/* ── Fonts ─────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=JetBrains+Mono:wght@300;400;500;700&family=DM+Sans:wght@300;400;500;600&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:         #0a0a0a;
  --border:     #222222;
  --border2:    #30363d;
  --green:      #39d353;
  --amber:      #f5a623;
  --blue:       #58a6ff;
  --text:       #e6edf3;
  --muted:      #7d8590;
  --card:       #161b22;
  --mono:       'JetBrains Mono', monospace;
  --serif:      'DM Serif Display', serif;
  --sans:       'DM Sans', sans-serif;
  --ease:       all 0.25s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border2); }

/* ── Scanlines ─────────────────────────────────────────────── */
body::before {
  content: ''; position: fixed; inset: 0; pointer-events: none; z-index: 9000;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.025) 2px, rgba(0,0,0,0.025) 4px
  );
}

/* ── Custom Cursor ─────────────────────────────────────────── */
.cursor {
  position: fixed; width: 10px; height: 10px;
  background: var(--green); border-radius: 50%;
  pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s;
  mix-blend-mode: screen;
}
.cursor-ring {
  position: fixed; width: 36px; height: 36px;
  border: 1.5px solid rgba(57, 211, 83, 0.4); border-radius: 50%;
  pointer-events: none; z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.25s, height 0.25s;
}
.cursor.hover  { width: 18px; height: 18px; background: var(--amber); }
.cursor-ring.hover { width: 54px; height: 54px; border-color: rgba(245,166,35,0.35); }

/* ── Navbar ────────────────────────────────────────────────── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; height: 60px;
  background: rgba(10, 10, 10, 0.85);
  border-bottom: 1px solid var(--border);
  transition: var(--ease);
}
/* Move backdrop-filter to a pseudo-element so navbar doesn't create stacking context */
#navbar::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
#navbar.scrolled {
  background: rgba(10, 10, 10, 0.97);
  border-bottom-color: var(--border2);
}
.nav-logo {
  font-family: var(--mono); font-size: 0.82rem;
  color: var(--green); letter-spacing: 0.05em; text-decoration: none;
}
.nav-logo span { color: var(--muted); }

.nav-links { display: flex; gap: 32px; list-style: none; flex-shrink: 0; }

@media (max-width: 1024px) and (min-width: 769px) {
  #navbar { padding: 0 20px; gap: 16px; }
  .nav-links { gap: 20px; overflow-x: auto; scrollbar-width: none; }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-links a { font-size: 0.65rem; white-space: nowrap; }
}
.nav-links a {
  font-family: var(--mono); font-size: 0.72rem;
  color: var(--muted); text-decoration: none;
  letter-spacing: 0.08em; text-transform: uppercase;
  transition: color 0.2s; position: relative;
}
.nav-links a::before {
  content: './'; color: var(--green); opacity: 0;
  transition: opacity 0.2s; margin-right: 2px;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::before { opacity: 1; }

.hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: none; background: none; border: none; padding: 4px;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--muted); transition: all 0.3s; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -6px); }

/* ── Hero ──────────────────────────────────────────────────── */
#hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 80px 48px 60px; position: relative; overflow: hidden;
}
#hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(57,211,83,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57,211,83,0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}
#hero::after {
  content: ''; position: absolute; top: 15%; left: 55%;
  width: 580px; height: 580px;
  background: radial-gradient(circle, rgba(57,211,83,0.055) 0%, transparent 65%);
  pointer-events: none;
}

.hero-inner {
  max-width: 1100px; width: 100%;
  display: grid; grid-template-columns: 3fr 2fr;
  gap: 64px; align-items: center; position: relative; z-index: 1;
}

h1.name {
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 1.05; color: var(--text);
  margin-bottom: 10px; letter-spacing: -0.02em;
}
h1.name em { font-style: italic; color: var(--green); }

.hero-role {
  font-family: var(--mono); font-size: 0.95rem;
  color: var(--amber); margin-bottom: 28px; letter-spacing: 0.04em;
}
.cursor-blink {
  display: inline-block; width: 10px; height: 1.1em;
  background: var(--amber); vertical-align: middle; margin-left: 3px;
  animation: blink 1.1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-bio {
  font-size: 1rem; color: #8b949e;
  line-height: 1.78; max-width: 560px; margin-bottom: 36px;
}

