/* ─────────────────────────────────────────────
   AlarMind / Olive Bridge — site styles
   ───────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }

:root {
  /* 새벽에서 아침으로 넘어가는 시간대에서 가져온 색 */
  --ink:        #191C2B;
  --ink-2:      #4B5570;
  --ink-3:      #838BA0;
  --paper:      #F4F6F8;
  --panel:      #FFFFFF;
  --line:       #E1E5EC;
  --line-soft:  #EDEFF3;
  --dusk:       #3E4A73;
  --dawn:       #E39B2C;
  --dawn-wash:  #FCF3E2;

  --font-display: 'Gowun Batang', 'Apple SD Gothic Neo', serif;
  --font-body:    'Pretendard Variable', Pretendard, -apple-system,
                  BlinkMacSystemFont, 'Apple SD Gothic Neo', system-ui, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --measure: 62ch;
  --radius: 10px;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: -0.005em;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--dusk); text-decoration: none; border-bottom: 1px solid var(--line); }
a:hover { color: var(--ink); border-bottom-color: var(--dawn); }
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--dawn);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ── 모바일 상단 진행 표시: 새벽에서 아침으로 ────────── */
.progress {
  position: fixed; inset: 0 0 auto 0; height: 3px; z-index: 60;
  background: transparent; pointer-events: none;
}
.progress__fill {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--dusk), var(--dawn));
  transition: width .12s linear;
}
@media (min-width: 981px) { .progress { display: none; } }

/* ── 헤더 ───────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244, 246, 248, .88);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  max-width: 1140px; margin: 0 auto;
  padding: 14px 24px;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.wordmark {
  font-family: var(--font-display);
  font-size: 19px; font-weight: 700; letter-spacing: -0.02em;
  color: var(--ink); border-bottom: 0;
}
.wordmark span { color: var(--dawn); }
.wordmark:hover { color: var(--ink); }

.site-nav { margin-left: auto; display: flex; gap: 18px; }
.site-nav a {
  font-size: 14px; color: var(--ink-2); border-bottom: 0;
  padding-bottom: 2px; border-bottom: 1px solid transparent;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--dawn); }
.site-nav a[aria-current='page'] { color: var(--ink); border-bottom-color: var(--dawn); }

/* ── 언어 전환 ──────────────────────────────────── */
.lang {
  display: flex; gap: 2px; align-items: center;
  font-family: var(--font-mono); font-size: 11.5px; letter-spacing: .07em;
  padding-left: 16px; margin-left: 2px;
  border-left: 1px solid var(--line);
}
.lang a {
  color: var(--ink-3); border-bottom: 0;
  padding: 4px 7px; border-radius: 5px;
}
.lang a:hover { color: var(--ink); background: var(--dawn-wash); border-bottom: 0; }
.lang a[aria-current='true'] { color: var(--ink); background: var(--dawn-wash); font-weight: 500; }

.hero__alt {
  font-family: var(--font-mono); font-size: 13px;
  color: var(--ink-3); margin: 28px 0 0;
}
.hero__alt a { color: var(--ink-2); }

/* ── 페이지 뼈대 ──────────────────────────────────── */
.shell { max-width: 1140px; margin: 0 auto; padding: 0 24px 96px; }

.page-head { padding: 64px 0 40px; border-bottom: 1px solid var(--line); }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--dawn); margin: 0 0 14px;
}
.page-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.2vw, 46px);
  font-weight: 700; line-height: 1.25; letter-spacing: -0.03em;
  margin: 0 0 16px;
}
.page-lede {
  font-size: 17px; color: var(--ink-2);
  max-width: var(--measure); margin: 0;
}
.page-meta {
  font-family: var(--font-mono); font-size: 12.5px;
  color: var(--ink-3); margin: 22px 0 0;
  display: flex; gap: 18px; flex-wrap: wrap;
}

.layout { display: grid; grid-template-columns: 236px minmax(0, 1fr); gap: 56px; padding-top: 44px; }
@media (max-width: 980px) { .layout { grid-template-columns: 1fr; gap: 0; padding-top: 32px; } }

/* ── 목차: 스크롤에 따라 해가 떠오르는 레일 ──────────── */
.toc { position: sticky; top: 82px; align-self: start; padding-left: 18px; }
.toc::before {
  content: ''; position: absolute; left: 0; top: 4px; bottom: 4px;
  width: 2px; background: var(--line-soft); border-radius: 2px;
}
.toc__fill {
  position: absolute; left: 0; bottom: 4px; width: 2px; height: 0;
  background: linear-gradient(180deg, var(--dawn), var(--dusk));
  border-radius: 2px; transition: height .15s linear;
}
.toc__label {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-3); margin: 0 0 12px;
}
.toc ol { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0 0 3px; }
.toc a {
  display: block; padding: 4px 0;
  font-size: 13.5px; line-height: 1.5;
  color: var(--ink-3); border-bottom: 0;
}
.toc a:hover { color: var(--ink); }
.toc a.is-active { color: var(--ink); font-weight: 600; }
@media (max-width: 980px) { .toc { display: none; } }

/* ── 본문 ───────────────────────────────────────── */
.prose { max-width: var(--measure); }
.prose > section { padding-top: 8px; margin-bottom: 52px; scroll-margin-top: 92px; }

