/* =============================================
   MAIN.CSS — Core Layout & Design System
   ============================================= */

/* ── Header ── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--header-h);
  background: var(--glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid rgba(0,0,0,.04);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}
.site-header.scrolled {
  background: rgba(255,255,255,.92);
  box-shadow: 0 1px 20px rgba(0,0,0,.06);
}
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  gap: 16px;
}
.header-logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.35rem; font-weight: 800;
  color: var(--dark); letter-spacing: -.02em;
  text-decoration: none;
}
.logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 20px;
}
.logo-icon .material-icons-round { font-size: 20px; }

/* Desktop Nav */
.header-nav {
  display: none;
  align-items: center; gap: 8px;
}
.nav-link {
  padding: 8px 16px; border-radius: var(--r-full);
  font-size: .875rem; font-weight: 500; color: var(--text-2);
  transition: all .2s var(--ease);
}
.nav-link:hover, .nav-link.active {
  color: var(--dark); background: var(--bg-2);
}
@media(min-width:768px) {
  .header-nav { display: flex; }
  .menu-toggle { display: none !important; }
}

/* Header Actions */
.header-actions {
  display: flex; align-items: center; gap: 8px;
}
.header-btn { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  width: 40px; height: 40px; border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-2); transition: all .2s var(--ease);
  background: transparent;
}
.icon-btn:hover { background: var(--bg-2); color: var(--dark); }
.location-btn {
  padding: 6px 12px; border-radius: var(--r-full);
  background: var(--bg-2); font-size: .8125rem; font-weight: 500;
  color: var(--text-2); transition: all .2s var(--ease);
}
.location-btn:hover { background: var(--bg-3); }
.location-btn .material-icons-round { font-size: 16px; color: var(--primary); }
.location-btn .chevron { font-size: 16px; }
.location-label { max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 28px; border-radius: var(--r-full);
  font-size: .9375rem; font-weight: 600;
  transition: all .25s var(--ease);
  cursor: pointer; border: none; text-decoration: none;
  white-space: nowrap;
}
.btn-sm { padding: 8px 18px; font-size: .8125rem; }
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0,200,83,.4);
}
.btn-ghost {
  background: transparent; color: var(--dark);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-2); border-color: var(--bg-3); }
.btn-dark {
  background: var(--dark); color: #fff;
}
.btn-dark:hover { background: #2a2a42; transform: translateY(-1px); }

/* Hamburger */
.menu-toggle {
  width: 40px; height: 40px; border-radius: var(--r-md);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 5px; padding: 10px; background: transparent; cursor: pointer;
}
.hamburger-line {
  width: 20px; height: 2px; background: var(--dark); border-radius: 2px;
  transition: all .3s var(--ease);
}
.menu-toggle.active .hamburger-line:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.menu-toggle.active .hamburger-line:nth-child(2) { opacity: 0; }
.menu-toggle.active .hamburger-line:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ── Mobile Menu ── */
.mobile-menu {
  position: fixed; inset: 0; z-index: 500;
  pointer-events: none; visibility: hidden;
}
.mobile-menu.open { pointer-events: auto; visibility: visible; }
.mobile-menu-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,.3); opacity: 0;
  transition: opacity .3s var(--ease);
}
.mobile-menu.open .mobile-menu-backdrop { opacity: 1; }
.mobile-menu-panel {
  position: absolute; top: 0; right: 0; bottom: 0;
  width: 300px; max-width: 85vw;
  background: #fff; padding: 24px;
  transform: translateX(100%);
  transition: transform .35s var(--ease);
  overflow-y: auto;
}
.mobile-menu.open .mobile-menu-panel { transform: translateX(0); }
.mobile-menu-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 32px;
}
.mobile-menu-header .logo-text { font-size: 1.3rem; font-weight: 800; }
.mobile-nav-link {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 0; font-size: 1rem; font-weight: 500;
  color: var(--text); border-bottom: 1px solid var(--border-light);
  transition: color .2s;
}
.mobile-nav-link:hover { color: var(--primary); }
.mobile-nav-link .material-icons-round { font-size: 22px; color: var(--text-3); }
.mobile-nav-link.highlight { color: var(--primary); }
.mobile-nav-link.highlight .material-icons-round { color: var(--primary); }
.mobile-nav-link.text-error { color: var(--error); }
.mobile-menu-divider { height: 1px; background: var(--border); margin: 8px 0; }

