/* ═══════════════════════════════════════════════
   АРТЕГО — style.css
   Палитра: бежевый фон / тёмно-синий / медь
   ═══════════════════════════════════════════════ */

:root {
  --bg:           #f2ede4;
  --bg2:          #e9e3d7;
  --bg3:          #dfd8c8;
  --surface:      #ffffff;
  --dark:         #1e2535;
  --dark2:        #252f42;
  --dark3:        #2d3a52;
  --border:       #d5cfc3;
  --border-dark:  #c7c0b2;
  --accent:       #c17a3b;
  --accent2:      #a5622a;
  --accent-line:  #d4a96a;
  --text:         #1e2535;
  --text-muted:   #5a5650;
  --text-dim:     #9a9390;
  --white:        #ffffff;
  --radius:       4px;
  --shadow:       0 4px 24px rgba(30,37,53,0.08);
  --shadow-lg:    0 8px 40px rgba(30,37,53,0.14);
  --font-display: 'Bebas Neue', sans-serif;
  --font-body:    'DM Sans', 'Geologica', sans-serif;
  --nav-h:        84px;
}

/* ─── RESET & BASE ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button { font-family: var(--font-body); cursor: pointer; }

/* ─── TYPOGRAPHY ─── */
h1, h2, h3, h4 { font-weight: 400; }

.display {
  font-family: var(--font-display);
  letter-spacing: 0.03em;
  line-height: 0.93;
}

/* ─── NAV ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 52px;
  background: rgba(30,37,53,0.97);
  backdrop-filter: blur(14px);
  border-bottom: 2px solid var(--accent);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.nav-logo img { height: 44px; width: auto; }
.nav-tagline {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-line);
  padding-left: 14px;
  border-left: 1px solid rgba(193,122,59,0.3);
  line-height: 1.5;
}

.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242,237,228,0.55);
  transition: color 0.2s;
  padding: 4px 0;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--accent-line);
  transform: scaleX(0);
  transition: transform 0.25s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--accent-line); }
.nav-links a.active::after,
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--accent);
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 500;
  transition: background 0.2s;
  white-space: nowrap;
  border: none;
}
.nav-cta:hover { background: var(--accent2); }

/* Mobile burger */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
}
.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--accent-line);
  border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-burger.open span:nth-child(2) { opacity: 0; }
.nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── PAGE WRAPPER ─── */
.page { padding-top: var(--nav-h); }

/* ─── PAGE HERO (inner pages) ─── */
.page-hero {
  background: var(--dark);
  padding: 72px 52px 64px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent, transparent 80px,
    rgba(255,255,255,0.012) 80px,
    rgba(255,255,255,0.012) 81px
  );
}
.page-hero-inner { position: relative; }
.page-hero-tag {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-line);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-hero-tag::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent-line);
  flex-shrink: 0;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 6vw, 88px);
  color: var(--bg);
  letter-spacing: 0.03em;
  line-height: 0.93;
  margin-bottom: 20px;
}
.page-hero h1 span { color: var(--accent); }
.page-hero p {
  font-size: 15px;
  color: rgba(242,237,228,0.55);
  max-width: 540px;
  line-height: 1.75;
}

/* Декоративные полоски */
.stripe-bar {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 44px;
}
.stripe-bar span {
  display: block;
  height: 2px;
  background: var(--accent-line);
  border-radius: 1px;
}
.stripe-bar span:nth-child(1) { width: 100%; opacity: 0.45; }
.stripe-bar span:nth-child(2) { width: 55%;  opacity: 0.22; }

/* ─── SECTIONS ─── */
.section { padding: 96px 52px; }
.section--dark { background: var(--dark); }
.section--bg2  { background: var(--bg2); }
.section--bg3  { background: var(--bg3); }

.section-tag {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-tag::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--accent);
  flex-shrink: 0;
}
.section-tag.on-dark { color: var(--accent-line); }
.section-tag.on-dark::before { background: var(--accent-line); }

