/* 아이역 iYeok — 한지색 바탕, 먹색 글자 */

:root {
  --paper: #f4efe4;
  --paper-deep: #ebe3d3;
  --ink: #23211e;
  --ink-soft: #5a554d;
  --ink-faint: #8c857a;
  --rule: #d6ccb9;
  --seal: #a8432f;

  --serif: "Noto Serif KR", "Nanum Myeongjo", "AppleMyungjo", "Batang", "바탕", serif;
  --sans: "Pretendard", "Apple SD Gothic Neo", "Malgun Gothic", "맑은 고딕", system-ui, sans-serif;

  --measure: 34rem;
  --gutter: clamp(1rem, 5vw, 3rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1b1a18;
    --paper-deep: #24221f;
    --ink: #ece6da;
    --ink-soft: #b9b1a3;
    --ink-faint: #857e72;
    --rule: #3a3631;
    --seal: #d0705a;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.8;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

/* 머리글 */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 60rem;
  margin: 0 auto;
  padding: 1.5rem var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  text-decoration: none;
}

.brand-mark {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 700;
}

.brand-name {
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* 첫 화면 */

.hero {
  max-width: 60rem;
  margin: 0 auto;
  padding: clamp(3rem, 10vh, 7rem) var(--gutter) clamp(4rem, 12vh, 8rem);
  text-align: center;
}

.hexagram {
  margin: 0 auto 3rem;
  width: fit-content;
  max-width: 100%;
}

.hex-visual {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.25rem 2.25rem;
}

.hex-diagram {
  display: flex;
  gap: 0.85rem;
}

.lines {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  width: 5.5rem;
}

/* 상괘(위 세 효)와 하괘(아래 세 효) 옆에 붙는 이름 */
.trigrams {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.78rem;
  line-height: 1.3;
  color: var(--ink-faint);
  text-align: left;
}

.trigrams span {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.trigrams b {
  display: block;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-soft);
}

.hex-art {
  display: block;
  width: min(17rem, 70vw);
  height: auto;
}

.line {
  display: block;
  height: 0.55rem;
  background: var(--ink);
  border-radius: 1px;
}

.line.yin {
  background: linear-gradient(
    to right,
    var(--ink) 0 42%,
    transparent 42% 58%,
    var(--ink) 58% 100%
  );
}

.hexagram figcaption {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.hex-name {
  font-family: var(--serif);
  font-size: 1rem;
  letter-spacing: 0.3em;
  margin-right: -0.3em;
}

.hex-note {
  font-size: 0.78rem;
  color: var(--ink-faint);
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
}

h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.1rem, 7vw, 3.6rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.lead {
  margin: 1.75rem 0 0;
  font-family: var(--serif);
  font-size: clamp(1.05rem, 2.6vw, 1.3rem);
  color: var(--ink-soft);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 3rem 0 0;
  padding: 0.45rem 1.1rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
}

.try {
  margin: 1.25rem 0 0;
}

.try a {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--ink);
  text-underline-offset: 5px;
}

.dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--seal);
}

/* 본문 구역 */

.section {
  max-width: calc(var(--measure) + 2 * var(--gutter));
  margin: 0 auto;
  padding: 3.5rem var(--gutter);
  border-top: 1px solid var(--rule);
}

h2 {
  margin: 0 0 1.25rem;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 700;
}

h2 .en {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

h3 {
  margin: 2.5rem 0 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.section p {
  margin: 0 0 1rem;
}

.plans {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.plans li {
  padding: 1rem 1.15rem;
  background: var(--paper-deep);
  border-radius: 6px;
  color: var(--ink-soft);
  line-height: 1.6;
}

.plans strong {
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--serif);
  color: var(--ink);
}

.note {
  margin-top: 1.25rem !important;
  font-size: 0.85rem;
  color: var(--ink-faint);
}

blockquote {
  margin: 0 0 1.75rem;
  padding: 0.25rem 0 0.25rem 1.25rem;
  border-left: 3px solid var(--seal);
  font-family: var(--serif);
  font-size: 1.2rem;
  line-height: 1.6;
}

/* 바닥글 */

.site-footer {
  padding: 3rem var(--gutter);
  text-align: center;
  font-size: 0.8rem;
  color: var(--ink-faint);
  border-top: 1px solid var(--rule);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--ink-soft);
  text-underline-offset: 3px;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--ink);
}

@media (min-width: 40rem) {
  .plans {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 26rem) {
  .site-nav {
    gap: 0.9rem;
    font-size: 0.82rem;
  }
}