:root {
  --menu-surface: color-mix(in srgb, var(--card) 88%, var(--bg) 12%);
  --menu-border: color-mix(in srgb, var(--fg) 18%, var(--bg) 82%);
  --menu-divider: color-mix(in srgb, var(--fg) 28%, var(--bg) 72%);
  --menu-btn-bg-hover: color-mix(in srgb, var(--fg) 14%, var(--bg) 86%);
  --menu-margin: clamp(16px, 4vw, 24px);
}

.navigation {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 220;
  background: var(--card);
  background: var(--menu-surface);
  color: var(--fg);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: none;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.navigation.scrolled {
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
  border-bottom: none;
}

.navigation__container {
  width: 100%;
  max-width: none;
  margin-inline: 0;
  padding-inline: 0;
  --navigation-edge-gap: clamp(14px, 3vw, 28px);
  padding-left: calc(env(safe-area-inset-left, 0px) + var(--navigation-edge-gap));
  padding-right: calc(env(safe-area-inset-right, 0px) + var(--navigation-edge-gap));
  --navigation-padding-block: clamp(8px, 2vw, 16px);
  padding-block: var(--navigation-padding-block);
  padding-top: calc(env(safe-area-inset-top, 0px) + var(--navigation-padding-block));
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navigation__logo {
  font-family: "Engravers Roman Bold BT", "Engravers MT", serif;
  font-weight: 50;
  font-size: clamp(
    calc(var(--font-rem-base) * 1.9),
    calc(var(--font-rem-base) * 0.72 + 0.5vw),
    calc(var(--font-rem-base) * 1.15)
  );
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: inherit;
}

.navigation__menu-btn {
  /* Glass button base (adapted) */
  --border-width: clamp(1px, 0.0625em, 4px);
  appearance: none;
  all: unset;
  cursor: pointer;
  position: relative;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  pointer-events: auto;
  z-index: 3;
  background: linear-gradient(
    -75deg,
    rgba(255, 255, 255, 0.05),
    rgba(255, 255, 255, 0.2),
    rgba(255, 255, 255, 0.05)
  );
  border-radius: 999vw;
  box-shadow: inset 0 0.125em 0.125em rgba(0, 0, 0, 0.05),
    inset 0 -0.125em 0.125em rgba(255, 255, 255, 0.5),
    0 0.25em 0.125em -0.125em rgba(0, 0, 0, 0.2),
    0 0 0.1em 0.25em inset rgba(255, 255, 255, 0.2),
    0 0 0 0 rgba(255, 255, 255, 1);
  backdrop-filter: blur(clamp(1px, 0.125em, 4px));
  -webkit-backdrop-filter: blur(clamp(1px, 0.125em, 4px));
  transition: transform 400ms cubic-bezier(0.25, 1, 0.5, 1), box-shadow 400ms cubic-bezier(0.25, 1, 0.5, 1);
  padding:
    clamp(
      calc(var(--font-rem-base) * 0.45),
      calc(var(--font-rem-base) * 0.42 + 0.18vw),
      calc(var(--font-rem-base) * 0.65)
    )
    clamp(
      calc(var(--font-rem-base) * 1.2),
      calc(var(--font-rem-base) * 1.05 + 0.6vw),
      calc(var(--font-rem-base) * 1.8)
    );
  font-size: clamp(
    calc(var(--font-rem-base) * 0.72),
    calc(var(--font-rem-base) * 0.65 + 0.2vw),
    calc(var(--font-rem-base) * 0.95)
  );
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--fg) 92%, transparent 8%);
}

.navigation__menu-btn:hover {
  transform: scale(0.975);
  backdrop-filter: blur(0.01em);
  -webkit-backdrop-filter: blur(0.01em);
  box-shadow: inset 0 0.125em 0.125em rgba(0, 0, 0, 0.05),
    inset 0 -0.125em 0.125em rgba(255, 255, 255, 0.5),
    0 0.15em 0.05em -0.1em rgba(0, 0, 0, 0.25),
    0 0 0.05em 0.1em inset rgba(255, 255, 255, 0.5),
    0 0 0 0 rgba(255, 255, 255, 1);
}

