/* ==========================================================================
   openOii Landing Page — Editorial Blueprint & Non-Template Architecture
   ========================================================================== */

@font-face {
  font-family: "Oii Display";
  src: url("./assets/fonts/oii-display.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Schibsted Grotesk";
  src: url("./assets/fonts/schibsted-grotesk-var.woff2") format("woff2");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("./assets/fonts/ibm-plex-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("./assets/fonts/ibm-plex-mono-500.woff2") format("woff2");
  font-weight: 500 600;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Warm Editorial Newsprint / Studio Paper (Light Default) */
  --bg-page: 245 243 238;         /* #F5F3EE */
  --bg-surface: 252 251 248;      /* #FCFBF8 */
  --bg-elevated: 255 255 255;     /* #FFFFFF */
  --bg-subtle: 236 233 225;       /* #ECE9E1 */
  --ink-strong: 18 19 22;         /* #121316 */
  --ink-body: 68 70 78;           /* #44464E */
  --ink-muted: 124 128 140;       /* #7C808C */
  --brand-primary: 37 78 218;     /* #254EDA */
  --status-pass: 18 132 92;       /* #12845C */
  --status-warn: 208 98 18;       /* #D06212 */

  --line-color: rgb(18 19 22 / 0.11);
  --line-strong: rgb(18 19 22 / 0.22);

  --shadow-float:
    0 32px 64px -16px rgb(18 19 22 / 0.14),
    0 12px 24px -8px rgb(18 19 22 / 0.07),
    0 0 0 1px rgb(18 19 22 / 0.09);

  --shadow-card:
    0 12px 28px -8px rgb(18 19 22 / 0.08),
    0 0 0 1px rgb(18 19 22 / 0.08);

  --font-display: "Schibsted Grotesk", "Oii Display", "PingFang SC", "Source Han Sans SC", sans-serif;
  --font-sans: "Schibsted Grotesk", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Georgia", "Times New Roman", serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

html[data-theme="dark"] {
  --bg-page: 11 12 16;            /* #0B0C10 */
  --bg-surface: 17 19 25;         /* #111319 */
  --bg-elevated: 24 27 36;        /* #181B24 */
  --bg-subtle: 21 24 32;          /* #151820 */
  --ink-strong: 244 245 248;      /* #F4F5F8 */
  --ink-body: 168 174 190;        /* #A8AEBE */
  --ink-muted: 112 118 136;       /* #707688 */
  --brand-primary: 96 138 255;    /* #608AFF */
  --status-pass: 52 211 153;      /* #34D399 */
  --status-warn: 251 146 60;      /* #FB923C */

  --line-color: rgb(255 255 255 / 0.09);
  --line-strong: rgb(255 255 255 / 0.2);

  --shadow-float:
    0 36px 72px -16px rgb(0 0 0 / 0.68),
    0 14px 28px -8px rgb(0 0 0 / 0.5),
    0 0 0 1px rgb(255 255 255 / 0.11);

  --shadow-card:
    0 14px 32px -8px rgb(0 0 0 / 0.55),
    0 0 0 1px rgb(255 255 255 / 0.09);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: rgb(var(--bg-page));
  color: rgb(var(--ink-strong));
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 220ms var(--ease-out), color 220ms var(--ease-out);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid rgb(var(--brand-primary));
  outline-offset: 2px;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* --------------------------------------------------------------------------
   Architectural Frame & Crosshair Nodes
   -------------------------------------------------------------------------- */
.arch-shell {
  max-width: 1320px;
  margin: 0 auto;
  border-left: 1px solid var(--line-color);
  border-right: 1px solid var(--line-color);
  position: relative;
}

.arch-row {
  border-bottom: 1px solid var(--line-color);
  position: relative;
}

.arch-row::before,
.arch-row::after {
  content: "+";
  position: absolute;
  bottom: -9px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  color: rgb(var(--ink-muted) / 0.65);
  pointer-events: none;
  z-index: 5;
}

