.subpage {
  min-height: 100vh;
  background: #03070b;
}

.subpage .page {
  background:
    radial-gradient(circle at 78% 12%, rgba(8,124,255,.16), transparent 22%),
    radial-gradient(circle at 12% 66%, rgba(85,183,255,.08), transparent 24%),
    #03070b;
}

.subpage .site-header,
.subpage .site-header.is-visible,
.subpage .is-visible.site-header,
.subpage .is-visible .site-header {
  position: fixed !important;
  margin: 0 !important;
  top: 14px !important;
  left: clamp(18px, 3vw, 42px) !important;
  right: clamp(18px, 3vw, 42px) !important;
  width: auto !important;
  background: rgba(3,7,11,.74) !important;
  border-color: rgba(255,255,255,.10) !important;
  box-shadow: 0 14px 46px rgba(0,0,0,.36) !important;
  backdrop-filter: blur(18px) !important;
}

.subpage .nav a.active {
  color: #fff;
  opacity: 1;
}

.subpage-main {
  padding-top: 0;
}

.subpage-hero {
  min-height: 470px;
  padding: 164px clamp(24px, 6.3vw, 120px) 78px;
  display: grid;
  align-items: end;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background:
    linear-gradient(90deg, rgba(3,7,11,.98) 0%, rgba(3,7,11,.86) 42%, rgba(3,7,11,.52) 100%),
    linear-gradient(180deg, transparent 40%, rgba(3,7,11,.96)),
    var(--subpage-image, url("assets/hero-welder.jpg?v=20260712")) center / cover no-repeat;
}

.subpage-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(8,124,255,.55) 0 2px, transparent 2px 100%) 0 100% / 100% 1px no-repeat,
    radial-gradient(circle at 68% 22%, rgba(85,183,255,.10), transparent 26%);
}

.subpage-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
  color: rgba(255,255,255,.58);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.breadcrumb a {
  color: #8fd0ff;
}

.breadcrumb span {
  color: rgba(255,255,255,.34);
}

.subpage-hero h1 {
  margin-bottom: 22px;
  font-size: clamp(42px, 5vw, 76px);
  line-height: 1.07;
  letter-spacing: -.04em;
}

.subpage-hero p {
  max-width: 740px;
  color: rgba(255,255,255,.78);
  font-size: 18px;
  line-height: 1.72;
}

.subpage-section {
  padding: 92px clamp(24px, 6.3vw, 120px);
}

.subpage-section--tight {
  padding-top: 64px;
}

.subpage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.info-card,
.project-detail,
.blog-card,
.certificate-card,
.configurator-panel,
.configurator-result,
.configurator-preview,
.article-panel {
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.018)),
    #050b10;
  box-shadow: 0 24px 80px rgba(0,0,0,.24);
}

.info-card,
.certificate-card,
.article-panel {
  padding: 28px;
}

.info-card span,
.certificate-card span,
.blog-card__meta,
.project-detail__meta {
  color: #8fd0ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.info-card h3,
.certificate-card h3,
.blog-card h3,
.project-detail h3 {
  margin: 16px 0 12px;
  font-size: 22px;
}

.info-card p,
.certificate-card p,
.blog-card p,
.project-detail p,
.article-panel p {
  color: var(--muted);
  line-height: 1.68;
}

.subpage-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 42px;
  padding: 30px;
  border: 1px solid rgba(85,183,255,.22);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(8,124,255,.18), rgba(255,255,255,.025)),
    #050b10;
}

.subpage-cta h2 {
  margin-bottom: 8px;
}

.subpage-cta p {
  color: var(--muted);
  line-height: 1.62;
}

.project-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 34px 0 28px;
}

.project-filter span {
  padding: 9px 13px;
  border: 1px solid rgba(85,183,255,.20);
  border-radius: 999px;
  color: rgba(255,255,255,.78);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.project-detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.project-detail {
  overflow: hidden;
}

