h1, h2, h3, h4, h5, h6 { margin: 0 0 var(--space-12); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(28px, 4vw, 44px); }
h2 { font-size: clamp(22px, 3.2vw, 32px); }
h3 { font-size: clamp(18px, 2.6vw, 24px); }
p { margin: 0 0 var(--space-12); color: var(--text-2); }
a { color: #c6cbff; text-decoration: none; }
a:hover { text-decoration: underline; }
ul { margin: 0; padding-left: 20px; }
label { display: inline-block; margin-bottom: 6px; }
input, select, textarea {
  width: 100%; 
  padding: 12px 14px; 
  border-radius: 12px; 
  border: 1px solid rgba(139, 92, 246, 0.3);
  background: rgba(255, 255, 255, 0.05); 
  color: var(--text-1);
  transition: all 0.3s ease;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: rgba(139, 92, 246, 0.6);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}
input::placeholder, textarea::placeholder { color: var(--text-3); }
small.form__hint { color: var(--text-3); display: block; margin-top: 6px; }

/* Form Layout CSS cho trang liên hệ */
.form {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(168, 85, 247, 0.1) 100%);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 20px;
  padding: 32px;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.2);
}

.form__grid {
  display: grid;
  gap: 20px;
  margin-bottom: 24px;
}

@media (min-width: 768px) {
  .form__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form__field {
  display: flex;
  flex-direction: column;
}

.form__field--full {
  grid-column: 1 / -1;
}

.form__field label {
  color: var(--text-1);
  font-weight: 600;
  margin-bottom: 8px;
}

.form__field input,
.form__field select,
.form__field textarea {
  margin: 0;
}

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