:root {
  --blue-900: #082a52;
  --blue-700: #0b57d0;
  --blue-600: #0d6efd;
  --blue-500: #3b9dff;
  --blue-100: #e3f0ff;
  --blue-50: #f2f8ff;
  --orange-600: #ff7a18;
  --orange-700: #e8630a;
  --orange-100: #ffece0;
  --navy: #0d2039;
  --gray-600: #46566b;
  --gray-300: #d8e2ea;
  --white: #ffffff;
  --danger: #d64545;
  --radius: 14px;
  --max-width: 560px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--navy);
  background: var(--white);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

h1, h2, h3 {
  margin: 0;
  font-weight: 900;
}

p {
  margin: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--gray-300);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: inline-flex;
  align-items: center;
}

.logo-img {
  height: 28px;
  width: auto;
}

.header-call {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--orange-600);
  color: var(--white);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(255, 122, 24, 0.35);
}

/* ---------- Layout helpers ---------- */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 56px 20px;
}

.section h2 {
  font-size: 27px;
  text-align: center;
  color: var(--navy);
  letter-spacing: -0.6px;
  line-height: 1.35;
}

.section-desc {
  margin-top: 12px;
  text-align: center;
  color: var(--gray-600);
  font-size: 15.5px;
  line-height: 1.6;
}

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 36px 20px 44px;
  background: linear-gradient(180deg, var(--blue-100) 0%, #ffffff 100%);
  text-align: center;
}

.hero-brand {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.hero-logo-img {
  height: 46px;
  width: auto;
}

.hero-badges {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.badge {
  font-size: 13px;
  font-weight: 800;
  padding: 7px 14px;
  border-radius: 999px;
}

.badge-orange {
  background: var(--orange-100);
  color: var(--orange-700);
}

.badge-blue {
  background: var(--blue-100);
  color: var(--blue-700);
}

.hero h1 {
  font-size: 32px;
  line-height: 1.35;
  color: var(--navy);
  letter-spacing: -0.8px;
}

.hero-sub {
  margin-top: 18px;
  font-size: 16px;
  color: var(--gray-600);
  line-height: 1.6;
}

.hero-sub strong {
  color: var(--blue-700);
  font-weight: 800;
}

.hero-cta {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-trust {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 14.5px;
  color: var(--blue-900);
  font-weight: 700;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 17px 24px;
  border-radius: 12px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.2px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

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

.btn-primary {
  background: var(--orange-600);
  color: var(--white);
  box-shadow: 0 10px 22px rgba(255, 122, 24, 0.35);
}

.btn-primary:hover {
  background: var(--orange-700);
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ---------- Checklist ---------- */
.checklist-section {
  background: var(--blue-50);
  border-radius: 24px;
  max-width: calc(var(--max-width) + 40px);
}

.checklist {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--white);
  padding: 15px 16px;
  border-radius: 12px;
  border: 1.5px solid var(--gray-300);
  font-size: 15.5px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.check-item input {
  margin-top: 2px;
  width: 20px;
  height: 20px;
  accent-color: var(--blue-600);
  flex-shrink: 0;
}

.check-item:has(input:checked) {
  border-color: var(--blue-600);
  background: var(--blue-100);
  font-weight: 700;
}

.checklist-result {
  margin-top: 24px;
  padding: 22px 20px;
  background: var(--white);
  border-radius: 14px;
  text-align: center;
  border: 1.5px solid var(--gray-300);
}

#checklistMsg {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.5;
}

#checklistMsg.warn {
  color: var(--danger);
}

/* ---------- Strengths ---------- */
.strength-grid {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.strength-card {
  padding: 22px 20px;
  border-radius: var(--radius);
  border: 1.5px solid var(--gray-300);
  background: var(--white);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.strength-card:hover {
  border-color: var(--blue-500);
  box-shadow: 0 6px 18px rgba(13, 110, 253, 0.1);
}

.strength-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.strength-card h3 {
  font-size: 17.5px;
  color: var(--navy);
  letter-spacing: -0.3px;
}

.strength-card p {
  margin-top: 9px;
  font-size: 14.5px;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ---------- Process ---------- */
.process-section {
  background: var(--blue-900);
  border-radius: 24px;
  max-width: calc(var(--max-width) + 40px);
  color: var(--white);
}

.process-section h2 {
  color: var(--white);
}

.process-section .section-desc {
  color: #b9d4ec;
}

.process-steps {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.step-num {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--orange-600);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 16px;
}

.process-step h3 {
  font-size: 17px;
  letter-spacing: -0.2px;
}

.process-step p {
  margin-top: 5px;
  font-size: 14.5px;
  line-height: 1.6;
  color: #d3e6fa;
}

/* ---------- Types ---------- */
.type-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.type-card {
  padding: 18px 16px;
  border-radius: 12px;
  background: var(--blue-50);
  border: 1px solid var(--gray-300);
}

.type-card h3 {
  font-size: 16px;
  font-weight: 800;
  color: var(--blue-700);
}

.type-card p {
  margin-top: 7px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--gray-600);
}

/* ---------- Form ---------- */
.form-section {
  background: var(--blue-50);
  border-radius: 24px;
  max-width: calc(var(--max-width) + 40px);
  margin-bottom: 40px;
}

.lead-form {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-row label {
  font-size: 14.5px;
  font-weight: 800;
  color: var(--navy);
}

.req {
  color: var(--danger);
}

.form-row input[type="text"],
.form-row input[type="tel"] {
  padding: 15px 14px;
  border-radius: 10px;
  border: 1.5px solid var(--gray-300);
  font-size: 16px;
  background: var(--white);
  font-family: inherit;
}

.form-row input:focus {
  outline: none;
  border-color: var(--blue-600);
}

.radio-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.radio-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 12px;
  border-radius: 10px;
  border: 1.5px solid var(--gray-300);
  background: var(--white);
  font-size: 14.5px;
  font-weight: 500;
  cursor: pointer;
}

.radio-item input {
  accent-color: var(--blue-600);
  width: 16px;
  height: 16px;
}

.radio-item:has(input:checked) {
  border-color: var(--blue-600);
  background: var(--blue-100);
  font-weight: 700;
}

.form-notice {
  font-size: 12.5px;
  color: var(--gray-600);
  line-height: 1.55;
}

.form-msg {
  font-size: 14.5px;
  text-align: center;
  min-height: 18px;
}

.form-msg.success {
  color: #147a3f;
  font-weight: 700;
}

.form-msg.error {
  color: var(--danger);
  font-weight: 700;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy);
  color: #a9bdd1;
  padding: 36px 20px 104px;
  text-align: center;
  font-size: 12.5px;
  line-height: 1.85;
}

.footer-logo-chip {
  display: inline-flex;
  background: var(--white);
  padding: 9px 16px;
  border-radius: 10px;
  margin-bottom: 12px;
}

.footer-logo-img {
  height: 26px;
  width: auto;
}

.footer-copy {
  margin-top: 10px;
  color: #6f88a0;
}

/* ---------- Sticky bottom CTA ---------- */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: flex;
  max-width: var(--max-width);
  margin: 0 auto;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
}

.sticky-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 17px 0;
  font-size: 16px;
  font-weight: 800;
}

.sticky-form {
  background: var(--orange-600);
  color: var(--white);
}

/* ---------- Responsive (tablet/desktop) ---------- */
@media (min-width: 640px) {
  .hero h1 {
    font-size: 40px;
  }

  .hero-cta {
    flex-direction: row;
    justify-content: center;
  }

  .btn {
    width: auto;
  }

  .strength-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}