/* ======================================================
   ВАРИАНТ C — «Swiss-минимализм» (Фото-ориентированный)
   Палитра: только #FFFFFF, #0A0A0A, #7A7A7A, #E5E5E5, #F24D20
   ====================================================== */

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

/* === RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Helvetica Neue', sans-serif;
  background: #FFFFFF;
  color: #0A0A0A;
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

:root {
  --white: #FFFFFF;
  --black: #0A0A0A;
  --gray: #7A7A7A;
  --line: #E5E5E5;
  --accent: #F24D20;
}

/* === HEADER === */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 64px;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 64px;
  transition: background 0.3s, backdrop-filter 0.3s;
}
.site-header.scrolled {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-logo img { width: 28px; height: 28px; }
.header-logo-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--black);
  letter-spacing: -0.01em;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 0;
}
.header-nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--black);
  opacity: 0.6;
  padding: 0 16px;
  transition: opacity 0.2s;
  position: relative;
}
.header-nav a::after {
  content: '·';
  position: absolute;
  right: -3px;
  opacity: 0.3;
}
.header-nav a:last-child::after { display: none; }
.header-nav a:hover { opacity: 1; }
.header-cta {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  transition: opacity 0.2s;
}
.header-cta:hover { opacity: 0.7; }
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 20px; height: 1px;
  background: var(--black);
}

/* === HERO === */
.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  overflow: hidden;
}
.hero-inner {
  display: grid;
  grid-template-columns: 60fr 40fr;
  width: 100%;
  height: 100%;
}
.hero-left {
  padding: 0 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-left h1 {
  font-size: clamp(36px, 7vw, 96px);
  font-weight: 500;
  line-height: 1.0;
  letter-spacing: -0.04em;
  color: var(--black);
  margin-bottom: 32px;
  max-width: 680px;
}
.hero-subtitle {
  font-size: 16px;
  color: var(--gray);
  max-width: 440px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.hero-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--black);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.hero-link:hover { color: var(--accent); border-color: var(--accent); }
.hero-right {
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.hero-logo-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.hero-logo-block img {
  width: 80px; height: 80px;
  filter: brightness(0) invert(1);
}
.hero-logo-block .logo-name {
  font-size: 28px;
  font-weight: 500;
  color: #fff;
  letter-spacing: -0.02em;
}
.hero-logo-block .logo-sub {
  font-size: 12px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-align: center;
}

/* === SERVICES === */
.services {
  padding: 160px 64px;
  border-top: 1px solid var(--line);
}
.section-tag {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 64px;
}
.service-row {
  display: grid;
  grid-template-columns: 100px 1fr 2fr 80px;
  align-items: center;
  gap: 40px;
  padding: 48px 0;
  border-top: 1px solid var(--line);
  cursor: pointer;
  transition: background 0.3s;
}
.service-row:last-child { border-bottom: 1px solid var(--line); }
.service-row:hover {
  background: var(--accent);
  margin: 0 -64px;
  padding-left: 64px;
  padding-right: 64px;
}
.service-row:hover .service-num,
.service-row:hover .service-name,
.service-row:hover .service-desc,
.service-row:hover .service-arrow {
  color: #fff;
}
.service-num {
  font-size: 64px;
  font-weight: 300;
  color: var(--line);
  line-height: 1;
  transition: color 0.3s;
}
.service-name {
  font-size: 32px;
  font-weight: 500;
  color: var(--black);
  letter-spacing: -0.02em;
  transition: color 0.3s;
}
.service-desc {
  font-size: 15px;
  color: var(--gray);
  line-height: 1.7;
  transition: color 0.3s;
}
.service-arrow {
  font-size: 24px;
  color: var(--gray);
  text-align: right;
  transition: color 0.3s;
}

/* === OBJECTS === */
.objects { padding: 160px 64px; border-top: 1px solid var(--line); }
.object-item { margin-bottom: 200px; }
.object-item:last-child { margin-bottom: 0; }
.object-counter {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.object-photo {
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  margin-bottom: 48px;
}
.object-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: filter 0.4s;
}
.object-photo img:hover { filter: grayscale(0); }
.object-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
}
.object-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.object-desc {
  font-size: 16px;
  color: var(--gray);
  line-height: 1.7;
}
.object-facts {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.fact-row {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
  font-size: 14px;
}
.fact-label { color: var(--gray); }
.fact-value { font-weight: 500; }

