:root {
  color-scheme: light;
  --bg-base: #f3eee1;
  --bg-surface: rgba(255, 252, 244, 0.68);
  --bg-card: rgba(254, 250, 241, 0.84);
  --bg-card-strong: rgba(255, 252, 246, 0.94);
  --line-soft: rgba(123, 112, 86, 0.14);
  --line-strong: rgba(123, 112, 86, 0.28);
  --ink-strong: #31291e;
  --ink-soft: rgba(49, 41, 30, 0.72);
  --ink-muted: rgba(49, 41, 30, 0.5);
  --accent: #2d6a61;
  --accent-soft: rgba(45, 106, 97, 0.18);
  --accent-warm: #bf7d42;
  --focus-glow: rgba(205, 140, 72, 0.32);
  --shadow-soft: 0 32px 80px rgba(74, 57, 25, 0.12);
  --shadow-card: 0 26px 70px rgba(69, 49, 16, 0.14);
  --radius-shell: 34px;
  --radius-card: 28px;
  --radius-pill: 999px;
  --page-pad: clamp(1rem, 2vw, 1.75rem);
  --layout-gap: clamp(1rem, 2vw, 1.5rem);
  --display-font: "Iowan Old Style", "Palatino Linotype", "URW Palladio L", serif;
  --ui-font: "Avenir Next", "Trebuchet MS", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.92), transparent 40%),
    radial-gradient(circle at 80% 12%, rgba(183, 213, 202, 0.5), transparent 24%),
    linear-gradient(160deg, #f8f4ea 0%, #efe7d7 52%, #ede5d9 100%);
}

body {
  margin: 0;
  min-height: 100dvh;
  color: var(--ink-strong);
  font-family: var(--ui-font);
  background: transparent;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 0%, rgba(255, 255, 255, 0.82), transparent 30%),
    radial-gradient(circle at 82% 28%, rgba(45, 106, 97, 0.12), transparent 24%),
    radial-gradient(circle at 64% 82%, rgba(191, 125, 66, 0.14), transparent 20%);
}

.aio-space {
  min-height: 100dvh;
  padding: var(--page-pad);
  display: grid;
  gap: var(--layout-gap);
}

.app-chrome {
  position: sticky;
  top: max(env(safe-area-inset-top), 0px);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  background: rgba(255, 252, 246, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 48px rgba(77, 61, 28, 0.1);
}

.brand-lockup,
.chrome-nav a,
.link-button {
  color: inherit;
  text-decoration: none;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  width: 2.6rem;
  aspect-ratio: 1;
  border-radius: 1rem;
  background:
    radial-gradient(circle at 35% 35%, rgba(255, 253, 247, 0.94), transparent 28%),
    radial-gradient(circle at 72% 72%, rgba(45, 106, 97, 0.64), transparent 32%),
    linear-gradient(145deg, #f8f2e5 0%, #d9cbb1 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    0 12px 28px rgba(70, 53, 26, 0.14);
}

.brand-copy {
  display: grid;
  line-height: 1;
}

.brand-kicker,
.eyebrow,
.dock-kicker,
.surface-kicker,
.focus-label {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--ink-muted);
}

.chrome-nav {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
}

.chrome-nav a {
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  color: var(--ink-soft);
}

.chrome-nav a:hover,
.chrome-nav a:focus-visible,
.surface-token:hover,
.surface-token:focus-visible,
.example-chip:hover,
.example-chip:focus-visible,
.ghost-button:hover,
.ghost-button:focus-visible,
.link-button:hover,
.link-button:focus-visible {
  background: rgba(255, 255, 255, 0.64);
  outline: none;
}

.chrome-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.ghost-button,
.secondary-button,
.example-chip,
.surface-token,
.link-button {
  border: 1px solid var(--line-soft);
  background: rgba(255, 252, 245, 0.62);
  color: var(--ink-strong);
  border-radius: 999px;
  padding: 0.72rem 1rem;
  font: inherit;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.ghost-button:hover,
.secondary-button:hover,
.example-chip:hover,
.surface-token:hover,
.link-button:hover,
.primary-button:hover {
  transform: translateY(-1px);
}

