/**
 * Kingdom Form — Frontend Styles (Light Mode)
 * All classes prefixed with .kf- to avoid theme conflicts
 *
 * @package Kingdom_Form
 */

/* ===== Reset & Variables ===== */
.kf-wrapper *,
.kf-wrapper *::before,
.kf-wrapper *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.kf-wrapper {
  --kf-primary: #7c3aed;
  --kf-primary-dark: #5b21b6;
  --kf-primary-light: rgba(124, 58, 237, 0.08);
  --kf-primary-glow: rgba(124, 58, 237, 0.15);
  --kf-blue: #3b82f6;
  --kf-blue-dark: #1d4ed8;
  --kf-gold: #b8941e;
  --kf-gold-dark: #96790f;
  --kf-gold-light: rgba(184, 148, 30, 0.08);
  --kf-bg-page: #ffffff;
  --kf-bg-card: #ffffff;
  --kf-bg-input: #f8f9fb;
  --kf-border: #e5e7eb;
  --kf-border-focus: rgba(124, 58, 237, 0.5);
  --kf-text-primary: #1a1d26;
  --kf-text-secondary: #5c6370;
  --kf-text-muted: #9ca3af;
  --kf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --kf-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --kf-shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
  --kf-radius: 12px;
  --kf-radius-lg: 20px;
  --kf-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  font-family: inherit;
  background: var(--kf-bg-page);
  color: var(--kf-text-primary);
  line-height: 1.6;
  position: relative;
  overflow: hidden;
}

/* ===== Background grid (subtle) ===== */
.kf-bg-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(124, 58, 237, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124, 58, 237, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* ===== Container ===== */
.kf-container {
  position: relative;
  z-index: 1;
  width: 100%;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

/* ===== Header ===== */
.kf-header {
  text-align: center;
  margin-bottom: 40px;
  animation: kfFadeSlideUp 0.8s ease-out;
}

.kf-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 100px;
  background: var(--kf-primary-light);
  border: 1px solid rgba(124, 58, 237, 0.12);
  margin-bottom: 20px;
}
.kf-badge svg {
  width: 18px;
  height: 18px;
  color: var(--kf-primary);
}
.kf-badge span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--kf-primary);
}

.kf-title {
  font-family: inherit;
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  color: var(--kf-text-primary);
  line-height: 1.2;
}

.kf-subtitle {
  margin-top: 12px;
  font-size: 16px;
  color: var(--kf-text-secondary);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Stepper ===== */
.kf-stepper {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 40px;
  animation: kfFadeSlideUp 0.8s ease-out 0.15s both;
}

.kf-step {
  display: flex;
  align-items: center;
  gap: 10px;
}

.kf-step-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}
.kf-step-circle svg {
  width: 20px;
  height: 20px;
}
.kf-step-circle.completed {
  background: linear-gradient(135deg, var(--kf-primary), var(--kf-primary-dark));
  color: #fff;
  box-shadow: 0 4px 12px var(--kf-primary-glow);
}
.kf-step-circle.active {
  background: linear-gradient(135deg, var(--kf-blue), var(--kf-blue-dark));
  color: #fff;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}
.kf-step-circle.inactive {
  background: #f3f4f6;
  color: var(--kf-text-muted);
  border: 2px solid var(--kf-border);
}

.kf-step-label {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.4s ease;
}
.kf-step-label.active-label { color: var(--kf-text-primary); }
.kf-step-label.muted-label { color: var(--kf-text-muted); }

.kf-step-line {
  width: 48px;
  height: 3px;
  border-radius: 3px;
  margin: 0 8px;
  flex-shrink: 0;
  transition: background 0.5s ease;
}
.kf-step-line.done { background: linear-gradient(90deg, var(--kf-primary), var(--kf-blue)); }
.kf-step-line.pending { background: #e5e7eb; }

@media (max-width: 600px) {
  .kf-step-label { display: none; }
  .kf-step-line { width: 32px; }
}

/* ===== Pricing Cards ===== */
.kf-pricing-step {
  animation: kfFadeSlideUp 0.7s ease-out 0.3s both;
}
.kf-pricing-step.hidden { display: none; }

.kf-pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 768px) {
  .kf-pricing-grid { grid-template-columns: 1fr; gap: 20px; }
}

.kf-pricing-card {
  position: relative;
  background: var(--kf-bg-card);
  border: 2px solid var(--kf-border);
  border-radius: var(--kf-radius-lg);
  padding: 32px 24px 28px;
  text-align: center;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.kf-pricing-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.kf-pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}
.kf-pricing-card:hover::before { opacity: 1; }

.kf-pricing-card.card-blue::before { background: linear-gradient(90deg, var(--kf-blue), var(--kf-blue-dark)); }
.kf-pricing-card.card-blue:hover { border-color: rgba(59, 130, 246, 0.4); box-shadow: 0 16px 40px rgba(59, 130, 246, 0.1); }

