/*
 * Dentafly Mobile Nav — CSS
 * Styles for the custom 3D scroll-picker mobile navigation.
 * Desktop navigation is completely untouched.
 */

@property --grad-y {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 0%;
}

:root {
  --dfmn-navy-900: #0D1B2A; --dfmn-navy-800: #1B2A3D; --dfmn-navy-700: #2B3E50;
  --dfmn-navy-600: #3D5068; --dfmn-navy-500: #546880; --dfmn-navy-400: #708090;
  --dfmn-gray-400: #9EAAB8; --dfmn-gray-300: #B8C4D0; --dfmn-gray-200: #D0D8E0;
  --dfmn-gray-150: #DEE4EB; --dfmn-gray-100: #EBF0F4; --dfmn-gray-50: #F5F7FA;
  --dfmn-white: #FFFFFF;
  --dfmn-blue-900: #0A2F5C; --dfmn-blue-800: #1A4380; --dfmn-blue-700: #2558A8;
  --dfmn-blue-600: #3B7BDF; --dfmn-blue-500: #4D96FF; --dfmn-blue-400: #5BA3FF;
  --dfmn-blue-200: #A8D0FA; --dfmn-blue-100: #D0E4F8; --dfmn-blue-50: #E8F0FA;
  --dfmn-picker-item-h: 52px;
  --dfmn-picker-rows: 5;
  --dfmn-ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --dfmn-ease-spring: linear(
    0, 0.009, 0.035 2.1%, 0.141, 0.281 6.7%, 0.723 12.9%,
    0.938 16.7%, 1.017, 1.077, 1.121, 1.149 24.3%,
    1.159, 1.163, 1.161, 1.154 29.9%, 1.129 32.8%,
    1.051 39.6%, 1.017 43.1%, 0.991, 0.977 51%,
    0.974 53.8%, 0.975 57.1%, 0.997 69.8%, 1.003 76.9%, 1
  );
}

/* ═══ Hamburger (hidden on desktop) ═══ */
.dfmn-hamburger {
  display: none;
  position: relative; z-index: 200; width: 44px; height: 44px;
  align-items: center; justify-content: center;
  background: none; border: none; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  padding: 0; margin: 0;
}
.dfmn-hamburger__lines { position: relative; width: 22px; height: 14px; }
.dfmn-hamburger__lines span {
  position: absolute; display: block; width: 100%; height: 1.5px;
  background: var(--dfmn-navy-800); border-radius: 2px;
  transition: all 0.4s var(--dfmn-ease-out-expo);
}
.dfmn-hamburger__lines span:nth-child(1) { top: 0; }
.dfmn-hamburger__lines span:nth-child(2) { top: 50%; translate: 0 -50%; }
.dfmn-hamburger__lines span:nth-child(3) { bottom: 0; }

.dfmn-hamburger.is-active .dfmn-hamburger__lines span:nth-child(1) {
  top: 50%; translate: 0 -50%; rotate: 45deg;
}
.dfmn-hamburger.is-active .dfmn-hamburger__lines span:nth-child(2) {
  opacity: 0; translate: 8px -50%;
}
.dfmn-hamburger.is-active .dfmn-hamburger__lines span:nth-child(3) {
  bottom: 50%; translate: 0 50%; rotate: -45deg;
}

/* ═══ Mobile Nav Shell ═══ */
.mobile-nav {
  position: fixed; inset: 0; z-index: 999999;
  visibility: hidden; pointer-events: none;
}
.mobile-nav.is-open { visibility: visible; pointer-events: auto; }

.mobile-nav__panel {
  position: absolute; inset: 0; background: var(--dfmn-white);
  display: flex; flex-direction: column;
  opacity: 0; transition: opacity 0.35s ease;
  timeline-scope: --nav-scroll;
}
.mobile-nav.is-open .mobile-nav__panel { opacity: 1; }

