/* ---------- Base ---------- */
:root {
  --bg: #ffffff;
  --text: #191c1f;
  --text-secondary: #4b5157;
  --text-muted: #8a857a;
  --border: #dfe7ec;
  --accent: #3d6485;
  --accent-hover: #2c4c68;
  --tint: #eef3f7;
  --band-text: #dbe4ec;
  --band-text-alt: #e4ecf2;
  --band-text-soft: #c3d4e2;
  --dashed: #c8c2b6;
  --pad-x: 56px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Archivo, sans-serif;
}

img { max-width: 100%; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 4px;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }

.btn-outline {
  border: 1px solid var(--dashed);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--text); color: var(--text); }

.btn-lg {
  font-size: 15px;
  padding: 13px 24px;
}

/* ---------- Header ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px var(--pad-x);
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.header-logo { height: 36px; display: block; }

.site-nav {
  display: flex;
  gap: 32px;
  font-size: 14px;
  font-weight: 500;
}
.site-nav a { color: var(--text-secondary); }
.site-nav a:hover { color: var(--text); }

/* ---------- Eyebrow / section furniture ---------- */
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--accent);
  text-transform: uppercase;
}
.eyebrow-light { color: var(--band-text); }

.section { padding: 64px var(--pad-x); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 36px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -.01em;
}
.section-note {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--text-muted);
}

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  padding: 72px var(--pad-x) 64px;
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.hero h1 {
  font-size: 56px;
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -.02em;
}

.hero-lede {
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 6px;
}

/* ---------- Before/after comparison slider ---------- */
.compare {
  position: relative;
  width: 100%;
  height: 400px;
  border-radius: 8px;
  overflow: hidden;
  background: #e5e5e5;
}

.compare-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.compare-before { clip-path: inset(0 50% 0 0); }

.compare-line {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, .2);
  transform: translateX(-1px);
  pointer-events: none;
}

.compare-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, .3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--accent);
  pointer-events: none;
}

.compare-range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  margin: 0;
  -webkit-appearance: none;
  appearance: none;
}

/* Visible focus ring for keyboard users (the input itself is transparent) */
.compare:has(.compare-range:focus-visible) {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.compare-tag {
  position: absolute;
  bottom: 12px;
  background: rgba(0, 0, 0, .55);
  color: #fff;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  padding: 5px 10px;
  border-radius: 4px;
  pointer-events: none;
}
.compare-tag-left { left: 12px; }
.compare-tag-right { right: 12px; }

/* ---------- Services ---------- */
.services { border-top: 1px solid var(--border); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: #fff;
}

.card-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--accent);
}

.card h3 {
  font-size: 19px;
  font-weight: 700;
}

.card p:not(.card-num) {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
}

.card-filled {
  border: none;
  background: var(--accent);
  color: #fff;
  justify-content: center;
}
.card-filled p { color: var(--band-text) !important; }

/* ---------- Platform band ---------- */
.platform {
  background: var(--accent);
  color: #fff;
}

.platform-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.platform-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.platform h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.15;
}

.platform-lede {
  font-size: 15px;
  line-height: 1.65;
  color: var(--band-text-alt);
}

.pill-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill-list li {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid rgba(255, 255, 255, .4);
  border-radius: 99px;
  color: #fff;
}

.platform-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

/* ---------- Products ---------- */
.product {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.product-media img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 6px;
  display: block;
}

.product h3 {
  font-size: 18px;
  font-weight: 700;
}

.product p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-secondary);
  margin-top: -8px;
}

.product-placeholder {
  border: 1px dashed var(--dashed);
  border-radius: 6px;
  gap: 8px;
  align-items: center;
  justify-content: center;
  padding: 26px;
  text-align: center;
}
.product-placeholder h3 { color: var(--text-muted); }
.product-placeholder p {
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 0;
}

/* ---------- Licensing band ---------- */
.licensing {
  padding: 56px var(--pad-x);
  background: var(--tint);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.licensing-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 28px;
  align-items: start;
  max-width: 980px;
}

.licensing-eyebrow { padding-top: 4px; }

.licensing-copy {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ---------- Contact ---------- */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 72px var(--pad-x);
  background: var(--accent);
  color: #fff;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact h2 {
  font-size: 52px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.02em;
  text-transform: uppercase;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  margin-top: 8px;
}

.contact-link { color: #fff; }
.contact-link:hover { color: var(--band-text-soft); }

.contact-location {
  color: var(--band-text-soft);
  font-weight: 400;
  font-size: 14px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-field {
  display: flex;
  flex-direction: column;
}

.contact-form input,
.contact-form textarea {
  background: transparent;
  border: none;
  border-bottom: 2px solid rgba(255, 255, 255, .5);
  border-radius: 0;
  padding: 12px 2px;
  font-family: Archivo, sans-serif;
  font-size: 14px;
  color: #fff;
  width: 100%;
  resize: vertical;
}

.contact-form textarea {
  padding-bottom: 48px;
  min-height: 48px;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--band-text-soft);
  opacity: 1;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-bottom-color: #fff;
}

.form-field.invalid input,
.form-field.invalid textarea {
  border-bottom-color: #f2b8b5;
}

.form-error {
  font-size: 12px;
  color: #f2b8b5;
  min-height: 0;
  padding-top: 4px;
}
.form-error:empty { display: none; }

.btn-send {
  background: #fff;
  color: #131517;
  border: none;
  font-family: Archivo, sans-serif;
  font-size: 15px;
  font-weight: 800;
  padding: 15px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-top: 8px;
  cursor: pointer;
}
.btn-send:hover { background: var(--tint); }

.form-status {
  font-size: 14px;
  color: #fff;
}
.form-status:empty { display: none; }

/* ---------- Footer ---------- */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px var(--pad-x);
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

.footer-logo {
  height: 24px;
  display: block;
  opacity: .75;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  :root { --pad-x: 32px; }

  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 48px;
  }

  .hero h1 { font-size: 44px; }

  .compare { height: 340px; }

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

  .platform-grid,
  .contact,
  .licensing-inner {
    grid-template-columns: 1fr;
  }

  .platform-grid { gap: 36px; }
  .contact { gap: 40px; }
  .licensing-inner { gap: 12px; }
}

@media (max-width: 640px) {
  :root { --pad-x: 20px; }

  .site-header {
    flex-wrap: wrap;
    row-gap: 12px;
    padding-top: 16px;
    padding-bottom: 16px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    gap: 20px;
  }

  .hero h1 { font-size: 36px; }

  .compare { height: 260px; }

  .card-grid { grid-template-columns: 1fr; }

  .section-head {
    flex-direction: column;
    gap: 6px;
  }

  .contact h2 { font-size: 40px; }

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

  .site-footer {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}