/* BRANLUMI 랜딩 — 정적 페이지 스타일. 외부 폰트/CDN 없음. 시스템 폰트 스택만 사용. */

:root {
  color-scheme: light;

  --color-bg: #FAF8F5;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F1ECE3;
  --color-primary: #4C2F80;
  --color-primary-dark: #37225E;
  --color-text: #241A33;
  --color-text-soft: #4A3D5C;
  --color-accent: #E7A23B;
  --color-accent-dark: #8A5A12;
  --color-border: #DCD3E6;
  --color-focus: #1F1430;
  --color-focus-on-dark: #FCE8C4;
  --color-badge-ready-bg: #E9E2F4;
  --color-badge-ready-text: #3A2560;
  --color-badge-planned-bg: #FBEFD9;
  --color-badge-planned-text: #6B4408;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo", Roboto, "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: anywhere;
  min-width: 320px;
}

h1, h2, h3 {
  color: var(--color-primary);
  line-height: 1.35;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); }
h3 { font-size: 1.1rem; }

p {
  margin: 0 0 1em;
}

a {
  color: var(--color-primary);
}

ul, ol {
  padding-left: 1.2em;
}

img, svg {
  max-width: 100%;
}

.section-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 3.5rem 1.25rem;
}

.section-inner-narrow {
  max-width: 760px;
}

/* 초점 표시 */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 2px;
}

/* skip link */
.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: 6px;
  z-index: 200;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 1rem;
}

/* 헤더 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(4px);
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
}

.wordmark {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.wordmark-bran {
  color: var(--color-primary);
}

.wordmark-lumi {
  color: var(--color-accent-dark);
}

.site-nav {
  flex: 1 1 auto;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.1rem;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
  font-weight: 600;
  color: var(--color-text-soft);
  scroll-margin-top: 5.5rem;
}

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

/* 앵커 대상 스크롤 여백(sticky 헤더 가림 방지) */
section[id], [id]:target {
  scroll-margin-top: 5.5rem;
}

/* 버튼 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  border: 2px solid transparent;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-surface-alt);
}

.btn-small {
  padding: 0.55rem 1.1rem;
  font-size: 0.92rem;
}

/* 히어로 */
.hero {
  padding-top: 1rem;
}

.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3.5rem;
  text-align: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font-weight: 700;
  font-size: 0.92rem;
  margin: 0 0 1.25rem;
}

.status-badge-icon {
  width: 18px;
  height: 18px;
  flex: none;
}

.eyebrow {
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-bottom: 0.5rem;
}

.hero-lead {
  max-width: 640px;
  margin: 1.1rem auto;
  font-size: 1.05rem;
  color: var(--color-text-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  justify-content: center;
  margin: 1.6rem 0 0.9rem;
}

.hero-note {
  font-size: 0.9rem;
  color: var(--color-text-soft);
  max-width: 520px;
  margin: 0.4rem auto 0;
}

/* 흐름 다이어그램 */
.flow-figure {
  margin: 3rem auto 0;
  max-width: 720px;
}

.flow-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 1.6rem 1rem;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-primary);
  min-width: 96px;
}

.flow-step-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-surface-alt);
  color: var(--color-primary);
}

.flow-step-label {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
}

.flow-arrow {
  color: var(--color-accent-dark);
  flex: none;
}

figcaption {
  text-align: center;
  margin-top: 0.8rem;
  color: var(--color-text-soft);
  font-size: 0.9rem;
}

/* 문제 섹션 */
.problems {
  background: var(--color-surface);
}

.problem-list {
  list-style: none;
  margin: 1.8rem 0 1rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.problem-list li {
  border-left: 4px solid var(--color-primary);
  padding: 0.2rem 0 0.2rem 1.1rem;
}

.note {
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

/* 서비스 소개 — 타임라인 */
.service-lead {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
  max-width: 720px;
}

.timeline {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: relative;
}

.timeline li {
  position: relative;
  padding: 1.2rem 1.4rem 1.2rem 3.6rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
}

.timeline-index {
  position: absolute;
  left: 1rem;
  top: 1.1rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.timeline h3 {
  margin-bottom: 0.6rem;
}

.timeline dl {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(80px, auto) 1fr;
  gap: 0.35rem 0.9rem;
}

.timeline dt {
  font-weight: 700;
  color: var(--color-text-soft);
}

.timeline dd {
  margin: 0;
}

.timeline dl > div {
  display: contents;
}

/* 이름 소개 */
.name-section {
  background: var(--color-surface-alt);
}

.subtle-heading {
  font-size: 1.25rem;
  color: var(--color-text);
}

.name-combo {
  font-weight: 700;
  font-size: 1.05rem;
}

/* 결과물 */
.result-list {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.result-list li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.1rem 1.3rem;
}

.result-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
  margin-bottom: 0.5rem;
}

.result-head h3 {
  margin: 0;
  flex: 1 1 auto;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  white-space: nowrap;
  border: 1.5px solid transparent;
}

.badge-ready {
  background: var(--color-badge-ready-bg);
  color: var(--color-badge-ready-text);
  border-color: var(--color-primary);
}

