:root {
  --bg: #f4f4f8;
  --bg-elevated: #ffffff;
  --bg-soft: linear-gradient(145deg, #f9fafb, #e5e7f5);
  --text-main: #101015;
  --text-muted: #6e6e73;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.14);
  --border-soft: rgba(15, 23, 42, 0.08);
  --shadow-soft: 0 20px 45px rgba(15, 23, 42, 0.16);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-pill: 999px;
  --transition-fast: 0.25s ease;
  --max-width: 1120px;
}

body.dark {
  --bg: #020617;
  --bg-elevated: #020617;
  --bg-soft: radial-gradient(circle at 0 0, #0b1220, #020617 60%);
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --accent: #60a5fa;
  --accent-soft: rgba(96, 165, 250, 0.25);
  --border-soft: rgba(148, 163, 184, 0.35);
  --shadow-soft: 0 28px 70px rgba(0, 0, 0, 0.95);
}

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

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background: var(--bg);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
  transition: background var(--transition-fast), color var(--transition-fast);
}

img {
  display: block;
  max-width: 100%;
}

button {
  font: inherit;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: var(--max-width);
  padding: 0 16px;
  margin: 0 auto;
}

/* Header */

header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(245, 245, 247, 0.9);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

body.dark header {
  background: rgba(8, 8, 12, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-ml-wide {
  height: 32px;
  width: auto;
  display: block;
}

.logo-ml-dark {
  display: none;
}

@media (min-width: 768px) {
  .logo-ml-wide {
    height: 40px;
  }
}

/* В светлой теме показываем тёмный логотип, в тёмной — светлый */
body.dark .logo-ml-light {
  display: none;
}
body.dark .logo-ml-dark {
  display: block;
}

.logo-mark {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
}
.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.logo-sub {
  font-size: 11px;
  color: var(--text-muted);
}

nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-link {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  padding: 4px 0;
  position: relative;
  cursor: pointer;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-fast);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

body.dark .theme-switch {
  background: rgba(20, 20, 26, 0.98);
}

.theme-switch-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0%, #ffd60a, #ff9f0a);
}

body.dark .theme-switch-dot {
  background: radial-gradient(circle at 30% 0%, #0a84ff, #30d158);
}

.pill,
.pill-secondary {
  border-radius: var(--radius-pill);
  padding: 7px 14px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-decoration: none;
}

.pill {
  background: radial-gradient(circle at 0 0, rgba(255,255,255,0.3), transparent 55%), linear-gradient(135deg, #2563eb, #003bce);
  color: #fff;
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.7);
  border-radius: var(--radius-pill);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), filter var(--transition-fast);
}

.pill:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 48px rgba(15, 23, 42, 0.9);
  filter: brightness(1.04);
}

.pill-secondary {
  background: rgba(255,255,255,0.6);
  color: var(--text-main);
  border: 1px solid var(--border-soft);
  backdrop-filter: blur(18px);
}

.pill-secondary:hover {
  background: rgba(255,255,255,0.95);
}
body.dark .pill-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
}

.burger {
  display: none;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.9);
  align-items: center;
  justify-content: center;
  padding: 0;
}

body.dark .burger {
  background: rgba(15, 15, 22, 0.95);
}

.burger span {
  width: 16px;
  height: 2px;
  background: var(--text-main);
  border-radius: 999px;
  position: relative;
}

.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 999px;
  background: var(--text-main);
}

.burger span::before {
  top: -5px;
}

.burger span::after {
  top: 5px;
}

/* Hero */

main {
  flex: 1;
}

.hero {
  padding: 32px 0 40px;
  background: radial-gradient(circle at 0 0, rgba(255,255,255,0.9), rgba(243,244,246,0.9));
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.hero-text {
  max-width: 540px;
  padding: 24px 26px 26px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 26px 60px rgba(15, 23, 42, 0.16);
  backdrop-filter: blur(26px);
}

.hero h1 {
  color: var(--text-main);
}

.hero-lead {
  color: var(--text-muted);
}

body.dark .hero {
  background: radial-gradient(circle at 0 0, rgba(24, 32, 56, 0.85), #020617 60%);
}

body.dark .hero-text {
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.16), transparent 55%), rgba(15, 23, 42, 0.92);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.95);
}

body.dark .hero h1 {
  color: #f9fafb;
}

body.dark .hero-lead {
  color: #cbd5f5;
}


.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--text-muted);
  margin-bottom: 10px;
}

