@import url('variables.css');

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  text-align: center;
  border-radius: 8px;
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1.5;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-dark);
  border: 2px solid var(--color-gray);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: 1.125rem;
}

.btn-small {
  padding: var(--space-2) var(--space-4);
  font-size: 0.875rem;
}

/* Cards */
.card {
  background: var(--color-white);
  border-radius: 12px;
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-light);
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-feature {
  padding: var(--space-8);
  text-align: center;
}

.card-feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 2rem;
}

.card-stat {
  text-align: center;
  padding: var(--space-8);
}

.stat-number {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-label {
  font-size: 1rem;
  color: var(--color-gray);
  font-weight: 500;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--color-dark);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-light);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color var(--transition-base);
  background: var(--color-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  color: #ef4444;
  font-size: 0.875rem;
  margin-top: var(--space-1);
  display: none;
}

.form-group.error .form-error {
  display: block;
}

.form-group.error .form-input,
.form-group.error .form-textarea,
.form-group.error .form-select {
  border-color: #ef4444;
}

.form-success {
  background: var(--color-success);
  color: var(--color-white);
  padding: var(--space-4);
  border-radius: 8px;
  margin-bottom: var(--space-6);
  display: none;
}

.form-success.show {
  display: block;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  background: var(--color-white);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

.nav.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4);
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}

.nav-link {
  color: var(--color-dark);
  font-weight: 500;
  transition: color var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--color-accent);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-dark);
  cursor: pointer;
}

@media (max-width: 1023px) {
  .nav-toggle {
    display: block;
    min-width: 44px;
    min-height: 44px;
  }
  
  .nav-links {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-6);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    max-height: calc(100vh - 60px);
    overflow-y: auto;
  }
  
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-links li {
    width: 100%;
  }
  
  .nav-links .btn {
    width: 100%;
    margin-top: var(--space-4);
  }
}

/* Stats Display */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
  margin: var(--space-8) 0;
}