/* Persistent scroll nav — matches index.html nav-scrolled + header-chat-slot layout */

@keyframes persistentChromeIn {
  from {
    opacity: 0;
    transform: translate3d(0, -10px, 0) scale(0.94);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  @keyframes persistentChromeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
}

header nav,
.header-nav-row {
  position: relative;
  z-index: 10;
}

a.logo-srini {
  z-index: 10090 !important;
  pointer-events: auto !important;
}

.logo-srini--mark {
  display: flex;
  align-items: center;
  line-height: 0;
  font-size: 0;
  letter-spacing: 0;
  text-transform: none;
}

.logo-srini--mark img {
  display: block;
  width: 50px;
  height: 50px;
  object-fit: contain;
  filter: brightness(0) invert(26%);
}

@media screen and (min-width: 769px) {
  .header-nav-row {
    display: flex;
    align-items: stretch;
    justify-content: flex-end;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    z-index: 10002;
    pointer-events: none;
  }

  .header-nav-row nav,
  .header-nav-row .header-chat-slot {
    pointer-events: auto;
  }

  .header-nav-row nav {
    flex: 0 1 auto;
    min-width: 0;
  }

  .desk-menu .header-chat-slot {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    padding-top: 0;
    margin-left: 0.2rem;
    margin-right: 0.35rem;
    position: relative;
    overflow: visible;
    z-index: 2;
  }
}

@media screen and (min-width: 769px) {
  header nav {
    transition:
      top 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      right 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      width 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      height 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      padding 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      border-radius 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.45s cubic-bezier(0.16, 1, 0.3, 1),
      background 0.3s ease,
      box-shadow 0.3s ease,
      border-color 0.3s ease;
  }

  body.nav-persistent .logo-srini {
    animation: persistentChromeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
    position: fixed;
    top: 28px;
    left: 32px;
    z-index: 10080;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    white-space: nowrap;
    padding: 14px 16px 12px;
    border-radius: 9999px;
    color: #666;
    background: rgba(255, 255, 255, 0.66);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    box-shadow:
      0 14px 40px rgba(0, 0, 0, 0.08),
      inset 0 1px 0 rgba(255, 255, 255, 0.65);
  }

  body.nav-persistent .logo-srini.logo-srini--mark {
    top: 20px;
    width: 64px;
    height: 64px;
    min-width: 64px;
    min-height: 64px;
    padding: 0;
    box-sizing: border-box;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.55);
  }

  body.nav-persistent .logo-srini--mark img {
    width: 32px;
    height: 32px;
  }

  body.nav-persistent header nav {
    position: fixed;
    top: 20px;
    right: 100px;
    z-index: 10080;
    width: 64px;
    height: 64px;
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.55);
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.62);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    box-shadow:
      0 14px 40px rgba(0, 0, 0, 0.1),
      inset 0 1px 0 rgba(255, 255, 255, 0.65);
    cursor: pointer;
    animation: persistentChromeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.05s both;
  }

  body.nav-persistent .header-nav-row > .header-chat-slot,
  body.nav-persistent .header-nav-row > .srini-chat-nav-li,
  body.nav-persistent .desk-menu .header-chat-slot {
    animation: persistentChromeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.1s both;
  }

  body.nav-persistent .header-nav-row > .header-chat-slot,
  body.nav-persistent .header-nav-row > .srini-chat-nav-li {
    position: fixed;
    top: 20px;
    right: 24px;
    z-index: 10081;
    padding-top: 0;
    margin: 0;
    width: 64px;
    height: 64px;
    list-style: none;
    pointer-events: auto;
    opacity: 1;
  }

  body.nav-persistent .header-nav-row > .header-chat-slot .srini-chat-nav-btn,
  body.nav-persistent .header-nav-row > .srini-chat-nav-li .srini-chat-nav-btn {
    width: 64px;
    height: 64px;
    min-width: 64px;
    min-height: 64px;
    background: #eaeefb;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: none;
  }

  body.nav-persistent .header-nav-row > .header-chat-slot .srini-chat-nav-btn:hover,
  body.nav-persistent .header-nav-row > .header-chat-slot .srini-chat-nav-btn:focus-visible,
  body.nav-persistent .header-nav-row > .srini-chat-nav-li .srini-chat-nav-btn:hover,
  body.nav-persistent .header-nav-row > .srini-chat-nav-li .srini-chat-nav-btn:focus-visible,
  body.nav-persistent .desk-menu .header-chat-slot .srini-chat-nav-btn:hover,
  body.nav-persistent .desk-menu .header-chat-slot .srini-chat-nav-btn:focus-visible {
    background: #3b65ef;
    border-color: rgba(255, 255, 255, 0.65);
    animation: none;
    box-shadow: 0 2px 12px rgba(59, 101, 239, 0.22);
  }