.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #30d158;
  box-shadow: 0 0 0 4px rgba(48, 209, 88, 0.2);
}

.hero-text h1 {
  font-size: clamp(28px, 3.6vw, 38px);
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  font-weight: 640;
}

.hero-text h1 span {
  background: linear-gradient(120deg, var(--text-main), #555);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-lead {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 500px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 10px;
}

.hero-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.hero-gallery {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-main-card {
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.hero-main-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.hero-main-info {
  padding: 10px 12px 12px;
}

.hero-main-title {
  font-size: 14px;
  font-weight: 550;
  margin-bottom: 4px;
}

.hero-main-sub {
  font-size: 12px;
  color: var(--text-muted);
}

.hero-thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.hero-thumb {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-elevated);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.06);
}

.hero-thumb img {
  height: 80px;
  width: 100%;
  object-fit: cover;
}

.hero-thumb-caption {
  font-size: 11px;
  padding: 6px 8px 8px;
  color: var(--text-muted);
}

/* Sections */

.section {
  padding: 24px 0 40px;
}


.reveal-section {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.reveal-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}


.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 18px;
}

.section-kicker {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

.section h2 {
  margin: 4px 0;
  font-size: 22px;
  letter-spacing: -0.03em;
}

.section-sub {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--text-muted);
  max-width: 420px;
}

.section-cta {
  border-radius: var(--radius-pill);
  border: none;
  background: transparent;
  padding: 7px 14px;
  font-size: 12px;
  cursor: pointer;
  color: var(--accent);
}

.grid {
  display: grid;
  gap: 14px;
}

/* Portfolio */

.portfolio-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(0, 0, 0, 0.03);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

body.dark .card {
  border-color: var(--border-soft);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 45px rgba(0, 0, 0, 0.2);
}

.card-img-wrap {
  position: relative;
  overflow: hidden;
  background: #d1d1d6;
}

.card-img-wrap img {
  width: 100%;
  height: 170px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card-img-wrap img {
  transform: scale(1.04);
}

.card-body {
  padding: 10px 12px 12px;
  font-size: 13px;
}

.card-body h3 {
  font-size: 14px;
  margin: 0 0 4px;
}

.card-body p {
  margin: 0 0 6px;
  color: var(--text-muted);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 11px;
}

.card-tags span {
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--bg-soft);
}

/* Services */

.services-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-card {
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
  padding: 12px;
  font-size: 13px;
}

.service-icon {
  width: 26px;
  height: 26px;
  border-radius: 10px;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 6px;
}

.service-card h3 {
  font-size: 14px;
  margin: 0 0 4px;
}

.service-card p {
  margin: 0;
  color: var(--text-muted);
}

/* About */

.about {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--bg-elevated), rgba(255, 255, 255, 0.96));
  box-shadow: var(--shadow-soft);
  padding: 16px;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.9fr);
  gap: 18px;
  font-size: 13px;
}

body.dark .about {
  background: radial-gradient(circle at top left, #1c1c26, #050509);
}

.about-quote {
  font-size: 14px;
  margin: 8px 0 8px;
  color: var(--text-main);
}

.about-main p {
  margin: 6px 0;
  color: var(--text-muted);
}

.about-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
}

.about-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}


.about-process {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
}

.about-process-title {
  font-size: 14px;
  margin-bottom: 8px;
}

.about-process-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.about-process-steps li {
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.about-process-steps li span {
  font-weight: 600;
  font-size: 12px;
  margin-top: 2px;
}


.about-label {
  color: var(--text-muted);
}

.about-value {
  font-weight: 500;
}

/* Contacts */

.contacts {
  border-radius: var(--radius-lg);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
  padding: 18px 16px;
}

.contacts-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 18px;
  margin-top: 14px;
}

.contacts-block {
  font-size: 13px;
}

.contact-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border-soft);
}

.contact-label {
  color: var(--text-muted);
  font-size: 12px;
}

.contact-value {
  font-weight: 500;
  font-size: 13px;
}

.lead-form {
  font-size: 13px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 14px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-soft);
  background: var(--bg-soft);
}

