/* ==========================================================================
   Md Farukuzzaman Faruk — Research Portfolio
   Design system: Navy & Slate + muted Teal accent
   ========================================================================== */

:root {
  --bg: #F8FAFC;
  --bg-alt: #EFF3F8;
  --surface: #FFFFFF;
  --surface-border: #E2E8F0;

  --text: #0F172A;
  --text-muted: #475569;
  --text-faint: #5B6B84; /* WCAG AA: 5.17:1 on --bg (was #94A3B8 at 2.45:1, failing) */

  --navy: #0B1F3A;
  --navy-light: #16305A;
  --navy-contrast: #F8FAFC;

  --accent: #0D9488;
  --accent-dark: #0B7A6F;
  --accent-soft: #CCFBF1;
  --accent-contrast: #04302B;
  --accent-on-navy: #2DD4BF; /* for accent-colored text/icons on navy surfaces (hero, footer): 7-10:1 vs. plain --accent's 4.4:1 */

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 6px 20px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.14);

  --font-heading: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --container-w: 1120px;
  --nav-h: 72px;

  --transition: 180ms ease;
}

[data-theme="dark"] {
  --bg: #0B1220;
  --bg-alt: #0F1A2E;
  --surface: #101B30;
  --surface-border: #223252;

  --text: #E7ECF5;
  --text-muted: #9FB0C9;
  --text-faint: #8DA0BC; /* WCAG AA: 7.03:1 on dark --bg (was #64758C at 3.98:1, failing) */

  --navy: #060D1B;
  --navy-light: #0F1D38;
  --navy-contrast: #E7ECF5;

  --accent: #2DD4BF;
  --accent-dark: #14B8A6;
  --accent-soft: #0E3B36;
  --accent-contrast: #E7ECF5;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 45px rgba(0, 0, 0, 0.55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0B1220;
    --bg-alt: #0F1A2E;
    --surface: #101B30;
    --surface-border: #223252;

    --text: #E7ECF5;
    --text-muted: #9FB0C9;
    --text-faint: #8DA0BC; /* WCAG AA: 7.03:1 on dark --bg (was #64758C at 3.98:1, failing) */

    --navy: #060D1B;
    --navy-light: #0F1D38;
    --navy-contrast: #E7ECF5;

    --accent: #2DD4BF;
    --accent-dark: #14B8A6;
    --accent-soft: #0E3B36;
    --accent-contrast: #E7ECF5;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 45px rgba(0, 0, 0, 0.55);
  }
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); overflow-x: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden; /* the closed mobile nav-links panel sits off-canvas via
    translateX(100%), but as a transformed position:fixed element it still
    contributes to the document's scrollable width in Chromium; this is the
    standard guard against that (and any other stray off-canvas element). */
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 600; margin: 0; color: var(--text); }
p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

section { padding: 96px 0; }
section + section { border-top: 1px solid var(--surface-border); }

.section-head { max-width: 680px; margin: 0 0 48px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent-dark); font-weight: 600; margin-bottom: 12px;
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--accent); display: inline-block; }
.section-head h2 { font-size: clamp(1.6rem, 2.4vw, 2.1rem); letter-spacing: -0.01em; }
.section-head p { margin-top: 14px; color: var(--text-muted); font-size: 1.02rem; }

/* ---------- Justified prose ----------
   Narrative/descriptive paragraphs read better justified (even edges on both
   sides); hyphens:auto softens the inter-word gaps justify can otherwise
   create. Deliberately NOT applied to citation-style text (publication
   title/authors/venue) or bulleted lists, where ragged-right is the standard,
   more legible convention. */
.about-lede,
.hero-role,
.hero-tagline,
.section-head p,
.about-supervisor p,
.footer-brand p,
.news-item p,
.timeline-detail,
.media-title,
.media-date {
  text-align: justify;
  text-align-last: left;
  hyphens: auto;
}

