/* ============================================
   PORTFOLIO LAYOUT — Header, hero, project blocks, footer
   ============================================ */

/* ── Grain overlay ── */
.grain {
  position: fixed;
  inset: 0;
  z-index: var(--z-grain);
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px;
}

/* ── HEADER ── */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-header);
  padding: 1.2rem var(--page-gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: var(--c-glass);
  border-bottom: 1px solid var(--c-glass-border);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--c-text-strong);
  text-decoration: none;
}
.logo span { color: var(--c-accent-light); }

nav { display: flex; gap: 2.5rem; }

nav a {
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  text-decoration: none;
  transition: color 0.4s;
  position: relative;
}
nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c-accent);
  transition: width 0.4s var(--ease-out);
}
nav a:hover { color: var(--c-text-strong); }
nav a:hover::after { width: 100%; }
nav a.active { color: var(--c-text-strong); }
nav a.active::after { width: 100%; }

/* ── PORTFOLIO HERO ── */
.portfolio-hero {
  padding: calc(80px + var(--section-pad)) var(--page-gutter) 3rem;
}

/* ── PROJECT BLOCK ── */
.project-block {
  padding: 0 var(--page-gutter) var(--section-pad);
  border-bottom: 1px solid var(--c-line);
}
.project-block:last-child {
  border-bottom: none;
}

/* Hero image */
.project-hero-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border: 1px solid var(--c-line);
}

/* Details row — aligned right like screenshot */
.project-details {
  display: flex;
  justify-content: flex-end;
  gap: 3rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--c-line);
}

.project-detail-item {
  text-align: right;
}

.project-detail-label {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 0.25rem;
  font-style: italic;
  font-family: var(--font-heading);
}

.project-detail-value {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--c-text);
}

/* Title and description */
.project-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 2rem 0;
  gap: 4rem;
}

.project-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 400;
  color: var(--c-text-strong);
  line-height: 1.1;
}

.project-description {
  font-size: 0.9rem;
  color: var(--c-text-dim);
  line-height: 1.7;
  max-width: 500px;
}

/* Thumbnail gallery grid — 6 columns */
.project-gallery {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.5rem;
  padding: 2rem 0;
}

.gallery-thumb {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
  display: block;
  cursor: pointer;
  border: 1px solid var(--c-line);
  transition: border-color 0.3s, opacity 0.3s;
}
.gallery-thumb:hover {
  border-color: var(--c-accent);
  opacity: 0.85;
}

/* ── FOOTER ── */
footer {
  position: relative;
  z-index: var(--z-content);
  padding: 2rem var(--page-gutter);
  border-top: 1px solid var(--c-line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--c-bg);
}
footer p {
  font-size: 0.7rem;
  color: var(--c-text-dim);
  letter-spacing: 0.05em;
}