:root {
  --studio-paper: #f3efe7;
  --studio-paper-bright: #fbfaf7;
  --studio-paper-deep: #e8dfd2;
  --studio-ink: #182b35;
  --studio-muted: #657177;
  --studio-faint: #8a918f;
  --studio-line: rgb(24 43 53 / .17);
  --studio-accent: #a66d4f;
  --studio-accent-soft: #dfc3af;
  --studio-gutter: clamp(22px, 4.6vw, 72px);
  --studio-ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }
html {
  min-width: 320px;
  overflow-x: clip;
  background: var(--studio-paper);
  color: var(--studio-ink);
  scroll-behavior: smooth;
}
body.studio-page {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  overflow-x: clip;
  background: var(--studio-paper);
  color: var(--studio-ink);
  font-family: "Be Vietnam Pro", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; }
button { color: inherit; cursor: pointer; }
button, a { touch-action: manipulation; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--studio-accent);
  outline-offset: 4px;
}
::selection { background: var(--studio-accent-soft); color: var(--studio-ink); }
[hidden] { display: none !important; }

.studio-experience {
  position: relative;
  isolation: isolate;
  min-height: 100dvh;
  overflow: hidden;
  background:
    radial-gradient(58% 68% at 92% 88%, rgb(205 169 137 / .22), transparent 72%),
    radial-gradient(48% 42% at 12% 2%, rgb(255 255 255 / .86), transparent 76%),
    var(--studio-paper);
}
.studio-experience::after {
  content: "";
  position: fixed;
  z-index: 30;
  inset: 0;
  pointer-events: none;
  opacity: .15;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.78' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='.14'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

.studio-stage {
  position: relative;
  min-height: 100dvh;
  overflow: hidden;
}
.studio-plane { position: absolute; inset: 0; }
.studio-frame {
  position: absolute;
  top: 104px;
  right: var(--studio-gutter);
  bottom: 176px;
  width: min(57vw, 860px);
  overflow: hidden;
  border: 1px solid var(--studio-line);
  border-radius: 3px;
  background:
    radial-gradient(circle at 66% 32%, rgb(211 183 161 / .45), transparent 48%),
    var(--studio-paper-deep);
  box-shadow: 0 34px 90px rgb(73 51 35 / .15);
}
.studio-frame::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgb(243 239 231 / .78), transparent 24%, transparent 84%, rgb(243 239 231 / .12)),
    linear-gradient(180deg, rgb(243 239 231 / .08), transparent 54%, rgb(28 37 40 / .2));
}
.studio-frame::after {
  content: "BẢN GỐC / XEM TRƯỚC";
  position: absolute;
  z-index: 4;
  right: 20px;
  bottom: 16px;
  color: rgb(255 255 255 / .76);
  font-size: 9px;
  letter-spacing: .15em;
}
.studio-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0;
  filter: saturate(.82) contrast(1.02) brightness(.98);
  transform: scale(1.018);
  transition: opacity 900ms var(--studio-ease), transform 1.6s var(--studio-ease);
}
.studio-frame.is-ready .studio-media { opacity: 1; transform: scale(1); }
.studio-frame__veil {
  position: absolute;
  z-index: 3;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 90px rgb(57 40 28 / .09);
}
.studio-media-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 18px;
  background:
    radial-gradient(circle at 48% 46%, rgb(219 188 164 / .7), rgb(164 174 170 / .42) 34%, transparent 35%),
    var(--studio-paper-bright);
  transition: opacity 700ms var(--studio-ease), visibility 0s linear 700ms;
}
.studio-frame.is-ready .studio-media-placeholder { opacity: 0; visibility: hidden; }
.studio-media-placeholder__orb {
  width: min(32vw, 340px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(135deg, #ead5c4 18%, #bdc1bb 68%, #52666a);
  box-shadow: 26px 24px 0 rgb(255 255 255 / .62);
  animation: studio-breathe 5s ease-in-out infinite;
}
.studio-media-placeholder__line {
  width: 52px;
  height: 1px;
  background: var(--studio-ink);
  transform-origin: left;
  animation: studio-pulse 2.4s var(--studio-ease) infinite;
}
@keyframes studio-breathe {
  0%, 100% { transform: scale(.97); }
  50% { transform: scale(1.025); }
}
@keyframes studio-pulse {
  0%, 100% { opacity: .24; transform: scaleX(.35); }
  50% { opacity: .82; transform: scaleX(1); }
}

