:root {
  /* Palette: three brand colors mixed across the UI */
  --green: #c4d600;        /* surfaces (halo, glow) */
  --green-text: #6e7800;   /* readable green on white */
  --orange: #ea580c;
  --blue: #2563eb;

  --bg: #e7e8ec;
  --bg-elev: #ffffff;
  --bg-elev-2: #eef0f3;
  --fg: #15181d;
  --fg-dim: #585f6a;
  --border: #d2d6dd;
  --nav-bg: rgba(231, 232, 236, 0.85);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

a {
  color: var(--blue);
  text-decoration: none;
  transition: color .15s ease;
}
a:hover { color: #000; }

h1, h2, h3 { font-weight: 600; letter-spacing: -0.01em; margin: 0 0 .6rem; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.1; }
h2 { font-size: 1.5rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.05rem; }

p { margin: 0 0 1rem; color: var(--fg); }
.muted { color: var(--fg-dim); }

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--nav-bg);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  max-width: 880px;
  margin: 0 auto;
  gap: 1rem;
}
.nav-brand {
  color: var(--fg);
  font-weight: 600;
}
.nav-brand .accent { color: var(--green-text); }
.nav-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  align-items: center;
}
.nav-links a { color: var(--fg-dim); font-size: 0.92rem; }
.nav-links a:hover { color: var(--fg); }

/* Hero — tri-color glow */
.hero {
  position: relative;
  background:
    radial-gradient(900px 520px at 15% 12%, rgba(196, 214, 0, 0.28), transparent 60%),
    radial-gradient(800px 520px at 88% 18%, rgba(234, 88, 12, 0.18), transparent 60%),
    radial-gradient(1000px 600px at 50% 95%, rgba(37, 99, 235, 0.16), transparent 60%),
    var(--bg);
}
.hero-content {
  padding-top: 6rem;
  padding-bottom: 5rem;
}
.hero h1 { margin-bottom: 0.6rem; }

.avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--bg-elev);
  box-shadow: 0 0 0 3px var(--green), 0 8px 24px rgba(0, 0, 0, 0.08);
  margin-bottom: 1.4rem;
  display: block;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--fg-dim);
  margin-bottom: 2rem;
}
.hero-tagline strong { color: var(--fg); font-weight: 500; }

/* Buttons — primary uses green-text, ghost stays neutral */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--green-text);
  border-radius: 10px;
  color: var(--green-text);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all .15s ease;
  background: transparent;
}
.btn svg {
  width: 1.05em;
  height: 1.05em;
  fill: currentColor;
  flex-shrink: 0;
}
.btn:hover {
  background: var(--green-text);
  color: var(--bg-elev);
}
.btn + .btn { margin-left: 0.5rem; }
.btn-ghost {
  border-color: var(--border);
  color: var(--fg-dim);
}
.btn-ghost:hover {
  background: var(--bg-elev);
  border-color: var(--fg-dim);
  color: var(--fg);
}

/* Sections — note specificity: section also has class="container" so we
   need section.container to beat .container's padding shorthand. */
section.container {
  padding-top: 1.25rem;
  padding-bottom: 1rem;
}
section + section {
  border-top: 1px solid var(--border);
}
section h2 { margin-top: 0; }

/* Card base — accent applied via --card-accent (rotated below) */
.role,
.project {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--card-accent, var(--green-text));
  border-radius: 10px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: transform .15s ease, box-shadow .15s ease;
}
.role:hover,
.project:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

/* Experience timeline */
.timeline { display: flex; flex-direction: column; gap: 1.2rem; }
.role {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  padding: 1rem 1.2rem;
}
.role-period {
  color: var(--fg-dim);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  padding-top: 0.15rem;
}
.role-title { font-weight: 600; }
.role-company {
  color: var(--card-accent, var(--green-text));
  font-size: 0.95rem;
}
.role-desc { color: var(--fg-dim); font-size: 0.93rem; margin-top: 0.4rem; margin-bottom: 0; }

/* Rotate accent across cards: green → orange → blue → ... */
.timeline > .role:nth-child(3n+1) { --card-accent: var(--green-text); }
.timeline > .role:nth-child(3n+2) { --card-accent: var(--orange); }
.timeline > .role:nth-child(3n)   { --card-accent: var(--blue); }

@media (max-width: 600px) {
  .role { grid-template-columns: 1fr; gap: 0.3rem; }
  .role-period { padding-top: 0; }
}

/* Projects */
.project {
  padding: 1.4rem 1.5rem;
  --card-accent: var(--orange);
}
.project-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}
.project-head h3 { margin: 0; }
.project-meta { font-size: 0.85rem; }

/* Contact */
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* Footer */
footer {
  padding: 2rem 0 3rem;
  text-align: center;
  color: var(--fg-dim);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}