/* ---------- Reveal-on-scroll ----------
   Progressive enhancement: elements are fully visible by default (works with
   no JS / if IntersectionObserver never fires). JS opts individual elements
   into the hidden-then-fade-in treatment by adding .reveal-pending itself. */
.reveal-pending { opacity: 0; transform: translateY(16px); transition: opacity 560ms ease, transform 560ms ease; }
.reveal-pending.visible { opacity: 1; transform: translateY(0); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.95rem; border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #052E29; }
.btn-primary:hover { background: var(--accent-dark); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--navy-contrast); border-color: rgba(255,255,255,0.35); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost { background: var(--surface); color: var(--text); border-color: var(--surface-border); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-dark); }
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }

/* ---------- Nav ----------
   Editorial/academic treatment: a small serif crest + nowrap wordmark,
   and uppercase, tracked, underline-on-hover links rather than filled
   pill buttons (which read more "app" than "faculty page"). */
.site-nav {
  position: fixed; inset: 0 0 auto 0; height: var(--nav-h); z-index: 100;
  background: rgba(9, 25, 47, 0.96); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: background var(--transition);
}
.site-nav .container { max-width: 1360px; height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 14px; }

.brand { display: flex; align-items: center; gap: 10px; color: var(--navy-contrast); flex-shrink: 0; }
.brand-crest {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  border: 1.5px solid rgba(45,212,191,0.55); background: rgba(45,212,191,0.08);
  color: var(--accent-on-navy); display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-weight: 700; font-size: 0.82rem; letter-spacing: 0.01em;
}
.brand-name {
  font-family: var(--font-heading); font-weight: 600; font-size: 0.97rem;
  letter-spacing: 0; white-space: nowrap; line-height: 1;
}

.nav-links { display: flex; align-items: center; gap: 0; flex-wrap: nowrap; }
.nav-links a {
  position: relative; display: inline-block; padding: 10px 9px;
  font-family: var(--font-body); font-size: 0.71rem; font-weight: 600;
  letter-spacing: 0.03em; text-transform: uppercase; white-space: nowrap;
  color: rgba(226,232,240,0.6); transition: color var(--transition);
}
.nav-links a::after {
  content: ""; position: absolute; left: 9px; right: 9px; bottom: 6px; height: 2px;
  background: var(--accent-on-navy); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform 220ms ease;
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after { transform: scaleX(1); }
.nav-links a.active { color: #fff; }
.nav-links a.active::after { transform: scaleX(1); }

.nav-cv-link {
  display: flex; align-items: center; gap: 5px; margin-left: 8px;
  padding: 6px 12px !important; border-radius: 999px;
  border: 1px solid rgba(45,212,191,0.45); color: var(--accent-on-navy) !important;
  font-size: 0.68rem !important;
}
.nav-cv-link::after { content: none; }
.nav-cv-link:hover { background: rgba(13,148,136,0.16) !important; border-color: var(--accent-on-navy); }

@media (max-width: 1130px) {
  .nav-cv-link { border-color: rgba(45,212,191,0.35); margin-left: 0; margin-top: 8px; justify-content: center; }
}
.nav-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.theme-toggle {
  width: 44px; height: 44px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.2);
  background: transparent; color: var(--navy-contrast); display: flex; align-items: center; justify-content: center;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.2);
  background: transparent; color: var(--navy-contrast); align-items: center; justify-content: center;
}

