:root {
  --enh-header-height: 5.4rem;
  --enh-header-height-mobile: 4.9rem;
  --enh-header-max-width: 1200px;
  --enh-focus-ring: 0 0 0 3px rgba(42, 120, 204, 0.45);
  --enh-header-bg: linear-gradient(135deg, rgba(4, 0, 30, 0.97) 0%, rgba(10, 10, 42, 0.95) 55%, rgba(42, 120, 204, 0.18) 100%);
  --enh-header-bg-scrolled: linear-gradient(135deg, rgba(4, 0, 30, 0.99) 0%, rgba(8, 8, 36, 0.98) 60%, rgba(42, 120, 204, 0.22) 100%);
  --enh-header-border: rgba(55, 77, 120, 0.58);
  --enh-header-shadow: 0 18px 42px rgba(2, 8, 28, 0.25);
}

html {
  scroll-behavior: smooth;
}

body {
  padding-top: var(--enh-header-height) !important;
}

body.menu-open {
  overflow: hidden;
  touch-action: none;
}

.skip-link {
  position: fixed;
  left: 0.75rem;
  top: -100px;
  z-index: 4000;
  background: var(--color-secondary-bg, #0A0A2A);
  color: var(--color-heading, #FFFFFF);
  border: 1px solid var(--color-border, rgba(31, 31, 58, 0.9));
  border-radius: 10px;
  padding: 0.65rem 0.9rem;
  text-decoration: none;
  transition: top 0.25s ease;
}

.skip-link:focus {
  top: 0.75rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: none;
  box-shadow: var(--enh-focus-ring);
  border-radius: 10px;
}

.main-header {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  min-height: var(--enh-header-height) !important;
  padding: 0 !important;
  background: var(--enh-header-bg) !important;
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--enh-header-border) !important;
  box-shadow: var(--enh-header-shadow);
  z-index: 2000 !important;
  will-change: transform, background-color;
  transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.main-header.scrolled {
  background: var(--enh-header-bg-scrolled) !important;
  border-bottom-color: rgba(77, 171, 247, 0.24) !important;
  box-shadow: 0 22px 46px rgba(2, 8, 28, 0.34);
}

.main-header.header-hidden {
  transform: translateY(calc(-1 * var(--enh-header-height) - 8px));
}

.main-header .site-nav__inner {
  max-width: var(--enh-header-max-width) !important;
  margin: 0 auto !important;
  padding: 0 2rem !important;
  min-height: var(--enh-header-height) !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.main-header .site-brand,
.main-header .nav__logo {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.9rem !important;
  padding: 0.28rem 0.45rem 0.28rem 0.28rem;
  border-radius: 999px;
  text-decoration: none !important;
  color: var(--color-heading, #FFFFFF) !important;
  flex-shrink: 0;
  min-width: 0;
  transition: background-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.main-header .site-brand:hover,
.main-header .nav__logo:hover {
  background: rgba(255, 255, 255, 0.03);
  box-shadow: 0 10px 24px rgba(2, 8, 28, 0.14);
}

.site-brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.35rem;
  height: 3.35rem;
  padding: 0.32rem;
  border-radius: 14px;
  background:
    linear-gradient(180deg, #ffffff 0%, #eef2f8 100%);
  border: 1px solid rgba(201, 162, 77, 0.55);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.6),
    0 8px 20px rgba(2, 8, 28, 0.25);
}

.site-brand__logo,
.mobile-menu__brand-mark {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 4px 10px rgba(2, 8, 28, 0.18));
}

.site-brand__lockup,
.mobile-menu__brand-copy {
  display: grid;
  gap: 0.16rem;
  min-width: 0;
}

.site-brand__name,
.mobile-menu__title {
  font-family: var(--font-heading, 'Poppins', sans-serif);
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--color-heading, #FFFFFF);
}

.site-brand__role,
.mobile-menu__subtitle {
  font-size: 0.69rem;
  line-height: 1.1;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(176, 184, 208, 0.88);
}

.main-header .nav__links-wrapper {
  margin-left: auto;
}

.main-header .nav__links {
  display: flex !important;
  align-items: center !important;
  gap: 0.75rem !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}

/* Keep spacing between nav items identical on every page — neutralize any
   Tailwind space-x-* margins so the flex `gap` above is the single source of spacing. */
.main-header .nav__links > :not([hidden]) ~ :not([hidden]) {
  margin-left: 0 !important;
  margin-right: 0 !important;
}

