/* ─── Saltups & Morozova — Design System ──────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Inter:wght@300;400;500&display=swap');

:root {
  --bg:       #ffffff;
  --text:     #0f0f0f;
  --muted:    #6b6b6b;
  --border:   #e2e2e2;
  --card:     #f5f5f5;
  --nav-h:    72px;
  --max:      1240px;
  --pad:      clamp(20px, 5vw, 64px);
  --r:        4px;
  --trans:    0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ─── Typography ────────────────────────────────────────────────────────────── */

h1, h2, h3, h4 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.display {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 6vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.section-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ─── Layout ────────────────────────────────────────────────────────────────── */

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.section {
  padding: clamp(64px, 10vw, 120px) 0;
}

.section--sm {
  padding: clamp(40px, 6vw, 72px) 0;
}

/* ─── Navigation ─────────────────────────────────────────────────────────────*/

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  overflow: visible;
  transition: background var(--trans), box-shadow var(--trans);
}

.nav.scrolled {
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.nav.dark {
  color: #fff;
}

.nav.dark.scrolled {
  color: var(--text);
}

.nav-inner {
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 40px);
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.75;
  transition: opacity var(--trans);
}

.nav-link:hover, .nav-link.active { opacity: 1; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--trans), opacity var(--trans);
}

.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4.5px, 4.5px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4.5px, -4.5px); }

/* ─── Nav dropdown ───────────────────────────────────────────────────────────*/

.nav-item-drop { position: relative; }

.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border: 1px solid var(--border);
  min-width: 240px;
  z-index: 200;
  padding: 10px 0 6px;
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}

.nav-item-drop:hover .nav-dropdown { display: block; }

.nav-dropdown li a {
  display: block;
  padding: 8px 18px;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text);
  opacity: 0.85;
  white-space: nowrap;
  text-transform: none;
}

.nav-dropdown li a:hover { opacity: 1; background: var(--card); }

.nav-item-drop > .nav-link::after { content: ' ▾'; font-size: 0.7em; }

/* Mobile nav */
.nav-mobile {
  display: none;
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: var(--bg);
  z-index: 99;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 32px;
}

.nav-mobile.open { display: flex; }

.nav-mobile a {
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* ─── Hero ──────────────────────────────────────────────────────────────────── */

.hero {
  position: relative;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.15) 50%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  width: 100%;
  padding: 0 var(--pad) clamp(40px, 7vw, 80px);
  max-width: var(--max);
  margin: 0 auto;
}

.hero-content .section-label {
  color: rgba(255,255,255,0.6);
  margin-bottom: 16px;
}

.hero-content .display {
  max-width: 800px;
}

.hero-sub {
  margin-top: 20px;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  opacity: 0.75;
  max-width: 520px;
  font-weight: 300;
}

/* ─── Project Hero (shorter, for project pages) ──────────────────────────── */

.project-hero {
  position: relative;
  height: 75vh;
  min-height: 420px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  margin-top: var(--nav-h);
}

/* ─── Breadcrumb ─────────────────────────────────────────────────────────── */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-bottom: 40px;
}

.breadcrumb a:hover { color: var(--text); }

.breadcrumb span { opacity: 0.4; }

/* ─── Project Meta ──────────────────────────────────────────────────────── */

.project-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  margin-bottom: 56px;
}

.meta-item {
  background: var(--bg);
  padding: 20px 24px;
}

.meta-label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.meta-value {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 600;
}

/* ─── Description ──────────────────────────────────────────────────────── */

.project-desc {
  max-width: 720px;
}

.project-desc h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 20px;
}

.project-desc p {
  font-size: 1.05rem;
  color: #333;
  line-height: 1.75;
  margin-bottom: 20px;
}

/* ─── Gallery ───────────────────────────────────────────────────────────── */

.gallery {
  columns: 3;
  column-gap: 12px;
  margin-top: 56px;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 12px;
  overflow: hidden;
  border-radius: var(--r);
  cursor: zoom-in;
  position: relative;
}

.gallery-item img {
  width: 100%;
  display: block;
  transition: transform 0.4s ease;
}

.gallery-item:hover img { transform: scale(1.03); }

/* ─── Project Grid (projects page & related) ────────────────────────────── */

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  display: block;
  overflow: hidden;
  border-radius: var(--r);
  background: var(--card);
}

