/* Shared mobile hamburger nav — unified shell (max-width 960px only) */
@media (max-width: 960px) {
  :root {
    --mobile-nav-height: 2.85rem;
    --mobile-nav-bg: var(--accent, #b03a39);
    --mobile-nav-fg: var(--bountt-accent, #faf0ca);
    --mobile-nav-offset: calc(
      var(--mobile-nav-height, 3.25rem) + env(safe-area-inset-top, 0px)
    );
    --mobile-nav-motion: 360ms;
    --ease-premium-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-premium-in: cubic-bezier(0.4, 0, 1, 1);
    --cs-mobile-type-scale: 0.9375;
    --cs-mobile-hero-title-min: 1.55rem;
    --cs-mobile-hero-title-fluid: 6.75vw;
    --cs-mobile-hero-title-max: 2.15rem;
  }

  html:has(.layout) {
    font-size: calc(100% * var(--cs-mobile-type-scale));
  }

  html:has(.layout) .hero__title {
    font-size: clamp(
      var(--cs-mobile-hero-title-min),
      var(--cs-mobile-hero-title-fluid),
      var(--cs-mobile-hero-title-max)
    );
    text-wrap: balance;
  }

  .main {
    padding-top: calc(var(--mobile-nav-offset) + 0.5rem);
    padding-bottom: clamp(2rem, 5vw, 3rem) !important;
  }

  .section {
    scroll-margin-top: var(--mobile-nav-offset);
  }

  .cs-nav-shell {
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) - 1px);
    left: 0;
    right: 0;
    z-index: 200;
    overflow: hidden;
    color: var(--mobile-nav-fg);
    background: rgba(255, 255, 255, 0.513);
    backdrop-filter: blur(20px) saturate(1.1);
    -webkit-backdrop-filter: blur(20px) saturate(1.1);
    border-bottom: 1px solid rgba(26, 24, 20, 0.06);
    transform: translate3d(0, 0, 0);
    -webkit-transform: translate3d(0, 0, 0);
    opacity: 1;
    pointer-events: auto;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transition:
      transform var(--mobile-nav-motion) var(--ease-premium-out),
      opacity var(--mobile-nav-motion) var(--ease-premium-out),
      background 360ms cubic-bezier(0.4, 0, 0.2, 1),
      backdrop-filter 360ms cubic-bezier(0.4, 0, 0.2, 1),
      -webkit-backdrop-filter 360ms cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, opacity;
  }

  .cs-nav-shell:not(.is-drawer-open) {
    color: var(--ink, #1a1814);
    border-bottom-color: rgba(26, 24, 20, 0.08);
  }

  .cs-nav-shell:not(.is-drawer-open) .cs-nav__logo,
  .cs-nav-shell:not(.is-drawer-open) .cs-nav__burger {
    color: var(--ink, #1a1814);
  }

  .cs-nav__logo {
    font-family: var(--font-copy, "Geist Sans", system-ui, sans-serif);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1;
    text-decoration: none;
  }

  .cs-nav-shell.is-drawer-open .cs-nav__logo {
    color: var(--mobile-nav-fg);
  }

  .cs-nav__burger .icon {
    width: 1.5rem;
    height: 1.5rem;
  }

  .cs-nav-shell.is-past-home:not(.is-drawer-open) {
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(20px) saturate(1.1);
    -webkit-backdrop-filter: blur(20px) saturate(1.1);
  }

  html:has(.layout) .cs-nav-shell:not(.is-drawer-open),
  html:has(.layout) .cs-nav-shell.is-past-home:not(.is-drawer-open) {
    background: var(--paper, #faf8f4);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .cs-nav-shell.is-drawer-open {
    color: var(--mobile-nav-fg);
    background: linear-gradient(
      180deg,
      rgba(196, 52, 50, 0.97) 0%,
      rgba(176, 58, 57, 0.94) 38%,
      rgba(148, 40, 39, 0.92) 72%,
      rgba(124, 32, 31, 0.9) 100%
    );
    backdrop-filter: blur(24px) saturate(1.3);
    -webkit-backdrop-filter: blur(24px) saturate(1.3);
    border-bottom-color: rgba(255, 255, 255, 0.18);
  }

