/* ═══════════════════════════════════════════════
   achdhri.net — Shared Stylesheet v3
   Adnan Chaudhri — Technologist & Senior Researcher
   ═══════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

@font-face {
  font-family: 'Departure Mono';
  src: url('departuremono/DepartureMono-Regular.woff2') format('woff2'),
       url('departuremono/DepartureMono-Regular.woff') format('woff');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Dark theme (inverted) */
  --bg:          #0b0b0b;
  --bg-warm:     #121212;
  --bg-card:     #161616;
  --ink:         #f5f4f0;
  --ink-mid:     #c9c8c2;
  --ink-light:   #9e9d97;
  --rule:        #2a2a2a;
  --rule-strong: #f5f4f0;
  --font:        'DM Sans', sans-serif;
  --mono:        'DM Mono', monospace;
  --font-eyebrow: 'Departure Mono', var(--mono);
  --gutter:      48px;
  --max:         1320px;
  --pill:        999px;
  --card:        16px;
}

html { font-size: 16px; scroll-behavior: smooth; }
body { background: var(--bg); color: var(--ink); font-family: var(--font); font-weight: 300; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }

/* Subtle inline links (matches Publications “Dawn” link styling) */
.subtle-link {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: rgba(245, 244, 240, 0.35);
  text-underline-offset: 2px;
  transition: color 0.15s, text-decoration-color 0.15s;
}
.subtle-link:hover {
  color: var(--ink-mid);
  text-decoration-color: rgba(201, 200, 194, 0.55);
}
.subtle-link:visited { color: var(--ink-mid); }

/* ── SCREEN READER ONLY ── */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ── SKIP LINK ── */
.skip-link {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--ink);
  color: var(--bg);
  text-decoration: none;
  font-size: 12px;
  font-weight: 400;
  transform: translateY(-140%);
  transition: transform 0.15s ease;
}
.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--ink);
  outline-offset: 3px;
}

/* ── NAV ── */
nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: var(--bg); border-bottom: 1px solid var(--rule); }
.nav-inner { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); height: 52px; display: flex; align-items: center; justify-content: space-between; gap: 12px; position: relative; }
.nav-mark { font-size: 13px; font-weight: 400; color: var(--ink); text-decoration: none; display: flex; align-items: center; gap: 5px; flex-shrink: 0; min-width: 0; }
.nav-mark .sep  { color: var(--ink-light); font-weight: 300; }
.nav-dock { display: flex; align-items: center; gap: 6px; }
.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 16px;
}
.nav-links a {
  font-size: 12.5px;
  font-weight: 300;
  line-height: 1.2;
  color: var(--ink-mid);
  text-decoration: none;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  text-decoration-color: transparent;
  padding: 6px 2px;
  border: none;
  border-radius: 0;
  background: transparent;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.15s, text-decoration-color 0.15s;
}
.nav-links a:hover,
.nav-links a:active { color: var(--ink); text-decoration: underline; text-decoration-color: currentColor; }
.nav-links a.active { color: var(--ink); font-weight: 400; text-decoration: underline; text-decoration-color: var(--ink); }
.nav-links a:focus-visible { outline: none; color: var(--ink); text-decoration: underline; text-decoration-color: var(--ink); }

/* Mobile menu toggle (hidden on wide viewports) */
.nav-toggle {
  display: none;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0 -6px 0 0;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  z-index: 20;
  position: relative;
}
.nav-toggle:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
.nav-toggle-box { width: 22px; height: 14px; position: relative; display: block; }
.nav-toggle-bar {
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle-bar:nth-child(1) { top: 0; }
.nav-toggle-bar:nth-child(2) { top: 6.25px; }
.nav-toggle-bar:nth-child(3) { bottom: 0; }
body.nav-menu-open .nav-toggle-bar:nth-child(1) { transform: translateY(6.25px) rotate(45deg); }
body.nav-menu-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
body.nav-menu-open .nav-toggle-bar:nth-child(3) { transform: translateY(-6.25px) rotate(-45deg); }
@media (prefers-reduced-motion: reduce) {
  .nav-toggle-bar { transition: none; }
}

