/* ================================================================
   AICodeCampus shared foundation
   Common tokens, semantic elements, spacing, and reusable utilities.
   ================================================================ */

:root {
  --color-primary: #ee2025;
  --color-primary-dark: #ca0c13;
  --color-link: #0d6efd;
  --color-link-dark: #0b5ed7;
  --color-text: #101114;
  --color-muted: #74767d;
  --color-border: #e8e8eb;
  --color-surface: #ffffff;
  --color-page: #f4f4f5;
  --color-soft: #fff1f1;
  /* Backward-compatible aliases used by page-specific styles. */
  --red: var(--color-primary);
  --ink: var(--color-text);
  --muted: var(--color-muted);
  --line: var(--color-border);
  --pink: var(--color-soft);
  --sans: var(--font-body);
  --display: var(--font-heading);
  --font-body: "Poppins", Arial, sans-serif;
  --font-heading: "Poppins", Arial, sans-serif;
  --fs-66: clamp(52px, 5vw, 66px);
  --fs-50: clamp(36px, 4vw, 50px);
  --fs-46: clamp(36px, 3.5vw, 46px);
  --fs-30: clamp(25px, 2.4vw, 30px);
  --fs-28: clamp(24px, 2.2vw, 28px);
  --fs-27: clamp(23px, 2.1vw, 27px);
  --fs-25: clamp(22px, 2vw, 25px);
  --fs-22: clamp(19px, 1.7vw, 22px);
  --fs-20: clamp(18px, 1.5vw, 20px);
  --fs-18: clamp(16px, 1.3vw, 18px);
  --fs-17: clamp(16px, 1.2vw, 17px);
  --fs-16: clamp(15px, 1.1vw, 16px);
  --fs-15: clamp(14px, 1vw, 15px);
  --fs-14: clamp(13px, 0.95vw, 14px);
  --fs-13: 13px;
  --fs-12-5: 12.5px;
  --fs-12: 12px;
  --fs-11: 11px;
  --fs-10: 10px;
  --fs-9: 9px;
  --fs-8: 8px;

  /* Bootstrap 5-compatible breakpoint reference values. */
  --breakpoint-xs: 0;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;

  --container: var(--breakpoint-xxl);
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--color-page);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-16);
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: -0.01em;
}

body.locked {
  overflow: hidden;
}
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding: 0 38px 12px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-top: 0;
  margin-bottom: var(--space-4);
  color: inherit;
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
}

h1 {
  font-size: var(--fs-50);
}

h2 {
  font-size: var(--fs-30);
}

h3 {
  font-size: var(--fs-20);
}

h4 {
  font-size: var(--fs-18);
}

h5 {
  font-size: var(--fs-16);
}

h6 {
  font-size: var(--fs-14);
}

p {
  margin-top: 0;
  margin-bottom: var(--space-6);
}

b,
strong {
  font-weight: 600;
}

br {
  content: "";
}

hr {
  height: 1px;
  margin: var(--space-8) 0;
  border: 0;
  background: var(--color-border);
}

section {
  position: relative;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

img,
svg,
video {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

.wrap {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 28px;
}

.skip {
  position: fixed;
  top: -60px;
  left: 10px;
  z-index: 999;
  padding: 10px;
  background: var(--color-surface);
}

.skip:focus {
  top: 10px;
}

/* ----------------------------------------------------------------
   Shared post author and publication date
   ---------------------------------------------------------------- */

.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--color-muted);
  font-size: var(--fs-14);
}

.post-meta::before,
.post-meta time::before {
  content: "\2022";
  flex: 0 0 auto;
  color: var(--ink);
  font-size: var(--fs-14);
  line-height: 1;
}

.post-meta time {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.post-meta strong,
.post-meta a {
  color: var(--ink);
  font-weight: 600;
}

/* ----------------------------------------------------------------
   Shared image category badge
   ---------------------------------------------------------------- */

.post-category-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  padding: 7px 11px;
  border-radius: 5px;
  background: var(--red);
  box-shadow: 0 7px 18px rgba(238, 32, 37, 0.24);
  color: #fff;
  font-size: var(--fs-13);
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.2;
  text-transform: uppercase;
}

/* ----------------------------------------------------------------
   Shared FAQ accordion
   ---------------------------------------------------------------- */

.site-faq details {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.site-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 0;
  color: var(--ink);
  cursor: pointer;
  font-size: var(--fs-16);
  font-weight: 600;
  list-style: none;
}

