/* ============================================================
   UnifiedNav — cinematic dark-glass navbar
   Used across index.html, massagens.html, massagistas.html
   ============================================================ */

:root {
  --unav-bg: rgba(10, 8, 7, 0.6);
  --unav-bg-scrolled: rgba(10, 8, 7, 0.85);
  --unav-border: rgba(232, 184, 122, 0.12);
  --unav-border-scrolled: rgba(232, 184, 122, 0.22);
  --unav-ink: #f5ecd9;
  --unav-ink-dim: rgba(245, 236, 217, 0.6);
  --unav-amber: #d97735;
  --unav-amber-glow: rgba(217, 119, 53, 0.5);
  --unav-h: 76px;
  --unav-h-scrolled: 60px;
}

/* Spacer reserves layout space below the fixed nav */
.unav-spacer {
  height: var(--unav-h);
  width: 100%;
}

/* ============ Main bar ============ */
.unav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--unav-h);
  background: var(--unav-bg);
  /* Frosted glass — subtle until scrolled */
  backdrop-filter: blur(8px) saturate(1.1);
  -webkit-backdrop-filter: blur(8px) saturate(1.1);
  border-bottom: 1px solid transparent;
  transform: translate3d(0, 0, 0);
  transition:
    transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1),
    height 0.35s cubic-bezier(0.2, 0.8, 0.2, 1),
    background-color 0.35s ease,
    border-color 0.35s ease,
    backdrop-filter 0.35s ease;
}

.unav--scrolled {
  height: var(--unav-h-scrolled);
  background: var(--unav-bg-scrolled);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  border-bottom-color: var(--unav-border-scrolled);
  box-shadow: 0 8px 30px -10px rgba(0, 0, 0, 0.6);
}

.unav--hidden {
  transform: translate3d(0, -100%, 0);
}

/* When in 'left-rail' mode and scrolled past hero, the main bar fades out
   while the left rail fades in */
.unav--rail-active {
  transform: translate3d(0, -100%, 0);
  opacity: 0;
  pointer-events: none;
}

/* Soft amber line that ignites when scrolled */
.unav-glow {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--unav-amber-glow) 18%,
    var(--unav-amber-glow) 82%,
    transparent 100%);
  opacity: 0;
  transition: opacity 0.45s ease;
  pointer-events: none;
}
.unav--scrolled .unav-glow { opacity: 0.7; }

/* ============ Inner grid ============ */
.unav-inner {
  height: 100%;
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 clamp(20px, 3vw, 44px);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}

/* ============ Wordmark ============ */
.unav-mark {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-decoration: none;
  color: var(--unav-ink);
  line-height: 1;
  transition: opacity 0.3s ease;
}
.unav-mark:hover { opacity: 0.85; }

.unav-mark-glyph {
  font-size: clamp(20px, 1.8vw, 26px);
  letter-spacing: 0.18em;
  font-weight: 400;
  white-space: nowrap;
  transition: font-size 0.3s ease, letter-spacing 0.3s ease;
}
.unav-mark-sub {
  font-family: 'Inter', sans-serif;
  font-size: 9px;
  letter-spacing: 0.32em;
  color: var(--unav-ink-dim);
  font-weight: 500;
  transition: opacity 0.3s ease, height 0.3s ease, margin 0.3s ease;
  overflow: hidden;
  white-space: nowrap;
}
.unav--scrolled .unav-mark-glyph {
  font-size: clamp(17px, 1.4vw, 21px);
  letter-spacing: 0.22em;
}
.unav--scrolled .unav-mark-sub {
  opacity: 0;
  height: 0;
  margin: 0;
}

/* ============ Center: links ============ */
.unav-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: clamp(20px, 2.4vw, 38px);
}
.unav-link {
  position: relative;
  font-family: 'Inter', sans-serif;
  font-size: 11.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--unav-ink-dim);
  text-decoration: none;
  padding: 8px 2px;
  transition: color 0.25s ease;
  white-space: nowrap;
}
.unav-link:hover,
.unav-link.is-active { color: var(--unav-ink); }

/* Animated underline — sweeps from left to right on hover */
.unav-link-underline {
  position: absolute;
  left: 0;
  bottom: 2px;
  height: 1px;
  width: 100%;
  background: var(--unav-amber);
  transform: scaleX(0);
  transform-origin: 0% 50%;
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 0 8px var(--unav-amber-glow);
}
.unav-link:hover .unav-link-underline {
  transform: scaleX(1);
}
.unav-link.is-active .unav-link-underline {
  transform: scaleX(0.6);
  transform-origin: 50% 50%;
}

/* ============ Right: coords + CTA ============ */
.unav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.unav-coords {
  font-family: 'Inter', sans-serif;
  font-size: 9.5px;
  letter-spacing: 0.32em;
  color: var(--unav-ink-dim);
  font-weight: 600;
  white-space: nowrap;
  transition: opacity 0.3s ease, max-width 0.3s ease;
  overflow: hidden;
  max-width: 200px;
}
.unav--scrolled .unav-coords {
  opacity: 0;
  max-width: 0;
  margin: 0;
}