.mobile-nav__gradient {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 160% 45% at 80% var(--grad-y),
      rgba(77,150,255,.10) 0%, rgba(168,208,250,.06) 40%, transparent 65%),
    radial-gradient(ellipse 130% 35% at 15% calc(var(--grad-y) + 25%),
      rgba(208,228,248,.12) 0%, rgba(232,240,250,.06) 45%, transparent 60%),
    radial-gradient(circle at 55% calc(var(--grad-y) + 45%),
      rgba(91,163,255,.05) 0%, transparent 40%);
  opacity: 0;
  transition: opacity .4s ease;
}

/* ═══ Nav Header ═══ */
.mobile-nav__header {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 60px 1fr 60px;
  align-items: center;
  padding: var(--dfmn-hdr-pt, 32px) var(--dfmn-hdr-px, 0px) var(--dfmn-hdr-pb, 28px);
  background: var(--dfmn-hdr-bg, var(--dfmn-white));
  border-block-end: 1px solid var(--dfmn-hdr-border, var(--dfmn-gray-150));
}
.mobile-nav__logo {
  grid-column: 2;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  text-decoration: none; justify-self: center;
}
.mobile-nav__logo-text {
  font-weight: 700;
  font-size: var(--dfmn-logo-fs, 24px);
  letter-spacing: var(--dfmn-logo-ls, 0.18em);
  text-transform: uppercase;
  color: var(--dfmn-logo-c, var(--dfmn-navy-900));
  text-wrap: balance;
}
.mobile-nav__logo-icon { width: 14px; height: 14px; color: var(--dfmn-blue-600); }
.mobile-nav__logo-img { max-height: var(--dfmn-logo-h, 40px); width: auto; object-fit: contain; }
.mobile-nav__close {
  grid-column: 3; justify-self: center; align-self: center;
  width: var(--dfmn-close-sz, 40px); height: var(--dfmn-close-sz, 40px);
  display: flex; align-items: center; justify-content: center;
  background: none; border: none; cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.mobile-nav__close svg {
  width: calc(var(--dfmn-close-sz, 40px) * 0.5);
  height: calc(var(--dfmn-close-sz, 40px) * 0.5);
  stroke: var(--dfmn-close-c, var(--dfmn-navy-600)); stroke-width: 1.5;
}

/* ═══ Hero Zone ═══ */
.mobile-nav__hero {
  position: relative; z-index: 2;
  background: var(--dfmn-hero-bg, var(--dfmn-white));
  padding: var(--dfmn-hero-pt, 16px) var(--dfmn-hero-px, 20px) var(--dfmn-hero-pb, 16px);
  margin-bottom: var(--dfmn-hero-mb, 0px);
  display: flex; flex-direction: column;
  gap: var(--dfmn-hero-gap, 12px);
  overflow: hidden;
}
/* Static hero (direct child of panel, outside scroll): prevent flex
   shrink so images aren't clipped; allow internal scroll when content
   exceeds dynamically-computed max-height. */
.mobile-nav__panel > .mobile-nav__hero {
  flex-shrink: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  max-height: var(--dfmn-hero-max-h, none);
}
.mobile-nav__panel > .mobile-nav__hero::-webkit-scrollbar { display: none; }
.mobile-nav__hero[data-max-h] {
  max-height: var(--dfmn-hero-max-h, none);
}
.mobile-nav__hero-heading {
  font-weight: 700; font-size: 1.125rem; color: var(--dfmn-navy-900);
  margin: 0 0 6px; line-height: 1.3;
}
.mobile-nav__hero-desc {
  font-size: .875rem; color: var(--dfmn-navy-500); line-height: 1.5;
  margin: 0;
}
.mobile-nav__hero-img {
  display: block; width: 100%; height: auto; border-radius: 8px;
}
.mobile-nav__hero-img--cover {
  object-fit: cover; max-height: var(--dfmn-hero-max-h, 200px);
}
.mobile-nav__hero-img--contain {
  object-fit: contain; max-height: var(--dfmn-hero-max-h, 200px);
}
.mobile-nav__hero-link {
  display: block; text-decoration: none; color: inherit;
}
.mobile-nav__hero-cta {
  display: inline-block; margin-top: 12px; padding: 10px 20px;
  text-decoration: none; font-weight: 600; font-size: .8125rem;
  letter-spacing: .03em; text-transform: uppercase; color: var(--dfmn-white);
  border-radius: 8px; background: var(--dfmn-blue-600);
}
.mobile-nav__hero-cta:active { opacity: .85; }

