:root {
  --bg: #070b15;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-strong: rgba(255, 255, 255, 0.08);
  --text: #e6e9f0;
  --muted: #a8b2c5;
  --accent: #68d5ff;
  --accent-2: #9b8cff;
  --shadow: 0 10px 40px rgba(5, 10, 30, 0.35);
}

[data-theme="light"] {
  --bg: #f5f7fb;
  --panel: rgba(0, 6, 26, 0.04);
  --panel-strong: rgba(0, 6, 26, 0.08);
  --text: #0f1628;
  --muted: #4f5d75;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Space Grotesk", "Manrope", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

.background-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
}

.floating-blobs span {
  position: fixed;
  width: 360px;
  height: 360px;
  filter: blur(120px);
  opacity: 0.45;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--accent), transparent 55%);
  animation: float 16s ease-in-out infinite;
  mix-blend-mode: screen;
  z-index: 0;
}
.floating-blobs span:nth-child(2) {
  left: 60%;
  top: 10%;
  animation-delay: -4s;
  background: radial-gradient(circle at 60% 40%, var(--accent-2), transparent 55%);
}
.floating-blobs span:nth-child(3) {
  left: 20%;
  top: 60%;
  animation-delay: -8s;
  background: radial-gradient(circle at 40% 40%, #35f8c7, transparent 55%);
}
@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-40px, -10px, 0) scale(1.1); }
}

a { color: inherit; text-decoration: none; }

.top-nav {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 32px;
  backdrop-filter: blur(12px);
  background: rgba(7, 11, 21, 0.65);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 10;
}
[data-theme="light"] .top-nav { background: rgba(245, 247, 251, 0.82); }

.logo { font-weight: 700; letter-spacing: -0.02em; font-size: 18px; }
.logo span { color: var(--accent); margin-left: 4px; }

nav { display: flex; gap: 18px; align-items: center; }
nav a { padding: 10px 12px; border-radius: 10px; color: var(--muted); transition: color 0.2s, background 0.2s; }
nav a:hover { color: var(--text); background: var(--panel); }

.theme-toggle {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text);
  border-radius: 12px;
  padding: 8px 10px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.theme-toggle span { display: inline-block; }

main { position: relative; z-index: 1; padding: 32px clamp(18px, 4vw, 64px) 80px; max-width: 1200px; margin: 0 auto; }

.hero {
  padding: 80px 0 60px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.02em;
}
.headline { font-size: clamp(40px, 7vw, 68px); line-height: 1.05; letter-spacing: -0.04em; margin: 16px 0; }
.lede { max-width: 640px; color: var(--muted); font-size: 18px; line-height: 1.6; }
.hero-actions { display: flex; gap: 12px; margin: 28px 0 20px; flex-wrap: wrap; }
.hero-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 18px; margin-top: 30px; }
.stat { background: var(--panel); padding: 16px 14px; border-radius: 14px; border: 1px solid rgba(255,255,255,0.06); box-shadow: var(--shadow); }
.value { display: block; font-size: 34px; font-weight: 700; letter-spacing: -0.02em; color: var(--accent); }
.label { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s, color 0.2s;
}
.button.primary {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #02040a;
  box-shadow: 0 10px 30px rgba(104, 213, 255, 0.35);
}
.button.ghost {
  background: var(--panel);
  color: var(--text);
  border-color: rgba(255,255,255,0.08);
}
.button:hover { transform: translateY(-2px); }

.section { margin: 70px 0; }
.section-header { max-width: 720px; margin-bottom: 30px; }
.eyebrow { color: var(--accent); letter-spacing: 0.18em; text-transform: uppercase; font-size: 12px; margin: 0 0 6px; }
.section h2 { margin: 0 0 10px; font-size: clamp(32px, 4vw, 44px); letter-spacing: -0.02em; }
.muted { color: var(--muted); line-height: 1.6; margin: 0; }

.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.card {
  background: var(--panel);
  padding: 20px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,0.08), transparent 35%);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}
.card:hover::after { opacity: 1; }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.card h3 { margin: 10px 0 10px; font-size: 22px; }
.card .tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tags span { padding: 6px 10px; border-radius: 999px; background: var(--panel-strong); color: var(--muted); font-size: 13px; }
.chip { padding: 8px 12px; border-radius: 999px; background: var(--panel-strong); font-size: 12px; color: var(--muted); }

.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.skill-card {
  background: linear-gradient(145deg, var(--panel), var(--panel-strong));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.skill-head { display: flex; align-items: center; justify-content: space-between; }
.score { color: var(--accent); font-weight: 700; }
.progress { height: 8px; background: rgba(255,255,255,0.06); border-radius: 999px; overflow: hidden; margin: 16px 0; }
.progress span { display: block; height: 100%; background: linear-gradient(120deg, var(--accent), var(--accent-2)); border-radius: 999px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chips span { background: var(--panel-strong); padding: 6px 10px; border-radius: 12px; color: var(--muted); font-size: 13px; }

.about { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); align-items: start; }
.about-text h2 { margin: 0 0 10px; font-size: clamp(30px, 4vw, 40px); }
.about .mini-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-top: 14px; }
.timeline { display: grid; gap: 12px; }
.timeline-item { background: var(--panel); padding: 16px; border-radius: 14px; border: 1px solid rgba(255,255,255,0.06); box-shadow: var(--shadow); }
.timeline-item h3 { margin: 4px 0; }

.contact-card {
  background: linear-gradient(135deg, rgba(104,213,255,0.12), rgba(155,140,255,0.12));
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 20px;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  box-shadow: var(--shadow);
}
.contact-links { display: flex; gap: 12px; margin-top: 14px; flex-wrap: wrap; }
.contact-form { display: grid; gap: 12px; }
.contact-form label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 14px; }
.contact-form input, .contact-form textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 10px 12px;
  color: var(--text);
  font: inherit;
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form-note { color: var(--muted); font-size: 12px; margin: 0; }

[data-theme="light"] .card,
[data-theme="light"] .skill-card,
[data-theme="light"] .timeline-item,
[data-theme="light"] .stat {
  border-color: rgba(0,0,0,0.06);
}
[data-theme="light"] .contact-card { border-color: rgba(0,0,0,0.08); }

[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-reveal].visible { opacity: 1; transform: translateY(0); }

.tilt { transition: transform 0.25s ease; }
.tilt:hover { transform: translateY(-4px); }

.blog-page, .post-page { position: relative; z-index: 1; padding: 32px clamp(18px, 4vw, 64px) 80px; max-width: 960px; margin: 0 auto; }
.blog-hero { margin: 40px 0 24px; }
.blog-hero h1 { margin: 8px 0; font-size: clamp(34px, 5vw, 48px); letter-spacing: -0.02em; }
.posts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.post-card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.post-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.12); }
.post-card h3 { margin: 0; font-size: 20px; }
.post-card .post-date { color: var(--muted); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; }
.post-card .post-summary { color: var(--muted); margin: 0; }
.post-card .post-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.post-card .post-tags span { background: var(--panel-strong); color: var(--muted); padding: 6px 10px; border-radius: 10px; font-size: 12px; }

.post-card-full {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 18px;
  padding: clamp(18px, 4vw, 32px);
  box-shadow: var(--shadow);
  margin-top: 32px;
}
.post-meta { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.back-link { color: var(--accent); font-weight: 600; }
.post-card-full h1 { margin: 8px 0 12px; font-size: clamp(32px, 5vw, 44px); letter-spacing: -0.02em; }
.post-body { color: var(--text); line-height: 1.8; }
.post-body h2, .post-body h3, .post-body h4 { margin-top: 26px; margin-bottom: 12px; }
.post-body p { margin: 0 0 16px; color: var(--text); }
.post-body ul { padding-left: 18px; color: var(--text); }
.post-body li { margin-bottom: 10px; }
.post-body code { background: rgba(255,255,255,0.08); padding: 2px 6px; border-radius: 6px; font-size: 14px; }
.post-body pre { background: rgba(0,0,0,0.35); border: 1px solid rgba(255,255,255,0.08); padding: 14px; border-radius: 12px; overflow-x: auto; }
.post-body pre code { background: transparent; padding: 0; }
.post-body a { color: var(--accent); }

@media (max-width: 760px) {
  .top-nav { gap: 12px; padding: 14px 20px; }
  nav { gap: 10px; font-size: 14px; }
  .hero { padding-top: 50px; }
  .headline { font-size: 38px; }
  .contact-card { padding: 18px; }
}