.navigation__menu-btn:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--fg) 40%, transparent);
  outline-offset: 2px;
}

.navigation__controls {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(8px, 1.2vw, 18px);
}

/* Glass wrapper + shadow around nav button */
.button-wrap.nav-glass {
  position: relative;
  z-index: 2;
  border-radius: 999vw;
  background: transparent;
  pointer-events: none; /* let the button receive events */
}

.button-wrap.nav-glass .button-shadow {
  --shadow-cuttoff-fix: 2em;
  position: absolute;
  width: calc(100% + var(--shadow-cuttoff-fix));
  height: calc(100% + var(--shadow-cuttoff-fix));
  top: calc(0% - var(--shadow-cuttoff-fix) / 2);
  left: calc(0% - var(--shadow-cuttoff-fix) / 2);
  filter: blur(clamp(2px, 0.125em, 12px));
  overflow: visible;
  pointer-events: none;
}

.button-wrap.nav-glass .button-shadow::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 999vw;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.1));
  width: calc(100% - var(--shadow-cuttoff-fix) - 0.25em);
  height: calc(100% - var(--shadow-cuttoff-fix) - 0.25em);
  top: calc(var(--shadow-cuttoff-fix) - 0.5em);
  left: calc(var(--shadow-cuttoff-fix) - 0.875em);
  padding: 0.125em;
  box-sizing: border-box;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  transition: all 400ms cubic-bezier(0.25, 1, 0.5, 1);
  opacity: 1;
}

/* Animated sheen and border */
.navigation__menu-btn .btn-label {
  position: relative;
  display: block;
  user-select: none;
  font-weight: 500;
  color: inherit;
  text-shadow: 0em 0.25em 0.05em rgba(0, 0, 0, 0.1);
}

@property --angle-1 {
  syntax: "<angle>";
  inherits: false;
  initial-value: -75deg;
}

@property --angle-2 {
  syntax: "<angle>";
  inherits: false;
  initial-value: -45deg;
}

.navigation__menu-btn .btn-label::after {
  content: "";
  position: absolute;
  width: calc(100% - var(--border-width));
  height: calc(100% - var(--border-width));
  top: calc(0% + var(--border-width) / 2);
  left: calc(0% + var(--border-width) / 2);
  border-radius: 999vw;
  background: linear-gradient(
    var(--angle-2),
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.5) 40% 50%,
    rgba(255, 255, 255, 0) 55%
  );
  mix-blend-mode: screen;
  pointer-events: none;
  background-size: 200% 200%;
  background-position: 0% 50%;
  background-repeat: no-repeat;
  transition: background-position 500ms cubic-bezier(0.25, 1, 0.5, 1),
    --angle-2 500ms cubic-bezier(0.25, 1, 0.5, 1);
}

.navigation__menu-btn:hover .btn-label::after {
  background-position: 25% 50%;
}

.navigation__menu-btn:active .btn-label::after {
  background-position: 50% 15%;
  --angle-2: -15deg;
}

.navigation__menu-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 999vw;
  width: calc(100% + var(--border-width));
  height: calc(100% + var(--border-width));
  top: calc(0% - var(--border-width) / 2);
  left: calc(0% - var(--border-width) / 2);
  padding: var(--border-width);
  box-sizing: border-box;
  background: conic-gradient(
      from var(--angle-1) at 50% 50%,
      rgba(0, 0, 0, 0.5),
      rgba(0, 0, 0, 0) 5% 40%,
      rgba(0, 0, 0, 0.5) 50%,
      rgba(0, 0, 0, 0) 60% 95%,
      rgba(0, 0, 0, 0.5)
    ),
    linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5));
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  transition: all 400ms cubic-bezier(0.25, 1, 0.5, 1), --angle-1 500ms ease;
  box-shadow: inset 0 0 0 calc(var(--border-width) / 2) rgba(255, 255, 255, 0.5);
}

