:root {
  --bg-main: #090d16;
  --bg-card: #0f172a;
  --bg-card-hover: #1e293b;
  --accent-cyan: #38bdf8;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --text-main: #f8fafc;
  --text-slate-300: #cbd5e1;
  --text-slate-400: #94a3b8;
  --border-card: rgba(255, 255, 255, 0.08);
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: 'Vazirmatn', sans-serif;
  min-height: 100vh;
  padding-top: 80px;
}

.backdrop-blur {
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-card);
}

.brand-avatar {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-github {
  background: #1f2937;
  color: #fff;
  border: 1px solid #374151;
}
.btn-github:hover {
  background: #374151;
  color: #fff;
}

.hero-section {
  position: relative;
  padding: 80px 0 60px;
  overflow: hidden;
}

.hero-bg-glow {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 350px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, rgba(139, 92, 246, 0.05) 50%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent-cyan);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 10px #22c55e;
}

.skill-badge {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-card);
  color: var(--text-slate-300);
  padding: 6px 14px;
  border-radius: 12px;
  font-size: 0.85rem;
}

.filter-btn-group .btn-filter {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-card);
  color: var(--text-slate-400);
  padding: 6px 16px;
  font-size: 0.9rem;
  border-radius: 10px;
  margin: 0 3px;
  transition: all 0.2s ease;
}
.filter-btn-group .btn-filter.active,
.filter-btn-group .btn-filter:hover {
  background: var(--accent-cyan);
  color: #090d16;
  font-weight: 600;
}

.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.portfolio-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(56, 189, 248, 0.15);
}

.portfolio-img-wrapper {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: #000;
}
.portfolio-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.portfolio-card:hover .portfolio-img {
  transform: scale(1.05);
}

.portfolio-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(9, 13, 22, 0.8);
  backdrop-filter: blur(8px);
  color: var(--accent-cyan);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.portfolio-body {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.tech-tag {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-slate-400);
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 6px;
}

.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-card);
  color: var(--text-main);
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.2s ease;
}
.contact-pill:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.4);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

.form-dark {
  background: #1e293b !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  color: #fff !important;
}
.form-dark:focus {
  border-color: var(--accent-cyan) !important;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.2) !important;
}