.studio-hotspots {
  position: absolute;
  z-index: 6;
  inset: 104px var(--studio-gutter) 176px auto;
  width: min(57vw, 860px);
  pointer-events: none;
}
.studio-hotspot {
  position: absolute;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgb(255 255 255 / .72);
  border-radius: 50%;
  background: rgb(251 250 247 / .74);
  box-shadow: 0 8px 28px rgb(36 28 21 / .18);
  color: var(--studio-ink);
  pointer-events: auto;
  transform: translate(-50%, -50%);
  transition: width 360ms var(--studio-ease), background 220ms, color 220ms;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.studio-hotspot::before { content: "+"; font-size: 17px; font-weight: 300; }
.studio-hotspot__label {
  position: absolute;
  left: 42px;
  width: max-content;
  padding: 6px 9px;
  border: 1px solid rgb(255 255 255 / .62);
  background: rgb(251 250 247 / .78);
  color: var(--studio-ink);
  font-size: 9px;
  opacity: 0;
  transform: translateX(-5px);
  transition: opacity 220ms, transform 320ms var(--studio-ease);
}
.studio-hotspot:hover, .studio-hotspot.is-active { background: var(--studio-ink); color: #fff; }
.studio-hotspot:hover .studio-hotspot__label,
.studio-hotspot.is-active .studio-hotspot__label { opacity: 1; transform: translateX(0); }

.studio-masthead {
  position: absolute;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: calc(25px + env(safe-area-inset-top)) var(--studio-gutter) 18px;
  border-bottom: 1px solid var(--studio-line);
}
.studio-brand {
  display: inline-flex;
  width: max-content;
  min-height: 44px;
  align-items: center;
  color: var(--studio-ink);
  text-decoration: none;
}
.studio-brand__mark { display: block; width: 144px; height: auto; overflow: visible; }
.studio-brand__mark text {
  fill: currentColor;
  font-family: "Lora", Georgia, serif;
  font-weight: 500;
  text-rendering: geometricPrecision;
}
.studio-brand__mark .brand__v { font-size: 50px; letter-spacing: -.055em; }
.studio-brand__mark .brand__name { font-size: 45px; font-style: italic; letter-spacing: -.065em; }
.studio-brand__mark .brand__dash {
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}
.studio-header-middle {
  color: var(--studio-muted);
  font-size: 10px;
  letter-spacing: .13em;
}
.studio-header-actions { display: flex; justify-self: end; align-items: center; gap: 6px; }
.studio-admin, .studio-back {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 15px;
  border: 1px solid transparent;
  color: var(--studio-ink);
  font-size: 11px;
  text-decoration: none;
  transition: color 220ms, background 220ms, border-color 220ms;
}
.studio-admin { color: var(--studio-muted); }
.studio-back { border-color: var(--studio-line); }
.studio-admin:hover, .studio-back:hover {
  border-color: var(--studio-ink);
  background: var(--studio-ink);
  color: #fff;
}

.studio-intro {
  position: absolute;
  z-index: 5;
  top: clamp(145px, 18vh, 190px);
  left: var(--studio-gutter);
  width: min(48vw, 680px);
  pointer-events: none;
  transition: opacity 400ms, filter 560ms var(--studio-ease), transform 560ms var(--studio-ease);
}
.studio-intro.is-muted { opacity: .24; filter: blur(4px); transform: translateY(-6px); }
.studio-kicker, .studio-dock__index {
  margin: 0 0 18px;
  color: var(--studio-accent);
  font-size: 10px;
  letter-spacing: .16em;
}
.studio-intro h1 {
  max-width: 650px;
  margin: 0;
  color: var(--studio-ink);
  font-family: "Lora", Georgia, serif;
  font-size: clamp(54px, 6vw, 92px);
  font-weight: 400;
  line-height: .92;
  letter-spacing: -.06em;
  text-wrap: balance;
}
.studio-intro h1 em {
  display: block;
  margin-left: clamp(22px, 4vw, 70px);
  color: var(--studio-accent);
  font-weight: 400;
}
.studio-intro__note {
  width: min(390px, 100%);
  margin: 24px 0 0;
  color: var(--studio-muted);
  font-size: 12px;
  line-height: 1.75;
}

.studio-console {
  position: absolute;
  z-index: 9;
  bottom: 126px;
  left: var(--studio-gutter);
  width: min(720px, calc(100vw - (2 * var(--studio-gutter))));
}
.studio-console__head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 14px;
}
.studio-console__eyebrow {
  margin: 0 0 4px;
  color: var(--studio-accent);
  font-size: 9px;
  letter-spacing: .13em;
}
.studio-console__head h2 {
  margin: 0;
  font-family: "Lora", Georgia, serif;
  font-size: 24px;
  font-weight: 400;
  letter-spacing: -.04em;
}
.studio-console__badge { color: var(--studio-muted); font-size: 9px; letter-spacing: .08em; }
.studio-spec-grid {
  display: grid;
  grid-template-columns: .75fr .7fr 1.35fr;
  border-top: 1px solid var(--studio-line);
}
.studio-spec-grid label {
  display: grid;
  gap: 6px;
  padding: 11px 14px 10px 0;
  color: var(--studio-faint);
  font-size: 9px;
}
.studio-spec-grid label + label { padding-left: 14px; border-left: 1px solid var(--studio-line); }
.studio-spec-grid select {
  width: 100%;
  min-height: 28px;
  border: 0;
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--studio-ink);
  font-size: 11px;
}
.studio-frame-plan {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--studio-line);
  border-bottom: 1px solid var(--studio-line);
}
.studio-frame-plan__header { display: none; }
.studio-frame-step {
  position: relative;
  display: grid;
  grid-template-columns: 26px 1fr;
  align-items: center;
  gap: 9px;
  min-width: 0;
  min-height: 66px;
  padding: 8px 10px;
  border: 0;
  border-right: 1px solid var(--studio-line);
  border-radius: 0;
  background: transparent;
  color: var(--studio-ink);
  text-align: left;
  transition: color 220ms, background 300ms var(--studio-ease), transform 180ms;
}
.studio-frame-step:last-child { border-right: 0; }
.studio-frame-step::after {
  content: "";
  position: absolute;
  right: 9px;
  bottom: -1px;
  left: 9px;
  height: 2px;
  background: var(--studio-accent);
  opacity: 0;
  transform: scaleX(.2);
  transition: opacity 220ms, transform 360ms var(--studio-ease);
}
.studio-frame-step:hover { background: rgb(255 255 255 / .38); }
.studio-frame-step:active { transform: translateY(1px); }
.studio-frame-step.is-active { background: rgb(255 255 255 / .55); }
.studio-frame-step.is-active::after { opacity: 1; transform: scaleX(1); }
.studio-frame-step b {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border: 1px solid var(--studio-line);
  border-radius: 50%;
  color: var(--studio-accent);
  font-size: 9px;
  font-weight: 500;
}
.studio-frame-step span { display: grid; min-width: 0; gap: 3px; }
.studio-frame-step strong {
  overflow: hidden;
  font-size: 10px;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.studio-frame-step small {
  overflow: hidden;
  color: var(--studio-faint);
  font-size: 7px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.studio-console__hint { margin: 10px 0 0; color: var(--studio-faint); font-size: 9px; line-height: 1.5; }