.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-primary {
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em;
  padding: 12px 28px; background: var(--green); color: #0a0a0a;
  border: none; border-radius: 3px; cursor: none;
  text-decoration: none; font-weight: 700; transition: var(--ease); text-transform: uppercase;
}
.btn-primary:hover { background: #4de165; box-shadow: 0 0 24px rgba(57,211,83,0.35); transform: translateY(-2px); }

.btn-ghost {
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em;
  padding: 11px 28px; background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: 3px; cursor: none;
  text-decoration: none; font-weight: 400; transition: var(--ease); text-transform: uppercase;
}
.btn-ghost:hover { border-color: var(--green); color: var(--green); transform: translateY(-2px); }

@keyframes gradient-spin {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-photo-wrap {
  position: relative;
  padding: 4px;
  border-radius: 18px;
}

/* Animated gradient border */
.hero-photo-wrap::before {
  content: ''; position: absolute;
  inset: -3px; border-radius: 20px;
  background: linear-gradient(135deg, var(--green), var(--blue), #bc8cff, var(--amber), var(--green));
  background-size: 300% 300%;
  animation: gradient-spin 4s linear infinite;
  z-index: 0;
}

/* Gap between border and photo */
.hero-photo-wrap::after {
  content: ''; position: absolute; inset: 3px;
  border-radius: 14px; background: var(--bg); z-index: 1;
}

.hero-photo-frame {
  position: relative; width: 100%; aspect-ratio: 1/1;
  border-radius: 12px; overflow: hidden; z-index: 2;
}
.hero-photo-frame img {
  width: 100%; height: 100%; object-fit: cover; object-position: 40% 40%;
  filter: grayscale(10%) contrast(1.05); transition: filter 0.4s; transform: scale(1.6);
  transform-origin: 40% 40%;
}
.hero-photo-frame:hover img { filter: grayscale(0%) contrast(1); }
.hero-photo-frame::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(57,211,83,0.06) 0%, transparent 60%);
  pointer-events: none;
}

/* ── Section layout ────────────────────────────────────────── */
.section-wrap { max-width: 1200px; margin: 0 auto; padding: 96px 48px; }
.section-wrap + .section-wrap { padding-top: 0; }

.section-header { display: flex; align-items: baseline; gap: 20px; margin-bottom: 52px; }
.section-title { font-family: var(--serif); font-size: 2.4rem; color: var(--text); letter-spacing: -0.02em; white-space: nowrap; }
.section-line { flex: 1; height: 1px; background: var(--border); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Education ─────────────────────────────────────────────── */
.edu-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.edu-single-col { grid-template-columns: 1fr; }

.edu-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 28px 32px 28px 28px;
  display: flex; gap: 24px;
  transition: border-color 0.25s, transform 0.25s;
  position: relative; overflow: hidden;
}
.edu-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--green), var(--blue));
  transform: scaleX(0); transform-origin: left; transition: transform 0.35s ease;
}
.edu-card:hover { border-color: var(--border2); transform: translateY(-3px); }
.edu-card:hover::before { transform: scaleX(1); }

.edu-card-logo {
  width: 80px; height: 80px; min-width: 80px;
  background: #ffffff; border: 1px solid var(--border);
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  overflow: hidden; padding: 10px;
}
.edu-card-logo img { width: 100%; height: 100%; object-fit: contain; }

.edu-card-body { flex: 1; min-width: 0; }
.edu-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 5px; }
.edu-school { font-family: var(--serif); font-size: 1.2rem; color: var(--text); }
.edu-location { font-family: var(--mono); font-size: 0.67rem; color: var(--muted); }
.edu-row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; flex-wrap: wrap; gap: 4px; }
.edu-degree { font-family: var(--mono); font-size: 0.72rem; color: var(--green); letter-spacing: 0.02em; }
.edu-date { font-family: var(--mono); font-size: 0.67rem; color: var(--muted); }
.edu-gpa { font-family: var(--mono); font-size: 0.73rem; color: var(--amber); margin-bottom: 8px; }
.edu-courses { font-size: 0.8rem; color: var(--muted); line-height: 1.55; margin-bottom: 13px; }
.edu-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 0.68rem; color: var(--blue);
  text-decoration: none; letter-spacing: 0.04em; transition: color 0.2s;
}
.edu-link:hover { color: #79c0ff; }