.contacts-main .lead-form {
  max-width: 520px;
}

.form-row {
  display: flex;
  gap: 8px;
}

.form-field {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

label {
  font-size: 12px;
  color: var(--text-muted);
}

input,
textarea {
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  padding: 8px 10px;
  font: inherit;
  background: var(--bg-soft);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(0, 113, 227, 0.4);
  background: #fff;
}

textarea {
  resize: vertical;
  min-height: 90px;
}

.form-submit {
  margin-top: 4px;
}

.form-note {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

/* Footer */

footer {
  padding: 16px 0 18px;
  font-size: 11px;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

/* Responsive */

@media (max-width: 980px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-gallery {
    order: -1;
  }

  .portfolio-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about {
    grid-template-columns: minmax(0, 1fr);
  }

  .contacts-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  nav {
    gap: 8px;
  }

  .nav-links {
    position: fixed;
    inset-inline: 14px;
    top: 58px;
    background: rgba(245, 245, 247, 0.97);
    border-radius: var(--radius-lg);
    padding: 10px 12px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
  }

  body.dark .nav-links {
    background: rgba(8, 8, 12, 0.98);
  }

  body.nav-open .nav-links {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-actions {
    display: none;
  }

  .burger {
    display: inline-flex;
  }

  .hero {
    padding-top: 20px;
  }

  .portfolio-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .services-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}


.logo-mark-ml {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 14px;
  background: radial-gradient(circle at 0 0, rgba(255,255,255,0.65), transparent 55%), var(--bg-elevated);
  box-shadow: 0 12px 30px rgba(0,0,0,0.12);
}

body.dark .logo-mark-ml {
  background: radial-gradient(circle at 0 0, rgba(255,255,255,0.08), transparent 55%), linear-gradient(145deg, #10101a, #050509);
  border-color: rgba(255,255,255,0.18);
}

.contact-row-qr .contact-label {
  align-self: flex-start;
  margin-top: 4px;
}

.contact-qr img {
  width: 120px;
  height: auto;
  border-radius: 18px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.16);
}

@media (max-width: 640px) {
  .contact-qr img {
    width: 100px;
  }
}

/* slightly softer background transitions for dark/light */
body {
  background: var(--bg);
  color: var(--text-main);
  transition: background-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.section,
.hero,
header,
footer,
.card,
.about,
.contacts-main,
.contacts-form {
  transition: background-color var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}


/* Premium hover animations */
.card,
.service-card,
.about,
.contacts-main .contacts-block,
.contacts-main .lead-form,
.hero-main-card,
.hero-thumb {
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.card:hover,
.service-card:hover,
.about:hover,
.contacts-main .contacts-block:hover,
.contacts-main .lead-form:hover,
.hero-main-card:hover,
.hero-thumb:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.45);
}

.hero-thumb:hover img,
.hero-main-card:hover img {
  transform: scale(1.02);
}

.hero-thumb img,
.hero-main-card img {
  transition: transform var(--transition-fast);
}

/* =======================
   3D / AR showcase
   ======================= */

.section-ar .section-header {
  margin-bottom: 26px;
}

.ar-content {
  display: flex;
  gap: 26px;
  align-items: stretch;
}

@media (max-width: 900px) {
  .ar-content {
    flex-direction: column;
  }
}


.ar-text {
  flex: 1 1 320px;
  font-size: 14px;
}

.ar-text h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.ar-text p {
  margin-bottom: 10px;
  line-height: 1.6;
  color: var(--text-muted);
}

.ar-benefits {
  list-style: none;
  padding: 0;
  margin: 10px 0 6px;
}

.ar-benefits li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--text-main);
}

.ar-benefits li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent);
}

.ar-note {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.ar-viewer-card {
  flex: 1 1 360px;
  border-radius: var(--radius-lg);
  padding: 14px 14px 18px;
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
}

body.dark .ar-viewer-card {
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.06), transparent 55%), #050509;
  border-color: rgba(255, 255, 255, 0.12);
}