.site-faq summary::-webkit-details-marker {
  display: none;
}

.site-faq summary i {
  flex: 0 0 auto;
  color: var(--red);
  transition: transform 0.3s ease;
}

.site-faq details[open] summary i {
  transform: rotate(45deg);
}

.site-faq__answer {
  overflow: hidden;
}

.site-faq__answer p {
  max-width: 780px;
  margin: -3px 0 22px;
  padding-right: 45px;
  color: var(--color-muted);
  font-size: var(--fs-14);
  line-height: 1.75;
}

@media (max-width: 575.98px) {
  .site-faq__answer p {
    padding-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-faq summary i {
    transition: none;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  padding: 13px 23px;
  border: 0;
  border-radius: var(--radius-sm);
  background: linear-gradient(
    135deg,
    var(--color-primary-dark),
    var(--color-primary)
  );
  color: #ffffff;
  font-size: var(--fs-16);
  font-weight: 600;
  transition:
    transform 0.2s ease,
    filter 0.2s ease;
}

.btn:hover {
  filter: brightness(0.9);
  transform: translateY(-2px);
}

.m-0 {
  margin: 0 !important;
}

.mt-0 {
  margin-top: 0 !important;
}

.mb-0 {
  margin-bottom: 0 !important;
}

.mt-4 {
  margin-top: var(--space-4) !important;
}

.mb-4 {
  margin-bottom: var(--space-4) !important;
}

.my-6 {
  margin-block: var(--space-6) !important;
}

.p-0 {
  padding: 0 !important;
}

.p-4 {
  padding: var(--space-4) !important;
}

.px-4 {
  padding-inline: var(--space-4) !important;
}

.py-6 {
  padding-block: var(--space-6) !important;
}

.text-center {
  text-align: center !important;
}

.text-muted {
  color: var(--color-muted) !important;
}

.section-spacing {
  padding-block: clamp(40px, 6vw, 72px);
}

@media (max-width: 767.98px) {
  .wrap {
    padding-inline: 18px;
  }
}

@media (max-width: 575.98px) {
  h1 {
    font-size: var(--fs-50);
  }

  h2 {
    font-size: var(--fs-30);
  }

  h3 {
    font-size: var(--fs-20);
  }
}

/* ================================================================
   Shared site header, navigation, search, off-canvas, and footer
   Reused by the homepage and all future inner pages.
   ================================================================ */

.app {
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
}

/* Featured card used inside shared mega menus. */
.mega-feature {
  align-self: stretch;
  padding: 22px;
  border-radius: 8px;
  background: linear-gradient(145deg, #19191b, #2c2c30);
  color: #ffffff;
}

.mega-feature b {
  display: block;
  font-size: var(--fs-17);
}

.mega-feature p {
  margin: 8px 0 18px;
  color: #c8c8cc;
  font-size: var(--fs-14);
}

.mega-feature a {
  color: #ffffff;
  font-weight: 600;
}

header {
  /*height: 112px;*/
  background: #fff;
  position: relative;
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 30px;
}

.hamb,
.actions button {
  border: 0;
  background: none;
}

.hamb {
  font-size: var(--fs-20);
}

.logo {
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.logo img {
  width: 300px;
  height: auto;
  object-fit: contain;
}

.mainnav {
  display: flex;
  align-items: center;
  gap: 25px;
  margin-left: auto;
}

.mobile-nav-head {
  display: none;
}

.mainnav > a,
.navgroup > a {
  font-size: var(--fs-14);
  font-weight: 700;
  padding: 48px 0 13px;
  position: relative;
}

.mainnav > a:after,
.navgroup > a:after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 100%;
  height: 2px;
  background: var(--red);
  transition: 0.2s;
}

.mainnav a:hover:after,
.mainnav a.active:after {
  right: 0;
}

.navgroup:hover > a:after,
.navgroup:focus-within > a:after {
  right: 0;
}

.navgroup > a::before {
  content: "";
  order: 2;
  width: 7px;
  height: 7px;
  margin-left: 8px;
  border-right: 2px solid var(--red);
  border-bottom: 2px solid var(--red);
  transform: translateY(-2px) rotate(45deg);
  transition: transform 0.2s ease;
}

.navgroup:hover > a::before,
.navgroup:focus-within > a::before {
  transform: translateY(2px) rotate(225deg);
}