.voice-button[data-recording="true"] {
  border-color: rgba(45, 106, 97, 0.36);
  background: rgba(45, 106, 97, 0.14);
}

.primary-button {
  border: none;
  border-radius: 999px;
  padding: 0.9rem 1.25rem;
  font: inherit;
  color: #fffdf9;
  background: linear-gradient(135deg, #2d6a61 0%, #3d8a6f 100%);
  box-shadow: 0 18px 38px rgba(45, 106, 97, 0.24);
  cursor: pointer;
}

.space-layout {
  display: grid;
  grid-template-columns: minmax(18rem, 25rem) minmax(0, 1fr);
  gap: var(--layout-gap);
  min-height: min(90dvh, 68rem);
}

.home-column,
.scene-column {
  min-width: 0;
}

.home-column {
  display: grid;
  align-content: start;
  gap: 1.2rem;
  padding: clamp(1rem, 2vw, 1.7rem);
  border-radius: var(--radius-shell);
  border: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(255, 252, 244, 0.78), rgba(249, 244, 232, 0.62));
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-soft);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--display-font);
  font-weight: 600;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(3rem, 5vw, 5.3rem);
  line-height: 0.92;
  max-width: 10ch;
}

h2 {
  font-size: clamp(1.6rem, 2vw, 2.2rem);
}

h3 {
  font-size: clamp(1.35rem, 1.8vw, 1.7rem);
}

.lede,
.guiding-panel p,
.surface-card p,
.dock-card p,
.focus-object p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.6;
}

.signal-ribbon,
.hero-actions,
.state-grid,
.guiding-points,
.example-row,
.cue-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.signal-ribbon span,
.cue-list span {
  padding: 0.5rem 0.8rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.56);
  border: 1px solid rgba(123, 112, 86, 0.12);
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.state-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.state-box,
.guiding-panel,
.dock-card {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-card);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
}

.state-box {
  padding: 1rem;
}

.state-box dt {
  margin: 0 0 0.25rem;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
}

.state-box dd {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
}

.guiding-panel {
  padding: 1.25rem;
  display: grid;
  gap: 0.85rem;
}

.guiding-points {
  padding: 0;
  margin: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.guiding-points li {
  position: relative;
  padding-left: 1.2rem;
  color: var(--ink-soft);
}

.guiding-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-warm) 100%);
}

.scene-column {
  position: relative;
}

.space-stage {
  position: relative;
  min-height: 100%;
  overflow: hidden;
  border-radius: calc(var(--radius-shell) + 0.5rem);
  border: 1px solid var(--line-soft);
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.82), transparent 24%),
    linear-gradient(145deg, rgba(250, 245, 234, 0.94), rgba(242, 233, 217, 0.68));
  box-shadow: var(--shadow-soft);
  isolation: isolate;
}

.ambient-glow,
.ambient-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.ambient-glow-a {
  background: radial-gradient(circle at 18% 18%, rgba(255, 255, 255, 0.72), transparent 28%);
}

.ambient-glow-b {
  background:
    radial-gradient(circle at 82% 22%, rgba(45, 106, 97, 0.18), transparent 24%),
    radial-gradient(circle at 64% 76%, rgba(191, 125, 66, 0.16), transparent 18%);
  transform: translate3d(calc(var(--focus-strength, 0.24) * 8%), calc(var(--salience, 0.2) * -4%), 0);
  transition: transform 420ms ease;
}

.ambient-grid {
  background-image:
    linear-gradient(rgba(123, 112, 86, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(123, 112, 86, 0.06) 1px, transparent 1px);
  background-size: 3.75rem 3.75rem;
  mask-image: radial-gradient(circle at 50% 50%, black 32%, transparent 92%);
}