.section-title {
  font-family: var(--font-display);
  font-size: clamp(38px, 4.5vw, 64px);
  letter-spacing: 0.03em;
  color: var(--dark);
  line-height: 0.93;
  margin-bottom: 18px;
}
.section-title.on-dark { color: var(--bg); }
.section-title span { color: var(--accent); }
.section-title.on-dark span { color: var(--accent-line); }

.section-sub {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.75;
}
.section-sub.on-dark { color: rgba(242,237,228,0.52); }

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 52px;
  flex-wrap: wrap;
  gap: 28px;
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius);
  padding: 14px 30px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--white); }
.btn-primary:hover { background: var(--accent2); }
.btn-ghost { background: none; border: 1px solid var(--border-dark); color: var(--text-muted); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost.on-dark { border-color: rgba(255,255,255,0.18); color: rgba(242,237,228,0.6); }
.btn-ghost.on-dark:hover { border-color: var(--accent-line); color: var(--accent-line); }
.btn-sm { padding: 9px 18px; font-size: 11px; }
.btn-full { width: 100%; justify-content: center; }
.btn-arrow::after { content: '→'; }

/* ─── CARDS ─── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s, box-shadow 0.25s;
}
.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.card--dark {
  background: var(--dark2);
  border-color: rgba(255,255,255,0.06);
}
.card--dark:hover {
  background: rgba(193,122,59,0.07);
  border-color: rgba(193,122,59,0.3);
}

/* ─── GRID SYSTEMS ─── */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; }
.grid-3-gap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }

.grid-bordered {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  overflow: hidden;
}
.grid-bordered-light {
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

/* ─── TAGS ─── */
.tag {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-line);
  border: 1px solid rgba(212,169,106,0.25);
  padding: 4px 10px;
  border-radius: 2px;
}
.tag.light {
  color: var(--accent);
  border-color: rgba(193,122,59,0.25);
  background: rgba(193,122,59,0.06);
}

/* ─── CONTACT ICON BOX ─── */
.contact-icon {
  width: 40px; height: 40px;
  background: var(--dark);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent-line);
}
.contact-icon.light {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent);
}

/* ─── FORM ─── */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(242,237,228,0.4);
  margin-bottom: 7px;
}
.form-group label.light { color: var(--text-dim); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius);
  padding: 13px 15px;
  color: var(--bg);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 300;
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}
.form-group input.light,
.form-group select.light,
.form-group textarea.light {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(242,237,228,0.22); }
.form-group input.light::placeholder,
.form-group textarea.light::placeholder { color: var(--text-dim); }
.form-group select option { background: var(--dark); color: var(--bg); }
.form-group select.light option { background: var(--surface); color: var(--text); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { resize: none; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-note { font-size: 11px; color: rgba(242,237,228,0.22); margin-top: 12px; line-height: 1.5; }
.form-note.light { color: var(--text-dim); }

/* ─── FOOTER ─── */
.footer {
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-top {
  display: grid;
  grid-template-columns: 280px 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 52px 48px;
}
.footer-logo img { height: 44px; width: auto; margin-bottom: 16px; }
.footer-desc { font-size: 13px; color: rgba(242,237,228,0.38); line-height: 1.7; }

.footer-col h4 {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-line);
  margin-bottom: 18px;
  font-weight: 400;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 13px;
  color: rgba(242,237,228,0.4);
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--accent-line); }
.footer-col p {
  font-size: 13px;
  color: rgba(242,237,228,0.4);
  line-height: 1.7;
  margin-bottom: 6px;
}
.footer-col a {
  font-size: 13px;
  color: rgba(242,237,228,0.4);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--accent-line); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 20px 52px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.footer-copy { font-size: 11px; color: rgba(242,237,228,0.25); }
.footer-links { display: flex; gap: 22px; }
.footer-links a {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(242,237,228,0.25);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent-line); }

/* ─── STAT BLOCKS ─── */
.stat-block {
  padding: 28px 22px;
  text-align: center;
}
.stat-val {
  font-family: var(--font-display);
  font-size: 44px;
  letter-spacing: 0.04em;
  color: var(--accent-line);
  line-height: 1;
  margin-bottom: 6px;
  display: block;
}
.stat-label {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(242,237,228,0.38);
  display: block;
}
.stat-label.light { color: var(--text-dim); }