.project-detail__image {
  min-height: 300px;
  background: var(--project-image) center / cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.project-detail__body {
  padding: 26px;
}

.project-detail__list,
.quality-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  color: rgba(255,255,255,.70);
  line-height: 1.55;
  list-style: none;
}

.project-detail__list li,
.quality-list li {
  position: relative;
  padding-left: 20px;
}

.project-detail__list li::before,
.quality-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #087cff;
}

.certificate-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 18px;
}

.certificate-stack {
  display: grid;
  gap: 18px;
}

.document-list {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.document-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 8px;
  background: rgba(255,255,255,.035);
}

.document-row strong {
  display: block;
  margin-bottom: 6px;
}

.document-row small {
  color: var(--muted);
  line-height: 1.5;
}

.document-row em {
  flex: 0 0 auto;
  color: #8fd0ff;
  font-style: normal;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.blog-card {
  min-height: 100%;
  overflow: hidden;
}

.blog-card__image {
  min-height: 220px;
  background: var(--blog-image) center / cover no-repeat;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.blog-card__body {
  padding: 26px;
}

.section-head--media {
  margin-top: 74px;
}

.media-wall {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-flow: dense;
  gap: 12px;
  margin-top: 30px;
}

.media-card {
  position: relative;
  min-height: 260px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 8px;
  background: #050b10;
  box-shadow: 0 20px 70px rgba(0,0,0,.28);
}

.media-card--wide {
  grid-column: span 2;
}

.media-card--video {
  grid-row: span 2;
  min-height: 540px;
}

.media-card img,
.media-card video {
  width: 100%;
  height: 100%;
  min-height: inherit;
  display: block;
  object-fit: cover;
}

.media-card video {
  background: #020509;
}

.media-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 45%, rgba(0,0,0,.76));
}

.media-card figcaption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 2;
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.article-panel {
  margin-top: 18px;
}

.article-panel h3 {
  margin-bottom: 14px;
  font-size: 24px;
}

.article-panel p + p {
  margin-top: 12px;
}

.configurator-layout {
  display: grid;
  grid-template-columns: minmax(320px, .9fr) minmax(480px, 1.1fr);
  gap: 22px;
  align-items: start;
}

.configurator-panel,
.configurator-result,
.configurator-preview {
  padding: 26px;
}

.configurator-panel {
  position: sticky;
  top: 96px;
}

.config-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.config-field {
  display: grid;
  gap: 8px;
}

.config-field--wide {
  grid-column: 1 / -1;
}

.config-field label,
.config-toggle {
  color: rgba(255,255,255,.76);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.config-field small {
  color: rgba(255,255,255,.46);
  line-height: 1.42;
}

.ral-strip {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 5px;
  margin-top: 2px;
}

.ral-strip i {
  display: block;
  height: 18px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 4px;
  background: var(--ral);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.18);
}

.config-toggle {
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 7px;
  background: rgba(255,255,255,.04);
}

.config-toggle input {
  width: 18px;
  height: 18px;
  accent-color: #087cff;
}

.config-output {
  display: grid;
  gap: 18px;
}

.configurator-result__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 20px;
}

.configurator-result__price {
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -.04em;
}

.configurator-result__range {
  color: #8fd0ff;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.breakdown {
  display: grid;
  gap: 10px;
}

.breakdown div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
  border-top: 1px solid rgba(255,255,255,.08);
  color: rgba(255,255,255,.72);
}

.breakdown strong {
  color: #fff;
}

.spec-sheet {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}

.spec-sheet div {
  min-height: 76px;
  padding: 12px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 7px;
  background: rgba(255,255,255,.035);
}

.spec-sheet span {
  display: block;
  margin-bottom: 8px;
  color: rgba(255,255,255,.46);
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.spec-sheet strong {
  display: block;
  color: #fff;
  font-size: 13px;
  line-height: 1.35;
}

