:root {
  --sleep: #244d43;
  --sleep-deep: #173f37;
  --sleep-mid: #3c605a;
  --sleep-soft: #eef3f0;
  --sleep-warm: #faf8f3;
  --sleep-line: #d7dfdb;
  --sleep-gold: #af8d53;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: #fff;
  color: #242824;
  font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", sans-serif;
}

.preview-notice {
  position: relative;
  z-index: 20;
  display: flex;
  justify-content: center;
  gap: .75rem;
  padding: .72rem 1rem;
  background: var(--sleep-deep);
  color: #fff;
  font-size: .76rem;
}

.preview-notice strong { letter-spacing: .04em; }
.preview-notice span { opacity: .72; }
.sleep-page { overflow: clip; }

.sleep-header {
  max-width: 1080px;
  margin: auto;
  padding: 92px 28px 42px;
  text-align: center;
}

.sleep-header .eyebrow {
  margin: 0 0 18px;
  color: #247860;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .14em;
}

.sleep-header h1 {
  max-width: 900px;
  margin: 0 auto;
  color: #183f36;
  font-family: Georgia, "Noto Serif KR", serif;
  font-size: clamp(2.15rem, 5vw, 4.6rem);
  font-weight: 500;
  line-height: 1.17;
  letter-spacing: -.045em;
  word-break: keep-all;
}

.sleep-header .lead {
  max-width: 740px;
  margin: 28px auto 24px;
  color: #515b56;
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  line-height: 1.9;
  word-break: keep-all;
}

.byline {
  display: flex;
  justify-content: center;
  gap: 18px;
  color: #718078;
  font-size: .78rem;
}

.sleep-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  max-width: 1120px;
  min-height: 420px;
  margin: 0 auto 78px;
  padding: 0 !important;
  background: linear-gradient(125deg, #102f2a 0%, #1a4b40 54%, #42685d 100%);
  overflow: hidden;
}

.sleep-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0 67%, #ffffff0d 67% 67.15%, transparent 67.15%),
    repeating-linear-gradient(0deg, transparent 0 49px, #ffffff0b 49px 50px);
}

.sleep-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 7px;
  background: linear-gradient(90deg, #d5c49d 0 21%, transparent 21% 26%, #d5c49d 26% 48%, transparent 48% 57%, #d5c49d 57% 73%, transparent 73% 80%, #d5c49d 80% 100%);
  opacity: .9;
}

.hero-copy {
  position: relative;
  z-index: 1;
  align-self: center;
  max-width: 700px;
  padding: 70px 58px 76px 72px;
  color: #fff;
}

.hero-copy small {
  display: block;
  margin-bottom: 26px;
  color: #d5c49d;
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .15em;
}

.hero-copy blockquote {
  margin: 0;
  font-family: Georgia, "Noto Serif KR", serif;
  font-size: clamp(1.7rem, 3.7vw, 3.05rem);
  line-height: 1.42;
  letter-spacing: -.035em;
  word-break: keep-all;
}

.hero-copy p {
  margin: 28px 0 0;
  color: #e0e9e5;
  font-size: .9rem;
  line-height: 1.8;
}

.hero-sleep-map {
  position: relative;
  z-index: 1;
  align-self: stretch;
  display: grid;
  grid-template-columns: 48px 1fr;
  grid-template-rows: 1fr auto auto;
  min-width: 0;
  padding: 66px 48px 58px 18px;
  color: #dce8e3;
}

.hero-sleep-map__labels {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  grid-row: 1;
  padding: 0 8px 7px 0;
  color: #b8cbc4;
  font-size: .52rem;
  font-weight: 800;
  letter-spacing: .08em;
}

.hero-sleep-map__plot {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  align-items: start;
  gap: 5px;
  grid-column: 2;
  grid-row: 1;
  min-height: 220px;
  padding: 6px 0 0;
  border-top: 1px solid #ffffff24;
  border-bottom: 1px solid #ffffff24;
}

.hero-sleep-map__plot i {
  display: block;
  height: var(--level);
  min-height: 42px;
  border-radius: 0 0 2px 2px;
  background: linear-gradient(180deg, #d6c79e, #78a99a 68%, #ffffff21);
  opacity: .82;
}