/* ─── METRICS BAND ─── */
.metrics-band {
  background: var(--dark);
  padding: 72px 52px;
  position: relative;
  overflow: hidden;
}
.metrics-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent, transparent 80px,
    rgba(255,255,255,0.012) 80px,
    rgba(255,255,255,0.012) 81px
  );
}
.metrics-band-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
}
.metrics-band-title {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.5vw, 48px);
  color: var(--bg);
  line-height: 1;
  letter-spacing: 0.02em;
}
.metrics-band-title span { color: var(--accent-line); }
.metrics-band-grid {
  display: grid;
  grid-template-columns: repeat(3, 148px);
  gap: 2px;
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
  overflow: hidden;
}

/* ─── BREADCRUMB ─── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(242,237,228,0.35);
  margin-bottom: 28px;
}
.breadcrumb a { transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent-line); }
.breadcrumb span { color: rgba(242,237,228,0.18); }

/* ─── CTA BAND ─── */
.cta-band {
  background: var(--accent);
  padding: 64px 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-band-text h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 44px);
  color: var(--white);
  letter-spacing: 0.03em;
  line-height: 1;
  margin-bottom: 10px;
}
.cta-band-text p { font-size: 15px; color: rgba(255,255,255,0.75); }
.btn-white {
  background: var(--white);
  color: var(--accent);
  border: none;
}
.btn-white:hover { background: var(--bg); }

/* ─── ANIMATIONS ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.anim-up   { animation: fadeUp  0.6s ease both; }
.anim-in   { animation: fadeIn  0.5s ease both; }
.delay-1   { animation-delay: 0.1s; }
.delay-2   { animation-delay: 0.2s; }
.delay-3   { animation-delay: 0.35s; }
.delay-4   { animation-delay: 0.5s; }
.delay-5   { animation-delay: 0.65s; }

/* ─── GALLERY ─── */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.gallery-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--dark2);
  cursor: pointer;
}
.gallery-item svg { width: 100%; height: 100%; transition: transform 0.4s; }
.gallery-item:hover svg { transform: scale(1.04); }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30,37,53,0.85) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.3s;
  display: flex;
  align-items: flex-end;
  padding: 20px;
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-overlay-text h4 { font-size: 14px; font-weight: 500; color: var(--bg); margin-bottom: 4px; }
.gallery-overlay-text p  { font-size: 11px; color: var(--accent-line); letter-spacing: 0.08em; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(14,18,28,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.lightbox.open { opacity: 1; pointer-events: all; }
.lightbox-inner { position: relative; max-width: 860px; width: 90%; }
.lightbox-inner svg { width: 100%; border-radius: var(--radius); }
.lightbox-close {
  position: absolute;
  top: -44px; right: 0;
  background: none;
  border: none;
  color: rgba(242,237,228,0.6);
  font-size: 24px;
  cursor: pointer;
  transition: color 0.2s;
}
.lightbox-close:hover { color: var(--accent-line); }

/* Filter tabs */
.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.filter-tab {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--border-dark);
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}
.filter-tab:hover { border-color: var(--accent); color: var(--accent); }
.filter-tab.active { background: var(--accent); border-color: var(--accent); color: var(--white); }

/* ─── CALCULATOR ─── */
.calc-wrap {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}
.calc-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}
.calc-form h3 {
  font-family: var(--font-display);
  font-size: 26px;
  letter-spacing: 0.04em;
  color: var(--dark);
  margin-bottom: 6px;
}
.calc-form .calc-sub { font-size: 13px; color: var(--text-muted); margin-bottom: 28px; }

.range-group { margin-bottom: 22px; }
.range-group label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.range-group label span {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.04em;
}
input[type="range"] {
  width: 100%;
  -webkit-appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  transition: transform 0.15s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }

