/* ================= Header ================= */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  height: var(--header-h);
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-med) var(--ease), background-color var(--dur-med) var(--ease);
}
.site-header.is-scrolled { border-bottom-color: var(--divider); }

.site-header__inner {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-6);
}

.brand { display: flex; align-items: center; gap: var(--sp-3); flex-shrink: 0; }
.brand img { height: 30px; width: auto; }
.brand img.logo--dark { display: block; }
.brand img.logo--light { display: none; }
:root[data-theme="light"] .brand img.logo--dark { display: none; }
:root[data-theme="light"] .brand img.logo--light { display: block; }
.brand .brand-name { font-size: var(--fs-small); letter-spacing: var(--ls-wide); text-transform: uppercase; font-weight: 700; display: none; }

.footer-brand img.logo--dark { display: block; }
.footer-brand img.logo--light { display: none; }
:root[data-theme="light"] .footer-brand img.logo--dark { display: none; }
:root[data-theme="light"] .footer-brand img.logo--light { display: block; }

.nav-primary { display: none; }
@media (min-width: 1080px) {
  .nav-primary { display: flex; align-items: center; gap: var(--sp-7); }
}
.nav-primary__list { display: flex; align-items: center; gap: var(--sp-7); }
.nav-primary__link {
  position: relative;
  font-size: var(--fs-small);
  letter-spacing: var(--ls-wide);
  padding-block: var(--sp-2);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
}
.nav-primary__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--dur-fast) var(--ease);
}
.nav-primary__link:hover::after,
.nav-primary__link.is-active::after { transform: scaleX(1); }
.nav-primary__item { position: relative; }

.nav-dropdown {
  position: absolute;
  top: calc(100% + 14px);
  inset-inline-start: -1rem;
  min-width: 240px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow-soft);
  padding: var(--sp-3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), visibility var(--dur-fast);
}
.nav-primary__item:hover .nav-dropdown,
.nav-primary__item:focus-within .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a {
  display: block;
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--fs-small);
  border-radius: var(--radius-sm);
}
.nav-dropdown a:hover { background: var(--bg-soft); }

.header-actions { display: flex; align-items: center; gap: var(--sp-4); }
.icon-btn {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--surface-border);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.icon-btn:hover { border-color: var(--surface-border-strong); transform: translateY(-1px); }
.icon-btn svg { width: 18px; height: 18px; }
.theme-toggle .theme-icon { display: none; }
.theme-toggle .theme-icon svg { width: 18px; height: 18px; }
:root[data-theme="dark"] .theme-toggle .theme-icon--to-light { display: inline-flex; }
:root[data-theme="light"] .theme-toggle .theme-icon--to-dark { display: inline-flex; }

.header-actions .nav-cta { display: none; }
@media (min-width: 1080px) {
  .header-actions .nav-cta { display: inline-flex; padding: var(--sp-3) var(--sp-5); }
}

.lang-toggle {
  font-size: var(--fs-small);
  letter-spacing: var(--ls-wide);
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--surface-border);
  border-radius: 999px;
}
.lang-toggle:hover { border-color: var(--surface-border-strong); }

.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  border: none; background: transparent; cursor: pointer;
}
@media (min-width: 1080px) { .menu-toggle { display: none; } }
.menu-toggle span { display: block; height: 1.5px; background: var(--text-primary); transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease); }
.menu-toggle span:nth-child(1) { width: 22px; }
.menu-toggle span:nth-child(2) { width: 16px; align-self: flex-end; }
.menu-toggle span:nth-child(3) { width: 22px; }
[dir="rtl"] .menu-toggle span:nth-child(2) { align-self: flex-start; }

/* Mobile drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  padding: var(--sp-8) var(--container-pad);
  transform: translateY(-100%);
  transition: transform var(--dur-med) var(--ease);
  overflow-y: auto;
}
.mobile-drawer.is-open { transform: translateY(0); }
.mobile-drawer__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--sp-8); }
.mobile-drawer__list { display: flex; flex-direction: column; gap: var(--sp-5); }
.mobile-drawer__list a { font-size: var(--fs-h3); font-weight: 500; }
.mobile-drawer__sub { display: flex; flex-direction: column; gap: var(--sp-3); padding-inline-start: var(--sp-5); margin-top: var(--sp-3); }
.mobile-drawer__sub a { font-size: var(--fs-body); color: var(--text-secondary); font-weight: 400; }
.mobile-drawer__footer { margin-top: auto; padding-top: var(--sp-7); display: flex; flex-direction: column; gap: var(--sp-5); border-top: 1px solid var(--divider); }
body.no-scroll { overflow: hidden; }

