/* Shared site navbar — single source for static HTML + WP (landing, portfolio, subpages). */

:root {
  --site-navbar-height: 78px;
  --radius-full: 999px;
  --radius-md: 8px;
  --brand-blue: #3f75f5;
  --neutral-950: #0a0a0a;
  --neutral-800: #1f2937;
  --neutral-200: #e5e7eb;
  --white: #ffffff;
  --font-body: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
}

@media (max-width: 768px) {
  :root {
    --site-navbar-height: 64px;
  }
}

/* Fixed bar offset: home + WP landing; subpages use body.portfolio-page + their own spacing. */
body:not(.portfolio-page) {
  padding-top: var(--site-navbar-height);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding: 0;
  pointer-events: none;
  transition: padding 0.45s cubic-bezier(0.16, 1, 0.3, 1), transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.navbar.is-scrolled {
  padding: 10px 28px;
}

.navbar.is-hidden {
  transform: translateY(-100%);
  pointer-events: none;
}

.navbar .container {
  pointer-events: auto;
  position: relative;
  height: 78px;
  max-width: 1440px;
  width: 100%;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  background: transparent;
  border: 1px solid transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  /* Do not animate border-width (none ↔ 1px) — causes a brief dark edge at top-of-scroll */
  transition:
    max-width 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    height 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    border-radius 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    background 0.35s ease,
    box-shadow 0.35s ease,
    padding 0.45s cubic-bezier(0.16, 1, 0.3, 1),
    backdrop-filter 0.35s ease,
    -webkit-backdrop-filter 0.35s ease;
}

.navbar.is-scrolled .container {
  height: 56px;
  max-width: 1200px;
  padding: 0 12px 0 16px;
  border-radius: var(--radius-full);
  background: transparent;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  /* Same 1px transparent border as default — avoids 0↔1px border flash when toggling .is-scrolled */
  border: 1px solid transparent;
  /* Single soft shadow; omit tight 1px dark shadow that reads as a hairline during transition */
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.navbar.on-dark .container {
  border-color: transparent;
  box-shadow: none;
}

.navbar .btn-nav {
  font-size: 15px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  background: var(--neutral-950);
  color: var(--white);
  text-decoration: none;
  transition: background 0.2s ease, transform 0.15s ease, padding 0.35s ease, font-size 0.35s ease;
  white-space: nowrap;
  margin-left: auto;
  position: relative;
  z-index: 2;
}

.navbar.is-scrolled .btn-nav {
  padding: 9px 20px;
  font-size: 14px;
}

.navbar .btn-nav:hover {
  background: var(--neutral-800);
  transform: translateY(-1px);
}

.navbar.on-dark .btn-nav {
  background: var(--white);
  color: var(--neutral-950);
}

.navbar.on-dark .btn-nav:hover {
  background: var(--neutral-200);
}

.navbar .logo {
  display: flex;
  align-items: center;
  padding: 0;
  height: 100%;
  color: var(--neutral-950);
  transition: color 0.35s ease;
}

.navbar .logo-svg path {
  transition: fill 0.35s ease;
}

.navbar .logo-svg {
  height: 56px;
  width: auto;
  display: block;
  flex-shrink: 0;
  transform-origin: left center;
  transition: height 0.4s cubic-bezier(0.16, 1, 0.3, 1), transform 0.2s ease;
}

.navbar .logo:hover .logo-svg {
  transform: scale(1.04);
}

.navbar .logo-wordmark {
  display: block;
}

.navbar .logo-mark {
  display: none;
}

.navbar.is-scrolled .logo-wordmark {
  display: none;
}

.navbar.is-scrolled .logo-mark {
  display: block;
}

.navbar.is-scrolled .logo-svg {
  height: 40px;
}

/* Always scope tabs under .navbar so page-level resets (e.g. body.portfolio-page *) cannot zero padding. */
.navbar .nav-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  justify-content: center;
  max-width: min(720px, calc(100% - 300px));
  box-sizing: border-box;
}

.navbar .logo-lockup {
  display: none;
}

.navbar .nav-tabs__item--mobile-only {
  display: none;
}

.navbar .nav-tab {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--neutral-950);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  transition: color 0.25s ease, text-decoration-color 0.2s ease;
}

.navbar .nav-tab:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.navbar .nav-tab.is-active {
  color: var(--brand-blue);
  font-weight: 700;
}

.navbar .nav-tab:focus-visible {
  font-weight: 700;
  outline: 2px solid var(--brand-blue);
  outline-offset: 3px;
}

.navbar.is-scrolled .nav-tab {
  font-size: 13px;
  padding: 5px 12px;
}

body[data-navbar-theme="dark"] .navbar:not(.is-scrolled) .logo,
body[data-navbar-theme="dark"] .navbar:not(.is-scrolled) .nav-tab {
  color: var(--white);
}

body[data-navbar-theme="dark"] .navbar:not(.is-scrolled) .logo-svg path {
  fill: #fff !important;
}

body[data-navbar-theme="dark"] .navbar:not(.is-scrolled) .btn-nav {
  background: var(--white);
  color: var(--neutral-950);
}

.navbar.on-dark .logo,
.navbar.on-dark .nav-tab {
  color: var(--white);
}

.navbar.on-dark .logo-svg path {
  fill: var(--white) !important;
}

.navbar.on-dark .nav-tab:hover {
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.92);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

