/* ============================================
   MODERN FORM STYLES
   ============================================ */

/* ============================================
   FORM SECTION
   ============================================ */
.form-section {
  padding: var(--spacing-xl) var(--spacing-md);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 200px);
}

/* ============================================
   FORM CARD
   ============================================ */
.form-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  padding: 50px 60px;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl), var(--shadow-colored);
  width: 100%;
  max-width: 500px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  position: relative;
  overflow: hidden;
  animation: scaleIn 0.5s ease-out;
}

.form-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  z-index: 1;
}

.form-card h2 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: var(--font-size-3xl);
  font-weight: 800;
  letter-spacing: -0.5px;
}

/* ============================================
   INPUT GROUPS
   ============================================ */
.input-group {
  margin-bottom: var(--spacing-md);
  position: relative;
}

.input-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  font-size: var(--font-size-base);
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.input-group:focus-within label {
  color: var(--primary-color);
}

/* ============================================
   INPUT FIELDS
   ============================================ */
.input-group input,
.input-group select,
.input-group textarea {
  width: 100%;
  padding: 14px 18px;
  font-size: var(--font-size-base);
  font-family: var(--font-family-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition-base);
  outline: none;
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.1);
  transform: translateY(-2px);
}

.input-group input:hover,
.input-group select:hover,
.input-group textarea:hover {
  border-color: var(--border-hover);
}

.input-group input::placeholder,
.input-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  width: 100%;
  padding: 16px 24px;
  border: none;
  border-radius: var(--radius-xl);
  font-size: var(--font-size-lg);
  font-weight: 600;
  cursor: pointer;
  margin-top: var(--spacing-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-md);
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:active {
  transform: scale(0.98);
}

.btn.primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-lg), var(--shadow-colored);
}

.btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl), var(--shadow-colored);
}

.btn.primary:active {
  transform: translateY(-1px) scale(0.98);
}

.btn.secondary {
  background: var(--gradient-secondary);
  color: #fff;
}

.btn.secondary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.btn.danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: #fff;
}

.btn.danger:hover {
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(239, 68, 68, 0.3);
}

.btn.small-btn {
  font-size: var(--font-size-sm);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  width: auto;
  margin-top: 0;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================
   FORM MESSAGES
   ============================================ */
.form-message {
  text-align: center;
  margin-top: var(--spacing-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  padding: 12px;
  border-radius: var(--radius-md);
  animation: fadeIn 0.3s ease-out;
}

.form-message.error {
  color: var(--error-color);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.form-message.success {
  color: var(--success-color);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.form-message.info {
  color: var(--primary-color);
  background: rgba(30, 64, 175, 0.1);
  border: 1px solid rgba(30, 64, 175, 0.2);
}

/* ============================================
   FORM LINKS
   ============================================ */
.link {
  text-align: center;
  margin-top: var(--spacing-lg);
  color: var(--text-secondary);
  font-size: var(--font-size-base);
}

.link a {
  color: var(--primary-color);
  font-weight: 600;
  transition: all var(--transition-fast);
  position: relative;
}

.link a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.link a:hover::after {
  width: 100%;
}

.link a:hover {
  color: var(--primary-dark);
}

/* ============================================
   MODERN TEXTAREA
   ============================================ */
.modern-textarea {
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  font-size: var(--font-size-base);
  font-family: var(--font-family-primary);
  width: 100%;
  resize: vertical;
  min-height: 120px;
  transition: all var(--transition-base);
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
}

.modern-textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.1);
  transform: translateY(-2px);
}

.modern-textarea:hover {
  border-color: var(--border-hover);
}

.modern-textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

/* ============================================
   SELECT DROPDOWN
   ============================================ */
.modern-select {
  padding: 12px 16px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-color);
  font-size: var(--font-size-base);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition-base);
  cursor: pointer;
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236366f1' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.modern-select:hover {
  border-color: var(--border-hover);
}

.modern-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.1);
}

/* ============================================
   CHECKBOX & RADIO
   ============================================ */
input[type="checkbox"],
input[type="radio"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--primary-color);
  margin-right: var(--spacing-xs);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 640px) {
  .form-card {
    padding: 40px 30px;
    margin: var(--spacing-md);
  }
  
  .form-card h2 {
    font-size: var(--font-size-2xl);
  }
  
  .input-group input,
  .input-group select,
  .input-group textarea {
    padding: 12px 16px;
    font-size: var(--font-size-sm);
  }
  
  .btn {
    padding: 14px 20px;
    font-size: var(--font-size-base);
  }
}

/* ============================================
   LOADING STATE
   ============================================ */
.btn.loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

.btn.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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