:root {
  --purple: #6f3cc3;
  --purple-2: #8a63d2;
  --gold: #f2c35b;
  --gold-2: #ffe6b3;
  --bg: #ffffff;
  --bg-soft: #fbfbff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: rgba(31, 41, 55, 0.12);
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.10);
  --shadow-2: 0 18px 45px rgba(17, 24, 39, 0.18);
  --radius: 14px;
  --transition: all 0.25s ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Open Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}
body.no-scroll { overflow: hidden; }

.container {
  width: 100%;
  max-width: 1720px;
  margin: 0 auto;
  padding: 0 14px;
}

h1, h2, h3 {
  font-family: "Varela Round", system-ui, sans-serif;
  margin: 0 0 12px 0;
  line-height: 1.25;
}
h1 { font-size: 2.35rem; }
h2 {
  font-size: 2.05rem;
  display: inline-block;
  position: relative;
  margin-bottom: 18px;
}
h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 54px;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--purple), var(--gold));
}
p { margin: 0 0 14px 0; color: rgba(31,41,55,0.88); font-size: 1.05rem; }

.muted { color: var(--muted); }

/* Header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(0,0,0,0.04);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.main-nav { display: flex; justify-content: center; }
.nav-links {
  list-style: none;
  display: flex;
  gap: 14px;
  padding: 14px 0;
  margin: 0;
  flex-wrap: wrap;
  justify-content: center;
}
.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 1rem;
  padding: 6px 10px;
  border-radius: 999px;
  transition: var(--transition);
}
.nav-links a:hover {
  background: rgba(111, 60, 195, 0.08);
  color: var(--purple);
}

/* Hero */
.hero-section {
  padding-top: 92px;
  padding-bottom: 26px;
  background:
    radial-gradient(900px 400px at 15% 10%, rgba(242,195,91,0.35), transparent 60%),
    radial-gradient(900px 400px at 85% 10%, rgba(111,60,195,0.25), transparent 60%),
    linear-gradient(to bottom, #fcfcff, #ffffff);
}
.hero-card {
  border: 1px solid rgba(111, 60, 195, 0.10);
  background: rgba(255,255,255,0.86);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 22px 22px 16px;
}
.title { margin-bottom: 6px; }
.subtitle {
  margin: 0;
  font-size: 1.08rem;
  color: rgba(31, 41, 55, 0.78);
}
.gradient-text {
  background: linear-gradient(45deg, var(--purple), #06c29c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 800;
}
.title-break { display: inline; }
@media (min-width: 860px) { .title-break { display: block; height: 0; } }

.link-labels {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 26px;
  margin: 18px 0 12px;
}
.link-block {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  border-radius: 12px;
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
  background: rgba(255,255,255,0.8);
}
.link-block[aria-disabled="true"] { cursor: not-allowed; opacity: 0.7; }
.link-block:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: rgba(111,60,195,0.18); }
.main-icon { font-size: 44px; color: var(--text); transition: var(--transition); }
.link-block:hover .main-icon { color: var(--purple); }
.link-labels-text { font-weight: 700; color: rgba(31,41,55,0.7); font-size: 0.95rem; text-align: center; line-height: 1.15; }
.link-kicker { display: block; font-size: 0.78rem; letter-spacing: 0.02em; opacity: 0.82; }
.link-main { display: block; font-size: 0.93rem; }

/* Authors / affiliations */
.author-line {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
  margin-bottom: 8px;
}
.author-text {
  color: rgba(31, 41, 55, 0.92);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.06rem;
  transition: var(--transition);
  white-space: nowrap;
}
.author-text:hover {
  color: var(--purple);
  text-decoration: underline;
}
.author-text[aria-disabled="true"] {
  cursor: default;
  text-decoration: none;
  opacity: 0.92;
}
.author-text sup {
  font-size: 0.72em;
  vertical-align: super;
  margin-left: 1px;
}
.author-divider { color: rgba(31,41,55,0.45); }
.affiliations {
  text-align: center;
  color: rgba(31,41,55,0.72);
  font-weight: 600;
  margin-bottom: 6px;
}
.affiliations sup {
  font-size: 0.82em;
  vertical-align: super;
  margin-right: 2px;
}

/* Link button sizing (under authors) */
.link-labels { margin-top: 10px; }
.link-block { min-width: 120px; }
.main-icon { font-size: 38px; }

.hero-note {
  margin-top: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(242,195,91,0.35);
  background: linear-gradient(180deg, rgba(255,230,179,0.55), rgba(255,255,255,0.75));
  color: rgba(31,41,55,0.88);
}

/* Sections */
.main-content { padding: 10px 0 70px; }
.section { margin-top: 54px; }

.card {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: var(--shadow);
  padding: 18px 18px 16px;
}
.card:hover { box-shadow: var(--shadow-2); }

.figure-card figure { margin: 0; }
.img {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.06);
  background: #fff;
}
.zoomable { cursor: zoom-in; }
.figure-card figcaption {
  margin-top: 10px;
  color: rgba(31,41,55,0.72);
  font-size: 0.98rem;
}

