/* ── Layout: Navigation, Header, Footer & Quick Nav ─────── */

/* ── Navigation ───────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: auto 1fr auto;
  column-gap: 1.5rem;
  align-items: center;
  padding: max(1.25rem, env(safe-area-inset-top, 1.25rem)) max(2.5rem, env(safe-area-inset-right, 2.5rem)) 1.25rem max(3rem, env(safe-area-inset-left, 3rem));
  border-bottom: 1px solid transparent;
  transition:
    border-color 0.3s,
    background 0.3s,
    -webkit-backdrop-filter 0.3s,
    backdrop-filter 0.3s;
}

nav.scrolled {
  border-color: var(--line);
  background: var(--nav-scrolled-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  box-shadow: inset 0 -1px 0 0 var(--line), 0 4px 20px rgba(0, 0, 0, 0.15);
}

.nav-logo {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--heading);
  text-decoration: none;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  justify-content: flex-start;
  margin-left: 3rem;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
  padding: 0.6rem 0.5rem;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  justify-content: flex-end;
}

.nav-cta {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--accent-a80);
  padding: 0.5rem 1.2rem;
  border-radius: 2px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 10px var(--accent-a35);
  transition:
    background 0.25s,
    color 0.25s,
    box-shadow 0.3s;
}

@media (hover: hover) and (min-width: 769px) {
  .nav-cta {
    animation: nav-cta-flicker 3.2s ease-in-out infinite;
  }
}

.nav-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg,
      transparent 35%,
      rgba(255, 255, 255, 0.13) 50%,
      transparent 65%);
  transform: translateX(-100%);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-cta:hover {
  background: var(--accent);
  color: var(--bg);
  box-shadow: 0 0 14px var(--accent-a35);
  animation-play-state: paused;
}

.nav-cta.active {
  background: var(--accent);
  color: var(--bg);
  animation: none;
  box-shadow: none;
}

@keyframes nav-cta-flicker {

  0%,
  76%,
  100% {
    border-color: var(--accent-a80);
    box-shadow: 0 0 10px var(--accent-a35);
  }

  84% {
    border-color: #f0fff4;
    box-shadow: 0 0 18px 2px var(--glow-green-a50), 0 0 4px 1px rgba(255, 255, 255, .7);
  }

  92% {
    border-color: var(--glow-green);
    box-shadow: 0 0 10px 1px var(--glow-green-a35);
  }
}

.nav-cta.active::before {
  transform: translateX(100%);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  flex-shrink: 0;
  cursor: pointer;
  transition:
    border-color 0.25s,
    color 0.25s;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.theme-toggle svg {
  width: 15px;
  height: 15px;
  pointer-events: none;
}

.icon-sun {
  display: none;
}

.icon-moon {
  display: block;
}

html[data-theme="light"] .icon-sun {
  display: block;
}

html[data-theme="light"] .icon-moon {
  display: none;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  height: 1px;
  background: var(--muted);
  transition:
    transform 0.3s,
    opacity 0.3s,
    background 0.2s;
  transform-origin: center;
}

.nav-hamburger:hover span {
  background: var(--accent);
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-drawer {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 99;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2.2rem;
  padding-top: max(2.5rem, env(safe-area-inset-top, 2.5rem));
  padding-bottom: max(2.5rem, env(safe-area-inset-bottom, 2.5rem));
  overscroll-behavior: contain;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.nav-drawer.open {
  opacity: 1;
  pointer-events: all;
}

.nav-drawer a {
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  padding: 1rem 2rem;
  transition: color 0.2s;
}

.nav-drawer a:hover {
  color: var(--accent);
}



/* ── Footer ───────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--line);
  background: var(--bg2);
  margin-top: 6rem;
  width: 100%;
  box-sizing: border-box;
  /* extra right padding so fixed bottom widgets and the centered "goto" control
      do not overlap the social icons on the right. Reduced on small screens. */
  padding: 2.5rem max(6rem, env(safe-area-inset-right, 6rem)) max(2rem, env(safe-area-inset-bottom, 2rem)) max(6rem, env(safe-area-inset-left, 6rem));
  display: flex;
  flex-direction: column;
  gap: 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-bottom: 2rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.footer-logo {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--heading);
  line-height: 1;
}

.footer-logo span {
  color: var(--accent);
}

.footer-tagline {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}

.footer-socials {
  display: flex;
  gap: 0.25rem;
  align-items: center;
  /* Keeps the row clear of the fixed back-top / scroll-pct widgets,
     which share this same bottom-right corner. */
  padding-right: 1rem;
}

/* Reduce the extra right padding on small viewports so footer remains readable */
@media (max-width: 720px) {
  footer {
    padding-right: 3rem;
  }
}

.footer-socials a {
  color: var(--muted);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  transition:
    color 0.2s,
    background 0.2s,
    transform 0.2s;
}

.footer-socials a:hover {
  color: var(--accent);
  background: var(--accent-a07);
  transform: translateY(-2px);
}

.footer-socials a svg {
  width: 15px;
  height: 15px;
  pointer-events: none;
}

.footer-rule {
  width: 100%;
  height: 1px;
  background: var(--line);
}

.footer-copy {
  padding-top: 1.25rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-align: center;
}

.footer-copy a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.footer-copy a:hover,
.footer-copy a:focus-visible {
  color: var(--text);
  outline: none;
}



/* ============================================================
   SHARED COMPONENTS
   Rules below are used by 2+ pages and were previously duplicated
   in each page's inline <style> block. Page-specific overrides
   still live inline (loaded after this file, so they win on
   equal specificity — verified safe across all 6 pages).
   ============================================================ */

/* ── Page header (about, projects, contact, achievements, experience) ── */
#page-header {
  padding: calc(var(--nav-h) + 3rem) 3rem 2rem;
}

.page-eyebrow {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.page-title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 300;
  color: var(--heading);
  line-height: 1.1;
}

.page-title em {
  font-style: italic;
  color: var(--accent);
}

.page-sub {
  margin-top: 1rem;
  font-size: 0.95rem;
  color: var(--text);
  max-width: 560px;
  line-height: 1.75;
}

@media (max-width: 1100px) {
  #page-header {
    padding: calc(var(--nav-h) + 2.5rem) 2rem 1.5rem;
  }
}

@media (max-width: 900px) {
  #page-header {
    padding: calc(var(--nav-h) + 2rem) 1.5rem 1.5rem;
  }
}



/* ── Quick-nav cards (Explore section — index, about, projects, contact, achievements, experience) ── */
#quick-nav {
  background: transparent;
  position: relative;
  padding: 6rem 3rem;
}

#quick-nav::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: rgba(15, 14, 12, .55);
  pointer-events: none;
}

html[data-theme="light"] #quick-nav::before {
  background: rgba(245, 242, 236, .7);
}

#quick-nav>* {
  position: relative;
  z-index: 1;
}

.quick-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.1rem;
}

.quick-nav-card {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  text-decoration: none;
  position: relative;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}

.quick-nav-card:hover {
  border-color: var(--glow-green-a50);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .3), 0 0 16px var(--glow-green-a35);
}

.quick-nav-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.quick-nav-card--current {
  border-color: var(--glow-green-a50);
  cursor: default;
}

.quick-nav-card--current:hover {
  transform: none;
}

.quick-nav-card--current .quick-nav-cta {
  color: var(--muted);
}

.quick-nav-card--current:hover .quick-nav-cta {
  gap: 0.4rem;
}

.quick-nav-card--current .card-arrow {
  display: none;
}

.quick-nav-index {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  opacity: .8;
}

.quick-nav-title {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--heading);
}

.quick-nav-desc {
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text);
  flex: 1;
}

.quick-nav-cta {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent2);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap .25s;
}

.quick-nav-card:hover .quick-nav-cta {
  gap: 0.65rem;
}

.card-arrow {
  display: inline-block;
  margin-left: 0.45em;
  color: var(--glow-green);
  text-shadow: 0 0 8px var(--glow-green-a50);
  transition: opacity .25s, text-shadow .25s, transform .25s;
}

.card-arrow.dist-1 {
  opacity: 1;
  transform: scale(1.15);
}

.card-arrow.dist-2 {
  opacity: .8;
  transform: scale(1.05);
}

.card-arrow.dist-3 {
  opacity: .6;
  transform: scale(1);
}

.card-arrow.dist-4 {
  opacity: .45;
  transform: scale(.92);
}

.card-arrow.dist-5 {
  opacity: .3;
  transform: scale(.85);
}

.quick-nav-card:hover .card-arrow {
  opacity: 1;
  transform: scale(1);
  text-shadow: 0 0 16px var(--glow-green-a50), 0 0 4px var(--glow-green);
}

@media (max-width: 1100px) {
  #quick-nav {
    padding: 4rem 2rem;
  }
}

@media (max-width: 900px) {
  nav {
    padding: max(0.9rem, env(safe-area-inset-top, 0.9rem)) max(1.25rem, env(safe-area-inset-right, 1.25rem)) 0.9rem max(1.25rem, env(safe-area-inset-left, 1.25rem));
    display: flex;
    justify-content: space-between;
    align-items: center;
    grid-template-columns: none;
  }

  .nav-links {
    display: none !important;
  }

  .nav-hamburger {
    display: flex !important;
  }

  .nav-right {
    display: flex;
    align-items: center;
    gap: 0.4rem;
  }

  .nav-cta {
    display: none !important;
  }

  .nav-drawer {
    display: flex;
  }

  footer {
    padding: 2.5rem 1.25rem 2rem;
    margin-top: 4rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    padding-bottom: 1.25rem;
  }

  .footer-socials {
    flex-wrap: wrap;
    padding-right: 0;
    gap: 0.35rem;
  }

  #quick-nav {
    padding: 3rem 1.25rem;
  }

  .quick-nav-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .quick-nav-card {
    padding: 1.5rem 1.25rem;
    display: flex !important;
  }
}

@media (max-width: 480px) {
  nav {
    padding: max(0.75rem, env(safe-area-inset-top, 0.75rem)) max(0.85rem, env(safe-area-inset-right, 0.85rem)) 0.75rem max(0.85rem, env(safe-area-inset-left, 0.85rem));
  }

  .nav-logo {
    font-size: clamp(0.95rem, 4.5vw, 1.05rem);
    white-space: nowrap;
  }

  .nav-right {
    gap: 0.3rem;
  }

  .theme-toggle,
  .nav-search-btn,
  .nav-access-btn,
  .color-picker-toggle,
  .nav-hamburger {
    width: 34px;
    height: 34px;
    min-width: 34px;
    min-height: 34px;
    padding: 0;
  }

  #quick-nav {
    padding: 2.25rem 0.85rem;
  }

  .quick-nav-card {
    padding: 1.25rem 1rem;
    gap: 0.75rem;
  }

  .quick-nav-title {
    font-size: 1.15rem;
  }

  .quick-nav-desc {
    font-size: 0.82rem;
  }

  footer {
    padding: 2rem 0.85rem 1.75rem;
    margin-top: 3rem;
  }

  .footer-logo {
    font-size: 1rem;
  }

  .footer-tagline {
    font-size: 0.55rem;
  }

  .footer-copy {
    font-size: 0.62rem;
    line-height: 1.6;
    padding-top: 1rem;
  }
}

@media (max-width: 340px) {
  nav {
    padding: max(0.6rem, env(safe-area-inset-top, 0.6rem)) max(0.5rem, env(safe-area-inset-right, 0.5rem)) 0.6rem max(0.5rem, env(safe-area-inset-left, 0.5rem));
  }

  .nav-logo {
    font-size: 0.88rem;
  }

  .nav-right {
    gap: 0.2rem;
  }

  .theme-toggle,
  .nav-search-btn,
  .nav-access-btn,
  .color-picker-toggle,
  .nav-hamburger {
    width: 30px;
    height: 30px;
    min-width: 30px;
    min-height: 30px;
  }

  #quick-nav {
    padding: 1.75rem 0.65rem;
  }

  .quick-nav-card {
    padding: 1rem 0.75rem;
  }

  footer {
    padding: 1.75rem 0.65rem 1.5rem;
  }
}