.navigation__menu-btn:hover::after {
  --angle-1: -125deg;
}

.navigation__menu-btn:active::after {
  --angle-1: -75deg;
}

/* Shadow hover/active reactions using :has */
.button-wrap.nav-glass:has(.navigation__menu-btn:hover) .button-shadow {
  filter: blur(clamp(2px, 0.0625em, 6px));
  transition: filter 400ms cubic-bezier(0.25, 1, 0.5, 1);
}

.button-wrap.nav-glass:has(.navigation__menu-btn:hover) .button-shadow::after {
  top: calc(var(--shadow-cuttoff-fix) - 0.875em);
}

.button-wrap.nav-glass:has(.navigation__menu-btn:active) {
  transform: rotate3d(1, 0, 0, 25deg);
}

.button-wrap.nav-glass:has(.navigation__menu-btn:active) .button-shadow {
  filter: blur(clamp(2px, 0.125em, 12px));
}

.button-wrap.nav-glass:has(.navigation__menu-btn:active) .button-shadow::after {
  top: calc(var(--shadow-cuttoff-fix) - 0.5em);
  opacity: 0.75;
}

.navigation__controls .mode-display {
  font-size: clamp(
    calc(var(--font-rem-base) * 0.68),
    calc(var(--font-rem-base) * 0.6 + 0.18vw),
    calc(var(--font-rem-base) * 0.82)
  );
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.dropdown {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  transform: none;
  width: 100%;
  min-height: clamp(360px, 52vh, 600px);
  background: var(--menu-surface);
  background-image: linear-gradient(180deg, color-mix(in srgb, var(--menu-surface) 70%, rgb(0 0 0 / 16%) 30%) 0%, color-mix(in srgb, var(--menu-surface) 84%, rgb(0 0 0 / 32%) 16%) 100%);
  color: var(--fg);
  font-size: var(--font-rem-base);
  --dropdown-padding-top: clamp(5px, 1vw, 28px);
  --dropdown-padding-bottom: clamp(28px, 6vw, 42px);
  padding: calc(env(safe-area-inset-top, 0px) + var(--dropdown-padding-top))
    var(--menu-margin)
    var(--dropdown-padding-bottom);
  display: none;
  flex-direction: column;
  justify-content: space-between;
  gap: clamp(24px, 6vw, 56px);
  z-index: 230;
  will-change: transform;
  overflow-x: hidden;
  overflow-y: auto;
  pointer-events: none;
}

.dropdown.open {
  display: flex;
  pointer-events: auto;
}

.dropdown__section {
  width: 100%;
  margin: 0;
}

.dropdown__section--one {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: clamp(24px, 6vw, 64px);
  padding-top: clamp(8px, 2vw, 18px);
  padding-bottom: clamp(12px, 2.8vw, 24px);
  margin-bottom: clamp(12px, 2.6vw, 22px);
}

.dropdown__word {
  margin: 0;
  font-size: clamp(
    calc(var(--font-rem-base) * 3.5),
    8vw,
    calc(var(--font-rem-base) * 9)
  );
  font-weight: 240;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--fg) 92%, transparent 8%);
}

.dropdown__quote {
  margin: 0;
  max-width: clamp(280px, 32vw, 420px);
  font-size: clamp(
    calc(var(--font-rem-base) * 0.95),
    1.2vw,
    calc(var(--font-rem-base) * 1.2)
  );
  line-height: 1.45;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--fg) 80%, transparent 20%);
  text-align: right;
  align-self: flex-start;
}

.dropdown__section--three {
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 3.2vw, 28px);
}

.divider {
  width: 0;
  height: 1px;
  align-self: stretch;
  background: var(--menu-divider);
  opacity: 0.5;
  transition: width 0.3s ease;
  will-change: width;
}