.arch-row::before {
  left: -4.5px;
}

.arch-row::after {
  right: -4.5px;
}

@media (max-width: 1340px) {
  .arch-row::before,
  .arch-row::after {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Sticky Architectural Top Bar
   -------------------------------------------------------------------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgb(var(--bg-page) / 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-color);
}

.topbar__inner {
  max-width: 1320px;
  margin: 0 auto;
  height: 60px;
  padding: 0 2.5rem;
  border-left: 1px solid var(--line-color);
  border-right: 1px solid var(--line-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 768px) {
  .topbar__inner {
    padding: 0 1.25rem;
  }
}

.brand-mark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
}

.brand-mark__serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 700;
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  color: rgb(var(--ink-strong));
}

.brand-mark__serif span {
  color: rgb(var(--brand-primary));
}

.brand-mark__tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: rgb(var(--ink-muted));
  letter-spacing: 0.06em;
}

@media (max-width: 480px) {
  .brand-mark__tag {
    display: none;
  }
}

.topbar__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  font-size: 0.84375rem;
  font-weight: 500;
  color: rgb(var(--ink-body));
}

.topbar__nav a {
  transition: color 150ms ease;
}

.topbar__nav a:hover {
  color: rgb(var(--ink-strong));
}

@media (max-width: 780px) {
  .topbar__nav {
    display: none;
  }
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.42rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid var(--line-color);
  background-color: rgb(var(--bg-surface));
  transition: border-color 150ms ease, transform 150ms ease;
}

.pill-btn:hover {
  border-color: var(--line-strong);
}

.pill-btn__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: rgb(var(--brand-primary));
}

/* --------------------------------------------------------------------------
   Act I: Asymmetric Editorial Hero + Overlapping Spatial Canvas
   -------------------------------------------------------------------------- */
.hero-pad {
  padding: 4.5rem 2.5rem 4rem;
}

@media (max-width: 768px) {
  .hero-pad {
    padding: 2.75rem 1.25rem 2.5rem;
  }
}

.index-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgb(var(--ink-muted));
  margin-bottom: 1.5rem;
}

.index-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: rgb(var(--brand-primary));
}

.hero-split-header {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 3rem;
  align-items: end;
  margin-bottom: 3.5rem;
}

@media (max-width: 980px) {
  .hero-split-header {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
  }
}

.hero-display-title {
  font-family: var(--font-display);
  font-size: clamp(2.65rem, 5.2vw, 4.4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: rgb(var(--ink-strong));
}

.hero-display-title__muted {
  color: rgb(var(--ink-muted));
  font-weight: 500;
}

/* Cosmos-inspired interactive inline visual film strip inside H1 */
.inline-film-pill {
  display: inline-flex;
  align-items: center;
  vertical-align: middle;
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  background-color: rgb(var(--bg-elevated));
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-card);
  margin: 0 0.35rem;
  transform: translateY(-4px);
  transition: transform 200ms var(--ease-out), border-color 200ms ease;
}

.inline-film-pill:hover {
  transform: translateY(-6px) scale(1.03);
  border-color: rgb(var(--brand-primary));
}

.inline-film-pill img {
  width: 44px;
  height: 30px;
  object-fit: cover;
  border-radius: 7px;
  transition: transform 200ms var(--ease-out);
}

.inline-film-pill:hover img:first-child {
  transform: rotate(-4deg) translateX(-2px);
}

.inline-film-pill:hover img:last-child {
  transform: rotate(4deg) translateX(2px);
}

.hero-aside {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-bottom: 0.25rem;
}

.hero-aside__lead {
  font-size: 1.03125rem;
  line-height: 1.68;
  color: rgb(var(--ink-body));
}

.hero-cta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.78rem 1.45rem;
  border-radius: 999px;
  background-color: rgb(var(--ink-strong));
  color: rgb(var(--bg-page));
  font-size: 0.9375rem;
  font-weight: 600;
  transition: transform 160ms var(--ease-out), opacity 160ms ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  opacity: 0.92;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.78rem 1.35rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background-color: rgb(var(--bg-surface));
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgb(var(--ink-strong));
  transition: background-color 150ms ease;
}

