/* ========================================
   REUSABLE COMPONENTS
   ======================================== */

/* ---- Section Tag ---- */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--purple);
  margin-bottom: 1.5rem;
}

.section-tag::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--purple);
}

/* ---- Headings ---- */
h2 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(2.25rem, 4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

h3 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

/* ---- Gradient Text ---- */
.grad-text {
  background: linear-gradient(135deg, var(--purple), var(--pink) 50%, var(--amber));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---- Buttons ---- */
.btn-grad {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: #fff;
  padding: 0.875rem 1.875rem;
  border-radius: 100px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn-grad:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.35);
}

.btn-grad:active {
  transform: translateY(0);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--text);
  padding: 0.875rem 1.875rem;
  border-radius: 100px;
  text-decoration: none;
  font-weight: 400;
  font-size: 0.9375rem;
  border: 0.5px solid var(--border-2);
  transition: background var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
  cursor: pointer;
}

.btn-outline:hover {
  background: var(--bg-3);
  border-color: var(--purple);
  transform: translateY(-2px);
}

/* ---- Chips ---- */
.chip {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  border: 0.5px solid;
  transition: transform var(--transition-fast);
}

.chip:hover {
  transform: translateY(-2px);
}

.chip-purple { color: var(--purple); border-color: rgba(139, 92, 246, 0.35); background: rgba(139, 92, 246, 0.08); }
.chip-pink { color: var(--pink); border-color: rgba(236, 72, 153, 0.35); background: rgba(236, 72, 153, 0.08); }
.chip-cyan { color: var(--cyan); border-color: rgba(34, 211, 238, 0.35); background: rgba(34, 211, 238, 0.08); }
.chip-amber { color: var(--amber); border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.08); }
.chip-green { color: var(--green); border-color: rgba(52, 211, 153, 0.35); background: rgba(52, 211, 153, 0.08); }

/* ---- Cards ---- */
.card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-2);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ---- Tags ---- */
.tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  background: var(--bg-3);
  color: var(--text-2);
  border: 0.5px solid var(--border);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.tag:hover {
  border-color: var(--purple);
  color: var(--purple);
}

/* ---- Form Elements ---- */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-3);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: 'Outfit', sans-serif;
  font-size: 0.9375rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-3);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  width: 100%;
  padding: 0.875rem;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: #fff;
  font-family: 'Outfit', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.form-submit:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.35);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ---- Social Links ---- */
.social-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.social-link:hover {
  border-color: var(--border-2);
  background: var(--bg-3);
  transform: translateX(4px);
}

.social-link i {
  font-size: 20px;
}

.sl-email i { color: var(--purple); }
.sl-github i { color: var(--text-2); }
.sl-twitter i { color: var(--cyan); }
.sl-instagram i { color: var(--pink); }

.social-sub {
  font-size: 0.8125rem;
  color: var(--text-3);
  font-weight: 400;
  margin-left: auto;
}

/* ---- Scroll Reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

/* ---- Particle Canvas ---- */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ---- Scroll to Top Button ---- */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-3);
  border: none;
  color: #fff;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-2px);
}

.scroll-top-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.scroll-top-track {
  stroke: var(--border);
}

.scroll-top-progress {
  stroke: url(#scroll-progress-grad) var(--purple);
  stroke: var(--purple);
  filter: drop-shadow(0 0 4px rgba(139, 92, 246, 0.4));
  transition: stroke-dashoffset 0.1s linear;
}

.scroll-top-icon {
  position: relative;
  z-index: 1;
  font-size: 1.125rem;
  color: var(--text-2);
}

.scroll-top:hover .scroll-top-icon {
  color: var(--text);
}