:root {
  --color-primary: #1A1A1A;
  --color-secondary: #404040;
  --color-accent: #111111;
}

html { 
  scroll-behavior: smooth; 
  scroll-padding-top: 5rem; 
}

body { 
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif; 
}

/* Header scroll effects */
#main-header.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  color: #1f2937;
}

#main-header.scrolled a {
  color: #1f2937;
}

#main-header.scrolled a:hover {
  color: #374151;
}

/* Button fixes */
button, .btn, [class*="btn-"], a[href="#consultation_form"] {
  white-space: nowrap;
  min-width: fit-content;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

form button[type="submit"] {
  white-space: normal;
  width: 100%;
}

/* Animations */
[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.rotate-180 { 
  transform: rotate(180deg); 
}

/* Decorative elements */
.decor-grid-dots {
  background-image: radial-gradient(circle, currentColor 1px, transparent 1px);
  background-size: 20px 20px;
}

.decor-grid-lines {
  background-image: 
    linear-gradient(currentColor 1px, transparent 1px),
    linear-gradient(90deg, currentColor 1px, transparent 1px);
  background-size: 20px 20px;
}

.decor-diagonal {
  background-image: repeating-linear-gradient(
    45deg,
    currentColor 0px,
    currentColor 1px,
    transparent 1px,
    transparent 15px
  );
}

.decor-gradient-blur::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 30%, currentColor 0%, transparent 70%),
              radial-gradient(circle at 80% 70%, currentColor 0%, transparent 70%);
  filter: blur(40px);
  opacity: 0.1;
}

.decor-corner-tr::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100px;
  background: linear-gradient(-45deg, currentColor 0%, transparent 70%);
  opacity: 0.05;
}

.decor-corner-bl::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 100px;
  background: linear-gradient(45deg, currentColor 0%, transparent 70%);
  opacity: 0.05;
}

.decor-subtle {
  opacity: 0.05;
}

.decor-moderate {
  opacity: 0.1;
}

.decor-bold {
  opacity: 0.2;
}

.decor-rings-svg {
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg stroke='currentColor' stroke-width='1'%3E%3Ccircle cx='30' cy='30' r='15'/%3E%3Ccircle cx='30' cy='30' r='25'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* Form styling */
.form-input {
  appearance: none;
  background-color: white;
  border: 1px solid #d1d5db;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(17, 17, 17, 0.1);
}

.form-error {
  border-color: #ef4444;
}

.form-error:focus {
  border-color: #ef4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}