.unav-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 38px;
  padding: 0 18px;
  background: var(--unav-amber);
  border: 1px solid var(--unav-amber);
  color: #0a0807;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.22em;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border-radius: 2px;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition:
    background-color 0.3s ease,
    box-shadow 0.3s ease,
    transform 0.3s ease;
  box-shadow:
    0 0 0 0 rgba(217, 119, 53, 0),
    0 6px 18px -6px rgba(217, 119, 53, 0.45);
}
.unav-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg,
    transparent 30%,
    rgba(255, 255, 255, 0.25) 50%,
    transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.unav-cta:hover {
  background: #e88845;
  box-shadow:
    0 0 0 4px rgba(217, 119, 53, 0.18),
    0 12px 28px -8px rgba(217, 119, 53, 0.55);
  transform: translateY(-1px);
}
.unav-cta:hover::before { transform: translateX(100%); }
.unav-cta:active { transform: translateY(0); }
.unav-cta-arrow {
  font-size: 14px;
  transition: transform 0.25s ease;
}
.unav-cta:hover .unav-cta-arrow { transform: translateX(3px); }

/* ============ Hamburger (mobile only) ============ */
.unav-burger {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--unav-border-scrolled);
  border-radius: 2px;
  padding: 0;
  cursor: pointer;
  position: relative;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.unav-burger:hover { border-color: var(--unav-amber-glow); }
.unav-burger span {
  position: absolute;
  left: 9px;
  right: 9px;
  height: 1px;
  background: var(--unav-ink);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.25s ease, top 0.25s ease;
}
.unav-burger span:nth-child(1) { top: 13px; }
.unav-burger span:nth-child(2) { top: 19px; }
.unav-burger span:nth-child(3) { top: 25px; }
.unav--menu-open .unav-burger span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.unav--menu-open .unav-burger span:nth-child(2) { opacity: 0; }
.unav--menu-open .unav-burger span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

/* ============ Mobile drawer ============ */
.unav-drawer {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(10, 8, 7, 0.96);
  backdrop-filter: blur(24px) saturate(1.3);
  -webkit-backdrop-filter: blur(24px) saturate(1.3);
  display: flex;
  flex-direction: column;
  padding: 100px clamp(28px, 6vw, 60px) 48px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0s linear 0.4s;
}
.unav-drawer.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.4s ease, visibility 0s linear 0s;
}
.unav-drawer::before {
  content: '';
  position: absolute;
  top: 30%;
  left: -20%;
  right: -20%;
  height: 50%;
  background: radial-gradient(ellipse at center,
    rgba(217, 119, 53, 0.18) 0%,
    transparent 60%);
  pointer-events: none;
  filter: blur(40px);
}
.unav-drawer-close {
  position: absolute;
  top: 22px;
  right: clamp(20px, 4vw, 44px);
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid rgba(245, 236, 217, 0.15);
  border-radius: 50%;
  color: var(--unav-ink);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
}
.unav-drawer-close:hover {
  border-color: var(--unav-amber);
  background: rgba(217, 119, 53, 0.08);
  transform: rotate(90deg);
}

.unav-drawer-eye {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--unav-amber);
  font-weight: 600;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.unav-drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  z-index: 1;
}
.unav-drawer-link {
  display: grid;
  grid-template-columns: 60px 1fr;
  align-items: baseline;
  gap: 18px;
  padding: 14px 0;
  font-size: clamp(38px, 7vw, 56px);
  font-weight: 400;
  color: var(--unav-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 236, 217, 0.06);
  letter-spacing: 0.005em;
  line-height: 1;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease, color 0.25s ease;
}
.unav-drawer.is-open .unav-drawer-link {
  opacity: 1;
  transform: translateY(0);
}
.unav-drawer-link:hover {
  color: var(--unav-amber);
}
.unav-drawer-link.is-active .unav-drawer-num {
  color: var(--unav-amber);
}
.unav-drawer-num {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--unav-ink-dim);
  font-weight: 600;
  align-self: center;
}
.unav-drawer-label {
  font-family: inherit;
}

.unav-drawer-cta {
  margin-top: 40px;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 26px;
  background: var(--unav-amber);
  border: 1px solid var(--unav-amber);
  color: #0a0807;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  letter-spacing: 0.22em;
  font-weight: 600;
  cursor: pointer;
  border-radius: 2px;
  position: relative;
  z-index: 1;
  box-shadow: 0 12px 28px -8px rgba(217, 119, 53, 0.5);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.unav-drawer-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px -8px rgba(217, 119, 53, 0.6);
}

.unav-drawer-foot {
  margin-top: auto;
  display: flex;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--unav-ink-dim);
  text-transform: uppercase;
  font-weight: 500;
  position: relative;
  z-index: 1;
}

/* ============ Responsive ============ */
@media (max-width: 1100px) {
  .unav-coords { display: none; }
  .unav-links { gap: 18px; }
  .unav-link { font-size: 10.5px; letter-spacing: 0.18em; }
}

