/* ── Variables ─────────────────────────────────────────────────── */
:root {
  --bg-primary:    #0a0c10;
  --bg-secondary:  #0f1117;
  --bg-tertiary:   #161b22;
  --border:        #21262d;
  --text-primary:  #e6edf3;
  --text-secondary:#8b949e;
  --accent:        #58e6d9;
  --accent-green:  #7ee787;
  --accent-amber:  #d29922;
  --radius:        8px;
  --max-width:     1200px;
  --transition:    200ms ease;
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}
a { color: inherit; text-decoration: none; }

/* ── Layout ────────────────────────────────────────────────────── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* ── Nav ───────────────────────────────────────────────────────── */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 64px; transition: background var(--transition), backdrop-filter var(--transition);
}
#nav.scrolled {
  background: rgba(10,12,16,0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 600; font-size: 18px;
  color: var(--accent); letter-spacing: 0.08em;
}
nav { display: flex; align-items: center; gap: 32px; }
nav a { font-size: 14px; color: var(--text-secondary); transition: color var(--transition); }
nav a:hover, nav a:focus { color: var(--text-primary); }
.nav-email {
  border: 1px solid var(--border);
  padding: 6px 14px; border-radius: 6px;
  font-size: 13px; color: var(--text-secondary) !important;
  transition: border-color var(--transition), color var(--transition) !important;
}
.nav-email:hover { border-color: var(--accent); color: var(--accent) !important; }

/* ── Eyebrow ───────────────────────────────────────────────────── */
.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; font-weight: 500;
  color: var(--text-secondary); letter-spacing: 0.04em;
  margin-bottom: 16px;
}

/* ── Hero ──────────────────────────────────────────────────────── */
#hero { min-height: 100vh; display: flex; align-items: center; }
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
  padding: 80px 0;
}
.hero-content { display: flex; flex-direction: column; }
h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 600; line-height: 1.15;
  letter-spacing: -0.02em; margin-bottom: 24px;
}
.hero-sub { font-size: 18px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 40px; }
.hero-ctas { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }

/* ── Buttons ───────────────────────────────────────────────────── */
.btn-primary {
  display: inline-block;
  background: var(--accent); color: #0a0c10;
  font-weight: 600; font-size: 15px;
  padding: 12px 24px; border-radius: var(--radius);
  transition: opacity var(--transition), transform var(--transition);
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-primary.btn-large { font-size: 17px; padding: 16px 32px; }
.btn-text { font-size: 15px; color: var(--text-secondary); transition: color var(--transition); }
.btn-text:hover { color: var(--text-primary); }

/* ── Hero code block ───────────────────────────────────────────── */
.hero-code {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}
.code-chrome {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  background: var(--bg-secondary); border-bottom: 1px solid var(--border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-red    { background: #ff5f57; }
.dot-yellow { background: #ffbd2e; }
.dot-green  { background: #28c840; }
.code-filename {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: var(--text-secondary); margin-left: 8px;
}
pre {
  padding: 24px 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; line-height: 1.8;
  overflow-x: auto;
}
.c-key   { color: #79c0ff; }
.c-punc  { color: var(--text-secondary); }
.c-bracket { color: var(--accent-amber); }
.c-val   { color: var(--accent-green); }
.c-prompt { color: var(--accent); display: block; margin-top: 8px; }

/* Typewriter */
.typewriter {
  display: inline-block;
  overflow: hidden; white-space: nowrap;
  width: 0;
  animation: typing 1.8s steps(25, end) 1.2s forwards;
}
.cursor { animation: blink 0.8s step-end infinite; }

@keyframes typing {
  from { width: 0; }
  to   { width: 25ch; }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── Sections shared ───────────────────────────────────────────── */
section { padding: 96px 0; }
.section-header { margin-bottom: 56px; }
.section-header h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 600; letter-spacing: -0.02em;
}

/* ── Capabilities grid ─────────────────────────────────────────── */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--border);
  gap: 1px; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden;
}
.cap-card {
  background: var(--bg-tertiary);
  padding: 32px 28px;
  border: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
  cursor: default;
}
.cap-card:hover {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent), 0 0 24px rgba(88,230,217,0.06);
  z-index: 1; position: relative;
}
.cap-num {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 28px; font-weight: 600;
  color: var(--accent); margin-bottom: 16px; line-height: 1;
}
.cap-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.cap-card p  { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }

/* ── Work grid ─────────────────────────────────────────────────── */
#work { background: var(--bg-secondary); }
.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.work-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: border-color var(--transition);
}
.work-card:hover { border-color: var(--border); }
.work-card-top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.work-name {
  font-family: 'JetBrains Mono', monospace;
  font-size: 18px; font-weight: 600; color: var(--text-primary);
}
.work-url {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px; color: var(--accent);
  transition: opacity var(--transition);
}
.work-url:hover { opacity: 0.7; }
.work-url.internal { color: var(--text-secondary); cursor: default; }
.work-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.work-tags span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--text-secondary);
  background: var(--bg-secondary); border: 1px solid var(--border);
  padding: 3px 8px; border-radius: 4px;
}
.work-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.65; }

/* ── Contact ───────────────────────────────────────────────────── */
#contact { padding: 0; }
.contact-inner {
  padding: 96px 24px 80px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 20px;
}
.contact-inner h2 { font-size: clamp(28px, 4vw, 48px); font-weight: 600; letter-spacing: -0.02em; }
.contact-sub { font-size: 18px; color: var(--text-secondary); margin-bottom: 12px; }
footer {
  border-top: 1px solid var(--border);
  padding: 24px 0; text-align: center;
}
footer p { font-size: 13px; color: var(--text-secondary); }

/* ── Animations ────────────────────────────────────────────────── */
[data-animate] { opacity: 0; transform: translateY(24px); transition: opacity 600ms ease, transform 600ms ease; }
[data-animate].visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 48px; padding: 100px 0 60px; }
  .hero-code { display: none; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  nav { gap: 20px; }
  .nav-email { display: none; }
}
@media (max-width: 640px) {
  .cap-grid { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; align-items: flex-start; }
  nav a:not(.nav-email):not(:last-child) { display: none; }
}