.btn-ghost:hover {
  background-color: rgb(var(--bg-subtle));
}

/* Linear-inspired Overlapping Spatial Stage */
.spatial-stage {
  position: relative;
  padding-left: 11%;
  padding-bottom: 1.5rem;
}

@media (max-width: 980px) {
  .spatial-stage {
    padding-left: 0;
  }
}

.spatial-stage__canvas {
  border-radius: 16px;
  padding: 8px;
  background-color: rgb(var(--bg-subtle));
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-float);
}

.spatial-stage__canvas img {
  width: 100%;
  border-radius: 11px;
  display: block;
}

.spatial-stage__float-card {
  position: absolute;
  left: 0;
  bottom: 2.25rem;
  width: 334px;
  padding: 1.15rem 1.25rem;
  border-radius: 14px;
  background-color: rgb(var(--bg-elevated) / 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-float);
  border: 1px solid var(--line-strong);
  z-index: 4;
}

@media (max-width: 980px) {
  .spatial-stage__float-card {
    position: static;
    width: 100%;
    margin-top: 1rem;
  }
}

.float-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgb(var(--ink-muted));
}

.float-card__pill {
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  background-color: rgb(var(--brand-primary) / 0.12);
  color: rgb(var(--brand-primary));
  font-weight: 600;
}

.float-card__quote {
  font-size: 0.875rem;
  line-height: 1.55;
  color: rgb(var(--ink-strong));
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.float-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.6rem;
  border-top: 1px solid var(--line-color);
  font-size: 0.75rem;
  color: rgb(var(--ink-muted));
}

.float-card__status {
  color: rgb(var(--status-pass));
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Act II: Linear-Style Editorial Manifesto + FIG 0.1 / 0.2 / 0.3 Blueprint
   -------------------------------------------------------------------------- */
.manifesto-box {
  padding: 4.5rem 2.5rem;
  border-bottom: 1px solid var(--line-color);
}

@media (max-width: 768px) {
  .manifesto-box {
    padding: 3rem 1.25rem;
  }
}

.manifesto-statement {
  max-width: 1040px;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2.7vw, 2.35rem);
  font-weight: 600;
  line-height: 1.42;
  letter-spacing: -0.02em;
  color: rgb(var(--ink-muted));
}

.manifesto-statement strong {
  color: rgb(var(--ink-strong));
  font-weight: 700;
}

.fig-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
  .fig-grid {
    grid-template-columns: 1fr;
  }
}

.fig-cell {
  padding: 2.25rem 2.5rem 2.5rem;
  border-right: 1px solid var(--line-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.fig-cell:last-child {
  border-right: none;
}

@media (max-width: 900px) {
  .fig-cell {
    border-right: none;
    border-bottom: 1px solid var(--line-color);
    padding: 2rem 1.25rem;
  }
  .fig-cell:last-child {
    border-bottom: none;
  }
}

.fig-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgb(var(--ink-muted));
}

.fig-diagram {
  height: 150px;
  margin: 1.75rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgb(var(--ink-strong));
}

.fig-diagram svg {
  width: 100%;
  max-width: 260px;
  height: 130px;
  overflow: visible;
}

.fig-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.45rem;
  color: rgb(var(--ink-strong));
}

.fig-desc {
  font-size: 0.875rem;
  line-height: 1.62;
  color: rgb(var(--ink-body));
}

/* --------------------------------------------------------------------------
   Act III: Split Header + 8/4 Director's Storyboard Desk (#storyboard)
   -------------------------------------------------------------------------- */
.section-split-head {
  padding: 4.5rem 2.5rem 3rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: end;
  border-bottom: 1px solid var(--line-color);
}

@media (max-width: 900px) {
  .section-split-head {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding: 3rem 1.25rem 2rem;
  }
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.4vw, 2.85rem);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.028em;
  color: rgb(var(--ink-strong));
}