.calc-result {
  background: var(--dark);
  border-radius: var(--radius);
  padding: 40px;
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}
.calc-result h3 {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(242,237,228,0.4);
  margin-bottom: 28px;
  font-weight: 300;
}
.calc-price-main {
  font-family: var(--font-display);
  font-size: 52px;
  color: var(--accent-line);
  line-height: 1;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
}
.calc-price-label { font-size: 12px; color: rgba(242,237,228,0.35); margin-bottom: 28px; letter-spacing: 0.08em; }
.calc-breakdown { border-top: 1px solid rgba(255,255,255,0.07); padding-top: 24px; margin-bottom: 28px; }
.calc-breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 12px;
}
.calc-breakdown-row .label { color: rgba(242,237,228,0.45); }
.calc-breakdown-row .value { color: var(--bg); font-weight: 400; }
.calc-note { font-size: 11px; color: rgba(242,237,228,0.28); line-height: 1.6; margin-bottom: 24px; }

/* ─── TEAM CARD ─── */
.team-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.team-card:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.team-avatar {
  height: 200px;
  background: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 56px;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.team-info { padding: 22px 20px; }
.team-name { font-size: 15px; font-weight: 500; color: var(--dark); margin-bottom: 4px; }
.team-role { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }

/* ─── TIMELINE ─── */
.timeline { position: relative; padding-left: 32px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 0;
  width: 2px;
  background: var(--border);
}
.timeline-item { position: relative; margin-bottom: 36px; }
.timeline-item::before {
  content: '';
  position: absolute;
  left: -38px; top: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline-year {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--accent);
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.timeline-item h4 { font-size: 15px; font-weight: 500; color: var(--dark); margin-bottom: 4px; }
.timeline-item p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ─── ACCORDION ─── */
.accordion-item {
  border-bottom: 1px solid var(--border);
}
.accordion-item:first-child { border-top: 1px solid var(--border); }
.accordion-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  gap: 16px;
}
.accordion-toggle span {
  font-size: 15px;
  font-weight: 400;
  color: var(--dark);
  transition: color 0.2s;
}
.accordion-toggle:hover span { color: var(--accent); }
.accordion-icon {
  width: 24px; height: 24px;
  flex-shrink: 0;
  position: relative;
  color: var(--accent);
}
.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.3s;
}
.accordion-icon::before { top: 11px; left: 4px; right: 4px; height: 2px; }
.accordion-icon::after  { left: 11px; top: 4px; bottom: 4px; width: 2px; }
.accordion-item.open .accordion-icon::after { transform: scaleY(0); }
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.accordion-body-inner {
  padding: 0 0 22px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ─── REQUISITES TABLE ─── */
.req-table { width: 100%; border-collapse: collapse; }
.req-table tr { border-bottom: 1px solid var(--border); }
.req-table tr:last-child { border-bottom: none; }
.req-table td { padding: 14px 0; font-size: 14px; vertical-align: top; }
.req-table td:first-child {
  width: 220px;
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding-right: 24px;
  padding-top: 17px;
}
.req-table td:last-child { color: var(--text); font-weight: 400; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1200px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
  .calc-wrap { grid-template-columns: 1fr; }
  .calc-result { position: static; }
  .metrics-band-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 1024px) {
  .grid-2 { grid-template-columns: 1fr; gap: 48px; }
  .grid-3-gap { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .metrics-band-inner { grid-template-columns: 1fr; gap: 32px; }
}

/* ══════════════════════════════════════════════
   МОБИЛЬНАЯ ВЕРСИЯ — 768px и меньше
   ══════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root {
    --nav-h: 68px;
  }

  /* ── NAV ── */
  .nav {
    padding: 0 16px;
    height: var(--nav-h);
  }
  .nav-tagline { display: none; }
  .nav-cta     { display: none; }
  .nav-burger  { display: flex; }

  /* Мобильное меню — выезжает сверху */
  .nav-links {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(20, 28, 44, 0.99);
    backdrop-filter: blur(16px);
    flex-direction: column;
    gap: 0;
    padding: 8px 0 20px;
    z-index: 199;
    border-bottom: 2px solid var(--accent);
    box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  }
  .nav-links.open { display: flex; }
  .nav-links a {
    display: block;
    padding: 16px 24px;
    font-size: 13px;
    letter-spacing: 0.16em;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-links a::after { display: none; }
  .nav-links a.active { color: var(--accent-line); padding-left: 28px; }
  .nav-links a.active::before {
    content: '';
    display: inline-block;
    width: 8px; height: 2px;
    background: var(--accent);
    margin-right: 10px;
    vertical-align: middle;
    margin-left: -18px;
  }

