-columns: 1fr;
  }

  .color-grid {
    max-height: 180px;
  }

  .style-strip {
    grid-auto-columns: minmax(86px, 96px);
    padding: 8px;
  }

  .style-button {
    grid-template-rows: 34px auto;
    min-height: 64px;
    font-size: 0.72rem;
  }

  .style-mini {
    transform: scale(0.86);
  }
}

@keyframes hotspot-pulse {
  0%,
  100% {
    opacity: 0;
    transform: scale(1);
  }

  38% {
    opacity: 0.8;
    transform: scale(1.025);
  }
}

@keyframes stage-warm-in {
  0% {
    opacity: 0.48;
    transform: translateY(10px) scale(0.985);
  }

  18% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  23% {
    filter: brightness(0.72) saturate(0.82);
  }

  32%,
  47% {
    filter: brightness(1.08) saturate(1.06);
  }

  38% {
    filter: brightness(0.82) saturate(0.92);
  }

  100% {
    filter: none;
  }
}

@keyframes sign-flicker-on {
  0%,
  12% {
    opacity: 0.38;
  }

  17% {
    opacity: 0.95;
  }

  22% {
    opacity: 0.52;
  }

  31%,
  100% {
    opacity: 1;
  }
}

@keyframes text-flicker-on {
  0%,
  18% {
    opacity: 0.25;
  }

  24% {
    opacity: 0.96;
  }

  29% {
    opacity: 0.42;
  }

  40%,
  100% {
    opacity: 1;
  }
}

@keyframes bulb-layer-warmup {
  0%,
  18% {
    opacity: 0;
  }

  24% {
    opacity: 0.7;
  }

  30% {
    opacity: 0.2;
  }

  45%,
  100% {
    opacity: 1;
  }
}

@keyframes bulb-core-flicker {
  0%,
  14% {
    opacity: 0.18;
  }

  20% {
    opacity: 1;
  }

  27% {
    opacity: 0.35;
  }

  36%,
  100% {
    opacity: 1;
  }
}

@keyframes grip-guide-pop {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
  }

  36% {
    transform: translate(-50%, -50%) scale(1.12);
  }

  68% {
    transform: translate(-50%, -50%) scale(1.04);
  }
}

@media (prefers-reduced-motion: reduce) {
  .export-button,
  .menu-action,
  .style-button,
  .bar-grip,
  .hotspot::before,
  .roundel-stage.is-intro,
  .roundel-stage.is-intro #roundel-art,
  .roundel-stage.is-intro #bulb-layer,
  .roundel-stage.is-intro #bulb-layer .bulb-cores circle,
  .roundel-stage.is-intro .live-text-editor,
  .roundel-stage.is-guiding .bar-grip {
    transition: none;
    animation: none;
  }
}