@media (max-width: 1130px) {
  /* backdrop-filter on .site-nav would otherwise become the containing block
     for #navLinks (position:fixed), collapsing its height to the nav bar's
     own 72px instead of the full viewport below it. Disable it here. */
  .site-nav { backdrop-filter: none; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
    background: var(--navy); flex-direction: column; align-items: stretch; gap: 2px;
    padding: 18px 24px; transform: translateX(100%); transition: transform 260ms ease;
    overflow-y: auto;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a {
    padding: 14px 14px; font-size: 0.92rem; letter-spacing: 0.03em; border-radius: 8px;
  }
  .nav-links a::after { content: none; }
  .nav-links a:hover { background: rgba(255,255,255,0.06); }
  .nav-links a.active { background: rgba(13,148,136,0.22); }
  .nav-toggle { display: flex; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; padding: calc(var(--nav-h) + 88px) 0 96px;
  background:
    radial-gradient(900px 480px at 82% -10%, rgba(13,148,136,0.22), transparent 60%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-light) 100%);
  color: var(--navy-contrast); overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: 0.5; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), transparent 75%);
}
.hero .container { position: relative; display: grid; grid-template-columns: 1.35fr 0.9fr; gap: 56px; align-items: center; }
.hero-eyebrow {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent-on-navy); margin-bottom: 18px; display: flex; align-items: center; gap: 10px;
}
.hero-eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-on-navy); box-shadow: 0 0 0 4px rgba(13,148,136,0.25); }
.hero h1 { font-size: clamp(2.1rem, 4.2vw, 3.2rem); line-height: 1.12; letter-spacing: -0.015em; color: #fff; }
.hero h1 .accent-word { color: var(--accent-on-navy); }
.hero-role { margin-top: 16px; font-size: 1.12rem; color: rgba(248,250,252,0.82); max-width: 46ch; }
.hero-tagline { margin-top: 18px; font-size: 1.02rem; color: rgba(248,250,252,0.66); max-width: 54ch; }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-photo-wrap {
  position: relative; justify-self: center; width: min(320px, 100%);
}
.hero-photo-frame {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid rgba(255,255,255,0.14); box-shadow: var(--shadow-lg);
  aspect-ratio: 1 / 1; background: var(--navy-light);
}
.hero-photo-frame img { width: 100%; height: 100%; object-fit: cover; }
.hero-photo-badge {
  position: absolute; left: -18px; bottom: -18px; background: var(--surface); color: var(--text);
  border-radius: var(--radius-md); padding: 12px 16px; box-shadow: var(--shadow-md);
  display: flex; align-items: center; gap: 10px; font-size: 0.85rem; font-weight: 600;
  border: 1px solid var(--surface-border);
}
.hero-photo-badge img { width: 26px; height: auto; }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-eyebrow, .hero-actions { justify-content: center; }
  .hero-role, .hero-tagline { margin-left: auto; margin-right: auto; }
  .hero-photo-wrap { order: -1; }
}

/* ---------- Stat tiles ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 44px; }
.stat-tile {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md); padding: 20px; text-align: center;
}
.stat-tile .num { font-family: var(--font-heading); font-size: 1.9rem; color: #fff; }
.stat-tile .label { margin-top: 4px; font-size: 0.82rem; color: rgba(248,250,252,0.62); }
@media (max-width: 700px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about-lede { font-size: 1.18rem; line-height: 1.7; color: var(--text); }
.about-lede strong { color: var(--accent-dark); }
.about-supervisor {
  background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-md);
  padding: 22px; box-shadow: var(--shadow-sm);
}
.about-supervisor .label { font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent-dark); }
.about-supervisor h4 { margin-top: 8px; font-size: 1.05rem; }
.about-supervisor p { margin-top: 6px; color: var(--text-muted); font-size: 0.92rem; }
.about-supervisor a { color: var(--accent-dark); font-weight: 600; font-size: 0.88rem; margin-top: 10px; display: inline-block; }
@media (max-width: 800px) { .about-grid { grid-template-columns: 1fr; } }

/* ---------- Pills / research interests ---------- */
.pill-grid { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.pill {
  display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--surface-border); font-weight: 600; font-size: 0.92rem;
  box-shadow: var(--shadow-sm);
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }

/* ---------- Timeline (education / experience) ---------- */
.timeline { position: relative; margin-top: 8px; }
.timeline::before {
  content: ""; position: absolute; top: 6px; bottom: 6px; left: 9px; width: 2px;
  background: linear-gradient(var(--surface-border), var(--surface-border));
}
.timeline-item { position: relative; padding: 0 0 36px 40px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ""; position: absolute; left: 2px; top: 4px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--surface); border: 3px solid var(--accent);
}
.timeline-period {
  font-family: var(--font-mono); font-size: 0.82rem; color: var(--accent-dark); font-weight: 600; letter-spacing: 0.02em;
}
.timeline-item h3 { font-size: 1.1rem; margin-top: 4px; }
.timeline-org { color: var(--text-muted); font-size: 0.94rem; margin-top: 2px; }
.timeline-detail { margin-top: 8px; font-size: 0.92rem; color: var(--text-muted); }
.timeline-detail strong { color: var(--text); }
.timeline-detail a { color: var(--accent-dark); font-weight: 600; }
.timeline-detail a:hover { text-decoration: underline; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; gap: 48px; } }

