/* ======= STICKY HEADER ======= */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: backdrop-filter 0.4s ease, background-color 0.4s ease, border-color 0.4s ease;
}

.site-header.scrolled {
  backdrop-filter: blur(22px) !important;
  -webkit-backdrop-filter: blur(22px) !important;
  background: rgba(3, 8, 19, 0.78) !important;
  background-color: rgba(3, 8, 19, 0.78) !important;
  border-bottom-color: rgba(210, 171, 103, 0.10);
}

.site-header .site-header-inner {
  transition: padding 0.3s ease;
  gap: 24px;
  flex-wrap: nowrap;
}

.site-header.scrolled .site-header-inner {
  padding-top: 14px;
  padding-bottom: 14px;
}

.site-header .sinora-nav-logo {
  width: clamp(128px, 11vw, 176px);
  flex-shrink: 0;
}

.site-header .site-header-inner > div:first-child,
.site-header .site-header-inner > ul,
.site-header .site-header-inner > div.hidden.lg\:flex {
  flex-shrink: 0;
}

.site-header .site-header-inner > div:first-child > div,
.site-header .site-header-inner > ul,
.site-header .site-header-inner > div.hidden.lg\:flex,
.site-header .site-header-inner > div.hidden.lg\:flex a {
  white-space: nowrap;
}

.site-header .site-header-inner > ul {
  flex-wrap: nowrap;
}

.site-header .nav-link:hover {
  color: #fff;
}

.site-header .nav-link:hover::after {
  width: 22px;
}

@media (max-width: 1480px) {
  .site-header .site-header-inner > ul.hidden.lg\:flex,
  .site-header .site-header-inner > div.hidden.lg\:flex {
    display: none !important;
  }

  .site-header .hamburger.lg\:hidden {
    display: flex !important;
  }

  .mobile-menu.lg\:hidden {
    display: block !important;
  }
}

/* ======= MOBILE MENU ======= */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(3, 8, 19, 0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  transform: translateY(-100%);
  transition: transform 0.5s cubic-bezier(0.65, 0, 0.35, 1);
  overflow-y: auto;
}

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

.mobile-menu a {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.mobile-menu.open a {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.open a:nth-child(1) { transition-delay: 0.15s; }
.mobile-menu.open a:nth-child(2) { transition-delay: 0.22s; }
.mobile-menu.open a:nth-child(3) { transition-delay: 0.29s; }
.mobile-menu.open a:nth-child(4) { transition-delay: 0.36s; }
.mobile-menu.open a:nth-child(5) { transition-delay: 0.43s; }
.mobile-menu.open a:nth-child(6) { transition-delay: 0.50s; }
.mobile-menu.open a:nth-child(7) { transition-delay: 0.57s; }

.hamburger-line {
  transition: transform 0.4s cubic-bezier(0.65, 0, 0.35, 1), opacity 0.3s ease;
  transform-origin: center;
}

.hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

body.menu-open {
  overflow: hidden;
}

/* ======= FOOTER FLOW ======= */
.flow-node {
  position: relative;
  display: block;
  padding: 28px 26px 26px;
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(8, 18, 37, 0.55) 0%, rgba(3, 8, 19, 0.35) 100%);
  border: 1px solid rgba(210, 171, 103, 0.18);
  transition: border-color 0.4s ease, transform 0.4s ease;
  overflow: hidden;
}

.flow-node::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle at top right, rgba(210, 171, 103, 0.12), transparent 70%);
  pointer-events: none;
}

.flow-node:hover {
  border-color: rgba(210, 171, 103, 0.42);
  transform: translateY(-3px);
}

.flow-node-num {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 13px;
  font-weight: 500;
  color: #d2ab67;
  letter-spacing: 0.32em;
  margin-bottom: 18px;
}

.flow-node-title {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 2.25rem;
  font-weight: 500;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.flow-node-text {
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(232, 234, 240, 0.62);
}

.flow-arrow {
  position: relative;
  height: 1px;
  background: linear-gradient(270deg, rgba(210, 171, 103, 0.5), rgba(210, 171, 103, 0.15));
  margin-top: 60px;
}

.flow-arrow::after {
  content: '←';
  position: absolute;
  left: -2px;
  right: auto;
  top: -14px;
  color: #d2ab67;
  font-size: 22px;
  font-weight: 300;
}

/* ======= FOOTER COLUMNS ======= */
.footer-col-title {
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #d2ab67;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-col-title::before {
  content: '';
  width: 18px;
  height: 1px;
  background: rgba(210, 171, 103, 0.5);
}

.footer-link {
  display: block;
  color: rgba(232, 234, 240, 0.62);
  font-size: 14px;
  padding: 6px 0;
  transition: color 0.3s, transform 0.3s;
}

.footer-link:hover {
  color: #f3d18c;
  transform: translateX(4px);
}

.footer-contact-card {
  background: linear-gradient(160deg, rgba(8, 18, 37, 0.6), rgba(8, 18, 37, 0.2));
  border: 1px solid rgba(210, 171, 103, 0.22);
  border-radius: 16px;
  padding: 22px;
}

.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(210, 171, 103, 0.22);
  color: rgba(243, 209, 140, 0.8);
  transition: all 0.3s ease;
}

.social-icon:hover {
  border-color: #d2ab67;
  color: #f3d18c;
  background: rgba(210, 171, 103, 0.08);
  transform: translateY(-2px);
}

.signature-glow {
  background: radial-gradient(ellipse at center, rgba(210, 171, 103, 0.18) 0%, transparent 70%);
}

@media (max-width: 720px) {
  .site-header .site-header-inner {
    padding-left: 24px;
    padding-right: 24px;
  }

  .flow-node-title {
    font-size: 2rem;
  }
}