/* ══════════════════════════════════════════════
   DESA ADITHYA PORTFOLIO — STYLESHEET
   Theme: Dark Luxury · Syne + DM Sans
   ══════════════════════════════════════════════ */

:root {
  --bg:          #080b10;
  --bg-alt:      #0d1117;
  --bg-card:     #111720;
  --bg-card2:    #141c27;
  --border:      rgba(255,255,255,0.07);
  --border-mid:  rgba(255,255,255,0.12);
  --accent:      #e8c97a;
  --accent2:     #7ec8e3;
  --accent3:     #a78bfa;
  --text:        #e8edf4;
  --text-muted:  #7d8fa3;
  --text-dim:    #4a5568;
  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;
  --radius:       12px;
  --radius-lg:    20px;
  --shadow:       0 4px 40px rgba(0,0,0,0.5);
  --glow:         0 0 40px rgba(232, 201, 122, 0.12);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button { cursor: none; }

/* ── Custom Cursor ────────────────────────────────────────── */
.cursor {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, width 0.3s, height 0.3s, background 0.3s;
  mix-blend-mode: difference;
}
.cursor-trail {
  width: 32px; height: 32px;
  border: 1px solid rgba(232,201,122,0.35);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: all 0.18s ease;
}
body:has(a:hover) .cursor,
body:has(button:hover) .cursor { width: 18px; height: 18px; background: var(--accent2); }

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

/* ── Navigation ──────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}
.nav.scrolled {
  background: rgba(8, 11, 16, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 0;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 800;
  letter-spacing: -0.02em;
}
.dot { color: var(--accent); }
.nav-links {
  display: flex; gap: 2.5rem; list-style: none;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }
.nav-burger {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; padding: 4px;
}
.nav-burger span {
  display: block; width: 22px; height: 1.5px;
  background: var(--text);
  transition: all 0.3s;
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed; inset: 0;
  background: rgba(8,11,16,0.97);
  backdrop-filter: blur(20px);
  z-index: 99;
  align-items: center; justify-content: center;
  flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu ul { list-style: none; text-align: center; }
.mobile-menu ul li { margin: 1.5rem 0; }
.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 700;
  color: var(--text-muted);
  transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--accent); }

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding: 7rem 2rem 4rem;
}
.hero-bg {
  position: absolute; inset: 0;
  pointer-events: none;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(232,201,122,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,201,122,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent);
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}
.orb1 { width: 500px; height: 500px; background: var(--accent); top: -100px; right: -100px; }
.orb2 { width: 350px; height: 350px; background: var(--accent2); bottom: 0; left: -80px; }
.orb3 { width: 250px; height: 250px; background: var(--accent3); top: 40%; left: 40%; opacity: 0.08; }

.hero-content {
  max-width: 1200px; margin: 0 auto; width: 100%;
  position: relative; z-index: 1;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid rgba(232,201,122,0.25);
  background: rgba(232,201,122,0.06);
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.75rem; letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 2rem;
  animation: fadeUp 0.8s both;
  animation-delay: calc(var(--d, 0) * 0.12s);
}
.badge-dot {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.4); }
}
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(4rem, 10vw, 8.5rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.hero-name .line {
  display: block;
  animation: fadeUp 0.8s both;
  animation-delay: calc(var(--d, 0) * 0.12s);
}
.hero-name .accent { color: var(--accent); }

.hero-tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 2vw, 1rem);
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  animation: fadeUp 0.8s both;
  animation-delay: calc(var(--d, 0) * 0.12s);
}
.hero-sub {
  font-size: 1rem; color: var(--text-muted);
  margin-bottom: 2.5rem;
  animation: fadeUp 0.8s both;
  animation-delay: calc(var(--d, 0) * 0.12s);
}
.hero-cta {
  display: flex; gap: 1rem; flex-wrap: wrap;
  margin-bottom: 3.5rem;
  animation: fadeUp 0.8s both;
  animation-delay: calc(var(--d, 0) * 0.12s);
}
.hero-stats {
  display: flex; align-items: center; gap: 2rem; flex-wrap: wrap;
  animation: fadeUp 0.8s both;
  animation-delay: calc(var(--d, 0) * 0.12s);
}
.stat { display: flex; flex-direction: column; }
.stat-num {
  font-family: var(--font-display);
  font-size: 1.75rem; font-weight: 800;
  color: var(--accent); line-height: 1;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 2px;
}
.stat-divider {
  width: 1px; height: 36px;
  background: var(--border-mid);
}

