:root {
  --cream: #fff6df;
  --ink: #241d29;
  --pink: #ff4f91;
  --orange: #ff7d3b;
  --yellow: #ffd84c;
  --blue: #66b6ff;
  --green: #72db93;
  --purple: #8d69ff;
  --line: #241d29;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 18%, rgba(255, 79, 145, .13) 0 4px, transparent 4.5px),
    radial-gradient(circle at 92% 10%, rgba(102, 182, 255, .18) 0 5px, transparent 5.5px),
    var(--cream);
  background-size: 32px 32px, 44px 44px, auto;
  font-family: "Noto Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; }
button, label { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }

.memory-header {
  position: sticky;
  z-index: 20;
  top: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 72px;
  padding: 12px 4vw;
  background: rgba(255, 246, 223, .9);
  border-bottom: 2px solid var(--line);
  backdrop-filter: blur(12px);
}
.memory-header > p { justify-self: end; margin: 0; font-size: 11px; font-weight: 700; }
.back-link { font-family: "DM Mono", monospace; font-size: 12px; font-weight: 700; }
.memory-brand { display: flex; align-items: center; gap: 10px; font-family: "ZCOOL QingKe HuangYou", sans-serif; font-size: 25px; }
.brand-flower { display: grid; width: 38px; aspect-ratio: 1; background: var(--pink); border: 2px solid var(--line); border-radius: 50%; place-items: center; box-shadow: 3px 3px 0 var(--line); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr);
  gap: 7vw;
  align-items: center;
  min-height: 650px;
  padding: 76px 7vw 94px;
  overflow: hidden;
}
.kicker { margin: 0 0 18px; font-family: "DM Mono", monospace; font-size: 11px; font-weight: 700; letter-spacing: .13em; }
.hero h1 { margin: 0; font-family: "ZCOOL QingKe HuangYou", "Noto Sans SC", sans-serif; font-size: clamp(58px, 7.2vw, 112px); font-weight: 400; letter-spacing: -.04em; line-height: .97; }
.hero h1 em { color: var(--pink); font-style: normal; text-decoration: underline; text-decoration-color: var(--yellow); text-decoration-thickness: 12px; text-underline-offset: -5px; text-decoration-skip-ink: none; }
.hero-note { max-width: 590px; margin: 30px 0; font-size: 15px; line-height: 1.9; }
.upload-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.upload-hint { display: flex; align-items: center; gap: 7px; margin: 17px 0 0; color: #655d68; font-size: 11px; font-weight: 700; }
.upload-hint span { display: grid; width: 21px; aspect-ratio: 1; color: var(--ink); background: var(--yellow); border: 1px solid var(--line); border-radius: 50%; place-items: center; }
.upload-button { display: inline-flex; align-items: center; gap: 22px; padding: 16px 22px; color: #fff; background: var(--ink); border: 2px solid var(--ink); border-radius: 999px; box-shadow: 6px 6px 0 var(--pink); cursor: pointer; transition: transform 150ms ease, box-shadow 150ms ease; }
.upload-button:hover { box-shadow: 3px 3px 0 var(--pink); transform: translate(3px, 3px); }
.upload-button span { font-weight: 800; }
.upload-button small { opacity: .62; font: 9px "DM Mono", monospace; }
.folder-button { padding: 10px 2px; border-bottom: 2px solid var(--ink); cursor: pointer; font-size: 12px; font-weight: 800; }
.folder-button:hover { color: var(--pink); border-color: var(--pink); }

.hero-stack { position: relative; height: 470px; }
.hero-card { position: absolute; display: flex; align-items: flex-end; justify-content: space-between; width: 290px; aspect-ratio: 4/5; padding: 20px; border: 3px solid var(--line); box-shadow: 11px 11px 0 var(--line); font: 18px "DM Mono", monospace; }
.hero-card::before { position: absolute; inset: 24px 24px 78px; background: rgba(255,255,255,.45); border: 2px solid var(--line); content: ""; }
.hero-card i { font-style: normal; font-size: 36px; }
.card-pink { top: 10px; left: 2%; background: var(--pink); transform: rotate(-9deg); }
.card-blue { right: 1%; bottom: 4px; background: var(--blue); transform: rotate(8deg); }
.card-yellow { z-index: 2; top: 90px; left: 26%; background: var(--yellow); transform: rotate(1deg); }
.card-yellow b { position: absolute; z-index: 1; top: 22%; left: 50%; font-size: 130px; font-family: serif; transform: translateX(-50%); }

