/* ============================================
   Header — fixed, dropdowns
   ============================================ */

.header {
  position: fixed !important;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--sidebar-padding);
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav {
  transition: opacity .25s ease, visibility .25s ease, width .35s cubic-bezier(.4,0,.2,1);
}

/* ── Logo ── */

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  flex-shrink: 0;
  text-decoration: none;
  color: inherit;
}

.logo-lockup {
  display: block;
  width: auto;
  height: auto;
}
.header .logo-lockup { height: 100px; }
.footer-logo .logo-lockup { height: 120px; }

.logo-shield {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 20px;
  transition: width .35s cubic-bezier(.4,0,.2,1), height .35s cubic-bezier(.4,0,.2,1), border-radius .35s cubic-bezier(.4,0,.2,1);
}

.header--compact .logo-shield {
  width: 50px;
  height: 50px;
  border-radius: 14px;
}

.logo-shield img {
  display: block;
  height: 100%;
  width: auto;
}

.logo-divider {
  width: 1px;
  height: 48px;
  background: var(--color-text-primary);
  opacity: 0.2;
  flex-shrink: 0;
  transition: height .35s cubic-bezier(.4,0,.2,1);
}

.header--compact .logo-divider {
  height: 30px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-name {
  font-family: var(--font-family-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 0.04em;
  line-height: 1;
}

.logo-desc {
  font-size: 9px;
  color: var(--color-text-primary);
  line-height: 1.3;
}

/* ── Nav ── */

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin-left: auto;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  padding: 8px 0;
  position: relative;
}

.nav-link:hover { color: var(--color-text-primary); }

.nav-link .chevron {
  width: 10px;
  height: 10px;
  opacity: 0.8;
  transition: transform .25s ease;
}

.nav-item:hover .nav-link .chevron {
  transform: rotate(180deg);
}

.nav-item:hover .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 1px;
}

/* ── Dropdown ── */

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 220px;
  padding-top: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
  z-index: 999;
  pointer-events: none;
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.nav-dropdown-inner {
  padding: var(--space-sm) 0;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.nav-dropdown-title {
  display: none;
}

.nav-dropdown-grid {
  display: flex;
  flex-direction: column;
}

.nav-dropdown-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), background var(--transition-fast);
  padding: var(--space-sm) var(--space-lg);
  white-space: nowrap;
}

.nav-dropdown-link:hover {
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.06);
}

[data-theme="light"] .nav-dropdown-link:hover {
  background: rgba(0, 0, 0, 0.04);
}

/* ── Header actions ── */

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-left: auto;
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  background: rgba(255, 255, 255, 0.07);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-text-primary);
}

.theme-toggle svg { width: 18px; height: 18px; }

/* ── Header light mode overrides ── */

[data-theme="light"] .header {
  border-bottom-color: rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .header .logo-name {
  color: #1A1A2E;
}

[data-theme="light"] .header .logo-desc {
  color: #4A4A6A;
}

[data-theme="light"] .header .logo-divider {
  background: #1A1A2E;
}

[data-theme="light"] .nav-link {
  color: #4A4A6A;
}

[data-theme="light"] .nav-link:hover {
  color: #1A1A2E;
}

[data-theme="light"] .nav-item:hover .nav-link::after {
  background: #1A1A2E;
}

[data-theme="light"] .theme-toggle {
  color: #4A4A6A;
  border: 1px solid rgba(0, 0, 0, 0.10);
}

[data-theme="light"] .theme-toggle:hover {
  color: #1A1A2E;
  background-color: var(--color-bg-tertiary) !important;
}

/* ============================================
   Floating pill header (godaylight-style)
   ============================================ */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  height: auto;
  z-index: 1000;
  display: block;
  padding-top: 18px;
  pointer-events: none;        /* clicks pass through gutters; pill re-enables */
  background: none;
}
.glass-header,
.glass-header::after { background: none !important; backdrop-filter: none; -webkit-backdrop-filter: none; border: none; box-shadow: none; content: normal; }
.glass-header::after { display: none; }

.header-inner {
  pointer-events: auto;
  width: fit-content;
  max-width: calc(100% - 32px);
  margin: 0 auto;
  height: 78px;
  gap: 22px;
  padding: 10px 16px;
  background: #fff;
  border: 1px solid rgba(8,10,20,0.06);
  border-radius: 12px;
  box-shadow: 0 12px 34px rgba(8,10,20,0.20), 0 2px 8px rgba(8,10,20,0.10);
}