  /* ── LOGO SIZE MOBILE ── */
  .nav-logo svg { height: 52px; }
  .footer-logo svg { height: 52px; }
  .hero-logo-center svg { width: 200px; height: 200px; }

  /* ── SECTIONS ── */
  .section      { padding: 56px 18px; }
  .page-hero    { padding: 44px 18px 40px; }
  .metrics-band { padding: 48px 18px; }
  .cta-band     { padding: 40px 18px; flex-direction: column; align-items: flex-start; gap: 24px; }

  /* ── PAGE HERO TEXT ── */
  .page-hero h1 { font-size: clamp(38px, 10vw, 60px); }
  .page-hero p  { font-size: 14px; }
  .breadcrumb   { font-size: 10px; }

  /* ── SECTION TITLES ── */
  .section-title { font-size: clamp(32px, 9vw, 52px); }
  .section-sub   { font-size: 14px; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 16px; }

  /* ── GRIDS → 1 колонка ── */
  .grid-2     { grid-template-columns: 1fr; gap: 36px; }
  .grid-3-gap { grid-template-columns: 1fr; }
  .grid-4     { grid-template-columns: 1fr 1fr; gap: 12px; }

  /* ── SERVICE CELLS ── */
  .grid-3.grid-bordered { grid-template-columns: 1fr; }
  .service-cell { padding: 28px 20px; }
  .service-num  { font-size: 40px; }

  /* ── GALLERY ── */
  .gallery-grid  { grid-template-columns: 1fr 1fr; gap: 2px; }
  .gallery-strip { grid-template-columns: 1fr 1fr; gap: 2px; }
  .gallery-item  { aspect-ratio: 4/3; }
  .gallery-overlay { opacity: 1; }

  /* ── CALCULATOR ── */
  .calc-wrap   { grid-template-columns: 1fr; gap: 24px; }
  .calc-result { position: static; }
  .calc-form   { padding: 24px 18px; }
  .calc-result { padding: 24px 18px; }
  .calc-price-main { font-size: 38px; }

  /* ── FORM ── */
  .form-row { grid-template-columns: 1fr; gap: 0; }

  /* ── FOOTER ── */
  .footer-top {
    grid-template-columns: 1fr;
    padding: 40px 18px 28px;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 18px;
  }
  .footer-links { flex-wrap: wrap; gap: 16px; }

  /* ── METRICS ── */
  .metrics-band-inner  { grid-template-columns: 1fr; gap: 28px; }
  .metrics-band-grid   { grid-template-columns: repeat(3, 1fr); gap: 2px; }
  .metrics-band-title  { font-size: clamp(26px, 7vw, 38px); }

  /* ── ABOUT PAGE ── */
  .about-intro  { grid-template-columns: 1fr; gap: 32px; }
  .about-visual { height: 220px; }
  .feats        { grid-template-columns: 1fr 1fr; gap: 12px; }
  .values-grid  { grid-template-columns: 1fr 1fr; gap: 12px; }
  .team-grid    { grid-template-columns: 1fr 1fr; gap: 12px; }
  .team-avatar  { height: 140px; font-size: 40px; }

  /* ── CONTACTS PAGE ── */
  .contacts-grid { grid-template-columns: 1fr; gap: 36px; }
  .form-card     { padding: 24px 18px; }
  .form-card-title { font-size: 22px; }
  .map-block     { height: 180px; }

  /* ── REQUISITES ── */
  .req-section { padding: 48px 18px; }
  .req-card    { padding: 24px 18px; }
  .req-table td:first-child { width: 130px; font-size: 10px; }
  .req-table td { font-size: 13px; }