.codeblock {
  margin: 0;
  padding: 14px 14px;
  border-radius: 12px;
  background: #f5f7ff;
  border-left: 4px solid var(--purple);
  overflow-x: auto;
  font-size: 0.95rem;
}

/* Warning */
.warning {
  border-radius: var(--radius);
  border: 1px solid rgba(111, 60, 195, 0.22);
  background: linear-gradient(135deg, rgba(111,60,195,0.08), rgba(242,195,91,0.12));
  padding: 16px 16px 14px;
  box-shadow: var(--shadow);
}
.warning-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}
.warning-title i { color: var(--purple); }
.warning-text { color: rgba(31,41,55,0.82); }
.warning-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }

.btn {
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 800;
  font-size: 0.95rem;
  transition: var(--transition);
}
.btn-primary {
  color: #111827;
  background: linear-gradient(90deg, rgba(242,195,91,0.92), rgba(111,60,195,0.18));
  border: 1px solid rgba(242,195,91,0.55);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-ghost {
  background: rgba(255,255,255,0.75);
  border: 1px solid rgba(111,60,195,0.20);
  color: var(--purple);
}
.btn-ghost:hover { background: rgba(111,60,195,0.07); }

/* Demos */
.demos-root { margin-top: 16px; }
.loading { color: var(--muted); padding: 18px 4px; }

.demo-group {
  margin-top: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(0,0,0,0.06);
  background: var(--bg-soft);
  padding: 12px;
}
.demo-group-title { margin: 0 0 6px 0; }
.demo-group-desc { color: rgba(31,41,55,0.72); }

.demo-disclaimer {
  border-radius: 12px;
  border: 1px solid rgba(242,195,91,0.55);
  background: linear-gradient(180deg, rgba(255,230,179,0.55), rgba(255,255,255,0.75));
  padding: 10px 12px;
  color: rgba(31,41,55,0.86);
  font-weight: 650;
}

.demo-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 12px;
  width: 100%;
}

.demo-card {
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: var(--shadow);
  overflow: hidden;
  width: 100%;
}
.demo-card:hover { box-shadow: var(--shadow-2); }
.demo-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 14px 10px;
  gap: 12px;
}
.demo-title { margin: 0; font-size: 1.1rem; }
.demo-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 900;
  font-size: 0.82rem;
  color: rgba(31,41,55,0.82);
  background: linear-gradient(90deg, rgba(242,195,91,0.55), rgba(111,60,195,0.10));
  border: 1px solid rgba(242,195,91,0.5);
  padding: 6px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.demo-body { padding: 0 12px 12px; }
.demo-body { width: 100%; }
.image-tile { position: relative; }
.tile-label {
  position: absolute;
  left: 10px;
  top: 10px;
  z-index: 2;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 900;
  font-size: 0.82rem;
  color: #fff;
  background: rgba(17,24,39,0.65);
  border: 1px solid rgba(255,255,255,0.18);
}

/* One-row, six-column layout per sample */
.sample-row-wrap {
  margin-top: 12px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.sample-row {
  --col-img: 210px;
  --col-prompt: 260px;
  --col-video: 300px;
  display: grid;
  grid-template-columns:
    var(--col-img)
    var(--col-prompt)
    var(--col-video)
    var(--col-img)
    var(--col-prompt)
    var(--col-video);
  gap: 12px;
  align-items: stretch;
  min-width: calc(var(--col-img) * 2 + var(--col-prompt) * 2 + var(--col-video) * 2 + 12px * 5);
}

.cell {
  width: 100%;
  min-height: 0;
}

.prompt-cell {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.prompt-box {
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  background: rgba(255,255,255,0.75);
  padding: 10px 12px;
  color: rgba(31,41,55,0.85);
  font-size: 0.95rem;
  line-height: 1.5;
  flex: 1 1 auto;
  min-height: 0; /* allow internal scroll within a flex column */
  overflow: auto;
  white-space: pre-wrap;
}

.prompt-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px 0;
  font-weight: 900;
  font-size: 0.86rem;
  color: rgba(31,41,55,0.78);
  background: linear-gradient(90deg, rgba(242,195,91,0.45), rgba(111,60,195,0.10));
  border: 1px solid rgba(242,195,91,0.35);
  padding: 6px 10px;
  border-radius: 999px;
  width: fit-content;
}

.prompt-box .hint {
  color: rgba(31,41,55,0.55);
  font-weight: 700;
}

.video-cell .toggle-row {
  margin-top: 8px;
}

@media (max-width: 1100px) {
  .sample-row {
    --col-img: 190px;
    --col-prompt: 240px;
    --col-video: 280px;
  }
}

.video-tile { position: relative; }
.video-tile video {
  width: 100%;
  display: block;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  background: #000;
  cursor: pointer;
}

