@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --blue-deep: #0a1f33;
  --blue-steel: #3a4a5a;
  --blue-mid: #1e4e79;
  --bg-white: #ffffff;
  --bg-off-white: #f7f9fc;
  --text-primary: #0a1f33;
  --text-secondary: #3a4a5a;
  --text-muted: #6b7a8d;
  --border: #d8e0ea;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'IBM Plex Sans', 'Inter', system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.6;
  cursor: none;
  -webkit-font-smoothing: antialiased;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
ul {
  list-style: none;
}

#cursor-dot {
  position: fixed;
  width: 6px;
  height: 6px;
  background: var(--blue-mid);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: background 0.2s;
}
#cursor-ring {
  position: fixed;
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--blue-mid);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.25s, height 0.25s, border-color 0.25s, border-radius 0.25s;
  mix-blend-mode: difference;
}
#cursor-label {
  position: fixed;
  pointer-events: none;
  z-index: 9997;
  transform: translate(16px, -8px);
  font-family: var(--font-sans);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--blue-mid);
  opacity: 0;
  transition: opacity 0.2s;
}
body.cursor-hover #cursor-ring {
  width: 48px;
  height: 48px;
}
body.cursor-hero #cursor-ring {
  border-color: rgba(255, 255, 255, 0.6);
  width: 44px;
  height: 44px;
}
body.cursor-hero #cursor-dot {
  background: white;
}
body.cursor-hero #cursor-label {
  opacity: 1;
  color: white;
}
body.cursor-tech #cursor-ring {
  border-color: #4fc3f7;
  border-radius: 4px;
}
body.cursor-tech #cursor-label {
  opacity: 1;
  color: #4fc3f7;
}
body.cursor-contact #cursor-ring {
  border-color: #4caf50;
}
body.cursor-contact #cursor-label {
  opacity: 1;
  color: #4caf50;
}

#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9990;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 12px 20px;
  font-family: var(--font-sans);
  font-size: 13px;
  background: var(--blue-deep);
  color: white;
  min-width: 240px;
  border-left: 3px solid var(--blue-mid);
}
.toast.success {
  border-left-color: #4caf50;
}
.toast.error {
  border-left-color: #ef5350;
}
.toast.info {
  border-left-color: var(--blue-mid);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.from-right {
  transform: translateX(32px);
}
.reveal.from-left {
  transform: translateX(-32px);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--blue-deep);
}
h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
}
h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
}
h3 {
  font-size: 1.4rem;
}
h4 {
  font-size: 1.1rem;
}
p {
  color: var(--text-secondary);
  line-height: 1.75;
}
.lead {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.75;
}
.text-white {
  color: white !important;
}
.text-center {
  text-align: center;
}
.text-muted {
  color: var(--text-muted);
}
.mb-3 {
  margin-bottom: 12px;
}
.mb-4 {
  margin-bottom: 16px;
}
.mb-6 {
  margin-bottom: 24px;
}
.mb-8 {
  margin-bottom: 48px;
}
.mt-6 {
  margin-top: 24px;
}
.mt-8 {
  margin-top: 48px;
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #0f0c48;
}
.eyebrow-line {
  display: flex;
  align-items: center;
  gap: 12px;
}
.eyebrow-line::before {
  content: '';
  display: block;
  width: 32px;
  height: 1px;
  background: #5c5a70;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.25s;
  border: none;
}
.btn-primary {
  background: var(--blue-deep);
  color: white;
}
.btn-primary:hover {
  background: var(--blue-mid);
}
.btn-outline {
  background: transparent;
  border: 1.5px solid var(--blue-deep);
  color: var(--blue-deep);
}
.btn-outline:hover {
  background: var(--blue-deep);
  color: white;
}
.btn-outline-white {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: white;
}
.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
}
.btn-arrow::after {
  content: '→';
  font-size: 14px;
}

#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 500;
  transition: background 0.3s, backdrop-filter 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
#nav.scrolled {
  background: rgba(10, 31, 51, 0.96);
  backdrop-filter: blur(12px);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-logo-mark {
  width: 200px;
  height: 200px;
  background: var(--blue-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav-logo-mark span {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 700;
  color: white;
}
.nav-logo-name {
  display: block;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: white;
  line-height: 1.2;
}
.nav-logo-sub {
  display: block;
  font-family: var(--font-sans);
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  min-width: 0;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
  color: white;
}
.nav-cta {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 8px 16px;
  transition: all 0.2s;
}
.nav-cta:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: white;
}
.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: white;
  transition: all 0.2s;
}
.nav-mobile-menu {
  display: none;
  background: var(--blue-deep);
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.nav-mobile-menu.open {
  max-height: 400px;
}
.nav-mobile-menu a {
  display: block;
  padding: 14px 20px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
@media (max-width: 900px) {
  .nav-links,
  .nav-cta {
    display: none;
  }
  .nav-mobile-toggle {
    display: flex;
  }
  .nav-mobile-menu {
    display: block;
  }
}

footer {
  background: var(--blue-deep);
}
.footer-main {
  padding: 80px 0 48px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
}
.footer-brand-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.75;
  margin-top: 20px;
  max-width: 320px;
}
.footer-col-title {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 20px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.2s;
}
.footer-links a:hover {
  color: white;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.3);
}
.footer-tagline {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.2);
}
@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.section {
  padding: 100px 0;
}
.bg-white {
  background: var(--bg-white);
}
.bg-off-white {
  background: var(--bg-off-white);
}
.bg-deep {
  background: var(--blue-deep);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  padding-top: 72px;
}
.hero-bg-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.05;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 31, 51, 0.97) 0%,
    rgba(10, 31, 51, 0.88) 60%,
    rgba(30, 78, 121, 0.7) 100%
  );
}
.hero-content {
  max-width: 760px;
  padding: 80px 0 40px;
}
.hero-title {
  color: white;
  margin-bottom: 28px;
}
.hero-lead {
  color: rgba(255, 255, 255, 0.65);
  font-size: 1.1rem;
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 600px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-stats {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 32px 0;
}
.hero-stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.hero-stat {
  padding: 24px 32px;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}
.hero-stat:last-child {
  border-right: none;
}
.hero-stat-num {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: white;
  margin-bottom: 4px;
}
.hero-stat-label {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}
@media (max-width: 768px) {
  .hero-stats-inner {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-stat {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
}

