@font-face {
  font-family: "Saira SemiCondensed";
  src: url("../versions/v2-real-kling/assets/fonts/saira-semi-condensed-latin-600-normal.woff2") format("woff2");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("../versions/v2-real-kling/assets/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("../versions/v2-real-kling/assets/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  font-style: normal;
  font-weight: 500;
  font-display: swap;
}

:root {
  --void: #05070a;
  --void-raised: #0a0d11;
  --void-panel: #0e1217;
  --photon: #f2f0ea;
  --soft: #a7abb0;
  --soft-dim: #737980;
  --wafer: #6fa3c9;
  --gold: #e8b85a;
  --line: rgba(242, 240, 234, 0.14);
  --line-strong: rgba(242, 240, 234, 0.28);
  --max: 1500px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  min-width: 320px;
  color-scheme: dark;
  background: var(--void);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--photon);
  background:
    radial-gradient(circle at 73% -10%, rgba(111, 163, 201, 0.1), transparent 31rem),
    linear-gradient(180deg, #070a0e 0, var(--void) 32rem);
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button, select, input { font: inherit; }
button, select, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
img { display: block; max-width: 100%; }
[hidden] { display: none !important; }

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 9px 13px;
  color: var(--void);
  background: var(--photon);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

.portal-header,
.portal-main,
.portal-footer {
  width: min(calc(100% - 64px), var(--max));
  margin-inline: auto;
}

.portal-header { padding: 38px 0 44px; }

.header-rule {
  display: flex;
  align-items: center;
  gap: 14px;
  height: 7px;
  margin-bottom: 70px;
}

.header-rule::before,
.header-rule::after {
  content: "";
  height: 1px;
  background: var(--line);
}

.header-rule::before { width: 11%; }
.header-rule::after { flex: 1; }
.header-rule span { width: 38px; height: 3px; background: var(--wafer); }
.header-rule i { width: 7px; height: 7px; border: 1px solid var(--gold); border-radius: 50%; }

.header-copy {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(520px, 1.8fr);
  column-gap: 6vw;
  align-items: end;
}

.eyebrow,
.collection-label,
.collection-count,
.card-index,
.card-date,
.status-badge,
.method-list dt,
.prompt-label,
.compare-dock__label,
.frame-toolbar label {
  margin: 0;
  color: var(--soft);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header-copy .eyebrow { align-self: start; padding-top: 18px; }

h1, h2, h3, p { margin-top: 0; }

.header-copy h1 {
  grid-column: 2;
  margin: 0;
  font-family: "Saira SemiCondensed", sans-serif;
  font-size: clamp(46px, 6.2vw, 102px);
  font-weight: 600;
  line-height: 0.84;
  letter-spacing: -0.045em;
}

.header-copy h1 span {
  display: block;
  margin-top: 14px;
  color: var(--soft);
  font-size: 0.34em;
  line-height: 1;
  letter-spacing: -0.01em;
}

.intro {
  grid-column: 2;
  max-width: 760px;
  margin: 31px 0 0;
  color: var(--soft);
  font-size: clamp(16px, 1.4vw, 21px);
  line-height: 1.55;
}

.portal-tools {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 32px;
  margin-top: 60px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.legend { display: flex; flex-wrap: wrap; gap: 13px 25px; color: var(--soft); font-size: 13px; }
.legend > span { display: inline-flex; align-items: center; gap: 9px; }
.legend-swatch { display: inline-block; width: 16px; height: 7px; border: 1px solid var(--line-strong); }
.legend-swatch--frame { border-color: var(--wafer); }
.legend-swatch--method { background: rgba(111, 163, 201, 0.25); }
.legend-swatch--prompt { border-color: var(--gold); border-radius: 50%; width: 7px; }

.mode-toggle,
.button,
.icon-button {
  border: 1px solid var(--line-strong);
  color: var(--photon);
  background: transparent;
  cursor: pointer;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.mode-toggle {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 10px;
  min-height: 40px;
  padding: 8px 13px;
}