  body.nav-persistent .header-nav-row > .header-chat-slot .srini-chat-nav-btn:hover .srini-chat-sparkle,
  body.nav-persistent .header-nav-row > .header-chat-slot .srini-chat-nav-btn:focus-visible .srini-chat-sparkle,
  body.nav-persistent .header-nav-row > .srini-chat-nav-li .srini-chat-nav-btn:hover .srini-chat-sparkle,
  body.nav-persistent .header-nav-row > .srini-chat-nav-li .srini-chat-nav-btn:focus-visible .srini-chat-sparkle,
  body.nav-persistent .desk-menu .header-chat-slot .srini-chat-nav-btn:hover .srini-chat-sparkle,
  body.nav-persistent .desk-menu .header-chat-slot .srini-chat-nav-btn:focus-visible .srini-chat-sparkle {
    color: #fff;
    fill: currentColor;
    stroke: currentColor;
  }

  body.nav-persistent .header-nav-row > .header-chat-slot .srini-chat-sparkle,
  body.nav-persistent .header-nav-row > .srini-chat-nav-li .srini-chat-sparkle {
    width: 28px;
    height: 28px;
  }

  body.chat-open.nav-persistent header nav {
    right: 476px;
  }

  body.chat-open.nav-persistent.nav-expanded header nav {
    right: 476px;
    width: min(560px, calc(100vw - 540px));
  }

  /* Case study headers use 100vw breakout; keep them out of the chat panel. */
  body.chat-open .frame #site-content-wrap > header,
  body.chat-open #site-content-wrap > header {
    width: auto !important;
    max-width: none !important;
    margin-inline: 0 !important;
  }

  @media screen and (min-width: 769px) {
    body.chat-open .chatbot-sidebar {
      z-index: 10120 !important;
    }
  }

  @media screen and (max-width: 768px) {
    body.chat-open {
      overflow: hidden;
    }
    body.chat-open .chatbot-sidebar {
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      width: 100% !important;
      height: 100%;
      height: 100dvh;
      border-radius: 0;
      z-index: 10150 !important;
    }
    body.chat-open .logo-srini {
      visibility: hidden !important;
      pointer-events: none !important;
    }
  }

  body.nav-persistent.nav-expanded header nav {
    right: 100px;
    width: fit-content;
    min-width: 64px;
    max-width: min(560px, calc(100vw - 128px));
    padding: 0;
    overflow: hidden;
    cursor: default;
  }

  body.nav-persistent header nav::before,
  body.nav-persistent header nav::after {
    content: '';
    position: absolute;
    left: 19px;
    right: auto;
    height: 2px;
    border-radius: 9999px;
    background: #2b2b2b;
    transition:
      top 0.25s ease,
      left 0.25s ease,
      right 0.25s ease,
      width 0.25s ease,
      transform 0.25s ease,
      opacity 0.2s ease;
  }

  body.nav-persistent header nav::before {
    top: 25px;
    width: 24px;
  }

  body.nav-persistent header nav::after {
    top: 34px;
    width: 16px;
  }

  body.nav-persistent.nav-expanded header nav::before {
    top: 31px;
    left: auto;
    right: 16px;
    width: 20px;
    transform: rotate(45deg);
  }

  body.nav-persistent.nav-expanded header nav::after {
    top: 31px;
    left: auto;
    right: 16px;
    width: 20px;
    transform: rotate(-45deg);
  }

  body.nav-persistent:not(.nav-expanded) header nav .desk-menu {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }

  body.nav-persistent header nav .desk-menu {
    width: auto;
    max-width: 100%;
    height: 100%;
    padding-top: 0 !important;
    padding-left: 8px;
    padding-right: 52px;
    margin: 0;
    gap: 8px;
    justify-content: flex-start !important;
    opacity: 0;
    transform: translateX(18px);
    pointer-events: none;
    transition:
      opacity 0.22s ease,
      transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  }

  body.nav-persistent.nav-expanded header nav .desk-menu {
    position: static;
    width: auto;
    height: 100%;
    clip: auto;
    clip-path: none;
    overflow: visible;
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
    transition-delay: 0.08s;
  }

  body.nav-persistent header nav .desk-menu li a:not(.get-in-touch-btn) {
    padding: 0 22px !important;
  }

  body.nav-persistent header nav .desk-menu li:first-child a:not(.get-in-touch-btn) {
    padding-left: 22px !important;
  }

  body.nav-persistent header nav .get-in-touch-btn {
    padding: 12px 22px !important;
    margin-left: 8px !important;
    margin-right: 0;
  }
}

.header-chat-slot {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  overflow: visible;
  z-index: 2;
  position: relative;
}

body.chat-open .header-chat-slot {
  display: none !important;
}

@media screen and (max-width: 768px) {
  .header-chat-slot {
    display: none !important;
  }
}

/* Outline sparkle at rest; solid fill on hover / focus */
.srini-chat-nav-btn:hover .srini-chat-sparkle,
.srini-chat-nav-btn:focus-visible .srini-chat-sparkle,
.srini-chat-fab:hover .srini-chat-fab-icon,
.srini-chat-fab:focus-visible .srini-chat-fab-icon {
  fill: currentColor;
  stroke: currentColor;
}