.page-hero {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  padding-top: 72px;
}
.page-hero-sm {
  min-height: 340px;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.06;
}
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 31, 51, 0.92) 0%,
    rgba(10, 31, 51, 0.85) 100%
  );
}
.page-hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 0;
  max-width: 720px;
}
.page-hero-content h1 {
  color: white;
}
.page-hero-content .lead {
  color: rgba(255, 255, 255, 0.6);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
@media (max-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 600px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

.product-card {
  border: 1px solid var(--border);
  background: white;
  transition: box-shadow 0.25s, transform 0.25s;
}
.product-card:hover {
  box-shadow: 0 8px 32px rgba(10, 31, 51, 0.1);
  transform: translateY(-2px);
}
.product-card-header {
  padding: 28px 28px 20px;
  border-bottom: 1px solid var(--border);
}
.product-card-body {
  padding: 20px 28px 28px;
}
.product-badge {
  display: inline-block;
  padding: 3px 10px;
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.badge-pro {
  background: var(--blue-deep);
  color: white;
}
.badge-lite {
  background: var(--bg-off-white);
  color: var(--blue-steel);
  border: 1px solid var(--border);
}
.badge-siat {
  background: var(--blue-mid);
  color: white;
}
.product-name {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--blue-deep);
  margin-bottom: 6px;
}
.product-tagline {
  font-size: 12px;
  color: var(--text-muted);
}
.product-caps {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.product-caps li {
  font-size: 12px;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.product-caps li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--blue-mid);
  font-size: 10px;
  top: 1px;
}

.focus-card {
  padding: 32px;
  border: 1px solid var(--border);
  background: white;
  transition: box-shadow 0.25s;
}
.focus-card:hover {
  box-shadow: 0 4px 20px rgba(10, 31, 51, 0.08);
}
.focus-card-icon {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--border);
  margin-bottom: 16px;
}
.focus-card-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--blue-deep);
  margin-bottom: 12px;
}
.focus-card-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}

.card-stat {
  padding: 32px 24px;
  background: var(--bg-off-white);
  border: 1px solid var(--border);
  text-align: center;
}
.stat-num {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--blue-deep);
  margin-bottom: 4px;
}
.stat-label {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.tag-blue {
  border-color: var(--blue-mid);
  color: var(--blue-mid);
  background: rgba(30, 78, 121, 0.05);
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

.tech-layer {
  padding: 28px 32px;
  border: 1px solid var(--border);
  margin-bottom: 12px;
  background: white;
  transition: box-shadow 0.2s;
}
.tech-layer:hover {
  box-shadow: 0 4px 16px rgba(10, 31, 51, 0.06);
}
.tech-layer-num {
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--blue-mid);
  margin-bottom: 6px;
}
.tech-layer-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--blue-deep);
  margin-bottom: 10px;
}
.tech-layer-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
}
.tech-layer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: flex-start;
  min-width: 200px;
}

.diagram-wrap {
  background: var(--bg-off-white);
  border: 1px solid var(--border);
  padding: 24px;
}
.diagram-wrap svg {
  width: 100%;
  height: auto;
}

.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.form-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text-primary);
  background: white;
  transition: border-color 0.2s;
  box-sizing: border-box;
}
.form-input:focus {
  outline: none;
  border-color: var(--blue-mid);
}
.form-input.input-error {
  border-color: #ef5350;
}
.form-textarea {
  min-height: 140px;
  resize: vertical;
}
.form-error {
  font-size: 11px;
  color: #ef5350;
  margin-top: 4px;
  min-height: 16px;
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  .hero-content {
    padding: 40px 0 24px;
  }
  .hero-lead {
    font-size: 0.95rem;
  }
  .hero-stats {
    padding: 20px 0;
  }
  .hero-stat {
    padding: 16px 12px;
  }
  .hero-stat-num {
    font-size: 1.4rem;
  }
  .page-hero {
    min-height: 320px;
  }
  .page-hero-content {
    padding: 32px 0;
  }
  .page-hero-content h1 {
    font-size: clamp(1.6rem, 6vw, 2.4rem);
  }
  .grid-2[style*='gap:80px'] {
    gap: 32px !important;
  }
  .grid-2 {
    gap: 32px;
  }
  .grid-3 {
    gap: 16px;
  }
  .card-stat {
    padding: 20px 16px;
  }
  .stat-num {
    font-size: 1.3rem;
  }
  .focus-card {
    padding: 24px;
  }
  .tech-layer {
    padding: 20px;
  }
  .product-card-header {
    padding: 20px 20px 16px;
  }
  .product-card-body {
    padding: 16px 20px 20px;
  }
  .footer-main {
    padding: 48px 0 32px;
  }
  .diagram-wrap {
    padding: 12px;
  }
  .diagram-wrap svg {
    min-height: 240px;
  }
}
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .hero-stats-inner {
    grid-template-columns: 1fr 1fr;
  }
  h1 {
    font-size: clamp(1.8rem, 7vw, 2.6rem);
  }
  .btn {
    padding: 12px 20px;
    font-size: 10px;
  }
}