/* ═══════════════════════════════════════════════════════════════
   SOLVAGENCE AGENCY — LAYOUT v3
   Announce · Nav · Container · Sections · Footer
   ═══════════════════════════════════════════════════════════════ */

/* ── ANNOUNCE BAR ────────────────────────────────── */
.announce-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--announce-h);
  z-index: 101;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--bd-subtle);
  overflow: hidden;
  display: flex; align-items: center;
}
.announce-track {
  display: flex;
  white-space: nowrap;
  animation: announceScroll 45s linear infinite;
  gap: 0;
}
.announce-item {
  display: flex; align-items: center; gap: 16px;
  padding: 0 28px;
  font-family: var(--f-heading);
  font-size: .63rem; font-weight: 500;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--tx-400);
  border-right: 1px solid var(--bd-subtle);
}
.announce-item .a-hl { color: var(--sv-teal-500); }
.announce-sep { color: var(--sv-blue-600); }
@keyframes announceScroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── NAV ─────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: var(--announce-h);
  left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex; align-items: center;
  transition: background var(--dur-md), backdrop-filter var(--dur-md),
              border-color var(--dur-md), box-shadow var(--dur-md);
  border-bottom: 1px solid transparent;
}
.site-nav.is-scrolled {
  background: rgba(3,8,18,.9);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-bottom-color: var(--bd-subtle);
  box-shadow: 0 4px 40px rgba(0,0,0,.5);
}

.nav-inner {
  display: flex; align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 24px;
}

/* Logo */
.nav-logo {
  display: flex; align-items: center; gap: 14px;
  text-decoration: none; flex-shrink: 0;
}
.nav-logo-img-wrap {
  width: 50px; height: 50px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  padding: 5px; flex-shrink: 0; overflow: hidden;
  transition: background var(--dur-sm), border-color var(--dur-sm), box-shadow var(--dur-sm);
}
.nav-logo:hover .nav-logo-img-wrap {
  background: rgba(255,255,255,.13);
  border-color: var(--bd-blue);
  box-shadow: 0 0 18px rgba(38,80,232,.14);
}
.nav-logo-img {
  width: 40px; height: 40px;
  object-fit: contain; display: block;
}

/* Language toggle */
.lang-toggle {
  display: flex; align-items: center;
  background: var(--bg-raised);
  border: 1px solid var(--bd-default);
  border-radius: var(--r-xs);
  overflow: hidden; flex-shrink: 0;
}
.lang-btn {
  padding: 5px 12px;
  font-family: var(--f-heading);
  font-size: .6rem; font-weight: 700;
  letter-spacing: .08em;
  color: var(--tx-400);
  background: none; border: none;
  transition: all var(--dur-xs);
  white-space: nowrap; line-height: 1.6;
}
.lang-btn.is-active {
  background: var(--sv-blue-500);
  color: #fff;
}
.lang-btn:not(.is-active):hover {
  color: var(--tx-200); background: var(--bg-overlay);
}
.lang-divider {
  width: 1px; height: 18px;
  background: var(--bd-default); flex-shrink: 0;
}
.nav-logo-gem {
  position: relative;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
}
.nav-logo-gem::before,
.nav-logo-gem::after {
  content: '';
  position: absolute; inset: 0;
  border: 1px solid var(--color-primary-border);
  transform: rotate(45deg);
  transition: transform var(--dur-md) var(--ease-out), border-color var(--dur-md);
}
.nav-logo-gem::after {
  transform: rotate(0deg) scale(.6);
  background: var(--color-primary-ghost);
  border-color: var(--bd-blue);
}
.nav-logo-gem span {
  position: relative; z-index: 1;
  font-family: var(--f-display);
  font-size: 1.1rem; font-weight: 400;
  color: var(--sv-blue-300);
}
.nav-logo:hover .nav-logo-gem::before { transform: rotate(90deg); border-color: var(--bd-blue); }

.nav-brand { line-height: 1; }
.nav-brand-name {
  font-family: var(--f-heading);
  font-size: .88rem; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--tx-200);
}
.nav-brand-sub {
  font-family: var(--f-heading);
  font-size: .6rem; font-weight: 500;
  letter-spacing: .28em; text-transform: uppercase;
  color: var(--sv-teal-500);
  margin-top: 4px;
}

/* Links */
.nav-links {
  display: flex; align-items: center; gap: 4px;
  flex: 1; justify-content: center;
}
.nav-link {
  font-family: var(--f-heading);
  font-size: .7rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--tx-400);
  padding: 8px 14px;
  border-radius: var(--r-xs);
  transition: color var(--dur-xs), background var(--dur-xs);
  position: relative;
}
.nav-link::after {
  content: ''; position: absolute;
  bottom: 4px; left: 50%; transform: translateX(-50%);
  width: 0; height: 1px;
  background: var(--g-brand);
  transition: width var(--dur-sm) var(--ease-out);
}
.nav-link:hover { color: var(--tx-200); }
.nav-link:hover::after,
.nav-link.is-active::after { width: 20px; }
.nav-link.is-active { color: var(--tx-200); }

/* Nav actions */
.nav-actions { display: flex; align-items: center; gap: 12px; }