.studio { padding: 74px 4vw 96px; background: #fffcf4; border-top: 3px solid var(--line); }
.studio-heading { display: flex; align-items: end; justify-content: space-between; max-width: 1500px; margin: 0 auto 34px; }
.studio-heading h2 { margin: 0; font: 52px "ZCOOL QingKe HuangYou", sans-serif; }
.studio-heading > p { margin: 0 0 5px; padding: 7px 12px; background: var(--green); border: 2px solid var(--line); border-radius: 99px; font-size: 11px; font-weight: 800; }
.studio-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 22px; max-width: 1500px; margin: auto; }
.preview-panel, .controls-panel, .timeline-panel { background: var(--cream); border: 2px solid var(--line); box-shadow: 7px 7px 0 var(--line); }
.preview-panel { padding: 14px; }
.canvas-wrap { position: relative; display: grid; aspect-ratio: 16/9; background: #111; overflow: hidden; place-items: center; }
.canvas-wrap.is-portrait { width: min(100%, 440px); aspect-ratio: 9/16; margin-inline: auto; }
#preview-canvas { display: block; width: 100%; height: 100%; cursor: grab; }
#preview-canvas:active { cursor: grabbing; }
#preview-canvas.is-selecting-face, #preview-canvas.is-selecting-face:active { cursor: crosshair; }
.empty-preview { position: absolute; display: grid; color: #fff; text-align: center; place-items: center; }
.empty-preview[hidden] { display: none; }
.empty-preview span { display: grid; width: 54px; aspect-ratio: 1; margin-bottom: 14px; color: var(--ink); background: var(--yellow); border-radius: 50%; font-size: 30px; place-items: center; }
.empty-preview p { margin: 7px 0 0; color: #aaa; font-size: 11px; }
.playing-badge { position: absolute; top: 12px; left: 12px; display: none; padding: 6px 8px; background: var(--pink); border: 2px solid #fff; color: #fff; font: 8px "DM Mono", monospace; }
.playing-badge.is-visible { display: block; }
.alignment-status { position: absolute; right: 12px; top: 12px; display: flex; align-items: center; gap: 7px; padding: 7px 10px; color: #fff; background: rgba(36, 29, 41, .82); border: 1px solid rgba(255,255,255,.65); border-radius: 99px; backdrop-filter: blur(8px); font-size: 9px; font-weight: 800; }
.alignment-status[hidden] { display: none; }
.alignment-status i { width: 8px; aspect-ratio: 1; background: var(--yellow); border-radius: 50%; }
.alignment-status.is-aligned i { background: var(--green); box-shadow: 0 0 0 3px rgba(114,219,147,.25); }
.alignment-status.is-failed i { background: var(--orange); }
.transport { display: flex; align-items: center; gap: 14px; padding: 14px 4px 1px; }
.round-button { flex: 0 0 auto; display: grid; width: 40px; aspect-ratio: 1; padding: 0 0 0 2px; color: #fff; background: var(--pink); border: 2px solid var(--line); border-radius: 50%; cursor: pointer; place-items: center; }
button:disabled { cursor: not-allowed; opacity: .38; }
.progress-track { flex: 1; height: 7px; background: #dfd5bf; border-radius: 99px; overflow: hidden; }
.progress-track i { display: block; width: 0; height: 100%; background: var(--purple); }
#time-readout { flex: 0 0 auto; font: 10px "DM Mono", monospace; }

.controls-panel { padding: 22px; }
.control-block { padding-bottom: 22px; margin-bottom: 22px; border-bottom: 2px dashed rgba(36,29,41,.25); }
.control-title { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; font-weight: 800; }
.control-actions { display: flex; gap: 6px; }
.control-title output { padding: 5px 9px; background: var(--yellow); border: 2px solid var(--line); border-radius: 99px; font-size: 11px; }
.control-title button { padding: 5px 8px; color: var(--ink); background: var(--blue); border: 2px solid var(--line); border-radius: 99px; cursor: pointer; font-size: 10px; font-weight: 800; }
.control-title #manual-face-button { background: var(--yellow); }
.control-title #manual-face-button.is-active { color: #fff; background: var(--pink); }
.control-title button[hidden] { display: none; }
.control-note { margin: -7px 0 13px; color: #756d79; font-size: 9px; line-height: 1.5; }
.control-block label { display: grid; grid-template-columns: 70px 1fr; align-items: center; gap: 10px; margin-top: 15px; font-size: 11px; font-weight: 700; }
.composition-block { padding: 16px; background: #fff0f6; border: 2px solid var(--line); }
.composition-block .control-title button { background: var(--green); }
.composition-values { display: flex; justify-content: space-between; margin-top: 12px; color: #756d79; font: 9px "DM Mono", monospace; }
.composition-values output { color: var(--ink); font-weight: 800; }
.format-block { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 7px 12px; }
.format-block > label { display: block; margin: 0; font-size: 12px; font-weight: 800; }
.format-block select { width: 100%; padding: 8px 10px; color: var(--ink); background: #fff; border: 2px solid var(--line); border-radius: 8px; font-size: 11px; font-weight: 800; cursor: pointer; }
.format-block small { grid-column: 2; color: #756d79; font: 9px "DM Mono", monospace; }
.format-block .stack-note { color: var(--pink); font-family: "Noto Sans SC", sans-serif; font-weight: 800; }
.people-block { display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; background: #e8f5ff; border: 2px solid var(--line); }
.people-block > div { display: grid; gap: 3px; }
.people-block strong { font-size: 12px; }
.people-block small { color: #756d79; font-size: 8px; }
.people-block label { display: flex; grid-template-columns: none; gap: 6px; margin: 0; }
.people-block input { width: 58px; padding: 7px 5px; background: #fff; border: 2px solid var(--line); border-radius: 8px; font-weight: 900; text-align: center; }
input[type="range"] { width: 100%; accent-color: var(--pink); cursor: pointer; }
.range-labels { display: flex; justify-content: space-between; color: #756d79; font-size: 9px; }
.privacy-note { display: flex; gap: 12px; padding: 14px; margin-bottom: 18px; background: #dff6e5; border: 2px solid var(--line); }
.privacy-note span { font-size: 25px; }
.privacy-note p { margin: 0; font-size: 10px; line-height: 1.65; }
.privacy-note strong { display: block; font-size: 12px; }
.export-button { display: flex; width: 100%; align-items: center; justify-content: space-between; padding: 14px 16px; color: #fff; background: var(--purple); border: 2px solid var(--line); box-shadow: 4px 4px 0 var(--line); cursor: pointer; text-align: left; }
.export-button span { font-weight: 800; }
.export-button small { font: 8px "DM Mono", monospace; opacity: .7; }