  /* ── SERVICES PAGE ── */
  .service-detail        { grid-template-columns: 1fr; padding: 40px 18px; gap: 28px; }
  .service-detail-num    { font-size: 64px; }
  .service-detail h2     { font-size: clamp(28px, 8vw, 44px); }
  .service-card-aside    { position: static; padding: 24px 18px; }
  .faq-section           { padding: 48px 18px; }

  /* ── PORTFOLIO PAGE ── */
  .objects-section { padding: 40px 18px 56px; }
  .p-stats         { grid-template-columns: 1fr 1fr; }
  .calc-section    { padding: 40px 18px 56px; }
  .obj-card        { grid-template-columns: 1fr !important; direction: ltr !important; }
  .obj-img         { height: 220px; }
  .obj-info        { padding: 24px 18px; }
  .obj-num         { font-size: 48px; }
  .obj-title       { font-size: 26px; }
  .obj-params      { grid-template-columns: 1fr 1fr; gap: 10px; }
  .gallery-strip   { grid-template-columns: 1fr 1fr; }

  /* ── TIMELINE ── */
  .timeline-wrap { padding-left: 0; }
  .timeline      { padding-left: 24px; }
  .timeline-item::before { left: -30px; }
  .timeline::before { left: -2px; }

  /* ── ACCORDION ── */
  .accordion-toggle span { font-size: 14px; }
  .accordion-body-inner  { font-size: 13px; }

  /* ── HERO (index) ── */
  .hero-right { display: none; }
  .hero-stats { position: static; grid-template-columns: repeat(2, 1fr); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; margin-top: 32px; }
  .hero-stats .stat-block { border-right: 1px solid rgba(255,255,255,0.05); }
  .mini-stats { grid-template-columns: repeat(3, 1fr); }

  /* ── STRIPE BAR ── */
  .stripe-bar { margin-bottom: 28px; }

  /* ── BUTTONS ── */
  .btn { padding: 13px 22px; font-size: 11px; }
  .cta-band .btn { width: 100%; justify-content: center; }
}

/* ══════════════════════════════════════════════
   ОЧЕНЬ МАЛЕНЬКИЕ ЭКРАНЫ — 420px
   ══════════════════════════════════════════════ */
@media (max-width: 420px) {
  .nav-logo svg   { height: 44px; }
  .section        { padding: 44px 14px; }
  .page-hero      { padding: 36px 14px 32px; }
  .page-hero h1   { font-size: clamp(32px, 11vw, 48px); }
  .section-title  { font-size: clamp(28px, 10vw, 44px); }
  .gallery-grid   { grid-template-columns: 1fr; }
  .gallery-strip  { grid-template-columns: 1fr; }
  .feats          { grid-template-columns: 1fr; }
  .values-grid    { grid-template-columns: 1fr; }
  .team-grid      { grid-template-columns: 1fr 1fr; }
  .grid-4         { grid-template-columns: 1fr; }
  .p-stats        { grid-template-columns: 1fr 1fr; }
  .obj-params     { grid-template-columns: 1fr; }
  .metrics-band-grid { grid-template-columns: 1fr; }
  .footer-top     { padding: 32px 14px 24px; }
  .footer-bottom  { padding: 14px; }
  .form-card      { padding: 20px 14px; }
  .req-card       { padding: 20px 14px; }
  .calc-form      { padding: 20px 14px; }
  .calc-result    { padding: 20px 14px; }
  .service-detail { padding: 32px 14px; }
  .faq-section    { padding: 36px 14px; }
  .cta-band       { padding: 32px 14px; }
  .objects-section, .calc-section { padding: 32px 14px 48px; }
}

/* ══════════════════════════════════════════════
   СОВРЕМЕННЫЕ УЛУЧШЕНИЯ
   ══════════════════════════════════════════════ */

/* ── ПРОГРЕСС-БАР СКРОЛЛА ── */
#scroll-progress {
  position: fixed;
  top: 0; left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(to right, var(--accent), var(--accent-line));
  z-index: 9999;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* ── ПЛАВАЮЩАЯ КНОПКА ЗВОНКА ── */
.call-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.call-float-btn {
  width: 58px; height: 58px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(193,122,59,0.45);
  cursor: pointer;
  border: none;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
  color: #fff;
  position: relative;
}
.call-float-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(193,122,59,0.6);
}
.call-float-btn svg { width: 24px; height: 24px; }