/* === STATS === */
.stats { padding: 160px 64px; border-top: 1px solid var(--line); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 80px;
}
.stat-item { padding: 0 40px; }
.stat-item:first-child { padding-left: 0; }
.stat-num {
  font-size: clamp(48px, 9vw, 120px);
  font-weight: 300;
  color: var(--black);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.4;
}

/* === LETTER === */
.letter { padding: 160px 64px; border-top: 1px solid var(--line); }
.letter-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.letter-img { max-width: 600px; width: 100%; }
.letter-img img { width: 100%; }
.letter-caption {
  font-size: 13px;
  color: var(--gray);
  text-align: center;
}

/* === STAGES === */
.stages { padding: 160px 64px; border-top: 1px solid var(--line); }
.stages-list { margin-top: 80px; padding-left: 40px; border-left: 1px solid var(--line); }
.stage-item {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 40px;
  align-items: start;
}
.stage-item:first-child { padding-top: 0; }
.stage-num {
  font-size: 14px;
  color: var(--gray);
  font-weight: 500;
  padding-top: 4px;
}
.stage-title {
  font-size: 24px;
  font-weight: 500;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}
.stage-desc { font-size: 15px; color: var(--gray); line-height: 1.7; }

/* === CONTACTS === */
.contacts { padding: 160px 64px; border-top: 1px solid var(--line); }
.contacts-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-top: 80px;
}
.form-group { margin-bottom: 32px; position: relative; }
.form-group label {
  position: absolute;
  top: 0; left: 0;
  font-size: 14px;
  color: var(--gray);
  transition: transform 0.2s, font-size 0.2s, color 0.2s;
  pointer-events: none;
}
.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label,
.form-group select:focus ~ label {
  transform: translateY(-20px);
  font-size: 11px;
  color: var(--accent);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  color: var(--black);
  outline: none;
  transition: border-color 0.2s, border-width 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-bottom: 2px solid var(--accent);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group input::placeholder,
.form-group textarea::placeholder { opacity: 0; }
.btn-text-submit {
  background: none;
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 500;
  color: var(--black);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.btn-text-submit .arrow { color: var(--accent); }
.btn-text-submit:hover { color: var(--accent); border-color: var(--accent); }
.contact-detail { margin-bottom: 24px; }
.contact-detail .label { font-size: 13px; color: var(--gray); margin-bottom: 4px; }
.contact-detail .value { font-size: 16px; font-weight: 500; }
.map-placeholder {
  margin-top: 32px;
  width: 100%;
  height: 320px;
  background: var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--gray);
}

/* === FOOTER === */
.site-footer {
  padding: 0 64px 32px;
  border-top: 1px solid var(--line);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px 0;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-logo img { width: 24px; height: 24px; }
.footer-copy { font-size: 13px; color: var(--gray); }
.footer-nav { display: flex; gap: 24px; }
.footer-nav a { font-size: 13px; color: var(--gray); transition: color 0.2s; }
.footer-nav a:hover { color: var(--black); }

/* === ANIMATIONS === */
.fade-in {
  opacity: 0;
  transition: opacity 0.6s ease-out;
}
.fade-in.visible { opacity: 1; }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .site-header, .hero-left { padding-left: 40px; padding-right: 40px; }
  section, .services, .objects, .stats, .letter, .stages, .contacts, .site-footer {
    padding-left: 40px;
    padding-right: 40px;
  }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 48px; }
  .service-row { grid-template-columns: 80px 1fr 1fr; }
  .service-row:hover { margin: 0 -40px; padding-left: 40px; padding-right: 40px; }
}
@media (max-width: 768px) {
  .site-header { padding: 0 20px; }
  .header-nav { display: none; }
  .header-cta { display: none; }
  .menu-toggle { display: flex; }
  .header-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: var(--white);
    padding: 20px 24px 28px;
    gap: 14px;
    border-bottom: 1px solid var(--line);
    z-index: 90;
  }
  .hero { min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-right {
    display: flex;
    width: 100%;
    height: 96px;
    order: -1;
  }
  .hero-left { padding: 48px 20px 64px; }
  .services, .objects, .stats, .letter, .stages, .contacts, .site-footer {
    padding-left: 20px;
    padding-right: 20px;
    padding-top: 80px;
    padding-bottom: 80px;
  }
  .service-row { grid-template-columns: 1fr; gap: 12px; }
  .service-row:hover { margin: 0 -24px; padding-left: 24px; padding-right: 24px; }
  .service-arrow { display: none; }
  .object-cols { grid-template-columns: 1fr; }
  .contacts-inner { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 16px; text-align: center; }
  .stats-grid { grid-template-columns: 1fr; gap: 32px; }
}