/* ===== Base ===== */
html { scroll-behavior: smooth; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Lato", -apple-system, "PingFang HK", "Microsoft JhengHei", sans-serif;
  color: #555;
  background: #ffffff;
  line-height: 1.7;
}
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }
h2 { font-size: 1.6rem; margin-bottom: 24px; color: #333; letter-spacing: .5px; }
h3 { color: #333; margin-bottom: 8px; }

/* ===== Hero (dark) ===== */
.hero {
  background: #2c2c2c;
  color: #fff;
  padding: 48px 24px;
}
.hero-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 28px;
}
.hero-avatar-wrap { position: relative; width: 116px; height: 116px; flex-shrink: 0; }
.hero-avatar-fallback {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #3a3a3a, #6a6a6a);
  border: 4px solid #fff;
  border-radius: 50%;
  color: #fff; font-size: 2.2rem; font-weight: 700; letter-spacing: 2px;
}
.hero-avatar {
  position: relative;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid #fff;
  width: 116px; height: 116px;
  display: block;
}

.hero-text h1 {
  font-size: 2.4rem;
  font-weight: 300;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: #fff;
}
.hero-title { margin-top: 6px; font-size: .95rem; color: #bdbdbd; letter-spacing: 1px; }
.hero-tagline { margin-top: 14px; font-size: 1.1rem; color: #e0e0e0; }

/* ===== Navigation (colour) ===== */
.navbar {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
}
.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 18px 8px;
  color: #fff;
  text-decoration: none;
  font-size: .85rem;
  letter-spacing: 1px;
  transition: filter .2s, transform .2s;
}
.nav-item:hover { filter: brightness(1.1); transform: translateY(-2px); }
.nav-ico { font-size: 1.3rem; }
.nav-home { background: #27ae60; }
.nav-about { background: #16a085; }
.nav-services { background: #9b59b6; }
.nav-experience { background: #e67e22; }
.nav-creds { background: #e74c3c; }
.nav-contact { background: #f1c40f; color: #4a4a4a; }

/* ===== About ===== */
.about { padding: 56px 24px; background: #fff; }
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
  align-items: start;
}
.about-sub { color: #c0392b; font-size: .95rem; letter-spacing: 1px; margin-bottom: 28px; }
.features { display: grid; gap: 20px; }
.feature { display: flex; gap: 14px; align-items: flex-start; }
.feat-ico {
  font-size: 1.5rem;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid #ddd;
  color: #9b59b6;
  border-radius: 6px;
  flex-shrink: 0;
}
.feature p { font-size: .95rem; color: #666; }

/* ===== Profile card ===== */
.profile-card {
  background: #f7f7f7;
  border: 1px solid #eee;
  padding: 24px;
  border-radius: 4px;
}
.profile-list { list-style: none; }
.profile-list li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #e3e3e3;
  font-size: .95rem;
}
.profile-list li:last-child { border-bottom: none; }
.plabel { color: #9b59b6; font-weight: 700; letter-spacing: 1px; }

/* ===== Services ===== */
.services { padding: 56px 24px; background: #fbfbfb; }
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.service-card {
  background: #fff;
  border: 1px solid #eee;
  border-top: 4px solid #9b59b6;
  padding: 24px;
  border-radius: 4px;
  transition: box-shadow .2s, transform .2s;
}
.service-card:hover { box-shadow: 0 8px 24px rgba(0,0,0,.08); transform: translateY(-3px); }
.svc-ico { font-size: 1.6rem; color: #9b59b6; }
.service-card p { color: #666; font-size: .95rem; }

/* ===== Experience (purple) ===== */
.experience { background: #9b59b6; color: #fff; padding: 56px 24px; }
.experience h2, .experience h3 { color: #fff; }
.exp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.timeline { list-style: none; }
.timeline li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,.25);
  color: #f0e6f6;
}
.creds { list-style: none; }
.creds li {
  background: rgba(255,255,255,.12);
  border-radius: 4px;
  padding: 8px 14px;
  margin-bottom: 8px;
  font-size: .92rem;
  color: #fef;
}

/* ===== Credentials (blue) ===== */
.skills { background: #3498db; color: #fff; padding: 56px 24px; }
.skills h2 { color: #fff; }
.skill-chips { display: flex; flex-wrap: wrap; gap: 12px; }
.chip {
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 999px;
  padding: 10px 22px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #fff;
}

/* ===== Contact ===== */
footer { background: #2c2c2c; color: #fff; text-align: center; padding: 48px 24px; }
footer h2 { color: #fff; }
footer a { color: #f1c40f; text-decoration: none; }
footer a:hover { text-decoration: underline; }
footer .copy { margin-top: 16px; color: #7a7a7a; font-size: .85rem; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero-inner { flex-direction: column; text-align: center; }
  .hero-text h1 { font-size: 1.9rem; }
  .about-grid { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .exp-grid { grid-template-columns: 1fr; }
  .navbar { grid-template-columns: repeat(3, 1fr); }
}