.kf-pricing-card.card-purple { border-color: rgba(124, 58, 237, 0.3); }
.kf-pricing-card.card-purple::before { background: linear-gradient(90deg, var(--kf-primary), var(--kf-primary-dark)); opacity: 1; }
.kf-pricing-card.card-purple:hover { border-color: rgba(124, 58, 237, 0.5); box-shadow: 0 16px 40px rgba(124, 58, 237, 0.12); }

.kf-pricing-card.card-gold::before { background: linear-gradient(90deg, var(--kf-gold), var(--kf-gold-dark)); }
.kf-pricing-card.card-gold:hover { border-color: rgba(184, 148, 30, 0.4); box-shadow: 0 16px 40px rgba(184, 148, 30, 0.08); }

.kf-popular-tag {
  position: absolute;
  top: 16px; right: -28px;
  background: linear-gradient(135deg, var(--kf-primary), var(--kf-primary-dark));
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 4px 36px;
  transform: rotate(45deg);
}

.kf-pricing-icon {
  width: 52px; height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.kf-pricing-icon svg { width: 28px; height: 28px; }
.kf-pricing-icon.icon-blue { background: rgba(59, 130, 246, 0.1); color: var(--kf-blue); }
.kf-pricing-icon.icon-purple { background: var(--kf-primary-light); color: var(--kf-primary); }
.kf-pricing-icon.icon-gold { background: var(--kf-gold-light); color: var(--kf-gold); }

.kf-pricing-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--kf-text-primary);
  margin-bottom: 4px;
}

.kf-pricing-price {
  font-size: 36px;
  font-weight: 800;
  margin: 8px 0 12px;
  line-height: 1;
}
.kf-pricing-price.price-blue { color: var(--kf-blue); }
.kf-pricing-price.price-purple { color: var(--kf-primary); }
.kf-pricing-price.price-gold { color: var(--kf-gold); }

.kf-pricing-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--kf-text-secondary);
  margin-bottom: 24px;
  min-height: 60px;
}

.kf-pricing-btn {
  display: block;
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: var(--kf-radius);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.kf-pricing-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.kf-pricing-btn:hover::after { opacity: 1; }
.kf-pricing-btn:hover { transform: translateY(-1px); }

.kf-pricing-btn.btn-blue { background: linear-gradient(135deg, var(--kf-blue), var(--kf-blue-dark)); box-shadow: 0 4px 14px rgba(59, 130, 246, 0.25); }
.kf-pricing-btn.btn-purple { background: linear-gradient(135deg, var(--kf-primary), var(--kf-primary-dark)); box-shadow: 0 4px 14px var(--kf-primary-glow); }
.kf-pricing-btn.btn-gold { background: linear-gradient(135deg, var(--kf-gold), var(--kf-gold-dark)); box-shadow: 0 4px 14px rgba(184, 148, 30, 0.25); }

/* ===== Form Step ===== */
.kf-form-step { display: none; }
.kf-form-step.visible {
  display: block;
  animation: kfFadeSlideUp 0.7s ease-out;
}

.kf-form-card {
  background: var(--kf-bg-card);
  border: 1px solid var(--kf-border);
  border-radius: var(--kf-radius-lg);
  padding: 48px;
  box-shadow: var(--kf-shadow-lg);
  position: relative;
  overflow: hidden;
}
.kf-form-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--kf-primary), var(--kf-blue));
}
@media (max-width: 768px) {
  .kf-form-card { padding: 28px 20px; }
}

/* Package Banner */
.kf-pkg-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-radius: var(--kf-radius);
  margin-bottom: 36px;
  border: 1px solid var(--kf-border);
  background: var(--kf-bg-input);
}
.kf-pkg-info {
  display: flex;
  align-items: center;
  gap: 12px;
}
.kf-pkg-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--kf-primary-light);
  color: var(--kf-primary);
}
.kf-pkg-icon svg { width: 22px; height: 22px; }
.kf-pkg-name { font-size: 15px; font-weight: 700; color: var(--kf-text-primary); }
.kf-pkg-price { font-size: 13px; font-weight: 500; color: var(--kf-text-secondary); }
.kf-pkg-change-btn {
  background: transparent;
  border: 1px solid var(--kf-border);
  color: var(--kf-text-secondary);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--kf-transition);
}
.kf-pkg-change-btn:hover {
  border-color: var(--kf-primary);
  color: var(--kf-primary);
  background: var(--kf-primary-light);
}

/* ===== Sections ===== */
.kf-section { margin-bottom: 40px; }

.kf-section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--kf-text-primary);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--kf-border);
}
.kf-section-title svg {
  width: 22px; height: 22px;
  flex-shrink: 0;
}
.kf-section-title .icon-purple { color: var(--kf-primary); }
.kf-section-title .icon-blue { color: var(--kf-blue); }
.kf-section-title .icon-gold { color: var(--kf-gold); }