@media (max-width: 880px) {
  .unav-links,
  .unav-right { display: none; }
  .unav-burger { display: block; }
  .unav-inner { grid-template-columns: 1fr auto; }
  .unav-mark-sub { display: none; }
  :root {
    --unav-h: 64px;
    --unav-h-scrolled: 56px;
  }
}

@media (max-width: 480px) {
  .unav-mark-glyph { font-size: 17px; letter-spacing: 0.16em; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .unav,
  .unav-cta,
  .unav-link-underline,
  .unav-drawer,
  .unav-drawer-link {
    transition: opacity 0.2s ease;
    transform: none;
  }
}

/* ============================================================
   LEFT RAIL — vertical text strip pinned to left edge after scroll
   ============================================================ */
.unav-rail {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: 64px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 32px 0;
  background:
    linear-gradient(90deg,
      rgba(10, 8, 7, 0.92) 0%,
      rgba(10, 8, 7, 0.78) 60%,
      rgba(10, 8, 7, 0.4) 100%);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-right: 1px solid rgba(232, 184, 122, 0.18);
  /* Hidden by default — slides in from left when active */
  transform: translate3d(-100%, 0, 0);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 0.55s cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 0.45s ease 0.05s,
    border-color 0.4s ease;
}
.unav-rail.is-active {
  transform: translate3d(0, 0, 0);
  opacity: 1;
  pointer-events: auto;
}

/* Soft amber vertical glow on the right edge of the rail */
.unav-rail::after {
  content: '';
  position: absolute;
  top: 18%;
  bottom: 18%;
  right: -1px;
  width: 1px;
  background: linear-gradient(180deg,
    transparent 0%,
    var(--unav-amber-glow) 30%,
    var(--unav-amber-glow) 70%,
    transparent 100%);
  opacity: 0;
  transition: opacity 0.5s ease 0.2s;
}
.unav-rail.is-active::after { opacity: 0.5; }

/* Wordmark — rotated 180° vertical (reads bottom-to-top, classic editorial) */
.unav-rail-mark {
  display: block;
  text-decoration: none;
  color: var(--unav-ink);
  transition: color 0.25s ease;
}
.unav-rail-mark:hover { color: var(--unav-amber); }
.unav-rail-mark-glyph {
  display: block;
  font-size: 17px;
  letter-spacing: 0.36em;
  white-space: nowrap;
  color: var(--unav-ink);
  /* Rotate so text reads bottom-to-top */
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-weight: 400;
}

/* Divider line between mark and links */
.unav-rail-divider {
  width: 1px;
  height: 60px;
  background: linear-gradient(180deg,
    transparent 0%,
    rgba(245, 236, 217, 0.18) 50%,
    transparent 100%);
}

/* Vertical stack of nav links — also rotated, reads bottom-to-top */
.unav-rail-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  flex: 0 0 auto;
}
.unav-rail-link {
  position: relative;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  font-weight: 500;
  color: rgba(245, 236, 217, 0.82);
  text-decoration: none;
  white-space: nowrap;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  padding: 4px 6px;
  transition: color 0.25s ease, letter-spacing 0.3s ease;
}
.unav-rail-link::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 0;
  background: var(--unav-amber);
  transform: translateX(-50%);
  transition: height 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 0 8px var(--unav-amber-glow);
}
.unav-rail-link:hover { color: var(--unav-ink); }
.unav-rail-link:hover::before { height: 14px; }
.unav-rail-link.is-active {
  color: var(--unav-amber);
  letter-spacing: 0.4em;
  text-shadow: 0 0 12px rgba(217, 119, 53, 0.45);
}
.unav-rail-link.is-active::before {
  height: 22px;
  box-shadow: 0 0 12px var(--unav-amber), 0 0 4px var(--unav-amber);
}

/* Tiny RESERVAR pill at the bottom of the rail */
.unav-rail-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 110px;
  padding: 14px 0;
  border: 1px solid var(--unav-amber);
  background: transparent;
  color: var(--unav-amber);
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.34em;
  font-weight: 600;
  cursor: pointer;
  border-radius: 2px;
  white-space: nowrap;
  transition:
    background 0.3s ease,
    color 0.3s ease,
    box-shadow 0.3s ease,
    transform 0.3s ease;
}
.unav-rail-cta span {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
.unav-rail-cta:hover {
  background: var(--unav-amber);
  color: #0a0807;
  box-shadow: 0 0 0 4px rgba(217, 119, 53, 0.16),
              0 12px 28px -8px rgba(217, 119, 53, 0.55);
  transform: translateY(-2px);
}

/* On mobile, hide the rail — mobile uses the hamburger drawer */
@media (max-width: 880px) {
  .unav-rail { display: none; }
  /* In rail mode on mobile, the main bar shouldn't hide */
  .unav--rail-active {
    transform: translate3d(0, 0, 0);
    opacity: 1;
    pointer-events: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .unav-rail { transition: opacity 0.2s ease; transform: none; }
  .unav-rail:not(.is-active) { display: none; }
}