.section-title span {
  color: rgb(var(--ink-muted));
  font-weight: 500;
}

.section-lead {
  font-size: 0.96875rem;
  line-height: 1.68;
  color: rgb(var(--ink-body));
}

.director-desk {
  display: grid;
  grid-template-columns: 1.65fr 1fr;
}

@media (max-width: 980px) {
  .director-desk {
    grid-template-columns: 1fr;
  }
}

.contact-sheet {
  padding: 2.25rem 2.5rem;
  border-right: 1px solid var(--line-color);
  background-image: radial-gradient(rgb(var(--ink-strong) / 0.08) 1px, transparent 1px);
  background-size: 20px 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 980px) {
  .contact-sheet {
    border-right: none;
    border-bottom: 1px solid var(--line-color);
    padding: 1.5rem 1.25rem;
  }
}

@media (max-width: 640px) {
  .contact-sheet {
    grid-template-columns: repeat(2, 1fr);
  }
}

.shot-tile {
  text-align: left;
  border-radius: 12px;
  padding: 0.6rem;
  background-color: rgb(var(--bg-elevated));
  border: 1.5px solid transparent;
  box-shadow: var(--shadow-card);
  transition: transform 160ms var(--ease-out), border-color 160ms ease, box-shadow 160ms ease;
}

.shot-tile:hover {
  transform: translateY(-2px);
}

.shot-tile[aria-pressed="true"] {
  border-color: rgb(var(--brand-primary));
  box-shadow: 0 0 0 3px rgb(var(--brand-primary) / 0.16), var(--shadow-card);
}

.shot-tile__img {
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  margin-bottom: 0.55rem;
  background-color: rgb(var(--bg-subtle));
}

.shot-tile__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.shot-tile__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: rgb(var(--ink-muted));
  margin-bottom: 0.25rem;
}

.shot-badge {
  padding: 0.1rem 0.44rem;
  border-radius: 999px;
  font-weight: 600;
  transition: background-color 200ms ease, color 200ms ease;
}

.shot-badge--pass {
  background-color: rgb(var(--status-pass) / 0.12);
  color: rgb(var(--status-pass));
}

.shot-badge--warn {
  background-color: rgb(var(--status-warn) / 0.15);
  color: rgb(var(--status-warn));
}

.shot-tile__name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: rgb(var(--ink-strong));
}

/* Right 4-Column Live Director Inspector */
.director-inspector {
  padding: 2.25rem;
  background-color: rgb(var(--bg-surface));
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
}

@media (max-width: 768px) {
  .director-inspector {
    padding: 1.5rem 1.25rem;
  }
}

.inspector-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line-color);
}

.inspector-head__id {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: rgb(var(--brand-primary));
}

.inspector-preview {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line-color);
  background-color: rgb(var(--bg-subtle));
}

.inspector-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: filter 220ms var(--ease-out), transform 220ms var(--ease-out);
}

.inspector-preview.is-redrawing img {
  filter: brightness(1.08) saturate(1.15);
  transform: scale(1.015);
}

.inspector-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: rgb(var(--ink-strong));
  margin-bottom: 0.45rem;
}

.inspector-note {
  padding: 0.85rem 1rem;
  border-radius: 10px;
  background-color: rgb(var(--bg-page));
  border: 1px solid var(--line-color);
  font-size: 0.84375rem;
  line-height: 1.6;
  color: rgb(var(--ink-body));
}

.inspector-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.btn-inspector-run {
  flex: 1;
  padding: 0.68rem 1rem;
  border-radius: 10px;
  background-color: rgb(var(--brand-primary));
  color: #ffffff;
  font-size: 0.84375rem;
  font-weight: 600;
  text-align: center;
  transition: opacity 150ms ease, transform 150ms ease;
}

.btn-inspector-run:hover {
  opacity: 0.92;
}

.btn-inspector-run:active {
  transform: scale(0.99);
}

.btn-inspector-reset {
  padding: 0.68rem 0.95rem;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  font-size: 0.8125rem;
  color: rgb(var(--ink-body));
}

