/* ============================================================
   DEFUSION — Sections
   sections.css
   ============================================================ */

/* ── HERO ───────────────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100svh;
  background: var(--bg-dark);
  display: grid;
  grid-template-columns: 1fr 1fr;
  overflow: hidden;
}

/* WebGPU canvas fills entire hero */
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 2s var(--ease-out);
}

.hero.webgpu-active .hero__canvas {
  opacity: 1;
}

/* CSS fallback grid (shown when WebGPU unavailable) */
.hero__grid-fallback {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;

  /* Hide if WebGPU canvas is active */
  .hero.webgpu-active & {
    opacity: 0;
  }
}

.hero__inner {
  position: relative;
  z-index: var(--z-above);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-16) var(--gutter) var(--space-10);
  gap: var(--space-8);
}

.hero__content {
  max-width: 480px;
}

.hero__eyebrow {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold-dark);
  margin-bottom: var(--space-5);
  display: block;
  max-width: none;
}

.hero__headline {
  font-size: var(--text-hero);
  font-weight: var(--weight-light);
  color: var(--c-offwhite);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-hero);
  margin-bottom: var(--space-5);
}

.hero__headline em {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--accent);
}

.hero__sub {
  font-size: var(--text-sm);
  color: #7A7672;
  line-height: var(--leading-body);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-8);
  max-width: 36ch;
}

.hero__actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  gap: var(--space-8);
  padding-top: var(--space-5);
  border-top: var(--border-width) solid #2A2927;
}

.hero__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero__stat-n {
  font-size: var(--text-2xl);
  font-weight: var(--weight-light);
  color: var(--c-offwhite);
  letter-spacing: -0.02em;
  line-height: 1;
}

.hero__stat-plus {
  font-size: var(--text-lg);
  color: var(--accent);
  font-weight: var(--weight-light);
}

.hero__stat-l {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-faint);
  max-width: none;
}

.hero__scroll {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.hero__scroll-line {
  display: block;
  width: 24px;
  height: 0.5px;
  background: #4A4845;
}

.hero__scroll-text {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: #4A4845;
}

/* Hero right — schematic visual */
.hero__visual {
  position: relative;
  z-index: var(--z-above);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--gutter);
}

.hero__schematic {
  width: 100%;
  max-width: 340px;
  opacity: 0.55;
}

.hero__visual-label {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--accent);
  margin-top: var(--space-4);
}

/* ── SERVICES ───────────────────────────────────────────── */

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: var(--border-width) solid var(--border);
  max-width: var(--container);
  margin-inline: auto;
  margin-inline: auto;
  /* Note: padding-inline already applied via .section padding */
}

.service-card {
  padding: var(--space-6) var(--space-5);
  border-right: var(--border-width) solid var(--border);
  transition: background var(--duration-base) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  cursor: pointer;
}

.service-card:last-child {
  border-right: none;
}

.service-card:hover {
  background: var(--bg-tinted);
}

.service-card__num {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--accent);
  font-weight: var(--weight-regular);
}

.service-card__title {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  letter-spacing: 0.01em;
  line-height: var(--leading-snug);
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: var(--leading-body);
  flex: 1;
}

.service-card__arrow {
  font-size: var(--text-lg);
  color: var(--border);
  align-self: flex-start;
  margin-top: var(--space-3);
  transition: color var(--duration-fast), transform var(--duration-fast);
}

.service-card:hover .service-card__arrow {
  color: var(--accent);
  transform: translateX(4px);
}

/* ── PORTFOLIO ──────────────────────────────────────────── */

.portfolio__filters {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
  padding-inline: var(--gutter);
  max-width: var(--container);
  margin-inline: auto;
}

.portfolio__filter {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-muted);
  border: var(--border-width) solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 12px;
  background: transparent;
  cursor: pointer;
  transition:
    color var(--duration-fast),
    border-color var(--duration-fast),
    background var(--duration-fast);
}

.portfolio__filter:hover,
.portfolio__filter--active {
  color: var(--text-primary);
  border-color: var(--c-carbon);
  background: var(--c-white);
}

.portfolio__filter--active {
  background: var(--c-black);
  color: var(--c-offwhite);
  border-color: var(--c-black);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: 5fr 3fr;
  gap: 2px;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.portfolio-card {
  position: relative;
  overflow: hidden;
  background: var(--bg-tinted);
  cursor: pointer;
}

.portfolio-card__media {
  position: relative;
  overflow: hidden;
}

.portfolio-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
  aspect-ratio: 16 / 10;
}

