/* ═══════════════════════════════════════════════════════
   VARIABLES & RESET
═══════════════════════════════════════════════════════ */
:root {
  --bg:           #0d1117;
  --bg-alt:       #0a0e18;
  --card:         #161b22;
  --card-hover:   #1c2333;
  --border:       #21262d;
  --border-light: #30363d;
  --text:         #e6edf3;
  --text-muted:   #7d8590;
  --text-dim:     #484f58;

  --green:        #3fb950;
  --green-dim:    #1a3d22;
  --red:          #f85149;
  --blue:         #58a6ff;
  --yellow:       #e3b341;
  --purple:       #a371f7;

  --accent:       #38bdf8;
  --accent-2:     #818cf8;

  --font-sans:    'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  --radius:       12px;
  --radius-sm:    8px;
  --shadow:       0 4px 24px rgba(0,0,0,.4);
  --shadow-lg:    0 8px 48px rgba(0,0,0,.6);
  --transition:   all .2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: #7dd3fc; }

/* Animated rainbow top bar */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--purple), var(--green), var(--accent));
  background-size: 300% 100%;
  animation: topBarShift 6s ease infinite;
  z-index: 200;
}
@keyframes topBarShift {
  0%,100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* ═══════════════════════════════════════════════════════
   TYPOGRAPHY
═══════════════════════════════════════════════════════ */
h1 { font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 800; line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: 1.05rem; font-weight: 600; }
p  { color: var(--text-muted); }

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 50%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ═══════════════════════════════════════════════════════
   LAYOUT
═══════════════════════════════════════════════════════ */
.container  { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }

/* ═══════════════════════════════════════════════════════
   NAVIGATION
═══════════════════════════════════════════════════════ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13,17,23,.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: .9rem;
  color: var(--text);
  white-space: nowrap;
}
.brand-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  flex-shrink: 0;
  animation: dotPulse 3s ease infinite;
}
@keyframes dotPulse {
  0%,100% { box-shadow: 0 0 6px var(--accent); }
  50%      { box-shadow: 0 0 14px var(--accent), 0 0 28px rgba(56,189,248,.3); }
}
.nav-links { display: flex; list-style: none; gap: 4px; margin-left: auto; }
.nav-links a {
  color: var(--text-muted);
  font-size: .82rem;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); background: var(--card); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.3rem;
  cursor: pointer;
  margin-left: auto;
}

/* ═══════════════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════════════ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 80px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 15% 50%, rgba(56,189,248,.07) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 20%, rgba(129,140,248,.07) 0%, transparent 55%),
    radial-gradient(ellipse at 65% 85%, rgba(63,185,80,.04) 0%, transparent 45%),
    var(--bg);
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56,189,248,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,.035) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, black 30%, transparent 100%);
}

/* Floating orbs */
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: .18;
}
.orb-1 { width: 400px; height: 400px; left: -100px; top: 20%;  background: var(--accent);   animation: orbFloat1 8s ease-in-out infinite; }
.orb-2 { width: 350px; height: 350px; right: -80px; top: 10%;  background: var(--accent-2); animation: orbFloat2 10s ease-in-out infinite; }
.orb-3 { width: 300px; height: 300px; right: 20%;   bottom: 5%; background: var(--green);   animation: orbFloat3 12s ease-in-out infinite; opacity: .1; }

@keyframes orbFloat1 { 0%,100%{transform:translateY(0)}   50%{transform:translateY(-30px)} }
@keyframes orbFloat2 { 0%,100%{transform:translateY(0)}   50%{transform:translateY(20px)}  }
@keyframes orbFloat3 { 0%,100%{transform:translateX(0)}   50%{transform:translateX(-20px)} }

.hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 80px;
  width: 100%;
}

.hero-content { max-width: 600px; }

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 20px;
  border: 1px solid transparent;
  background:
    linear-gradient(var(--bg), var(--bg)) padding-box,
    linear-gradient(135deg, var(--accent), var(--accent-2)) border-box;
  padding: 5px 16px;
  border-radius: 100px;
}

.hero-title { margin-bottom: 24px; }

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 500px;
  margin-bottom: 48px;
  line-height: 1.7;
}

.hero-stats { display: flex; gap: 48px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stat  { display: flex; flex-direction: column; }

.stat-number {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  line-height: 1;
}
.gradient-num {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: .78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-top: 6px;
  font-weight: 500;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .9rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0d1117;
}
.btn-primary:hover {
  opacity: .9;
  color: #0d1117;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(56,189,248,.35);
}
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-light);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(56,189,248,.1);
}

