:root {
  --ink: #241c14;
  --ink-soft: #5a4a3a;
  --paper: #efe4d4;
  --paper-deep: #e2d2bb;
  --panel: #f7efe3;
  --line: rgba(36, 28, 20, 0.16);
  --accent: #c4932a;
  --accent-deep: #9a731c;
  --teal: #2f6b66;
  --teal-deep: #224e4a;
  --walnut: #1f1812;
  --white: #fff8ef;
  --danger: #8b3a3a;
  --font-display: "Syne", "Avenir Next", "Segoe UI", sans-serif;
  --font-body: "DM Sans", "Segoe UI", sans-serif;
  --nav-h: 4.75rem;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --radius-hard: 0;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(90deg, rgba(36, 28, 20, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(36, 28, 20, 0.04) 1px, transparent 1px),
    radial-gradient(ellipse 800px 500px at 100% 0%, rgba(196, 147, 42, 0.18), transparent 55%),
    radial-gradient(ellipse 700px 450px at 0% 30%, rgba(47, 107, 102, 0.12), transparent 50%);
  background-size: 48px 48px, 48px 48px, auto, auto;
  min-height: 100vh;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }

.container {
  width: min(1160px, calc(100% - 2.5rem));
  margin-inline: auto;
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(239, 228, 212, 0.92);
  border-bottom: 3px solid var(--ink);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(1160px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.brand img {
  width: 2rem;
  height: 2rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.7;
  transition: opacity 0.25s var(--ease), color 0.25s var(--ease);
}

.nav-links a:hover,
.nav-links a.active {
  opacity: 1;
  color: var(--teal-deep);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1rem;
  background: var(--accent) !important;
  color: var(--walnut) !important;
  opacity: 1 !important;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.nav-cta:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
  color: var(--walnut) !important;
}

.nav-toggle {
  display: none;
  border: 2px solid var(--ink);
  background: var(--panel);
  padding: 0.5rem 0.7rem;
  cursor: pointer;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

/* —— Hero (mid-century) —— */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
  background: var(--walnut);
}

.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(31, 24, 18, 0.88) 20%, rgba(31, 24, 18, 0.35) 55%, rgba(47, 107, 102, 0.45) 100%),
    url("/images/projects/bogaz-evi.svg") center/cover no-repeat;
  transform: scale(1.03);
  animation: heroDrift 20s var(--ease) infinite alternate;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      -18deg,
      transparent,
      transparent 40px,
      rgba(196, 147, 42, 0.07) 40px,
      rgba(196, 147, 42, 0.07) 42px
    );
  pointer-events: none;
}

.hero-ornament {
  position: absolute;
  right: 8%;
  top: 18%;
  width: min(220px, 28vw);
  aspect-ratio: 1;
  border: 3px solid var(--accent);
  z-index: 2;
  pointer-events: none;
  animation: ornamentPulse 6s var(--ease) infinite alternate;
}

.hero-ornament::before {
  content: "";
  position: absolute;
  inset: 14%;
  background: var(--teal);
  opacity: 0.85;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.hero-content {
  position: relative;
  z-index: 3;
  width: min(1160px, calc(100% - 2.5rem));
  margin: 0 auto 4.5rem;
  max-width: 40rem;
}

.hero-year {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
  animation: rise 0.8s var(--ease) both;
}

.brand-hero {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 10vw, 6.2rem);
  font-weight: 800;
  line-height: 0.9;
  margin: 0 0 1rem;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  animation: rise 0.9s 0.05s var(--ease) both;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.45rem, 3.2vw, 2.15rem);
  line-height: 1.2;
  margin: 0 0 0.85rem;
  max-width: 22ch;
  animation: rise 1s 0.12s var(--ease) both;
}

.hero p {
  margin: 0 0 1.75rem;
  max-width: 32rem;
  opacity: 0.88;
  font-size: 1.02rem;
  animation: rise 1s 0.2s var(--ease) both;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  animation: rise 1s 0.28s var(--ease) both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.25rem;
  border: 2px solid transparent;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

.btn:hover { transform: translate(-2px, -2px); }

.btn-primary {
  background: var(--accent);
  color: var(--walnut);
  border-color: var(--ink);
  box-shadow: 4px 4px 0 var(--ink);
}

.btn-primary:hover {
  background: #d4a63a;
  box-shadow: 6px 6px 0 var(--ink);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 248, 239, 0.55);
  color: var(--white);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.35);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-dark {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 4px 4px 0 var(--teal);
}

.btn-dark:hover {
  background: var(--teal-deep);
  box-shadow: 6px 6px 0 var(--accent);
}

.btn-outline {
  border-color: var(--ink);
  background: var(--panel);
  box-shadow: 3px 3px 0 var(--ink);
}

.btn-outline:hover {
  background: var(--accent);
}

/* —— Sections —— */
.section { padding: 5.25rem 0; }

.section-head {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 2.4rem;
  max-width: 38rem;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--teal);
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 750;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.03em;
}

.section-head p {
  margin: 0;
  color: var(--ink-soft);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.project-tile {
  position: relative;
  display: block;
  overflow: hidden;
  min-height: 22rem;
  background: var(--walnut);
  color: var(--white);
  border: 3px solid var(--ink);
  box-shadow: 6px 6px 0 rgba(36, 28, 20, 0.2);
}