  .cs-nav-shell.is-drawer-open.is-past-home {
    background: linear-gradient(
      180deg,
      rgba(196, 52, 50, 0.98) 0%,
      rgba(176, 58, 57, 0.96) 38%,
      rgba(148, 40, 39, 0.94) 72%,
      rgba(124, 32, 31, 0.92) 100%
    );
  }

  .cs-nav-shell.is-scroll-hidden {
    transform: translate3d(0, calc(-100% - env(safe-area-inset-top, 0px)), 0);
    -webkit-transform: translate3d(0, calc(-100% - env(safe-area-inset-top, 0px)), 0);
    opacity: 0;
    pointer-events: none;
  }

  html:has(.cs-nav-shell.is-in-hero) .layout .main {
    padding-top: calc(env(safe-area-inset-top, 0px) + 0.5rem) !important;
  }

  .cs-nav {
    display: flex;
    position: relative;
    align-items: center;
    justify-content: space-between;
    padding-block: 0.5rem;
    background: transparent;
    border-bottom: none;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    transition: none;
    will-change: auto;
  }

  .cs-nav__logo {
    color: var(--mobile-nav-fg);
  }

  .cs-nav__burger {
    color: var(--mobile-nav-fg);
    -webkit-tap-highlight-color: transparent;
  }

  .cs-nav-shell .cs-nav__drawer,
  .cs-nav-shell .cs-nav__drawer.is-open {
    display: block !important;
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    z-index: auto !important;
    max-height: 0 !important;
    height: auto !important;
    overflow: hidden !important;
    pointer-events: none;
    visibility: visible !important;
    background: transparent !important;
    border-bottom: none !important;
    opacity: 0;
    transition:
      max-height var(--mobile-nav-motion) var(--ease-premium-out),
      opacity calc(var(--mobile-nav-motion) * 0.75) var(--ease-premium-out) !important;
  }

  .cs-nav-shell.is-drawer-open .cs-nav__drawer,
  .cs-nav-shell.is-drawer-open .cs-nav__drawer.is-open {
    max-height: var(--drawer-open-height, 20rem) !important;
    overflow: visible !important;
    pointer-events: auto;
    opacity: 1;
  }

  .cs-nav__drawer-inner {
    display: flex;
    flex-direction: column;
    width: 100%;
  }

  .cs-nav__drawer nav {
    display: flex;
    flex-direction: column;
    flex: 0 0 auto;
    padding: 0.2rem clamp(1.25rem, 5vw, 2rem) 0;
  }

  .cs-nav__drawer nav a:not(.cs-nav__back) {
    text-transform: lowercase;
  }

  .cs-nav__drawer nav a:not(.cs-nav__back)::first-letter {
    text-transform: uppercase;
  }

  .cs-nav__drawer a.cs-nav__back {
    text-transform: uppercase;
    letter-spacing: 0.06em;
  }

  .cs-nav__drawer a {
    color: var(--mobile-nav-fg);
    border-bottom-color: rgba(255, 255, 255, 0.14);
  }

  .cs-nav__drawer a:has(+ .cs-nav__drawer-social) {
    border-bottom: none;
  }

  .cs-nav__drawer a.cs-nav__back {
    color: color-mix(in srgb, var(--mobile-nav-fg) 72%, transparent);
  }

  .cs-nav__drawer a.active {
    color: var(--mobile-nav-fg);
  }

  .cs-nav__drawer .icon-btn {
    color: var(--mobile-nav-fg);
  }

  .cs-nav__drawer-social {
    flex: 0 0 auto;
    padding: 0.5rem clamp(1.25rem, 5vw, 2rem) 0.75rem;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
  }

  .cs-nav__drawer nav .cs-nav__drawer-social {
    justify-content: flex-start;
    align-self: stretch;
    width: 100%;
    padding-left: 0;
    padding-right: 0;
  }

  .cs-nav__drawer .icon-btn {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.16) 0%,
      rgba(0, 0, 0, 0.08) 100%
    );
    box-shadow:
      0 2px 6px rgba(0, 0, 0, 0.18),
      inset 0 1px 0 rgba(255, 255, 255, 0.34);
    overflow: hidden;
    transition:
      background 180ms ease,
      border-color 180ms ease,
      box-shadow 180ms ease;
  }

