@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@400;500;600;700;800&display=swap');

:root {
  color-scheme: light dark;
  --bg: #f4f6f3;
  --paper: #ffffff;
  --ink: #192b23;
  --muted: #4c6055;
  --line: #d5dfd6;
  --accent: #22543e;
  --accent-ink: #ffffff;
  --soft: #eaf1e9;
  --warn: #654306;
  --warn-bg: #fff3d9;
  --shadow: 0 6px 28px rgba(26, 53, 36, .045);
  --sans: 'Noto Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111b16; --paper: #1b2921; --ink: #f0f5f0; --muted: #becdc1;
    --line: #405346; --accent: #a4dfba; --accent-ink: #10271b;
    --soft: #2a3e2f; --warn: #f6d9a2; --warn-bg: #382d1b;
    --shadow: none;
  }
}
:root[data-theme="dark"] {
  --bg: #111b16; --paper: #1b2921; --ink: #f0f5f0; --muted: #becdc1;
  --line: #405346; --accent: #a4dfba; --accent-ink: #10271b;
  --soft: #2a3e2f; --warn: #f6d9a2; --warn-bg: #382d1b; --shadow: none;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 18px/1.75 var(--sans); letter-spacing: -.025em; word-break: keep-all; overflow-wrap: anywhere; }
button, input, select { font: inherit; letter-spacing: inherit; }
button, a, input, select { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-underline-offset: 4px; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; }
[hidden] { display: none !important; }
.access-locked .toolbar, .access-locked .today, .access-locked .progress-card, .access-locked .reading-layout, .access-locked .schedule, .access-locked .reading-records, .access-locked .list-connect, .access-locked .day-list-back, .access-locked #calendar-note { display: none !important; }
.access-locked #join { display: block !important; }
.access-locked #join form { margin-top: 20px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
header { max-width: 1184px; margin: auto; padding: 22px 32px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.brand { font-weight: 800; font-size: 23px; text-decoration: none; line-height: 1.45; }
.brand span { display: block; font-size: 14px; color: var(--muted); font-weight: 500; margin-top: 3px; }
.small-link { font-size: 15px; color: var(--muted); padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; }
main { max-width: 1184px; margin: 0 auto; padding: 0 32px 64px; }
.intro { padding: 28px 0 22px; }
.eyebrow { font-size: 14px; letter-spacing: .01em; font-weight: 700; color: var(--muted); margin: 0 0 7px; }
h1 { font: 800 clamp(32px, 4.5vw, 46px)/1.35 var(--sans); margin: 0 0 12px; letter-spacing: -.055em; }
h2 { font-size: 24px; font-weight: 700; line-height: 1.45; margin: 0 0 16px; letter-spacing: -.04em; }
p { margin: 0 0 18px; }
.intro > p:last-child { color: var(--muted); margin: 0; font-size: 17px; }
.calendar-note { border-left: 3px solid var(--accent); padding: 10px 15px; margin: 0 0 16px; font-size: 16px; color: var(--ink); background: var(--soft); border-radius: 0 8px 8px 0; }
.notice { padding: 14px 18px; border: 1px solid var(--line); background: var(--paper); border-radius: 10px; font-size: 15px; color: var(--muted); margin: 4px 0 22px; }
.notice.error { background: var(--warn-bg); color: var(--warn); }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 28px; margin-bottom: 22px; box-shadow: var(--shadow); }
form { display: grid; gap: 12px; }
label { display: block; font-size: 16px; font-weight: 600; }
input, select { border: 1px solid var(--line); border-radius: 9px; padding: 13px; color: var(--ink); background: var(--paper); min-width: 0; max-width: 100%; min-height: 48px; }
input, textarea { width: 100%; }
textarea { font: inherit; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: 9px; padding: 13px; resize: vertical; }
.profile-editor form { margin-top: 16px; }
input::placeholder { color: var(--muted); opacity: 1; }
input[type="checkbox"] { width: 24px; height: 24px; min-height: 24px; flex: none; accent-color: var(--accent); }
.primary, .secondary, .quiet { border-radius: 10px; padding: 14px 18px; border: 1px solid var(--line); min-height: 50px; background: var(--paper); color: var(--ink); font-weight: 700; line-height: 1.5; }