/* ── PILLS ── */
.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 400; border-radius: var(--pill); padding: 8px 18px; border: 1px solid var(--rule-strong); color: var(--ink); background: transparent; cursor: pointer; text-decoration: none; transition: all 0.15s; font-family: var(--font); white-space: nowrap; }
.pill:hover           { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pill-filled          { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pill-filled:hover    { background: var(--ink-mid); border-color: var(--ink-mid); color: var(--bg); }
.pill-ghost           { border-color: var(--rule); color: var(--ink-mid); }
.pill-ghost:hover     { border-color: var(--ink); color: var(--ink); background: var(--bg-card); }
.pill:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}
.pill-sm              { font-size: 11.5px; padding: 5px 13px; }
.pill-inv             { border-color: var(--rule); color: var(--ink); background: transparent; }
.pill-inv:hover       { background: var(--bg-card); border-color: var(--ink); color: var(--ink); }
.pill-inv-filled      { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pill-inv-filled:hover{ background: var(--ink-mid); border-color: var(--ink-mid); color: var(--bg); }
.pill[disabled],
.pill-disabled,
.pill[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}
.pill[disabled]:hover,
.pill-disabled:hover,
.pill[aria-disabled="true"]:hover {
  background: transparent;
  color: inherit;
  border-color: inherit;
}

/* ── PAGE WRAP ── */
.page-wrap { padding-top: 52px; }

/* ── SECTION HEADER ── */
.section-header-grid { max-width: var(--max); margin: 0 auto; padding: 56px var(--gutter) 40px; border-bottom: 1px solid var(--rule-strong); display: grid; grid-template-columns: repeat(12, 1fr); gap: 0 var(--gutter); align-items: end; }
.section-title { font-size: clamp(32px, 5vw, 64px); font-weight: 300; letter-spacing: -0.02em; line-height: 1.0; color: var(--ink); grid-column: 1 / -1; }

/* Eyebrows (uppercase micro-labels) */
.section-eyebrow { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-light); margin-bottom: 12px; }
.hero-label { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.1em; color: var(--ink-light); text-transform: uppercase; margin-bottom: 8px; }
.areas-label { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-light); padding: 20px 0 18px; border-top: 1px solid var(--rule); }
.snippet-label { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-light); padding-top: 3px; }
.publisher-label { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-light); margin-bottom: 20px; text-align: center; }

/* Home: “Published / Collaborated With” logo grid */
.publisher-strip {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px var(--gutter) 40px;
  border-top: 1px solid var(--rule);
}
.publisher-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(152px, 1fr));
  gap: 12px;
  align-items: stretch;
}
.publisher-item {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  padding: 14px 12px 12px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: var(--card);
}
.publisher-logo-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 10px;
  border-radius: 10px;
  background: #f5f4f0;
  min-height: 52px;
}
.publisher-logo-wrap a.org-logo-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 100%;
  text-decoration: none;
  color: inherit;
  border-radius: 8px;
  cursor: pointer;
}
.publisher-logo-wrap a.org-logo-link:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.publisher-logo-wrap img {
  display: block;
  max-width: 100%;
  width: auto;
  height: auto;
  max-height: 30px;
  object-fit: contain;
}
.publisher-item--mark .publisher-logo-wrap img {
  max-height: 26px;
}
.publisher-item--square .publisher-logo-wrap img {
  max-height: 40px;
}
.publisher-item-name {
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-mid);
  line-height: 1.35;
  text-align: center;
}