/* ═══ Scroll Container ═══ */
.mobile-nav__scroll {
  position: relative; z-index: 1;
  flex: 1 1 auto; min-height: 0;
  overflow-y: auto; overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch; scrollbar-width: none;
  touch-action: pan-y;
  scroll-timeline: --nav-scroll block;
  scroll-snap-type: y proximity;
}
.mobile-nav__scroll::-webkit-scrollbar { display: none; }

.nav-scroll-pad { flex-shrink: 0; pointer-events: none; }

/* ═══ Fade Overlays ═══ */
.mobile-nav__fade-top,
.mobile-nav__fade-bottom {
  position: absolute; inset-inline: 0; height: 80px; z-index: 2;
  pointer-events: none;
}
.mobile-nav__fade-top {
  top: var(--dfmn-scroll-top, calc(var(--dfmn-header-h, 95px) + var(--dfmn-hero-h, 0px)));
  background: linear-gradient(to bottom,
    oklch(100% 0 0) 0%, oklch(100% 0 0 / .7) 40%, oklch(100% 0 0 / 0) 100%);
}
.mobile-nav__fade-bottom {
  bottom: var(--dfmn-cta-h, 0px);
  background: linear-gradient(to top,
    oklch(100% 0 0) 0%, oklch(100% 0 0 / .7) 40%, oklch(100% 0 0 / 0) 100%);
}

/* ═══ Center Band ═══ */
.mobile-nav__center-band {
  position: absolute;
  left: 0; right: 0;
  top: var(--dfmn-band-top, 50%);
  translate: 0 -50%;
  height: 54px;
  background: var(--dfmn-blue-50);
  border: 1px solid var(--dfmn-blue-200);
  border-radius: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity .3s ease;
}
.mobile-nav.is-open .mobile-nav__center-band { opacity: 1; }
.mobile-nav:has(.has-submenu.is-expanded) .mobile-nav__center-band { opacity: 0; }

/* ═══ Nav List ═══ */
.mobile-nav .nav-list {
  list-style: none; padding: 0; margin: 0;
}
.mobile-nav .nav-item {
  border-block-end: 1px solid var(--dfmn-gray-150);
  transform-origin: center center;
}
.mobile-nav .nav-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; text-decoration: none; color: var(--dfmn-navy-900);
  font-size: 1rem; font-weight: 500;
  -webkit-tap-highlight-color: transparent;
  transform-origin: center center;
  scroll-snap-align: center;
}
.mobile-nav .nav-link:active { background: var(--dfmn-gray-50); }
.mobile-nav .nav-item.is-selected .nav-link { color: var(--dfmn-blue-600); }

/* ═══ Submenu Chevron ═══ */
.mobile-nav .submenu-chevron {
  display: flex; align-items: center; flex-shrink: 0; margin-inline-start: 8px;
  transition: transform .35s var(--dfmn-ease-spring);
}
.mobile-nav .submenu-chevron svg {
  width: 16px; height: 16px; stroke: var(--dfmn-gray-400);
  stroke-width: 1.5; fill: none; transition: stroke .25s ease;
}
.mobile-nav .nav-item.is-expanded .submenu-chevron { transform: rotate(180deg); }
.mobile-nav .nav-item.is-expanded .submenu-chevron svg { stroke: var(--dfmn-blue-600); }