.mode-toggle:hover, .mode-toggle[aria-pressed="true"] { color: var(--void); border-color: var(--wafer); background: var(--wafer); }
.mode-toggle__mark { width: 9px; height: 9px; border: 1px solid currentColor; }
.mode-toggle[aria-pressed="true"] .mode-toggle__mark { background: currentColor; box-shadow: inset 0 0 0 2px var(--wafer); }

.portal-main { padding-bottom: 70px; }

.collection-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
}

.collection-count { color: var(--soft-dim); letter-spacing: 0.05em; }

.version-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.loading-state,
.static-message,
.error-state {
  grid-column: 1 / -1;
  padding: 70px 24px;
  border: 1px solid var(--line);
  color: var(--soft);
  text-align: center;
}

.loading-state p { margin: 16px 0 0; }
.loading-orbit { display: inline-block; width: 23px; height: 23px; border: 1px solid var(--line-strong); border-top-color: var(--wafer); border-radius: 50%; animation: orbit 1.1s linear infinite; }
@keyframes orbit { to { transform: rotate(360deg); } }

.version-card {
  position: relative;
  min-width: 0;
  border: 1px solid var(--line);
  background: rgba(10, 13, 17, 0.82);
  overflow: hidden;
  transition: border-color 220ms ease, transform 220ms ease, background 220ms ease;
}

.version-card:hover { border-color: var(--line-strong); background: rgba(14, 18, 23, 0.95); }
.select-mode .version-card:not(.is-rendering) { cursor: pointer; }
.select-mode .version-card:not(.is-rendering):hover { border-color: var(--wafer); transform: translateY(-2px); }
.version-card.is-selected { border-color: var(--gold); box-shadow: inset 0 0 0 1px var(--gold); }
.version-card.is-selected::after {
  content: "Selected";
  position: absolute;
  z-index: 4;
  top: 14px;
  right: 14px;
  padding: 7px 9px;
  color: var(--void);
  background: var(--gold);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.card-visual {
  position: relative;
  aspect-ratio: 16 / 8.5;
  margin: 0;
  overflow: hidden;
  background:
    linear-gradient(135deg, transparent 0 48%, rgba(111, 163, 201, 0.15) 48% 49%, transparent 49%),
    radial-gradient(circle at 50% 50%, rgba(111, 163, 201, 0.15), transparent 40%),
    #080b0f;
}

.card-visual::before,
.card-visual::after {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 50% auto auto 50%;
  border: 1px solid rgba(111, 163, 201, 0.25);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.card-visual::before { width: 23%; aspect-ratio: 1; }
.card-visual::after { width: 42%; aspect-ratio: 1; border-style: dashed; }

.card-visual img {
  position: absolute;
  z-index: 1;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.76) contrast(1.05);
  transition: opacity 420ms ease, transform 700ms cubic-bezier(.2,.7,.2,1), filter 300ms ease;
}

.card-visual .thumb-mid { opacity: 0; }
.version-card:hover .thumb-mid,
.version-card:focus-within .thumb-mid { opacity: 1; }
.version-card:hover .card-visual img { transform: scale(1.018); filter: saturate(0.92) contrast(1.03); }

.visual-scan {
  position: absolute;
  z-index: 2;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 65%, rgba(5, 7, 10, 0.75));
}

.placeholder-copy {
  position: absolute;
  z-index: 1;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 9px;
  color: var(--soft-dim);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.13em;
  text-align: center;
  text-transform: uppercase;
}

.placeholder-copy strong { color: var(--wafer); font-family: "Saira SemiCondensed", sans-serif; font-size: 24px; letter-spacing: 0.03em; }

.visual-state {
  position: absolute;
  z-index: 3;
  left: 16px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--photon);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.visual-state i { display: inline-block; width: 26px; height: 1px; background: var(--wafer); }
.is-rendering .visual-state i { background: var(--gold); animation: pulse-line 1.5s ease-in-out infinite; }
@keyframes pulse-line { 50% { opacity: 0.3; transform: scaleX(0.5); transform-origin: left; } }

