:root {
  --color-primary: #2D6A4F;
  --color-primary-dark: #1B4332;
  --color-primary-light: #52B788;
  --color-grey-dark: #2D3748;
  --color-grey-mid: #718096;
  --color-grey-light: #F7FAFC;
  --color-white: #FFFFFF;
  --color-accent: #E8F5E9;
  --color-danger: #E53E3E;
  --color-success: #38A169;
}

* { box-sizing: border-box; }

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-grey-dark);
}

/* Buttons */
.btn-primary {
  display: inline-block;
  background-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
  border-radius: 8px;
  padding: 12px 28px;
  text-decoration: none;
  transition: background-color 0.2s ease;
  cursor: pointer;
  border: none;
  font-size: 15px;
  text-align: center;
}
.btn-primary:hover { background-color: var(--color-primary-dark); }

.btn-secondary {
  display: inline-block;
  background-color: transparent;
  color: var(--color-primary);
  font-weight: 600;
  border-radius: 8px;
  padding: 10px 26px;
  text-decoration: none;
  border: 2px solid var(--color-primary);
  transition: background-color 0.2s ease, color 0.2s ease;
  cursor: pointer;
  font-size: 15px;
  text-align: center;
}
.btn-secondary:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* Card */
.card {
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 32px;
}

/* Form elements */
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-grey-dark);
  margin-bottom: 6px;
}

.form-input {
  display: block;
  width: 100%;
  border: 1.5px solid #CBD5E0;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 15px;
  color: var(--color-grey-dark);
  background: var(--color-white);
  transition: border-color 0.2s;
  font-family: 'Inter', sans-serif;
  resize: vertical;
}
.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(45,106,79,0.12);
}
.form-input.error { border-color: var(--color-danger); }

.file-input {
  display: block;
  width: 100%;
  border: 1.5px dashed #CBD5E0;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--color-grey-mid);
  background: var(--color-grey-light);
  cursor: pointer;
  transition: border-color 0.2s;
}
.file-input:focus { outline: none; border-color: var(--color-primary); }
.file-input.error { border-color: var(--color-danger); }

.field-error {
  color: var(--color-danger);
  font-size: 13px;
  margin-top: 4px;
}

/* WhatsApp button */
.whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background-color: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  z-index: 100;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}
.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
}

/* Blog content */
.blog-content h1,
.blog-content h2,
.blog-content h3 { font-weight: 700; color: var(--color-grey-dark); margin: 1.5rem 0 0.75rem; }
.blog-content h2 { font-size: 1.5rem; }
.blog-content h3 { font-size: 1.25rem; }
.blog-content p { margin-bottom: 1rem; color: var(--color-grey-mid); line-height: 1.8; }
.blog-content ul, .blog-content ol { padding-left: 1.5rem; margin-bottom: 1rem; }
.blog-content li { color: var(--color-grey-mid); margin-bottom: 0.4rem; }
.blog-content strong { color: var(--color-grey-dark); }
.blog-content a { color: var(--color-primary); text-decoration: underline; }

/* FAQ chevron rotation */
.faq-item.open .faq-icon { transform: rotate(180deg); }

/* Smooth scroll */
html { scroll-behavior: smooth; }