.portfolio-card--featured .portfolio-card__media img {
  aspect-ratio: 16 / 9;
}

.portfolio-card:hover .portfolio-card__media img {
  transform: scale(1.03);
}

.portfolio-card__info {
  padding: var(--space-4) var(--space-5);
  background: var(--c-white);
  border-top: var(--border-width) solid var(--border);
}

.portfolio-card__cat {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: var(--space-1);
}

.portfolio-card__title {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-1);
}

.portfolio-card--featured .portfolio-card__title {
  font-size: var(--text-lg);
}

.portfolio-card__meta {
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--text-muted);
  max-width: none;
}

/* Non-featured stacked vertically */
.portfolio__grid>*:not(.portfolio-card--featured) {
  display: flex;
  flex-direction: column;
}

/* ── PROCESS ────────────────────────────────────────────── */

.process__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: var(--border-width) solid var(--border);
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.process-step {
  padding: var(--space-6) var(--space-5);
  border-right: var(--border-width) solid var(--border);
}

.process-step:last-child {
  border-right: none;
}

.process-step__num {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--accent);
  display: block;
  margin-bottom: var(--space-3);
}

.process-step__title {
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.process-step__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: var(--leading-body);
}

/* ── TESTIMONIAL ────────────────────────────────────────── */

.testimonial {
  padding-block: var(--space-12);
}

.testimonial__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-10);
  align-items: center;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.testimonial__heading {
  font-size: var(--text-2xl);
  font-weight: var(--weight-light);
  color: var(--c-offwhite);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-hero);
  max-width: none;
}

.testimonial__quote blockquote {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 300;
  font-style: italic;
  color: var(--c-mid);
  line-height: var(--leading-body);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-5);
  max-width: none;
}

.testimonial__quote figcaption {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--text-faint);
}

.testimonial__quote cite {
  font-style: normal;
  color: var(--c-gold-dark);
}

/* ── CTA ────────────────────────────────────────────────── */

.cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-top: var(--border-width) solid var(--border);
  padding-block: var(--space-16);
}

.cta .section__eyebrow {
  text-align: center;
  justify-content: center;
  display: flex;
}

.cta__title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-light);
  letter-spacing: var(--tracking-hero);
  margin-bottom: var(--space-3);
  margin-inline: auto;
}

.cta__sub {
  font-size: var(--text-base);
  color: var(--text-muted);
  margin-bottom: var(--space-8);
  margin-inline: auto;
}

.cta__actions {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── FOOTER ─────────────────────────────────────────────── */

.footer {
  background: var(--bg-dark);
  padding-top: var(--space-10);
  border-top: var(--border-width) solid #2A2927;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-bottom: var(--space-8);
  border-bottom: var(--border-width) solid #2A2927;
}

.footer__logo {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: 0.22em;
  color: var(--c-offwhite);
  display: block;
  margin-bottom: var(--space-3);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: #5A5855;
  line-height: var(--leading-body);
  letter-spacing: 0.02em;
  max-width: none;
}

.footer__tagline a {
  color: var(--c-gold-dark);
  border-bottom: 0.5px solid transparent;
  transition: border-color var(--duration-fast);
}

.footer__tagline a:hover {
  border-color: var(--c-gold-dark);
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: #4A4845;
  margin-bottom: var(--space-2);
}

.footer__col a {
  font-size: var(--text-sm);
  color: #5A5855;
  letter-spacing: 0.02em;
  transition: color var(--duration-fast);
}

.footer__col a:hover {
  color: var(--c-mid);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: var(--space-5);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: #3A3835;
}

.footer__legal {
  display: flex;
  gap: var(--space-5);
}

.footer__legal a {
  color: #3A3835;
  transition: color var(--duration-fast);
}

.footer__legal a:hover {
  color: var(--c-mid);
}

/* ── RESPONSIVE ─────────────────────────────────────────── */

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero__visual {
    display: none;
  }

  .hero__inner {
    padding-block: var(--space-16) var(--space-8);
  }

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

  .service-card:nth-child(2) {
    border-right: none;
  }

  .service-card:nth-child(1),
  .service-card:nth-child(2) {
    border-bottom: var(--border-width) solid var(--border);
  }

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

  .process-step:nth-child(2) {
    border-right: none;
  }

  .process-step:nth-child(1),
  .process-step:nth-child(2) {
    border-bottom: var(--border-width) solid var(--border);
  }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .footer__brand {
    grid-column: 1 / -1;
  }

  .testimonial__inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

@media (max-width: 640px) {
  .services__grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    border-right: none;
    border-bottom: var(--border-width) solid var(--border);
  }

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

  .portfolio__grid>*:not(.portfolio-card--featured) {
    display: block;
  }

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

  .process-step {
    border-right: none;
    border-bottom: var(--border-width) solid var(--border);
  }

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

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}