/* AR3D professional presentation and accessibility layer */
:root {
  --focus: #f4e900;
  --surface: #ffffff;
  --surface-soft: #eef5e9;
  --dark-border: rgba(255, 255, 255, 0.12);
  --shadow-soft: 0 24px 70px rgba(7, 28, 18, 0.12);
}

html {
  scroll-padding-top: 96px;
}

body {
  min-width: 320px;
  background:
    radial-gradient(circle at 86% 8%, rgba(168, 212, 0, 0.1), transparent 25rem),
    var(--ink);
}

img {
  max-width: 100%;
}

button,
a,
input,
select,
textarea,
summary {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  right: 18px;
  z-index: 1000;
  padding: 10px 16px;
  border-radius: 10px;
  color: var(--ink);
  background: var(--amber);
  font-weight: 800;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--dark-border);
  background: rgba(16, 32, 25, 0.88);
  backdrop-filter: blur(18px) saturate(130%);
}

.nav {
  height: 88px;
}

.navlinks a {
  position: relative;
  padding: 12px 2px;
  transition: color 0.2s ease;
}

.navlinks a::after {
  position: absolute;
  right: 0;
  bottom: 5px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  content: "";
  background: var(--cyan);
  transition: width 0.2s ease;
}

.navlinks a:hover::after,
.navlinks a:focus-visible::after {
  width: 100%;
}

.menu {
  min-width: 44px;
  min-height: 44px;
}

section[id] {
  scroll-margin-top: 96px;
}

.hero {
  min-height: calc(100vh - 88px);
}

.hero > div:first-child {
  position: relative;
  z-index: 2;
}

.hero h1 {
  text-wrap: balance;
}

.btn {
  min-height: 48px;
  border-radius: 12px;
}

.btn-primary {
  box-shadow: 0 14px 36px rgba(168, 212, 0, 0.2);
}

.btn-ghost:hover {
  border-color: rgba(244, 233, 0, 0.5);
  background: rgba(255, 255, 255, 0.07);
}

.visual {
  isolation: isolate;
  border-radius: 30px;
}

.visual img {
  aspect-ratio: 1.6 / 1;
}

.light {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(247, 250, 243, 0.96)),
    var(--paper);
}

.section-head h2,
.section h2 {
  text-wrap: balance;
}

.service {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
}

.service::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 72px;
  height: 4px;
  content: "";
  background: var(--cyan);
  transition: width 0.25s ease;
}

.service:hover::after {
  width: 100%;
}

.process {
  background:
    linear-gradient(135deg, rgba(36, 75, 49, 0.98), rgba(16, 32, 25, 0.98)),
    var(--panel);
}

.step {
  transition: padding 0.2s ease, background 0.2s ease;
}

.step:hover {
  padding-inline: 14px;
  background: rgba(255, 255, 255, 0.025);
}

.material,
.sector,
.founder,
.edu-card {
  transition: transform 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

.material:hover,
.sector:hover,
.founder:hover {
  transform: translateY(-3px);
}

.edu-card {
  border: 1px solid #dce6e9;
  box-shadow: var(--shadow-soft);
}

.edu-card h3 {
  margin-top: 0;
}

.compare-note {
  color: #6a7b84;
  font-size: 0.83rem;
}

.fill-94 { width: 94%; }
.fill-83 { width: 83%; }
.fill-91 { width: 91%; }
.fill-97 { width: 97%; }

.text-muted {
  color: #5b6c76;
}

.text-soft {
  color: #b6cdb6;
}

.about-visual {
  padding: clamp(18px, 3vw, 36px);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(232, 238, 231, 0.9));
  box-shadow: var(--shadow-soft);
}

.about-visual img {
  aspect-ratio: 4 / 3;
  object-fit: contain;
}

.quote {
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.23);
}

.quote-tip {
  display: inline-block;
  margin-top: 18px;
}

.field input,
.field select,
.field textarea {
  min-height: 48px;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--cyan);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(168, 212, 0, 0.12);
}

.field [aria-invalid="true"] {
  border-color: #ff8b7d;
  box-shadow: 0 0 0 3px rgba(255, 139, 125, 0.12);
}

.form-note {
  margin: 0;
  line-height: 1.7;
}

.success {
  gap: 10px;
  color: #f7fbfc;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(168, 212, 0, 0.5);
  text-align: right;
}

.success.is-visible {
  display: grid;
}

.success label {
  color: var(--amber);
  font-size: 0.82rem;
}

.success textarea {
  min-height: 150px;
  resize: vertical;
  border: 1px solid var(--dark-border);
  border-radius: 10px;
  padding: 12px;
  color: #f7fbfc;
  background: rgba(0, 0, 0, 0.2);
}

.copy-button {
  width: fit-content;
  min-height: 42px;
  border: 0;
  border-radius: 9px;
  padding: 9px 16px;
  color: var(--ink);
  background: var(--cyan);
  font-weight: 800;
  cursor: pointer;
}

.faq-head {
  margin-bottom: 35px;
  text-align: center;
}

.faq details {
  border-radius: 12px;
  padding-inline: 14px;
  transition: background 0.2s ease;
}

.faq details[open] {
  background: #eef5e9;
}

@media (max-width: 900px) {
  .nav {
    height: 76px;
  }

  .navlinks.open {
    top: calc(100% + 8px);
    border-radius: 16px;
    background: rgba(16, 32, 25, 0.98);
  }

  .navlinks.open a {
    min-height: 46px;
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 560px) {
  .brand {
    font-size: 1rem;
  }

  .mark {
    width: 42px;
    height: 42px;
  }

  .hero {
    gap: 28px;
  }

  .floating {
    gap: 8px;
  }

  .float-card {
    padding: 10px 12px;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.honeypot { position: absolute !important; inline-size: 1px; block-size: 1px; overflow: hidden; clip-path: inset(50%); }
.field small { color: #8ea097; font-size: .68rem; }
.legal-links { display: flex; gap: 12px; flex-wrap: wrap; }
.legal-links a { color: #a8b7af; }
.legal-links a:hover { color: var(--cyan); }
.newsletter { background: #102019; color: #fff; padding: 3.5rem 0; }
.newsletter-row { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: center; }
.newsletter h2 { margin: .4rem 0; font-size: clamp(1.7rem, 3.5vw, 3rem); }
.newsletter p { color: #bfd0c5; }
.newsletter form { display: grid; grid-template-columns: 1fr auto; gap: .75rem; }
.newsletter input { min-width: 0; border: 1px solid #476055; border-radius: 12px; background: #fff; color: #102019; padding: .95rem 1rem; font: inherit; }
.newsletter form span { grid-column: 1 / -1; min-height: 1.4em; color: #d9ef45; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 720px) { .newsletter-row { grid-template-columns: 1fr; } .newsletter form { grid-template-columns: 1fr; } .newsletter form span { grid-column: auto; } }