/* =====================================
   HEADER
   ===================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;

  background: rgba(7, 10, 18, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);

  border-bottom: 1px solid var(--border2);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

/* brand */

.brand {
  display: flex;
  align-items: center;
}

.brand-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
}

/* =====================================
   NAVIGATION
   ===================================== */

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav a {
  padding: 10px 12px;
  border-radius: 999px;

  font-size: 13px;
  font-weight: 600;

  color: rgba(255, 255, 255, 0.84);

  transition:
    background 220ms var(--ease),
    color 220ms var(--ease);
}

.nav a:hover {
  background: var(--soft2);
  color: #fff;
}

/* =====================================
   HEADER ACTIONS
   ===================================== */

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* language / icon button */

.icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;

  padding: 8px 12px;
  border-radius: 999px;

  background: var(--soft2);
  border: 1px solid var(--border2);

  cursor: pointer;

  transition:
    background 220ms var(--ease),
    transform 220ms var(--ease);
}

.icon-btn:hover {
  background: var(--soft);
  transform: translateY(-1px);
}

.icon-btn .flag,
.icon-btn .lang-label {
  font-size: 12px;
  font-weight: 700;
}

/* =====================================
   BURGER
   ===================================== */

.burger {
  width: 42px;
  height: 42px;

  display: none;
  place-items: center;

  border-radius: 999px;
  background: var(--soft2);
  border: 1px solid var(--border2);

  cursor: pointer;
  position: relative;
}

.burger span {
  position: absolute;
  width: 18px;
  height: 2px;

  background: rgba(255, 255, 255, 0.9);
  border-radius: 2px;

  transition:
    transform 260ms var(--ease),
    top 260ms var(--ease);
}

.burger span:nth-child(1) { top: 18px; }
.burger span:nth-child(2) { top: 24px; }

.burger.open span:nth-child(1) {
  top: 21px;
  transform: rotate(45deg);
}

.burger.open span:nth-child(2) {
  top: 21px;
  transform: rotate(-45deg);
}

/* =====================================
   BUTTONS (section-level)
   ===================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  padding: 12px 18px;
  border-radius: 999px;

  font-size: 13px;
  font-weight: 700;

  border: 1px solid var(--border2);

  transition:
    transform 220ms var(--ease),
    background 220ms var(--ease);
}

.btn.primary {
  background: linear-gradient(
    135deg,
    var(--blue),
    var(--indigo)
  );
}

.btn.ghost {
  background: var(--soft2);
}

.btn:hover {
  transform: translateY(-1px);
}

/* =====================================
   PANELS & CARDS (generic)
   ===================================== */

.panel,
.card {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow2);
}

.panel {
  padding: 22px;
}

.panel-title {
  font-weight: 700;
  margin-bottom: 10px;
}

.panel-text {
  color: var(--muted);
  line-height: 1.7;
  font-weight: 500;
}

.card {
  padding: 22px;
  transition:
    transform 240ms var(--ease),
    background 240ms var(--ease);
}

.card:hover {
  transform: translateY(-2px);
  background: var(--surface);
}

/* =====================================
   KICKER
   ===================================== */

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;

  padding: 8px 12px;
  margin-bottom: 14px;

  border-radius: 999px;
  background: var(--soft2);
  border: 1px solid var(--border2);

  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;

  color: rgba(255, 255, 255, 0.68);
}

/* =====================================
   ICONS
   ===================================== */

.icon,
.tab-ic {
  width: 18px;
  height: 18px;
  flex: none;

  border-radius: 6px;
  background: rgba(138, 92, 255, 0.18);
  border: 1px solid rgba(181, 140, 255, 0.22);
}

.tab-ic {
  margin-right: 10px;
}

/* =====================================
   MOBILE MENU
   ===================================== */

.mobile-panel {
  position: fixed;
  inset: auto 0 0 0;
  top: 72px;

  height: calc(100vh - 72px);

  background: rgba(7, 10, 18, 0.35);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  opacity: 0;
  pointer-events: none;

  transition: opacity 300ms var(--ease);
}

.mobile-panel.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-panel-inner {
  margin: 16px auto;
  width: min(var(--max), 100%);
  padding: 16px 24px;
}

.mobile-links a {
  display: block;
  padding: 16px;

  font-weight: 600;
  border-bottom: 1px solid var(--border2);
}

/* =====================================
   FOOTER
   ===================================== */

.site-footer {
  padding: 64px 0 48px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;

  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-email:hover {
  color: rgba(181, 140, 255, 0.92);
}

/* =====================================
   RESPONSIVE
   ===================================== */

@media (max-width: 980px) {
  .nav {
    display: none;
  }

  .burger {
    display: grid;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
  }
}