.card-body { padding: 22px 24px 24px; }
.card-kicker { display: flex; justify-content: space-between; gap: 18px; margin-bottom: 11px; }
.card-kicker__meta { display: inline-flex; align-items: center; gap: 10px; }
.status-badge { color: var(--gold); }
.card-date { color: var(--soft-dim); letter-spacing: 0.06em; }

.version-card h2 {
  margin: 0;
  font-family: "Saira SemiCondensed", sans-serif;
  font-size: clamp(30px, 3vw, 46px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.025em;
}

.tagline { max-width: 720px; margin: 14px 0 0; color: var(--soft); font-size: 15px; line-height: 1.55; }
.concept { margin: 21px 0 0; padding-left: 14px; border-left: 1px solid var(--wafer); color: #c9cbca; font-size: 13px; line-height: 1.58; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 21px 0 0; padding: 0; list-style: none; }
.chips li { padding: 4px 7px 3px; border: 1px solid var(--line); color: var(--soft); font-family: "IBM Plex Mono", monospace; font-size: 9px; letter-spacing: 0.09em; text-transform: uppercase; }

.card-data {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin-top: 22px;
  border-block: 1px solid var(--line);
}

.data-item { padding: 12px 0; }
.data-item + .data-item { padding-left: 18px; border-left: 1px solid var(--line); }
.data-item span { display: block; color: var(--soft-dim); font-family: "IBM Plex Mono", monospace; font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; }
.data-item strong { display: block; margin-top: 2px; font-family: "Saira SemiCondensed", sans-serif; font-size: 20px; font-weight: 600; }

.method-block { margin-top: 24px; }
.method-block h3 { display: flex; align-items: center; gap: 12px; margin: 0 0 15px; font-family: "Saira SemiCondensed", sans-serif; font-size: 19px; font-weight: 600; letter-spacing: 0.01em; }
.method-block h3::before { content: "+"; color: var(--gold); font-family: "IBM Plex Mono", monospace; font-size: 13px; }

.method-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 22px; margin: 0; }
.method-list div { min-width: 0; }
.method-list dt { color: var(--wafer); }
.method-list dd { margin: 5px 0 0; color: var(--soft); font-size: 12px; line-height: 1.55; }

.prompt-block { margin-top: 23px; padding: 15px; border: 1px solid rgba(232, 184, 90, 0.22); background: rgba(232, 184, 90, 0.025); }
.prompt-row + .prompt-row { margin-top: 13px; padding-top: 13px; border-top: 1px solid var(--line); }
.prompt-label { display: block; margin-bottom: 5px; color: var(--gold); }
.prompt-copy { margin: 0; color: var(--soft); font-size: 11px; line-height: 1.55; }
.files-line { margin: 0; overflow-wrap: anywhere; color: #b9cfe0; font-family: "IBM Plex Mono", monospace; font-size: 10px; line-height: 1.55; }
.files-line::before { content: "↳ "; color: var(--wafer); }

.card-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 23px; }
.button { display: inline-flex; min-height: 37px; align-items: center; justify-content: center; gap: 8px; padding: 8px 11px; text-decoration: none; }
.button:hover { color: var(--void); border-color: var(--photon); background: var(--photon); transform: translateY(-1px); }
.button--compare { margin-left: auto; border-color: rgba(111, 163, 201, 0.55); color: #a8cee9; }
.button--gold { border-color: var(--gold); color: var(--void); background: var(--gold); }
.button--gold:hover { border-color: var(--photon); background: var(--photon); }
.button[aria-disabled="true"], .button:disabled { color: var(--soft-dim); border-color: var(--line); background: transparent; cursor: not-allowed; opacity: 0.62; transform: none; }

.compare-dock {
  position: fixed;
  z-index: 20;
  right: 24px;
  bottom: 22px;
  left: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 760px;
  margin-inline: auto;
  padding: 12px 12px 12px 16px;
  border: 1px solid rgba(232, 184, 90, 0.45);
  background: rgba(8, 11, 15, 0.96);
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(18px);
}

