/* ============================================================
   overlay.css
   Main site navigation bar and hero card — the actual business
   content that sits on top of the decorative mockup background.
   ============================================================ */

/* ---------- Site Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-nav {
  position: relative; /* anchor for the mobile dropdown */
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: var(--overlay-nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--overlay-card-border);
}

.site-nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--overlay-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

/* Logo mark — height matches cap-height of the wordmark, width scales naturally */
.site-nav__logo-img {
  height: 1.4em;
  width: auto;
  display: block;
}

/* Decorative dot after logo wordmark */
.site-nav__logo::after {
  content: '.';
  color: var(--overlay-accent);
}

.site-nav__links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.site-nav__links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--overlay-text-dim);
  text-decoration: none;
  transition: color 0.2s ease;
  letter-spacing: 0.01em;
}

.site-nav__links a:hover {
  color: var(--overlay-text);
}

/* ---------- Hero Section ---------- */
.hero {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-xl) var(--space-lg);
}

/* Frosted-glass card — backdrop lets the colorful mockup panels show through */
.hero__card {
  background: var(--overlay-card-bg);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border: 1px solid var(--overlay-card-border);
  border-radius: var(--radius-lg);
  padding: 3rem 4rem;
  text-align: center;
  max-width: 36rem;
  width: 100%;
}

.hero__eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--overlay-accent);
  margin-bottom: var(--space-md);
}

.hero__heading {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--overlay-text);
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-lg);
}

.hero__body {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--overlay-text-dim);
  margin-bottom: var(--space-sm);
}

.hero__tagline {
  font-size: 1.05rem;
  font-style: italic;
  font-weight: 700;
  color: var(--overlay-text-dim);
  margin-bottom: var(--space-xl);
}

.hero__cta {
  display: inline-block;
  padding: 0.7rem 2.2rem;
  background: var(--overlay-accent);
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
  transition: background 0.2s ease, transform 0.15s ease;
}

.hero__cta:hover {
  background: var(--overlay-accent-hover);
  transform: translateY(-2px);
}

.hero__cta:focus-visible {
  background: var(--overlay-accent-hover);
  outline: 2px solid var(--overlay-accent);
  outline-offset: 3px;
}

/* ---------- Hamburger Button ---------- */
/* Hidden on desktop; shown via responsive.css on mobile */

.site-nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2rem;
  height: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
  /* Ensure it never shrinks in the flex nav row */
  flex-shrink: 0;
}

.site-nav__hamburger:hover {
  background: var(--overlay-hover-bg);
}

.site-nav__hamburger-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--overlay-text);
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Animate to × when menu is open */
.site-nav--open .site-nav__hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-nav--open .site-nav__hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.site-nav--open .site-nav__hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Language Switcher ---------- */
/* Dropdown sits as the last item in .site-nav__links */

.lang-switcher {
  position: relative;
  list-style: none;
  /* Visually separate from the nav links */
  margin-left: 0.5rem;
}

.lang-switcher__btn {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.2rem 0.55rem;
  background: transparent;
  border: 1px solid var(--overlay-border-dim);
  border-radius: var(--radius-sm);
  color: var(--overlay-text-dim);
  cursor: pointer;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.lang-switcher__btn:hover {
  border-color: var(--overlay-border-mid);
  color: var(--overlay-text);
  background: var(--overlay-divider-faint);
}

.lang-switcher__arrow {
  font-size: 0.65rem;
  line-height: 1;
  transition: transform 0.2s;
  /* Optical alignment */
  margin-top: 0.05em;
}

.lang-switcher--open .lang-switcher__arrow {
  transform: rotate(180deg);
}

.lang-switcher__menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 0.6rem);
  min-width: 9rem;
  background: var(--overlay-dropdown-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--overlay-card-border);
  border-radius: var(--radius-sm);
  list-style: none;
  padding: 0.3rem 0;
  z-index: 100;
  /* Subtle entrance shadow */
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.lang-switcher--open .lang-switcher__menu {
  display: block;
}

.lang-switcher__menu [role="option"] {
  cursor: pointer;
  padding: 0.55rem 1rem;
  font-size: 0.85rem;
  color: var(--overlay-text-dim);
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.lang-switcher__menu [role="option"]:hover {
  background: var(--overlay-accent-faint);
  color: var(--overlay-text);
}

.lang-switcher__menu [role="option"][aria-selected="true"] {
  color: var(--overlay-accent);
  font-weight: 600;
}