.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.primary:hover:not(:disabled) { filter: brightness(1.1); }
.secondary { background: var(--soft); width: 100%; text-align: left; }
.quiet { font-size: 15px; background: transparent; padding: 10px 13px; font-weight: 600; }
.quiet:disabled { color: var(--muted); border-style: dashed; }
.hint { font-size: 15px; color: var(--muted); line-height: 1.8; margin: 14px 0 0; }
.toolbar { display: flex; align-items: center; gap: 12px; margin: 20px 0 16px; }
.toolbar > div { display: flex; align-items: center; gap: 10px; }
.toolbar > p { margin: 0 0 0 auto; font-size: 15px; color: var(--muted); }
.toolbar label { white-space: nowrap; }
.toolbar select { padding: 8px 13px; font-size: 16px; font-weight: 600; }
.reading-layout { display: grid; grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr); gap: 24px; }
.today { padding: 28px; }
.day-heading { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.day-heading > div { min-width: 0; }
.day-number { display: flex; align-items: center; justify-content: center; min-width: 64px; height: 64px; padding: 8px; border-radius: 15px; background: var(--soft); font-size: 29px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -.05em; }
.day-heading .eyebrow { font-size: 14px; margin-bottom: 5px; }
.day-heading h2 { font-family: var(--sans); font-size: clamp(24px, 3vw, 32px); font-weight: 800; line-height: 1.4; margin: 0; }
.video-box { aspect-ratio: 16/9; border-radius: 12px; overflow: hidden; background: #121a16; display: flex; align-items: center; justify-content: center; text-align: center; position: relative; }
.video-box p { padding: 24px; font-size: 17px; color: #ecf1ed; margin: 0; }
.video-box video, .video-box iframe { display: block; width: 100%; height: 100%; border: 0; }
.video-note { font-size: 14px; }
.complete { display: block; width: 100%; margin-top: 22px; font-size: 20px; min-height: 60px; }
.complete:disabled { background: var(--soft); color: var(--muted); border-color: var(--line); font-size: 16px; }
.complete.done { background: var(--soft); color: var(--ink); border-color: var(--accent); }
.completion-help { text-align: center; font-size: 14px; }
.day-navigation { display: flex; justify-content: space-between; gap: 8px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--line); }
.progress-card { background: var(--soft); }
.progress-card h2 { font-size: 34px; letter-spacing: -.045em; margin: 12px 0; font-weight: 800; font-variant-numeric: tabular-nums; }
.progress-card > p:not(.eyebrow):not(.hint) { font-size: 17px; }
.progress-card .secondary { background: var(--paper); }
.help ol { padding: 0; font-size: 16px; list-style: none; margin: 0 0 22px; }
.help li { display: flex; gap: 10px; align-items: baseline; margin-bottom: 12px; }
.help li span { display: inline-flex; width: 24px; height: 24px; align-items: center; justify-content: center; border-radius: 50%; background: var(--soft); font-size: 14px; font-weight: 700; flex: none; }
.help details { border-top: 1px solid var(--line); padding-top: 14px; }
summary { cursor: pointer; font-size: 15px; font-weight: 600; }
.connection-card { display: grid; grid-template-columns: 1fr 1fr; column-gap: 30px; }
.connection-card > .hint { grid-column: 1/-1; }
.connection-card > div > p:not(.eyebrow) { font-size: 16px; color: var(--muted); }
.section-heading { display: flex; justify-content: space-between; gap: 20px; align-items: center; margin-bottom: 12px; }
.section-heading h2 { margin: 0; }
.section-heading label { font-size: 14px; }
.section-heading select { display: block; padding: 8px 12px; margin-top: 5px; font-size: 16px; }
.days { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 22px; }
.day { border: 1px solid var(--line); border-radius: 12px; text-align: left; padding: 16px; min-height: 116px; background: var(--paper); color: var(--ink); line-height: 1.65; }
.day:hover { background: var(--soft); }
.day span { display: block; font-size: 15px; color: var(--muted); }
