/* ==========================================================================
   Navbar, page header, footer, floating actions
   ========================================================================== */

/* ------------------------------------------------------------- navbar */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background-color .35s var(--ease), box-shadow .35s var(--ease),
              border-color .35s var(--ease), backdrop-filter .35s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header--solid {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line-soft);
  box-shadow: var(--shadow-nav);
}
.site-header--scrolled { --nav-h: 70px; }

/* Pages with a light background always need the solid treatment. */
.site-header--static { position: sticky; }

.nav {
  display: flex; align-items: center; gap: 1rem;
  height: var(--nav-h);
  transition: height .35s var(--ease);
}

.brand { display: flex; align-items: center; gap: .7rem; margin-right: auto; }
.brand__mark { width: 42px; height: 42px; flex: none; transition: transform .4s var(--ease); }
.brand:hover .brand__mark { transform: rotate(-6deg) scale(1.04); }
.brand__text { display: flex; flex-direction: column; line-height: 1.05; }
.brand__name {
  font-family: var(--font-display); font-weight: 800; font-size: 1.06rem;
  letter-spacing: -.015em; color: var(--navy-900); white-space: nowrap;
}
.brand__sub {
  font-size: .58rem; font-weight: 600; letter-spacing: .34em;
  text-transform: uppercase; color: var(--ink-500);
}

.nav__links { display: flex; align-items: center; gap: .1rem; }
.nav__link {
  position: relative; display: block;
  padding: .55rem .62rem; border-radius: var(--r-sm);
  font-family: var(--font-display); font-size: .885rem; font-weight: 600;
  color: var(--ink-700); white-space: nowrap;
  transition: color .2s var(--ease);
}
.nav__link::after {
  content: ""; position: absolute; left: .62rem; right: .62rem; bottom: .28rem;
  height: 2px; border-radius: 2px; background: var(--red-500);
  transform: scaleX(0); transform-origin: center;
  transition: transform .3s var(--ease);
}
.nav__link:hover { color: var(--navy-800); }
.nav__link:hover::after, .nav__link.is-active::after { transform: scaleX(1); }
.nav__link.is-active { color: var(--navy-900); }

.nav__cta { display: flex; align-items: center; gap: .5rem; }

/* Transparent-over-hero state */
.site-header--transparent .brand__name { color: #fff; }
.site-header--transparent .brand__sub { color: rgba(255, 255, 255, .62); }
.site-header--transparent .nav__link { color: rgba(255, 255, 255, .84); }
.site-header--transparent .nav__link:hover,
.site-header--transparent .nav__link.is-active { color: #fff; }
.site-header--transparent .nav__toggle { color: #fff; border-color: rgba(255, 255, 255, .3); }
.site-header--transparent .nav__phone { color: rgba(255, 255, 255, .82); }

.nav__phone {
  display: none; align-items: center; gap: .45rem;
  font-size: .85rem; font-weight: 600; color: var(--ink-600);
}
.nav__phone i { color: var(--red-500); }

.nav__toggle {
  display: none; place-items: center;
  width: 44px; height: 44px; border-radius: 12px;
  background: transparent; border: 1.5px solid var(--line);
  color: var(--navy-800); font-size: 1.05rem; cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease);
}
.nav__toggle:hover { background: var(--surface-2); }

/* -------------------------------------------------------- mobile menu */
.mobile-nav {
  position: fixed; inset: 0; z-index: 120;
  display: grid; grid-template-columns: 1fr min(400px, 88vw);
  visibility: hidden; pointer-events: none;
}
.mobile-nav.is-open { visibility: visible; pointer-events: auto; }
.mobile-nav__backdrop {
  background: rgba(4, 16, 31, .55);
  opacity: 0; transition: opacity .35s var(--ease);
  backdrop-filter: blur(2px);
}
.mobile-nav.is-open .mobile-nav__backdrop { opacity: 1; }

.mobile-nav__panel {
  background: #fff;
  display: flex; flex-direction: column;
  padding: 1.35rem var(--gutter) 2rem;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .38s var(--ease);
  box-shadow: -20px 0 60px rgba(4, 16, 31, .2);
}
.mobile-nav.is-open .mobile-nav__panel { transform: none; }

