/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --c-primary: #4F46E5;
  --c-primary-light: #818CF8;
  --c-primary-dark: #3730A3;
  --c-accent: #F59E0B;
  --c-accent-light: #FCD34D;
  --c-success: #10B981;
  --c-success-light: #D1FAE5;
  --c-danger: #EF4444;
  --c-gray-50: #F9FAFB;
  --c-gray-100: #F3F4F6;
  --c-gray-200: #E5E7EB;
  --c-gray-300: #D1D5DB;
  --c-gray-400: #9CA3AF;
  --c-gray-500: #6B7280;
  --c-gray-600: #4B5563;
  --c-gray-700: #374151;
  --c-gray-800: #1F2937;
  --c-gray-900: #111827;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --max-width: 1200px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--c-gray-800);
  background: var(--c-gray-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--c-primary);
  text-decoration: none;
}

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

img {
  max-width: 100%;
}

/* ===== Utility ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-sans);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  line-height: 1.4;
}

.btn-primary {
  background: var(--c-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--c-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-accent {
  background: var(--c-accent);
  color: #fff;
}

.btn-accent:hover {
  background: #D97706;
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

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

.btn-outline:hover {
  background: var(--c-primary);
  color: #fff;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 17px;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  font-size: 32px;
  font-weight: 700;
  color: var(--c-gray-900);
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  font-size: 16px;
  color: var(--c-gray-500);
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-gray-200);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--c-gray-900);
  text-decoration: none;
}

.nav-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--c-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-gray-600);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--c-primary);
}

.nav-cta {
  padding: 8px 20px;
  font-size: 14px;
  color: #fff !important;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  color: var(--c-gray-700);
}

/* Mobile nav (hidden on desktop) */
.nav-mobile {
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--c-gray-200);
  background: #fff;
  padding: 8px 24px 16px;
}

/* ===== Hero ===== */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, #EEF2FF 0%, #ffffff 100%);
  overflow: hidden;
}

.hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: var(--c-gray-900);
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--c-gray-500);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 64px;
}

.hero-tagline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.hero-tagline-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--c-gray-500);
}

.hero-tagline-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ===== Steps / How it works ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-card {
  background: #fff;
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: all 0.2s;
  position: relative;
}

.step-card:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow);
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--c-gray-900);
  margin-bottom: 10px;
}

.step-card p {
  font-size: 14px;
  color: var(--c-gray-500);
  line-height: 1.7;
}

.step-arrow {
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--c-gray-300);
  font-size: 24px;
}

.steps-grid .step-card:last-child .step-arrow {
  display: none;
}

/* ===== Pricing ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: #fff;
  border: 2px solid var(--c-gray-200);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  position: relative;
  transition: all 0.2s;
}

.pricing-card:hover {
  border-color: var(--c-primary-light);
  box-shadow: var(--shadow);
}

.pricing-card.featured {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 1px var(--c-primary);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
  white-space: nowrap;
}

.pricing-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-gray-900);
  margin-bottom: 4px;
}

.pricing-desc {
  font-size: 14px;
  color: var(--c-gray-500);
  margin-bottom: 24px;
}

.pricing-price {
  font-size: 40px;
  font-weight: 800;
  color: var(--c-gray-900);
  margin-bottom: 4px;
}

.pricing-price .currency {
  font-size: 20px;
  font-weight: 600;
  vertical-align: super;
}

.pricing-price .period {
  font-size: 14px;
  font-weight: 400;
  color: var(--c-gray-400);
}

.pricing-features {
  list-style: none;
  margin: 24px 0 32px;
  padding: 0;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--c-gray-600);
  padding: 6px 0;
}

.pricing-features li svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius);
  margin-bottom: 12px;
  background: #fff;
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-gray-800);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-sans);
}

.faq-question:hover {
  background: var(--c-gray-50);
}

.faq-arrow {
  transition: transform 0.2s;
  flex-shrink: 0;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 24px 18px;
  font-size: 14px;
  color: var(--c-gray-500);
  line-height: 1.8;
}

