/* ============================================================
   한마음 교회 청소년 1부 편집부 — Apple 스타일 디자인 시스템
   ============================================================ */

:root{
  --bg: #f5f5f7;
  --bg-elevated: #ffffff;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --accent: #0071e3;
  --accent-dark: #0058b8;
  --line: rgba(0,0,0,0.08);
  --card-shadow: 0 2px 14px rgba(0,0,0,0.06);
  --card-shadow-hover: 0 10px 30px rgba(0,0,0,0.10);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --nav-h: 52px;
  --green: #1fa855;
  --orange: #ff9f0a;
  --red: #ff3b30;
  --purple: #af52de;

  /* font scale: adjustable via JS (small / normal / large / xlarge) */
  --fs-scale: 1;
  --fs-base: calc(17px * var(--fs-scale));
  --fs-sm: calc(14px * var(--fs-scale));
  --fs-md: calc(19px * var(--fs-scale));
  --fs-lg: calc(24px * var(--fs-scale));
  --fs-xl: calc(34px * var(--fs-scale));
  --fs-xxl: calc(48px * var(--fs-scale));
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Apple SD Gothic Neo",
               "Pretendard", "Malgun Gothic", "Segoe UI", sans-serif;
  font-size: var(--fs-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.01em;
  transition: font-size .2s ease;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }

.wrap{
  max-width: 980px;
  margin: 0 auto;
  padding: 0 22px;
}

/* ---------------- Nav ---------------- */
.nav{
  position: sticky;
  top:0;
  z-index: 500;
  height: var(--nav-h);
  display:flex;
  align-items:center;
  background: rgba(245,245,247,0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap{
  display:flex;
  align-items:center;
  justify-content: space-between;
  width:100%;
  gap: 12px;
}
.nav-brand{
  font-weight: 600;
  font-size: calc(15px * var(--fs-scale));
  white-space: nowrap;
  display:flex;
  align-items:center;
  gap:8px;
}
.nav-brand .dot{
  width:8px;height:8px;border-radius:50%;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  flex: none;
}
.nav-links{
  display:flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar{ display:none; }
.nav-links a{
  font-size: calc(13px * var(--fs-scale));
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: 100px;
  white-space: nowrap;
  transition: background .15s, color .15s;
}
.nav-links a:hover{ background: rgba(0,0,0,0.05); color: var(--text); }
.nav-links a.active{ background: var(--text); color:#fff; }

/* ---------------- Hero ---------------- */
.hero{
  padding: 64px 0 40px;
  text-align:center;
}
.hero .eyebrow{
  font-size: calc(13px * var(--fs-scale));
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .02em;
  margin-bottom: 10px;
}
.hero h1{
  font-size: var(--fs-xxl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  line-height:1.12;
}
.hero p{
  font-size: var(--fs-md);
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto;
}
.hero-verse{
  margin-top: 22px;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  font-style: italic;
}

/* ---------------- Sections ---------------- */
section{ padding: 34px 0; }
.section-head{
  display:flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 10px;
  flex-wrap: wrap;
}
.section-head h2{
  font-size: var(--fs-xl);
  font-weight: 700;
  letter-spacing: -0.015em;
  margin:0;
}
.section-head .sub{
  color: var(--text-secondary);
  font-size: var(--fs-sm);
}
.page-header{
  padding: 46px 0 20px;
}
.page-header .eyebrow{
  font-size: calc(13px * var(--fs-scale));
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
}
.page-header h1{
  font-size: calc(var(--fs-xxl) * 0.72);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.page-header p{
  color: var(--text-secondary);
  font-size: var(--fs-base);
  max-width: 640px;
}

/* ---------------- Cards / Grid ---------------- */
.grid{
  display:grid;
  gap: 16px;
}
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
@media (max-width: 760px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
}