.studio-rail {
  position: absolute;
  z-index: 11;
  right: var(--studio-gutter);
  bottom: calc(22px + env(safe-area-inset-bottom));
  left: var(--studio-gutter);
  display: flex;
  min-height: 78px;
  align-items: center;
  gap: 10px;
  padding: 10px 10px 10px 20px;
  border: 1px solid var(--studio-line);
  border-radius: 3px;
  background: rgb(251 250 247 / .9);
  box-shadow: 0 18px 54px rgb(74 52 35 / .12);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}
.studio-rail__copy { min-width: 0; flex: 1; }
.studio-rail__status {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--studio-muted);
  font-size: 9px;
}
.studio-rail__status i { width: 5px; height: 5px; border-radius: 50%; background: var(--studio-accent); }
.studio-rail__copy p {
  overflow: hidden;
  margin: 7px 0 0;
  color: var(--studio-ink);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.studio-upload {
  display: flex;
  min-width: 148px;
  min-height: 48px;
  align-items: center;
  gap: 9px;
  padding: 0 12px;
  border-left: 1px solid var(--studio-line);
  cursor: pointer;
}
.studio-upload__icon { color: var(--studio-accent); font-family: "Lora", serif; font-size: 24px; }
.studio-upload strong, .studio-upload small { display: block; }
.studio-upload strong { font-size: 9px; font-weight: 500; }
.studio-upload small {
  overflow: hidden;
  max-width: 110px;
  margin-top: 3px;
  color: var(--studio-faint);
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.studio-upload input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.studio-output {
  display: grid;
  min-width: 142px;
  gap: 3px;
  padding-left: 12px;
  border-left: 1px solid var(--studio-line);
  color: var(--studio-faint);
  font-size: 8px;
}
.studio-output select {
  width: 100%;
  min-height: 30px;
  border: 0;
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: var(--studio-ink);
  font-size: 10px;
}
.studio-submit {
  display: inline-flex;
  min-width: 174px;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  padding: 0 18px;
  border: 1px solid var(--studio-ink);
  border-radius: 2px;
  background: var(--studio-ink);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  transition: background 220ms, color 220ms, transform 180ms;
}
.studio-submit span { font-size: 17px; }
.studio-submit:hover { background: var(--studio-accent); border-color: var(--studio-accent); }
.studio-submit:active { transform: translateY(1px); }
.studio-submit:disabled { cursor: wait; opacity: .58; }

