*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #fafaf7;
  --bg2: #f2f2ec;
  --ink: #111110;
  --ink-dim: #555550;
  --ink-faint: #999990;
  --accent: #1a6647;
  --accent-light: #268a5e;
  --rule: rgba(26, 102, 71, 0.15);
  --font-display: "Cormorant Garamond", Georgia, serif;
  --font-mono: "DM Mono", monospace;
  --font-body: "Geologica", sans-serif;
  --pad-x: clamp(1.5rem, 6vw, 6rem);
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 200;
  overflow-x: hidden;
  cursor: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.025'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9998;
  opacity: 0.5;
}

.cursor {
  position: fixed;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.18s, height 0.18s, opacity 0.18s;
}
.cursor.large {
  width: 36px;
  height: 36px;
  opacity: 0.22;
}

/* ─── NAV ─── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem var(--pad-x);
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
nav::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--rule);
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink);
  text-decoration: none;
}
.nav-back {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.25s;
}
.nav-back:hover {
  color: var(--accent);
}
.nav-back::before {
  content: "←";
  font-size: 0.85rem;
}

/* ─────────────────────────────────────────────
      PROJECT HERO
      ───────────────────────────────────────────── */
.project-hero {
  padding: 9rem var(--pad-x) 5.5rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
  align-items: end;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.project-hero::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: var(--pad-x);
  width: 56px;
  height: 2px;
  background: var(--accent);
}

.project-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.8rem;
  opacity: 0;
  animation: slideUp 0.7s 0.2s forwards;
}
.project-title {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 7vw, 6.2rem);
  font-weight: 300;
  line-height: 0.97;
  letter-spacing: -0.025em;
  margin-bottom: 1.8rem;
  opacity: 0;
  animation: slideUp 0.85s 0.35s forwards;
}
.project-title em {
  font-style: italic;
  color: var(--accent);
}
.project-summary {
  font-size: 1.02rem;
  line-height: 1.88;
  color: var(--ink-dim);
  max-width: 480px;
  opacity: 0;
  animation: slideUp 0.85s 0.5s forwards;
}

.hero-right {
  display: flex;
  flex-direction: column;
  opacity: 0;
  animation: fadeIn 1s 0.7s forwards;
}
.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--rule);
}
.meta-row:first-child {
  border-top: 1px solid var(--rule);
}
.meta-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}
.meta-value {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 400;
  color: var(--ink);
  text-align: right;
}
.meta-tags {
  display: flex;
  gap: 0.4rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}
.meta-tag {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
  border: 1px solid var(--rule);
  padding: 0.2rem 0.6rem;
}

/* ─── COVER IMAGE ─── */
.project-cover {
  width: 100%;
  aspect-ratio: 16/7;
  background: var(--bg2);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--rule);
}

.project-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* ─────────────────────────────────────────────
      CONTENT LAYOUT
      ───────────────────────────────────────────── */
.project-content {
  display: grid;
  grid-template-columns: 1fr 2.8fr;
  align-items: start;
}

.content-sidebar {
  padding: 2.5rem 0 2.5rem var(--pad-x);
  border-right: 1px solid var(--rule);
  position: sticky;
  top: 5rem;
  align-self: start;
}
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 1.5rem;
}
.sidebar-link {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  text-decoration: none;
  padding: 0.55rem 0.75rem;
  border-left: 2px solid transparent;
  transition: color 0.22s, border-color 0.22s;
}
.sidebar-link:hover,
.sidebar-link.active {
  color: var(--accent);
  border-left-color: var(--accent);
}
.sidebar-links-external {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  border-top: 1px solid var(--rule);
  padding-top: 1.2rem;
}
.ext-link {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-dim);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.22s;
}
.ext-link:hover {
  color: var(--accent);
}
.ext-link .ext-icon {
  font-size: 0.85rem;
}

.content-main {
  padding: 4.5rem clamp(2rem, 5vw, 5rem) 7rem;
}

.content-section {
  margin-bottom: 5.5rem;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.75s ease, transform 0.75s ease;
  scroll-margin-top: 6rem;
}
.content-section.visible {
  opacity: 1;
  transform: none;
}