.refusal-tile {
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  background: #000;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  letter-spacing: 0.5px;
  user-select: none;
  aspect-ratio: var(--refusal-ar, 16 / 9);
}
.tile-actions {
  position: absolute;
  right: 10px;
  top: 10px;
  z-index: 3;
  display: flex;
  gap: 8px;
}

.tile-actions.left {
  right: auto;
  left: 10px;
}
.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(0,0,0,0.55);
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.icon-btn:hover { background: rgba(0,0,0,0.78); transform: translateY(-1px); }

.prompt-btn {
  margin-top: 10px;
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(111,60,195,0.22);
  background: rgba(111,60,195,0.06);
  padding: 10px 12px;
  cursor: pointer;
  font-weight: 900;
  color: var(--purple);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.prompt-btn:hover { background: rgba(111,60,195,0.10); }

/* Sensitive gating (per-demo, no global switch) */
.sensitive-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 14px;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none; /* never block video controls */
}
.sensitive-overlay .badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(17,24,39,0.72);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.18);
  font-weight: 900;
}

/* Demo text block */
.demo-text {
  margin-top: 10px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  background: rgba(255,255,255,0.75);
  padding: 10px 12px;
  width: 100%;
}
.demo-text .k {
  font-weight: 900;
  color: rgba(31,41,55,0.85);
}
.demo-text .v {
  color: rgba(31,41,55,0.78);
}
.demo-text code {
  background: rgba(111,60,195,0.08);
  border: 1px solid rgba(111,60,195,0.18);
  padding: 2px 6px;
  border-radius: 8px;
}

/* Model selector / label (purple–gold theme) */
.model-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.model-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(111,60,195,0.25);
  background: linear-gradient(90deg, rgba(111,60,195,0.10), rgba(242,195,91,0.14));
  color: var(--purple);
  font-weight: 900;
}

.model-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding: 8px 36px 8px 12px;
  border-radius: 12px;
  border: 1px solid rgba(111,60,195,0.25);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.85), rgba(255,255,255,0.75));
  color: rgba(31,41,55,0.88);
  font-weight: 800;
  cursor: pointer;
  position: relative;
}

.model-select:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(111,60,195,0.12);
}

.model-select-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.model-select-wrap::after {
  content: "▾";
  position: absolute;
  right: 12px;
  pointer-events: none;
  color: var(--purple);
  font-weight: 900;
}

/* Mask / original toggle */
.toggle-row {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.toggle-btn {
  border-radius: 12px;
  border: 1px solid rgba(111,60,195,0.22);
  background: rgba(111,60,195,0.06);
  padding: 10px 12px;
  cursor: pointer;
  font-weight: 900;
  color: var(--purple);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.toggle-btn:hover { background: rgba(111,60,195,0.10); }

.loop-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.08);
  background: rgba(255,255,255,0.75);
  color: rgba(31,41,55,0.85);
  font-weight: 800;
  user-select: none;
}
.loop-toggle input { width: 16px; height: 16px; }

.preview-note {
  color: rgba(31,41,55,0.70);
  font-size: 0.95rem;
}

.blurred-preview {
  filter: blur(12px) saturate(0.9);
  transform: scale(1.01);
}

/* Confirm modal buttons row */
.confirm-actions {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.sensitive-overlay .badge i { color: var(--gold); }

/* Lightboxes */
.lightbox {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background: rgba(0,0,0,0.92);
  z-index: 11000;
}
.lightbox.active { display: flex; }
.lightbox img {
  max-width: 94vw;
  max-height: 92vh;
  border-radius: 14px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.55);
}
.lightbox video {
  width: min(94vw, 1200px);
  max-height: 92vh;
  border-radius: 14px;
  background: #000;
}
.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.10);
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.lightbox-close:hover { background: rgba(255,255,255,0.18); transform: translateY(-1px); }

/* Prompt modal */
.prompt-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
  background: rgba(0,0,0,0.86);
  z-index: 12000;
}
.prompt-modal.active { display: flex; }
.prompt-modal-card {
  width: min(920px, 96vw);
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.08);
  box-shadow: 0 30px 80px rgba(0,0,0,0.35);
  padding: 16px 16px 14px;
  position: relative;
}
.prompt-modal-title { margin: 0 0 10px 0; }
.prompt-modal-text {
  margin: 0;
  max-height: 64vh;
  overflow: auto;
  border-radius: 12px;
  background: #f8fafc;
  border: 1px solid rgba(0,0,0,0.06);
  padding: 12px;
  white-space: pre-wrap;
  color: rgba(31,41,55,0.88);
  line-height: 1.6;
}
.prompt-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: rgba(31,41,55,0.75);
  font-size: 1.1rem;
}
.prompt-modal-close:hover { color: var(--purple); }

/* Footer */
.site-footer {
  background: linear-gradient(180deg, #ffffff, #fafafe);
  border-top: 1px solid rgba(0,0,0,0.05);
  padding: 26px 0;
  margin-top: 60px;
}
.credit { margin: 0; text-align: center; color: rgba(31,41,55,0.70); font-size: 0.95rem; }