.card{
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(0,0,0,0.04);
  transition: box-shadow .2s ease, transform .2s ease;
}
.card:hover{ box-shadow: var(--card-shadow-hover); }
.card h3{
  font-size: var(--fs-md);
  margin: 0 0 8px;
  font-weight: 650;
}
.card p{ color: var(--text-secondary); font-size: var(--fs-sm); margin:0; }
.card .icon{
  width: 44px; height:44px;
  border-radius: 12px;
  display:flex; align-items:center; justify-content:center;
  font-size: 20px;
  margin-bottom: 14px;
  background: rgba(0,113,227,0.1);
}

.link-card{
  display:block;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(0,0,0,0.04);
  transition: box-shadow .2s ease, transform .2s ease;
}
.link-card:hover{ box-shadow: var(--card-shadow-hover); transform: translateY(-2px); }
.link-card .row{ display:flex; align-items:center; justify-content:space-between; gap:10px; }
.link-card h3{ font-size: var(--fs-md); margin:0 0 6px; font-weight:650; }
.link-card p{ color: var(--text-secondary); font-size: var(--fs-sm); margin:0; }
.link-card .arrow{ color: var(--text-secondary); font-size: 18px; flex:none; }

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding: 11px 20px;
  border-radius: 100px;
  font-size: calc(15px * var(--fs-scale));
  font-weight: 600;
  border: none;
  cursor:pointer;
  transition: transform .12s ease, background .15s ease, opacity .15s ease;
}
.btn:active{ transform: scale(0.97); }
.btn-primary{ background: var(--accent); color:#fff; }
.btn-primary:hover{ background: var(--accent-dark); }
.btn-secondary{ background: rgba(0,0,0,0.06); color: var(--text); }
.btn-secondary:hover{ background: rgba(0,0,0,0.1); }
.btn:disabled{ opacity:.4; cursor:not-allowed; }

/* ---------------- Badges ---------------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-size: calc(12px * var(--fs-scale));
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
}
.badge-blue{ background: rgba(0,113,227,0.12); color: var(--accent); }
.badge-green{ background: rgba(31,168,85,0.12); color: var(--green); }
.badge-orange{ background: rgba(255,159,10,0.14); color: #b06d00; }
.badge-red{ background: rgba(255,59,48,0.12); color: var(--red); }
.badge-gray{ background: rgba(0,0,0,0.06); color: var(--text-secondary); }
.badge-purple{ background: rgba(175,82,222,0.12); color: var(--purple); }

/* ---------------- Upcoming duty widget ---------------- */
.duty-list{ display:flex; flex-direction:column; gap: 12px; }
.duty-item{
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(0,0,0,0.04);
  display:grid;
  grid-template-columns: 88px 1fr 1fr;
  gap: 16px;
  align-items:center;
}
.duty-item.today{ outline: 2px solid var(--accent); outline-offset: -2px; }
.duty-item.meeting{ box-shadow: inset 3px 0 0 var(--accent), var(--card-shadow); }
@media (max-width: 700px){
  .duty-item{ grid-template-columns: 1fr; gap:8px; }
}
.duty-date{
  font-weight: 700;
  font-size: var(--fs-base);
  display:flex; flex-direction:column; align-items:flex-start; gap:6px;
}
.duty-date .badge{ font-weight:600; }
.duty-col-label{ font-size: calc(11px * var(--fs-scale)); color: var(--text-secondary); font-weight:600; text-transform:uppercase; letter-spacing:.04em; margin-bottom:2px; }
.duty-col-topic{ font-size: var(--fs-sm); font-weight:600; margin-bottom:2px; }
.duty-col-name{ font-size: var(--fs-sm); color: var(--text-secondary); }

