/* Page sections, top to bottom. */
/* header */
.top {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 20;
  background: rgba(14, 13, 12, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(43, 39, 35, 0.7);
}
.top .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}
.logo {
  font-family: var(--f-mono);
  font-weight: 500;
  text-decoration: none;
  font-size: 0.98rem;
  white-space: nowrap;
}
.logo b {
  color: var(--amber);
  font-weight: 500;
}
.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
}
.nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  padding: 0.6rem 0.1rem;
  transition: color 0.2s var(--ease);
}
.nav a:hover {
  color: var(--paper);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 46px;
  padding: 0.7rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition:
    transform 0.2s var(--ease),
    background-color 0.2s var(--ease),
    border-color 0.2s var(--ease),
    color 0.2s var(--ease);
  font-family: var(--f-body);
}
.btn:active {
  transform: scale(0.97);
}
.btn--solid {
  background: var(--amber);
  color: var(--on-amber);
}
.btn--solid:hover {
  background: #f7b962;
}
.btn--ghost {
  border-color: var(--line);
  color: var(--paper);
  background: rgba(23, 21, 19, 0.6);
}
.btn--ghost:hover {
  border-color: var(--muted);
}
.nav .btn {
  color: var(--on-amber);
  padding: 0.55rem 1rem;
  min-height: 42px;
}
@media (max-width: 760px) {
  .nav .hide-sm {
    display: none;
  }
}

/* hero */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: start;
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-block: 1rem clamp(3rem, 6vw, 5rem);
}
.hero h1 {
  font-size: clamp(2.4rem, 1.5rem + 3.1vw, 4.4rem);
}
.hero h1 em {
  font-style: normal;
  color: var(--amber);
}
.hero .lede {
  margin-top: 1.5rem;
}
.hero .ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}
.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  margin: 2.5rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
}
.facts li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.facts li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--steel);
}
.hero-stage {
  align-self: center;
  width: 100%;
  aspect-ratio: 1/1;
  max-width: 100%;
}
@media (max-width: 860px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
  }
  .hero-stage {
    aspect-ratio: 4/3;
    order: 2;
    margin-top: 6rem;
  }
}

/* work */
.section {
  padding-block: clamp(4rem, 10vw, 8rem);
}
.section-head {
  display: grid;
  gap: 1rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
  max-width: 820px;
}
.case {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  align-items: center;
  padding-block: clamp(2.5rem, 7vw, 6rem);
}
.case + .case {
  border-top: 1px solid var(--line);
}
.case--flip {
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
}
.case--flip .case-visual {
  order: -1;
}
.case-visual {
  display: block;
  width: 100%;
  aspect-ratio: 16/11;
  max-width: 100%;
  border-radius: 14px;
  cursor: pointer;
}
.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  align-items: center;
  margin-bottom: 1rem;
}
.case-meta .idx {
  color: var(--amber);
}
.case-meta .where {
  color: var(--muted);
}
.case p {
  color: var(--muted);
  margin-top: 1.1rem;
}
.case dl {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.55rem 1.25rem;
  margin: 1.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}
.case dt {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  padding-top: 0.2rem;
}
.case dd {
  margin: 0;
}
.visit {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.75rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--amber);
  padding-block: 0.4rem 0.15rem;
  transition: color 0.2s var(--ease);
}
.visit:hover {
  color: var(--amber);
}
.visit svg {
  width: 16px;
  height: 16px;
  transition: transform 0.2s var(--ease);
}
.visit:hover svg {
  transform: translate(2px, -2px);
}
@media (max-width: 860px) {
  .case,
  .case--flip {
    grid-template-columns: minmax(0, 1fr);
  }
  .case-visual {
    order: -1;
  }
}

/* services */
.services {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}
.svc {
  padding: clamp(1.5rem, 3.5vw, 2.75rem) clamp(0rem, 3vw, 2.5rem) clamp(1.5rem, 3.5vw, 2.75rem) 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.85rem;
  align-content: start;
}
.svc:nth-child(odd) {
  border-right: 1px solid var(--line);
}
.svc:nth-child(even) {
  padding-left: clamp(1rem, 3vw, 2.5rem);
}
.svc svg {
  width: 28px;
  height: 28px;
  color: var(--amber);
}
.svc h3 {
  font-size: var(--step-1);
  font-weight: 600;
}
.svc p {
  color: var(--muted);
}
.included {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.included span {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(23, 21, 19, 0.7);
}
.included strong {
  font-weight: 500;
  margin-right: 0.25rem;
}
@media (max-width: 700px) {
  .services {
    grid-template-columns: minmax(0, 1fr);
  }
  .svc,
  .svc:nth-child(even) {
    padding-inline: 0;
    border-right: 0;
  }
}

/* process */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 2rem);
  counter-reset: s;
}
.step {
  position: relative;
  padding-top: 2.75rem;
  display: grid;
  gap: 0.6rem;
  align-content: start;
}
.step::before {
  counter-increment: s;
  content: '0' counter(s);
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: var(--amber);
  background: var(--ink);
  padding-right: 0.75rem;
  z-index: 1;
}
.step::after {
  content: '';
  position: absolute;
  top: 0.65rem;
  left: 0;
  right: -2rem;
  height: 1px;
  background: var(--line);
}
.step:last-child::after {
  right: 0;
}
.step h3 {
  font-size: var(--step-1);
  font-weight: 600;
}
.step p {
  color: var(--muted);
  font-size: 0.98rem;
}
@media (max-width: 900px) {
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .step::after {
    right: 0;
  }
}
@media (max-width: 520px) {
  .steps {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* about */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: start;
}
.about blockquote {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 600;
  font-size: var(--step-2);
  line-height: 1.15;
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.about blockquote span {
  color: var(--amber);
}
.about .body {
  display: grid;
  gap: 1.1rem;
  color: var(--muted);
}
.about dl {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.6rem 1.25rem;
  margin: 0.75rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--paper);
}
.about dt {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  padding-top: 0.2rem;
}
.about dd {
  margin: 0;
}
@media (max-width: 820px) {
  .about {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* contact */
.contact {
  border-top: 1px solid var(--line);
}
.contact h2 {
  font-size: var(--step-4);
  max-width: 14ch;
}
.contact .lede {
  margin-top: 1.5rem;
}
.mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2.25rem;
}
.mail .addr {
  font-family: var(--f-mono);
  font-size: clamp(1rem, 0.8rem + 1.2vw, 1.5rem);
  padding: 0.75rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  user-select: all;
  overflow-wrap: anywhere;
  min-width: 0;
}
.copy-status {
  color: var(--steel);
  font-size: 0.9rem;
  min-height: 1.4em;
}
.elsewhere {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2rem;
}
.elsewhere a {
  color: var(--muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
}
.elsewhere a:hover {
  color: var(--paper);
}
.elsewhere svg {
  width: 20px;
  height: 20px;
}
footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 2rem 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

/* no-WebGL fallback: frames rendered as flat images */
.no-3d .case-visual canvas,
.no-3d .hero-stage canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
  box-shadow:
    0 30px 80px -30px rgba(242, 165, 65, 0.35),
    0 0 0 1px var(--line);
}
.no-3d .hero-stage {
  display: grid;
  place-items: center;
}