/* Sidebar rows with org logos (About “Published With”, Research “Collaborators & Publishers”) */
.aside-row--org {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}
.aside-row--org:first-of-type {
  border-top: 1px solid var(--rule);
}
.aside-org-logo {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: #f5f4f0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}
.aside-org-logo a.org-logo-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
  border-radius: 8px;
  cursor: pointer;
}
.aside-org-logo a.org-logo-link:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.aside-org-logo img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}
.aside-org-body {
  flex: 1;
  min-width: 0;
  font-size: 12px;
  color: var(--ink-mid);
  line-height: 1.45;
}
.aside-org-body strong {
  display: block;
  font-weight: 400;
  color: var(--ink);
  font-size: 12px;
  margin-bottom: 4px;
}
.aside-org-loc {
  display: block;
  font-size: 11.5px;
  font-weight: 300;
  color: var(--ink-mid);
}
.aside-label { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-light); margin-bottom: 16px; }
.contact-method-label { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-light); }
.note-eyebrow { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-light); margin-bottom: 10px; }
.sidebar-label { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-light); margin-bottom: 16px; }
.stat-label { font-family: var(--font-eyebrow); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-light); margin-top: 5px; }
.method-num { font-family: var(--font-eyebrow); font-size: 12px; color: var(--ink-light); letter-spacing: 0.06em; margin-bottom: 10px; }
.pub-role {
  display: inline-block;
  font-family: var(--font-eyebrow);
  font-size: 12px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--ink);
  padding: 3px 10px;
  border-radius: var(--pill);
  margin-bottom: 8px;
}

/* ── TAGS ── */
.pub-tag { font-size: 11px; font-weight: 300; color: var(--ink-mid); border: 1px solid var(--rule); padding: 3px 10px; border-radius: var(--pill); }
.pub-tag.hl { background: var(--ink); color: var(--bg); border-color: var(--ink); font-weight: 400; }
.skill-chip { font-size: 12px; font-weight: 300; color: var(--ink-mid); background: var(--bg-card); border-radius: var(--pill); padding: 5px 14px; border: 1px solid var(--rule); }

/* ── FOOTER ── */
footer { border-top: 1px solid var(--rule); padding: 24px var(--gutter); max-width: var(--max); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.fn  { font-family: var(--mono); font-size: 11px; color: var(--ink-light); letter-spacing: 0.04em; }
.footer-links { display: flex; gap: 20px; align-items: center; }
.footer-links a { font-size: 11px; color: var(--ink-light); text-decoration: none; transition: color 0.15s; }
.footer-links a:hover { color: var(--ink); }
.footer-links a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
  border-radius: 8px;
  color: var(--ink);
}

/* Local “card link” focus ring (About contact methods) */
.contact-method:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
  border-radius: var(--card);
}

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  :root { --gutter: 24px; }
  .section-header-grid { grid-template-columns: 1fr; }
  .section-title { grid-column: 1/-1; margin-bottom: 24px; }

  body.nav-menu-open { overflow: hidden; }
  body.nav-menu-open nav { z-index: 400; }

  .nav-toggle { display: flex; }
  /* Keep identity + menu control above the fullscreen sheet */
  .nav-mark { position: relative; z-index: 15; }

  .nav-dock {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100dvh;
    min-height: 100%;
    max-width: none;
    margin: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    padding: max(52px, env(safe-area-inset-top, 0px)) max(24px, env(safe-area-inset-right, 0px)) max(24px, env(safe-area-inset-bottom, 0px)) max(24px, env(safe-area-inset-left, 0px));
    background: var(--bg);
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, visibility 0.22s ease;
  }
  body.nav-menu-open .nav-dock {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-dock .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 6px;
  }
  .nav-dock .nav-links a {
    font-size: clamp(1.15rem, 4.5vw, 1.35rem);
    line-height: 1.2;
    padding: 12px 8px;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0;
    background: transparent;
  }
}
@media (prefers-reduced-motion: reduce) {
  @media (max-width: 960px) {
    .nav-dock { transition: none; }
  }
}
@media (max-width: 600px) {
  footer { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}