.focus-object {
  position: absolute;
  top: clamp(1.25rem, 3vw, 2rem);
  right: clamp(1.25rem, 3vw, 2rem);
  width: min(22rem, calc(100% - 2.5rem));
  padding: 1.1rem 1.2rem;
  border-radius: calc(var(--radius-card) - 0.2rem);
  border: 1px solid rgba(123, 112, 86, 0.2);
  background: rgba(255, 251, 242, 0.76);
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 48px rgba(88, 67, 28, 0.12);
  transform:
    translate3d(calc((var(--focus-strength, 0.22) - 0.2) * 32px), calc((var(--salience, 0.2) - 0.18) * -26px), 0)
    scale(calc(0.96 + var(--materialization, 0.18) * 0.08));
  transition: transform 360ms ease, box-shadow 360ms ease, background 360ms ease;
}

.capture-dock,
.surface-rail,
.surface-stage,
.insight-dock {
  position: absolute;
  left: clamp(1rem, 3vw, 2rem);
  right: clamp(1rem, 3vw, 2rem);
}

.capture-dock {
  top: clamp(8.5rem, 18vh, 10.5rem);
  padding: 1rem;
  border-radius: var(--radius-card);
  border: 1px solid rgba(123, 112, 86, 0.16);
  background: rgba(255, 252, 245, 0.68);
  backdrop-filter: blur(20px);
  box-shadow: 0 28px 60px rgba(80, 59, 20, 0.12);
}

.capture-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.capture-meta {
  display: grid;
  justify-items: end;
  gap: 0.25rem;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.voice-button {
  justify-self: end;
}

#thought-stream {
  width: 100%;
  min-height: 9.5rem;
  resize: vertical;
  border: 1px solid rgba(123, 112, 86, 0.14);
  border-radius: 1.45rem;
  padding: 1.1rem 1.1rem 1.25rem;
  font: inherit;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--ink-strong);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(255, 252, 247, 0.64));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

#thought-stream:focus-visible {
  outline: 2px solid rgba(45, 106, 97, 0.26);
  outline-offset: 3px;
}

.surface-rail {
  top: calc(clamp(8.5rem, 18vh, 10.5rem) + 15.4rem);
  display: flex;
  gap: 0.7rem;
  z-index: 2;
}

.phase-rail {
  margin-top: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.phase-chip {
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.52);
  color: var(--ink-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.surface-stage {
  top: calc(clamp(8.5rem, 18vh, 10.5rem) + 19rem);
  min-height: 20rem;
  perspective: 1400px;
}

.surface-card {
  position: absolute;
  inset: 0;
  padding: 1.3rem;
  border-radius: calc(var(--radius-card) + 0.2rem);
  border: 1px solid rgba(123, 112, 86, 0.16);
  background: var(--bg-card-strong);
  box-shadow: 0 26px 60px rgba(88, 67, 28, 0.12);
  display: grid;
  align-content: start;
  gap: 0.85rem;
  transform-origin: center center;
  opacity: 0.45;
  filter: blur(1px);
  transition:
    transform 420ms cubic-bezier(0.2, 0.7, 0.2, 1),
    opacity 320ms ease,
    filter 320ms ease,
    box-shadow 320ms ease,
    border-color 320ms ease;
}

.surface-foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.insight-dock {
  bottom: clamp(1rem, 3vw, 2rem);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.dock-card {
  padding: 1.1rem;
  display: grid;
  align-content: start;
  gap: 0.5rem;
  min-height: 9rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.aio-space[data-surface="home"] .surface-card[data-surface-card="note"] {
  transform: translate3d(-8%, 2rem, -12rem) rotateY(16deg) rotateX(4deg) scale(0.92);
}

.aio-space[data-surface="home"] .surface-card[data-surface-card="research"] {
  transform: translate3d(4%, 0.5rem, -3rem) rotateY(-8deg) scale(0.96);
  opacity: 0.72;
  filter: blur(0.5px);
}

.aio-space[data-surface="home"] .surface-card[data-surface-card="question"] {
  transform: translate3d(10%, 2.6rem, -10rem) rotateY(-16deg) rotateX(3deg) scale(0.92);
}