.btn-inspector-reset:hover {
  background-color: rgb(var(--bg-subtle));
}

/* --------------------------------------------------------------------------
   Act IV: Cosmos/Rive Oversized Typographic Index + Canvas (#workflow)
   -------------------------------------------------------------------------- */
.workflow-index-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.35fr;
}

@media (max-width: 980px) {
  .workflow-index-layout {
    grid-template-columns: 1fr;
  }
}

.workflow-index-list {
  border-right: 1px solid var(--line-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

@media (max-width: 980px) {
  .workflow-index-list {
    border-right: none;
    border-bottom: 1px solid var(--line-color);
  }
}

.workflow-index-head {
  padding: 2.5rem 2.5rem 1.75rem;
  border-bottom: 1px solid var(--line-color);
}

@media (max-width: 768px) {
  .workflow-index-head {
    padding: 2rem 1.25rem 1.5rem;
  }
}

.workflow-step-btn {
  width: 100%;
  text-align: left;
  padding: 1.45rem 2.5rem;
  border-bottom: 1px solid var(--line-color);
  transition: background-color 160ms ease;
}

@media (max-width: 768px) {
  .workflow-step-btn {
    padding: 1.2rem 1.25rem;
  }
}

.workflow-step-btn:last-child {
  border-bottom: none;
}

.workflow-step-btn:hover {
  background-color: rgb(var(--bg-subtle) / 0.5);
}

.workflow-step-btn__row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.workflow-step-btn__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: rgb(var(--ink-muted));
}

.workflow-step-btn__title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: rgb(var(--ink-muted));
  transition: color 160ms ease;
}

.workflow-step-btn__desc {
  display: none;
  margin-top: 0.55rem;
  padding-left: 2.1rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgb(var(--ink-body));
}

.workflow-step-btn[aria-selected="true"] {
  background-color: rgb(var(--bg-surface));
}

.workflow-step-btn[aria-selected="true"] .workflow-step-btn__num {
  color: rgb(var(--brand-primary));
  font-weight: 600;
}

.workflow-step-btn[aria-selected="true"] .workflow-step-btn__title {
  color: rgb(var(--ink-strong));
}

.workflow-step-btn[aria-selected="true"] .workflow-step-btn__desc {
  display: block;
}

.workflow-stage-pane {
  padding: 2.5rem;
  background-color: rgb(var(--bg-subtle) / 0.45);
  background-image: radial-gradient(rgb(var(--ink-strong) / 0.08) 1px, transparent 1px);
  background-size: 20px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 768px) {
  .workflow-stage-pane {
    padding: 1.25rem;
  }
}

.workflow-stage-frame {
  border-radius: 14px;
  padding: 7px;
  background-color: rgb(var(--bg-elevated));
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-float);
  width: 100%;
}

.workflow-stage-frame img {
  width: 100%;
  border-radius: 9px;
  transition: opacity 160ms var(--ease-out);
}

.workflow-stage-frame img.is-switching {
  opacity: 0.45;
}

/* --------------------------------------------------------------------------
   Act V: Architectural Flush Split (Audio/Export + Multi-Model Matrix)
   -------------------------------------------------------------------------- */
.arch-split-two {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
}

@media (max-width: 980px) {
  .arch-split-two {
    grid-template-columns: 1fr;
  }
}

.arch-pane-left {
  padding: 3.25rem 2.5rem;
  border-right: 1px solid var(--line-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
}

@media (max-width: 980px) {
  .arch-pane-left {
    border-right: none;
    border-bottom: 1px solid var(--line-color);
    padding: 2.5rem 1.25rem;
  }
}

.layered-collage {
  position: relative;
  min-height: 250px;
  padding: 1.5rem;
  border-radius: 14px;
  background-color: rgb(var(--bg-subtle) / 0.6);
  background-image: radial-gradient(rgb(var(--ink-strong) / 0.08) 1px, transparent 1px);
  background-size: 18px 18px;
  border: 1px solid var(--line-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.layered-collage__back {
  width: 68%;
  border-radius: 10px;
  box-shadow: var(--shadow-card);
  transform: translate(-18%, -10%);
}