.compare-dock__selection { min-width: 0; }
.compare-dock__selection > span:last-child { display: block; overflow: hidden; margin-top: 2px; color: var(--photon); font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.compare-dock__label { display: block; color: var(--gold); }

.portal-footer { display: flex; justify-content: space-between; gap: 24px; padding: 19px 0 30px; border-top: 1px solid var(--line); color: var(--soft-dim); font-family: "IBM Plex Mono", monospace; font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; }

.static-message h2, .error-state h2 { margin-bottom: 8px; color: var(--photon); font-family: "Saira SemiCondensed", sans-serif; font-size: 28px; }
.static-message p, .error-state p { margin-bottom: 0; }
.static-message ul { display: inline-block; margin: 20px auto 0; padding-left: 22px; text-align: left; }
.static-message a, .error-state a { color: var(--wafer); }

/* Comparison workspace */
.compare-page { height: 100vh; overflow: hidden; background: var(--void); }
.compare-header {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: 160px 1fr auto;
  align-items: center;
  min-height: 84px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line-strong);
  background: rgba(5, 7, 10, 0.96);
}

.back-link { color: var(--soft); font-family: "IBM Plex Mono", monospace; font-size: 11px; letter-spacing: 0.07em; text-decoration: none; text-transform: uppercase; }
.back-link:hover { color: var(--photon); }
.compare-title { justify-self: center; text-align: center; }
.compare-title h1 { margin: 1px 0 0; font-family: "Saira SemiCondensed", sans-serif; font-size: 25px; font-weight: 600; line-height: 1; }
.compare-title .eyebrow { color: var(--wafer); font-size: 9px; }
.compare-controls { display: flex; align-items: center; justify-content: flex-end; gap: 14px; }

.check-control { display: inline-flex; align-items: center; gap: 7px; color: var(--soft); font-family: "IBM Plex Mono", monospace; font-size: 10px; letter-spacing: 0.05em; text-transform: uppercase; cursor: pointer; }
.check-control input { width: 14px; height: 14px; margin: 0; accent-color: var(--wafer); }
.icon-button { min-height: 34px; padding: 6px 10px; }
.icon-button:hover { color: var(--void); background: var(--photon); border-color: var(--photon); }

.compare-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: calc(100vh - 84px);
}

.compare-stage.is-stacked { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
.compare-panel { display: grid; grid-template-rows: auto 1fr; min-width: 0; min-height: 0; }
.compare-panel + .compare-panel { border-left: 1px solid var(--line-strong); }
.compare-stage.is-stacked .compare-panel + .compare-panel { border-top: 1px solid var(--line-strong); border-left: 0; }

.frame-toolbar { display: grid; grid-template-columns: auto minmax(150px, 1fr); align-items: center; gap: 3px 14px; min-height: 62px; padding: 9px 14px; border-bottom: 1px solid var(--line); background: var(--void-raised); }
.frame-toolbar label { grid-row: 1 / span 2; color: var(--wafer); writing-mode: vertical-rl; transform: rotate(180deg); font-size: 8px; }
.frame-toolbar select {
  width: 100%;
  min-width: 0;
  height: 28px;
  padding: 2px 30px 2px 8px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  color: var(--photon);
  background: #0b0f13;
  font-family: "Saira SemiCondensed", sans-serif;
  font-size: 15px;
  font-weight: 600;
}
.frame-meta { margin: 0; color: var(--soft-dim); font-family: "IBM Plex Mono", monospace; font-size: 9px; letter-spacing: 0.06em; text-transform: uppercase; }
.frame-shell { position: relative; min-height: 0; overflow: hidden; background: #020304; }
.frame-shell iframe { width: 100%; height: 100%; border: 0; background: #020304; }

