/**
 * Qitaf icon-rail nav — desktop rail + premium mobile drawer
 */

.nav {
  font-family: var(--font-body);
  letter-spacing: var(--tracking-body);
  z-index: 9999;
  pointer-events: auto;
}

.nav * {
  box-sizing: border-box;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--accent);
  transition: color var(--dur) var(--ease), transform 0.3s var(--ease);
}

.nav__logo:hover {
  color: #7bc45a;
  transform: translateY(-1px);
}

.nav__mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  object-fit: contain;
  flex: none;
  background: rgba(255, 255, 255, 0.06);
  padding: 2px;
}

.nav__word {
  white-space: nowrap;
}

.nav__links a {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: inherit;
  padding: 6px 0;
  min-height: 44px;
  transition: color 0.25s ease, transform 0.3s var(--ease), padding 0.3s ease;
}

.nav__links a::before {
  content: attr(data-nav-index);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(245, 247, 246, 0.35);
  min-width: 1.6em;
  transition: color 0.25s ease;
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.35s var(--ease);
}

.nav__links a:hover,
.nav__links a[aria-current="page"] {
  color: var(--accent);
  transform: translateX(8px);
}

.nav__links a:hover::before,
.nav__links a[aria-current="page"]::before {
  color: var(--accent);
}

.nav__links a:hover::after,
.nav__links a[aria-current="page"]::after {
  width: 36px;
  left: 2.4em;
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  background: var(--primary);
  color: #fff !important;
  font-weight: 600;
  font-size: 14px;
  border-radius: 999px;
  transition: background 0.25s ease, transform 0.25s var(--ease), box-shadow 0.25s ease;
}

.nav__cta:hover {
  background: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(94, 170, 66, 0.35);
}

.nav__wa {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(245, 247, 246, 0.65);
  transition: color 0.2s ease;
}

.nav__wa:hover {
  color: var(--accent);
}

.nav__burger {
  display: none;
  position: relative;
  z-index: 10050;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg-surface);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.nav__burger:hover {
  border-color: var(--accent);
  background: #fff;
}

.nav__burger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav__burger span,
.nav__burger span::before,
.nav__burger span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--fg);
  position: relative;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav__burger span::before,
.nav__burger span::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav__burger span::before { top: -6px; }
.nav__burger span::after { top: 6px; }

.nav.is-open .nav__burger span {
  background: transparent;
}
.nav.is-open .nav__burger span::before {
  top: 0;
  transform: rotate(45deg);
}
.nav.is-open .nav__burger span::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav__progress {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.nav__progress span {
  display: block;
  width: 100%;
  height: 0%;
  background: linear-gradient(180deg, var(--accent), var(--primary));
  transition: height 0.1s linear;
}

/* Desktop: drawer wrapper is layout-transparent so rail flex stays intact */
@media (min-width: 1200px) {
  .nav__drawer {
    display: contents;
  }

  .nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--rail);
    overflow: hidden;
    background: var(--nav-bg);
    color: var(--nav-fg);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 28px 0;
    transition: width 0.55s var(--ease);
    pointer-events: auto;
  }

  .nav::after {
    content: "";
    position: absolute;
    inset: 0;
    width: var(--rail);
    pointer-events: none;
  }

  .nav:hover,
  .nav:focus-within,
  .nav.is-open {
    width: var(--rail-open);
  }

  .nav__top {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 0 22px;
  }

  .nav__actions {
    display: flex;
    align-items: center;
    gap: 10px;
    pointer-events: auto;
  }

  .nav__lang {
    pointer-events: auto;
    touch-action: manipulation;
  }

  .nav__burger {
    display: none;
  }

  .nav__word {
    max-width: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-width 0.45s var(--ease), opacity 0.35s ease;
  }

  .nav:hover .nav__word,
  .nav:focus-within .nav__word,
  .nav.is-open .nav__word {
    max-width: 120px;
    opacity: 1;
  }

  .nav__links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transform: translateX(-18px);
    pointer-events: none;
    transition: opacity 0.4s var(--ease) 0.05s, transform 0.45s var(--ease);
  }

  .nav:hover .nav__links,
  .nav:focus-within .nav__links,
  .nav.is-open .nav__links {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav.is-open .nav__bottom,
  .nav.is-open .nav__links {
    pointer-events: auto;
  }

  .nav__links a {
    color: rgba(245, 247, 246, 0.72);
  }

  .nav__links a:hover {
    color: #fff;
  }

  .nav__bottom {
    padding: 0 22px 8px;
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
    display: grid;
    gap: 10px;
  }

  .nav:hover .nav__bottom,
  .nav:focus-within .nav__bottom,
  .nav.is-open .nav__bottom {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav__lang {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid rgba(94, 170, 66, 0.45);
    background: rgba(94, 170, 66, 0.16);
    color: #e8f5e1;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: background 0.25s var(--ease), transform 0.25s var(--ease);
  }

  .nav__lang:hover {
    background: rgba(94, 170, 66, 0.28);
    transform: translateY(-1px);
  }

  .nav__rail-mark {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(245, 247, 246, 0.4);
    padding: 0 28px;
    position: absolute;
    bottom: 28px;
    left: 0;
    transition: opacity var(--dur) var(--ease);
    pointer-events: none;
  }