.config-recommendations {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 16px;
  border: 1px solid rgba(85,183,255,.20);
  border-radius: 8px;
  background: rgba(8,124,255,.06);
}

.config-recommendations h3 {
  margin: 0;
  color: #fff;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.config-recommendations ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.config-recommendations li {
  display: flex;
  gap: 10px;
  color: rgba(255,255,255,.72);
  font-size: 13px;
  line-height: 1.5;
}

.config-recommendations li::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  margin-top: .48em;
  border-radius: 50%;
  background: #55b7ff;
  box-shadow: 0 0 16px rgba(85,183,255,.55);
}

.config-note {
  margin-top: 18px;
  color: rgba(255,255,255,.55);
  font-size: 13px;
  line-height: 1.6;
}

.configurator-preview {
  overflow: hidden;
}

.preview-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.preview-toolbar span {
  color: #8fd0ff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .10em;
  text-transform: uppercase;
}

.preview-mode {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin-bottom: 12px;
  padding: 5px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 8px;
  background: rgba(255,255,255,.035);
}

.preview-mode button {
  min-height: 38px;
  border-radius: 6px;
  color: rgba(255,255,255,.66);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.preview-mode button.active {
  background: rgba(8,124,255,.16);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(85,183,255,.32);
}

.preview-stage {
  min-height: 430px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.035), transparent 58%),
    linear-gradient(180deg, transparent 72%, rgba(8,124,255,.08)),
    #03070b;
}

.preview-stage svg {
  width: min(100%, 760px);
  height: auto;
}

.preview-metal {
  fill: #111820;
  stroke: #6f7b86;
  stroke-width: 3;
}

.preview-blue {
  fill: #087cff;
}

.preview-line {
  stroke: #cfd7dc;
  stroke-width: 6;
  stroke-linecap: round;
}

.preview-shadow {
  fill: rgba(0,0,0,.28);
}

.preview-label {
  fill: rgba(255,255,255,.74);
  font: 700 17px Inter, Arial, sans-serif;
  letter-spacing: 1.5px;
}

.configurator-preview {
  min-height: 520px;
}

.configurator-preview .preview-stage {
  min-height: 438px;
}

.configurator-result h2 {
  max-width: 360px;
}

@media (max-width: 1180px) {
  .subpage .site-header,
  .subpage .site-header.is-visible,
  .subpage .is-visible.site-header,
  .subpage .is-visible .site-header {
    left: 16px !important;
    right: 16px !important;
    top: 12px !important;
  }

  .configurator-layout,
  .certificate-grid {
    grid-template-columns: 1fr;
  }

  .configurator-panel {
    position: static;
  }
}

@media (max-width: 980px) {
  .subpage-hero {
    min-height: 430px;
    padding-top: 132px;
  }

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

  .project-detail-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .subpage .site-header,
  .subpage .site-header.is-visible,
  .subpage .is-visible.site-header,
  .subpage .is-visible .site-header {
    top: 8px !important;
    left: 8px !important;
    right: 8px !important;
  }

  .subpage-hero {
    min-height: 410px;
    padding: 116px 20px 56px;
  }

  .subpage-hero p {
    font-size: 16px;
  }

  .subpage-section {
    padding: 62px 20px;
  }

  .subpage-grid,
  .blog-grid,
  .config-grid {
    grid-template-columns: 1fr;
  }

  .subpage-cta,
  .configurator-result__top,
  .preview-toolbar,
  .document-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .project-detail__image,
  .blog-card__image {
    min-height: 210px;
  }

  .media-wall {
    grid-template-columns: 1fr;
  }

  .media-card,
  .media-card--video,
  .media-card--wide {
    grid-column: auto;
    grid-row: auto;
    min-height: 280px;
  }

  .preview-stage {
    min-height: 300px;
  }

  .spec-sheet {
    grid-template-columns: 1fr;
  }
}