/* ---------------- Tables ---------------- */
.table-scroll{ overflow-x:auto; border-radius: var(--radius-md); box-shadow: var(--card-shadow); }
table{
  width:100%;
  border-collapse: collapse;
  background: var(--bg-elevated);
  font-size: var(--fs-sm);
}
thead th{
  text-align:left;
  padding: 12px 14px;
  background: rgba(0,0,0,0.03);
  font-weight: 650;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}
tbody td{
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
tbody tr:last-child td{ border-bottom:none; }
tbody tr.is-meeting{ background: rgba(0,113,227,0.10); box-shadow: inset 3px 0 0 var(--accent); }
tbody tr.is-meeting td:first-child{ font-weight: 650; }
tbody tr.is-today{ background: rgba(255,159,10,0.14); }
tbody tr.is-meeting.is-today{ background: rgba(255,159,10,0.16); box-shadow: inset 3px 0 0 var(--accent); }
tbody tr.is-past{ opacity: .55; }

/* ---------------- Forms ---------------- */
.field{ margin-bottom: 18px; }
.field label{ display:block; font-weight:600; font-size: var(--fs-sm); margin-bottom:6px; }
select, input[type="date"]{
  width:100%;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  font-size: var(--fs-base);
  color: var(--text);
  font-family: inherit;
}
table input[type="text"], table input[type="date"], table input[type="number"]{
  width: 100%;
  min-width: 88px;
  padding: 7px 9px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  font-size: var(--fs-sm);
  color: var(--text);
  font-family: inherit;
}
table input[type="checkbox"]{ width:18px; height:18px; }
.btn-icon-del{
  border:none; background: rgba(255,59,48,0.1); color:#ff3b30;
  width:28px; height:28px; border-radius:8px; cursor:pointer; font-size:14px; line-height:1;
}
.btn-icon-del:hover{ background: rgba(255,59,48,0.18); }

.roster{ display:flex; flex-direction:column; gap:10px; }
.roster-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(0,0,0,0.04);
  gap: 12px;
}
.roster-item .who{ display:flex; align-items:center; gap:12px; }
.roster-item .avatar{
  width:38px; height:38px; border-radius:50%;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color:#fff; font-weight:700; font-size: var(--fs-sm);
  display:flex; align-items:center; justify-content:center;
  flex:none;
}
.roster-item .meta{ font-size: var(--fs-sm); }
.roster-item .meta .name{ font-weight:650; }
.roster-item .meta .sub{ color: var(--text-secondary); font-size: calc(12px * var(--fs-scale)); }

.toggle{
  position:relative;
  width: 96px;
  height: 38px;
  border-radius: 100px;
  background: rgba(0,0,0,0.08);
  border:none;
  cursor:pointer;
  display:flex;
  padding: 3px;
}
.toggle .knob{
  width: 45px; height: 32px;
  border-radius: 100px;
  background:#fff;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  transition: transform .18s ease;
  display:flex; align-items:center; justify-content:center;
  font-size: calc(12px * var(--fs-scale));
  font-weight:700;
  color: var(--text-secondary);
}
.toggle.on{ background: rgba(31,168,85,0.18); }
.toggle.on .knob{ transform: translateX(46px); color: var(--green); }
.toggle.off .knob{ color: var(--red); }
.toggle-label{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:space-between;
  padding: 0 10px;
  font-size: calc(11px * var(--fs-scale));
  font-weight:700;
  pointer-events:none;
}
.toggle.on .toggle-label{ color: var(--green); justify-content:flex-start; padding-left:10px; }
.toggle.off .toggle-label{ color: var(--red); justify-content:flex-end; padding-right:10px; }

.summary-bar{
  display:flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.summary-pill{
  background: var(--bg-elevated);
  border-radius: 100px;
  padding: 10px 18px;
  box-shadow: var(--card-shadow);
  font-size: var(--fs-sm);
  font-weight:600;
  display:flex; align-items:center; gap:8px;
}

