:root {
  --bg: #0b1220;
  --card: rgba(255,255,255,0.05);
  --text: #e6ebf5;
  --muted: #9aa4bf;
  --primary: #3b82f6;
  --border: rgba(255,255,255,0.1);
}

body.light {
  --bg: #f4f7fd;
  --card: rgba(0,0,0,0.04);
  --text: #0f172a;
  --muted: #475569;
  --primary: #2563eb;
  --border: rgba(0,0,0,0.08);
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(800px 400px at top, rgba(59,130,246,.15), transparent),
              var(--bg);
  color: var(--text);
  transition: .4s;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 100px 20px;
}

/* TOGGLE */
.toggle {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
}

/* HERO */
.profile-hero {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: center;
}

.photo-frame {
  padding: 14px;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(59,130,246,.2), transparent);
}

.badge {
  display: inline-block;
  padding: 6px 14px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  border-radius: 999px;
  font-size: 12px;
  color: #fff;
}

.role {
  color: var(--primary);
  margin-bottom: 12px;
}

/* BUTTON */
.profile-actions {
  margin-top: 24px;
  display: flex;
  gap: 16px;
}

.btn {
  padding: 12px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 14px;
  transition: .3s;
}

.primary {
  background: var(--primary);
  color: white;
}

.ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

/* SKILLS */
.skill-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 28px;
}

.skill-card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 24px;
  border-radius: 24px;
}

.skill-icon {
  font-size: 20px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(59,130,246,.2);
  animation: float 4s infinite ease-in-out;
}

/* EXPERIENCE */
.timeline-item {
  position: relative;
  padding-left: 24px;
  margin-bottom: 32px;
}

.dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 10px;
  height: 10px;
  background: var(--primary);
  border-radius: 50%;
}

/* REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: .8s ease;
}

.reveal.active {
  opacity: 1;
  transform: none;
}

@keyframes float {
  50% { transform: translateY(-6px); }
}

/* RESPONSIVE */
@media(max-width:900px){
  .profile-hero {
    grid-template-columns: 1fr;
  }
  .skill-grid {
    grid-template-columns: 1fr;
  }
}