.navgroup {
  position: relative;
}

.mega {
  position: absolute;
  top: 66px;
  right: -140px;
  width: 440px;
  padding: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  background: #fff;
  border: 1px solid #d9d9dd;
  border-radius: 9px;
  box-shadow: 0 20px 50px #1112;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: 0.2s;
  z-index: 20;
}

.navgroup:hover .mega,
.navgroup:focus-within .mega {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.mega strong {
  font: 600 13px var(--display);
  display: block;
  margin-bottom: 7px;
}

.mega a {
  display: block;
  padding: 5px 0;
  color: #666;
  font-size: var(--fs-14);
}

.actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.actions button {
  position: relative;
  padding: 7px;
}

.search-toggle {
  font-size: var(--fs-30);
  line-height: 1;
}

.search {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  border-top: 1px solid var(--line);
  padding: 12px 28px;
  z-index: 10;
}

.search.open {
  display: flex;
}

.search input {
  width: min(500px, 75%);
  margin-left: auto;
  border: 1px solid var(--line);
  padding: 11px;
  border-radius: 5px 0 0 5px;
}

.search button {
  margin-right: auto;
  border: 0;
  background: #111;
  color: #fff;
  padding: 0 20px;
  border-radius: 0 5px 5px 0;
}

#footer{
  background: #fff;
}

.site-footer {
  margin-top: 44px;
  border-top: 1px solid var(--line);
  padding: 27px 7px 10px;
  background: #fff;
}

.site-footer > div {
  display: flex;
  align-items: center;
  gap: 30px;
}

.site-footer-logo {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding-right: 28px;
  border-right: 1px solid var(--line);
}

.site-footer-logo img {
  width: 190px;
  height: auto;
  display: block;
}

.site-footer nav {
  display: flex;
  gap: 37px;
  font-size: var(--fs-14);
}

.site-footer aside {
  margin-left: auto;
  display: flex;
  gap: 18px;
  font-weight: 800;
}

.site-footer aside a {
  min-width: 28px;
  min-height: 28px;
  display: inline-grid;
  place-items: center;
  font-size: var(--fs-22);
  line-height: 1;
}

.site-footer aside a:hover {
  color: var(--red);
}

.site-footer > p {
  border-top: 1px solid var(--line);
  margin: 22px 0 0;
  padding-top: 17px;
  color: #888;
  font-size: var(--fs-14);
}

.scrim {
  display: block;
  position: fixed;
  inset: 0;
  background: #0007;
  border: 0;
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.3s ease,
    visibility 0.3s;
}

.scrim.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

@media (max-width: 991.98px) {
  .mainnav {
    display: none;
  }

  .actions {
    margin-left: auto;
  }

  .search-toggle {
    font-size: var(--fs-30);
    transform: scale(1.12);
    transform-origin: center;
  }

  .site-footer nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 24px;
    text-align: center;
  }

  .site-footer nav a {
    min-width: 0;
    overflow-wrap: anywhere;
  }

  .site-footer > div {
    width: 100%;
    flex-direction: column;
    align-items: center;
    gap: 18px;
  }

  .site-footer-logo {
    max-width: 100%;
    justify-content: center;
    padding-right: 0;
    border-right: 0;
  }

  .site-footer-logo img {
    max-width: 100%;
  }

  .site-footer aside {
    width: 100%;
    margin-left: 0;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
  }

  .site-footer aside a {
    min-width: 34px;
    min-height: 34px;
    font-size: var(--fs-28);
  }

  .site-footer > p {
    width: 100%;
    text-align: center;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 575.98px) {
  header {
    height: 85px;
  }

  .header-inner {
    gap: 12px;
  }

  .logo img {
    width: 230px;
  }

  .site-footer > div {
    align-items: center;
    gap: 14px;
  }

  .site-footer nav {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .site-footer aside {
    margin-left: 0;
    gap: 8px;
  }

  .site-footer-logo {
    padding-right: 0;
  }

  .site-footer-logo img {
    width: 135px;
  }
}

.mainnav > a,
.navgroup > a {
  font-size: var(--fs-14);
  letter-spacing: -0.02em;
}

.mega strong {
  font-size: var(--fs-14);
}

.mega a {
  font-size: var(--fs-14);
}

.site-footer nav,
.site-footer > p {
  font-size: var(--fs-14);
}

.header-inner {
  gap: 22px;
}

.logo,
.actions {
  flex: 0 0 auto;
}

.mainnav {
  flex: 1 1 auto;
  justify-content: center;
  gap: 20px;
  flex-wrap: nowrap;
  min-width: 0;
}

.mainnav > a,
.navgroup,
.navgroup > a {
  white-space: nowrap;
}

.mainnav > a,
.navgroup > a {
  font-size: var(--fs-14);
  font-weight: 600;
  letter-spacing: -0.025em;
}

@media (min-width: 992px) and (max-width: 1199.98px) {
  .header-inner {
    gap: 10px;
    padding-inline: 20px;
  }

  .header-inner > .logo img {
    width: 210px;
  }

  .mainnav {
    gap: 8px;
  }

  .mainnav > a,
  .navgroup > a {
    font-size: var(--fs-14);
  }

  .actions {
    gap: 4px;
  }

  .actions .sign-in {
    padding-inline: 8px;
  }
}

.hamb {
  display: none;
  order: 4;
  flex: 0 0 auto;
}

.navgroup > a {
  display: block;
  white-space: nowrap;
}

@media (max-width: 991.98px) {
  .hamb {
    display: block;
    margin-left: 2px;
    font-size: var(--fs-30);
  }

  .actions {
    margin-left: auto;
    order: 3;
  }

  .logo {
    order: 1;
  }

  .mainnav {
    order: 2;
  }
}

@media (min-width: 992px) {
  .header-inner {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
  }

  .header-inner > .logo {
    grid-column: 1;
    justify-self: start;
  }

  .mainnav {
    grid-column: 2;
    justify-self: center;
    margin: 0;
    height: 112px;
    align-items: center;
  }

  .actions {
    grid-column: 3;
    justify-self: end;
  }

  .mainnav > a,
  .navgroup > a {
    height: 112px;
    padding: 0;
    display: flex;
    align-items: center;
  }

  .navgroup {
    height: 112px;
    display: flex;
    align-items: center;
  }

  .mainnav > a:after,
  .navgroup > a:after {
    bottom: 25px;
  }

  .mega {
    top: 100px;
  }
}

.header-inner {
  position: relative;
}

.mainnav {
  gap: 18px;
}

.mainnav > a,
.navgroup > a {
  font-size: var(--fs-14);
}

.navgroup {
  position: static;
}

.mega {
  right: 0;
  left: 0;
  width: 100%;
  padding: 28px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 28px;
  border-top: 1px solid var(--red);
  transform: translateY(8px);
}

.navgroup:hover .mega,
.navgroup:focus-within .mega {
  transform: translateY(0);
}

.mega--projects {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ai-menu {
  top: 96px;
  right: auto;
  left: 50%;
  width: 270px;
  grid-template-columns: 1fr;
  overflow: visible;
  transform: translate(-50%, 8px);
}

.navgroup--ai {
  position: relative;
}

.navgroup--ai:hover > .ai-menu,
.navgroup--ai:focus-within > .ai-menu {
  transform: translate(-50%, 0);
}

.multi-level {
  position: relative;
}

.multi-level > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.multi-level > a span {
  color: var(--red);
  font-size: var(--fs-18);
  line-height: 1;
}

.sub-menu {
  position: absolute;
  top: -18px;
  right: calc(100% + 20px);
  left: auto;
  width: 230px;
  padding: 18px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--red);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 20px 50px #1112;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-8px);
  transition: 0.2s ease;
}

.sub-menu::before {
  content: "";
  position: absolute;
  top: 0;
  left: 100%;
  width: 22px;
  height: 100%;
}

.multi-level:hover > .sub-menu,
.multi-level:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.mega section {
  min-width: 0;
}

.mega strong {
  margin-top: 10px;
  color: var(--ink);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
}

.mega section > strong:first-child {
  margin-top: 0;
}

.mega a {
  padding: 6px 0;
  color: #666a72;
  font-size: var(--fs-14);
  transition: color 0.2s ease;
}

.mega a:hover {
  color: var(--red);
}

.actions .sign-in {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  white-space: nowrap;
  border-radius: 5px;
  background: var(--red);
  color: #ffffff;
  font-size: var(--fs-14);
  font-weight: 600;
  transition:
    background-color 0.2s ease,
    transform 0.2s ease;
}

.actions .sign-in:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
}

@media (max-width: 991.98px) {
  .actions .sign-in {
    display: none;
  }
}

@media (min-width: 992px) {
  .navgroup:not(.navgroup--ai):not(:has(> .full-width)) {
    position: relative;
  }

