:root {
  --ink: #141414;
  --ink-soft: #434343;
  --muted: #6b7280;
  --line: #d9dde3;
  --paper: #ffffff;
  --panel: #f6f7f9;
  --accent: #f5c542;
  --accent-ink: #241b00;
  --blue: #245fba;
  --blue-dark: #174486;
  --success: #17683a;
  --danger: #b42318;
  --shadow: 0 18px 45px rgba(20, 20, 20, 0.12);
  font-family: Inter, Arial, Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  z-index: 100;
  padding: 8px 12px;
  background: var(--accent);
  color: var(--accent-ink);
}

.skip-link:focus {
  left: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(18, 18, 18, 0.98);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  display: inline-grid;
  place-items: center;
  font-size: 27px;
  line-height: 1;
  font-weight: 900;
}

.brand small {
  display: block;
  color: #b9bec8;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links a {
  color: #e4e7ec;
  text-decoration: none;
  font-weight: 650;
  font-size: 14px;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--accent);
}

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

.lang {
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 8px;
  color: #fff;
  background: transparent;
  padding: 8px 12px;
  font-weight: 700;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  background: transparent;
  color: #fff;
  align-items: center;
  justify-content: center;
}

.menu-toggle span,
.menu-toggle span::before,
.menu-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  content: "";
}

.menu-toggle span::before {
  transform: translateY(-7px);
}

.menu-toggle span::after {
  transform: translateY(5px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  background: var(--blue);
  color: #fff;
}

.button.primary:hover {
  background: var(--blue-dark);
}

.button.secondary {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.button.ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}

.hero {
  position: relative;
  min-height: 620px;
  display: grid;
  align-items: center;
  color: #fff;
  background:
    linear-gradient(90deg, rgba(12, 12, 12, 0.92) 0%, rgba(12, 12, 12, 0.72) 48%, rgba(12, 12, 12, 0.2) 100%),
    url("hero-blades.svg") center right / cover no-repeat,
    #1a1a1a;
}

.hero .inner,
.section .inner,
.footer .inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero-copy {
  max-width: 720px;
  padding: 86px 0;
}

.eyebrow {
  color: var(--accent);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
  font-size: 13px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(42px, 7vw, 78px);
  line-height: 0.98;
  letter-spacing: 0;
  margin-bottom: 24px;
}

h2 {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.1;
  margin-bottom: 16px;
}

h3 {
  font-size: 21px;
  line-height: 1.25;
  margin-bottom: 10px;
}

.lead {
  font-size: clamp(19px, 2vw, 24px);
  color: #f3f5f8;
  max-width: 820px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 36px;
}

.metric {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.09);
  border-radius: 8px;
}

.metric strong {
  display: block;
  font-size: 24px;
}

.metric span {
  color: #dce2ea;
  font-size: 13px;
}

.section {
  padding: 74px 0;
}

.section.alt {
  background: var(--panel);
}

.section

.section-head {
  max-width: 760px;
  margin-bottom: 32px;
}

.section-head p {
  color: var(--ink-soft);
  font-size: 18px;
}



.grid {
  display: grid;
  gap: 18px;
}

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

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

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

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 22px;
  min-width: 0;
}



.card.media-card {
  padding: 0;
  overflow: hidden;
}

.media-card img {
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: contain;
}

.media-card .card-body {
  padding: 20px;
}

.muted {
  color: var(--muted);
}

.tag-list,
.spec-list,
.check-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 16px 0 0;
  list-style: none;
}

.tag-list li,
.spec-list li {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px 10px;
  background: var(--panel);
  font-size: 13px;
  font-weight: 700;
}

.check-list {
  display: grid;
  gap: 10px;
  margin-top: 0;
}

.check-list li {
  position: relative;
  padding-left: 26px;
}

.check-list li::before {
  position: absolute;
  left: 0;
  content: "�?;
  color: var(--success);
  font-weight: 900;
}

.proof-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
  align-items: center;
}