/* ===== Form Grid ===== */
.kf-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.kf-form-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
@media (max-width: 768px) {
  .kf-form-grid { grid-template-columns: 1fr; }
  .kf-form-grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .kf-form-grid-4 { grid-template-columns: 1fr; }
}

/* ===== Fields ===== */
.kf-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.kf-field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--kf-text-secondary);
  letter-spacing: 0.3px;
}
.kf-field label.required { color: var(--kf-text-primary); }
.kf-field label.required::after {
  content: ' *';
  color: var(--kf-primary);
  font-weight: 700;
}

.kf-field input,
.kf-field textarea,
.kf-field select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--kf-border);
  border-radius: var(--kf-radius);
  background: var(--kf-bg-input);
  color: var(--kf-text-primary);
  font-family: inherit;
  font-size: 14px;
  transition: var(--kf-transition);
  outline: none;
}
.kf-field input::placeholder,
.kf-field textarea::placeholder { color: var(--kf-text-muted); }

.kf-field input:hover,
.kf-field textarea:hover,
.kf-field select:hover {
  border-color: #d1d5db;
  background: #fff;
}
.kf-field input:focus,
.kf-field textarea:focus,
.kf-field select:focus {
  border-color: var(--kf-border-focus);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.08);
}
.kf-field textarea { resize: none; min-height: 80px; }
.kf-field select {
  appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%239ca3af' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 6l3.5 4 3.5-4z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.kf-field select option { background: #fff; color: var(--kf-text-primary); }

/* ===== Chips ===== */
.kf-chip-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--kf-text-secondary);
  display: block;
}
.kf-chip-title-primary { color: var(--kf-text-primary); }

.kf-chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}
.kf-chip { position: relative; cursor: pointer; }
.kf-chip input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
}
.kf-chip-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--kf-bg-input);
  border: 1px solid var(--kf-border);
  font-size: 13px;
  font-weight: 500;
  color: var(--kf-text-secondary);
  transition: var(--kf-transition);
  user-select: none;
}
.kf-chip-label::before {
  content: '';
  width: 16px; height: 16px;
  border-radius: 4px;
  border: 2px solid #d1d5db;
  transition: var(--kf-transition);
  flex-shrink: 0;
}
.kf-chip:hover .kf-chip-label {
  border-color: rgba(124, 58, 237, 0.3);
  background: rgba(124, 58, 237, 0.03);
}
.kf-chip input:checked + .kf-chip-label {
  border-color: var(--kf-primary);
  background: var(--kf-primary-light);
  color: var(--kf-text-primary);
}
.kf-chip input:checked + .kf-chip-label::before {
  background: var(--kf-primary);
  border-color: var(--kf-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='white' viewBox='0 0 16 16'%3E%3Cpath d='M13.485 3.929a1 1 0 0 1 .086 1.406l-6 7a1 1 0 0 1-1.48.055l-3-3a1 1 0 1 1 1.414-1.414L6.77 10.24l5.309-6.225a1 1 0 0 1 1.406-.086z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

/* ===== Helpers ===== */
.kf-mt-20 { margin-top: 20px; }
.kf-mt-24 { margin-top: 24px; }

/* ===== Action Buttons ===== */
.kf-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  margin-top: 16px;
  border-top: 1px solid var(--kf-border);
}

.kf-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 14px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--kf-transition);
  border: none;
  outline: none;
}
.kf-btn svg { width: 18px; height: 18px; }

.kf-btn-ghost {
  background: transparent;
  color: var(--kf-text-secondary);
  border: 1px solid var(--kf-border);
}
.kf-btn-ghost:hover {
  background: var(--kf-bg-input);
  border-color: #d1d5db;
  color: var(--kf-text-primary);
}

.kf-btn-primary {
  background: linear-gradient(135deg, var(--kf-primary), var(--kf-primary-dark));
  color: #fff;
  font-size: 15px;
  padding: 16px 36px;
  box-shadow: 0 4px 20px var(--kf-primary-glow);
  position: relative;
  overflow: hidden;
}
.kf-btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: var(--kf-transition);
}
.kf-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.3);
}
.kf-btn-primary:hover::before { opacity: 1; }
.kf-btn-primary:active { transform: translateY(0); }
.kf-btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

@media (max-width: 500px) {
  .kf-btn-primary { padding: 14px 20px; font-size: 14px; }
  .kf-btn-ghost { padding: 12px 18px; }
}

/* ===== Loading Overlay ===== */
.kf-loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}
.kf-spinner {
  width: 48px; height: 48px;
  border: 4px solid rgba(124, 58, 237, 0.15);
  border-top-color: var(--kf-primary);
  border-radius: 50%;
  animation: kfSpin 0.8s linear infinite;
}

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

/* ===== Success Step ===== */
.kf-success-step .kf-form-card {
  animation: kfFadeSlideUp 0.7s ease-out;
}

/* ===== Animations ===== */
@keyframes kfFadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes kfFadeOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-16px); }
}