/* ── Search Overlay ── */
.search-overlay {
  position: fixed; inset: 0; z-index: 600;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(40px);
  opacity: 0; visibility: hidden;
  transition: all .3s var(--ease);
  display: flex; align-items: flex-start; justify-content: center;
  padding-top: 100px;
}
.search-overlay.open { opacity: 1; visibility: visible; }
.search-overlay-inner { width: 100%; max-width: 600px; padding: 0 20px; }
.search-bar-large {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg-2); border-radius: var(--r-xl);
  padding: 16px 20px; border: 2px solid transparent;
  transition: border-color .2s var(--ease);
}
.search-bar-large:focus-within { border-color: var(--primary); background: #fff; }
.search-bar-large input {
  flex: 1; font-size: 1.125rem; font-weight: 500;
  background: transparent; color: var(--dark);
}
.search-bar-large input::placeholder { color: var(--text-3); }
.search-results { margin-top: 20px; }

/* ── Footer ── */
.site-footer {
  background: var(--dark); color: rgba(255,255,255,.7);
  padding: 60px 0 30px;
  margin-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
}
@media(max-width:767px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media(max-width:480px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-brand .footer-logo {
  display: flex; align-items: center; gap: 8px;
  font-size: 1.25rem; font-weight: 800; color: #fff;
  margin-bottom: 12px;
}
.footer-brand .footer-logo .material-icons-round {
  color: var(--primary); font-size: 24px;
}
.footer-tagline { font-size: .875rem; line-height: 1.6; color: rgba(255,255,255,.5); margin-bottom: 20px; }
.footer-socials { display: flex; gap: 12px; }
.footer-socials a {
  width: 40px; height: 40px; border-radius: var(--r-md);
  background: rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.5); transition: all .2s;
}
.footer-socials a:hover { background: var(--primary); color: #fff; }
.footer-links h5 {
  color: #fff; font-size: .8125rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .08em;
  margin-bottom: 16px;
}
.footer-links a {
  display: block; font-size: .875rem; color: rgba(255,255,255,.5);
  padding: 6px 0; transition: color .2s;
}
.footer-links a:hover { color: var(--primary); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 40px; padding-top: 24px;
}
.footer-bottom p { font-size: .8125rem; color: rgba(255,255,255,.35); }
.footer-badges { display: flex; gap: 16px; }
.badge-secure {
  display: flex; align-items: center; gap: 6px;
  font-size: .75rem; color: rgba(255,255,255,.4);
}
.badge-secure .material-icons-round { font-size: 16px; color: var(--primary); }

/* ── Bottom Nav ── */
.bottom-nav {
  position: fixed; bottom: 0; left: 0; right: 0;
  z-index: 300; height: var(--nav-h);
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0,0,0,.05);
  display: flex; align-items: center; justify-content: space-around;
  padding-bottom: var(--safe-b);
}
.bnav-item {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-size: .625rem; font-weight: 600; color: var(--text-3);
  padding: 8px 16px; border-radius: var(--r-lg);
  transition: all .2s var(--ease);
  text-decoration: none;
}
.bnav-item .material-icons-round { font-size: 24px; transition: all .2s; }
.bnav-item.active { color: var(--primary); }
.bnav-item.active .material-icons-round { color: var(--primary); }
@media(min-width:768px) {
  .bottom-nav { display: none; }
}

/* ── Toast ── */
.toast-container {
  position: fixed; bottom: calc(var(--nav-h) + 16px); left: 50%;
  transform: translateX(-50%); z-index: 700;
  display: flex; flex-direction: column; gap: 8px; align-items: center;
}
@media(min-width:768px) {
  .toast-container { bottom: 32px; right: 32px; left: auto; transform: none; align-items: flex-end; }
}

/* ── Page Body Spacing ── */
body { padding-top: var(--header-h); }
@media(max-width:767px) {
  body { padding-bottom: var(--nav-h); }
  .site-footer { margin-bottom: var(--nav-h); }
}