.studio-dock {
  position: absolute;
  z-index: 14;
  right: var(--studio-gutter);
  bottom: 124px;
  width: min(360px, calc(100vw - (2 * var(--studio-gutter))));
  max-height: min(490px, calc(100dvh - 230px));
  overflow: auto;
  padding: 26px;
  border: 1px solid var(--studio-line);
  border-radius: 3px;
  background: rgb(251 250 247 / .96);
  box-shadow: 0 28px 90px rgb(73 51 35 / .2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px);
  transition: opacity 220ms, transform 420ms var(--studio-ease);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  scrollbar-width: thin;
}
.studio-dock.is-open { opacity: 1; pointer-events: auto; transform: translateY(0); }
.studio-dock__header { display: flex; justify-content: space-between; gap: 18px; }
.studio-dock__index { margin-bottom: 8px; color: var(--studio-accent); }
.studio-dock h2 {
  margin: 0;
  font-family: "Lora", Georgia, serif;
  font-size: 36px;
  font-weight: 400;
  letter-spacing: -.05em;
}
.studio-dock__description { margin: 18px 0 22px; color: var(--studio-muted); font-size: 11px; line-height: 1.7; }
.studio-dock__content { display: grid; gap: 0; border-top: 1px solid var(--studio-line); }
.studio-dock__content--split { gap: 20px; border-top: 0; }
.studio-dock__group { display: grid; gap: 0; }
.studio-dock__group-label {
  margin: 0;
  padding: 10px 0;
  border-top: 1px solid var(--studio-line);
  color: var(--studio-accent);
  font-size: 9px;
  letter-spacing: .12em;
}
.studio-option {
  display: flex;
  width: 100%;
  min-height: 52px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 4px;
  border: 0;
  border-bottom: 1px solid var(--studio-line);
  border-radius: 0;
  background: transparent;
  color: var(--studio-ink);
  text-align: left;
  transition: color 200ms, padding 320ms var(--studio-ease);
}
.studio-option:hover, .studio-option.is-selected { color: var(--studio-accent); padding-left: 10px; }
.studio-option__name { display: block; font-size: 11px; line-height: 1.35; }
.studio-option__meta { display: block; margin-top: 4px; color: var(--studio-faint); font-size: 9px; line-height: 1.45; }
.studio-option__check { font-size: 13px; opacity: 0; }
.studio-option.is-selected .studio-option__check { opacity: 1; }
.studio-option--swatch { align-items: center; }
.studio-option__swatch {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  border: 1px solid var(--studio-line);
  border-radius: 50%;
}
.studio-dock__hint { margin-top: 16px; color: var(--studio-faint); font-size: 9px; line-height: 1.5; }
.icon-button {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  padding: 0;
  border: 1px solid var(--studio-line);
  border-radius: 50%;
  background: transparent;
  color: inherit;
  font-size: 22px;
  font-weight: 300;
  line-height: 1;
  transition: color 200ms, background 200ms;
}
.icon-button:hover { background: var(--studio-ink); color: #fff; }

.studio-footer { display: none; }

.studio-result {
  --result-paper: #f3efe7;
  --result-paper-deep: #e8dfd2;
  --result-ink: #182b35;
  --result-muted: #657177;
  --result-faint: #858d8c;
  --result-line: rgb(24 43 53 / .16);
  --result-accent: #a66d4f;
  position: fixed;
  z-index: 40;
  inset: 0;
  overflow: auto;
  padding: clamp(28px, 4.6vw, 70px) var(--studio-gutter);
  background:
    radial-gradient(70% 90% at 8% 4%, rgb(255 255 255 / .88), transparent 64%),
    radial-gradient(52% 74% at 92% 92%, rgb(205 174 143 / .25), transparent 68%),
    linear-gradient(145deg, var(--result-paper), #f8f5ef 52%, var(--result-paper-deep));
  color: var(--result-ink);
  animation: result-in 420ms var(--studio-ease) both;
}
@keyframes result-in { from { opacity: 0; } to { opacity: 1; } }
.studio-result__backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .26;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='grain'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23grain)' opacity='.16'/%3E%3C/svg%3E");
}
.studio-result__header, .studio-result__grid {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin-right: auto;
  margin-left: auto;
}
.studio-result__header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--result-line);
}
.studio-result__header h2 {
  max-width: 900px;
  margin: 0;
  color: var(--result-ink);
  font-family: "Lora", Georgia, serif;
  font-size: clamp(42px, 5.7vw, 82px);
  font-weight: 400;
  line-height: .98;
  letter-spacing: -.06em;
  text-wrap: balance;
}
.studio-result .studio-kicker { color: var(--result-accent); }
.studio-result .icon-button--light { border-color: rgb(24 43 53 / .28); color: var(--result-ink); }
.studio-result .icon-button--light:hover { background: var(--result-ink); color: #fff; }
.studio-result__grid {
  display: grid;
  grid-template-columns: minmax(360px, 1.08fr) minmax(300px, .92fr);
  gap: clamp(38px, 7vw, 108px);
  align-items: center;
  padding-top: clamp(42px, 7vh, 78px);
}
.studio-result__visual {
  position: relative;
  display: grid;
  width: min(100%, 680px);
  aspect-ratio: 16 / 9;
  place-items: center;
  justify-self: center;
  overflow: hidden;
  border: 1px solid rgb(24 43 53 / .2);
  border-radius: 24px;
  background: #fbfaf7;
  box-shadow: 0 28px 90px rgb(73 52 35 / .16), inset 0 1px 0 rgb(255 255 255 / .9);
}
.result-orb {
  width: 40%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(135deg, #ead5c4 20%, #b9beb9 66%, #52666a);
  box-shadow: 22px 18px 0 rgb(255 255 255 / .68);
  animation: studio-breathe 5s ease-in-out infinite;
}
.result-orb__label {
  position: absolute;
  margin-top: 44%;
  color: var(--result-faint);
  font-size: 9px;
  letter-spacing: .18em;
}
.studio-result__images {
  position: absolute;
  inset: 3px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 100%;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}
.studio-result__images img {
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
  scroll-snap-align: start;
  background: #ebe5dc;
}
.studio-result__video {
  position: absolute;
  inset: 3px;
  width: calc(100% - 6px);
  height: calc(100% - 6px);
  object-fit: contain;
  background: #e8e1d7;
}
.studio-result__visual.has-images .result-orb,
.studio-result__visual.has-images .result-orb__label,
.studio-result__visual.has-video .result-orb,
.studio-result__visual.has-video .result-orb__label,
.studio-result__visual.has-video .studio-result__images { display: none; }
.studio-result__visual.is-landscape { width: min(100%, 760px); aspect-ratio: 16 / 9; }
.studio-result__copy > p {
  max-width: 520px;
  margin: 0 0 34px;
  color: var(--result-muted);
  font-size: 13px;
  line-height: 1.75;
}
.result-story { max-width: 560px; padding: 18px 0; border-top: 1px solid var(--result-line); }
.result-story > span { color: var(--result-accent); font-size: 9px; letter-spacing: .14em; }
.result-story p { margin: 9px 0 0; color: var(--result-ink); font-size: 13px; line-height: 1.7; }
.result-video-branches { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin-top: 20px; border: 1px solid var(--result-line); }
.result-video-branches button {
  min-height: 38px;
  border: 0;
  border-right: 1px solid var(--result-line);
  background: transparent;
  color: var(--result-muted);
  font-size: 9px;
}
.result-video-branches button:last-child { border-right: 0; }
.result-video-branches button:hover, .result-video-branches button.is-active {
  background: var(--result-ink);
  color: #fff;
}
.result-download {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  margin-top: 22px;
  padding: 13px 18px;
  border: 1px solid var(--result-ink);
  border-radius: 2px;
  background: var(--result-ink);
  color: #fff;
  font-size: 11px;
  text-decoration: none;
}
.result-download:hover { border-color: var(--result-accent); background: var(--result-accent); }
.studio-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (max-width: 1040px) {
  .studio-frame { width: 62vw; }
  .studio-hotspots { width: 62vw; }
  .studio-intro { width: 50vw; }
  .studio-console { width: min(650px, calc(100vw - (2 * var(--studio-gutter)))); }
  .studio-frame-step { grid-template-columns: 1fr; place-items: center; gap: 3px; text-align: center; }
  .studio-frame-step small { display: none; }
}