.navbar.on-dark .nav-tab:focus-visible {
  outline-color: rgba(255, 255, 255, 0.9);
}

.navbar.on-dark .nav-menu-toggle {
  color: var(--white);
}

/* Mobile menu — scoped under .navbar (same reason as .nav-tab). */
.navbar .nav-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--neutral-950);
  cursor: pointer;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}

.navbar .nav-menu-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.navbar .nav-menu-toggle[aria-expanded="true"] .nav-menu-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar .nav-menu-toggle[aria-expanded="true"] .nav-menu-toggle-bar:nth-child(2) {
  opacity: 0;
}

.navbar .nav-menu-toggle[aria-expanded="true"] .nav-menu-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.navbar .nav-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: rgba(0, 0, 0, 0.35);
  border: none;
  padding: 0;
  margin: 0;
}

body.nav-open .navbar .nav-backdrop {
  display: block;
}

@media (max-width: 768px) {
  body.nav-open {
    overflow: hidden;
    touch-action: none;
  }

  .navbar .container {
    height: 64px;
    padding: 0 18px;
  }

  .navbar .nav-menu-toggle {
    display: inline-flex;
    margin-left: 8px;
    margin-right: 0;
  }

  /* Mobile: wordmark + mark hidden; full lockup; header CTA moved into .nav-tabs. */
  .navbar .logo-wordmark,
  .navbar .logo-mark {
    display: none !important;
  }

  .navbar .logo-lockup {
    display: block;
    width: auto;
    height: 34px;
    max-width: min(280px, 78vw);
    object-fit: contain;
    object-position: left center;
  }

  .navbar .btn-nav {
    display: none;
  }

  .navbar .nav-tabs__item--mobile-only {
    display: list-item;
  }

  /* Full-bleed white sheet from the top of the viewport; top bar (logo / CTA / close) sits above via .container z-index. */
  .navbar .nav-tabs {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    transform: none;
    margin: 0;
    width: 100%;
    max-width: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 0 0 max(16px, env(safe-area-inset-bottom, 0));
    padding-top: calc(var(--site-navbar-height) + 64px);
    min-height: 100vh;
    min-height: 100dvh;
    box-sizing: border-box;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: var(--white);
    border-bottom: 1px solid var(--neutral-200);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    z-index: 100;
    display: none;
  }

  body.nav-open .navbar .nav-tabs {
    display: flex;
  }

  /* Open menu: one continuous white header row with the close control on the same surface as the sheet. */
  body.nav-open .navbar .container {
    position: relative;
    z-index: 102;
    max-width: 100% !important;
    width: 100%;
    background: var(--white);
    border-color: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: 1px solid var(--neutral-200);
  }

  /* Keep chrome above the full-bleed .nav-tabs layer (fixed sibling paints after logo in DOM). */
  body.nav-open .navbar .container > .logo,
  body.nav-open .navbar .container > .btn-nav,
  body.nav-open .navbar .container > .nav-menu-toggle {
    position: relative;
    z-index: 103;
  }

  body.nav-open .navbar .btn-nav {
    background: var(--neutral-950);
    color: var(--white);
  }

  body.nav-open .navbar .btn-nav:hover {
    background: var(--neutral-800);
  }

  body.nav-open .navbar .nav-menu-toggle {
    color: var(--neutral-950);
  }

  body.nav-open[data-navbar-theme="dark"] .navbar .logo-svg path,
  body.nav-open .navbar.on-dark .logo-svg path {
    fill: #3f75f5 !important;
  }

  .navbar .nav-tabs li {
    width: 100%;
  }

  .navbar .nav-tabs .nav-tab {
    display: block;
    padding: 14px 18px;
    border-radius: 0;
    text-align: left;
  }

  /* Dropdown uses a white panel; override light-on-dark navbar tab colors so links stay readable. */
  body.nav-open .navbar .nav-tabs .nav-tab,
  body.nav-open[data-navbar-theme="dark"] .navbar .nav-tabs .nav-tab,
  body.nav-open[data-navbar-theme="dark"] .navbar:not(.is-scrolled) .nav-tabs .nav-tab,
  body.nav-open .navbar.on-dark .nav-tabs .nav-tab {
    color: var(--neutral-950);
  }

  body.nav-open .navbar .nav-tabs .nav-tab.is-active,
  body.nav-open[data-navbar-theme="dark"] .navbar .nav-tabs .nav-tab.is-active,
  body.nav-open .navbar.on-dark .nav-tabs .nav-tab.is-active {
    color: var(--brand-blue);
  }

  body.nav-open .navbar.on-dark .nav-tabs .nav-tab:hover,
  body.nav-open[data-navbar-theme="dark"] .navbar .nav-tabs .nav-tab:hover {
    color: var(--neutral-950);
    text-decoration-color: rgba(10, 10, 10, 0.35);
  }

  body.nav-open .navbar.on-dark .nav-tabs .nav-tab:focus-visible,
  body.nav-open[data-navbar-theme="dark"] .navbar .nav-tabs .nav-tab:focus-visible {
    outline-color: var(--brand-blue);
  }

  .navbar.is-scrolled {
    padding: 8px 10px;
  }

  .navbar.is-scrolled .container {
    height: 48px;
    padding: 0 6px 0 12px;
    max-width: 100%;
  }

  .navbar.is-scrolled .nav-tabs {
    padding-top: calc(48px + 64px);
  }

  .navbar.is-scrolled .logo-svg {
    height: 32px;
  }
}