.mobile-nav__head {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 1.1rem; margin-bottom: .5rem; border-bottom: 1px solid var(--line-soft);
}
.mobile-nav__close {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 12px; border: 1.5px solid var(--line);
  background: #fff; color: var(--navy-800); font-size: 1.05rem; cursor: pointer;
}
.mobile-nav__links { display: grid; gap: .15rem; padding-block: .75rem; }
.mobile-nav__links a {
  display: flex; align-items: center; justify-content: space-between;
  padding: .85rem .25rem;
  font-family: var(--font-display); font-weight: 600; font-size: 1.02rem;
  color: var(--ink-900); border-bottom: 1px solid var(--line-soft);
}
.mobile-nav__links a i { color: var(--ink-400); font-size: .78rem; }
.mobile-nav__links a.is-active { color: var(--red-500); }
.mobile-nav__links a.is-active i { color: var(--red-500); }
.mobile-nav__cta { display: grid; gap: .65rem; margin-top: 1.4rem; }
.mobile-nav__contact {
  margin-top: 1.75rem; padding-top: 1.25rem; border-top: 1px solid var(--line-soft);
  display: grid; gap: .7rem; font-size: .9rem;
}
.mobile-nav__contact a { display: flex; gap: .65rem; align-items: center; color: var(--ink-600); }
.mobile-nav__contact i { color: var(--red-500); width: 18px; text-align: center; }

body.nav-open { overflow: hidden; }

@media (max-width: 1140px) {
  .nav__links, .nav__cta .btn--outline { display: none; }
  .nav__toggle { display: grid; }
}
/* The header carries the brand, eight links, the quote list and the CTA; the
   phone only earns its place once there is genuine room for it. */
@media (min-width: 1560px) {
  .nav__phone { display: flex; }
}
@media (max-width: 560px) {
  .nav__cta .btn { display: none; }
  .brand__mark { width: 38px; height: 38px; }
  .brand__name { font-size: .98rem; }
}

/* ---------------------------------------------------------- page hero */
.page-hero {
  position: relative;
  padding-top: calc(var(--nav-h) + clamp(3rem, 6vw, 5rem));
  padding-bottom: clamp(3rem, 6vw, 5rem);
  background: linear-gradient(150deg, var(--navy-850), var(--navy-950));
  color: #c6d5e7; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: var(--hero-image);
  background-size: cover; background-position: center;
  opacity: .2;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 420px at 88% 6%, rgba(27, 95, 191, .38), transparent 65%),
    linear-gradient(180deg, rgba(4, 16, 31, .55), rgba(4, 16, 31, .88));
}
.page-hero > .container { position: relative; z-index: 2; }
.page-hero h1 { color: #fff; max-width: 22ch; }
.page-hero__lead {
  margin-top: 1.15rem; max-width: 58ch; font-size: clamp(1rem, .96rem + .3vw, 1.14rem);
  color: #b3c6dc;
}
.page-hero .btn-row { margin-top: 2rem; }

.breadcrumb {
  display: flex; flex-wrap: wrap; align-items: center; gap: .5rem;
  font-size: .82rem; color: #8ba4c2; margin-bottom: 1.35rem;
}
.breadcrumb a { color: #b9cde6; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: .6rem; opacity: .6; }
.breadcrumb [aria-current] { color: #fff; font-weight: 600; }

/* -------------------------------------------------------------- footer */
.site-footer {
  background: linear-gradient(170deg, var(--navy-900) 0%, var(--navy-950) 100%);
  color: #94aac4; position: relative;
}
.site-footer::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--red-500) 0%, var(--navy-700) 45%, var(--blue-600) 100%);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.55fr 1fr 1fr 1.25fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-block: clamp(3.25rem, 6vw, 4.75rem);
}
@media (max-width: 980px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__grid { grid-template-columns: 1fr; gap: 2.25rem; } }

.footer__brand { display: flex; align-items: center; gap: .75rem; margin-bottom: 1.25rem; }
.footer__brand .brand__name { color: #fff; }
.footer__brand .brand__sub { color: rgba(255, 255, 255, .5); }
.footer__about { font-size: .93rem; color: #90a6c0; max-width: 42ch; }

.footer__title {
  font-family: var(--font-display); font-size: .82rem; font-weight: 700;
  letter-spacing: .13em; text-transform: uppercase; color: #fff;
  margin-bottom: 1.35rem; position: relative; padding-bottom: .7rem;
}
.footer__title::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 26px; height: 2px; background: var(--red-500); border-radius: 2px;
}
.footer__list { display: grid; gap: .7rem; }
.footer__list a, .footer__list span { font-size: .92rem; color: #96abc5; transition: color .2s var(--ease), padding-left .2s var(--ease); }
.footer__list a { display: inline-flex; align-items: center; gap: .5rem; }
.footer__list a::before {
  content: "\f105"; font-family: "Font Awesome 6 Free"; font-weight: 900;
  font-size: .7rem; color: var(--red-500); opacity: 0; transition: opacity .2s var(--ease);
}
.footer__list a:hover { color: #fff; }
.footer__list a:hover::before { opacity: 1; }

.footer__contact { display: grid; gap: 1rem; }
.footer__contact li { display: flex; gap: .85rem; align-items: flex-start; font-size: .92rem; }
.footer__contact i {
  flex: none; width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 10px; background: rgba(255, 255, 255, .07);
  color: #9fc2f2; font-size: .85rem;
}
.footer__contact a { color: #b7c9de; }
.footer__contact a:hover { color: #fff; }
.footer__contact small { display: block; color: #6f87a3; font-size: .78rem; }

