:root{
  --bg: #0b0d10;
  --bg2:#0f1318;
  --panel:#121826;
  --text:#e9edf6;
  --muted:#aab4c5;
  --border: rgba(255,255,255,.10);
  --shadow: 0 18px 60px rgba(0,0,0,.40);
  --accent:#67e8f9;
  --accent2:#a78bfa;
  --danger:#fb7185;
  --radius: 18px;
  --radius2: 26px;
  --max: 1120px;
  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "Fraunces", ui-serif, Georgia, serif;
}

html[data-theme="light"]{
  --bg: #fbfbfd;
  --bg2:#f4f6fb;
  --panel:#ffffff;
  --text:#0c1220;
  --muted:#445066;
  --border: rgba(10,16,32,.12);
  --shadow: 0 18px 60px rgba(14,28,54,.14);
  --accent:#0ea5e9;
  --accent2:#7c3aed;
  --danger:#e11d48;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(1100px 600px at 10% -10%, rgba(103,232,249,.20), transparent 60%),
    radial-gradient(900px 520px at 90% 0%, rgba(167,139,250,.16), transparent 55%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  min-height:100vh;
}

/* Canvas sits behind everything */
#particle-canvas{
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: .95;
}

.container{ width:min(var(--max), calc(100% - 40px)); margin:0 auto; }
.section{ padding: 88px 0; }
.section.alt{ background: linear-gradient(180deg, transparent, rgba(255,255,255,.04), transparent); }

.skip-link{
  position:absolute; left:-9999px; top:12px;
  background:var(--panel); color:var(--text);
  padding:10px 12px; border-radius: 12px;
  border:1px solid var(--border); box-shadow: var(--shadow);
}
.skip-link:focus{ left:12px; z-index: 9999; }

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0;
}

.site-header{
  position: sticky; top:0; z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(10, 12, 16, .55);
  border-bottom: 1px solid var(--border);
}
html[data-theme="light"] .site-header{ background: rgba(251, 251, 253, .72); }

.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding: 14px 0;
}
.brand{
  display:flex; align-items:center; gap:10px;
  color:var(--text); text-decoration:none; font-weight: 800;
  letter-spacing: .2px;
}
.brand-mark{
  width: 16px; height: 16px; border-radius: 6px;
  background: conic-gradient(from 180deg, var(--accent), var(--accent2), var(--accent));
  box-shadow: 0 0 0 4px rgba(103,232,249,.10), 0 0 0 10px rgba(167,139,250,.08);
}
.brand-text{ font-family: var(--font-serif); font-variation-settings: "opsz" 80; }

.nav{ display:flex; align-items:center; gap:14px; }
.nav-toggle{
  display:none;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.04);
  color:var(--text);
  border-radius: 12px;
  padding: 10px 12px;
}
.nav-toggle-lines{
  display:inline-block;
  width:18px; height:2px; background: currentColor;
  position:relative;
}
.nav-toggle-lines::before,
.nav-toggle-lines::after{
  content:"";
  position:absolute; left:0;
  width:18px; height:2px; background: currentColor;
}
.nav-toggle-lines::before{ top:-6px; }
.nav-toggle-lines::after{ top:6px; }

.nav-links{ display:flex; align-items:center; gap:14px; }
.nav-links a{
  color: var(--muted);
  text-decoration:none;
  font-size: 14px;
  padding: 10px 10px;
  border-radius: 12px;
}
.nav-links a:hover{ color: var(--text); background: rgba(255,255,255,.05); }
.header-actions{ display:flex; align-items:center; gap:10px; }
.icon-btn{
  border:1px solid var(--border);
  background: rgba(255,255,255,.04);
  color: var(--text);
  border-radius: 14px;
  padding: 10px 12px;
  cursor:pointer;
}
.icon-btn:hover{ background: rgba(255,255,255,.07); }

/* Hide SVG sprite but keep in DOM for <use> */
.svg-sprite{
  position:absolute;
  width:0;
  height:0;
  overflow:hidden;
}