  .navgroup:not(.navgroup--ai):not(:has(> .full-width)) > .mega {
    right: auto;
    left: 50%;
    width: max-content;
    max-width: calc(100vw - 40px);
    grid-template-columns: repeat(4, minmax(170px, 190px));
    transform: translate(-50%, 8px);
  }

  .navgroup:not(.navgroup--ai):not(:has(> .full-width)):hover > .mega,
  .navgroup:not(.navgroup--ai):not(:has(> .full-width)):focus-within
    > .mega {
    transform: translate(-50%, 0);
  }

  .navgroup:not(.navgroup--ai):not(:has(> .full-width)) > .mega--projects {
    grid-template-columns: repeat(3, minmax(170px, 190px));
  }

  .navgroup:has(> .full-width) {
    position: static;
  }

  .navgroup > .full-width {
    right: 0;
    left: 0;
    width: 100%;
    max-width: none;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    transform: translateY(8px);
  }

  .navgroup:hover > .full-width,
  .navgroup:focus-within > .full-width {
    transform: translateY(0);
  }
}

/* ================================================================
   Shared Header: Unified Mobile and Tablet Navigation
   The desktop navigation becomes the offcanvas below the lg breakpoint.
   ================================================================ */

@media (max-width: 991.98px) {
  .mainnav.unified-nav {
    display: block;
    position: fixed;
    inset: 0 auto 0 0;
    width: min(380px, 88vw);
    height: 100dvh;
    margin: 0;
    padding: 22px 24px 34px;
    overflow-x: hidden;
    overflow-y: auto;
    background: #fff;
    box-shadow: 0 0 32px rgba(0, 0, 0, 0.2);
    visibility: hidden;
    transform: translate3d(-105%, 0, 0);
    transition:
      transform 0.38s cubic-bezier(0.22, 1, 0.36, 1),
      visibility 0.38s;
    z-index: 100;
    will-change: transform;
  }

  .mainnav.unified-nav.open {
    visibility: visible;
    transform: translate3d(0, 0, 0);
  }

  .unified-nav .mobile-nav-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 16px;
    margin-bottom: 22px;
  }

  .unified-nav .mobile-nav-head .logo {
    order: 1;
    flex: 0 1 auto;
    display: inline-flex;
    justify-content: flex-start;
    margin: 0;
  }

  .unified-nav .mobile-nav-head .logo img {
    width: 185px;
    max-width: 100%;
  }

  .unified-nav .mobile-nav-head button {
    order: 2;
    flex: 0 0 auto;
    margin: 0 0 0 auto;
    padding: 4px 6px;
    border: 0;
    background: transparent;
    color: var(--ink);
    font-size: var(--fs-30);
    line-height: 1;
    cursor: pointer;
  }

  .mainnav.unified-nav > a,
  .mainnav.unified-nav .navgroup > a {
    width: 100%;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-size: var(--fs-16);
    font-weight: 600;
  }

  .mainnav.unified-nav > a::after,
  .mainnav.unified-nav .navgroup > a::after {
    display: none;
  }

  .mainnav.unified-nav .navgroup {
    height: auto;
    display: block;
    position: static;
  }

  .mainnav.unified-nav .navgroup > a::before {
    width: 8px;
    height: 8px;
    margin-left: 12px;
    border-color: var(--red);
  }

  .mainnav.unified-nav .navgroup.mobile-open > a::before {
    transform: translateY(2px) rotate(225deg);
  }

  .mainnav.unified-nav .mega {
    width: 100%;
    max-width: none;
    display: none;
    position: static;
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 18px 14px 20px;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .mainnav.unified-nav .navgroup.mobile-open > .mega {
    display: grid;
    animation: mobile-menu-reveal 0.28s ease both;
  }

  .mainnav.unified-nav .mega strong {
    margin-top: 0;
    color: var(--red);
  }

  .mainnav.unified-nav .mega a {
    padding: 7px 0;
  }

  .mainnav.unified-nav .mega-feature {
    padding: 18px;
  }

  .mainnav.unified-nav .ai-menu {
    width: 100%;
    left: auto;
  }

  .mainnav.unified-nav .multi-level > a span {
    color: var(--red);
  }

  .mainnav.unified-nav .multi-level .sub-menu {
    display: none;
    position: static;
    width: 100%;
    margin: 7px 0 4px 12px;
    padding: 12px 16px;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .mainnav.unified-nav .multi-level.mobile-open .sub-menu {
    display: block;
    animation: mobile-menu-reveal 0.25s ease both;
  }
}

@keyframes mobile-menu-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}