/* 섹션 id: #greeting, #datetime, #location, #program, #contact
   모바일(카카오톡 인앱 브라우저) 우선. PC에서는 가운데 440px 열로 보인다. */

:root {
  --ink: #0f1011;
  --ink-2: #3d3d43;
  --muted: #62626a;
  --faint: #a1a1a8;
  --canvas: #f2f2f3;
  --card: #ffffff;
  --line: #ebebeb;
  --border: #dcdce0;
  --primary: #1c3a8a;
  --primary-halo: rgba(28, 58, 138, 0.16);
  --subtle: #aebee4;
  --call: #0f1f47;
  --sunday: #b8566a;
  --cover: radial-gradient(110% 60% at 100% 0%, rgba(42, 79, 168, 0.75) 0%, rgba(42, 79, 168, 0) 62%),
    radial-gradient(80% 40% at 0% 100%, rgba(42, 79, 168, 0.26) 0%, rgba(42, 79, 168, 0) 70%), #0f1011;

  --sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Noto Sans KR", "Malgun Gothic", sans-serif;
  --gutter: 24px;

  color-scheme: light;
}

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

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
p,
ol,
address {
  margin: 0;
}

address {
  font-style: normal;
}

a {
  color: inherit;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--canvas);
}

/* 1. 표지 */
.cover {
  padding: 88px var(--gutter) 0;
  background: var(--cover);
  color: #ffffff;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  line-height: 21px;
  letter-spacing: 0.08em;
  color: var(--subtle);
}

.cover h1 {
  margin-top: 12px;
  max-width: 4em;
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.cover-sub {
  margin-top: 16px;
  color: #c4c4ca;
}

.cover-date {
  margin-top: 48px;
  padding: 24px 0 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.cover-day,
.cover-time {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cover-time {
  align-items: flex-end;
  text-align: right;
  color: #c4c4ca;
}

.cover-year,
.cover-weekday {
  font-size: 13px;
  font-weight: 700;
  line-height: 20px;
  letter-spacing: 0.08em;
  color: #a9a9a9;
}

.cover-weekday {
  color: var(--subtle);
}

.cover-day time {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.eyebrow .logo {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

/* 1. 인사말 */
.letter {
  padding: 56px var(--gutter);
  background: var(--card);
}

.letter h2 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.36;
  letter-spacing: -0.01em;
}

.letter-body {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--ink-2);
}

.signature {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  text-align: right;
}

.signature::before {
  content: "";
  width: 24px;
  height: 1px;
  margin-bottom: 8px;
  background: var(--ink);
}

.signature-role {
  font-size: 13px;
  font-weight: 500;
  line-height: 20px;
  letter-spacing: 0.04em;
  color: #8a8a93;
}

.signature-name {
  margin-right: -0.24em;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.24em;
}

/* 2~5. 카드 */
.cards {
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card {
  padding: var(--gutter);
  border-radius: 16px;
  background: var(--card);
}

.label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  line-height: 20px;
}

.label::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-halo);
}

.label span {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--faint);
}

.card-title {
  margin-top: 8px;
  font-size: 24px;
  font-weight: 700;
  line-height: 1.36;
  letter-spacing: -0.01em;
}

.card-sub {
  margin-top: 4px;
  color: var(--muted);
}

/* 달력 (script가 채운다) */
.calendar {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.calendar:empty {
  display: none;
}

.cal-row {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  row-gap: 4px;
  text-align: center;
  font-size: 15px;
  color: var(--ink-2);
}

.cal-row span {
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cal-head {
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}

.cal-head span {
  height: 18px;
}

.cal-row .sun {
  color: var(--sunday);
}

.cal-row .on {
  width: 32px;
  height: 32px;
  margin: 2px auto;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  font-weight: 600;
}

/* 장소 */
.map {
  display: block;
  margin: 16px 0;
  aspect-ratio: 680 / 360;
  border-radius: 12px;
  overflow: hidden;
  background: var(--canvas);
}

.map img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.map + .card-title {
  margin-top: 0;
}

.place-detail {
  margin-top: 0;
  color: var(--ink-2);
}

.address {
  margin-top: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
  line-height: 21px;
  color: var(--muted);
}

.copy {
  flex-shrink: 0;
  height: 44px;
  margin: -6px -8px -6px 0;
  padding: 0 8px;
  border: 0;
  background: transparent;
  font: inherit;
  color: var(--ink);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.copy > span {
  height: 30px;
  padding: 0 10px;
  border-radius: 6px;
  background: var(--canvas);
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}

.copy svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.copy:focus-visible > span,
.map-links a:focus-visible,
.call:focus-visible,
.map:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.map-links {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.map-links a,
.call {
  height: 44px;
  padding: 0 12px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
}

.map-links a {
  border: 1px solid var(--border);
  background: var(--card);
}

/* 프로그램: build.js가 <li><time>18:00</time> 제목</li>로 넣는다 */
.program {
  margin-top: 8px;
  padding: 0;
  list-style: none;
}

.program li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink-2);
}

.program li:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.program small {
  grid-column: 2;
  margin-top: -10px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}

.program time {
  font-weight: 700;
  color: var(--ink);
}

/* 문의처 */
.contact {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 10px;
}

.contact .card-sub {
  margin-top: 0;
}

.contact-name {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.contact-role {
  font-size: 14px;
  font-weight: 500;
  color: #8a8a93;
}

.call {
  margin-top: 20px;
  background: var(--call);
  color: #ffffff;
}

.footer {
  margin-top: auto;
  padding: 16px var(--gutter) 32px;
  font-size: 13px;
  color: var(--muted);
}

/* 표지 첫 등장 (선택): <body class="motion">일 때만 재생 */
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.motion .intro {
  animation: rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.motion h1.intro {
  animation-delay: 0.14s;
}

.motion .cover-sub.intro {
  animation-delay: 0.3s;
}

.motion .cover-date.intro {
  animation-delay: 0.48s;
}

@media (prefers-reduced-motion: reduce) {
  .motion .intro {
    animation: none;
  }
}

/* 좁은 화면 (320px) */
@media (max-width: 359px) {
  :root {
    --gutter: 20px;
  }

  .cover h1 {
    font-size: 40px;
  }
}

/* PC: 어두운 배경 가운데에 440px 열 */
@media (min-width: 600px) {
  body {
    background: radial-gradient(60% 40% at 80% 0%, rgba(42, 79, 168, 0.35) 0%, rgba(42, 79, 168, 0) 70%),
      radial-gradient(50% 35% at 10% 100%, rgba(42, 79, 168, 0.18) 0%, rgba(42, 79, 168, 0) 70%), #0f1011;
    background-attachment: fixed;
    padding: 80px 0;
  }

  .page {
    width: 440px;
    min-height: 0;
    margin: 0 auto;
    border-radius: 28px;
    overflow: hidden;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 40px 120px rgba(0, 0, 0, 0.5);
  }
}