.aio-space[data-surface="note"] .surface-card[data-surface-card="note"],
.aio-space[data-surface="research"] .surface-card[data-surface-card="research"],
.aio-space[data-surface="question"] .surface-card[data-surface-card="question"] {
  transform: translate3d(0, 0, 0) rotateY(0deg) rotateX(0deg) scale(1);
  opacity: 1;
  filter: blur(0);
  border-color: rgba(45, 106, 97, 0.28);
  box-shadow: 0 30px 72px rgba(45, 106, 97, 0.16);
  z-index: 3;
}

.aio-space[data-surface="note"] .surface-card[data-surface-card="research"],
.aio-space[data-surface="research"] .surface-card[data-surface-card="question"],
.aio-space[data-surface="question"] .surface-card[data-surface-card="note"] {
  transform: translate3d(10%, 2rem, -8rem) rotateY(-13deg) scale(0.93);
}

.aio-space[data-surface="note"] .surface-card[data-surface-card="question"],
.aio-space[data-surface="research"] .surface-card[data-surface-card="note"],
.aio-space[data-surface="question"] .surface-card[data-surface-card="research"] {
  transform: translate3d(-8%, 2rem, -12rem) rotateY(13deg) scale(0.91);
}

.aio-space[data-surface="note"] .surface-token[data-surface-target="note"],
.aio-space[data-surface="research"] .surface-token[data-surface-target="research"],
.aio-space[data-surface="question"] .surface-token[data-surface-target="question"] {
  border-color: rgba(45, 106, 97, 0.34);
  background: rgba(45, 106, 97, 0.12);
}

.aio-space[data-canonical-state="capturing"] .capture-dock,
.aio-space[data-canonical-state="materializing"] .capture-dock {
  border-color: rgba(45, 106, 97, 0.3);
  box-shadow: 0 32px 72px rgba(45, 106, 97, 0.16);
}

.aio-space[data-phase="capture"] .phase-chip[data-phase-chip="capture"],
.aio-space[data-phase="interpret"] .phase-chip[data-phase-chip="interpret"],
.aio-space[data-phase="materialize"] .phase-chip[data-phase-chip="materialize"],
.aio-space[data-phase="confirm_continue"] .phase-chip[data-phase-chip="confirm_continue"] {
  border-color: rgba(45, 106, 97, 0.34);
  background: rgba(45, 106, 97, 0.12);
  color: var(--ink-strong);
}

.aio-space[data-alive="false"] .ambient-glow-b,
.aio-space[data-alive="false"] .focus-object {
  filter: saturate(0.85);
}

@media (max-width: 1100px) {
  .space-layout {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .scene-column {
    min-height: 72rem;
  }
}

@media (max-width: 820px) {
  .app-chrome {
    border-radius: 1.5rem;
    flex-wrap: wrap;
  }

  .chrome-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.15rem;
  }

  .focus-object {
    position: relative;
    top: auto;
    right: auto;
    margin: 1rem 1rem 0;
    width: auto;
  }

  .capture-dock,
  .surface-rail,
  .surface-stage,
  .insight-dock {
    left: 1rem;
    right: 1rem;
  }

  .capture-dock {
    top: 12.5rem;
  }

  .surface-rail {
    top: 29.5rem;
    overflow-x: auto;
  }

  .surface-stage {
    top: 33rem;
    min-height: 21rem;
  }

  .insight-dock {
    top: 56rem;
    bottom: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .aio-space {
    padding:
      max(0.85rem, env(safe-area-inset-top))
      max(0.85rem, env(safe-area-inset-right))
      max(1rem, env(safe-area-inset-bottom))
      max(0.85rem, env(safe-area-inset-left));
  }

  h1 {
    font-size: clamp(2.5rem, 13vw, 3.4rem);
  }

  .state-grid {
    grid-template-columns: 1fr;
  }

  .scene-column {
    min-height: 77rem;
  }

  .capture-heading,
  .surface-foot {
    flex-direction: column;
    align-items: start;
  }

  .surface-stage {
    min-height: 23rem;
  }

  .surface-card {
    padding: 1.15rem;
  }

  .insight-dock {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0ms !important;
  }
}