/* AETHOS — futuristic AI-era branding studio (fictional, own IP)
   Hand-coded, no framework, no build. Design tokens + non-sectional stage shell. */

/* Self-hosted, latin-subset (see build/get_fonts.py + subset_fonts.py). */
@font-face { font-family: "Space Grotesk"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/spacegrotesk-500.woff2") format("woff2"); }
@font-face { font-family: "Space Grotesk"; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/spacegrotesk-700.woff2") format("woff2"); }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/inter-400.woff2") format("woff2"); }
@font-face { font-family: "Space Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/spacemono-400.woff2") format("woff2"); }

:root {
  /* Ink / surface */
  --ink:        #08090c;
  --ink-2:      #0d0f15;
  --ink-3:      #12151d;
  --bone:       #eceef2;
  --bone-dim:   #9aa0ad;
  --bone-faint: #6b7280;
  --line:       rgba(255, 255, 255, 0.08);
  --line-2:     rgba(255, 255, 255, 0.14);

  /* Plasma accent — reserved for the field + key marks, never body text */
  --plasma-a: #7c5cff; /* violet */
  --plasma-b: #29e0d6; /* cyan-teal */
  --plasma-c: #ff5ca8; /* hot node (field only) */
  --accent:   #35e1d4; /* AA-legible on ink for large marks/CTA */
  --link:     #a99bff;

  /* Type */
  --f-display: "Space Grotesk", "SF Pro Display", "Segoe UI", system-ui, sans-serif;
  --f-body:    "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono:    "Space Mono", ui-monospace, "SFMono-Regular", "Cascadia Mono", monospace;

  /* Rhythm */
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --ease:   cubic-bezier(0.22, 1, 0.36, 1); /* ease-out expo-ish */
  --dur:    0.42s;

  --z-field: 0;
  --z-stage: 10;
  --z-hud:   40;
  --z-over:  100;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scrollbar-gutter: stable; }

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--f-display); font-weight: 700; line-height: 1.02; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 1px; }
/* Headings receive programmatic focus on view change (for screen readers);
   they are non-interactive, so never show a visible ring on them. */
#stage .view [tabindex="-1"] { outline: none; }

/* ---- The signal field (generative canvas behind everything) ---- */
#field {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-field);
  display: block;
  /* Static fallback so a paint exists before/without JS and under reduced-motion */
  background:
    radial-gradient(120% 90% at 78% 12%, rgba(124, 92, 255, 0.22), transparent 55%),
    radial-gradient(90% 80% at 12% 88%, rgba(41, 224, 214, 0.16), transparent 55%),
    var(--ink);
}
/* Vignette + grain overlay to seat the field and add depth */
.field-veil {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(130% 100% at 50% 40%, transparent 40%, rgba(8, 9, 12, 0.55) 100%);
}

/* ---- HUD: persistent chrome, not a traditional header ---- */
.hud {
  position: fixed;
  z-index: var(--z-hud);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bone-dim);
}
.hud--top { top: 0; left: 0; right: 0; padding: clamp(1rem, 3vw, 1.6rem) var(--gutter); justify-content: space-between; }
.hud--foot { bottom: 0; left: 0; right: 0; padding: clamp(0.9rem, 2.5vw, 1.4rem) var(--gutter); justify-content: space-between; }

.wordmark {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--bone);
  padding-left: 0.34em; /* balance the tracking */
}
.wordmark b { color: var(--accent); font-weight: 700; }

.status { display: inline-flex; align-items: center; gap: 0.5rem; }
.status .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(53, 225, 212, 0.6);
  animation: pulse 2.6s var(--ease) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(53, 225, 212, 0.5); }
  70%  { box-shadow: 0 0 0 7px rgba(53, 225, 212, 0); }
  100% { box-shadow: 0 0 0 0 rgba(53, 225, 212, 0); }
}