/* Burger */
.nav-burger {
  display: none;
  flex-direction: column; gap: 5px;
  padding: 8px; border-radius: var(--r-xs);
  transition: background var(--dur-xs);
}
.nav-burger:hover { background: var(--bd-subtle); }
.nav-burger span {
  display: block; width: 22px; height: 1.5px;
  background: var(--tx-300);
  transition: all var(--dur-sm) var(--ease-out);
  transform-origin: center;
}
.nav-burger.is-open span:nth-child(1) { transform: rotate(45deg) translate(4.6px, 4.6px); }
.nav-burger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-burger.is-open span:nth-child(3) { transform: rotate(-45deg) translate(4.6px, -4.6px); }

/* Mobile drawer */
.nav-drawer {
  position: fixed;
  top: calc(var(--announce-h) + var(--nav-h));
  left: 0; right: 0;
  background: rgba(3,8,18,.97);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--bd-subtle);
  z-index: 99;
  padding: 28px 0 32px;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--dur-md) var(--ease-out);
}
.nav-drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}
.drawer-links { display: flex; flex-direction: column; }
.drawer-link {
  font-family: var(--f-heading);
  font-size: .78rem; font-weight: 500;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--tx-400);
  padding: 15px 28px;
  border-bottom: 1px solid var(--bd-subtle);
  transition: color var(--dur-xs), background var(--dur-xs), padding-left var(--dur-sm) var(--ease-out);
}
.drawer-link:hover { color: var(--sv-teal-500); background: var(--color-secondary-ghost); padding-left: 36px; }
.drawer-cta { padding: 20px 28px 0; }

/* ── CONTAINER ───────────────────────────────────── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 56px;
  position: relative; z-index: 2;
}
.container-md {
  max-width: var(--container-md);
  margin: 0 auto;
  padding: 0 56px;
  position: relative; z-index: 2;
}

/* ── SECTION SHELL ───────────────────────────────── */
section {
  position: relative;
  z-index: 2;
  isolation: isolate;
}
.sec      { padding: 120px 0; }
.sec-sm   { padding: 80px 0; }
.sec-lg   { padding: 160px 0; }
.sec-xl   { padding: 200px 0; }

/* ── GRID HELPERS ────────────────────────────────── */
.g-1  { display: grid; gap: 1px; background: var(--bd-subtle); }
.g-2  { display: grid; grid-template-columns: repeat(2,1fr); }
.g-3  { display: grid; grid-template-columns: repeat(3,1fr); }
.g-4  { display: grid; grid-template-columns: repeat(4,1fr); }
.g-5  { display: grid; grid-template-columns: repeat(5,1fr); }

.split-50  { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.split-40  { display: grid; grid-template-columns: 1fr 1.5fr; gap: 80px; align-items: start; }
.split-col { display: grid; grid-template-columns: 300px 1fr; gap: 80px; align-items: start; }

/* ── BG TEXTURES ─────────────────────────────────── */
.bg-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(38,80,232,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(38,80,232,.045) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.7) 0%, rgba(0,0,0,.1) 80%, transparent 100%);
}
.bg-noise {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.bg-radial-blue {
  position: absolute; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(38,80,232,.18) 0%, transparent 70%);
}
.bg-radial-teal {
  position: absolute; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(0,201,167,.12) 0%, transparent 70%);
}

/* ── FOOTER ──────────────────────────────────────── */
.site-footer {
  position: relative; z-index: 2;
  isolation: isolate;
  background: var(--bg-surface);
  border-top: 1px solid var(--bd-subtle);
}
.footer-main {
  display: grid; grid-template-columns: 300px 1fr;
  gap: 80px;
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--bd-subtle);
}
.footer-brand-logo { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.footer-brand-logo .nav-logo-img-wrap { width: 44px; height: 44px; }
.footer-brand-logo .nav-logo-img { width: 34px; height: 34px; }
.footer-brand-desc {
  font-size: .82rem; color: var(--tx-400); line-height: 1.8;
  margin-bottom: 28px;
}
.footer-socials { display: flex; gap: 10px; }
.footer-social {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--bd-default);
  color: var(--tx-400); font-size: .78rem; font-family: var(--f-heading);
  border-radius: var(--r-xs);
  transition: all var(--dur-sm) var(--ease-out);
  font-weight: 700;
}
.footer-social:hover {
  border-color: var(--bd-blue);
  color: var(--sv-blue-400);
  background: var(--color-primary-ghost);
  transform: translateY(-2px);
}

.footer-cols { display: grid; grid-template-columns: repeat(4,1fr); gap: 40px; }
.footer-col-head {
  font-family: var(--f-heading);
  font-size: .62rem; font-weight: 700;
  letter-spacing: .24em; text-transform: uppercase;
  color: var(--sv-teal-500);
  margin-bottom: 20px;
}
.footer-col-links { display: flex; flex-direction: column; gap: 10px; }
.footer-link {
  font-size: .82rem; color: var(--tx-400);
  transition: color var(--dur-xs), padding-left var(--dur-sm) var(--ease-out);
  display: flex; align-items: center; gap: 8px;
}
.footer-link:hover { color: var(--tx-300); padding-left: 4px; }

.footer-bottom {
  padding: 22px 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; flex-wrap: wrap;
}
.footer-copy {
  font-family: var(--f-heading);
  font-size: .62rem; font-weight: 400;
  letter-spacing: .1em;
  color: var(--tx-500);
  line-height: 1.7;
}
.footer-reg {
  font-family: var(--f-heading);
  font-size: .62rem; font-weight: 400;
  letter-spacing: .1em;
  color: var(--tx-500);
  text-align: right; line-height: 1.7;
}