/* ============================================================
   Ufyro — header.css
   ============================================================ */

.site-header {
  position: fixed;
  top: 2px; /* offset for the red accent line */
  left: 0;
  right: 0;
  z-index: var(--z-header);
  padding-block: 1.2vw;
  transition: background var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              padding var(--duration-fast) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(9, 9, 15, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--color-border);
  padding-block: 0.7vw;
}

/* ── Header Container ── */
.header-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5vw;
}

/* ── Logo ── */
.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.header-logo img {
  height: 1.7vw;
  width: auto;
}

/* ── Nav ── */
.header-nav {
  display: flex;
  align-items: center;
  gap: 2.8vw;
}

.nav-link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: rgba(242, 242, 248, 0.55);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  transition: color var(--duration-normal) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-text);
}

/* ── Right Side ── */
.header-right {
  display: flex;
  align-items: center;
  gap: 1.5vw;
  flex-shrink: 0;
}

.header-phone {
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 0.3vw;
  transition: color var(--duration-normal) var(--ease-out);
}

.header-phone:hover {
  color: var(--color-text-muted);
}

.header-phone svg {
  width: 0.85vw;
  height: 0.85vw;
  flex-shrink: 0;
}

/* ── Hamburger — minimal lines, no border ── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 0.42vw;
  width: 2.6vw;
  height: 2.6vw;
  padding: 0.5vw;
  background: none;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-header) + 2);
}

.hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 0;
  transition: all var(--duration-normal) var(--ease-out);
  transform-origin: center;
}

/* Third bar is shorter — distinctive detail */
.hamburger span:last-child {
  width: 62%;
  transition: all var(--duration-normal) var(--ease-out),
              width var(--duration-normal) var(--ease-out);
}

.hamburger:hover span:last-child {
  width: 100%;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
  width: 100%;
}

body.menu-open {
  overflow: hidden;
}

body.menu-open .site-header {
  z-index: calc(var(--z-header) + 3);
}

/* ── Mobile Menu ── */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: var(--color-bg);
  z-index: calc(var(--z-header) + 1);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
  padding: 0 6vw 10vw;
  pointer-events: none;
  visibility: hidden;
  clip-path: inset(0 0 0 100%);
}

.mobile-menu.open {
  pointer-events: all;
  visibility: visible;
}

.mobile-menu-header {
  width: 100%;
  display: flex;
  align-items: center;
  height: 20vw;
  flex-shrink: 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu-logo img {
  height: 5.5vw;
  width: auto;
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex: 1;
  justify-content: center;
  width: 100%;
  gap: 0;
}

.mobile-menu .mobile-nav-link {
  display: block;
  font-family: var(--font-heading);
  font-size: 10vw;
  font-weight: var(--weight-black);
  color: var(--color-text);
  padding: 3vw 0;
  width: 100%;
  letter-spacing: -0.04em;
  line-height: 1;
  border-bottom: 1px solid var(--color-border);
  transition: color var(--duration-normal) var(--ease-out),
              padding-left var(--duration-fast) var(--ease-out);
}

.mobile-menu .mobile-nav-link:first-child {
  border-top: 1px solid var(--color-border);
}

.mobile-menu .mobile-nav-link:hover {
  color: var(--color-primary);
  padding-left: 2vw;
}

.mobile-menu-cta {
  width: 100%;
  flex-shrink: 0;
  padding-top: 6vw;
}

.mobile-menu-cta .btn-primary {
  width: 100%;
  justify-content: center;
  padding: 5vw 0;
  font-size: 4vw;
  border-radius: var(--radius-sm);
}

/* ── Responsive ── */
@media (max-width: 1023px) {
  .header-phone { display: none; }

  .header-container {
    height: 6vw;
  }
}

@media (max-width: 767px) {
  .header-nav { display: none; }

  .hamburger {
    display: flex;
    width: 10vw;
    height: 10vw;
    padding: 2vw;
    gap: 1.8vw;
  }

  .site-header {
    padding-block: 0;
    top: 2px;
  }

  .header-container {
    height: 18vw;
    max-width: 100%;
  }

  .header-logo img {
    height: 5.5vw;
  }

  .header-right .btn-primary {
    display: none;
  }
}

@media (min-width: 1440px) {
  .header-container {
    max-width: 1200px;
    padding-inline: 60px;
  }

  .header-logo img {
    height: 24px;
  }
}