/* Hero Photo */
.hero-photo-wrap {
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 320px;
  height: 320px;
}
.hero-photo-ring {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--purple), var(--accent));
  background-size: 300% 300%;
  animation: ringGradient 6s ease infinite;
  box-shadow: 0 0 0 1px rgba(56,189,248,.1), 0 0 50px rgba(56,189,248,.15), 0 0 100px rgba(129,140,248,.1);
  flex-shrink: 0;
}
@keyframes ringGradient {
  0%,100% { background-position: 0% 50%; box-shadow: 0 0 50px rgba(56,189,248,.2), 0 0 100px rgba(129,140,248,.1); }
  33%      { background-position: 100% 50%; box-shadow: 0 0 50px rgba(129,140,248,.2), 0 0 100px rgba(163,113,247,.12); }
  66%      { background-position: 50% 100%; box-shadow: 0 0 50px rgba(63,185,80,.15), 0 0 100px rgba(56,189,248,.1); }
}
.hero-photo-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  background: var(--card);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.hero-photo-fallback {
  display: none;
  font-size: 4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  animation: fadeInUp 1s 1.5s ease both;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(var(--accent), transparent);
  animation: scrollPulse 2s ease infinite;
}

/* ═══════════════════════════════════════════════════════
   SECTION HEADERS
═══════════════════════════════════════════════════════ */
.section-header { text-align: center; margin-bottom: 56px; display: flex; flex-direction: column; align-items: center; }

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
  border: 1px solid transparent;
  background:
    linear-gradient(var(--bg), var(--bg)) padding-box,
    linear-gradient(135deg, var(--accent), var(--accent-2)) border-box;
}
.section-alt .section-tag {
  background:
    linear-gradient(var(--bg-alt), var(--bg-alt)) padding-box,
    linear-gradient(135deg, var(--accent), var(--accent-2)) border-box;
}

.section-header h2 {
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}
.section-header h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 2px;
  margin: 12px auto 0;
}
.section-header p { max-width: 580px; margin: 16px auto 0; font-size: 1.0rem; }

/* ═══════════════════════════════════════════════════════
   CARDS
═══════════════════════════════════════════════════════ */
.chart-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.chart-card:hover {
  border-color: rgba(56,189,248,.25);
  box-shadow: 0 0 0 1px rgba(56,189,248,.06), 0 8px 32px rgba(0,0,0,.35);
}

/* ═══════════════════════════════════════════════════════
   ICON BOXES  (reusable colored icon containers)
═══════════════════════════════════════════════════════ */
.pro-icon, .edu-icon-box, .proj-icon-wrap, .contact-icon {
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Size variants */
.pro-icon       { width: 36px; height: 36px; margin-bottom: 12px; }
.edu-icon-box   { width: 48px; height: 48px; margin-bottom: 16px; }
.proj-icon-wrap { width: 48px; height: 48px; }
.contact-icon   { width: 52px; height: 52px; margin-bottom: 10px; }

/* Color variants */
.icon-accent,  .icon-box-accent  { background: rgba(56,189,248,.12);  color: var(--accent);   border: 1px solid rgba(56,189,248,.22); }
.icon-purple,  .icon-box-purple  { background: rgba(129,140,248,.12); color: var(--accent-2); border: 1px solid rgba(129,140,248,.22); }
.icon-green,   .icon-box-green   { background: rgba(63,185,80,.12);   color: var(--green);    border: 1px solid rgba(63,185,80,.22); }
.icon-yellow,  .icon-box-yellow  { background: rgba(227,179,65,.12);  color: var(--yellow);   border: 1px solid rgba(227,179,65,.22); }
.icon-blue,    .icon-box-blue    { background: rgba(88,166,255,.12);  color: var(--blue);     border: 1px solid rgba(88,166,255,.22); }
.icon-red,     .icon-box-red     { background: rgba(255,70,70,.12);   color: #ff4646;         border: 1px solid rgba(255,70,70,.22); }

/* ═══════════════════════════════════════════════════════
   ABOUT
═══════════════════════════════════════════════════════ */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}
.about-statement {
  color: var(--text-muted);
  font-size: 1.0rem;
  line-height: 1.8;
  margin-bottom: 22px;
}
.about-statement:last-child { margin-bottom: 0; }