.day strong { display: block; font-size: 18px; font-weight: 800; margin-bottom: 5px; }
.day.done { background: var(--soft); }
.day[aria-current="true"] { outline: 2px solid var(--accent); outline-offset: 1px; background: var(--soft); }
.check { display: flex; align-items: flex-start; gap: 14px; font-size: 16px; font-weight: 400; border: 1px solid var(--line); padding: 18px; border-radius: 10px; }
.check strong { font-weight: 700; }
footer { text-align: center; border-top: 1px solid var(--line); padding: 28px 16px; font-size: 15px; color: var(--muted); }
footer p { margin: 0 0 8px; font-weight: 600; }
.skip { position: absolute; top: -100px; left: 16px; background: var(--paper); padding: 12px; z-index: 9; }
.skip:focus { top: 8px; }
.admin-layout { display: grid; grid-template-columns: minmax(240px, .8fr) minmax(0, 2fr); gap: 24px; }
.person { border-top: 1px solid var(--line); padding: 22px 0; }
.person-head { display: flex; justify-content: space-between; gap: 12px; }
.person h3 { margin: 0; font-size: 20px; }
.person p { font-size: 16px; color: var(--muted); margin: 10px 0; }
.person-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.person details { font-size: 16px; margin: 12px 0; }
.code-box { background: var(--soft); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin-top: 20px; }
.code-box code { display: block; word-break: break-all; user-select: all; font-size: 16px; }
.admin-filter { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 20px 0; }
.admin-filter input { grid-column: 1/-1; }
.privacy-copy { max-width: 820px; }
.privacy-copy h2 { margin-top: 28px; }
.privacy-copy li { margin: 8px 0; }
.warning { color: var(--warn); background: var(--warn-bg); padding: 16px; border-radius: 10px; font-size: 16px; }
.preview-banner { padding: 9px 16px; background: var(--warn-bg); color: var(--warn); text-align: center; font: 500 14px/1.6 var(--sans); }
.preview-banner details { display: inline; }
.preview-banner summary { display: inline; margin-left: 8px; font-size: 14px; text-decoration: underline; }
.preview-banner p { margin: 6px 0; font-size: 14px; }
@media (max-width: 850px) {
  .reading-layout, .admin-layout { grid-template-columns: 1fr; }
  .reading-layout aside { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
  .days { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .toolbar { flex-wrap: wrap; }
}
@media (max-width: 540px) {
  body { font-size: 18px; }
  header { padding: 16px; border-bottom: 1px solid var(--line); }
  main { padding: 0 16px 40px; }
  .brand { font-size: 20px; }
  .brand span { font-size: 13px; }
  .small-link { font-size: 14px; padding: 8px 10px; }
  .intro { padding: 23px 0 18px; }
  h1 { font-size: 32px; margin-bottom: 8px; }
  .intro .eyebrow { font-size: 14px; }
  .intro > p:last-child { font-size: 16px; }
  .calendar-note { padding: 10px 12px; font-size: 15px; line-height: 1.7; margin-bottom: 12px; }
  .toolbar { margin: 14px 0; gap: 8px; }
  .toolbar label { font-size: 14px; }
  .toolbar > p { font-size: 14px; }
  .toolbar select { font-size: 15px; padding: 8px 10px; }
  .card { padding: 20px; border-radius: 15px; margin-bottom: 18px; }
  .today { padding: 20px 16px; }
  .day-heading { gap: 12px; margin-bottom: 18px; }
  .day-number { min-width: 52px; height: 56px; font-size: 26px; border-radius: 12px; }
  .day-heading h2 { font-size: 26px; }
  .day-heading .eyebrow { font-size: 13px; }
  .video-box { border-radius: 8px; }
  .video-note { font-size: 14px; margin-top: 10px; }
  .complete { font-size: 19px; min-height: 58px; margin-top: 18px; }
  .complete:disabled { font-size: 15px; }
  .completion-help { font-size: 14px; }
  .day-navigation { gap: 6px; padding-top: 14px; margin-top: 16px; }
  .day-navigation .quiet { flex: 1; padding: 10px 5px; font-size: 14px; white-space: nowrap; }
  .reading-layout { gap: 0; }
  .reading-layout aside { display: block; }
  .help { padding: 18px 20px; }
  .help h2 { font-size: 21px; }
  .help ol { font-size: 16px; margin-bottom: 16px; }
  .connection-card { display: block; }
  .connection-card form { margin-top: 18px; }