/* ── Timeline ──────────────────────────────────────────────── */
.timeline { position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 0; top: 8px; bottom: 0; width: 1px;
  background: linear-gradient(to bottom, var(--green), var(--border) 85%, transparent);
}

.tl-item {
  display: grid; grid-template-columns: 148px 1fr;
  gap: 36px; margin-bottom: 44px; padding-left: 24px; position: relative;
}
.tl-item::before {
  content: ''; position: absolute; left: -4px; top: 8px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--green);
  transition: background 0.2s, box-shadow 0.2s;
}
.tl-item:hover::before { background: var(--green); box-shadow: 0 0 12px rgba(57,211,83,0.5); }

.tl-left { padding-top: 4px; }
.tl-date { font-family: var(--mono); font-size: 0.67rem; color: var(--muted); line-height: 1.55; }
.tl-logo {
  width: 64px; height: 64px; margin-top: 14px;
  border-radius: 10px; background: #ffffff; border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center; overflow: hidden; padding: 8px;
}
.tl-logo img { width: 100%; height: 100%; object-fit: contain; }

.tl-content {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 8px; padding: 20px 24px; transition: border-color 0.25s;
}
.tl-content:hover { border-color: var(--border2); }

.tl-role { font-family: var(--serif); font-size: 1.12rem; color: var(--text); margin-bottom: 2px; }
.tl-company { font-family: var(--mono); font-size: 0.7rem; color: var(--blue); letter-spacing: 0.04em; margin-bottom: 13px; }
.tl-bullets { list-style: none; }
.tl-bullets li {
  font-size: 0.86rem; color: #8b949e; line-height: 1.72;
  padding-left: 18px; position: relative; margin-bottom: 5px;
}
.tl-bullets li::before { content: '▹'; position: absolute; left: 0; color: var(--green); font-size: 0.77rem; top: 2px; }

/* ── Skills ────────────────────────────────────────────────── */
.skills-wrap { display: flex; flex-direction: column; gap: 48px; }

.skill-group-title {
  font-family: var(--serif); font-size: 1.5rem; color: var(--text);
  margin-bottom: 6px;
}
.skill-group-underline {
  width: 40px; height: 2px;
  background: linear-gradient(90deg, var(--green), var(--blue));
  border-radius: 2px; margin-bottom: 24px;
}

.skill-tags { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

.skill-tag {
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
  gap: 12px; padding: 20px 16px 16px;
  width: 120px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; cursor: default;
  transition: var(--ease);
}
.skill-tag:hover {
  border-color: var(--green);
  background: rgba(57,211,83,0.05);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(57,211,83,0.08);
}

.skill-tag-icon {
  width: 52px; height: 52px; min-width: 52px;
  background: #ffffff; border-radius: 10px;
  display: flex; align-items: center; justify-content: center; padding: 8px;
}
.skill-tag-icon img { width: 100%; height: 100%; object-fit: contain; }

.skill-tag span {
  font-family: var(--sans); font-size: 0.78rem; font-weight: 500;
  color: var(--muted); text-align: center; line-height: 1.3;
}
.skill-tag:hover span { color: var(--text); }

/* ── Projects ──────────────────────────────────────────────── */
.proj-filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 32px; }
.pf-btn {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.07em;
  padding: 7px 16px; background: transparent; border: 1px solid var(--border);
  border-radius: 3px; color: var(--muted); cursor: none;
  transition: var(--ease); text-transform: uppercase;
  display: flex; align-items: center; gap: 6px;
}
.pf-btn:hover, .pf-btn.active { border-color: var(--green); color: var(--green); background: rgba(57,211,83,0.06); }

.proj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.proj-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 22px;
  display: flex; flex-direction: column; gap: 11px;
  transition: border-color 0.25s, transform 0.25s;
  position: relative; overflow: hidden;
}
.proj-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  transform: scaleX(0); transition: transform 0.35s ease;
}
.proj-card:hover { border-color: var(--border2); transform: translateY(-4px); }
.proj-card:hover::after { transform: scaleX(1); }

.proj-card-top { display: flex; justify-content: space-between; align-items: flex-start; }