/* compact logo inside pill */
.header .logo { gap: 9px; }
.header .logo-mark { height: 36px; width: 36px; display: block; }
.header .logo-word {
  font-family: var(--font-family-head);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: #0E1424;
  line-height: 1;
}

/* nav links — dark on white pill */
.header .nav { gap: 22px; margin-left: 4px; }
.header .nav-link { color: #3A4257; font-size: 15px; font-weight: 500; padding: 6px 0; }
.header .nav-link:hover { color: #0E1424; }
.header .nav-link .chevron { opacity: 0.6; }
.header .nav-item:hover .nav-link::after { background: var(--color-accent-blue); }

/* dropdowns sit just under the pill */
.header .nav-dropdown { padding-top: 16px; }

/* actions + CTA */
.header-actions { gap: 10px; margin-left: 6px; }
.header .theme-toggle {
  width: 40px; height: 40px;
  border-radius: 9px;
  background: rgba(8,10,20,0.05);
  border: none;
  color: #3A4257;
}
.header .theme-toggle:hover { color: #0E1424; background: rgba(8,10,20,0.10) !important; }

.header-cta {
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 22px;
  border-radius: 9px;
  background: var(--color-accent-blue);
  color: #fff;
  font-size: 15px;
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.header-cta:hover {
  background: #004A9E;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0,87,184,0.4);
}

@media (max-width: 980px) {
  .header .nav { display: none; }
  .header-inner { gap: 12px; }
}

/* ── Theme-adaptive header ── */
.logo--light { display: none; }
[data-theme="dark"] .logo--dark  { display: none; }
[data-theme="dark"] .logo--light { display: block; }

[data-theme="dark"] .header-inner {
  background: rgba(18,21,30,0.72);
  border-color: rgba(255,255,255,0.09);
  box-shadow: 0 12px 34px rgba(0,0,0,0.45), 0 2px 8px rgba(0,0,0,0.30);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  backdrop-filter: blur(20px) saturate(1.4);
}
[data-theme="dark"] .header .nav-link { color: #C7CEE0; }
[data-theme="dark"] .header .nav-link:hover { color: #fff; }
[data-theme="dark"] .header .theme-toggle { background: rgba(255,255,255,0.08); color: #C7CEE0; }
[data-theme="dark"] .header .theme-toggle:hover { color: #fff; background: rgba(255,255,255,0.14) !important; }

/* ── Mobile nav (burger) ── */
.header-inner { position: relative; }
.nav-burger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: rgba(8,10,20,0.05);
  border: none;
  border-radius: 10px;
  cursor: pointer;
}
.nav-burger span {
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: #0E1424;
  transition: transform .25s ease, opacity .25s ease;
}
[data-theme="dark"] .nav-burger { background: rgba(255,255,255,0.08); }
[data-theme="dark"] .nav-burger span { background: #C7CEE0; }
.header.nav-open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header.nav-open .nav-burger span:nth-child(2) { opacity: 0; }
.header.nav-open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 980px) {
  .nav-burger { display: inline-flex; }
  .header .nav {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border: 1px solid rgba(8,10,20,0.06);
    border-radius: 12px;
    padding: 10px;
    box-shadow: 0 18px 44px rgba(8,10,20,0.22);
  }
  .header.nav-open .nav { display: flex; }
  .nav-item { width: 100%; }
  .header .nav .nav-link {
    display: flex;
    width: 100%;
    justify-content: space-between;
    padding: 13px 14px;
    border-radius: 8px;
  }
  .header .nav .nav-link:hover { background: rgba(8,10,20,0.05); }
  .nav-dropdown { display: none !important; }
  [data-theme="dark"] .header .nav {
    background: #1A2027;
    border-color: rgba(255,255,255,0.09);
  }
  [data-theme="dark"] .header .nav .nav-link:hover { background: rgba(255,255,255,0.07); }
}

@media (max-width: 560px) {
  .header-cta { display: none; }
  .header .logo-lockup { height: 64px; }
  .header-inner { gap: 8px; height: 66px; }
}