  .days { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .day { padding: 13px; min-height: 114px; }
  .day span { font-size: 14px; }
  .day strong { font-size: 17px; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 14px; }
  .section-heading label { width: 100%; }
  .section-heading select { width: 100%; }
  .check { padding: 14px; font-size: 16px; }
  .admin-filter { grid-template-columns: 1fr; }
  .person-head { flex-wrap: wrap; }
}
@media (max-width: 360px) {
  h1 { font-size: 29px; }
  .toolbar > p { width: 100%; }
  .day-heading h2 { font-size: 23px; }
  .day-number { min-width: 46px; }
  .days { grid-template-columns: 1fr; }
}
.video-first .intro, .video-first #calendar-note, .video-first .toolbar { display: none; }
.video-first header .brand span { display: none; }
.video-first header { padding-top: 14px; padding-bottom: 14px; }
.video-first main { max-width: 850px; padding-top: 12px; }
.video-first .reading-layout { display: block; }
.video-first .today { margin-bottom: 16px; }
.video-first .day-heading { margin-bottom: 16px; }
.video-first .day-heading .eyebrow { font-size: 15px; }
.video-first .day-navigation { margin-top: 14px; padding-top: 12px; }
.daily-record-link { display: block; text-align: center; margin-top: 18px; font-size: 16px; font-weight: 700; }
.reading-records > summary { padding: 18px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); font-size: 18px; margin-bottom: 18px; }
.reading-records aside { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.reading-records .days { grid-template-columns: repeat(3,minmax(0,1fr)); }
@media(max-width:540px) {
  .video-first .day-heading { gap: 10px; }
  .video-first .complete { margin-top: 14px; }
  .reading-records aside { display: block; }
  .reading-records .days { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media(max-width:360px) { .reading-records .days { grid-template-columns: 1fr; } }
.day-list .reading-layout, .day-list #calendar-note { display: none; }
.day-list .intro { padding: 16px 0 8px; }
.day-list .intro .eyebrow { display: none; }
.day-list .intro h1 { font-size: 30px; margin-bottom: 6px; }
.day-list .toolbar { margin: 12px 0; }
.day-list .today { padding: 22px; margin-bottom: 18px; }
.today-date { color: var(--accent); font-size: 17px; font-weight: 700; margin-bottom: 16px; }
.day-list .today .day-navigation { display: none; }
.day-list .today .day-heading { margin-bottom: 18px; }
@media(max-width:540px) {
  .day-list .today { padding: 18px 16px; }
  .today-date { font-size: 16px; line-height: 1.65; }
}
.day-list .progress-card { padding: 14px 18px; margin-bottom: 12px; }
.day-list .progress-card .eyebrow, .day-list .progress-card .hint, .day-list #progress-text { display: none; }
.day-list .progress-card h2 { font-size: 24px; margin: 0 0 8px; }
.day-list .progress-card .secondary { padding: 10px 14px; }
.day-list .schedule { padding: 18px; }
.day-list .schedule .eyebrow { display: none; }
.day-list .section-heading { flex-direction: row; align-items: center; gap: 12px; }
.day-list .section-heading h2 { font-size: 23px; }
.day-list .section-heading label { width: auto; }
.day-list .schedule > .hint { margin-top: 8px; }
.day-list .days { margin-top: 16px; }
.day-list .day[aria-current="false"] { outline: none; }
.list-connect { display: block; margin: 0 0 16px; font-size: 16px; font-weight: 700; }
.day-list-back { display: inline-block; margin: 0 0 14px; font-size: 16px; font-weight: 700; }
@media(max-width:540px) {
  .day-list header .brand span { display: none; }
  .day-list .toolbar > p { width: auto; margin-left: 0; }
  .day-list .days { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .day-list .day { padding: 12px; }
  .day-list .day strong { font-size: 20px; }
  .day-list .section-heading select { font-size: 14px; padding: 8px; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
@media (forced-colors: active) { .day.done { border: 3px double; } .day[aria-current="true"] { outline: 3px solid; } .complete.done { border: 3px double; } }