.project-card-img {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}

.project-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-card-img img { transform: scale(1.06); }

.project-card-info {
  padding: 18px 20px 20px;
}

.project-card-title {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.project-card-meta {
  font-size: 0.78rem;
  color: var(--muted);
}

/* ─── Services Grid ──────────────────────────────────────────────────────── */

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}

.service-item {
  background: var(--bg);
  padding: clamp(28px, 4vw, 44px);
}

.service-item h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.service-item p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.7;
}

/* ─── Values ─────────────────────────────────────────────────────────────── */

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.value-item {}

.value-num {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--border);
  line-height: 1;
  margin-bottom: 16px;
}

.value-item h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.value-item p {
  font-size: 0.92rem;
  color: var(--muted);
  line-height: 1.75;
}

/* ─── Team / About ───────────────────────────────────────────────────────── */

.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 64px;
  align-items: start;
}

.person-photo {
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: var(--r);
  margin-bottom: 24px;
}

.person-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.person-name {
  font-family: 'Syne', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.person-role {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 20px;
}

.person-bio {
  font-size: 0.95rem;
  color: #333;
  line-height: 1.75;
  margin-bottom: 32px;
}

/* Timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 32px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

.timeline-date {
  color: var(--muted);
  font-weight: 500;
  padding-top: 1px;
}

.timeline-role { font-weight: 500; margin-bottom: 3px; }
.timeline-place { color: var(--muted); }

/* ─── Contact Form ──────────────────────────────────────────────────────── */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 20px;
}

.contact-info p {
  color: var(--muted);
  line-height: 1.75;
  margin-bottom: 40px;
}

.contact-detail {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-detail a {
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color var(--trans);
}

.contact-detail a:hover { color: var(--text); }

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  font: inherit;
  font-size: 0.95rem;
  background: var(--bg);
  transition: border-color var(--trans);
  outline: none;
}

.form-input:focus { border-color: var(--text); }

textarea.form-input {
  resize: vertical;
  min-height: 140px;
}

/* ─── Button ─────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: 'Syne', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--r);
  transition: all var(--trans);
}

.btn-dark {
  background: var(--text);
  color: #fff;
}

.btn-dark:hover { background: #333; }

.btn-outline {
  border: 1.5px solid var(--text);
  color: var(--text);
}

.btn-outline:hover { background: var(--text); color: #fff; }

/* ─── Divider / Horizontal rule ──────────────────────────────────────────── */

.divider {
  height: 1px;
  background: var(--border);
  margin: 0;
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */

.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  font-family: 'Syne', sans-serif;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--muted);
  transition: color var(--trans);
}

.footer-links a:hover { color: var(--text); }

.footer-copy {
  font-size: 0.78rem;
  color: var(--muted);
  width: 100%;
  margin-top: 8px;
}

/* ─── Lightbox ───────────────────────────────────────────────────────────── */

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.94);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}

.lightbox.open { display: flex; }

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 2px;
}

.lightbox-close {
  position: fixed;
  top: 20px;
  right: 24px;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  opacity: 0.7;
  transition: opacity var(--trans);
}

.lightbox-close:hover { opacity: 1; }

.lightbox-prev, .lightbox-next {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  color: #fff;
  font-size: 2.5rem;
  opacity: 0.5;
  padding: 20px;
  transition: opacity var(--trans);
}

.lightbox-prev:hover, .lightbox-next:hover { opacity: 1; }
.lightbox-prev { left: 0; }
.lightbox-next { right: 0; }

/* ─── Back link ──────────────────────────────────────────────────────────── */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
  transition: color var(--trans);
}

.back-link:hover { color: var(--text); }

/* ─── More projects strip ────────────────────────────────────────────────── */

.more-projects { background: var(--card); }

/* ─── Page top padding (for fixed nav) ─────────────────────────────────── */
.page-top { padding-top: var(--nav-h); }

/* ─── Fade-in animation ─────────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* ─── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .values-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .gallery { columns: 2; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; gap: 48px; }
  .team-grid { grid-template-columns: 1fr; gap: 48px; }
  .timeline-item { grid-template-columns: 1fr; gap: 4px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 600px) {
  .project-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .gallery { columns: 1; }
  .project-meta { grid-template-columns: repeat(2, 1fr); }
}