.frame-unavailable { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 7px; padding: 24px; color: var(--soft); background: radial-gradient(circle, rgba(111, 163, 201, 0.1), transparent 32%), #05070a; text-align: center; }
.frame-unavailable strong { color: var(--photon); font-family: "Saira SemiCondensed", sans-serif; font-size: 24px; }
.frame-unavailable span:last-child { font-size: 12px; }
.rendering-glyph { display: block; width: 58px; height: 58px; margin-bottom: 10px; border: 1px solid rgba(111, 163, 201, 0.4); border-radius: 50%; box-shadow: 0 0 0 12px rgba(111, 163, 201, 0.04), 0 0 0 24px rgba(111, 163, 201, 0.025); animation: orbit 5s linear infinite; }
.rendering-glyph::after { content: ""; display: block; width: 5px; height: 5px; margin: -3px 0 0 25px; border-radius: 50%; background: var(--gold); }

.compare-error { position: fixed; z-index: 30; top: 96px; left: 50%; width: min(520px, calc(100% - 32px)); padding: 16px; border: 1px solid rgba(232, 184, 90, 0.5); color: var(--soft); background: var(--void-panel); text-align: center; transform: translateX(-50%); }
.static-message--compare { position: fixed; z-index: 40; inset: 50% auto auto 50%; width: min(600px, calc(100% - 32px)); background: var(--void-panel); transform: translate(-50%, -50%); }

@media (max-width: 1099px) {
  .header-copy { grid-template-columns: 1fr; }
  .header-copy .eyebrow, .header-copy h1, .intro { grid-column: 1; }
  .header-copy .eyebrow { margin-bottom: 26px; }
  .header-copy h1 { font-size: clamp(54px, 10vw, 90px); }
  .version-grid { grid-template-columns: 1fr; }
}

@media (max-width: 840px) {
  .compare-header { grid-template-columns: 1fr auto; min-height: 118px; gap: 12px; }
  .compare-title { justify-self: start; text-align: left; }
  .back-link { grid-column: 1; grid-row: 1; }
  .compare-title { grid-column: 1; grid-row: 2; }
  .compare-controls { grid-column: 2; grid-row: 1 / span 2; flex-wrap: wrap; max-width: 300px; }
  .compare-stage { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; height: calc(100vh - 118px); }
  .compare-panel + .compare-panel { border-top: 1px solid var(--line-strong); border-left: 0; }
}

@media (max-width: 620px) {
  .portal-header, .portal-main, .portal-footer { width: min(calc(100% - 28px), var(--max)); }
  .portal-header { padding-top: 20px; padding-bottom: 31px; }
  .header-rule { margin-bottom: 42px; }
  .header-copy .eyebrow { margin-bottom: 20px; padding-top: 0; }
  .header-copy h1 { font-size: clamp(46px, 15vw, 67px); line-height: 0.86; }
  .header-copy h1 span { margin-top: 11px; font-size: 0.31em; line-height: 1.08; }
  .intro { margin-top: 24px; font-size: 15px; }
  .portal-tools { display: grid; margin-top: 38px; }
  .mode-toggle { width: 100%; justify-content: center; }
  .collection-head { align-items: flex-end; }
  .collection-count { max-width: 150px; text-align: right; }
  .version-grid { gap: 16px; }
  .card-body { padding: 19px 17px 20px; }
  .card-visual { aspect-ratio: 4 / 3; }
  .version-card h2 { font-size: 35px; }
  .concept { font-size: 12px; }
  .method-list { grid-template-columns: 1fr; }
  .card-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .button--compare { grid-column: 1 / -1; margin-left: 0; }
  .compare-dock { right: 10px; bottom: 10px; left: 10px; padding-left: 12px; }
  .compare-dock__selection > span:last-child { max-width: 195px; }
  .portal-footer { display: grid; }

  .compare-page { overflow: auto; }
  .compare-header { position: sticky; top: 0; display: grid; grid-template-columns: 1fr auto; min-height: 132px; padding: 12px 14px; }
  .compare-title h1 { font-size: 21px; }
  .compare-controls { display: grid; grid-template-columns: 1fr; justify-items: end; gap: 7px; }
  .icon-button { min-height: 30px; }
  .compare-stage { min-height: 900px; height: calc(100vh - 132px); }
  .frame-toolbar { padding-inline: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}