/* ═══ iOS Picker (Submenu Accordion) ═══ */
.mobile-nav .picker-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .4s var(--dfmn-ease-out-expo);
  overflow: hidden;
}
.mobile-nav .nav-item.is-expanded .picker-wrap { grid-template-rows: 1fr; }

.mobile-nav .ios-picker {
  position: relative;
  background: var(--dfmn-gray-50);
  min-height: 0;
  overflow: hidden;
}
.mobile-nav .ios-picker__band {
  position: absolute;
  left: 20px; right: 20px; top: 50%;
  height: var(--dfmn-picker-item-h);
  translate: 0 -50%;
  background: var(--dfmn-blue-50);
  border-top: 1px solid var(--dfmn-gray-200);
  border-bottom: 1px solid var(--dfmn-gray-200);
  border-radius: 8px;
  pointer-events: none;
  z-index: 1;
}
.mobile-nav .ios-picker__mask-top,
.mobile-nav .ios-picker__mask-bottom {
  position: absolute; left: 0; right: 0; z-index: 2; pointer-events: none;
}
.mobile-nav .ios-picker__mask-top {
  top: 0; height: 45%;
  background: linear-gradient(to bottom,
    var(--dfmn-gray-50) 0%, oklch(from var(--dfmn-gray-50) l c h / .8) 40%, oklch(from var(--dfmn-gray-50) l c h / 0) 100%);
}
.mobile-nav .ios-picker__mask-bottom {
  bottom: 0; height: 45%;
  background: linear-gradient(to top,
    var(--dfmn-gray-50) 0%, oklch(from var(--dfmn-gray-50) l c h / .8) 40%, oklch(from var(--dfmn-gray-50) l c h / 0) 100%);
}

.mobile-nav .ios-picker__scroll {
  position: relative;
  height: calc(var(--dfmn-picker-item-h) * var(--dfmn-picker-rows));
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  touch-action: pan-y;
  z-index: 3;
}
.mobile-nav .ios-picker__scroll::-webkit-scrollbar { display: none; }

.mobile-nav .ios-picker__pad {
  height: calc(var(--dfmn-picker-item-h) * 2);
  flex-shrink: 0;
}
.mobile-nav .ios-picker__item {
  height: var(--dfmn-picker-item-h);
  display: flex;
  align-items: center;
  scroll-snap-align: center;
  animation: dfmn-picker-3d linear both;
  animation-timeline: view(block);
  animation-range: cover 0% cover 100%;
}
.mobile-nav .ios-picker__item a {
  display: block;
  width: 100%;
  padding: 0 32px;
  text-decoration: none;
  color: var(--dfmn-navy-600);
  font-size: 1rem;
  font-weight: 500;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-tap-highlight-color: transparent;
  transform-origin: center center;
  animation: dfmn-picker-link linear both;
  animation-timeline: view(block);
  animation-range: cover 0% cover 100%;
}

/* ═══ CTA Button ═══ */
.mobile-nav .nav-cta {
  display: block; margin: 24px; padding: 15px 24px; text-align: center;
  text-decoration: none; font-weight: 600; font-size: .875rem;
  letter-spacing: .04em; text-transform: uppercase; color: var(--dfmn-white);
  border-radius: 10px; background: var(--dfmn-blue-600);
  box-shadow: 0 4px 16px oklch(from var(--dfmn-blue-600) l c h / .2);
}
.mobile-nav .nav-cta--fixed {
  position: relative; z-index: 3;
  flex-shrink: 0;
}
.mobile-nav .nav-cta:active { background: var(--dfmn-blue-700); }

