/*
 * SEOMasterz — Header & Navigation
 * File: css/header.css
 * FIXED: sticky both bars | button hard-right | color #ff5f15 | mobile menu
 */

:root {
  --color-primary:       #1a1a2e;
  --color-primary-dark:  #12122a;
  --color-secondary:     #ff5f15;
  --color-secondary-hov: #e04e08;
  --color-white:         #ffffff;
  --color-off-white:     #f8f8f8;
  --color-gray-100:      #f0f0f0;
  --color-gray-200:      #e5e5e5;
  --color-gray-400:      #aaa;
  --color-gray-600:      #666;
  --color-gray-800:      #2d2d2d;

  --header-height:  68px;
  --topbar-height:  38px;
  --total-offset:   calc(var(--topbar-height) + var(--header-height));

  --shadow-sm:  0 1px 4px rgba(0,0,0,.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,.14);
  --radius-sm:  6px;
  --radius-md:  10px;
  --font-nav:   'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --trans-fast: 150ms ease;
  --trans-base: 240ms ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
a   { text-decoration: none; }
ul, ol { list-style: none; }

body {
  padding-top: var(--total-offset);
  font-family: var(--font-nav);
}

.container {
  width: 100%; max-width: 1260px;
  margin: 0 auto; padding: 0 24px;
}

/* SKIP LINK */
.skip-link { position: absolute; left: -9999px; top: auto; z-index: 9999; }
.skip-link:focus {
  left: 16px; top: 8px;
  background: var(--color-secondary); color: var(--color-white);
  padding: 6px 14px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600;
}

/* TOP BAR */
.top-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1001;
  height: var(--topbar-height);
  background: linear-gradient(90deg, #0d0d20 0%, #1a1a2e 50%, #0d0d20 100%);
  border-bottom: 1px solid rgba(255,95,21,.20);
  display: flex; align-items: center;
}
.top-bar .container {
  display: flex; align-items: center;
  justify-content: space-between; gap: 12px;
}
.top-bar-left { display: flex; align-items: center; gap: 18px; }
.top-bar-left .tb-item {
  display: flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: rgba(255,255,255,.80);
  transition: color var(--trans-fast);
}
.top-bar-left .tb-item:hover { color: var(--color-secondary); }
.tb-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; border-radius: 50%;
  background: rgba(255,95,21,.16); color: var(--color-secondary);
  font-size: 10px; flex-shrink: 0; transition: background var(--trans-fast);
}
.top-bar-left .tb-item:hover .tb-icon { background: rgba(255,95,21,.32); }
.tb-divider { width: 1px; height: 14px; background: rgba(255,255,255,.14); flex-shrink: 0; }
.top-bar-right {
  display: flex; align-items: center; gap: 8px;
  font-size: 11px; color: rgba(255,255,255,.42);
  letter-spacing: .07em; text-transform: uppercase; font-weight: 500;
}
.top-bar-right::before {
  content: ''; display: inline-block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-secondary);
  animation: pulse-dot 2s ease-in-out infinite; flex-shrink: 0;
}
@keyframes pulse-dot {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:.3; transform:scale(.6); }
}

/* SITE HEADER */
.site-header {
  position: fixed;
  top: var(--topbar-height);
  left: 0; right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--trans-base), background var(--trans-base);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* HEADER INNER: flex — logo(fixed) | nav(flex-1) | cta(fixed) */
.header-inner {
  display: flex; align-items: center;
  height: var(--header-height);
}

/* LOGO */
.site-logo {
  flex: 0 0 200px; display: flex; align-items: center;
}
.site-logo a,
.site-logo .custom-logo-link { display: inline-flex; align-items: center; }
.site-logo img,
.site-logo .custom-logo { height: 48px; width: auto; display: block; }

/* NAV */
.site-nav {
  flex: 1; display: flex; align-items: center; justify-content: center;
}
.nav-menu { display: flex; align-items: center; gap: 0; flex-wrap: nowrap; }
.nav-menu > li > a {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 12px; font-size: 13.5px; font-weight: 500;
  color: var(--color-gray-800); border-radius: var(--radius-sm);
  white-space: nowrap; line-height: 1.2;
  transition: color var(--trans-fast), background var(--trans-fast);
}
.nav-menu > li > a:hover,
.nav-menu .current-menu-item > a,
.nav-menu .current-menu-ancestor > a {
  color: var(--color-secondary); background: rgba(255,95,21,.08);
}
.nav-menu .menu-item-has-children > a::after {
  content: ''; display: inline-block;
  width: 0; height: 0;
  border-left: 3.5px solid transparent; border-right: 3.5px solid transparent;
  border-top: 4px solid currentColor;
  opacity: .5; margin-top: 1px;
  transition: transform var(--trans-fast), opacity var(--trans-fast);
}
.nav-menu .menu-item-has-children:hover > a::after { transform: rotate(180deg); opacity: .85; }

