/* Base layout */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Inter", sans-serif;
  color: #1f2933;
  background-color: #F8FAFC;
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: #2D3E4E;
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

h1,
h2,
h3 {
  font-weight: 300;
  color: #111827;
  margin-top: 0;
}

p {
  margin-top: 0;
}

.section {
  padding: 4rem 1.5rem;
}

.section-inner {
  max-width: 72rem;
  margin: 0 auto;
}

.section-heading {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-heading h2 {
  letter-spacing: 0.04em;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: #6b7280;
  margin-bottom: 0.75rem;
}

.grid {
  display: grid;
  gap: 1.75rem;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}

.card {
  border: 0.5px solid rgba(148, 163, 184, 0.7);
  border-radius: 0.25rem;
  padding: 1.75rem;
  background: rgba(224, 231, 255, 0.2);
}

.product-card .product-price {
  margin-top: 1rem;
  font-weight: 500;
  color: #111827;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 0.75rem;
}

.feature-list li::before {
  content: "•";
  color: #818CF8;
  margin-right: 0.4rem;
}

/* Header and navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(248, 250, 252, 0.9);
  border-bottom: 0.5px solid rgba(148, 163, 184, 0.5);
}

.header-inner {
  max-width: 72rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  gap: 1rem;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-title-text {
  font-size: 1rem;
  text-transform: uppercase;
  color: #111827;
}

.primary-nav {
  display: none;
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
}

.nav-list a {
  position: relative;
  padding-bottom: 0.25rem;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: #818CF8;
  transition: width 180ms ease-out;
}

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

.burger {
  margin-left: auto;
  border: 0.5px solid rgba(148, 163, 184, 0.9);
  border-radius: 999px;
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.7rem;
  gap: 0.25rem;
  cursor: pointer;
}

.burger-line {
  width: 1rem;
  height: 1px;
  background: #111827;
  display: block;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(16px);
  transform: translateY(-100%);
  transition: transform 200ms ease-out;
  z-index: 15;
}

.mobile-menu.open {
  transform: translateY(0);
}

.mobile-nav-list {
  list-style: none;
  padding: 6rem 2rem 2rem;
  margin: 0;
  max-width: 28rem;
}

.mobile-nav-list li + li {
  margin-top: 1.25rem;
}

.mobile-nav-list a {
  color: #f9fafb;
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Hero */
.section-core {
  position: relative;
  padding-top: 5.5rem;
  background: radial-gradient(circle at top left, #E0E7FF 0, #F8FAFC 45%, #ffffff 100%);
}

.hero-grid {
  display: grid;
  gap: 2.5rem;
}

.hero-text-block h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.hero-grid-meta {
  margin-top: 2rem;
  display: grid;
  gap: 1.5rem;
}

.hero-figure {
  position: relative;
  isolation: isolate;
}

.hero-figure::before {
  content: "";
  position: absolute;
  inset: 7%;
  background: linear-gradient(135deg, rgba(129, 140, 248, 0.45), rgba(224, 231, 255, 0.5));
  filter: blur(26px);
  z-index: -2;
}

.hero-figure img {
  border-radius: 0.5rem;
  border: 0.5px solid rgba(148, 163, 184, 0.7);
}

/* Space and advisory grids */
.section-space-grid,
.section-advisory-grid,
.contact-grid {
  display: grid;
  gap: 2.5rem;
}

.contact-list {
  display: grid;
  gap: 0.75rem;
}

.contact-list dt {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #6b7280;
}

.contact-list dd {
  margin: 0.1rem 0 0;
}

/* Forms and buttons */
.contact-form {
  border: 0.5px solid rgba(148, 163, 184, 0.7);
  border-radius: 0.25rem;
  padding: 1.75rem;
  background: rgba(224, 231, 255, 0.15);
  display: grid;
  gap: 1rem;
}

.form-field {
  display: grid;
  gap: 0.35rem;
}

.form-field label {
  font-size: 0.85rem;
  color: #374151;
}

input[type="text"],
input[type="email"],
textarea {
  border-radius: 0.25rem;
  border: 1px solid rgba(148, 163, 184, 0.8);
  padding: 0.6rem 0.7rem;
  font: inherit;
  background: #F8FAFC;
}

textarea {
  resize: vertical;
}

.form-field-checkbox {
  grid-template-columns: auto 1fr;
  align-items: flex-start;
  gap: 0.5rem;
}

.form-field-checkbox label {
  font-size: 0.8rem;
}

.btn-primary,
.btn-secondary {
  border-radius: 999px;
  border: 1px solid #818CF8;
  padding: 0.6rem 1.4rem;
  font: inherit;
  cursor: pointer;
  background: transparent;
  color: #2D3E4E;
  transition: background 160ms ease-out, color 160ms ease-out;
}

.btn-primary:hover,
.btn-primary:focus-visible,
.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: #818CF8;
  color: #F9FAFB;
}

.form-note {
  font-size: 0.8rem;
  color: #6b7280;
}

/* Footer */
.site-footer {
  border-top: 0.5px solid rgba(148, 163, 184, 0.6);
  background: #F8FAFC;
  padding: 2.5rem 1.5rem 2.75rem;
}

.footer-inner {
  max-width: 72rem;
  margin: 0 auto;
  display: grid;
  gap: 1.75rem;
}

.footer-meta p {
  margin: 0.1rem 0;
}

.footer-brand {
  font-weight: 500;
}

.footer-nav {
  order: -1;
}

.legal-list {
  list-style: none;
  padding: 0;
  margin: 0 0 0.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  inset-inline: 0.75rem;
  bottom: 0.75rem;
  background: rgba(15, 23, 42, 0.96);
  color: #e5e7eb;
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  max-width: 30rem;
  margin-inline: auto;
  z-index: 30;
  transform: translateY(150%);
  opacity: 0;
  pointer-events: none;
  transition: transform 200ms ease-out, opacity 200ms ease-out;
}

.cookie-banner.visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.cookie-inner {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cookie-inner p {
  font-size: 0.8rem;
  margin: 0;
}

.cookie-inner .btn-secondary {
  align-self: flex-start;
}

/* Scroll progress bar */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, #818CF8, #E0E7FF);
  z-index: 25;
  transform-origin: left center;
}

/* Responsive */
@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
  }

  .hero-text-block h1 {
    font-size: 2.4rem;
  }

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

  .section-space-grid,
  .section-advisory-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
  }

  .footer-inner {
    grid-template-columns: 1.4fr 1.2fr 1.2fr;
    align-items: flex-start;
  }
}

@media (min-width: 1024px) {
  .primary-nav {
    display: block;
  }

  .burger {
    display: none;
  }

  .mobile-menu {
    display: none;
  }

  .section {
    padding-block: 5rem;
  }
}