/* ===== Create Page Styles ===== */
.create-page {
  padding-top: 88px;
  min-height: 100vh;
  background: linear-gradient(180deg, #EEF2FF 0%, #ffffff 40%);
}

.create-container {
  max-width: 680px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.create-header {
  text-align: center;
  margin-bottom: 40px;
}

.create-header h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--c-gray-900);
  margin-bottom: 8px;
}

.create-header p {
  font-size: 15px;
  color: var(--c-gray-500);
}

/* Progress Steps */
.progress-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 48px;
}

.progress-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--c-gray-400);
  font-weight: 500;
}

.progress-step.active {
  color: var(--c-primary);
}

.progress-step.done {
  color: var(--c-success);
}

.progress-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--c-gray-300);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  transition: all 0.2s;
}

.progress-step.active .progress-dot {
  border-color: var(--c-primary);
  background: var(--c-primary);
  color: #fff;
}

.progress-step.done .progress-dot {
  border-color: var(--c-success);
  background: var(--c-success);
  color: #fff;
}

.progress-line {
  width: 60px;
  height: 2px;
  background: var(--c-gray-200);
  margin: 0 12px;
}

.progress-line.done {
  background: var(--c-success);
}

/* Form Card */
.form-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-gray-200);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.form-step {
  display: none;
}

.form-step.active {
  display: block;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-gray-700);
  margin-bottom: 8px;
}

.form-label .hint {
  font-weight: 400;
  color: var(--c-gray-400);
  font-size: 13px;
}

.form-textarea {
  width: 100%;
  min-height: 180px;
  padding: 16px;
  border: 2px solid var(--c-gray-200);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--c-gray-800);
  resize: vertical;
  transition: border-color 0.2s;
  line-height: 1.7;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--c-primary);
}

.form-textarea::placeholder {
  color: var(--c-gray-400);
}

.form-counter {
  text-align: right;
  font-size: 12px;
  color: var(--c-gray-400);
  margin-top: 6px;
}

.form-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.form-example-tag {
  padding: 4px 12px;
  border: 1px solid var(--c-gray-200);
  border-radius: 20px;
  font-size: 12px;
  color: var(--c-gray-500);
  cursor: pointer;
  background: var(--c-gray-50);
  transition: all 0.2s;
}

.form-example-tag:hover {
  border-color: var(--c-primary-light);
  color: var(--c-primary);
  background: #EEF2FF;
}

/* Package Selection */
.package-options {
  display: grid;
  gap: 16px;
}

.package-option {
  border: 2px solid var(--c-gray-200);
  border-radius: var(--radius);
  padding: 20px 24px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 20px;
}

.package-option:hover {
  border-color: var(--c-primary-light);
}

.package-option.selected {
  border-color: var(--c-primary);
  background: #EEF2FF;
}

.package-radio {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--c-gray-300);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.package-option.selected .package-radio {
  border-color: var(--c-primary);
}

.package-radio-inner {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: transparent;
  transition: all 0.2s;
}

.package-option.selected .package-radio-inner {
  background: var(--c-primary);
}

.package-info {
  flex: 1;
}

.package-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-gray-900);
}

.package-price {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-primary);
  margin-left: auto;
  flex-shrink: 0;
}

.package-price .unit {
  font-size: 13px;
  font-weight: 400;
  color: var(--c-gray-400);
}

.package-desc {
  font-size: 13px;
  color: var(--c-gray-500);
  margin-top: 2px;
}

/* Contact Info */
.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--c-gray-200);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--c-gray-800);
  transition: border-color 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--c-primary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Payment */
.payment-qr {
  text-align: center;
  padding: 32px 0;
}

.payment-qr-placeholder {
  width: 200px;
  height: 200px;
  background: var(--c-gray-100);
  border: 2px dashed var(--c-gray-300);
  border-radius: var(--radius);
  margin: 0 auto 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--c-gray-400);
  font-size: 14px;
  gap: 8px;
}

.payment-amount {
  font-size: 36px;
  font-weight: 800;
  color: var(--c-gray-900);
  margin-bottom: 8px;
}

