/* ============================================================
   navbar.css — Pureframe Labs
   Top nav, mono links, ink mobile drawer
   ============================================================ */

body.menu-open {
  overflow: hidden;
}

/* ── nav ─────────────────────────────────────────────────────── */
nav#navbar {
  position: fixed;
  top: 0;
  left: var(--rail);
  right: 0;
  height: var(--nav-h);
  z-index: 1040;
  border-bottom: 1px solid var(--hair);
  background: color-mix(in srgb, var(--bone) 80%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: left .2s ease, transform .3s cubic-bezier(.22, 1, .36, 1), background .3s ease;
}

nav#navbar.scrolled {
  background: color-mix(in srgb, var(--bone) 92%, transparent);
}

nav#navbar.nav-hidden {
  transform: translateY(-100%);
}

nav#navbar.nav-menu-open {
  transform: translateY(0) !important;
}

.nav-inner {
  max-width: none;
  height: 100%;
  padding: 0 var(--gut);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
}

/* ── logo / brand ────────────────────────────────────────────── */
.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  grid-column: 1;
  justify-self: start;
  flex-shrink: 0;
}

.logo img {
  height: 24px;
  width: auto;
  display: block;
}

.logo-wordmark {
  font-family: var(--display);
  font-variation-settings: 'wdth' 78;
  font-weight: 900;
  font-size: 16px;
  letter-spacing: -.01em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
}

/* ── nav links (desktop) ─────────────────────────────────────── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  grid-column: 2;
  justify-self: center;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-2);
  padding: 8px 13px;
  position: relative;
  transition: color .2s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 3px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s cubic-bezier(.22, 1, .36, 1);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

/* ── nav CTA ─────────────────────────────────────────────────── */
.btn-nav-calendly {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 11px 18px;
  border: 1.5px solid var(--ink);
  background: var(--ink);
  color: var(--bone);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: relative;
  flex-shrink: 0;
  grid-column: 3;
  justify-self: end;
  transition: opacity .2s;
}

.btn-nav-calendly:hover {
  opacity: .82;
}

/* ── hamburger ───────────────────────────────────────────────── */
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 1041;
  flex-shrink: 0;
  grid-column: 3;
  justify-self: end;
  -webkit-tap-highlight-color: transparent;
}

.hamburger-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--ink);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  transition:
    transform .35s cubic-bezier(.22, 1, .36, 1),
    opacity .25s ease;
}

.hamburger-bar:nth-child(1) { top: 13px; }
.hamburger-bar:nth-child(2) { top: 20px; }
.hamburger-bar:nth-child(3) { top: 27px; }

.hamburger.active .hamburger-bar:nth-child(1) {
  transform: translateX(-50%) translateY(7px) rotate(45deg);
  background: var(--red);
}

.hamburger.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .hamburger-bar:nth-child(3) {
  transform: translateX(-50%) translateY(-7px) rotate(-45deg);
  background: var(--red);
}

/* ── mobile drawer ───────────────────────────────────────────── */
.mobile-menu {
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1020;

  background: var(--ink);
  display: flex;
  flex-direction: column;
  padding: 12px var(--gut) 32px;

  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition:
    opacity .35s cubic-bezier(.22, 1, .36, 1),
    transform .35s cubic-bezier(.22, 1, .36, 1),
    visibility 0s .35s;

  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition:
    opacity .35s cubic-bezier(.22, 1, .36, 1),
    transform .35s cubic-bezier(.22, 1, .36, 1),
    visibility 0s 0s;
}

.mobile-menu a {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(241, 235, 225, .72);
  padding: 18px 4px;
  border-bottom: 1px solid rgba(241, 235, 225, .14);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color .25s ease, padding-left .25s ease;

  opacity: 0;
  transform: translateY(10px);
}

.mobile-menu.open a {
  opacity: 1;
  transform: translateY(0);
  transition:
    opacity .4s cubic-bezier(.22, 1, .36, 1),
    transform .4s cubic-bezier(.22, 1, .36, 1),
    color .25s ease,
    padding-left .25s ease;
}

.mobile-menu.open a:nth-child(1) { transition-delay: .05s, .05s; }
.mobile-menu.open a:nth-child(2) { transition-delay: .1s, .1s; }
.mobile-menu.open a:nth-child(3) { transition-delay: .15s, .15s; }
.mobile-menu.open a:nth-child(4) { transition-delay: .2s, .2s; }
.mobile-menu.open a:nth-child(5) { transition-delay: .25s, .25s; }

.mobile-menu a::after {
  content: '→';
  font-size: 13px;
  color: var(--red);
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity .25s ease, transform .25s ease;
}

.mobile-menu a:hover,
.mobile-menu a:active {
  color: var(--bone);
  padding-left: 12px;
}

.mobile-menu a:hover::after,
.mobile-menu a:active::after {
  opacity: 1;
  transform: translateX(0);
}

.mobile-menu a.active {
  color: var(--red);
}

.mobile-menu .btn-mobile-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  padding: 15px 24px;
  background: var(--bone);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;

  opacity: 0;
  transform: translateY(10px);
}

.mobile-menu.open .btn-mobile-cta {
  opacity: 1;
  transform: translateY(0);
  transition: opacity .4s cubic-bezier(.22, 1, .36, 1) .3s, transform .4s cubic-bezier(.22, 1, .36, 1) .3s;
}

.mobile-menu .btn-mobile-cta::after {
  display: none;
}

.mobile-menu.open .btn-mobile-cta:hover {
  opacity: .82;
}

/* ── responsive ──────────────────────────────────────────────── */
@media (max-width: 1080px) {
  .nav-links {
    display: none;
  }
}

@media (max-width: 768px) {
  .nav-inner {
    padding: 0 20px;
  }

  .nav-links,
  .btn-nav-calendly {
    display: none;
  }

  .hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .logo img {
    height: 21px;
  }

  .logo-wordmark {
    font-size: 14px;
  }

  .mobile-menu {
    padding: 8px 20px 32px;
  }
}

@media (max-width: 480px) {
  :root {
    --nav-h: 62px;
  }

  .nav-inner {
    padding: 0 16px;
    gap: 12px;
  }

  .logo img {
    height: 19px;
  }

  .logo-wordmark {
    font-size: 12.5px;
  }

  .hamburger {
    width: 36px;
    height: 36px;
  }
}