/* ---------------- Content / prose ---------------- */
.prose{ font-size: var(--fs-base); }
.prose h2{ font-size: var(--fs-lg); font-weight:700; margin: 34px 0 14px; letter-spacing:-0.01em; }
.prose h3{ font-size: var(--fs-md); font-weight:650; margin: 24px 0 10px; }
.prose p{ margin: 0 0 14px; color: var(--text); }
.prose ul, .prose ol{ margin: 0 0 14px; padding-left: 22px; }
.prose li{ margin-bottom: 8px; }
.prose .muted{ color: var(--text-secondary); }

.commit-list{ display:flex; flex-direction:column; gap:12px; margin: 18px 0; }
.commit-item{
  display:flex; gap:14px; align-items:flex-start;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: var(--card-shadow);
}
.commit-item .num{
  width:28px; height:28px; border-radius:50%; flex:none;
  background: var(--accent); color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-weight:700; font-size: var(--fs-sm);
}
.commit-item p{ margin:0; font-size: var(--fs-sm); }

.quote-block{
  text-align:center;
  padding: 30px 24px;
  background: linear-gradient(135deg, rgba(0,113,227,0.06), rgba(175,82,222,0.06));
  border-radius: var(--radius-lg);
  margin: 24px 0;
}
.quote-block .en{ font-size: var(--fs-sm); color: var(--text-secondary); margin-top:8px; }
.quote-block .who{ font-size: calc(12px * var(--fs-scale)); color: var(--text-secondary); margin-top:10px; }

.timeline{ display:flex; flex-direction:column; gap:0; }
.timeline-item{
  display:grid;
  grid-template-columns: 90px 24px 1fr;
  gap: 8px;
}
.timeline-item .t-date{ font-size: var(--fs-sm); font-weight:650; padding-top:2px; }
.timeline-item .t-line{ display:flex; flex-direction:column; align-items:center; }
.timeline-item .t-dot{ width:10px;height:10px;border-radius:50%; background: var(--accent); margin-top:6px; flex:none; }
.timeline-item .t-bar{ flex:1; width:2px; background: var(--line); margin-top:2px; }
.timeline-item:last-child .t-bar{ display:none; }
.timeline-item .t-body{ padding-bottom: 22px; }
.timeline-item .t-body h4{ margin:0 0 4px; font-size: var(--fs-sm); font-weight:650; }
.timeline-item .t-body p{ margin:0; font-size: calc(13px * var(--fs-scale)); color: var(--text-secondary); }

.resource-card{
  display:block;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(0,0,0,0.04);
}
.resource-card .site{ font-size: calc(12px * var(--fs-scale)); color: var(--accent); font-weight:600; margin-bottom:4px; }
.resource-card h4{ margin:0 0 6px; font-size: var(--fs-sm); font-weight:650; }
.resource-card p{ margin:0; font-size: calc(13px * var(--fs-scale)); color: var(--text-secondary); }

/* week curriculum cards */
.week-card{
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  overflow:hidden;
  border: 1px solid rgba(0,0,0,0.04);
}
.week-card summary{
  padding: 18px 22px;
  cursor:pointer;
  font-weight:650;
  font-size: var(--fs-base);
  display:flex; align-items:center; justify-content:space-between;
  list-style:none;
}
.week-card summary::-webkit-details-marker{ display:none; }
.week-card summary .chev{ transition: transform .2s ease; color: var(--text-secondary); }
.week-card[open] summary .chev{ transform: rotate(90deg); }
.week-card .week-body{ padding: 0 22px 22px; }
.week-body .cols{ display:grid; grid-template-columns: 1fr 1fr; gap:16px; }
@media (max-width:700px){ .week-body .cols{ grid-template-columns:1fr; } }
.week-body .col h5{ margin:0 0 6px; font-size: var(--fs-sm); font-weight:700; color: var(--accent); }
.week-body .col p{ margin:0 0 8px; font-size: calc(13px * var(--fs-scale)); color: var(--text-secondary); }
.week-body .tip{
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255,159,10,0.08);
  font-size: calc(13px * var(--fs-scale));
}