.content-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.content-label::after {
  content: "";
  flex: 1;
  max-width: 40px;
  height: 1px;
  background: var(--accent);
  opacity: 0.35;
}
.content-heading {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 1.8rem;
  letter-spacing: -0.015em;
}
.content-heading em {
  font-style: italic;
  color: var(--accent);
}
.content-body {
  font-size: 0.96rem;
  line-height: 1.95;
  color: var(--ink-dim);
}
.content-body p {
  margin-bottom: 1.3rem;
}
.content-body strong {
  color: var(--ink);
  font-weight: 400;
}

.content-body ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: 1rem 0 1.3rem;
}
.content-body ul li {
  font-size: 0.96rem;
  line-height: 1.75;
  color: var(--ink-dim);
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
}
.content-body ul li::before {
  content: "·";
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  flex-shrink: 0;
}

.content-body h3 {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 2rem 0 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rule);
}

a {
  color: var(--accent);
  text-decoration: underline;
}

/* ─── Demo video link ─── */
.demo-link {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.8rem 2rem;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  background: var(--bg2);
  text-decoration: none;
  margin: 2.5rem 0;
  transition: background 0.25s, border-color 0.25s;
}
.demo-link:hover {
  background: var(--bg);
  border-color: var(--accent);
}
.demo-link__label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  white-space: nowrap;
}
.demo-link__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 300;
  font-style: italic;
  color: var(--ink);
  flex: 1;
}
.demo-link__arrow {
  font-size: 1.2rem;
  color: var(--accent);
  transition: transform 0.22s;
}
.demo-link:hover .demo-link__arrow {
  transform: translateX(5px);
}

/* ─── IMAGE GRID ─── */
.image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2.5rem 0;
}
.image-grid.wide {
  grid-template-columns: 1fr;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.image-grid img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
}

.img-caption {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin-top: 0.5rem;
}

/* ─── CALLOUT / PULL QUOTE ─── */
.callout {
  border-left: 2px solid var(--accent);
  padding: 1rem 0 1rem 1.8rem;
  margin: 2.5rem 0;
}
.callout p {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-style: italic;
  font-weight: 300;
  color: var(--ink);
  line-height: 1.5;
  margin: 0;
}

/* ─── METRICS ─── */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 2.5rem 0;
}
.metric-cell {
  background: var(--bg);
  padding: 1.8rem;
  text-align: center;
}
.metric-num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}
.metric-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ─── NEXT PROJECT ─── */
.next-project {
  border-top: 1px solid var(--rule);
  padding: 4.5rem var(--pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-decoration: none;
  transition: background 0.28s;
}
.next-project:hover {
  background: var(--bg2);
}
.next-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
.next-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 300;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.next-arrow {
  font-size: 2.2rem;
  color: var(--accent);
  transition: transform 0.3s;
}
.next-project:hover .next-arrow {
  transform: translateX(8px);
}

/* ─── FOOTER ─── */
footer {
  padding: 2rem var(--pad-x);
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
footer p {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}

/* ─── ANIMATIONS ─── */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  nav {
    padding: 1.2rem 1.5rem;
  }
  nav::after {
    left: 0;
    right: 0;
  }
  .project-hero {
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 7.5rem 1.5rem 3.5rem;
  }
  .project-cover {
    aspect-ratio: 4/3;
  }
  .project-content {
    grid-template-columns: 1fr;
  }
  .content-sidebar {
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--rule);
    padding: 1.5rem;
  }
  .sidebar-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.2rem;
    margin-bottom: 1rem;
  }
  .sidebar-link {
    border-left: none;
    border-bottom: 2px solid transparent;
    padding: 0.4rem 0.6rem;
  }
  .sidebar-link:hover,
  .sidebar-link.active {
    border-left-color: transparent;
    border-bottom-color: var(--accent);
  }
  .sidebar-links-external {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1rem;
  }
  .content-main {
    padding: 2.5rem 1.5rem 4.5rem;
  }
  .image-grid {
    grid-template-columns: 1fr;
  }
  .metrics-row {
    grid-template-columns: 1fr 1fr;
  }
  .next-project {
    padding: 3rem 1.5rem;
  }
  footer {
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .project-hero {
    padding: 6.5rem 1rem 3rem;
  }
  .content-main {
    padding: 2rem 1rem 3.5rem;
  }
  .next-project {
    padding: 2rem 1rem;
  }
  .metrics-row {
    grid-template-columns: 1fr;
  }
}