/* Unified icon styling (SVG via <use>) */
.icon, .chip-icon, .platform-badge, .contact-ico, .tag-ico{
  --icon-bg: linear-gradient(135deg, var(--accent), var(--accent2));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-radius: 10px;
  background: var(--icon-bg);
  color: rgba(10, 12, 16, .92);
}
.chip-icon, .platform-badge, .contact-ico{ width: 16px; height: 16px; border-radius: 10px; }
.tag-ico{ width: 16px; height: 16px; border-radius: 10px; }

.icon svg,
.chip-icon svg,
.platform-badge svg,
.contact-ico svg,
.tag-ico svg{
  width: 70%;
  height: 70%;
  display:block;
}

/* Slightly different radii for some icons */
.chip-icon[data-icon="mail"], .contact-ico[data-icon="mail"]{ border-radius: 999px; }
.chip-icon[data-icon="github"], .contact-ico[data-icon="github"]{ border-radius: 8px; }
.chip-icon[data-icon="linkedin"], .contact-ico[data-icon="linkedin"]{ border-radius: 12px; }

/* Colorful "logo" gradients per icon */
.chip-icon[data-icon="github"], .contact-ico[data-icon="github"]{
  --icon-bg: linear-gradient(135deg, #111827, #6b7280);
  color: #ffffff;
}
.chip-icon[data-icon="linkedin"], .contact-ico[data-icon="linkedin"]{
  --icon-bg: linear-gradient(135deg, #0a66c2, #22c1ff);
  color: #07101f;
}
.chip-icon[data-icon="mail"], .contact-ico[data-icon="mail"]{
  --icon-bg: linear-gradient(135deg, #f97316, #fb7185);
  color: #1b0a0a;
}
.platform-badge[data-icon="code"]{
  --icon-bg: linear-gradient(135deg, #22c55e, #60a5fa);
  color: #07101f;
}

.tag-ico[data-icon="cpp"]{ --icon-bg: linear-gradient(135deg, #2563eb, #60a5fa); color: #07101f; }
.tag-ico[data-icon="java"]{ --icon-bg: linear-gradient(135deg, #f97316, #ef4444); color: #1b0a0a; }
.tag-ico[data-icon="javascript"]{ --icon-bg: linear-gradient(135deg, #facc15, #f59e0b); color: #1a1300; }
.tag-ico[data-icon="kotlin"]{ --icon-bg: linear-gradient(135deg, #7c3aed, #22c1ff); color: #07101f; }
.tag-ico[data-icon="html"]{ --icon-bg: linear-gradient(135deg, #f97316, #fb7185); color: #1b0a0a; }
.tag-ico[data-icon="css"]{ --icon-bg: linear-gradient(135deg, #2563eb, #a78bfa); color: #07101f; }
.tag-ico[data-icon="tailwind"]{ --icon-bg: linear-gradient(135deg, #22d3ee, #60a5fa); color: #07101f; }
.tag-ico[data-icon="react"]{ --icon-bg: linear-gradient(135deg, #22d3ee, #a78bfa); color: #07101f; }
.tag-ico[data-icon="node"]{ --icon-bg: linear-gradient(135deg, #22c55e, #a3e635); color: #07101f; }
.tag-ico[data-icon="express"]{ --icon-bg: linear-gradient(135deg, #111827, #94a3b8); color: #ffffff; }
.tag-ico[data-icon="spring"]{ --icon-bg: linear-gradient(135deg, #22c55e, #10b981); color: #07101f; }
.tag-ico[data-icon="mongodb"]{ --icon-bg: linear-gradient(135deg, #16a34a, #22c55e); color: #07101f; }
.tag-ico[data-icon="mysql"]{ --icon-bg: linear-gradient(135deg, #2563eb, #f59e0b); color: #07101f; }
.tag-ico[data-icon="postgresql"]{ --icon-bg: linear-gradient(135deg, #1d4ed8, #93c5fd); color: #07101f; }
.tag-ico[data-icon="aws"]{ --icon-bg: linear-gradient(135deg, #f59e0b, #f97316); color: #1a1300; }
.tag-ico[data-icon="android"]{ --icon-bg: linear-gradient(135deg, #22c55e, #22d3ee); color: #07101f; }