/* ---- Orbital nav: spatial view switcher, always present ---- */
.orbital {
  position: fixed;
  z-index: var(--z-hud);
  right: var(--gutter);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  align-items: flex-end;
}
.orbital button {
  appearance: none;
  background: none;
  border: 0;
  padding: 0.3rem 0;
  cursor: pointer;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bone-dim);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  transition: color var(--dur) var(--ease);
}
.orbital button .tick {
  width: 22px; height: 1px; background: var(--line-2);
  transition: width var(--dur) var(--ease), background var(--dur) var(--ease);
}
.orbital button:hover { color: var(--bone); }
.orbital button:hover .tick { width: 34px; background: var(--bone-dim); }
.orbital button[aria-current="true"] { color: var(--bone); }
.orbital button[aria-current="true"] .tick { width: 48px; background: var(--accent); }

/* ---- Stage + views (in-place switch, no vertical section stack) ---- */
#stage {
  position: relative;
  z-index: var(--z-stage);
  min-height: 100dvh;
}
.view {
  min-height: 100dvh;
  padding: clamp(6rem, 14vh, 9rem) var(--gutter) clamp(4.5rem, 10vh, 7rem);
  display: none;
}
.view.is-active { display: block; animation: viewIn var(--dur) var(--ease) both; }
@keyframes viewIn {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: none; }
}

/* Kicker / eyebrow label */
.kicker {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
}
.kicker::before { content: ""; width: 26px; height: 1px; background: var(--accent); opacity: 0.7; }

/* ---- INDEX view ---- */
.index-wrap {
  max-width: 1180px;
  min-height: calc(100dvh - 22rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-type {
  font-size: clamp(2.6rem, 8.4vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-weight: 700;
  text-transform: uppercase;
}
.hero-type .row { display: block; overflow: hidden; white-space: nowrap; }
.hero-type .row > span { display: inline-block; }
.hero-type em {
  font-style: normal;
  background: linear-gradient(100deg, var(--plasma-a), var(--plasma-b) 60%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lede {
  margin-top: clamp(1.2rem, 3vh, 2rem);
  max-width: 52ch;
  font-size: clamp(1rem, 1.9vw, 1.22rem);
  color: var(--bone-dim);
  line-height: 1.5;
}
.hero-cta {
  margin-top: clamp(1.5rem, 3.5vh, 2.3rem);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  --pad: 1.05rem 1.9rem;
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: var(--pad);
  border: 1px solid var(--line-2);
  color: var(--bone);
  cursor: pointer;
  background: none;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.btn:hover { border-color: var(--accent); color: var(--bone); }
.btn--solid {
  border-color: transparent;
  color: var(--ink);
  background: var(--accent);
}
.btn--solid:hover { background: #5cf0e4; }
.btn .arrow { transition: transform var(--dur) var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* index micro-metrics row */
.metrics {
  margin-top: clamp(1.75rem, 4.5vh, 2.75rem);
  display: flex;
  gap: clamp(1.5rem, 5vw, 4rem);
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
}
.metric .n { font-family: var(--f-display); font-size: clamp(1.4rem, 3vw, 2.1rem); font-weight: 500; }
.metric .l { font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--bone-dim); }

/* ---- Section heading shared ---- */
.view-head { max-width: 900px; margin-bottom: clamp(2.5rem, 7vh, 4.5rem); }
.view-head h2 { font-size: clamp(2.2rem, 6vw, 4.4rem); }
.view-head p { margin-top: 1.4rem; max-width: 52ch; color: var(--bone-dim); font-size: clamp(1rem, 1.6vw, 1.15rem); }

/* ---- WORK view: spatial project grid ---- */
.work-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(0.75rem, 1.5vw, 1.25rem);
}
.work-card {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-2), var(--ink));
  padding: clamp(1.4rem, 2.5vw, 2.2rem);
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.work-card::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(120% 120% at 85% 0%, rgba(124, 92, 255, 0.18), transparent 60%);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.work-card:hover { border-color: var(--line-2); transform: translateY(-4px); }
.work-card:hover::before { opacity: 1; }
.work-card .idx { font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.16em; color: var(--bone-dim); }
.work-card h3 { font-size: clamp(1.3rem, 2.5vw, 1.9rem); margin: 0.5rem 0 0.4rem; position: relative; }
.work-card .tag { font-family: var(--f-mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); position: relative; }
.work-card.col-7 { grid-column: span 7; }
.work-card.col-5 { grid-column: span 5; }
.work-card.col-6 { grid-column: span 6; }
.work-card.col-4 { grid-column: span 4; }
.work-card.col-8 { grid-column: span 8; }
.work-card.tall { min-height: 340px; }