.main-header .nav__link {
  position: relative;
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.55rem !important;
  padding: 0.55rem 0.95rem !important;
  border-radius: 10px !important;
  color: var(--color-body, #B0B8D0) !important;
  text-decoration: none !important;
  font-weight: 600 !important;
  line-height: 1 !important;
  border: 1px solid transparent !important;
  background: transparent !important;
  transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.main-header .nav__link::after {
  content: "";
  position: absolute;
  left: 0.9rem;
  right: 0.9rem;
  bottom: 0.38rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(135deg, #2A78CC 0%, #4DABF7 100%);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}

.main-header .nav__link i,
.mobile-menu__link i {
  color: inherit;
  transition: transform 0.25s ease, color 0.25s ease;
}

/* Fixed-width, centered icons so every nav button has an identical icon
   column — keeps the spacing/margin around each label uniform across all tabs. */
.main-header .nav__link i {
  width: 1.05em !important;
  flex: 0 0 auto !important;
  text-align: center !important;
}

.main-header .nav__link:hover {
  color: var(--color-heading, #FFFFFF) !important;
  background: rgba(42, 120, 204, 0.14) !important;
  border-color: rgba(77, 171, 247, 0.3) !important;
  transform: none !important;
}

.main-header .nav__link.active {
  color: #FFFFFF !important;
  background: linear-gradient(135deg, rgba(42, 120, 204, 0.34) 0%, rgba(77, 171, 247, 0.16) 100%) !important;
  border-color: rgba(77, 171, 247, 0.55) !important;
  box-shadow: 0 6px 18px rgba(42, 120, 204, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transform: none !important;
}

/* pill fill + glow is the active indicator; hide the old inner underline */
.main-header .nav__link:hover::after,
.main-header .nav__link.active::after {
  transform: scaleX(0);
}

.main-header .nav__link:hover i,
.main-header .nav__link.active i,
.mobile-menu__link:hover i,
.mobile-menu__link.is-active i {
  color: var(--color-accent, #2A78CC);
  transform: scale(1.08);
}

.site-brand {
  display: inline-flex !important;
  align-items: center !important;
  gap: 0.8rem !important;
  min-width: 0;
}

.site-brand__mark {
  width: 2.9rem;
  height: auto;
  display: block;
  flex-shrink: 0;
  filter: drop-shadow(0 0 10px rgba(42, 120, 204, 0.18));
}

.site-brand__text {
  display: block;
  min-width: 0;
}

.site-brand__name {
  display: block;
  color: var(--color-heading, #FFFFFF);
  font-family: var(--font-heading, 'Poppins', sans-serif);
  font-size: 1.72rem;
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: 0;
  white-space: nowrap;
}

.menu-toggle,
.menu-close,
.mobile-menu__link,
.nav__link,
.nav a,
button,
.btn,
a {
  touch-action: manipulation;
}

.menu-toggle,
.menu-close,
.mobile-menu__link,
.footer__social a {
  min-width: 44px;
  min-height: 44px;
}

.main-header .menu-toggle {
  display: none !important;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-left: 0.6rem;
  border-radius: 14px;
  border: 1px solid rgba(77, 171, 247, 0.2);
  background: rgba(9, 16, 46, 0.92);
  color: var(--color-heading, #FFFFFF);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: transform 0.25s ease, border-color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
}

.main-header .menu-toggle:hover,
.main-header .menu-toggle.is-open {
  border-color: rgba(77, 171, 247, 0.45);
  background: rgba(12, 22, 60, 0.98);
  box-shadow: 0 12px 28px rgba(2, 8, 28, 0.28);
}

.main-header .menu-toggle i {
  transition: transform 0.25s ease;
}

.main-header .menu-toggle.is-open i {
  transform: rotate(90deg);
}

.mobile-menu {
  position: fixed !important;
  inset: 0 !important;
  z-index: 2500 !important;
  display: block;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: opacity 0.28s ease;
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.mobile-menu__overlay,
.mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 0, 30, 0.64);
  backdrop-filter: blur(6px);
}

.mobile-menu__panel,
.mobile-menu-content {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  height: 100dvh;
  width: min(88vw, 360px);
  padding: 1.25rem;
  background: linear-gradient(180deg, rgba(10, 10, 42, 0.99) 0%, rgba(5, 10, 30, 1) 100%);
  border-left: 1px solid rgba(77, 171, 247, 0.18);
  box-shadow: -20px 0 40px rgba(2, 8, 28, 0.34);
  transform: translateX(100%);
  transition: transform 0.3s ease-in-out;
  will-change: transform;
}