.project-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform 0.7s var(--ease), filter 0.4s var(--ease);
  filter: saturate(0.85) contrast(1.05);
}

.project-tile:hover img {
  transform: scale(1.05);
  filter: saturate(1.05) contrast(1.08);
}

.project-tile .tile-index {
  position: absolute;
  top: 0.85rem;
  left: 0.85rem;
  z-index: 2;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  background: var(--accent);
  color: var(--walnut);
  padding: 0.35rem 0.55rem;
  border: 2px solid var(--ink);
}

.project-tile .meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.35rem;
  background: linear-gradient(transparent, rgba(18, 14, 10, 0.92));
  z-index: 1;
}

.project-tile .meta h3 {
  font-family: var(--font-display);
  font-size: 1.55rem;
  margin: 0 0 0.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.project-tile .meta span {
  font-size: 0.82rem;
  opacity: 0.85;
  letter-spacing: 0.02em;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.service-item {
  background: var(--panel);
  padding: 1.85rem 1.5rem;
  border: 3px solid var(--ink);
  box-shadow: 5px 5px 0 var(--teal);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.service-item:hover {
  transform: translate(-3px, -3px);
  box-shadow: 8px 8px 0 var(--accent);
}

.service-item h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  margin: 0 0 0.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.service-item p { margin: 0; color: var(--ink-soft); }

.strip {
  padding: 3.5rem 0;
  background: var(--teal);
  color: var(--white);
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
  position: relative;
  overflow: hidden;
}

.strip::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -40px;
  top: -50px;
  background: var(--accent);
  opacity: 0.35;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.strip-inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.strip h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0;
  font-weight: 700;
  max-width: 28rem;
  letter-spacing: -0.02em;
}

.site-footer {
  border-top: 3px solid var(--ink);
  padding: 3rem 0 2rem;
  background: var(--walnut);
  color: var(--paper);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 800;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--accent);
}

.footer-col h4 {
  margin: 0 0 0.8rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.footer-col a,
.footer-col p {
  display: block;
  margin: 0 0 0.45rem;
  color: rgba(239, 228, 212, 0.78);
}

.footer-col a:hover { color: var(--accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(239, 228, 212, 0.15);
  font-size: 0.85rem;
  color: rgba(239, 228, 212, 0.55);
}

.page-hero {
  padding: 4.25rem 0 2.25rem;
  border-bottom: 3px solid var(--ink);
  background:
    linear-gradient(90deg, var(--accent) 0 12px, transparent 12px),
    var(--paper-deep);
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  margin: 0.35rem 0 0.75rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 2rem;
}

.chip {
  padding: 0.45rem 0.9rem;
  border: 2px solid var(--ink);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--panel);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

.chip:hover,
.chip.active {
  background: var(--accent);
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--ink);
}

.project-detail-cover {
  width: 100%;
  aspect-ratio: 21/9;
  object-fit: cover;
  margin-bottom: 2.5rem;
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 var(--teal);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1.6fr 0.9fr;
  gap: 2.5rem;
}

.detail-grid h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 0 0 1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.facts {
  display: grid;
  gap: 1rem;
  padding: 1.4rem;
  background: var(--panel);
  border: 3px solid var(--ink);
  box-shadow: 5px 5px 0 var(--accent);
}

.facts dt {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}

.facts dd { margin: 0.15rem 0 0; font-size: 1.05rem; }

.form {
  display: grid;
  gap: 1rem;
  max-width: 40rem;
}

.form-row { display: grid; gap: 0.35rem; }

.form label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.form input,
.form textarea,
.form select {
  width: 100%;
  padding: 0.85rem 0.95rem;
  border: 2px solid var(--ink);
  background: var(--panel);
  outline: none;
  box-shadow: 3px 3px 0 transparent;
  transition: box-shadow 0.2s var(--ease);
}

.form input:focus,
.form textarea:focus,
.form select:focus {
  box-shadow: 3px 3px 0 var(--accent);
}

.alert {
  padding: 0.9rem 1rem;
  border: 2px solid var(--ink);
  margin-bottom: 1rem;
  box-shadow: 3px 3px 0 var(--ink);
}

.alert-success {
  background: rgba(47, 107, 102, 0.15);
}

.alert-error {
  background: rgba(139, 58, 58, 0.12);
}

.text-danger { color: var(--danger); font-size: 0.85rem; }

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: none; }
}

@keyframes heroDrift {
  from { transform: scale(1.02) translate(0, 0); }
  to { transform: scale(1.07) translate(-1.5%, 1%); }
}

@keyframes ornamentPulse {
  from { transform: rotate(0deg); }
  to { transform: rotate(8deg); }
}

@media (max-width: 960px) {
  .project-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .hero-ornament { display: none; }
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.5rem 1.25rem 1rem;
    background: var(--paper);
    border-bottom: 3px solid var(--ink);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 0.75rem 0; }
  .project-grid,
  .service-list,
  .footer-grid { grid-template-columns: 1fr; }
  .hero { min-height: 85vh; }
}