/* Hide the divider on small screens */
@media (max-width: 768px) {
  .divider {
    display: none;
  }

  .navigation__logo {
    font-size: clamp(
      calc(var(--font-rem-base) * 1.2),
      calc(var(--font-rem-base) * 1 + 0.5vw),
      calc(var(--font-rem-base) * 1.45)
    );
  }

  .navigation__controls .mode-display {
    display: none;
  }

  .dropdown__section--three {
    margin-top: auto;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    gap: clamp(12px, 4vw, 28px);
  }

  /* remove extra spacing when divider is removed */
  .dropdown__nav {
    padding-top: 0;
    flex-direction: column;
    flex-wrap: nowrap;
    justify-content: flex-end;
    align-items: flex-start;
    row-gap: clamp(12px, 3vw, 18px);
    height: 100%;
  }

  .dropdown__section--three .ambient-controls--mobile {
    justify-self: end;
    align-self: end;
  }
}

.dropdown__nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(14px, 3vw, 32px);
  padding-top: clamp(2px, 0.8vw, 10px);
  padding-bottom: clamp(12px, 2.5vw, 24px);
  width: 100%;
  container-type: inline-size;
}

.dropdown__button {
  position: relative;
  font-size: clamp(12px, 1.9vw, 18px);
  font-weight: 350;
  letter-spacing: 0.00em;
  color: inherit;
  text-decoration: none;
  opacity: 0;
  transform: translateY(20px);
  transition: color 0.2s ease;
  will-change: opacity, transform;
}

@supports (font-size: 1cqw) {
  .dropdown__button {
    font-size: clamp(12px, 1.9cqw, 18px);
  }
}

.dropdown__button::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.2s ease;
}

.dropdown__button:hover::after,
.dropdown__button:focus-visible::after {
  width: 100%;
}

.dropdown__footer {
  margin-top: auto;
  padding: clamp(20px, 4vw, 32px) var(--menu-margin);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: clamp(16px, 4vw, 32px);
  background: color-mix(in srgb, var(--bg) 35%, rgb(0 0 0 / 75%) 65%);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: clamp(
    calc(var(--font-rem-base) * 0.8),
    0.9vw,
    calc(var(--font-rem-base) * 0.95)
  );
  opacity: 0;
  transform: translateY(20px);
  will-change: opacity, transform;
}

.dropdown__brand {
  font-weight: 600;
  letter-spacing: 0.2em;
}

.dropdown__section--one h1,
.dropdown__section--one p,
.dropdown__footer {
  opacity: 0;
  transform: translateY(20px);
  will-change: opacity, transform;
}

.dropdown.open .dropdown__section--one h1,
.dropdown.open .dropdown__section--one p,
.dropdown.open .dropdown__button,
.dropdown.open .dropdown__footer {
  transform: translateY(0);
}

#content {
  padding-top: var(--nav-offset, 96px);
}

@media (max-width: 768px) {
  .navigation {
    z-index: 220;
  }

  .dropdown {
    height: auto;
    top: 0;
    --dropdown-padding-top: clamp(28px, 8vw, 56px);
    --dropdown-padding-bottom: clamp(20px, 7vw, 32px);
    gap: clamp(28px, 8vw, 52px);
  }

  .dropdown__section--one {
    flex-direction: column;
    justify-content: flex-start;
    gap: clamp(16px, 4vw, 24px);
  }

  .dropdown__quote {
    max-width: none;
    text-align: left;
  }

  .dropdown__nav {
    flex-direction: column;
    align-items: flex-start;
    gap: clamp(12px, 3vw, 18px);
  }

  .dropdown__footer {
    flex-direction: column;
    align-items: flex-start;
    row-gap: clamp(10px, 3vw, 16px);
    font-size: clamp(
      calc(var(--font-rem-base) * 0.78),
      1.9vw,
      calc(var(--font-rem-base) * 0.9)
    );
  }
}