/* Пульсирующий круг */
.call-float-btn::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0;
  animation: pulse-ring 2.5s ease-out infinite;
}
@keyframes pulse-ring {
  0%   { inset: -2px; opacity: 0.6; }
  100% { inset: -18px; opacity: 0; }
}

.call-float-label {
  background: var(--dark);
  color: var(--bg);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  opacity: 0;
  transform: translateX(8px);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.call-float:hover .call-float-label {
  opacity: 1;
  transform: translateX(0);
}

/* ── SCROLL-REVEAL АНИМАЦИИ ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1),
              transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1),
              transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1),
              transform 0.65s cubic-bezier(0.22,1,0.36,1);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

/* Задержки для каскадного появления */
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.40s; }
.reveal-delay-6 { transition-delay: 0.48s; }

/* ── СЧЁТЧИКИ ЦИФР ── */
.counter-val { display: inline-block; }

/* ── УЛУЧШЕННЫЕ HOVER НА КАРТОЧКАХ ── */
.service-cell,
.why-card,
.adv-card,
.object-card,
.feat,
.feature,
.team-card {
  transition: transform 0.25s cubic-bezier(0.22,1,0.36,1),
              border-color 0.25s,
              box-shadow 0.25s;
}
.service-cell:hover  { transform: translateY(-3px); }
.why-card:hover      { transform: translateY(-3px); }
.adv-card:hover      { transform: translateY(-3px); }
.object-card:hover   { transform: translateY(-3px); }
.feat:hover          { transform: translateY(-2px); }
.feature:hover       { transform: translateY(-2px); }
.team-card:hover     { transform: translateY(-4px); }

/* ── КУРСОР-DOT (только десктоп) ── */
@media (hover: hover) and (pointer: fine) {
  .cursor-dot {
    width: 8px; height: 8px;
    background: var(--accent);
    border-radius: 50%;
    position: fixed;
    top: 0; left: 0;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: transform 0.08s linear, opacity 0.3s;
    mix-blend-mode: normal;
  }
  .cursor-ring {
    width: 36px; height: 36px;
    border: 1.5px solid var(--accent);
    border-radius: 50%;
    position: fixed;
    top: 0; left: 0;
    pointer-events: none;
    z-index: 9997;
    transform: translate(-50%, -50%);
    transition: transform 0.18s cubic-bezier(0.22,1,0.36,1),
                width 0.2s, height 0.2s, opacity 0.3s;
    opacity: 0.5;
  }
  .cursor-ring.expand {
    width: 52px; height: 52px;
    opacity: 0.25;
  }
}

/* ── ИКОНКИ УСЛУГ ── */
.service-icon {
  width: 44px; height: 44px;
  color: var(--accent-line);
  margin-bottom: 18px;
  opacity: 0.85;
}

/* ── УЛУЧШЕННАЯ НАВИГАЦИЯ ── */
.nav {
  transition: background 0.3s, box-shadow 0.3s;
}
.nav.scrolled {
  box-shadow: 0 4px 30px rgba(0,0,0,0.35);
}

/* ── HERO PARALLAX-ТЕКСТ ── */
.hero-title-wrap { overflow: hidden; }

/* ── КНОПКА НАВЕРХ ── */
.back-to-top {
  position: fixed;
  bottom: 28px;
  left: 28px;
  width: 44px; height: 44px;
  background: var(--dark2);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s, background 0.2s;
  z-index: 499;
  color: var(--accent-line);
}
.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}
.back-to-top:hover { background: var(--accent); color: #fff; }
.back-to-top svg { width: 18px; height: 18px; }

/* ── МОБИЛЬ: кнопки позиции ── */
@media (max-width: 768px) {
  .call-float { bottom: 18px; right: 18px; }
  .call-float-btn { width: 52px; height: 52px; }
  .back-to-top { bottom: 18px; left: 18px; }
  .cursor-dot, .cursor-ring { display: none; }
}