@media (max-width: 720px) {
  :root { --studio-gutter: 16px; }
  .studio-experience { overflow: visible; }
  .studio-stage { min-height: 1080px; overflow: hidden; }
  .studio-masthead {
    position: absolute;
    grid-template-columns: 1fr auto;
    padding-top: calc(17px + env(safe-area-inset-top));
  }
  .studio-brand__mark { width: 126px; }
  .studio-header-middle, .studio-admin { display: none; }
  .studio-back { min-height: 36px; padding: 0 12px; font-size: 9px; }
  .studio-frame {
    top: 82px;
    right: 16px;
    bottom: auto;
    left: 16px;
    width: auto;
    height: 322px;
  }
  .studio-frame::before { background: linear-gradient(180deg, transparent 46%, rgb(24 30 31 / .25)); }
  .studio-frame::after { right: 12px; bottom: 11px; font-size: 7px; }
  .studio-hotspots {
    top: 82px;
    right: 16px;
    bottom: auto;
    left: 16px;
    width: auto;
    height: 322px;
  }
  .studio-hotspot { width: 30px; height: 30px; }
  .studio-hotspot__label { display: none; }
  .studio-intro {
    top: 438px;
    left: 16px;
    width: calc(100% - 32px);
  }
  .studio-intro h1 { font-size: clamp(46px, 14.2vw, 64px); line-height: .94; }
  .studio-intro h1 em { margin-left: 22px; }
  .studio-intro__note { margin-top: 18px; font-size: 11px; }
  .studio-console {
    top: 680px;
    bottom: auto;
    left: 16px;
    width: calc(100% - 32px);
  }
  .studio-console__head { margin-bottom: 10px; }
  .studio-console__head h2 { font-size: 22px; }
  .studio-console__badge { display: none; }
  .studio-spec-grid { grid-template-columns: .78fr .7fr 1.52fr; }
  .studio-spec-grid label { padding: 9px 7px 8px 0; font-size: 8px; }
  .studio-spec-grid label + label { padding-left: 7px; }
  .studio-spec-grid select { font-size: 9px; }
  .studio-frame-plan { overflow-x: auto; scroll-snap-type: x mandatory; }
  .studio-frame-step {
    min-width: 82px;
    min-height: 62px;
    scroll-snap-align: start;
  }
  .studio-frame-step strong { font-size: 9px; }
  .studio-rail {
    top: 865px;
    right: 16px;
    bottom: auto;
    left: 16px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 190px;
    gap: 6px;
    padding: 12px;
  }
  .studio-rail__copy { grid-column: 1 / -1; padding-bottom: 10px; border-bottom: 1px solid var(--studio-line); }
  .studio-rail__copy p { font-size: 9px; }
  .studio-upload { min-width: 0; min-height: 48px; padding: 0 8px; border-left: 0; }
  .studio-output { min-width: 0; padding-left: 8px; }
  .studio-submit { grid-column: 1 / -1; width: 100%; min-height: 48px; }
  .studio-dock {
    position: fixed;
    right: 12px;
    bottom: 12px;
    left: 12px;
    width: auto;
    max-height: min(70dvh, 560px);
    padding: 22px;
  }
  .studio-dock h2 { font-size: 32px; }
  .studio-result { padding: 22px 16px 34px; }
  .studio-result__header { padding-bottom: 22px; }
  .studio-result__header h2 { font-size: clamp(36px, 11.2vw, 52px); }
  .studio-result__grid { grid-template-columns: 1fr; gap: 28px; padding-top: 28px; }
  .studio-result__visual { width: 100%; border-radius: 16px; }
  .studio-result__copy > p { margin-bottom: 22px; font-size: 11px; }
  .result-story { padding: 14px 0; }
  .result-story p { font-size: 11px; }
  .result-video-branches { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .result-video-branches button:nth-child(2) { border-right: 0; }
}