/* ---------- Cards (generic) ---------- */
.card {
  background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm); transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow-md); }

/* ---------- Publications ---------- */
.pub-toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 32px 0 28px; }
.pub-search {
  flex: 1 1 260px; display: flex; align-items: center; gap: 10px; background: var(--surface);
  border: 1px solid var(--surface-border); border-radius: var(--radius-sm); padding: 10px 14px;
}
.pub-search input { border: 0; background: transparent; outline: none; width: 100%; color: var(--text); font-size: 0.95rem; }
.pub-search svg { flex-shrink: 0; color: var(--text-faint); }
.pub-select {
  border: 1px solid var(--surface-border); background: var(--surface); border-radius: var(--radius-sm);
  padding: 10px 14px; color: var(--text); font-size: 0.92rem;
}
.pub-chart-wrap {
  background: var(--surface); border: 1px solid var(--surface-border); border-radius: var(--radius-md);
  padding: 20px 20px 8px; margin-bottom: 32px; box-shadow: var(--shadow-sm);
}
.pub-list { display: flex; flex-direction: column; gap: 14px; }
.pub-item { padding: 20px 22px; }
.pub-item .pub-top { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; flex-wrap: wrap; }
.pub-year {
  font-family: var(--font-mono); font-weight: 700; color: var(--accent-dark); font-size: 0.95rem;
  flex-shrink: 0;
}
.pub-title { font-size: 1.02rem; font-weight: 600; margin-top: 6px; line-height: 1.45; }
.pub-authors { margin-top: 8px; font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; }
.pub-authors strong { color: var(--text); }
.pub-venue { margin-top: 8px; font-size: 0.87rem; color: var(--text-faint); font-style: italic; }
.pub-award {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; padding: 5px 12px;
  border-radius: 999px; background: var(--accent-soft); color: var(--accent-contrast);
  font-size: 0.78rem; font-weight: 700;
}
.pub-badge {
  display: inline-flex; align-items: center; padding: 4px 11px; border-radius: 999px;
  border: 1px solid var(--accent-dark); color: var(--accent-dark); font-size: 0.72rem;
  font-weight: 700; letter-spacing: 0.02em; flex-shrink: 0; white-space: nowrap;
}
.pub-empty { padding: 40px; text-align: center; color: var(--text-muted); }
.pub-more { display: flex; justify-content: center; margin-top: 24px; }

/* ---------- Media card (Awards / Gallery — shared component) ---------- */
.media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; margin-top: 8px; }
.media-card { overflow: hidden; cursor: pointer; }
.media-card .media-frame { aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-alt); position: relative; }
.media-card .media-frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 420ms ease; }
.media-card:hover .media-frame img { transform: scale(1.05); }
.media-card .media-frame.no-image { display: flex; align-items: center; justify-content: center; }
.media-card .media-frame.no-image svg { width: 40px; height: 40px; color: var(--text-faint); }
.media-body { padding: 16px 18px 18px; }
.media-org { font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--accent-dark); font-weight: 700; }
.media-title { margin-top: 6px; font-size: 0.98rem; font-weight: 600; line-height: 1.4; }
.media-date { margin-top: 6px; font-size: 0.82rem; color: var(--text-faint); }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(6, 12, 24, 0.88);
  display: none; align-items: center; justify-content: center; padding: 40px 20px;
}
.lightbox.open { display: flex; }
.lightbox figure { margin: 0; max-width: min(900px, 92vw); max-height: 88vh; }
.lightbox img { max-height: 76vh; width: auto; margin: 0 auto; border-radius: var(--radius-sm); box-shadow: var(--shadow-lg); }
.lightbox figcaption { color: #E7ECF5; text-align: center; margin-top: 16px; font-size: 0.92rem; }
.lightbox-close {
  position: absolute; top: 24px; right: 28px; width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.08); color: #fff; border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
}