.hero{ padding-top: 64px; }
.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr .85fr;
  gap: 26px;
  align-items: stretch;
}
.eyebrow{
  display:inline-flex;
  gap:10px;
  align-items:center;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: 12px;
  margin: 0 0 14px;
}
.hero-title{
  font-family: var(--font-serif);
  font-weight: 800;
  letter-spacing: .2px;
  line-height: 1.06;
  font-size: clamp(34px, 4vw, 54px);
  margin: 0 0 14px;
}
.hero-subtitle{
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 22px;
}
.hero-cta{ display:flex; gap:12px; flex-wrap: wrap; margin-bottom: 18px; }
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  text-decoration:none;
  border-radius: 14px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  font-weight: 700;
  letter-spacing: .1px;
}
.btn.primary{
  background: linear-gradient(135deg, rgba(103,232,249,.18), rgba(167,139,250,.18));
  color: var(--text);
  box-shadow: 0 14px 34px rgba(103,232,249,.10);
}
.btn.primary:hover{ transform: translateY(-1px); }
.btn.ghost{ background: rgba(255,255,255,.03); color: var(--text); }
.btn.ghost:hover{ background: rgba(255,255,255,.06); }
.btn.small{ padding: 10px 12px; border-radius: 12px; font-size: 14px; }

.hero-links{ display:flex; flex-wrap:wrap; gap:10px; margin: 8px 0 18px; }
.chip{
  display:inline-flex; align-items:center; gap:10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  color: var(--text);
  text-decoration:none;
  padding: 10px 12px;
  border-radius: 999px;
  font-weight: 650;
  font-size: 14px;
}
.chip:hover{ background: rgba(255,255,255,.06); }

.hero-stats{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.stat{
  border:1px solid var(--border);
  background: rgba(255,255,255,.03);
  border-radius: var(--radius);
  padding: 14px 14px;
}
.stat-value{ font-weight: 900; letter-spacing: .2px; }
.stat-label{ color: var(--muted); font-size: 13px; margin-top: 6px; line-height: 1.3; }

.hero-card{
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  border-radius: var(--radius2);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.photo-frame{
  position: relative;
  height: 310px;
  background:
    radial-gradient(400px 160px at 20% 10%, rgba(103,232,249,.30), transparent 70%),
    radial-gradient(380px 220px at 70% 0%, rgba(167,139,250,.28), transparent 70%),
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-bottom: 1px solid var(--border);
}
.photo-frame img{
  width:100%; height:100%;
  object-fit: cover;
  display:block;
}
.photo-fallback{
  position:absolute; inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:6px;
  color: var(--muted);
  text-align:center;
  padding: 18px;
}
.photo-missing img{ display:none; }
.photo-missing .photo-fallback{ display:flex; }
.photo-fallback-title{ font-weight: 900; font-family: var(--font-serif); color: var(--text); }
.photo-fallback-sub{ font-size: 13px; }
.hero-card-body{ padding: 18px 18px 18px; }
.card-title{ margin: 0 0 10px; }

.section-header{ margin-bottom: 22px; }
.section-header h2{
  font-family: var(--font-serif);
  font-weight: 850;
  letter-spacing: .2px;
  margin: 0 0 8px;
  font-size: clamp(26px, 3vw, 36px);
}
.section-header p{ margin:0; color: var(--muted); line-height: 1.7; }
.subheading{
  margin: 22px 0 12px;
  font-size: 14px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.grid{ display:grid; gap: 14px; }
.cards-3{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card, .project-card, .resume-card, .contact-card, .contact-form{
  border: 1px solid var(--border);
  background: rgba(255,255,255,.03);
  border-radius: var(--radius);
  padding: 16px 16px;
}
.card h3, .project-card h3{ margin: 0 0 10px; }

.tag-row{ display:flex; gap: 10px; flex-wrap: wrap; }
.tag{
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(255,255,255,.02);
  display:inline-flex;
  align-items:center;
  gap: 8px;
}

.platforms{ margin-top: 18px; }
.platform-row{ display:flex; gap: 10px; flex-wrap: wrap; }
.platform{
  display:inline-flex; align-items:center; gap:10px;
  text-decoration:none;
  color: var(--text);
  border:1px dashed var(--border);
  background: rgba(255,255,255,.02);
  padding: 12px 12px;
  border-radius: 14px;
  font-weight: 700;
}
.platform:hover{ background: rgba(255,255,255,.05); }

.project-card{
  display:flex;
  flex-direction:column;
  gap: 10px;
}
.project-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 10px;
}
.project-title{ margin:0; }
.project-desc{ margin:0; color: var(--muted); line-height: 1.7; }
.pill{
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(103,232,249,.35);
  background: rgba(103,232,249,.10);
}
.pill.subtle{
  border-color: rgba(167,139,250,.30);
  background: rgba(167,139,250,.10);
}
.project-actions{ display:flex; gap: 10px; margin-top: 6px; flex-wrap:wrap; }

.note{
  margin-top: 16px;
  border: 1px solid rgba(103,232,249,.25);
  background: linear-gradient(135deg, rgba(103,232,249,.10), rgba(167,139,250,.08));
  border-radius: var(--radius);
  padding: 14px 14px;
  color: var(--text);
  line-height: 1.6;
}

.timeline{
  display:grid;
  gap: 12px;
}
.timeline-item{
  display:grid;
  grid-template-columns: 18px 1fr;
  gap: 12px;
  align-items:start;
}
.timeline-dot{
  width: 12px; height: 12px;
  margin-top: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 4px rgba(103,232,249,.12);
}
.timeline-body h3{ margin: 0 0 4px; }
.muted{ color: var(--muted); }
.small{ font-size: 14px; line-height: 1.6; }

.resume-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
}
.resume-title{ margin:0 0 6px; }
.resume-actions{ display:flex; gap: 10px; flex-wrap:wrap; }

.contact-grid{
  display:grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 14px;
  align-items:start;
}
.contact-lines{ display:grid; gap: 10px; margin-top: 10px; }
.contact-line{
  display:flex; align-items:center; gap: 10px;
  text-decoration:none;
  color: var(--text);
  border: 1px solid var(--border);
  background: rgba(255,255,255,.02);
  padding: 12px 12px;
  border-radius: 14px;
}
.contact-line:hover{ background: rgba(255,255,255,.06); }

.field{ display:grid; gap: 6px; margin-bottom: 12px; }
label{ font-size: 14px; font-weight: 800; letter-spacing: .2px; }
input, textarea{
  width:100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.02);
  padding: 12px 12px;
  color: var(--text);
  font: inherit;
}
input::placeholder, textarea::placeholder{ color: rgba(170,180,197,.7); }
input:focus, textarea:focus{ outline: 2px solid rgba(103,232,249,.28); outline-offset: 2px; }
.form-actions{ display:flex; gap: 10px; flex-wrap:wrap; margin-top: 8px; }

.site-footer{
  border-top: 1px solid var(--border);
  padding: 22px 0;
}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
}
.site-footer a{ color: var(--muted); text-decoration:none; }
.site-footer a:hover{ color: var(--text); }

code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: .95em;
}
.bullets{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}
.bullets li{ margin: 6px 0; }

@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .photo-frame{ height: 280px; }
  .contact-grid{ grid-template-columns: 1fr; }
  .cards-3{ grid-template-columns: 1fr; }
  .hero-stats{ grid-template-columns: 1fr; }
}

@media (max-width: 760px){
  .nav-toggle{ display:inline-flex; }
  .nav-links{
    display:none;
    position:absolute;
    right: 20px;
    top: 60px;
    width: min(520px, calc(100vw - 40px));
    padding: 10px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: rgba(12,14,18,.92);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  html[data-theme="light"] .nav-links{ background: rgba(251,251,253,.92); }
  .nav-links a{ padding: 12px 12px; }
  .nav-links.is-open{ display:flex; }
  .section{ padding: 74px 0; }
  .resume-card{ flex-direction: column; align-items: flex-start; }
  .footer-inner{ flex-direction: column; align-items: flex-start; }
}