/* DROPDOWN */
.nav-menu .menu-item-has-children { position: relative; }
.nav-menu .sub-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 235px;
  background: var(--color-white); border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg); border-top: 3px solid var(--color-secondary);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--trans-base), visibility var(--trans-base), transform var(--trans-base);
  z-index: 200; pointer-events: none;
}
.nav-menu .menu-item-has-children:hover > .sub-menu,
.nav-menu .menu-item-has-children:focus-within > .sub-menu {
  opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto;
}
.nav-menu .sub-menu li > a {
  display: block; padding: 10px 18px; font-size: 13px; font-weight: 400;
  color: var(--color-gray-800); border-bottom: 1px solid var(--color-gray-100);
  transition: color var(--trans-fast), background var(--trans-fast), padding-left var(--trans-fast);
}
.nav-menu .sub-menu li > a:hover {
  color: var(--color-secondary); background: var(--color-off-white); padding-left: 24px;
}
.nav-menu .sub-menu li:last-child > a {
  border-bottom: none; border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* CTA */
.header-cta {
  flex: 0 0 200px; display: flex;
  justify-content: flex-end; align-items: center;
}
.btn--primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: linear-gradient(135deg, #ff7433 0%, #ff5f15 60%, #e04e08 100%);
  color: var(--color-white) !important;
  font-family: var(--font-nav); font-size: 13.5px; font-weight: 700;
  padding: 10px 22px; border: none; border-radius: 50px; cursor: pointer;
  white-space: nowrap; letter-spacing: .02em;
  box-shadow: 0 4px 14px rgba(255,95,21,.38), inset 0 1px 0 rgba(255,255,255,.15);
  transition: background var(--trans-fast), transform var(--trans-fast), box-shadow var(--trans-fast);
}
.btn--primary:hover {
  background: linear-gradient(135deg, #ff8040 0%, #ff6820 60%, #e85810 100%);
  color: var(--color-white) !important;
  transform: translateY(-2px);
  box-shadow: 0 7px 20px rgba(255,95,21,.44), inset 0 1px 0 rgba(255,255,255,.15);
}
.btn--primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(255,95,21,.28); }

/* HAMBURGER */
.menu-toggle {
  display: none; flex-direction: column; justify-content: center;
  align-items: center; gap: 5px; width: 42px; height: 42px;
  background: none; border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm); cursor: pointer; flex-shrink: 0;
}
.menu-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--color-primary); border-radius: 2px; transition: all var(--trans-base);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* MOBILE DRAWER */
.mobile-drawer {
  position: fixed;
  top: var(--total-offset);
  left: 0; right: 0;
  background: var(--color-white);
  border-top: 2px solid var(--color-secondary);
  box-shadow: var(--shadow-lg);
  z-index: 997;
  max-height: calc(100vh - var(--total-offset));
  overflow-y: auto;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity var(--trans-base), visibility var(--trans-base), transform var(--trans-base);
  pointer-events: none;
}
.mobile-drawer.open {
  opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto;
}
.mobile-drawer .nav-menu {
  display: flex;             
  flex-direction: column;
  align-items: stretch;
  padding: 6px 0 4px;
}
.mobile-drawer .nav-menu > li { border-bottom: 1px solid var(--color-gray-100); }
.mobile-drawer .nav-menu > li:last-child { border-bottom: none; }
.mobile-drawer .nav-menu > li > a {
  padding: 13px 24px; font-size: 14px; border-radius: 0;
  justify-content: space-between; width: 100%;
}
.mobile-drawer .sub-menu {
  position: static; opacity: 1; visibility: visible; transform: none;
  box-shadow: none; border-top: none; border-radius: 0;
  border-left: 3px solid var(--color-secondary);
  margin-left: 20px; pointer-events: auto; min-width: unset; display: none;
}
.mobile-drawer .menu-item-has-children.mobile-open > .sub-menu { display: block; }
.mobile-drawer .sub-menu li > a { padding: 10px 16px; font-size: 13px; }
.mobile-cta-wrap { padding: 14px 24px 20px; }
.mobile-cta-wrap .btn--primary { width: 100%; justify-content: center; padding: 12px; font-size: 14px; }

/* BREADCRUMB */
.breadcrumb-section {
  background: var(--color-off-white);
  border-bottom: 1px solid var(--color-gray-200); padding: 14px 0;
}
.breadcrumb { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 13px; }
.breadcrumb a { color: var(--color-gray-600); transition: color var(--trans-fast); }
.breadcrumb a:hover { color: var(--color-secondary); }
.breadcrumb-sep { color: var(--color-gray-400); font-size: 11px; }
.breadcrumb-current { color: var(--color-primary); font-weight: 500; }

/* RESPONSIVE */
@media (max-width: 1100px) {
  .nav-menu > li > a { padding: 8px 9px; font-size: 12.5px; }
  .btn--primary      { padding: 9px 16px; font-size: 13px; }
  .site-logo  { flex: 0 0 170px; }
  .header-cta { flex: 0 0 170px; }
}
@media (max-width: 960px) {
  .site-nav   { display: none !important; }
  .header-cta { display: none !important; }
  .menu-toggle { display: flex; }
  .header-inner { justify-content: space-between; }
  .site-logo { flex: unset; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .site-logo img, .site-logo .custom-logo { height: 40px; }
  .top-bar { display: none; }
  body { padding-top: var(--header-height); }
  .site-header { top: 0; }
  .mobile-drawer { top: var(--header-height); }
}