:root {
  --bg: #08090d;
  --bg-alt: #0f1119;
  --text: #eef0f5;
  --text-muted: #9aa1b2;
  --accent: #7c9cff;
  --accent2: #b98cff;
  --accent3: #5ee0c5;
  --border: rgba(255, 255, 255, 0.08);
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.08);
  --max-width: 1120px;
  --radius: 16px;
  --gradient: linear-gradient(120deg, var(--accent), var(--accent2) 60%, var(--accent3));
}

[data-theme="light"] {
  --bg: #f7f8fc;
  --bg-alt: #ffffff;
  --text: #14151c;
  --text-muted: #5a5f6e;
  --accent: #4f6df5;
  --accent2: #9757e6;
  --accent3: #12a988;
  --border: rgba(20, 21, 28, 0.08);
  --card-bg: rgba(20, 21, 28, 0.03);
  --card-border: rgba(20, 21, 28, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  transition: background 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

h1, h2, h3, .logo {
  font-family: "Sora", "Inter", sans-serif;
  letter-spacing: -0.02em;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 2;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: none; opacity: 0.85; }

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
}

.logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}
.logo .dot { color: var(--accent); }

.nav-links {
  list-style: none;
  display: flex;
  gap: 2.2rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
  border-radius: 2px;
}

.theme-toggle {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.theme-toggle:hover { transform: rotate(15deg); border-color: var(--accent); }

/* Hero */
.hero {
  position: relative;
  padding: 8rem 1.5rem 6rem;
  text-align: left;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background:
    radial-gradient(circle at 30% 30%, color-mix(in srgb, var(--accent) 35%, transparent), transparent 60%),
    radial-gradient(circle at 70% 60%, color-mix(in srgb, var(--accent2) 30%, transparent), transparent 60%);
  filter: blur(60px);
  z-index: 0;
  pointer-events: none;
  animation: drift 14s ease-in-out infinite alternate;
}
@keyframes drift {
  0% { transform: translateX(-52%) translateY(0); }
  100% { transform: translateX(-48%) translateY(30px); }
}

.eyebrow {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin: 0 0 0.5rem;
}
.hero h1 {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  margin: 0 0 0.3rem;
  font-weight: 800;
}
.hero-role {
  font-weight: 500;
  color: var(--text-muted);
  margin: 0 0 1.4rem;
  font-size: clamp(1.1rem, 3vw, 1.35rem);
}
.role-sep { color: var(--accent); margin: 0 0.4rem; }
.hero-desc {
  max-width: 620px;
  color: var(--text-muted);
  font-size: 1.05rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  margin: 2rem 0 1.5rem;
  flex-wrap: wrap;
}
.hero-links {
  display: flex;
  gap: 1.5rem;
}

.scroll-cue {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  width: 22px;
  height: 36px;
  border: 2px solid var(--border);
  border-radius: 20px;
}
.scroll-cue span {
  display: block;
  width: 4px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  margin: 6px auto;
  animation: scrollcue 1.8s ease-in-out infinite;
}
@keyframes scrollcue {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(12px); opacity: 0; }
  100% { opacity: 0; }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 1.7rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn-primary {
  background: var(--gradient);
  color: #08090d;
  box-shadow: 0 8px 24px -8px color-mix(in srgb, var(--accent) 60%, transparent);
}
.btn-primary:hover { box-shadow: 0 12px 32px -8px color-mix(in srgb, var(--accent) 70%, transparent); }
.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-outline:hover { border-color: var(--accent); }

/* Sections */
.section { padding: 5rem 1.5rem; position: relative; z-index: 2; }
.section-eyebrow {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin: 0 0 0.6rem;
}
.section-title {
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  margin: 0 0 2rem;
  max-width: 640px;
  font-weight: 700;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  color: var(--text-muted);
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}
.skill-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.skill-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  background: color-mix(in srgb, var(--accent) 6%, var(--card-bg));
}
.skill-icon { font-size: 1.6rem; display: block; margin-bottom: 0.75rem; }
.skill-card h3 { margin: 0 0 0.75rem; font-size: 1.05rem; }
.skill-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
  font-size: 0.93rem;
}
.skill-card li { margin-bottom: 0.35rem; }

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.project-card {
  position: relative;
  border-radius: var(--radius);
  padding: 1px;
  background: linear-gradient(140deg, var(--card-border), transparent 40%);
  transition: transform 0.25s ease;
}
.project-card:hover { transform: translateY(-5px); }
.project-card:hover::before {
  opacity: 1;
}
.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  padding: 1px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.project-card-inner {
  background: var(--card-bg);
  border-radius: calc(var(--radius) - 1px);
  padding: 1.75rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(6px);
}
.project-card h3 { margin-top: 0; font-size: 1.1rem; }
.project-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  flex-grow: 1;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.9rem 0;
}
.tags span {
  background: var(--bg-alt);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.76rem;
  color: var(--text-muted);
}
.projects-more {
  margin-top: 2.5rem;
  color: var(--text-muted);
}

/* Contact */
.contact-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 3.5rem 2.5rem;
  text-align: center;
}
.contact-card .section-title { margin-left: auto; margin-right: auto; }
.contact-card p:not(.section-eyebrow) {
  color: var(--text-muted);
  max-width: 480px;
  margin: 0 auto 2rem;
}
.contact-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 2;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-glow, .scroll-cue span { animation: none; }
}

/* Responsive nav */
@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--border);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { border-top: 1px solid var(--border); }
  .nav-links a { display: block; padding: 1rem 1.5rem; }
  .hero { padding-top: 6rem; text-align: center; }
  .hero-desc { margin: 0 auto; }
  .hero-actions, .hero-links { justify-content: center; }
  .scroll-cue { display: none; }
  .contact-card { padding: 2.5rem 1.5rem; }
}