@media (max-height: 760px) and (min-width: 721px) {
  .studio-intro { top: 125px; }
  .studio-intro h1 { font-size: clamp(46px, 5.5vw, 72px); }
  .studio-intro__note { margin-top: 14px; }
  .studio-frame { top: 88px; bottom: 164px; }
  .studio-hotspots { inset: 88px var(--studio-gutter) 164px auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition-duration: .01ms !important;
  }
}

/* Three-layer workbench -------------------------------------------------- */
.studio-experience { overflow: visible; }
.studio-masthead {
  position: sticky;
  top: 0;
  background: rgb(243 239 231 / .9);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
.studio-header-middle {
  display: flex;
  align-items: center;
  gap: 26px;
}
.studio-header-middle a {
  position: relative;
  padding: 9px 0;
  color: var(--studio-muted);
  font-size: 10px;
  letter-spacing: .1em;
  text-decoration: none;
}
.studio-header-middle a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--studio-accent);
  opacity: 0;
  transform: scaleX(.3);
  transition: opacity 180ms, transform 300ms var(--studio-ease);
}
.studio-header-middle a:hover,
.studio-header-middle a.is-active { color: var(--studio-ink); }
.studio-header-middle a.is-active::after { opacity: 1; transform: scaleX(1); }

.studio-stage {
  min-height: auto;
  overflow: visible;
  padding: 26px var(--studio-gutter) 44px;
}
.studio-workbench {
  display: grid;
  grid-template-columns: minmax(210px, 248px) minmax(480px, 1fr) minmax(260px, 318px);
  max-width: 1680px;
  min-height: calc(100dvh - 130px);
  margin: 0 auto;
  border: 1px solid var(--studio-line);
  background: rgb(251 250 247 / .52);
  box-shadow: 0 28px 90px rgb(74 52 35 / .1);
}
.studio-toolbox,
.studio-insights {
  min-width: 0;
  background: rgb(247 244 238 / .66);
}
.studio-toolbox {
  position: relative;
  border-right: 1px solid var(--studio-line);
}
.studio-intro {
  position: static;
  width: auto;
  padding: 26px 22px 24px;
  pointer-events: auto;
}
.studio-intro.is-muted { opacity: 1; filter: none; transform: none; }
.studio-intro .studio-kicker { margin-bottom: 12px; }
.studio-intro h1 {
  font-size: clamp(31px, 2.6vw, 48px);
  line-height: .96;
}
.studio-intro h1 em { margin-left: 14px; }
.studio-intro__note {
  margin-top: 16px;
  font-size: 10px;
  line-height: 1.65;
}
.studio-quick-start {
  margin: 0 16px 16px;
  padding: 14px;
  border: 1px solid var(--studio-line);
  background: var(--studio-paper-bright);
}
.studio-quick-start__head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--studio-ink);
  font-size: 9px;
}
.studio-quick-start__head small { color: var(--studio-accent); }
.studio-quick-start__options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
}
.studio-quick-start__options button {
  min-height: 34px;
  padding: 6px;
  border: 1px solid var(--studio-line);
  border-radius: 0;
  background: transparent;
  color: var(--studio-muted);
  font-size: 8px;
  transition: background 180ms, color 180ms, transform 160ms;
}
.studio-quick-start__options button:hover,
.studio-quick-start__options button.is-active {
  background: var(--studio-ink);
  color: #fff;
}
.studio-quick-start__options button:active { transform: translateY(1px); }

.studio-tool-list {
  display: grid;
  border-top: 1px solid var(--studio-line);
}
.studio-tool-list button {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  min-height: 58px;
  align-items: center;
  gap: 7px 10px;
  padding: 9px 20px;
  border: 0;
  border-bottom: 1px solid var(--studio-line);
  border-radius: 0;
  background: transparent;
  text-align: left;
  transition: background 200ms, padding 300ms var(--studio-ease);
}
.studio-tool-list button:hover,
.studio-tool-list button[aria-pressed="true"] {
  padding-left: 25px;
  background: rgb(255 255 255 / .62);
}
.studio-tool-list button > span {
  grid-row: 1 / span 2;
  color: var(--studio-accent);
  font-size: 8px;
}
.studio-tool-list strong { font-size: 10px; font-weight: 500; }
.studio-tool-list small {
  overflow: hidden;
  color: var(--studio-faint);
  font-size: 8px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.studio-dock {
  position: absolute;
  z-index: 18;
  top: 0;
  right: auto;
  bottom: 0;
  left: 100%;
  width: min(340px, 80vw);
  max-height: none;
  padding: 24px;
  border-radius: 0;
  box-shadow: 22px 0 70px rgb(73 51 35 / .16);
  transform: translateX(-12px);
}
.studio-dock.is-open { transform: translateX(0); }
.studio-dock h2 { font-size: 32px; }