.proof-media {
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #e8ebef;
}

.proof-media img {
  width: 100%;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: #eef1f5;
  font-size: 13px;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: 0;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.filter-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 9px 12px;
  font-weight: 800;
  cursor: pointer;
}

.filter-button.active {
  background: var(--ink);
  color: #fff;
}

.page-hero {
  background: #181818;
  color: #fff;
  padding: 72px 0;
}

.page-hero .inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.breadcrumb {
  color: #cbd1dc;
  font-size: 14px;
  margin-bottom: 18px;
}

.breadcrumb a {
  color: #fff;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  display: grid;
  gap: 6px;
}

.field.full {
  grid-column: 1 / -1;
}

label {
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #c7cdd8;
  border-radius: 8px;
  padding: 11px 12px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

textarea {
  min-height: 130px;
  resize: vertical;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.checkbox-grid label {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  font-weight: 650;
}

.checkbox-grid input {
  width: auto;
  margin-top: 5px;
}

.status {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
}

.status.success {
  border-color: rgba(23, 104, 58, 0.3);
  background: #ecfdf3;
  color: var(--success);
}

.status.error {
  border-color: rgba(180, 35, 24, 0.3);
  background: #fef3f2;
  color: var(--danger);
}

.status.notice {
  border-color: rgba(36, 95, 186, 0.3);
  background: #eff6ff;
  color: var(--blue-dark);
}

.footer {
  background: #111;
  color: #e9edf3;
  padding: 44px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 26px;
}

.footer a {
  color: #e9edf3;
  text-decoration: none;
}

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

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

.footer-bottom {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid #333;
  color: #aeb5c1;
  font-size: 14px;
}

.callout {
  border-left: 5px solid var(--accent);
  background: #fff8df;
  padding: 16px;
  border-radius: 0 8px 8px 0;
}

.hidden {
  display: none !important;
}

@media (max-width: 920px) {
  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: fixed;
    inset: 72px 0 auto 0;
    display: none;
    padding: 18px 16px 26px;
    background: #111;
    border-bottom: 1px solid #333;
  }

  .nav-links.open {
    display: grid;
    gap: 0;
  }

  .nav-links a {
    display: block;
    padding: 14px 4px;
    color: #f3f5f8;
    border-bottom: 1px solid #2c2c2c;
  }

  .metrics,
  .grid.four,
  .grid.three,
  .grid.two,
  .proof-band,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    background:
      linear-gradient(180deg, rgba(12, 12, 12, 0.94) 0%, rgba(12, 12, 12, 0.78) 62%, rgba(12, 12, 12, 0.72) 100%),
      url("hero-blades.svg") center / cover no-repeat,
      #1a1a1a;
  }

  .hero-copy {
    padding: 62px 0;
  }

  .form-grid,
  .checkbox-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .nav {
    min-height: 64px;
  }

  .brand small {
    display: none;
  }

  .nav-links {
    inset-top: 64px;
  }

  .hero-actions .button,
  .page-hero .button {
    width: 100%;
  }

  .section {
    padding: 52px 0;
  }

  h1 {
    font-size: 42px;
  }
}

.download-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.download-list li {
  margin-bottom: 10px;
}

.download-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  width: 100%;
  transition: border-color 0.2s, background 0.2s;
}

.download-list a:hover {
  border-color: var(--accent);
  background: var(--accent-bg);
}

.file-size {
  font-size: 13px;
  color: var(--muted);
  margin-left: auto;
}
.video-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
  margin-top: 28px;
}
.video-card {
  background: var(--panel);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.video-card video {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  background: #000;
  display: block;
}
.video-card .video-caption {
  padding: 12px 14px;
  font-size: 14px;
  color: var(--ink-soft);
}
.video-card .video-caption strong {
  display: block;
  color: var(--ink);
  margin-bottom: 2px;
}
.video-single {
  max-width: 800px;
  margin: 0 auto 24px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #000;
}
.video-single video {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: contain;
  display: block;
}
.video-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 20px;
}
@media (max-width: 700px) {
  .video-row { grid-template-columns: 1fr; }
  .video-gallery { grid-template-columns: 1fr; }
}