/* ---------- Projects ---------- */
.project-list { display: flex; flex-direction: column; gap: 16px; }
.project-item { padding: 22px 24px; display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: start; }
.project-item h3 { font-size: 1.02rem; line-height: 1.4; }
.project-meta { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 0.86rem; color: var(--text-muted); }
.project-meta span strong { color: var(--text); }
.status-badge { padding: 5px 12px; border-radius: 999px; font-size: 0.76rem; font-weight: 700; white-space: nowrap; height: fit-content; }
.status-badge.completed { background: var(--accent-soft); color: var(--accent-contrast); }
.status-badge.ongoing { background: #FEF3C7; color: #7C4A03; }
[data-theme="dark"] .status-badge.ongoing { background: #3a2f0e; color: #F5D78B; }

/* ---------- Service ---------- */
.service-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.service-block h3 { font-size: 1rem; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.service-block h3::before { content: ""; width: 4px; height: 16px; background: var(--accent); border-radius: 2px; }
.service-block ul { display: flex; flex-direction: column; gap: 10px; }
.service-block li { font-size: 0.92rem; color: var(--text-muted); padding-left: 16px; position: relative; }
.service-block li::before { content: "—"; position: absolute; left: 0; color: var(--accent-dark); }
.service-block li strong { color: var(--text); }
@media (max-width: 800px) { .service-grid { grid-template-columns: 1fr; } }

/* ---------- Skills ---------- */
.skills-groups { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 8px; }
.skill-group h3 { font-size: 0.95rem; margin-bottom: 14px; color: var(--text-muted); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.8rem; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { padding: 7px 13px; border-radius: var(--radius-sm); background: var(--bg-alt); border: 1px solid var(--surface-border); font-size: 0.86rem; font-weight: 600; }
@media (max-width: 800px) { .skills-groups { grid-template-columns: 1fr; } }

/* ---------- News ---------- */
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item { display: grid; grid-template-columns: 140px 1fr; gap: 22px; padding: 22px 24px; }
.news-date { font-family: var(--font-mono); font-weight: 700; color: var(--accent-dark); font-size: 0.88rem; }
.news-item h3 { font-size: 1rem; }
.news-item p { margin-top: 8px; font-size: 0.9rem; color: var(--text-muted); }
.news-item a.news-link { margin-top: 10px; display: inline-block; font-size: 0.85rem; font-weight: 700; color: var(--accent-dark); }
@media (max-width: 650px) { .news-item { grid-template-columns: 1fr; gap: 6px; } }

/* ---------- Contact / Footer ---------- */
.site-footer { background: var(--navy); color: var(--navy-contrast); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 48px; }
.footer-brand h2 { color: #fff; font-size: 1.3rem; }
.footer-brand p { margin-top: 12px; color: rgba(248,250,252,0.6); font-size: 0.92rem; max-width: 40ch; }
.footer-col h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(248,250,252,0.5); margin-bottom: 16px; font-family: var(--font-mono); }
.footer-col a, .footer-col .footer-static {
  display: flex; align-items: center; gap: 10px; padding: 8px 0; color: rgba(248,250,252,0.82); font-size: 0.92rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-col a:hover { color: var(--accent-on-navy); }
.footer-col svg { flex-shrink: 0; width: 18px; height: 18px; }
.footer-bottom {
  margin-top: 56px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 0.8rem; color: rgba(248,250,252,0.45);
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr; gap: 36px; } }

/* ---------- Misc ---------- */
.back-to-top {
  position: fixed; right: 24px; bottom: 24px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--accent); color: #052E29; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md); opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition); z-index: 90;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

::selection { background: var(--accent-soft); color: var(--accent-contrast); }

.skeleton { color: var(--text-faint); font-size: 0.9rem; padding: 24px 0; }