.studio-preview {
  display: grid;
  min-width: 0;
  align-content: start;
  background: var(--studio-paper-bright);
}
.studio-preview__top {
  display: flex;
  min-height: 92px;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 22px;
  border-bottom: 1px solid var(--studio-line);
}
.studio-preview__top .studio-kicker { margin: 0 0 6px; }
.studio-preview__top h2 {
  margin: 0;
  font-family: "Lora", Georgia, serif;
  font-size: 30px;
  font-weight: 400;
  letter-spacing: -.05em;
}
.studio-preview .studio-spec-grid {
  grid-template-columns: repeat(3, minmax(82px, 1fr));
  width: min(420px, 58%);
}
.studio-preview .studio-spec-grid label { padding: 8px 10px; }
.studio-preview .studio-spec-grid label:first-child { padding-left: 0; }
.studio-plane {
  position: relative;
  inset: auto;
  min-height: 0;
  padding: 22px;
}
.studio-frame {
  position: relative;
  top: auto;
  right: auto;
  bottom: auto;
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 310px;
}
.studio-hotspots {
  inset: 22px;
  width: auto;
  height: auto;
}
.studio-preview__empty {
  position: absolute;
  z-index: 5;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 12px;
  padding: 30px;
  background:
    radial-gradient(circle at 50% 38%, rgb(223 195 173 / .72), transparent 31%),
    linear-gradient(145deg, rgb(250 248 244 / .94), rgb(230 224 214 / .92));
  color: var(--studio-ink);
  text-align: center;
  transition: opacity 340ms, visibility 340ms;
}
.studio-preview__empty.is-ready { opacity: 0; visibility: hidden; }
.studio-preview__empty > span { color: var(--studio-accent); font-size: 9px; letter-spacing: .14em; }
.studio-preview__empty strong {
  font-family: "Lora", Georgia, serif;
  font-size: clamp(25px, 3vw, 44px);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -.05em;
}
.studio-preview__empty small { color: var(--studio-muted); font-size: 9px; }

.studio-locks {
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  border-top: 1px solid var(--studio-line);
}
.studio-locks > div:first-child span,
.studio-locks > div:first-child strong { display: block; }
.studio-locks > div:first-child span { color: var(--studio-accent); font-size: 8px; letter-spacing: .1em; }
.studio-locks > div:first-child strong { margin-top: 4px; font-size: 9px; font-weight: 500; }
.studio-locks__items { display: flex; flex-wrap: wrap; gap: 5px; }
.studio-locks__items label { cursor: pointer; }
.studio-locks__items input { position: absolute; opacity: 0; }
.studio-locks__items span {
  display: inline-flex;
  min-height: 27px;
  align-items: center;
  padding: 0 8px;
  border: 1px solid var(--studio-line);
  color: var(--studio-faint);
  font-size: 7px;
}
.studio-locks__items input:checked + span {
  border-color: var(--studio-ink);
  background: var(--studio-ink);
  color: #fff;
}
.studio-preview .studio-frame-plan { margin: 0 22px; }
.studio-preview .studio-rail {
  position: static;
  margin: 16px 22px 22px;
  min-height: 72px;
  box-shadow: none;
}

.studio-insights { border-left: 1px solid var(--studio-line); }
.studio-insight { padding: 22px; border-bottom: 1px solid var(--studio-line); }
.studio-insight__head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 18px;
  color: var(--studio-accent);
  font-size: 8px;
  letter-spacing: .12em;
}
.studio-insight h2 {
  margin: 0 0 20px;
  font-family: "Lora", Georgia, serif;
  font-size: 25px;
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -.045em;
}
.studio-insight dl,
.studio-insight dd { margin: 0; }
.studio-insight dl > div { padding: 11px 0; border-top: 1px solid var(--studio-line); }
.studio-insight dt,
.studio-insight div > span {
  color: var(--studio-faint);
  font-size: 8px;
}
.studio-insight dd {
  margin-top: 5px;
  color: var(--studio-muted);
  font-size: 9px;
  line-height: 1.6;
}
.studio-check ul { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.studio-check li { color: var(--studio-muted); font-size: 9px; line-height: 1.45; }
.studio-check li.is-ok { color: #42634f; }
.studio-check p {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--studio-line);
  color: var(--studio-accent);
  font-size: 9px;
  line-height: 1.55;
}
.studio-tips > div:not(.studio-insight__head) { display: grid; gap: 4px; padding: 9px 0; border-top: 1px solid var(--studio-line); }
.studio-tips strong { color: var(--studio-muted); font-size: 9px; font-weight: 400; line-height: 1.5; }

