/* =========================================================================
   DigiFlux — Layout: Header, Footer
   ========================================================================= */

/* ============================== HEADER ============================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow var(--t-med), border-color var(--t-med), background-color var(--t-med);
}

.site-header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-header);
  border-bottom-color: var(--df-gray-200);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  transition: transform var(--t-fast);
}
.logo:hover { transform: scale(1.03); }

.logo img {
  height: 40px;
  width: auto;
}

/* ----- Main nav (desktop) ----- */
.main-nav { display: none; }

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  list-style: none;
}

.main-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--df-navy);
  border-radius: var(--radius-sm);
  transition: color var(--t-fast);
}

/* Animated underline */
.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--df-blue-bright), var(--df-orange));
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width var(--t-med);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--df-blue-deep);
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after,
.main-nav a[aria-current="page"]::after {
  width: 70%;
}

.main-nav a[aria-current="page"] {
  color: var(--df-orange);
}

/* ----- Header actions ----- */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.header-actions .btn-login { display: none; }

/* ----- Mobile drawer panel ----- */
/* Uses viewport units (vw/dvh) because the parent .site-header has
   backdrop-filter, which creates a containing block for position:fixed
   descendants — so inset/100% would resolve against the 72px header,
   not the viewport. */
.mobile-panel {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: calc(100vh - var(--header-h));      /* Safari < 15.4 fallback */
  height: calc(100dvh - var(--header-h));     /* Modern (handles iOS URL bar) */
  background-color: var(--df-white);
  z-index: calc(var(--z-header) + 1);
  padding: 1.5rem var(--container-pad) 2rem;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  -webkit-transform: translateX(100%);
  transition: transform var(--t-med);
  -webkit-transition: -webkit-transform var(--t-med);
  visibility: hidden;
  box-shadow: -8px 0 24px rgba(0, 0, 0, 0.08);
}

.mobile-panel.is-open {
  transform: translateX(0);
  -webkit-transform: translateX(0);
  visibility: visible;
}

.mobile-panel ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-panel a {
  display: block;
  padding: 0.875rem 0.5rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--df-navy);
  border-bottom: 1px solid var(--df-gray-200);
}

.mobile-panel a:hover,
.mobile-panel a[aria-current="page"] { color: var(--df-blue-deep); }

.mobile-panel-cta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

/* ----- Mobile language switcher (inside drawer) ----- */
.mobile-lang {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--df-gray-200);
}

.mobile-lang-title {
  margin: 0 0 0.625rem;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--df-gray-500);
}

.mobile-lang-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-lang-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.625rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--df-navy);
  text-align: left;
  transition:
    background-color var(--t-fast),
    border-color var(--t-fast),
    color var(--t-fast);
}

.mobile-lang-btn .lang-flag {
  font-size: 1.375rem;
  line-height: 1;
}

.mobile-lang-btn:hover,
.mobile-lang-btn:focus-visible {
  background-color: var(--df-gray-100);
  outline: none;
}

.mobile-lang-btn.is-active,
.mobile-lang-btn[aria-selected="true"] {
  background-color: rgba(46, 134, 255, 0.10);
  border-color: rgba(46, 134, 255, 0.30);
  color: var(--df-blue-deep);
}

body.menu-open { overflow: hidden; }

/* ============================== FOOTER ============================== */
.site-footer {
  background: linear-gradient(180deg, var(--df-navy-darker) 0%, #060A1F 100%);
  color: rgba(255, 255, 255, 0.78);
  padding: 4rem 0 1.5rem;
  font-size: 0.9375rem;
  position: relative;
  overflow: hidden;
}

/* Subtle decorative dots */
.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.7) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.025;
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  position: relative;
}

.footer-col h4 {
  color: var(--df-white);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  position: relative;
  padding-bottom: 0.5rem;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--df-orange);
  border-radius: 2px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: color var(--t-fast), padding-left var(--t-fast);
}

.footer-col ul:not(.footer-contact) a:hover,
.footer-col ul:not(.footer-contact) a:focus-visible {
  color: var(--df-amber);
  padding-left: 4px;
}

.footer-brand .logo img {
  height: 40px;
  filter: brightness(0) invert(1);
}

.footer-tagline {
  margin: 1rem 0 1.25rem;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
}

.footer-disclaimer {
  font-size: 0.75rem;
  font-style: italic;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.footer-eu-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: rgba(255, 255, 255, 0.78);
}

.footer-contact svg {
  color: var(--df-amber);
  flex-shrink: 0;
}

.footer-contact a:hover,
.footer-contact a:focus-visible { color: var(--df-amber); }

.footer-social {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--df-white);
  transition:
    background-color var(--t-fast),
    transform var(--t-fast),
    box-shadow var(--t-fast);
}

.footer-social a:hover,
.footer-social a:focus-visible {
  background: linear-gradient(135deg, var(--df-orange), var(--df-amber));
  color: var(--df-white);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(244, 123, 32, 0.45);
}

/* Bottom strip — EU disclaimer logo + statement + copyright (stacked, centered) */
.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.8125rem;
  position: relative;
}

.footer-bottom-logo {
  display: block;
  max-width: 640px;
  width: 100%;
  height: auto;
  margin: 0 auto;
}

.footer-bottom-disclaimer {
  max-width: 880px;
  margin: 0 auto;
  color: var(--df-white);
  font-size: 0.8125rem;
  line-height: 1.65;
  font-weight: 400;
  font-style: italic;
  opacity: 0.92;
}

.footer-bottom-copy {
  display: block;
  margin-top: 0.25rem;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
}