  .nav:hover .nav__rail-mark,
  .nav:focus-within .nav__rail-mark,
  .nav.is-open .nav__rail-mark {
    opacity: 0;
  }

  [dir="rtl"] .nav {
    left: auto;
    right: 0;
  }

  [dir="rtl"] .nav__links {
    transform: translateX(18px);
  }

  [dir="rtl"] .nav:hover .nav__links,
  [dir="rtl"] .nav:focus-within .nav__links,
  [dir="rtl"] .nav.is-open .nav__links {
    transform: none;
  }

  [dir="rtl"] .nav__links a:hover,
  [dir="rtl"] .nav__links a[aria-current="page"] {
    transform: translateX(-8px);
  }

  [dir="rtl"] .nav__links a::after {
    left: auto;
    right: 0;
  }

  [dir="rtl"] .nav__links a:hover::after,
  [dir="rtl"] .nav__links a[aria-current="page"]::after {
    left: auto;
    right: 2.4em;
  }

  [dir="rtl"] .nav__rail-mark {
    left: auto;
    right: 0;
  }

  [dir="rtl"] .nav__progress {
    right: auto;
    left: 0;
  }
}

/* Mobile / tablet: top bar + fullscreen drawer
   Important: no backdrop-filter/transform on .nav — those create a containing
   block and break position:fixed children to the 64px header. */
@media (max-width: 1199.98px) {
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100100;
    height: calc(64px + env(safe-area-inset-top, 0px));
    padding-top: env(safe-area-inset-top, 0px);
    background: rgba(246, 247, 245, 0.97);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
    color: var(--fg);
    isolation: auto;
    overflow: visible;
  }

  .nav__top {
    position: relative;
    z-index: 100110;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 16px;
  }

  .nav__actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: none;
    position: relative;
    z-index: 100120;
  }

  .nav__logo {
    color: var(--primary);
  }

  .nav__lang {
    position: relative;
    z-index: 100121;
    pointer-events: auto;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .nav__burger {
    display: grid;
    flex: none;
    z-index: 100122;
    pointer-events: auto;
    touch-action: manipulation;
  }

  .nav__drawer {
    position: fixed;
    inset: 0;
    z-index: 100105;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 24px;
    padding:
      calc(80px + env(safe-area-inset-top, 0px))
      max(24px, env(safe-area-inset-right, 0px))
      calc(28px + env(safe-area-inset-bottom, 0px))
      max(24px, env(safe-area-inset-left, 0px));
    background:
      radial-gradient(ellipse 80% 40% at 50% 0%, rgba(94, 170, 66, 0.12), transparent 55%),
      var(--bg);
    transform: translate3d(0, -104%, 0);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      transform 0.45s var(--ease),
      opacity 0.35s ease,
      visibility 0.45s;
    overflow: hidden;
  }

  .nav__drawer[inert] {
    pointer-events: none !important;
    visibility: hidden;
  }

  @media (min-width: 1200px) {
    .nav__drawer[inert] {
      pointer-events: auto !important;
      visibility: visible;
    }
  }

  .nav.is-open .nav__drawer {
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    z-index: 100108;
  }

  .nav__links {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    pointer-events: auto;
  }

  .nav__links a {
    font-size: clamp(1.25rem, 6vw, 1.75rem);
    font-weight: 500;
    color: var(--fg);
    padding: 12px 8px;
    border-radius: 12px;
    transform: none;
    pointer-events: auto;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .nav__links a::before {
    color: var(--fg-muted);
  }

  .nav__links a::after {
    display: none;
  }

  .nav__links a:hover,
  .nav__links a[aria-current="page"] {
    color: var(--primary);
    background: rgba(94, 170, 66, 0.1);
    transform: none;
  }

  .nav__links a:hover::before,
  .nav__links a[aria-current="page"]::before {
    color: var(--accent);
  }

  .nav__bottom {
    flex: none;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
  }

  .nav__cta {
    width: 100%;
    justify-self: stretch;
  }

  .nav__wa {
    margin-top: 0;
    color: var(--primary);
    padding: 0 8px;
    white-space: nowrap;
  }

  .nav__lang {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    min-height: 44px;
    padding: 0 16px;
    border-radius: 999px;
    border: 1px solid rgba(14, 61, 44, 0.2);
    background: rgba(94, 170, 66, 0.14);
    color: var(--primary);
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.06em;
    cursor: pointer;
  }

  .nav__rail-mark,
  .nav__progress {
    display: none;
  }

  body {
    padding-top: calc(64px + env(safe-area-inset-top, 0px));
  }

  html.nav-open,
  html.nav-open body {
    overflow: hidden;
    touch-action: none;
    overscroll-behavior: none;
  }

  html:not(.nav-open) body {
    touch-action: manipulation;
  }

  body.nav-open .wa-float {
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
  }

  [dir="rtl"] .nav__links a:hover,
  [dir="rtl"] .nav__links a[aria-current="page"] {
    transform: none;
  }

  [dir="rtl"] .nav__bottom {
    grid-template-columns: auto 1fr;
  }

  [dir="rtl"] .nav__cta {
    order: 0;
  }
}

@media (max-width: 430px) {
  .nav__bottom {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .nav__wa {
    width: 100%;
    justify-content: center;
  }

  [dir="rtl"] .nav__bottom {
    grid-template-columns: 1fr;
  }
}