.about-card { padding: 0; overflow: hidden; }

.quick-fact {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}
.qf-last { border-bottom: none; }
.qf-label {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-dim);
  font-weight: 500;
}
.qf-value {
  font-size: .92rem;
  color: var(--text);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}
.qf-sub  { font-size: .78rem; color: var(--text-muted); }
.qf-link { font-size: .88rem; color: var(--accent); font-weight: 500; }
.qf-link:hover { color: #7dd3fc; }

.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  flex-shrink: 0;
  animation: dotPulse 3s ease infinite;
}

/* ═══════════════════════════════════════════════════════
   SKILLS
═══════════════════════════════════════════════════════ */
.skills-layout     { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.skills-card-label { margin-bottom: 24px; }

.skill-bars { display: flex; flex-direction: column; gap: 18px; }
.skill-bar-item { display: flex; flex-direction: column; gap: 8px; }
.skill-bar-top  { display: flex; justify-content: space-between; align-items: center; }

.skill-name  { font-size: .88rem; font-weight: 500; color: var(--text); }

.skill-level {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.skill-level.expert       { background: rgba(63,185,80,.15);  color: var(--green);    border: 1px solid rgba(63,185,80,.3); }
.skill-level.advanced     { background: rgba(56,189,248,.1);  color: var(--accent);   border: 1px solid rgba(56,189,248,.25); }
.skill-level.intermediate { background: rgba(129,140,248,.1); color: var(--accent-2); border: 1px solid rgba(129,140,248,.25); }

.skill-track { width: 100%; height: 5px; background: var(--border); border-radius: 100px; overflow: hidden; }
.skill-fill  { height: 100%; border-radius: 100px; width: 0; transition: width 1.1s cubic-bezier(.4,0,.2,1); }

.tool-tags  { display: flex; flex-wrap: wrap; gap: 8px; }
.tool-tag {
  font-size: .75rem;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--bg);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  font-weight: 500;
  transition: var(--transition);
}
.tool-tag:hover { border-color: var(--accent); color: var(--accent); }

/* Professional Skills */
.pro-skills-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pro-skill {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  transition: var(--transition);
}
.pro-skill:hover { border-color: rgba(56,189,248,.2); background: var(--card-hover); transform: translateY(-2px); }
.pro-skill-name { display: block; font-size: .88rem; font-weight: 600; color: var(--text); margin-bottom: 5px; }
.pro-skill p    { font-size: .78rem; line-height: 1.5; color: var(--text-muted); }

/* ═══════════════════════════════════════════════════════
   PROJECTS
═══════════════════════════════════════════════════════ */
.proj-tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.proj-tag {
  font-family: var(--font-mono);
  font-size: .7rem;
  padding: 3px 10px;
  border-radius: 100px;
  background: rgba(56,189,248,.08);
  border: 1px solid rgba(56,189,248,.2);
  color: var(--accent);
  font-weight: 500;
}
.proj-tag-purple { background: rgba(129,140,248,.08); border-color: rgba(129,140,248,.2); color: var(--accent-2); }
.proj-tag-green  { background: rgba(63,185,80,.08);   border-color: rgba(63,185,80,.2);   color: var(--green); }
.proj-tag-blue   { background: rgba(88,166,255,.08);  border-color: rgba(88,166,255,.2);  color: var(--blue); }

/* Featured */
.featured-project {
  position: relative;
  margin-bottom: 24px;
  border: 1px solid transparent;
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    linear-gradient(135deg, var(--accent), var(--accent-2), var(--purple)) border-box;
  border-radius: var(--radius);
}
.featured-project:hover {
  box-shadow: 0 0 40px rgba(56,189,248,.08), 0 8px 40px rgba(0,0,0,.4);
}
.featured-badge-wrap { margin-bottom: 20px; }
.featured-badge {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  padding: 4px 14px;
  border-radius: 100px;
  background: linear-gradient(135deg, rgba(56,189,248,.15), rgba(129,140,248,.15));
  border: 1px solid rgba(56,189,248,.3);
  color: var(--accent);
}
.featured-layout {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 40px;
  align-items: start;
}
.featured-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.3;
}
.featured-desc {
  font-size: .95rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.featured-highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 28px;
}
.featured-highlights li {
  font-size: .88rem;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.featured-highlights li::before {
  content: '→';
  position: absolute;
  left: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
}
.featured-highlights li strong { color: var(--green); }
.featured-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* Preview stats */
.preview-stats-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.preview-stat  { display: flex; flex-direction: column; gap: 4px; padding: 18px 20px; }
.preview-num   {
  font-size: 1.6rem;
  font-weight: 800;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.preview-label {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  font-weight: 500;
}
.preview-divider { height: 1px; background: var(--border); }