.footer__socials { display: flex; gap: .6rem; margin-top: 1.75rem; }
.footer__socials a {
  width: 40px; height: 40px; display: grid; place-items: center;
  border-radius: 12px; background: rgba(255, 255, 255, .07);
  color: #cfe0f5; font-size: .95rem;
  transition: background-color .25s var(--ease), transform .25s var(--ease), color .25s var(--ease);
}
.footer__socials a:hover { background: var(--red-500); color: #fff; transform: translateY(-3px); }

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, .09);
  padding-block: 1.5rem;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 1rem; font-size: .85rem; color: #7e94ae;
}
.footer__bottom nav { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.footer__bottom a { color: #93a9c3; }
.footer__bottom a:hover { color: #fff; }

/* ---------------------------------------------------- floating actions */
.float-actions {
  position: fixed; right: clamp(1rem, 2.2vw, 1.6rem); bottom: clamp(1rem, 2.2vw, 1.6rem);
  z-index: 90; display: flex; flex-direction: column; align-items: flex-end; gap: .7rem;
}
.float-btn {
  position: relative;
  width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  color: #fff; font-size: 1.4rem; border: none; cursor: pointer;
  box-shadow: 0 12px 28px rgba(4, 16, 31, .28);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), background-color .25s var(--ease);
}
.float-btn:hover { transform: translateY(-4px) scale(1.05); }
.float-btn--whatsapp { background: #25d366; }
.float-btn--whatsapp::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, .55);
  animation: pulse-ring 2.6s var(--ease) infinite;
}
.float-btn--wechat { background: var(--navy-800); width: 48px; height: 48px; font-size: 1.2rem; }
.float-btn--wechat:hover { background: var(--navy-700); }
.float-btn--top {
  background: #fff; color: var(--navy-800); width: 44px; height: 44px; font-size: .95rem;
  border: 1px solid var(--line);
  opacity: 0; pointer-events: none; transform: translateY(10px);
}
.float-btn--top.is-visible { opacity: 1; pointer-events: auto; transform: none; }

.float-tip {
  position: absolute; right: calc(100% + 12px); top: 50%; transform: translateY(-50%) scale(.9);
  background: var(--navy-900); color: #fff; font-size: .8rem; font-weight: 600;
  padding: .45rem .8rem; border-radius: var(--r-sm); white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.float-btn:hover .float-tip { opacity: 1; transform: translateY(-50%) scale(1); }

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: .9; }
  70% { transform: scale(1.5); opacity: 0; }
  100% { transform: scale(1.5); opacity: 0; }
}
@media (max-width: 560px) {
  .float-btn { width: 52px; height: 52px; font-size: 1.3rem; }
  .float-btn--wechat { width: 44px; height: 44px; }
  .float-tip { display: none; }
}

/* ------------------------------------------------------------- modal */
.modal {
  position: fixed; inset: 0; z-index: 130;
  display: grid; place-items: center; padding: 1.5rem;
  background: rgba(4, 16, 31, .6); backdrop-filter: blur(3px);
  opacity: 0; visibility: hidden; transition: opacity .3s var(--ease), visibility .3s;
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal__panel {
  background: #fff; border-radius: var(--r-xl); padding: 2rem;
  max-width: 380px; width: 100%; text-align: center;
  transform: translateY(18px) scale(.97); transition: transform .35s var(--ease);
  box-shadow: var(--shadow-lg);
}
.modal.is-open .modal__panel { transform: none; }
.modal__panel img { margin: 1.25rem auto .5rem; width: 210px; }
.modal__close {
  position: absolute; top: 1.25rem; right: 1.25rem;
  width: 42px; height: 42px; border-radius: 50%; border: none;
  background: rgba(255, 255, 255, .14); color: #fff; font-size: 1.05rem; cursor: pointer;
}
.modal__close:hover { background: rgba(255, 255, 255, .26); }

/* ------------------------------------------------------------ messages */
.flash-stack {
  position: fixed; z-index: 140; top: calc(var(--nav-h) + 12px); right: var(--gutter);
  display: grid; gap: .6rem; width: min(420px, calc(100vw - 2 * var(--gutter)));
}
.flash {
  display: flex; gap: .8rem; align-items: flex-start;
  padding: .95rem 1.1rem; border-radius: var(--r-md);
  background: #fff; border: 1px solid var(--line);
  border-left: 4px solid var(--blue-600);
  box-shadow: var(--shadow-md); font-size: .92rem; color: var(--ink-700);
  animation: flash-in .45s var(--ease);
}
.flash--success { border-left-color: #15a05a; }
.flash--success i { color: #15a05a; }
.flash--error { border-left-color: var(--red-500); }
.flash--error i { color: var(--red-500); }
.flash i { margin-top: .15rem; font-size: 1rem; }
.flash button {
  margin-left: auto; background: none; border: none; color: var(--ink-400);
  cursor: pointer; font-size: .9rem; padding: 0 .2rem;
}
@keyframes flash-in { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }