:root {
  --bg: #07070b;
  --bg-2: #0d0d14;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f4f6;
  --muted: #8a8a99;
  --accent: #a78bfa;
  --accent-2: #38bdf8;
  --accent-3: #f472b6;
  --grad: linear-gradient(135deg, #a78bfa 0%, #38bdf8 50%, #f472b6 100%);
  --radius: 20px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Animated gradient mesh background */
.mesh-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background: var(--bg);
}
.mesh-bg::before,
.mesh-bg::after {
  content: '';
  position: absolute;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.35;
  animation: float 18s ease-in-out infinite;
}
.mesh-bg::before {
  background: radial-gradient(circle, #a78bfa, transparent 60%);
  top: -15vw; left: -15vw;
}
.mesh-bg::after {
  background: radial-gradient(circle, #38bdf8, transparent 60%);
  bottom: -15vw; right: -15vw;
  animation-delay: -9s;
}
.mesh-bg .blob-3 {
  position: absolute;
  width: 40vw; height: 40vw;
  border-radius: 50%;
  filter: blur(120px);
  background: radial-gradient(circle, #f472b6, transparent 60%);
  opacity: 0.25;
  top: 40%; left: 40%;
  animation: float 22s ease-in-out infinite -4s;
}
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(10vw, 8vh) scale(1.1); }
  66% { transform: translate(-8vw, 12vh) scale(0.95); }
}

/* Grain texture */
.grain {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  opacity: 0.4; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.3'/%3E%3C/svg%3E");
}

/* Layout */
.container { max-width: 1240px; margin: 0 auto; padding: 0 28px; }

/* Nav */
nav.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px 0;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(7, 7, 11, 0.6);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700; font-size: 1.15rem;
  letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 10px;
}
.logo-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: var(--grad);
  display: grid; place-items: center;
  font-size: 0.85rem; color: #07070b; font-weight: 800;
}
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-links a {
  color: var(--muted); text-decoration: none; font-size: 0.92rem; font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 10px 18px; border-radius: 100px;
  background: var(--text); color: #07070b !important;
  font-weight: 600 !important;
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 30px rgba(255,255,255,0.15); }
@media (max-width: 720px) { .nav-links a:not(.nav-cta) { display: none; } }

/* Hero */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 140px 0 100px;
  position: relative;
}
.hero-pill {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: 100px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  font-size: 0.82rem; color: var(--muted); font-weight: 500;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}
.hero-pill .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 12px #22c55e;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}
.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  font-weight: 700; line-height: 1.02;
  letter-spacing: -0.04em;
  margin-bottom: 28px;
}
.hero h1 .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--muted);
  max-width: 680px;
  margin-bottom: 40px;
  font-weight: 400;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 100px;
  font-weight: 600; font-size: 0.95rem;
  text-decoration: none; border: none; cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn-primary {
  background: var(--text); color: #07070b;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(255,255,255,0.18); }
.btn-ghost {
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: var(--surface-2); transform: translateY(-2px); }
.btn svg { width: 16px; height: 16px; }

/* Stats strip */
.stats-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 72px;
  border: 1px solid var(--border);
}
.stat {
  background: var(--bg-2);
  padding: 28px 24px;
  text-align: left;
}
.stat .num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.2rem; font-weight: 700; letter-spacing: -0.03em;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat .label { color: var(--muted); font-size: 0.85rem; margin-top: 6px; }
@media (max-width: 720px) {
  .stats-strip { grid-template-columns: repeat(2, 1fr); }
}

/* Section header */
section { padding: 110px 0; position: relative; }
.section-eyebrow {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 18px;
}
.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 22px;
  max-width: 820px;
}
.section-sub {
  color: var(--muted); font-size: 1.05rem;
  max-width: 640px; margin-bottom: 64px;
}

/* About / Brothers cards */
.brothers {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
@media (max-width: 880px) { .brothers { grid-template-columns: 1fr; } }
.bro-card {
  position: relative;
  padding: 36px; border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(20px);
  transition: transform 0.3s, border-color 0.3s;
  overflow: hidden;
}
.bro-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--accent) 0%, transparent 50%);
  opacity: 0; transition: opacity 0.4s;
  pointer-events: none;
}
.bro-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.bro-card:hover::before { opacity: 0.08; }
.bro-avatar {
  width: 64px; height: 64px; border-radius: 18px;
  background: var(--grad);
  display: grid; place-items: center;
  color: #07070b; font-weight: 800; font-size: 1.5rem;
  margin-bottom: 22px;
  font-family: 'Space Grotesk', sans-serif;
}
.bro-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.7rem; font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 6px;
}
.bro-role { color: var(--accent); font-size: 0.95rem; margin-bottom: 18px; font-weight: 500; }
.bro-bio { color: var(--muted); margin-bottom: 24px; font-size: 0.98rem; }
.bro-skills { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.skill-chip {
  padding: 6px 12px; border-radius: 100px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 0.78rem; color: var(--text);
  font-family: 'JetBrains Mono', monospace;
}
.bro-links { display: flex; gap: 14px; flex-wrap: wrap; }
.bro-link {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--muted); text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}
.bro-link:hover { color: var(--text); }
.bro-link svg { width: 16px; height: 16px; }

/* AI section */
.ai-section { position: relative; }
.ai-card {
  position: relative;
  padding: 80px 60px;
  border-radius: 32px;
  background:
    radial-gradient(circle at 0% 0%, rgba(167, 139, 250, 0.18), transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(56, 189, 248, 0.18), transparent 50%),
    var(--surface);
  border: 1px solid var(--border-strong);
  overflow: hidden;
  backdrop-filter: blur(30px);
}
.ai-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.ai-grid {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center;
}
@media (max-width: 880px) {
  .ai-card { padding: 48px 28px; }
  .ai-grid { grid-template-columns: 1fr; gap: 36px; }
}
.ai-headline {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 700; letter-spacing: -0.03em; line-height: 1.1;
  margin-bottom: 22px;
}
.ai-headline .grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.ai-desc { color: var(--muted); font-size: 1.05rem; margin-bottom: 30px; }
.ai-features { display: grid; gap: 16px; }
.ai-feat {
  display: flex; gap: 14px; align-items: flex-start;
}
.ai-feat .check {
  width: 24px; height: 24px; border-radius: 50%; flex-shrink: 0;
  background: var(--grad);
  display: grid; place-items: center;
  color: #07070b;
}
.ai-feat .check svg { width: 14px; height: 14px; stroke-width: 3; }
.ai-feat-text strong { display: block; margin-bottom: 2px; font-size: 0.98rem; }
.ai-feat-text span { color: var(--muted); font-size: 0.9rem; }

/* Metrics visual */
.metric-stack { display: grid; gap: 14px; }
.metric {
  padding: 22px 24px; border-radius: 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.metric-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem; color: var(--muted);
}
.metric-val {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem; font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: -0.02em;
}

/* Projects */
.proj-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
@media (max-width: 1000px) { .proj-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .proj-grid { grid-template-columns: 1fr; } }
.proj-card {
  position: relative;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  text-decoration: none; color: var(--text);
  display: flex; flex-direction: column;
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
  overflow: hidden;
  min-height: 240px;
}
.proj-card::after {
  content: ''; position: absolute; inset: -1px;
  border-radius: var(--radius);
  background: var(--grad);
  opacity: 0; z-index: -1;
  transition: opacity 0.3s;
}
.proj-card:hover {
  transform: translateY(-4px);
  border-color: transparent;
  background: var(--bg-2);
}
.proj-card:hover::after { opacity: 1; }
.proj-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 14px;
}
.proj-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: grid; place-items: center;
  color: var(--accent);
}
.proj-icon svg { width: 20px; height: 20px; }
.proj-stars {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem; color: var(--muted);
  padding: 4px 10px; border-radius: 100px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}
.proj-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem; font-weight: 600; letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.proj-desc {
  color: var(--muted); font-size: 0.92rem; flex: 1;
  margin-bottom: 20px;
}
.proj-foot {
  display: flex; justify-content: space-between; align-items: center;
}
.proj-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.proj-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; color: var(--muted);
  padding: 3px 8px; border-radius: 6px;
  background: var(--surface-2);
}
.proj-author {
  font-size: 0.75rem; color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

/* Filter */
.filter-row {
  display: flex; gap: 10px; margin-bottom: 40px; flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 18px; border-radius: 100px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: inherit; font-size: 0.88rem; font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn.active {
  background: var(--text); color: #07070b; border-color: var(--text);
}
.filter-btn:hover:not(.active) { color: var(--text); border-color: var(--border-strong); }

/* Tech stack marquee */
.stack-section { padding: 80px 0; }
.marquee {
  display: flex; gap: 60px;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: flex; gap: 60px; flex-shrink: 0;
  animation: scroll 40s linear infinite;
}
@keyframes scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee-item {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem; font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  display: flex; align-items: center; gap: 14px;
}
.marquee-item::after {
  content: '✦'; color: var(--accent); font-size: 1rem;
}

/* Contact */
.contact-card {
  padding: 60px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 0%, rgba(167, 139, 250, 0.2), transparent 60%),
    var(--surface);
  border: 1px solid var(--border-strong);
  text-align: center;
  backdrop-filter: blur(20px);
}
@media (max-width: 720px) { .contact-card { padding: 40px 24px; } }
.contact-card h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; letter-spacing: -0.03em; line-height: 1.05;
  margin-bottom: 18px;
}
.contact-card .grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.contact-card p { color: var(--muted); margin-bottom: 36px; max-width: 520px; margin-left: auto; margin-right: auto; }
.contact-emails {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  max-width: 640px; margin: 0 auto;
}
@media (max-width: 600px) { .contact-emails { grid-template-columns: 1fr; } }
.email-card {
  padding: 22px;
  border-radius: 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  text-decoration: none; color: var(--text);
  display: flex; align-items: center; gap: 14px;
  transition: transform 0.2s, border-color 0.2s;
  text-align: left;
}
.email-card:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.email-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--grad);
  display: grid; place-items: center;
  color: #07070b;
  flex-shrink: 0;
}
.email-icon svg { width: 22px; height: 22px; }
.email-name { font-weight: 600; font-size: 0.95rem; }
.email-addr { font-size: 0.82rem; color: var(--muted); font-family: 'JetBrains Mono', monospace; }

/* Footer */
footer {
  padding: 60px 0 40px;
  border-top: 1px solid var(--border);
  margin-top: 60px;
}
.foot-inner {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 20px;
}
.foot-text { color: var(--muted); font-size: 0.88rem; }
.foot-links { display: flex; gap: 20px; }
.foot-links a {
  color: var(--muted); text-decoration: none; font-size: 0.88rem;
  transition: color 0.2s;
}
.foot-links a:hover { color: var(--text); }

/* Reveal animations */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }