/* ============================================================
   projects.css — full Projects page.
   Banner + sector filter bar + 3-col card grid + CTA.
   Card class is `.proj-card` (NOT `.project-card`) to avoid
   collision with the homepage Featured Projects styling.
   ============================================================ */

/* ============================================================
   1) BANNER — same shape as services.css / sectors.css
   ============================================================ */

.page-banner {
  position: relative;
  min-height: 56vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  isolation: isolate;
  background: var(--color-obsidian);
  color: var(--fg-on-dark);
  padding-block: clamp(7rem, 14vh, 10rem) clamp(3rem, 6vw, 5rem);
}

.page-banner__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-banner__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  animation: page-banner-kenburns 24s var(--ease-out) infinite alternate;
}

@keyframes page-banner-kenburns {
  from { transform: scale(1.02) translate(0, 0); }
  to   { transform: scale(1.08) translate(-1.5%, -1%); }
}

.page-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 11, 0.45) 0%,
    rgba(10, 10, 11, 0.30) 35%,
    rgba(10, 10, 11, 0.78) 100%
  );
  pointer-events: none;
}

.page-banner__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 60rem;
}

.page-banner__title {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: var(--fw-display);
  font-variation-settings: "SOFT" 30, "opsz" 144;
  line-height: 1.02;
  letter-spacing: var(--tr-tight);
  color: var(--fg-on-dark);
  text-wrap: balance;
}

.page-banner__subtitle {
  font-size: clamp(1.0625rem, 0.9rem + 0.55vw, 1.3125rem);
  line-height: var(--lh-relaxed);
  color: var(--fg-on-dark-muted);
  max-width: 56ch;
}

@media (prefers-reduced-motion: reduce) {
  .page-banner__media img { animation: none; }
}

/* ============================================================
   2) PROJECTS PAGE WRAPPER
   ============================================================ */

.projects-page {
  padding-block: clamp(4rem, 8vw, 7rem);
  background: var(--bg);
}

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

/* ============================================================
   3) FILTER BAR — pill-style buttons, scrollable on mobile
   ============================================================ */

.projects-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--surface-line);
  /* On narrow screens, allow horizontal scroll instead of wrapping
     for a smoother look. */
}

.projects-filter__btn {
  appearance: none;
  background: transparent;
  border: 1px solid var(--surface-line);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: var(--fw-medium);
  padding: var(--space-2xs) var(--space-md);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color            var(--dur-fast) var(--ease-out),
    border-color     var(--dur-fast) var(--ease-out),
    transform        var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

.projects-filter__btn:hover {
  border-color: var(--color-dune);
  color: var(--color-ember);
  transform: translateY(-1px);
}

.projects-filter__btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.projects-filter__btn.is-active {
  background: var(--color-obsidian);
  color: var(--fg-on-dark);
  border-color: var(--color-obsidian);
}

/* ============================================================
   4) PROJECT GRID — uniform 3-col, responsive
   ============================================================ */

.proj-grid {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

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

@media (min-width: 1024px) {
  .proj-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ============================================================
   5) PROJECT CARD — image top, body below
   ============================================================ */

.proj-card {
  display: flex;
  flex-direction: column;
  background: var(--color-mist);
  border: 1px solid var(--surface-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  isolation: isolate;
  transition:
    transform   var(--dur-base) var(--ease-out),
    box-shadow  var(--dur-base) var(--ease-out),
    border-color var(--dur-base) var(--ease-out),
    opacity     var(--dur-base) var(--ease-out);
}

.proj-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-dune);
}

/* Filter fade-out state — applied by filter.js, removed when
   the card matches the active category. */
.proj-card[data-filter-out] {
  opacity: 0;
  transform: scale(0.97);
  pointer-events: none;
}

/* Media frame — fixed aspect so all cards line up cleanly. */
.proj-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  background: var(--color-graphite);
  overflow: hidden;
}

.proj-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--dur-slow) var(--ease-out);
}

.proj-card:hover .proj-card__media img {
  transform: scale(1.05);
}

/* Body — sector pill + title + scope */
.proj-card__body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
}

.proj-card__pill {
  align-self: flex-start;
  font-family: var(--font-sans);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tr-eyebrow);
  text-transform: uppercase;
  color: var(--color-ember);
  background: color-mix(in oklab, var(--color-dune) 22%, transparent);
  padding: 4px var(--space-sm);
  border-radius: var(--radius-pill);
}

.proj-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1rem + 0.95vw, 1.625rem);
  font-weight: var(--fw-semibold);
  font-variation-settings: "SOFT" 50, "opsz" 144;
  line-height: var(--lh-snug);
  letter-spacing: var(--tr-tight);
  color: var(--fg);
  text-wrap: balance;
}

.proj-card__scope {
  color: var(--fg);
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
}

@media (prefers-reduced-motion: reduce) {
  .proj-card,
  .proj-card__media img {
    transition: none;
  }
}

/* ============================================================
   6) CTA BAND — mirrors homepage style
   ============================================================ */

.cta-band {
  background: var(--color-obsidian);
  color: var(--fg-on-dark);
  padding-block: clamp(4rem, 8vw, 7rem);
  position: relative;
  overflow: hidden;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto auto;
  width: 36rem;
  height: 36rem;
  background: radial-gradient(
    circle at center,
    color-mix(in oklab, var(--color-dune) 35%, transparent) 0%,
    transparent 60%
  );
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.cta-band__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-xl);
}

.cta-band__title {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: var(--fw-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--tr-tight);
  color: var(--fg-on-dark);
  text-wrap: balance;
  max-width: 24ch;
}
.cta-band__title em {
  font-style: italic;
  color: var(--color-dune);
  font-variation-settings: "SOFT" 80, "opsz" 144;
}

/* ============================================================
   7) Reveal base
   ============================================================ */

[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity var(--dur-reveal) var(--ease-out),
    transform var(--dur-reveal) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
[data-reveal][data-revealed] {
  opacity: 1;
  transform: none;
}