/* Other projects grid */
.projects-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.proj-card     { display: flex; flex-direction: column; gap: 12px; transition: border-color .2s, box-shadow .2s, transform .2s; }

.proj-card-purple { border-top: 2px solid var(--accent-2); }
.proj-card-green  { border-top: 2px solid var(--green); }
.proj-card-blue   { border-top: 2px solid var(--blue); }
.proj-card-purple:hover {
  border-color: rgba(129,140,248,.35);
  box-shadow: 0 0 0 1px rgba(129,140,248,.08), 0 10px 36px rgba(0,0,0,.4);
  transform: translateY(-4px);
}
.proj-card-green:hover {
  border-color: rgba(63,185,80,.35);
  box-shadow: 0 0 0 1px rgba(63,185,80,.08), 0 10px 36px rgba(0,0,0,.4);
  transform: translateY(-4px);
}
.proj-card-blue:hover {
  border-color: rgba(88,166,255,.35);
  box-shadow: 0 0 0 1px rgba(88,166,255,.08), 0 10px 36px rgba(0,0,0,.4);
  transform: translateY(-4px);
}

/* Project link pills */
.proj-links { display: flex; gap: 8px; margin-top: auto; flex-wrap: wrap; padding-top: 4px; }
.proj-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 7px 14px;
  border-radius: 100px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background .2s, border-color .2s, transform .15s;
}
.proj-link-video   { background: rgba(129,140,248,.1); border-color: rgba(129,140,248,.3); color: var(--accent-2); }
.proj-link-video:hover   { background: rgba(129,140,248,.2); border-color: rgba(129,140,248,.55); transform: translateY(-1px); }
.proj-link-article { background: rgba(227,179,65,.08); border-color: rgba(227,179,65,.28); color: var(--yellow); }
.proj-link-article:hover { background: rgba(227,179,65,.16); border-color: rgba(227,179,65,.5); transform: translateY(-1px); }
.proj-link-demo    { background: rgba(63,185,80,.08);  border-color: rgba(63,185,80,.28);  color: var(--green); }
.proj-link-demo:hover    { background: rgba(63,185,80,.16);  border-color: rgba(63,185,80,.5);  transform: translateY(-1px); }

.proj-card-top { display: flex; justify-content: space-between; align-items: center; }
.proj-date     { font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted); }
.proj-title    { font-size: 1.05rem; font-weight: 700; color: var(--text); line-height: 1.3; }
.proj-desc     { font-size: .88rem; color: var(--text-muted); line-height: 1.65; flex: 1; }

.proj-achievement {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  margin-top: auto;
}
.achievement-yellow { background: rgba(227,179,65,.06);  border: 1px solid rgba(227,179,65,.2); }
.achievement-blue   { background: rgba(56,189,248,.06);  border: 1px solid rgba(56,189,248,.18); }

.achievement-inner {
  display: flex;
  align-items: center;
  gap: 6px;
}
.achievement-yellow .achievement-inner { color: var(--yellow); }
.achievement-blue   .achievement-inner { color: var(--accent); }

.achievement-badge { font-size: .78rem; font-weight: 600; }
.achievement-note  { font-size: .72rem; color: var(--text-muted); padding-left: 19px; }

/* ═══════════════════════════════════════════════════════
   EXPERIENCE
═══════════════════════════════════════════════════════ */
.experience-list { display: flex; flex-direction: column; gap: 24px; }

.exp-card {
  border-left: 3px solid transparent;
  border-image: linear-gradient(180deg, var(--accent), var(--accent-2)) 1;
  padding-left: 32px;
}
.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  gap: 24px;
  flex-wrap: wrap;
}
.exp-role    { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.exp-company { font-size: .88rem; color: var(--accent); font-weight: 500; }
.exp-meta    { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; flex-shrink: 0; }
.exp-dates   { font-family: var(--font-mono); font-size: .78rem; color: var(--text-muted); white-space: nowrap; }
.exp-location { font-size: .75rem; color: var(--text-dim); }

.exp-bullets { list-style: none; display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.exp-bullets li {
  font-size: .9rem;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}
.exp-bullets li::before {
  content: '·';
  position: absolute;
  left: 4px;
  color: var(--accent);
  font-weight: 700;
}
.exp-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ═══════════════════════════════════════════════════════
   EDUCATION
═══════════════════════════════════════════════════════ */
.edu-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.edu-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: var(--transition);
}
.edu-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,.5); }