.layered-collage__front {
  position: absolute;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 72%;
  border-radius: 10px;
  box-shadow: var(--shadow-float);
  border: 1px solid var(--line-strong);
}

.arch-pane-right {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.arch-pane-right__head {
  padding: 3.25rem 2.5rem 2rem;
  border-bottom: 1px solid var(--line-color);
}

@media (max-width: 768px) {
  .arch-pane-right__head {
    padding: 2.5rem 1.25rem 1.5rem;
  }
}

.provider-flush-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  flex: 1;
}

@media (max-width: 540px) {
  .provider-flush-grid {
    grid-template-columns: 1fr;
  }
}

.provider-cell {
  padding: 1.4rem 2rem;
  border-right: 1px solid var(--line-color);
  border-bottom: 1px solid var(--line-color);
  display: flex;
  align-items: center;
  gap: 0.95rem;
  transition: background-color 150ms ease;
}

.provider-cell:nth-child(2n) {
  border-right: none;
}

.provider-cell:nth-last-child(-n+2) {
  border-bottom: none;
}

@media (max-width: 540px) {
  .provider-cell {
    border-right: none;
  }
  .provider-cell:nth-last-child(2) {
    border-bottom: 1px solid var(--line-color);
  }
}

.provider-cell:hover {
  background-color: rgb(var(--bg-surface));
}

.provider-cell__icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background-color: rgb(var(--bg-elevated));
  border: 1px solid var(--line-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.provider-cell__name {
  font-family: var(--font-display);
  font-size: 0.96875rem;
  font-weight: 700;
  color: rgb(var(--ink-strong));
}

.provider-cell__role {
  font-size: 0.78125rem;
  color: rgb(var(--ink-muted));
}

/* --------------------------------------------------------------------------
   Act VI: Split Docker Terminal Section (#deploy)
   -------------------------------------------------------------------------- */
.deploy-split {
  padding: 4rem 2.5rem;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 960px) {
  .deploy-split {
    grid-template-columns: 1fr;
    padding: 3rem 1.25rem;
    gap: 1.75rem;
  }
}

.terminal-card {
  border-radius: 14px;
  background-color: #111319;
  color: #F4F5F8;
  border: 1px solid rgb(255 255 255 / 0.14);
  box-shadow: var(--shadow-float);
  overflow: hidden;
}

.terminal-card__bar {
  padding: 0.65rem 1rem;
  background-color: rgb(255 255 255 / 0.04);
  border-bottom: 1px solid rgb(255 255 255 / 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #8E95A8;
}

.terminal-dots {
  display: flex;
  gap: 6px;
}

.terminal-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: rgb(255 255 255 / 0.2);
}

.terminal-copy-btn {
  padding: 0.28rem 0.75rem;
  border-radius: 6px;
  background-color: #254EDA;
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  transition: opacity 150ms ease;
}

.terminal-copy-btn:hover {
  opacity: 0.9;
}

.terminal-card__body {
  padding: 1.25rem 1.35rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.75;
  overflow-x: auto;
}

.term-line {
  display: flex;
  gap: 1rem;
  white-space: nowrap;
}

.term-line__num {
  color: #555B6E;
  user-select: none;
}

.term-line__cmd {
  color: #E5E9F0;
}

.term-line__comment {
  color: #689D6A;
}

/* --------------------------------------------------------------------------
   Minimal Architectural Footer
   -------------------------------------------------------------------------- */
.site-footer {
  max-width: 1320px;
  margin: 0 auto;
  padding: 2rem 2.5rem;
  border-left: 1px solid var(--line-color);
  border-right: 1px solid var(--line-color);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8125rem;
  color: rgb(var(--ink-muted));
}

@media (max-width: 768px) {
  .site-footer {
    padding: 1.5rem 1.25rem;
  }
}

.site-footer__links {
  display: flex;
  gap: 1.5rem;
}

.site-footer__links a:hover {
  color: rgb(var(--ink-strong));
}