.prose h2 {
  font-family: var(--font-display);
  font-size: 24px; font-weight: 700; letter-spacing: -0.02em; line-height: 1.4;
  margin: 0 0 18px; padding-top: 18px;
  border-top: 1px solid var(--line);
}
.prose h2 .num {
  display: block;
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 500;
  letter-spacing: .1em; color: var(--dawn); margin-bottom: 8px;
}
.prose h3 {
  font-size: 16px; font-weight: 700; letter-spacing: -0.01em;
  margin: 32px 0 12px; color: var(--ink);
}
.prose p { margin: 0 0 16px; }
.prose ul { margin: 0 0 16px; padding-left: 20px; }
.prose li { margin-bottom: 8px; }
.prose li::marker { color: var(--dawn); }
.prose strong { font-weight: 700; }
.prose small { font-size: 14px; color: var(--ink-2); }

.note {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--dawn);
  border-radius: var(--radius);
  padding: 18px 20px; margin: 0 0 20px;
}
.note p:last-child { margin-bottom: 0; }
.note__title { font-weight: 700; margin: 0 0 6px; }

/* 표 */
.table-wrap {
  margin: 0 0 20px; overflow-x: auto;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel);
}
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 460px; }
thead th {
  text-align: left; font-weight: 700; color: var(--ink-2);
  background: var(--dawn-wash);
  padding: 11px 16px; border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
tbody td { padding: 12px 16px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
tbody td:first-child { font-weight: 600; white-space: nowrap; }

/* ── FAQ ────────────────────────────────────────── */
.faq { border-top: 1px solid var(--line); }
.faq details {
  border-bottom: 1px solid var(--line-soft);
  background: transparent;
}
.faq summary {
  cursor: pointer; list-style: none;
  padding: 18px 40px 18px 0; position: relative;
  font-weight: 600; font-size: 16.5px; letter-spacing: -0.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ''; position: absolute; right: 8px; top: 50%;
  width: 9px; height: 9px; margin-top: -6px;
  border-right: 1.8px solid var(--dawn); border-bottom: 1.8px solid var(--dawn);
  transform: rotate(45deg); transition: transform .18s ease;
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq summary:hover { color: var(--dusk); }
.faq__body { padding: 0 0 22px; color: var(--ink-2); }
.faq__body p { margin: 0 0 12px; }
.faq__body p:last-child { margin-bottom: 0; }
.faq__body ol, .faq__body ul { margin: 0 0 12px; padding-left: 20px; }
.faq__body li { margin-bottom: 6px; }
.faq__body code {
  font-family: var(--font-mono); font-size: 13px;
  background: var(--dawn-wash); padding: 2px 6px; border-radius: 4px;
  color: var(--ink); white-space: nowrap;
}

/* ── 연락 카드 ───────────────────────────────────── */
.contact {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 28px; margin: 0 0 44px;
}
.contact h2 { margin: 0 0 10px; font-family: var(--font-display); font-size: 20px; border: 0; padding: 0; }
.contact p { margin: 0 0 8px; color: var(--ink-2); }
.contact .mail {
  font-family: var(--font-mono); font-size: 15px; font-weight: 500;
  color: var(--ink); border-bottom: 1px solid var(--dawn);
}

/* ── 홈 ─────────────────────────────────────────── */
.hero { padding: 92px 0 76px; }
.hero__quote {
  font-family: var(--font-display);
  font-size: clamp(28px, 6vw, 52px); font-weight: 700;
  line-height: 1.35; letter-spacing: -0.035em;
  margin: 0 0 24px; max-width: 18ch;
}
.hero__quote em { font-style: normal; color: var(--dawn); }
.hero__sub { font-size: 18px; color: var(--ink-2); max-width: 46ch; margin: 0 0 36px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card {
  display: block; background: var(--panel);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 26px; border-bottom: 1px solid var(--line);
  transition: border-color .18s ease, transform .18s ease;
}
.card:hover { border-color: var(--dawn); transform: translateY(-2px); color: var(--ink); }
.card h2 { font-family: var(--font-display); font-size: 19px; margin: 0 0 6px; letter-spacing: -0.02em; }
.card p { margin: 0; font-size: 14.5px; color: var(--ink-2); line-height: 1.65; }

/* ── 푸터 ───────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--panel);
  padding: 40px 0;
}
.site-footer__inner {
  max-width: 1140px; margin: 0 auto; padding: 0 24px;
  display: flex; gap: 20px; flex-wrap: wrap; align-items: baseline;
  font-size: 13.5px; color: var(--ink-3);
}
.site-footer__inner a { color: var(--ink-2); border-bottom: 0; }
.site-footer__inner a:hover { color: var(--ink); border-bottom: 1px solid var(--dawn); }
.site-footer .biz { font-family: var(--font-mono); font-size: 12px; }
.site-footer .spacer { margin-left: auto; }

@media (max-width: 560px) {
  .shell { padding: 0 18px 72px; }
  .site-header__inner { padding: 12px 18px; }
  .site-footer__inner { padding: 0 18px; }
  .page-head { padding: 40px 0 28px; }
  .hero { padding: 56px 0 48px; }
  .site-nav { gap: 14px; }
  .site-nav a { font-size: 13px; }
}