/* ---------------- Footer ---------------- */
footer{
  padding: 40px 0 120px;
  text-align:center;
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  border-top: 1px solid var(--line);
  margin-top: 40px;
}

/* ---------------- Floating controls (font-size / back-to-top) ---------------- */
.fab-stack{
  position: fixed;
  right: 20px;
  bottom: 26px;
  display:flex;
  flex-direction:column;
  gap: 10px;
  z-index: 900;
}
.fab{
  width: 48px; height:48px;
  border-radius:50%;
  background: rgba(29,29,31,0.88);
  color:#fff;
  border:none;
  display:flex; align-items:center; justify-content:center;
  font-size: 16px;
  font-weight:700;
  cursor:pointer;
  box-shadow: 0 6px 18px rgba(0,0,0,0.22);
  backdrop-filter: blur(8px);
  transition: transform .15s ease, opacity .15s ease, background .15s ease;
}
.fab:hover{ background: rgba(29,29,31,1); }
.fab:active{ transform: scale(0.92); }
.fab-top{
  opacity: 0;
  pointer-events:none;
  transform: translateY(8px);
}
.fab-top.show{ opacity:1; pointer-events:auto; transform: translateY(0); }
.fab-font{ font-size: 13px; }

/* toast */
.toast{
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%) translateY(20px);
  background: rgba(29,29,31,0.92);
  color:#fff;
  padding: 12px 22px;
  border-radius: 100px;
  font-size: 14px;
  font-weight:600;
  opacity:0;
  pointer-events:none;
  transition: opacity .25s ease, transform .25s ease;
  z-index: 1000;
  white-space: nowrap;
}
.toast.show{ opacity:1; transform: translateX(-50%) translateY(0); }

@media (max-width: 600px){
  .hero{ padding: 44px 0 28px; }
  section{ padding: 26px 0; }
}

/* ---------------- Auth overlay (password gate) ---------------- */
.auth-overlay{
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(245,245,247,0.94);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 20px;
}
.auth-box{
  width: 100%;
  max-width: 360px;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow-hover);
  padding: 34px 28px;
  text-align:center;
}
.auth-box.shake{ animation: authShake .35s ease; }
@keyframes authShake{
  0%,100%{ transform: translateX(0); }
  25%{ transform: translateX(-6px); }
  75%{ transform: translateX(6px); }
}
.auth-icon{ font-size: 34px; margin-bottom: 8px; }
.auth-box h2{ font-size: var(--fs-lg); margin: 0 0 8px; font-weight:700; }
.auth-box p{ font-size: var(--fs-sm); color: var(--text-secondary); margin: 0 0 20px; }
.auth-form{ display:flex; flex-direction:column; gap:12px; }
.auth-input{
  width:100%;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  font-size: var(--fs-base);
  text-align:center;
  font-family: inherit;
}
.auth-error{ min-height: 20px; margin-top: 12px; color: var(--red); font-size: var(--fs-sm); font-weight:600; }

/* admin-only badge */
.admin-badge{
  display:inline-flex; align-items:center; gap:6px;
  background: rgba(255,59,48,0.1); color: var(--red);
  font-size: calc(12px * var(--fs-scale)); font-weight:700;
  padding: 5px 12px; border-radius:100px; margin-bottom: 10px;
}
.tabbar{ display:flex; gap:8px; margin-bottom:22px; flex-wrap:wrap; }
.tabbar button{
  padding: 10px 18px; border-radius:100px; border:none; cursor:pointer;
  background: rgba(0,0,0,0.06); color: var(--text); font-weight:600; font-size: var(--fs-sm);
}
.tabbar button.active{ background: var(--text); color:#fff; }
.overview-table td.pct-high{ color: var(--green); font-weight:700; }
.overview-table td.pct-mid{ color: #b06d00; font-weight:700; }
.overview-table td.pct-low{ color: var(--red); font-weight:700; }