/* ================= Footer ================= */
.site-footer { background: var(--bg-soft); border-top: 1px solid var(--divider); }
.footer-top {
  padding-block: var(--sp-9);
  display: grid;
  gap: var(--sp-8);
  grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
}
@media (max-width: 900px) { .footer-top { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-top { grid-template-columns: 1fr; } }
.footer-brand img { height: 34px; margin-bottom: var(--sp-5); }
.footer-col-title { font-size: var(--fs-small); letter-spacing: var(--ls-wide); text-transform: uppercase; margin-bottom: var(--sp-5); color: var(--text-secondary); }
.footer-links { display: flex; flex-direction: column; gap: var(--sp-3); }
.footer-links a { font-size: var(--fs-small); color: var(--text-primary); }
.footer-links a:hover { color: var(--text-secondary); }
.footer-social { display: flex; gap: var(--sp-3); margin-top: var(--sp-5); }
.newsletter-form { display: flex; margin-top: var(--sp-4); border-bottom: 1px solid var(--surface-border-strong); padding-bottom: var(--sp-2); }
.newsletter-form input { flex: 1; background: transparent; border: none; padding: var(--sp-2) 0; font-size: var(--fs-small); }
.newsletter-form input::placeholder { color: var(--text-muted); }
.newsletter-form button { border: none; background: transparent; font-size: var(--fs-small); text-decoration: underline; cursor: pointer; }

.footer-bottom {
  border-top: 1px solid var(--divider);
  padding-block: var(--sp-5);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  font-size: var(--fs-micro);
  color: var(--text-muted);
}
.footer-bottom-links { display: flex; gap: var(--sp-5); }

/* ================= Hero ================= */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding-top: var(--header-h);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  z-index: -1;
}
.hero__bg svg { width: 100%; height: 100%; }
.hero__content { position: relative; z-index: 1; }
.hero__eyebrow { margin-bottom: var(--sp-6); }
.hero__title { max-width: 20ch; }
.hero__sub { max-width: 46ch; margin-top: var(--sp-6); }
.hero__actions { display: flex; gap: var(--sp-4); margin-top: var(--sp-8); flex-wrap: wrap; }
.hero__scroll {
  position: absolute;
  bottom: var(--sp-7);
  inset-inline-start: var(--container-pad);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--text-secondary);
}
.hero__scroll-line { width: 1px; height: 40px; background: var(--divider); position: relative; overflow: hidden; }
.hero__scroll-line::after {
  content: ""; position: absolute; inset-inline: 0; top: 0; height: 40%;
  background: var(--text-primary);
  animation: scrollLine 2.2s var(--ease) infinite;
}
@keyframes scrollLine { 0% { top: -40%; } 100% { top: 100%; } }

/* Page hero (sub-pages) */
.page-hero {
  padding-top: calc(var(--header-h) + var(--sp-9));
  padding-bottom: var(--sp-8);
}
.page-hero__title { margin-top: var(--sp-5); max-width: 22ch; }
.breadcrumb { display: flex; align-items: center; gap: var(--sp-2); font-size: var(--fs-micro); color: var(--text-muted); margin-bottom: var(--sp-6); flex-wrap: wrap; }
.breadcrumb a:hover { color: var(--text-primary); }
.breadcrumb span[aria-hidden] { opacity: 0.5; }

/* ================= Section header ================= */
.section-head { max-width: 760px; margin-bottom: var(--sp-8); }
.section-head--split { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--sp-6); flex-wrap: wrap; }
.section-head h2 { margin-top: var(--sp-4); }
.section-head p { margin-top: var(--sp-5); }

/* ================= Grids ================= */
.grid { display: grid; gap: var(--sp-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-8); align-items: center; }
@media (max-width: 900px) { .split { grid-template-columns: 1fr; } }

/* ================= CTA band ================= */
.cta-band {
  background: var(--bg-elevated);
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
  padding-block: var(--sp-9);
  text-align: center;
}
.cta-band h2 { max-width: 24ch; margin-inline: auto; }
.cta-band p { max-width: 46ch; margin-inline: auto; margin-top: var(--sp-5); }
.cta-band .btn { margin-top: var(--sp-7); }