.hero-sleep-map__plot i.is-awake {
  min-height: 24px;
  background: #f0dec0;
  box-shadow: 0 0 18px #e9d5ac66;
}

.hero-sleep-map__time {
  display: flex;
  justify-content: space-between;
  grid-column: 2;
  margin-top: 10px;
  color: #b8cbc4;
  font-size: .56rem;
  letter-spacing: .04em;
}

.hero-sleep-map > p {
  grid-column: 2;
  margin: 22px 0 0;
  color: #f0dec0;
  font-size: .66rem;
  font-weight: 750;
  letter-spacing: .12em;
  text-align: right;
}

.sleep-layout {
  display: grid;
  grid-template-columns: 190px minmax(0, 720px);
  gap: 56px;
  max-width: 1030px;
  margin: 0 auto;
  padding: 0 28px 100px;
}

.toc {
  position: sticky;
  top: 28px;
  align-self: start;
  padding-top: 8px;
}

.toc p {
  margin: 0 0 18px;
  color: #247860;
  font-size: .66rem;
  font-weight: 900;
  letter-spacing: .12em;
}

.toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid #d8dfdc;
}

.toc a {
  display: block;
  padding: 7px 0 7px 17px;
  color: #7a827e;
  font-size: .72rem;
  line-height: 1.42;
  text-decoration: none;
}

.toc a:hover,
.toc a:focus-visible { color: #247860; }

.toc a.is-active,
.toc a[aria-current="location"] {
  color: #176d57;
  font-weight: 800;
  transform: translateX(3px);
}

.toc a { position: relative; transition: color .2s ease, transform .2s ease; }

.article { min-width: 0; }

.answer {
  margin: 0 0 72px;
  padding: 34px 36px;
  border-top: 3px solid #247860;
  background: var(--sleep-soft);
}

.answer small,
.section-label {
  display: block;
  margin-bottom: 14px;
  color: #247860;
  font-size: .67rem;
  font-weight: 900;
  letter-spacing: .12em;
}

.answer h2 {
  margin: 0 0 14px;
  color: #183f36;
  font-size: 1.25rem;
  line-height: 1.55;
}

.answer p {
  margin: 0 !important;
  color: #3d4b45;
  font-size: .94rem !important;
  font-weight: 560;
  line-height: 1.9 !important;
}

.article > p {
  margin: 0 0 1.45rem;
  color: #3c423f;
  font-size: 1rem;
  line-height: 2;
  word-break: keep-all;
}

.article > h2 {
  margin: 88px 0 28px;
  padding-top: 44px;
  border-top: 1px solid var(--sleep-line);
  color: #183f36;
  font-family: Georgia, "Noto Serif KR", serif;
  font-size: clamp(1.62rem, 3vw, 2.25rem);
  font-weight: 560;
  line-height: 1.42;
  letter-spacing: -.035em;
  word-break: keep-all;
}

.article strong { color: #184a3e; }

.cycle-card {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 42px 0;
  border: 1px solid var(--sleep-line);
  background: var(--sleep-line);
}

.cycle-card article { padding: 25px 20px; background: #fff; }
.cycle-card small { color: #247860; font-size: .65rem; font-weight: 900; letter-spacing: .08em; }
.cycle-card h3 { margin: 10px 0; color: #244d43; font-size: .98rem; }
.cycle-card p { margin: 0; color: #5c6560; font-size: .79rem; line-height: 1.72; }

.article-quote {
  margin: 46px 0;
  padding: 34px 38px;
  border-left: 3px solid var(--sleep-gold);
  background: var(--sleep-warm);
  color: #244d43;
  font-family: Georgia, "Noto Serif KR", serif;
  font-size: 1.28rem;
  line-height: 1.8;
  word-break: keep-all;
}

.related-column {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  margin: 54px 0;
  padding: 34px 36px;
  border: 1px solid var(--sleep-line);
  background: linear-gradient(135deg, #f7f9f8, #edf3f0);
  color: inherit;
  text-decoration: none;
  overflow: hidden;
}