/* ---- CAPABILITIES view ---- */
.cap-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: clamp(1rem, 2vw, 1.75rem); }
.cap {
  border-top: 1px solid var(--line-2);
  padding-top: 1.4rem;
}
.cap .num { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.16em; color: var(--accent); }
.cap h3 { font-size: clamp(1.25rem, 2.4vw, 1.7rem); margin: 0.7rem 0 0.7rem; }
.cap p { color: var(--bone-dim); font-size: 0.98rem; }

/* ---- STUDIO view ---- */
.studio-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.studio-lede { font-family: var(--f-display); font-weight: 500; font-size: clamp(1.5rem, 3.2vw, 2.6rem); line-height: 1.15; letter-spacing: -0.02em; }
.studio-lede em { font-style: normal; color: var(--accent); }
.studio-body { color: var(--bone-dim); display: flex; flex-direction: column; gap: 1.1rem; }
.studio-body p { font-size: 1.02rem; }

/* ---- CONTACT view ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.contact-lede h2 { font-size: clamp(2.4rem, 7vw, 5rem); }
.contact-lede p { margin-top: 1.4rem; color: var(--bone-dim); max-width: 34ch; }
.contact-meta { margin-top: 2.5rem; display: flex; flex-direction: column; gap: 1rem; font-family: var(--f-mono); font-size: 0.82rem; letter-spacing: 0.06em; }
.contact-meta a:hover { color: var(--accent); }

form.signal-form { display: flex; flex-direction: column; gap: 1.35rem; }
.field-row { display: flex; flex-direction: column; gap: 0.5rem; }
.field-row label { font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--bone-dim); }
.field-row input, .field-row textarea, .field-row select {
  background: var(--ink-2);
  border: 1px solid var(--line-2);
  color: var(--bone);
  font-family: var(--f-body);
  font-size: 1rem;
  padding: 0.95rem 1rem;
  border-radius: 2px;
  transition: border-color var(--dur) var(--ease);
}
.field-row input:focus, .field-row textarea:focus, .field-row select:focus { outline: none; border-color: var(--accent); }
.field-row textarea { resize: vertical; min-height: 120px; }
.field-row .err { color: #ff8fb0; font-size: 0.78rem; min-height: 1em; }
.form-note { font-size: 0.78rem; color: var(--bone-faint); }
.form-status { font-family: var(--f-mono); font-size: 0.8rem; letter-spacing: 0.08em; min-height: 1.2em; }
.form-status[data-state="ok"] { color: var(--accent); }
.form-status[data-state="err"] { color: #ff8fb0; }

/* ---- Responsive ---- */
/* Desktop: reserve a right-hand lane so content never runs under the orbital nav. */
@media (min-width: 901px) {
  .view { padding-right: clamp(11rem, 4vw + 8rem, 13.5rem); }
}
@media (max-width: 900px) {
  .orbital { top: auto; bottom: 0; right: 0; left: 0; transform: none;
    flex-direction: row; justify-content: center; gap: 1.1rem;
    padding: 0.9rem var(--gutter) calc(0.9rem + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, transparent, rgba(8,9,12,0.9) 40%);
    backdrop-filter: blur(6px);
  }
  .orbital button .tick { display: none; }
  .hud--foot { display: none; }
  .work-card.col-7, .work-card.col-5, .work-card.col-6, .work-card.col-4, .work-card.col-8 { grid-column: span 12; }
  .studio-grid, .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .metrics { gap: 1.25rem 2rem; }
}

/* ---- Reduced motion: kill the field + view transitions, keep it legible ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .view.is-active { animation: none; }
}