.ar-button {
  margin-top: 12px;
  width: 100%;
  padding: 11px 18px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.85), transparent 55%), linear-gradient(135deg, #2563eb, #003bce);
  color: #fff;
  box-shadow: 0 16px 40px rgba(37, 99, 235, 0.7);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
}

.ar-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.55);
  filter: brightness(1.03);
}

.ar-button:active {
  transform: translateY(0);
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.45);
}

.ar-hint {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .ar-content {
    flex-direction: column;
  }
}
.ar-items {
  flex: 1 1 360px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.ar-item-title {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
  color: var(--text-muted);
}


/* --- Навигация: активный пункт --- */
.nav-link.nav-link-active {
  color: var(--text-main);
}

.nav-link.nav-link-active::after {
  transform: scaleX(1);
}

/* --- Лого: корректный вид в тёмной теме --- */
body.dark .logo-mark img {
  filter: invert(1);
}

/* --- 3D / AR: переключаемые проекты --- */
.ar-projects {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.ar-project-pill {
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-soft);
  padding: 6px 12px;
  font-size: 12px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.ar-project-pill:hover {
  transform: translateY(-1px);
}

.ar-project-pill.is-active {
  background: var(--accent);
  color: #ffffff;
  border-color: transparent;
}

body.dark .ar-project-pill {
  background: rgba(15, 23, 42, 0.9);
}

body.dark .ar-project-pill.is-active {
  background: var(--accent);
  color: #0b1120;
}

.ar-viewer {
  width: 100%;
  height: 260px;
  border-radius: 18px;
  overflow: hidden;
}

.ar-viewer-caption {
  margin-top: 10px;
}

.ar-viewer-caption h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.ar-viewer-caption p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- Кнопка "наверх" --- */
.scroll-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.35);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 50;
}

.scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

body.dark .scroll-top {
  background: var(--accent);
  color: #020617;
}
/* --- Header refinements & Instagram icon -------------------------------- */

body.is-scrolled header {
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.18);
}

.nav-actions .nav-instagram {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-instagram-icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-instagram-icon::before {
  content: "";
  display: block;
  width: 100%;
  height: 100%;
  mask: url("../images/instagram-icon.svg") center/contain no-repeat;
  -webkit-mask: url("../images/instagram-icon.svg") center/contain no-repeat;
  background: linear-gradient(135deg, #f97316, #ec4899, #6366f1);
}

body.dark .nav-instagram-icon::before {
  background: linear-gradient(135deg, #fb923c, #f97316, #facc15);
}

/* --- Hero: gallery & stats ---------------------------------------------- */

.hero-inner {
  align-items: stretch;
}

.hero-text {
  position: relative;
}

.hero-stats {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.hero-stat {
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.16), transparent 55%),
              rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.14);
  border: 1px solid rgba(148, 163, 184, 0.35);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

body.dark .hero-stat {
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.16), transparent 55%),
              rgba(15, 23, 42, 0.96);
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.9);
}

.stat-number {
  font-size: 30px;
  font-weight: 650;
  letter-spacing: 0.03em;
}

.stat-number::after {
  content: "+";
  opacity: 0.7;
  margin-left: 2px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
}

.hero-gallery {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 12px;
}

.hero-main-card {
  position: relative;
  border-radius: 24px;
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.18), transparent 60%),
              var(--bg-elevated);
  overflow: hidden;
  box-shadow: 0 26px 60px rgba(15, 23, 42, 0.25);
  transform-origin: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-main-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 32px 70px rgba(15, 23, 42, 0.32);
}

.hero-main-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  object-position: center bottom;
  display: block;
}

.hero-main-gradient {
  position: absolute;
  inset: auto 0 0;
  height: 42%;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
}

.hero-main-info {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  padding: 10px 12px 12px;
  border-radius: 16px;
  backdrop-filter: blur(18px);
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.78));
  color: #e5e7eb;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.8);
}

.hero-main-title {
  font-size: 15px;
  font-weight: 600;
}

.hero-main-sub {
  margin-top: 4px;
  font-size: 13px;
  opacity: 0.85;
}

.hero-thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.hero-thumb {
  position: relative;
  border-radius: 18px;
  background: var(--bg-elevated);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.14);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), filter var(--transition-fast);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.hero-thumb img {
  height: 80px;
  width: 100%;
  object-fit: cover;
  display: block;
}