.related-column::after {
  content: "READ";
  position: absolute;
  right: 70px;
  bottom: -30px;
  color: #2478600b;
  font-size: 6.2rem;
  font-weight: 900;
}

.related-column__copy { position: relative; z-index: 1; }
.related-column small { color: #247860; font-size: .64rem; font-weight: 900; letter-spacing: .12em; }
.related-column h3 { margin: 12px 0 8px; color: #183f36; font-family: Georgia, "Noto Serif KR", serif; font-size: 1.35rem; font-weight: 560; line-height: 1.45; word-break: keep-all; }
.related-column p { margin: 0; color: #65716b; font-size: .78rem; line-height: 1.65; }
.related-column__action { position: relative; z-index: 1; white-space: nowrap; color: #247860; font-size: .78rem; font-weight: 800; }
.related-column:hover { border-color: #8eb3a7; }
.related-column:focus-visible { outline: 3px solid #24786055; outline-offset: 3px; }

.case {
  position: relative;
  margin: 50px -34px;
  padding: 46px 38px;
  border: 1px solid var(--sleep-line);
  background: linear-gradient(145deg, #f7f9f8, #edf3f0);
  overflow: hidden;
}

.case::after {
  content: "CASE";
  position: absolute;
  right: -8px;
  top: -30px;
  color: #2478600c;
  font-size: 8rem;
  font-weight: 900;
}

.case-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 30px;
}

.case-mark {
  display: grid;
  place-items: center;
  flex: 0 0 58px;
  height: 58px;
  border-radius: 50%;
  background: #247860;
  color: #fff;
  font-size: .62rem;
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
}

.case-head h3 { margin: 0 0 6px; color: #183f36; font-size: 1.38rem; line-height: 1.45; }
.case-head p { margin: 0; color: #587069; font-size: .75rem; }
.case-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--sleep-line);
  background: var(--sleep-line);
}

.case-grid article {
  min-width: 0;
  padding: 26px 23px 28px;
  background: #fff;
}

.case-grid small {
  display: block;
  color: #247860;
  font-size: .62rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.case-grid strong {
  display: block;
  margin: 12px 0 10px;
  color: #183f36;
  font-size: .95rem;
  line-height: 1.62;
  word-break: keep-all;
}

.case-grid p {
  margin: 0;
  color: #59625e;
  font-size: .77rem;
  line-height: 1.75;
  word-break: keep-all;
}

.case-grid .case-result {
  position: relative;
  background: #244d43;
}

.case-grid .case-result::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: #d5c49d;
}

.case-grid .case-result small { color: #ddcda9; }
.case-grid .case-result strong { color: #fff; }
.case-grid .case-result p { color: #dce7e2; }

.case-note {
  margin-top: 22px !important;
  color: #6b746f !important;
  font-size: .82rem !important;
  line-height: 1.75 !important;
}

.check-panel {
  margin: 44px 0;
  padding: 38px;
  background: var(--sleep-deep);
  color: #fff;
}

.check-panel small { color: #cbb98d; font-size: .65rem; font-weight: 900; letter-spacing: .1em; }
.check-panel h3 { margin: 14px 0 26px; font-family: Georgia, "Noto Serif KR", serif; font-size: 1.55rem; font-weight: 500; line-height: 1.5; }
.check-list { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: #ffffff25; }
.check-list div { padding: 22px; background: #214b42; }
.check-list b { display: block; margin-bottom: 7px; color: #dfcfaa; font-size: .8rem; }
.check-list span { color: #e3ebe8; font-size: .77rem; line-height: 1.7; }

.faq { margin-top: clamp(2.4rem, 4vw, 3.5rem); padding: 0; }
.faq h2 { margin: 0 0 24px; color: #183f36; font-family: Georgia, "Noto Serif KR", serif; font-size: 1.8rem; }
.faq details { border-top: 1px solid var(--sleep-line); }
.faq details:last-child { border-bottom: 1px solid var(--sleep-line); }
.faq summary { padding: 21px 4px; color: #28483f; font-size: .9rem; font-weight: 700; cursor: pointer; }
.faq p { margin: 0; padding: 0 4px 24px; color: #59625e; font-size: .82rem; line-height: 1.8; }