.scroll-hint {
  position: absolute; bottom: 2.5rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.65rem; letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  animation: fadeIn 1s 1.5s both;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(var(--accent), transparent);
  animation: scrollLine 2s infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent);
  color: var(--bg);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.9rem; font-weight: 700;
  letter-spacing: 0.02em;
  border: none;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  box-shadow: 0 4px 20px rgba(232,201,122,0.25);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(232,201,122,0.4);
}
.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border-mid);
  color: var(--text);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 0.9rem; font-weight: 600;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* ── Sections ─────────────────────────────────────────────── */
.section { padding: 7rem 2rem; }
.section-alt { background: var(--bg-alt); }
.container { max-width: 1200px; margin: 0 auto; }
.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 3rem;
}
.section-title em { color: var(--accent); font-style: normal; }

/* ── Reveal Animation ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0s);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── About ───────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 5rem; align-items: start;
}
.about-text p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  font-size: 1.05rem;
  line-height: 1.8;
}
.about-text p strong { color: var(--text); font-weight: 500; }
.about-links { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.social-link {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--border-mid);
  padding: 0.5rem 1rem;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  transition: all 0.2s;
}
.social-link svg { width: 14px; height: 14px; }
.social-link:hover { border-color: var(--accent); color: var(--accent); }

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: sticky; top: 100px;
}
.about-avatar {
  display: flex; justify-content: center;
  margin-bottom: 1.75rem;
  position: relative;
}
.avatar-ring {
  width: 90px; height: 90px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  position: absolute;
  animation: spin 8s linear infinite;
  border-top-color: transparent;
  border-right-color: transparent;
}
@keyframes spin { to { transform: rotate(360deg); } }
.avatar-initials {
  width: 80px; height: 80px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 800;
  color: var(--bg);
  position: relative; z-index: 1;
}
.about-details { display: flex; flex-direction: column; gap: 0.75rem; }
.detail-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
}
.detail-row:last-child { border: none; }
.detail-label {
  font-family: var(--font-mono);
  font-size: 0.72rem; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.detail-val { font-size: 0.9rem; font-weight: 400; }
.highlight { color: var(--accent); font-weight: 500; }
.status-open {
  background: rgba(126, 200, 227, 0.12);
  color: var(--accent2);
  border: 1px solid rgba(126,200,227,0.2);
  padding: 2px 10px; border-radius: 100px;
  font-size: 0.8rem;
}

/* ── Skills ──────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}
.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
  opacity: 0; transform: translateY(20px);
  animation: fadeUp 0.6s forwards;
}
.skill-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.skill-cat {
  font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.85rem;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.skill-tag {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: all 0.2s;
}
.skill-tag:hover { background: rgba(232,201,122,0.1); border-color: rgba(232,201,122,0.3); color: var(--accent); }

/* ── Projects ────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.75rem;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex; flex-direction: column;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
  opacity: 0; transform: translateY(24px);
  animation: fadeUp 0.7s forwards;
  position: relative; overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s;
}
.project-card:hover {
  border-color: rgba(232,201,122,0.25);
  transform: translateY(-5px);
  box-shadow: var(--glow);
}
.project-card:hover::before { transform: scaleX(1); }

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem; letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent2);
  background: rgba(126,200,227,0.08);
  border: 1px solid rgba(126,200,227,0.15);
  padding: 3px 10px; border-radius: 100px;
  display: inline-block; margin-bottom: 1rem;
  align-self: flex-start;
}
.project-title {
  font-family: var(--font-display);
  font-size: 1.15rem; font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.85rem;
  line-height: 1.3;
}
.project-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 1.25rem;
}
.project-impact {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
  padding: 0.6rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.project-stack { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 1.5rem; }
.stack-tag {
  background: rgba(167,139,250,0.08);
  border: 1px solid rgba(167,139,250,0.15);
  color: var(--accent3);
  padding: 3px 10px;
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}
.project-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  align-self: flex-start;
  transition: all 0.2s;
}
.project-link:hover { border-color: var(--accent); color: var(--accent); }