.proj-badge {
  font-family: var(--mono); font-size: 0.6rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 2px; font-weight: 500;
}
.proj-badge.cloud      { background: rgba(88,166,255,0.12); color: var(--blue);   border: 1px solid rgba(88,166,255,0.2); }
.proj-badge.fullstack  { background: rgba(88,166,255,0.12); color: var(--blue);   border: 1px solid rgba(88,166,255,0.2); }
.proj-badge.ml         { background: rgba(57,211,83,0.1);   color: var(--green);  border: 1px solid rgba(57,211,83,0.2); }
.proj-badge.cv         { background: rgba(188,140,255,0.1); color: #bc8cff;       border: 1px solid rgba(188,140,255,0.2); }
.proj-badge.bigdata    { background: rgba(245,166,35,0.1);  color: var(--amber);  border: 1px solid rgba(245,166,35,0.2); }
.proj-badge.blockchain { background: rgba(188,140,255,0.1); color: #bc8cff;       border: 1px solid rgba(188,140,255,0.2); }
.proj-badge.iot        { background: rgba(255,123,114,0.1); color: #ff7b72;       border: 1px solid rgba(255,123,114,0.2); }

.proj-ext-link { color: var(--muted); font-size: 0.85rem; text-decoration: none; transition: color 0.2s, transform 0.2s; display: inline-block; }
.proj-ext-link:hover { color: var(--green); transform: translate(2px,-2px); }

.proj-title { font-family: var(--serif); font-size: 1.08rem; color: var(--text); line-height: 1.3; }
.proj-sub { font-family: var(--mono); font-size: 0.66rem; color: var(--muted); letter-spacing: 0.04em; margin-top: -4px; }
.proj-desc { font-size: 0.82rem; color: #8b949e; line-height: 1.65; flex-grow: 1; }
.proj-pills { display: flex; flex-wrap: wrap; gap: 5px; }
.proj-pill {
  font-family: var(--mono); font-size: 0.62rem; color: var(--muted);
  padding: 2px 8px; background: rgba(255,255,255,0.03);
  border: 1px solid var(--border); border-radius: 2px;
}
.proj-stats { display: flex; gap: 20px; border-top: 1px solid var(--border); padding-top: 11px; margin-top: auto; }
.pstat { display: flex; flex-direction: column; gap: 1px; }
.pstat-val { font-family: var(--mono); font-size: 0.84rem; font-weight: 700; color: var(--green); }
.pstat-label { font-family: var(--mono); font-size: 0.57rem; color: var(--muted); letter-spacing: 0.04em; }

/* ── Publications ──────────────────────────────────────────── */
.pub-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 32px 36px;
  display: grid; grid-template-columns: 1fr auto; gap: 36px; align-items: start;
  transition: border-color 0.25s;
}
.pub-card:hover { border-color: var(--border2); }

.pub-tag {
  font-family: var(--mono); font-size: 0.67rem; color: var(--amber);
  letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 12px;
  display: flex; align-items: center; gap: 8px;
}
.pub-tag::before { content:''; display:inline-block; width:20px; height:1px; background: var(--amber); }
.pub-title { font-family: var(--serif); font-size: 1.28rem; color: var(--text); margin-bottom: 8px; line-height: 1.35; }
.pub-venue { font-family: var(--mono); font-size: 0.69rem; color: var(--blue); letter-spacing: 0.04em; margin-bottom: 8px; }
.pub-authors { font-size: 0.79rem; color: var(--muted); line-height: 1.5; margin-bottom: 16px; }
.pub-bullets { list-style: none; }
.pub-bullets li { font-size: 0.85rem; color: #8b949e; line-height: 1.68; padding-left: 16px; position: relative; margin-bottom: 5px; }
.pub-bullets li::before { content:'▹'; position:absolute; left:0; color: var(--amber); font-size:0.73rem; top:2px; }

.pub-link-btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 0.69rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text); background: rgba(255,255,255,0.04);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 10px 18px; text-decoration: none; transition: var(--ease); white-space: nowrap;
}
.pub-link-btn:hover { border-color: var(--amber); color: var(--amber); box-shadow: 0 0 16px rgba(245,166,35,0.12); }

/* ── Achievements ──────────────────────────────────────────── */
.ach-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.ach-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 22px 24px;
  display: flex; gap: 16px; align-items: flex-start;
  transition: border-color 0.25s, transform 0.25s;
}
.ach-card:hover { border-color: var(--border2); transform: translateX(4px); }