/* ═══ Custom Scroll Track ═══ */
.mobile-nav .scroll-track {
  position: fixed; right: 6px; top: 96px; bottom: 16px; width: 3px;
  z-index: 160; border-radius: 3px; background: var(--dfmn-gray-150);
  opacity: 0; transition: opacity .3s ease;
}
.mobile-nav.is-open .scroll-track { opacity: 1; transition-delay: .3s; }
.mobile-nav .scroll-track__thumb {
  width: 100%; border-radius: 3px;
  background: linear-gradient(to bottom, var(--dfmn-blue-400), var(--dfmn-blue-600));
  height: calc(var(--dfmn-thumb-pct, 15) * 1%);
  transform-origin: top; scale: 1 0;
}

/* ═══ Keyframes ═══ */
@keyframes dfmn-gradient-follow {
  from { --grad-y: 0%; }
  to   { --grad-y: 100%; }
}
@keyframes dfmn-scroll-item-3d {
  from       { transform: perspective(400px) rotateX(45deg) scale(0.78); opacity: 0.05; }
  45%, 55%   { transform: perspective(400px) rotateX(0deg)  scale(1);    opacity: 1; }
  to         { transform: perspective(400px) rotateX(-45deg) scale(0.78); opacity: 0.05; }
}
@keyframes dfmn-scroll-cta-3d {
  from       { transform: perspective(400px) rotateX(45deg) scale(0.78); opacity: 0.05; }
  45%, 55%   { transform: perspective(400px) rotateX(0deg)  scale(1);    opacity: 1; }
  to         { transform: perspective(400px) rotateX(-45deg) scale(0.78); opacity: 0.05; }
}
@keyframes dfmn-picker-3d {
  from { transform: perspective(300px) rotateX(50deg);  opacity: 0; }
  50%  { transform: perspective(300px) rotateX(0deg);   opacity: 1; }
  to   { transform: perspective(300px) rotateX(-50deg); opacity: 0; }
}
@keyframes dfmn-picker-link {
  from       { transform: scale(0.75); color: var(--dfmn-navy-600); font-weight: 400; }
  45%, 55%   { transform: scale(1);    color: var(--dfmn-blue-600); font-weight: 600; }
  to         { transform: scale(0.75); color: var(--dfmn-navy-600); font-weight: 400; }
}
@keyframes dfmn-thumb-pos {
  from { transform: scaleY(1) translateY(0%); }
  to   { transform: scaleY(1) translateY(calc((100 / var(--dfmn-thumb-pct, 15) - 1) * 100%)); }
}

/* ═══ Scroll-Driven Activation ═══ */
.mobile-nav.is-open .mobile-nav__gradient {
  opacity: 1;
  animation: dfmn-gradient-follow linear both;
  animation-timeline: --nav-scroll;
}
.mobile-nav.is-open .nav-link {
  animation: dfmn-scroll-item-3d linear both;
  animation-timeline: view(block);
  animation-range: cover 0% cover 100%;
}
/* Only animate CTA *inside* the scroll container; the fixed CTA outside must stay static. */
.mobile-nav.is-open .mobile-nav__scroll .nav-cta {
  animation: dfmn-scroll-cta-3d linear both;
  animation-timeline: view(block);
  animation-range: cover 0% cover 100%;
}
.mobile-nav.is-open .scroll-track__thumb {
  animation: dfmn-thumb-pos linear both;
  animation-timeline: --nav-scroll;
}

/* ═══ Mobile-Only: WP Navigation Overrides ═══ */
@media (width <= 1150px) {
  .wp-block-navigation__responsive-container-open {
    display: none !important;
  }
  .wp-block-navigation__responsive-container.is-menu-open,
  .wp-block-navigation__responsive-container.has-modal-open {
    display: none !important;
  }
  .dfmn-hamburger {
    display: flex;
  }
}

/* ═══ Accessibility ═══ */
@media (prefers-reduced-motion: reduce) {
  .mobile-nav,
  .mobile-nav *,
  .mobile-nav *::before,
  .mobile-nav *::after,
  .dfmn-hamburger,
  .dfmn-hamburger * {
    animation: none !important;
    transition-duration: .01ms !important;
  }
}