.timeline-panel { max-width: 1500px; margin: 28px auto 0; padding: 18px; }
.timeline-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.timeline-top > div { display: flex; align-items: baseline; gap: 12px; }
.timeline-top span { color: #756d79; font-size: 10px; }
.add-more { padding: 7px 11px; background: var(--orange); border: 2px solid var(--line); border-radius: 99px; cursor: pointer; font-size: 10px; font-weight: 800; }
.timeline-actions { display: flex; gap: 7px; }
.folder-more { background: var(--yellow); }
.timeline { display: flex; gap: 10px; min-height: 112px; padding: 4px 4px 10px; overflow-x: auto; }
.timeline-empty { align-self: center; width: 100%; color: #817984; font-size: 11px; text-align: center; }
.timeline-item { position: relative; flex: 0 0 128px; padding: 5px; background: #fff; border: 2px solid transparent; cursor: pointer; }
.timeline-item.is-active { border-color: var(--pink); box-shadow: 3px 3px 0 var(--pink); }
.timeline-item.is-dragging { opacity: .35; }
.timeline-item img { display: block; width: 100%; aspect-ratio: 16/9; object-fit: cover; background: #111; }
.timeline-number { display: block; margin-top: 5px; font: 9px "DM Mono", monospace; }
.timeline-remove { position: absolute; top: 1px; right: 1px; display: grid; width: 22px; aspect-ratio: 1; padding: 0; color: #fff; background: var(--ink); border: 0; cursor: pointer; place-items: center; }
.face-dot { position: absolute; right: 5px; bottom: 5px; display: grid; width: 20px; aspect-ratio: 1; color: var(--ink); background: var(--green); border: 1px solid var(--line); border-radius: 50%; font: 900 12px/1 sans-serif; font-style: normal; place-items: center; }
.face-dot.pending { background: var(--yellow); animation: status-pulse .8s ease-in-out infinite alternate; }
.face-dot.failed { color: #fff; background: #e73a4e; }

footer { display: flex; justify-content: space-between; padding: 28px 4vw; color: #fff; background: var(--ink); font: 9px "DM Mono", monospace; letter-spacing: .08em; }
.toast { position: fixed; z-index: 50; right: 22px; bottom: 22px; max-width: 360px; padding: 13px 17px; color: #fff; background: var(--ink); border: 2px solid #fff; box-shadow: 5px 5px 0 var(--pink); opacity: 0; pointer-events: none; transform: translateY(12px); transition: .2s ease; }
.toast.is-visible { opacity: 1; transform: translateY(0); }

@keyframes status-pulse { to { opacity: .35; transform: scale(.75); } }

@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }
  .hero-stack { display: none; }
  .studio-layout { grid-template-columns: 1fr; }
  .controls-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .control-block { margin: 0; border: 0; }
}
@media (max-width: 650px) {
  .memory-header { grid-template-columns: 1fr auto; }
  .memory-header > p { display: none; }
  .memory-brand { font-size: 21px; }
  .hero { min-height: auto; padding: 62px 22px 76px; }
  .hero h1 { font-size: clamp(52px, 15vw, 76px); }
  .studio { padding: 52px 14px 70px; }
  .studio-heading { align-items: start; flex-direction: column; gap: 15px; }
  .studio-heading h2 { font-size: 42px; }
  .controls-panel { grid-template-columns: 1fr; }
  .timeline-top > div span { display: none; }
  footer span:last-child { display: none; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; } }