.closing {
  margin: 80px 0 0;
  padding: 48px 42px;
  background: #244d43;
  color: #fff;
  text-align: center;
}

.closing small { color: #cdbd95; font-size: .65rem; font-weight: 900; letter-spacing: .13em; }
.closing p { margin: 18px auto 0; color: #eef4f1; font-family: Georgia, "Noto Serif KR", serif; font-size: clamp(1.3rem, 2.4vw, 1.85rem); line-height: 1.7; word-break: keep-all; }
.article .closing strong { color: #fff; }

/* 하단 예약 CTA와 NAP — 저널형 칼럼 공통 관행(자율신경·두통 칼럼)의 구조를 본문 폭에 맞춰 세로로 쌓는다 */
.sleep-action {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: 1.4rem;
  margin-top: clamp(2.4rem, 4vw, 3.5rem);
  padding: clamp(1.6rem, 4.5vw, 3rem);
  overflow: hidden;
  border-radius: 26px;
  background: linear-gradient(135deg, var(--sleep-deep) 0%, #1f5a4c 55%, #247860 100%);
  box-shadow: 0 1.6rem 3.4rem rgba(23, 63, 55, .2);
  color: #fff;
  font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", sans-serif;
}

.sleep-action {
  grid-template-columns: minmax(0, 1fr) minmax(200px, 250px);
  grid-template-areas: "primary map" "info info";
}

.sleep-action__primary { grid-area: primary; min-width: 0; }
.sleep-action .sleep-action__info { grid-area: info; }

.sleep-action__map {
  grid-area: map;
  min-height: 260px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 18px;
  background: rgba(255, 255, 255, .08);
  box-shadow: 0 1rem 2.2rem rgba(4, 37, 29, .22);
}

.sleep-action__map iframe { display: block; width: 100%; height: 100%; min-height: 260px; border: 0; }

.sleep-action::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -8rem;
  top: -10rem;
  width: 22rem;
  height: 22rem;
  border: 1px solid rgba(255, 255, 255, .15);
  border-radius: 50%;
  box-shadow: 0 0 0 3.5rem rgba(255, 255, 255, .035), 0 0 0 7rem rgba(255, 255, 255, .025);
}

.sleep-action .column-consult,
.sleep-action .column-nap {
  margin: 0;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: #fff;
}

.sleep-action .column-section-label {
  margin: 0 0 1.05rem;
  color: #cdbd95;
  font-size: .66rem;
  font-weight: 800;
  letter-spacing: .18em;
}

.sleep-action__primary h2 {
  margin: 0 0 1rem;
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -.045em;
  word-break: keep-all;
}

.sleep-action__primary > p:not(.column-section-label) {
  margin: 0;
  color: rgba(255, 255, 255, .8);
  font-size: .96rem;
  line-height: 1.85;
  word-break: keep-all;
}

.sleep-action__button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(100%, 400px);
  min-height: 64px;
  margin-top: 1.75rem;
  padding: .75rem .8rem .75rem 1.3rem;
  border-radius: 999px;
  background: #fff;
  color: var(--sleep-deep);
  font-weight: 750;
  text-decoration: none;
  box-shadow: 0 .7rem 1.6rem rgba(4, 37, 29, .18);
  transition: transform .25s ease, box-shadow .25s ease;
}

.sleep-action__button span { display: flex; flex-direction: column; gap: .1rem; font-size: 1rem; line-height: 1.35; }
.sleep-action__button small { color: #5f766e; font-size: .66rem; font-weight: 600; letter-spacing: .04em; }
.sleep-action__button b { display: grid; flex: 0 0 2.8rem; width: 2.8rem; height: 2.8rem; place-items: center; border-radius: 50%; background: #dceee6; color: var(--sleep-deep); font-weight: 500; }
.sleep-action__button:hover { transform: translateY(-2px); box-shadow: 0 1rem 2.2rem rgba(4, 37, 29, .26); }

.sleep-action .sleep-action__info {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  grid-template-areas: "label links" "name links" "addr links";
  column-gap: 1.5rem;
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 20px;
  background: rgba(255, 255, 255, .08);
}