/* ── Research ─────────────────────────────────────────────── */
.research-list { display: flex; flex-direction: column; gap: 1.25rem; }
.research-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.5rem; align-items: start;
  transition: border-color 0.2s, transform 0.2s;
  opacity: 0; animation: fadeUp 0.6s forwards;
}
.research-card:hover { border-color: rgba(232,201,122,0.2); transform: translateX(5px); }
.research-index {
  font-family: var(--font-display);
  font-size: 2rem; font-weight: 800;
  color: var(--border-mid);
  line-height: 1;
  min-width: 40px;
}
.research-type {
  font-family: var(--font-mono);
  font-size: 0.68rem; letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
  display: block;
}
.research-title {
  font-family: var(--font-display);
  font-size: 1rem; font-weight: 600;
  line-height: 1.4;
  margin-bottom: 0.4rem;
}
.research-venue {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.research-year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  white-space: nowrap;
}

/* ── Certifications ───────────────────────────────────────── */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}
.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex; gap: 1rem; align-items: flex-start;
  transition: border-color 0.2s, transform 0.2s;
  opacity: 0; animation: fadeUp 0.6s forwards;
}
.cert-card:hover { border-color: rgba(232,201,122,0.2); transform: translateY(-3px); }
.cert-icon {
  width: 42px; height: 42px; flex-shrink: 0;
  background: linear-gradient(135deg, rgba(232,201,122,0.15), rgba(126,200,227,0.1));
  border: 1px solid rgba(232,201,122,0.2);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}
.cert-name {
  font-family: var(--font-display);
  font-size: 0.9rem; font-weight: 600;
  line-height: 1.3; margin-bottom: 0.3rem;
}
.cert-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}
.cert-meta span { color: var(--accent); }

.achievements-row {
  display: flex; gap: 1.25rem; flex-wrap: wrap;
}
.ach-card {
  flex: 1; min-width: 220px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  opacity: 0; animation: fadeUp 0.6s forwards;
}
.ach-title {
  font-family: var(--font-display);
  font-size: 0.95rem; font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--accent);
}
.ach-detail { font-size: 0.85rem; color: var(--text-muted); }
.ach-year {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.5rem;
}

/* ── Contact ──────────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: start;
}
.contact-info p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
  line-height: 1.8;
}
.contact-detail {
  display: flex; align-items: center; gap: 0.85rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}
.contact-detail a { color: var(--text-muted); transition: color 0.2s; }
.contact-detail a:hover { color: var(--accent); }
.cd-icon {
  width: 36px; height: 36px;
  background: rgba(232,201,122,0.08);
  border: 1px solid rgba(232,201,122,0.15);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
}

/* ── Contact Form ─────────────────────────────────────────── */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.25rem; }
.form-group label {
  font-family: var(--font-mono);
  font-size: 0.72rem; letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s, background 0.2s;
  outline: none;
  resize: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  background: rgba(232,201,122,0.04);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-dim); }
.form-msg {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  text-align: center;
  min-height: 20px;
}
.form-msg.success { color: #6ee7b7; }
.form-msg.error   { color: #fca5a5; }

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 2rem;
}
.footer-inner {
  display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 1rem;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 800;
}
.footer p { font-size: 0.85rem; color: var(--text-dim); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-card { position: static; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .projects-grid { grid-template-columns: 1fr; }
  .research-card { grid-template-columns: 1fr; }
  .research-index { display: none; }
  .research-year { order: -1; }
}
@media (max-width: 600px) {
  .hero { padding: 5rem 1.25rem 3rem; }
  .section { padding: 4rem 1.25rem; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.25rem; }
  .stat-divider { display: none; }
  .cursor, .cursor-trail { display: none; }
  body { cursor: auto; }
  button { cursor: pointer; }
}