.studio-variants {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr) auto;
  max-width: 1680px;
  margin: 18px auto 0;
  border: 1px solid var(--studio-line);
  background: rgb(251 250 247 / .68);
}
.studio-variants__title { display: grid; align-content: center; gap: 5px; padding: 16px 18px; border-right: 1px solid var(--studio-line); }
.studio-variants__title span { color: var(--studio-accent); font-size: 8px; letter-spacing: .1em; }
.studio-variants__title strong { font-family: "Lora", Georgia, serif; font-size: 14px; font-weight: 400; }
.studio-variants__strip { display: grid; grid-template-columns: repeat(4, minmax(120px, 1fr)); overflow-x: auto; }
.studio-variants__strip button {
  display: grid;
  min-height: 74px;
  align-content: center;
  gap: 4px;
  padding: 10px 14px;
  border: 0;
  border-right: 1px solid var(--studio-line);
  border-radius: 0;
  background: transparent;
  text-align: left;
}
.studio-variants__strip button:hover,
.studio-variants__strip button.is-active { background: rgb(255 255 255 / .7); }
.studio-variants__strip span { color: var(--studio-accent); font-size: 8px; }
.studio-variants__strip strong { font-size: 9px; font-weight: 500; }
.studio-variants__strip small { color: var(--studio-faint); font-size: 8px; }
.studio-variants__actions { display: flex; align-items: stretch; }
.studio-variants__actions button {
  min-width: 92px;
  padding: 0 14px;
  border: 0;
  border-left: 1px solid var(--studio-line);
  border-radius: 0;
  background: transparent;
  font-size: 9px;
}
.studio-variants__actions button:hover:not(:disabled) { background: var(--studio-ink); color: #fff; }
.studio-variants__actions button:disabled { opacity: .38; cursor: not-allowed; }

@media (max-width: 1180px) {
  .studio-workbench { grid-template-columns: 220px minmax(430px, 1fr); }
  .studio-insights {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: 1.1fr .9fr .9fr;
    border-top: 1px solid var(--studio-line);
    border-left: 0;
  }
  .studio-insight { border-right: 1px solid var(--studio-line); border-bottom: 0; }
  .studio-insight:last-child { border-right: 0; }
  .studio-variants { grid-template-columns: 170px minmax(0, 1fr); }
  .studio-variants__actions { grid-column: 1 / -1; justify-content: flex-end; border-top: 1px solid var(--studio-line); }
  .studio-variants__actions button { min-height: 42px; }
}

@media (max-width: 760px) {
  .studio-masthead { position: sticky; }
  .studio-header-middle { display: none; }
  .studio-stage { min-height: auto; padding: 14px 12px 30px; }
  .studio-workbench { display: flex; min-height: 0; flex-direction: column; }
  .studio-preview { order: 1; }
  .studio-toolbox { order: 2; border-top: 1px solid var(--studio-line); border-right: 0; }
  .studio-insights { order: 3; grid-template-columns: 1fr; border-top: 1px solid var(--studio-line); }
  .studio-insight { border-right: 0; border-bottom: 1px solid var(--studio-line); }
  .studio-preview__top {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    width: 100%;
    min-width: 0;
    min-height: 0;
    align-items: start;
    overflow: hidden;
    padding: 18px;
  }
  .studio-preview .studio-spec-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: 100%;
    min-width: 0;
  }
  .studio-preview .studio-spec-grid label,
  .studio-preview .studio-spec-grid select { min-width: 0; max-width: 100%; }
  .studio-plane { width: 100%; min-width: 0; padding: 12px; }
  .studio-frame { top: auto; right: auto; left: auto; width: 100%; height: auto; min-height: 220px; }
  .studio-hotspots { top: 12px; right: 12px; bottom: 12px; left: 12px; width: auto; height: auto; }
  .studio-preview__empty { padding: 20px; }
  .studio-preview__empty strong { font-size: 27px; }
  .studio-locks { grid-template-columns: 1fr; padding: 14px 16px; }
  .studio-preview .studio-frame-plan { margin: 0 12px; }
  .studio-frame-step { min-width: 78px; }
  .studio-preview .studio-rail {
    position: static;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
    margin: 14px 12px 18px;
  }
  .studio-intro { top: auto; left: auto; width: auto; }
  .studio-quick-start__options { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .studio-dock {
    position: fixed;
    top: auto;
    right: 12px;
    bottom: 12px;
    left: 12px;
    width: auto;
    max-height: 72dvh;
    border-radius: 2px;
    transform: translateY(16px);
  }
  .studio-dock.is-open { transform: translateY(0); }
  .studio-variants { grid-template-columns: 1fr; }
  .studio-variants__title { border-right: 0; border-bottom: 1px solid var(--studio-line); }
  .studio-variants__strip { grid-template-columns: repeat(4, minmax(118px, 1fr)); }
  .studio-variants__actions { grid-column: auto; justify-content: stretch; }
  .studio-variants__actions button { flex: 1; }
}