.hero-thumb-caption {
  font-size: 11px;
  padding: 6px 8px 8px;
  color: var(--text-muted);
}

.hero-thumb:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.2);
  filter: saturate(1.04);
}

.hero-thumb.is-active {
  border-color: var(--accent);
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.4);
}

/* --- Portfolio filters & cards ----------------------------------------- */

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.portfolio-filter-btn {
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.4);
  padding: 6px 14px;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

body.dark .portfolio-filter-btn {
  background: rgba(15, 23, 42, 0.96);
  border-color: rgba(148, 163, 184, 0.55);
}

.portfolio-filter-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}

.portfolio-filter-btn.is-active {
  background: var(--accent);
  color: #f9fafb;
  border-color: var(--accent);
}

.portfolio-grid .card {
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast), filter var(--transition-fast);
}

.portfolio-grid .card:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 50px rgba(15, 23, 42, 0.25);
  filter: saturate(1.05);
}

.portfolio-grid .card.is-hidden {
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

/* --- Portfolio modal ---------------------------------------------------- */

body.modal-open {
  overflow: hidden;
}

.portfolio-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(15, 23, 42, 0.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 40;
}

.portfolio-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.portfolio-modal-backdrop {
  position: absolute;
  inset: 0;
}

.portfolio-modal-inner {
  position: relative;
  max-width: 1040px;
  width: 100%;
  border-radius: 26px;
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.15), transparent 55%),
              #020617;
  color: #e5e7eb;
  box-shadow: 0 35px 80px rgba(15, 23, 42, 0.9);
  padding: 20px 22px 24px;
}

.portfolio-modal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 22px;
}

.portfolio-modal-media {
  border-radius: 22px;
  overflow: hidden;
  background: #020617;
}

.portfolio-modal-media img {
  width: 100%;
  max-height: 70vh;
  object-fit: cover;
  display: block;
}

.portfolio-modal-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 4px;
}

.portfolio-modal-tags span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.5);
  font-size: 12px;
  margin-right: 6px;
  margin-bottom: 6px;
}

.portfolio-modal-cta {
  margin-top: 4px;
}

.portfolio-modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.9);
  color: #f9fafb;
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-modal-close:hover {
  background: #f9fafb;
  color: #020617;
}

/* --- Video section ------------------------------------------------------ */

.section-video .section-header {
  align-items: flex-end;
}

.video-grid {
  margin-top: 24px;
  display: grid;
  gap: 24px;
}

.video-grid--single {
  grid-template-columns: minmax(0, 1fr);
}

.video-card {
  border-radius: var(--radius-lg);
  background: var(--bg-soft);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

body.dark .video-card {
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.08), transparent 55%),
              #020617;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.9);
}

.video-card-header {
  padding: 16px 18px 0;
}

.video-card-header h3 {
  margin-bottom: 4px;
}

.video-card-header p {
  font-size: 14px;
  color: var(--text-muted);
}

.video-dual-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
  align-items: flex-start;
  padding: 10px 18px 18px;
}

.video-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: calc(var(--radius-lg) - 12px);
  background: #020617;
  max-width: 360px;
  width: 100%;
  aspect-ratio: 9 / 16;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.8);
}

.video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-label {
  position: absolute;
  left: 10px;
  top: 10px;
  padding: 4px 10px;
  font-size: 11px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.92);
  color: #e5e7eb;
}

.video-label--after {
  background: rgba(34, 197, 94, 0.9);
}

/* --- FAQ --------------------------------------------------------------- */

.section-faq .section-header {
  margin-bottom: 18px;
}

.faq-list {
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 24px 55px rgba(15, 23, 42, 0.16);
  padding: 10px 14px;
}

body.dark .faq-list {
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.12), transparent 55%),
              #020617;
}

.faq-item + .faq-item {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
}

.faq-item {
  padding: 10px 4px;
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 10px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  text-align: left;
  font-size: 14px;
}

.faq-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  position: relative;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: rgba(148, 163, 184, 0.9);
  inset: 50% 4px auto;
  height: 1px;
  transform: translateY(-50%);
}

.faq-icon::after {
  inset: 4px 50% 4px auto;
  width: 1px;
  height: auto;
  transform: translateX(-50%);
}