  .cs-nav__drawer .icon-btn::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(
      135deg,
      rgba(255, 255, 255, 0.2) 0%,
      transparent 55%
    );
    pointer-events: none;
  }

  .cs-nav__drawer .icon-btn .icon {
    position: relative;
    z-index: 1;
  }

  .cs-nav__drawer .icon-btn:hover,
  .cs-nav__drawer .icon-btn:focus-visible {
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.22) 0%,
      rgba(0, 0, 0, 0.06) 100%
    );
    border-color: rgba(255, 255, 255, 0.24);
    box-shadow:
      0 3px 8px rgba(0, 0, 0, 0.22),
      inset 0 1px 0 rgba(255, 255, 255, 0.42);
  }

  .cs-nav__drawer .icon-btn:active {
    border: none;
    background: rgba(100, 28, 27, 0.96);
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.28);
  }

  .cs-nav__drawer .icon-btn:active::before {
    opacity: 0;
  }

  .cs-nav__drawer-ai {
    flex: 0 0 auto;
    width: 100%;
    margin-top: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.14);
  }

  .cs-nav__drawer-ai-link {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    width: 100%;
    margin: 0;
    padding: 0.95rem clamp(1.25rem, 5vw, 2rem);
    border: none;
    background: transparent;
    color: var(--mobile-nav-fg);
    text-align: left;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition:
      transform 120ms ease,
      background-color 120ms ease;
  }

  .cs-nav__drawer-ai-link:active {
    background: rgba(100, 28, 27, 0.96);
    transform: scale(0.98);
  }

  .cs-nav__drawer-ai-link:active .cs-nav__drawer-ai-cta {
    font-weight: 700;
  }

  .cs-nav__drawer-ai-icon {
    display: block;
    width: 1.5rem;
    height: auto;
    aspect-ratio: 66 / 81;
    flex-shrink: 0;
    fill: currentColor;
    color: var(--mobile-nav-fg);
  }

  .cs-nav__drawer-ai-cta {
    font-size: 1.05rem;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
    text-transform: none;
  }

  .mobile-ai-fab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    right: 1rem;
    bottom: calc(env(safe-area-inset-bottom, 0px) + 1rem);
    z-index: 210;
    width: 3.25rem;
    height: 3.25rem;
    padding: 0;
    border: none;
    border-radius: 999px;
    background: var(--mobile-nav-bg, var(--accent, #b03a39));
    box-shadow:
      0 4px 16px rgba(19, 17, 33, 0.12),
      0 1px 3px rgba(19, 17, 33, 0.06);
    overflow: hidden;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition:
      transform 120ms ease,
      box-shadow 220ms ease,
      background-color 120ms ease;
  }

  .mobile-ai-fab:hover,
  .mobile-ai-fab:focus-visible {
    box-shadow:
      0 6px 20px rgba(19, 17, 33, 0.16),
      0 2px 4px rgba(19, 17, 33, 0.08);
  }

  .mobile-ai-fab:active {
    background: #8f2f2e;
    transform: scale(0.9);
    box-shadow:
      0 2px 8px rgba(19, 17, 33, 0.14),
      0 1px 2px rgba(19, 17, 33, 0.06);
    transition: none;
  }

  .mobile-ai-fab.is-hidden {
    visibility: hidden;
    pointer-events: none;
    transform: scale(0.85);
  }

  .mobile-ai-fab__icon {
    display: block;
    width: 1.35rem;
    height: auto;
    aspect-ratio: 66 / 81;
    fill: currentColor;
    color: var(--mobile-nav-fg, #faf0ca);
  }
}

@media (min-width: 961px) {
  .mobile-ai-fab {
    display: none !important;
  }
}

@media (max-width: 640px) {
  .main__inner > .hero > .hero__ctas {
    margin-bottom: clamp(1rem, 3vw, 1.5rem) !important;
  }

  .cs-nav-card {
    padding-bottom: clamp(0.65rem, 1.5vw, 0.85rem);
  }

  .cs-nav-card__body {
    margin-bottom: clamp(0.25rem, 1vw, 0.4rem);
  }

  .cs-nav-card__btn {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  @media (max-width: 960px) {
    .cs-nav-shell,
    .cs-nav__drawer {
      transition-duration: 0.01ms !important;
    }
  }
}