.sleep-action__info .column-section-label { grid-area: label; }
.sleep-action__info h2 { grid-area: name; margin: 0 0 .7rem; color: #fff; font-size: 1.5rem; font-weight: 650; letter-spacing: -.035em; }
.sleep-action__info address { grid-area: addr; margin: 0; color: rgba(255, 255, 255, .78); font-size: .88rem; font-style: normal; line-height: 1.75; }

.sleep-action .sleep-action__links {
  grid-area: links;
  display: grid;
  gap: .6rem;
  align-self: end;
  margin: 0;
}

.sleep-action__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  min-height: 54px;
  padding: .65rem .95rem;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 13px;
  background: rgba(5, 45, 35, .18);
  color: #fff;
  text-decoration: none;
  transition: background-color .2s ease, border-color .2s ease;
}

.sleep-action__links a span { color: #cdbd95; font-size: .66rem; letter-spacing: .04em; }
.sleep-action__links a strong { color: #fff; font-size: .84rem; font-weight: 670; }
.sleep-action__links a:hover { border-color: rgba(255, 255, 255, .45); background: rgba(255, 255, 255, .12); }

@media (max-width: 900px) {
  .sleep-action { grid-template-columns: 1fr; grid-template-areas: "primary" "map" "info"; }
  .sleep-action__map, .sleep-action__map iframe { min-height: 230px; }
  .sleep-action .sleep-action__info { grid-template-columns: 1fr; grid-template-areas: "label" "name" "addr" "links"; }
  .sleep-action .sleep-action__links { margin-top: 1.4rem; }
}

@media (max-width: 600px) {
  .sleep-action { padding: 1.35rem; border-radius: 22px; }
  .sleep-action__button { width: 100%; }
  .sleep-action .sleep-action__info { padding: 1.25rem; }
}

@media (prefers-reduced-motion: reduce) {
  .sleep-action__button, .sleep-action__links a { transition: none; }
  .sleep-action__button:hover { transform: none; }
}

@media (max-width: 900px) {
  .cycle-card { grid-template-columns: 1fr 1fr; }
  .sleep-hero { grid-template-columns: minmax(0, 1.2fr) minmax(250px, .8fr); }
  .hero-copy { padding-left: 44px; padding-right: 32px; }
  .hero-sleep-map { padding-right: 28px; }
  .case-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .preview-notice { display: block; text-align: center; }
  .preview-notice span { display: block; margin-top: 3px; }
  .sleep-header { padding: 60px 20px 30px; }
  .sleep-hero { display: block; min-height: 0; margin-bottom: 54px; }
  .sleep-hero::before { background: repeating-linear-gradient(0deg, transparent 0 49px, #ffffff0b 49px 50px); }
  .hero-copy { padding: 44px 28px 32px; }
  .hero-sleep-map { grid-template-columns: 42px 1fr; min-height: 220px; padding: 12px 28px 40px; }
  .hero-sleep-map__plot { min-height: 130px; }
  .hero-sleep-map > p { margin-top: 14px; }
  .sleep-layout { display: block; padding: 0 20px 72px; }
  .toc { position: relative; top: auto; margin-bottom: 54px; padding: 22px; background: #f6f8f7; }
  .toc ol { columns: 2; }
  .answer { padding: 27px 24px; }
  .article > h2 { margin-top: 70px; }
  .case { margin: 42px -8px; padding: 34px 18px; }
  .case-head { align-items: flex-start; }
  .check-list { grid-template-columns: 1fr; }
  .check-panel { padding: 32px 22px; }
  .article-quote { padding: 28px 24px; }
  .related-column { grid-template-columns: 1fr; padding: 28px 24px; }
  .related-column__action { justify-self: start; }
  .closing { padding: 42px 24px; }
}

@media (max-width: 480px) {
  .toc ol { columns: 1; }
  .cycle-card { grid-template-columns: 1fr; }
  .sleep-header h1 { font-size: clamp(2rem, 10vw, 2.75rem); }
  .hero-copy blockquote { font-size: 1.55rem; }
}