.mobile-menu.is-open .mobile-menu__panel,
.mobile-menu.is-open .mobile-menu-content {
  transform: translateX(0);
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.mobile-menu__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}

.mobile-menu__brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  padding: 0.28rem;
  border-radius: 16px;
  flex-shrink: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.14), transparent 48%),
    linear-gradient(180deg, rgba(16, 22, 58, 0.98) 0%, rgba(8, 12, 36, 0.98) 100%);
  border: 1px solid rgba(201, 162, 77, 0.18);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 10px 24px rgba(2, 8, 28, 0.22);
}

.mobile-menu__brand-mark {
  display: block;
  width: 100%;
  height: 100%;
  flex-shrink: 0;
}

.menu-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(77, 171, 247, 0.2);
  background: rgba(9, 16, 46, 0.92);
  color: var(--color-heading, #FFFFFF);
  transition: transform 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
}

.menu-close:hover {
  transform: translateY(-1px);
  border-color: rgba(77, 171, 247, 0.45);
  background: rgba(12, 22, 60, 0.98);
}

.mobile-menu__links {
  display: grid;
  gap: 0.55rem;
}

.mobile-menu__link {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.95rem 1rem;
  border-radius: 14px;
  color: var(--color-body, #B0B8D0);
  text-decoration: none;
  border: 1px solid rgba(77, 171, 247, 0.08);
  background: rgba(10, 16, 40, 0.7);
  transition: color 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.mobile-menu__link:hover,
.mobile-menu__link.is-active {
  color: var(--color-heading, #FFFFFF);
  background: rgba(42, 120, 204, 0.12);
  border-color: rgba(77, 171, 247, 0.28);
  transform: translateX(-2px);
}

.reveal-on-scroll {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.45s ease, transform 0.45s ease;
  will-change: opacity, transform;
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (hover: hover) and (pointer: fine) {
  .btn:hover,
  .download-btn:hover,
  .submit-btn:hover,
  .project-preview-card:hover,
  .project-card:hover,
  .floating-card:hover,
  .contact-card:hover,
  .resume-card:hover,
  .tech-stack__column:hover {
    transform: translateY(-5px);
  }
}

@media (min-width: 1920px) {
  .container,
  .max-w-6xl {
    max-width: 1400px;
  }
}

@media (min-width: 1025px) {
  .main-header .menu-toggle {
    display: none !important;
  }

  .main-header .nav__links-wrapper {
    display: block !important;
  }
}

@media (max-width: 1024px) {
  .main-header .nav__links-wrapper,
  .main-header .nav__links,
  .main-header nav.hidden.md\:flex,
  .main-header .md\:flex.items-center.space-x-8,
  .main-header nav[class*="space-x-8"] {
    display: none !important;
  }

  .main-header .menu-toggle {
    display: inline-flex !important;
  }

  .main-header .site-brand {
    max-width: calc(100% - 68px);
  }
}

@media (max-width: 767px) {
  :root {
    --enh-header-height: var(--enh-header-height-mobile);
  }

  body {
    padding-top: var(--enh-header-height-mobile) !important;
  }

  .main-header {
    min-height: var(--enh-header-height-mobile) !important;
  }

  .main-header .site-nav__inner {
    min-height: var(--enh-header-height-mobile) !important;
    padding: 0 1rem !important;
  }

  .site-brand__mark {
    width: 3rem;
    height: 3rem;
    border-radius: 16px;
  }

  .site-brand__name {
    font-size: 1rem;
  }

  .site-brand__role {
    font-size: 0.63rem;
    letter-spacing: 0.14em;
  }

  .site-brand__mark {
    width: 2.4rem;
  }

  .site-brand__name {
    font-size: 1.34rem;
  }

  .hero,
  .hero-section {
    min-height: auto;
  }

  .hero__content,
  .hero .container,
  .hero__grid,
  .hero-grid {
    grid-template-columns: 1fr !important;
  }

  .hero__image-container,
  .hero__image,
  .profile-image {
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
  }

  .hero__stats,
  .stats-grid {
    grid-template-columns: 1fr !important;
  }

  .hero__buttons,
  .cta-group {
    display: grid !important;
    grid-template-columns: 1fr !important;
    width: 100%;
  }

  .hero__buttons .btn,
  .cta-group .btn {
    width: 100%;
    justify-content: center;
  }

  .tech-stack__grid,
  .project-grid,
  .skills-grid,
  .grid.md\:grid-cols-2,
  .grid.md\:grid-cols-3 {
    grid-template-columns: 1fr !important;
  }

  footer .space-x-8 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
  }
}