:root {
  --color-primary: #1F2937;
  --color-secondary: #374151;
  --color-accent: #64748B;
}

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

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

/* 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: translateX(-2rem);
  transition: all 0.6s ease-out;
}

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

/* Rotate animation */
.rotate-180 { 
  transform: rotate(180deg); 
}

/* Form enhancements */
.form-group {
  position: relative;
}

.form-input {
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(100, 116, 139, 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);
}

/* Loading state */
.loading {
  position: relative;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: inherit;
}

.loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid #e5e7eb;
  border-top: 2px solid var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  z-index: 1;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

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

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

.decor-diagonal {
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    var(--color-accent) 10px,
    var(--color-accent) 11px
  );
}

.decor-subtle { opacity: 0.05; }
.decor-moderate { opacity: 0.1; }
.decor-bold { opacity: 0.2; }

.decor-gradient-blur::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 10%;
  width: 30%;
  height: 40%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.1;
}

.decor-gradient-blur::after {
  content: '';
  position: absolute;
  bottom: 20%;
  right: 10%;
  width: 25%;
  height: 35%;
  background: linear-gradient(45deg, var(--color-accent), var(--color-secondary));
  border-radius: 50%;
  filter: blur(35px);
  opacity: 0.08;
}

.decor-corner-tr::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100px;
  background: linear-gradient(225deg, var(--color-accent), transparent);
  opacity: 0.1;
}

.decor-corner-bl::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100px;
  height: 100px;
  background: linear-gradient(45deg, var(--color-accent), transparent);
  opacity: 0.1;
}

/* Smooth transitions */
* {
  transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
}