.edu-accent { border-top: 2px solid transparent; border-image: linear-gradient(90deg, var(--accent), var(--accent-2)) 1; }
.edu-green  { border-top: 2px solid var(--green); }
.edu-yellow { border-top: 2px solid var(--yellow); }

.edu-issuer {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  font-family: var(--font-mono);
  margin-top: 4px;
}
.edu-accent .edu-issuer { color: var(--accent); }
.edu-green  .edu-issuer { color: var(--green); }
.edu-yellow .edu-issuer { color: var(--yellow); }

.edu-degree { font-size: 1rem; font-weight: 700; color: var(--text); line-height: 1.3; margin-top: 4px; }
.edu-focus  { font-size: .82rem; color: var(--text-muted); }
.edu-date   { font-family: var(--font-mono); font-size: .75rem; color: var(--text-dim); margin-top: auto; padding-top: 14px; }

/* ═══════════════════════════════════════════════════════
   CONTACT
═══════════════════════════════════════════════════════ */
.contact-grid-3 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 32px;
}
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding: 32px 20px;
  transition: var(--transition);
  color: var(--text);
}
.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56,189,248,.3);
  box-shadow: 0 0 30px rgba(56,189,248,.07), 0 12px 40px rgba(0,0,0,.4);
  color: var(--text);
}
.contact-label { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); font-weight: 500; }
.contact-value { font-size: .85rem; color: var(--text); font-weight: 500; word-break: break-all; }
.contact-note  { text-align: center; }
.contact-note p { font-size: .88rem; color: var(--text-muted); }

/* Resume CTA */
.resume-cta { text-align: center; margin-top: 40px; }
.btn-resume {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 36px;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: .02em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0d1117;
  box-shadow: 0 4px 24px rgba(56,189,248,.28);
  transition: transform .2s, box-shadow .2s, opacity .2s;
}
.btn-resume:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(56,189,248,.42);
  opacity: .92;
}

/* ═══════════════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════════════ */
footer { background: var(--bg-alt); border-top: 1px solid var(--border); padding: 40px 0; }
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: .9rem; font-weight: 600; color: var(--text); }
.footer-meta p { font-size: .82rem; color: var(--text-muted); }
.footer-stack  { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-top: 4px; }
.stack-tag {
  font-family: var(--font-mono);
  font-size: .72rem;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════════
   ANIMATIONS
═══════════════════════════════════════════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scrollPulse {
  0%,100% { opacity: .3; transform: scaleY(1); }
  50%     { opacity: 1;  transform: scaleY(1.1); }
}
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .hero-layout     { grid-template-columns: 1fr; gap: 48px; justify-items: center; text-align: center; }
  .hero-content    { max-width: 100%; }
  .hero-sub        { max-width: 100%; }
  .hero-stats      { justify-content: center; }
  .hero-cta        { justify-content: center; }
  .about-layout    { grid-template-columns: 1fr; }
  .featured-layout { grid-template-columns: 1fr; }
  .preview-stats-card { display: flex; flex-wrap: wrap; }
  .preview-stat    { flex: 1; min-width: 100px; }
  .preview-divider { width: 1px; height: auto; }
  .edu-grid        { grid-template-columns: 1fr 1fr; }
  .contact-grid-3  { grid-template-columns: 1fr 1fr 1fr 1fr; max-width: 100%; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 60px; left: 0; right: 0;
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    gap: 4px;
    z-index: 99;
  }
  .section { padding: 64px 0; }
  .hero-photo-wrap { width: 260px; height: 260px; }
  .hero-photo-ring { width: 240px; height: 240px; }
  .hero-stats      { gap: 24px; }
  .skills-layout   { grid-template-columns: 1fr; }
  .pro-skills-grid { grid-template-columns: 1fr; }
  .projects-grid   { grid-template-columns: 1fr; }
  .exp-header      { flex-direction: column; gap: 8px; }
  .exp-meta        { align-items: flex-start; }
  .edu-grid        { grid-template-columns: 1fr; }
  .contact-grid-3  { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container       { padding: 0 16px; }
  .hero-photo-wrap { width: 220px; height: 220px; }
  .hero-photo-ring { width: 200px; height: 200px; }
  .orb-1, .orb-2, .orb-3 { display: none; }
}