.payment-amount .currency {
  font-size: 18px;
  font-weight: 600;
}

/* Order Complete */
.order-complete {
  text-align: center;
  padding: 20px 0;
}

.order-complete-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--c-success-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.order-id-box {
  background: var(--c-gray-50);
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius);
  padding: 16px;
  margin: 20px auto;
  display: inline-block;
}

.order-id-box span {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-primary);
  font-family: monospace;
  letter-spacing: 2px;
}

.order-next-steps {
  text-align: left;
  background: var(--c-gray-50);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 24px;
}

.order-next-steps h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-gray-700);
  margin-bottom: 12px;
}

.order-next-steps ol {
  padding-left: 20px;
}

.order-next-steps li {
  font-size: 14px;
  color: var(--c-gray-600);
  padding: 4px 0;
}

/* ===== Order Page ===== */
.order-page {
  padding-top: 88px;
  min-height: 100vh;
}

.order-lookup {
  max-width: 500px;
  margin: 0 auto 40px;
  display: flex;
  gap: 12px;
}

.order-lookup input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--c-gray-200);
  border-radius: var(--radius);
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--c-gray-800);
}

.order-lookup input:focus {
  outline: none;
  border-color: var(--c-primary);
}

.order-status-card {
  background: #fff;
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.order-status-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.order-status-icon.pending {
  background: #FEF3C7;
}

.order-status-icon.processing {
  background: #DBEAFE;
}

.order-status-icon.done {
  background: var(--c-success-light);
}

.order-status-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-gray-900);
  margin-bottom: 8px;
}

.order-status-desc {
  font-size: 14px;
  color: var(--c-gray-500);
  margin-bottom: 24px;
}

.order-progress-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 32px 0;
}

.order-progress-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--c-gray-400);
}

.order-progress-item.active {
  color: var(--c-primary);
}

.order-progress-item.done {
  color: var(--c-success);
}

.order-progress-line {
  width: 80px;
  height: 3px;
  background: var(--c-gray-200);
  border-radius: 2px;
}

.order-progress-line.done {
  background: var(--c-success);
}

.order-prototype-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}

/* ===== Admin Page ===== */
.admin-page {
  padding-top: 88px;
  min-height: 100vh;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.admin-header h1 {
  font-size: 24px;
  font-weight: 700;
}

.admin-orders {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.admin-order {
  background: #fff;
  border: 1px solid var(--c-gray-200);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 16px;
  align-items: center;
}

.admin-order-info h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-gray-800);
  margin-bottom: 4px;
}

.admin-order-info p {
  font-size: 13px;
  color: var(--c-gray-500);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.admin-order-meta {
  text-align: right;
  font-size: 12px;
  color: var(--c-gray-400);
}

.admin-order-status {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  display: inline-block;
}

.admin-order-status.pending {
  background: #FEF3C7;
  color: #92400E;
}

.admin-order-status.processing {
  background: #DBEAFE;
  color: #1E40AF;
}

.admin-order-status.done {
  background: var(--c-success-light);
  color: #065F46;
}

/* ===== Footer ===== */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--c-gray-200);
  text-align: center;
}

.footer p {
  font-size: 13px;
  color: var(--c-gray-400);
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--c-gray-900);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 200;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .nav-mobile.open {
    display: flex;
  }

  .nav-mobile a {
    padding: 12px 0;
    font-size: 15px;
    font-weight: 500;
    color: var(--c-gray-700);
    border-bottom: 1px solid var(--c-gray-100);
    text-decoration: none;
  }

  .nav-mobile a:last-child {
    border-bottom: none;
  }

  .nav-mobile-cta {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    background: var(--c-primary);
    color: #fff !important;
    padding: 12px !important;
    border-radius: var(--radius);
    margin-top: 8px;
    font-weight: 600;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-tagline {
    gap: 20px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .step-arrow {
    display: none;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 26px;
  }

  .form-card {
    padding: 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .package-option {
    flex-wrap: wrap;
  }

  .admin-order {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .hero-actions {
    flex-direction: column;
  }
}