.badge-planned {
  background: var(--color-badge-planned-bg);
  color: var(--color-badge-planned-text);
  border-color: var(--color-accent-dark);
}

.badge-draft {
  background: var(--color-badge-planned-bg);
  color: var(--color-badge-planned-text);
  border-color: var(--color-accent-dark);
  margin-bottom: 0.6rem;
}

/* 이용 방식 */
.how {
  background: var(--color-surface);
}

.step-list {
  counter-reset: step;
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.2rem;
}

.step-list li {
  counter-increment: step;
  position: relative;
  padding: 1.4rem 1.1rem 1.1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-weight: 600;
}

.step-list li::before {
  content: counter(step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  margin-bottom: 0.7rem;
}

/* 예시 */
.example-flag {
  display: inline-block;
  border: 2px dashed var(--color-accent-dark);
  color: var(--color-accent-dark);
  font-weight: 700;
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  margin-bottom: 1.6rem;
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.4rem;
}

.doc-mock {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 1.2rem 1.3rem;
  box-shadow: 0 1px 0 var(--color-border);
}

.doc-mock h3 {
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.doc-mock-meta {
  font-size: 0.82rem;
  color: var(--color-text-soft);
  margin-bottom: 0.7rem;
}

.doc-mock-label {
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--color-text-soft);
  margin: 0.7rem 0 0.3rem;
}

.doc-mock ul {
  margin: 0 0 0.3rem;
  padding-left: 1.1em;
  font-size: 0.94rem;
}

.doc-mock-copy {
  font-size: 0.94rem;
  margin: 0 0 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px dashed var(--color-border);
}

.doc-mock-copy:last-child {
  border-bottom: none;
}

.doc-mock-record {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.doc-mock-record li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.94rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-border);
}

.doc-mock-record li:last-child {
  border-bottom: none;
}

/* 신뢰와 준비 현황 */
.status {
  background: var(--color-surface);
}

.status-current {
  font-size: 1.05rem;
  background: var(--color-surface-alt);
  border-radius: 10px;
  padding: 0.9rem 1.2rem;
  display: inline-block;
}

.principle-list {
  margin: 1.5rem 0;
  padding-left: 1.2em;
}

.principle-list li {
  margin-bottom: 0.5rem;
}

.table-scroll {
  overflow-x: auto;
  margin-top: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
}

.status-table {
  border-collapse: collapse;
  width: 100%;
  min-width: 480px;
}

.status-table caption {
  text-align: left;
  font-weight: 700;
  padding: 0.9rem 1rem 0.4rem;
  color: var(--color-text-soft);
}

.status-table th,
.status-table td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--color-border);
  vertical-align: top;
}

.status-table thead th {
  background: var(--color-surface-alt);
}

.status-table tbody th {
  white-space: nowrap;
  color: var(--color-primary);
}

/* FAQ */
.faq-list details {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 0.9rem 1.2rem;
  margin-bottom: 0.8rem;
  background: var(--color-surface);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.faq-list details p {
  margin-top: 0.7rem;
  margin-bottom: 0.2rem;
}

/* 마지막 행동 영역 */
.next {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
}

.next h2 {
  color: #fff;
}

.next p {
  color: #EFE7FA;
  max-width: 640px;
  margin: 0 auto 1.2rem;
}

.next .btn-secondary {
  color: #fff;
  border-color: #fff;
}

.next .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

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

.next .btn-primary:hover {
  background: var(--color-focus-on-dark);
}

.next :focus-visible {
  outline-color: var(--color-focus-on-dark);
}

/* 푸터 */
.site-footer {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.site-footer p {
  color: var(--color-text-soft);
  font-size: 0.9rem;
  max-width: 640px;
  margin: 0.6rem auto;
}

.footer-nav {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 1.2rem;
}

.footer-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-weight: 600;
  color: var(--color-text-soft);
}

/* 반응형 */
@media (max-width: 720px) {
  /* 모바일에서는 헤더를 sticky 로 띄우지 않는다 — 히어로의 동일 버튼과 중복되는
     헤더 버튼을 숨기므로 겹침 방지용 여백(sticky 대응)도 함께 걷어낸다. */
  .site-header {
    position: static;
  }

  .header-inner .btn {
    display: none;
  }

  section[id],
  [id]:target {
    scroll-margin-top: 1rem;
  }

  .site-nav a {
    scroll-margin-top: 1rem;
  }
}

@media (max-width: 640px) {
  .section-inner {
    padding: 2.4rem 1.1rem;
  }

  .hero-inner {
    padding: 1.8rem 1.1rem 2.6rem;
  }

  .flow-diagram {
    flex-direction: column;
  }

  .flow-arrow svg {
    transform: rotate(90deg);
  }

  .timeline dl {
    grid-template-columns: 1fr;
  }

  .timeline dt {
    margin-top: 0.4rem;
  }

  .result-head {
    align-items: flex-start;
  }

  .badge-ready,
  .badge-planned {
    white-space: normal;
    text-align: left;
  }
}

/* 동작 축소 선호 */
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}

html {
  scroll-behavior: smooth;
}