.faq-item.is-open .faq-icon::after {
  opacity: 0;
}

.faq-answer {
  font-size: 13px;
  color: var(--text-muted);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-item.is-open .faq-answer {
  max-height: 220px;
}

/* --- Estimate calculator ----------------------------------------------- */

.section-estimate .section-header {
  margin-bottom: 18px;
}

.estimate-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 24px;
}

.estimate-form {
  padding: 18px 18px 20px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 24px 55px rgba(15, 23, 42, 0.16);
}

body.dark .estimate-form {
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.12), transparent 55%),
              #020617;
}

.estimate-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
  font-size: 13px;
}

.estimate-field span,
.estimate-field legend {
  font-weight: 500;
}

.estimate-field select,
.estimate-field input {
  border-radius: var(--radius-md);
  border: 1px solid rgba(148, 163, 184, 0.6);
  padding: 7px 10px;
  font-size: 14px;
  background: rgba(248, 250, 252, 0.95);
}

body.dark .estimate-field select,
body.dark .estimate-field input {
  background: rgba(15, 23, 42, 0.95);
  color: #e5e7eb;
}

.estimate-options {
  display: grid;
  gap: 6px;
}

.estimate-options label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}

.estimate-submit {
  margin-top: 4px;
}

.estimate-note {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.estimate-result {
  border-radius: 24px;
  padding: 18px 18px 20px;
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
}

body.dark .estimate-result {
  background: radial-gradient(circle at 0 0, rgba(148, 163, 184, 0.08), transparent 55%),
              #020617;
}

.estimate-placeholder h3 {
  margin-bottom: 4px;
}

.estimate-output-main {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
}

.estimate-output-extra {
  font-size: 13px;
  color: var(--text-muted);
}

/* --- Responsive tweaks -------------------------------------------------- */

@media (max-width: 960px) {
  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .estimate-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .portfolio-modal-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .video-dual-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-gallery {
    grid-template-rows: auto auto;
  }

  .hero-stats {
    grid-template-columns: minmax(0, 1fr);
  }

  .portfolio-modal-inner {
    padding: 16px;
  }

  .faq-list {
    padding-inline: 10px;
  }
}

/* --- Scroll reveal animations ------------------------------------------ */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}


/* --- Hero main card: precise layout fix --------------------------------- */

.hero-main-card {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: 24px;
  overflow: hidden;
  background: var(--bg-elevated);
  box-shadow: 0 26px 60px rgba(15, 23, 42, 0.25);
  transform-origin: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hero-main-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 32px 70px rgba(15, 23, 42, 0.32);
}

.hero-main-card img {
  width: 100%;
  max-height: 360px;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: center center;
}

.hero-main-gradient {
  display: none;
}

.hero-main-info {
  position: static;
  left: auto;
  right: auto;
  bottom: auto;
  margin: 0;
  border-radius: 0;
  padding: 14px 18px 16px;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.94));
  color: #e5e7eb;
  box-shadow: none;
}

.hero-main-title {
  font-size: 15px;
  font-weight: 600;
}

.hero-main-sub {
  margin-top: 4px;
  font-size: 13px;
  opacity: 0.85;
}

/* --- Final hero main-card fix ----------------------------------------- */

.hero-inner {
  align-items: flex-start;
}

.hero-gallery {
  align-self: flex-start;
}

.hero-main-card {
  position: relative;
  display: block;
  border-radius: 24px;
  background: var(--bg-elevated);
  box-shadow: 0 26px 60px rgba(15, 23, 42, 0.25);
  overflow: hidden;
}

.hero-main-card img {
  width: 100%;
  height: auto;
  max-height: 420px;
  display: block;
  object-fit: cover;
  object-position: center center;
}

.hero-main-gradient {
  display: none !important;
}

.hero-main-info {
  position: static;
  left: auto;
  right: auto;
  bottom: auto;
  margin: 0;
  padding: 14px 18px 16px;
  border-radius: 0;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.96));
  color: #e5e7eb;
  box-shadow: none;
}

.hero-main-title {
  font-size: 15px;
  font-weight: 600;
}

.hero-main-sub {
  margin-top: 4px;
  font-size: 13px;
  opacity: 0.88;
}