.ach-icon {
  width: 40px; height: 40px; min-width: 40px;
  background: rgba(245,166,35,0.08); border: 1px solid rgba(245,166,35,0.2);
  border-radius: 6px; display: flex; align-items: center; justify-content: center;
  color: var(--amber); font-size: 0.95rem;
}
.ach-title { font-family: var(--serif); font-size: 1rem; color: var(--text); margin-bottom: 6px; }
.ach-desc { font-size: 0.81rem; color: var(--muted); line-height: 1.6; }

/* ── Contact ───────────────────────────────────────────────── */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-intro { font-family: var(--serif); font-size: 1.9rem; color: var(--text); line-height: 1.3; margin-bottom: 16px; }
.contact-intro span { color: var(--green); font-style: italic; }
.contact-sub { font-size: 0.88rem; color: var(--muted); line-height: 1.75; }

.contact-items { display: flex; flex-direction: column; gap: 10px; }
.contact-row {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px; background: var(--card);
  border: 1px solid var(--border); border-radius: 8px;
  text-decoration: none; transition: var(--ease);
}
.contact-row:hover { border-color: var(--green); transform: translateX(6px); background: rgba(57,211,83,0.04); }
.contact-row-icon {
  width: 36px; height: 36px; background: #ffffff; border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; overflow: hidden; padding: 6px;
}
.contact-row-icon img { width: 100%; height: 100%; object-fit: contain; }
.contact-row-label { font-family: var(--mono); font-size: 0.61rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }
.contact-row-val { font-size: 0.87rem; color: var(--text); }

/* ── Footer ────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border); padding: 28px 48px;
  display: flex; align-items: center; justify-content: space-between;
}
.footer-left { font-family: var(--mono); font-size: 0.7rem; color: var(--muted); }
.footer-left strong { color: var(--green); }
.footer-socials { display: flex; gap: 12px; }
.footer-socials a {
  width: 36px; height: 36px; border: 1px solid var(--border);
  border-radius: 6px; display: flex; align-items: center; justify-content: center;
  text-decoration: none; overflow: hidden; padding: 7px;
  background: #ffffff; transition: var(--ease);
}
.footer-socials a img { width: 100%; height: 100%; object-fit: contain; }
.footer-socials a:hover { border-color: var(--green); box-shadow: 0 0 12px rgba(57,211,83,0.2); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .proj-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  #navbar { padding: 0 20px; }
  .nav-links {
    display: none; position: fixed;
    top: 60px; left: 0; right: 0; bottom: 0;
    background: rgba(10,10,10,0.98);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    flex-direction: column; align-items: center; justify-content: center; gap: 28px;
    z-index: 9999;
  }
  .nav-links.active { display: flex; }
  .nav-links a { font-size: 1rem; }
  .hamburger { display: flex; }

  #hero { padding: 80px 20px 52px; }
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-photo-wrap { max-width: 240px; margin: 0 auto; }
  h1.name { font-size: 2.6rem; }

  .section-wrap { padding: 68px 20px; }
  .section-wrap + .section-wrap { padding-top: 0; }
  .section-title { font-size: 2rem; }

  /* Education - centered logo on top, content stacked below like old portfolio */
  .edu-card {
    flex-direction: column; align-items: center;
    text-align: center; gap: 16px; padding: 24px 20px;
  }
  .edu-card-logo {
    float: none; margin: 0;
    width: 80px; height: 80px; min-width: 80px;
  }
  .edu-card-body { width: 100%; text-align: left; }
  .edu-top { flex-direction: column; align-items: flex-start; gap: 2px; }

  /* Timeline - logo on top row with date, content card below */
  .tl-item {
    display: flex; flex-direction: column;
    gap: 12px; margin-bottom: 32px; padding-left: 20px;
  }
  .tl-left {
    display: flex; flex-direction: row;
    align-items: center; gap: 12px;
  }
  .tl-logo { margin-top: 0; width: 52px; height: 52px; min-width: 52px; }
  .tl-date { font-size: 0.7rem; }

  .proj-grid { grid-template-columns: 1fr; }

  .skill-tag { width: 96px; padding: 16px 12px 14px; }
  .skill-tag-icon { width: 42px; height: 42px; }

  .pub-card { grid-template-columns: 1fr; }
  .ach-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; gap: 32px; }

  footer { flex-direction: column; gap: 16px; text-align: center; padding: 24px 20px; }
}

@media (max-width: 480px) {
  .proj-grid { grid-template-columns: 1fr; }
}