:root{
  --paper: #F5F2EA;
  --card: #FFFFFF;
  --ink: #23324A;
  --ink-soft: #667089;
  --mustard: #D9A441;
  --brick: #B5533C;
  --sage: #6E8B5D;
  --line: #E2DCCB;
  --radius-lg: 20px;
  --radius-sm: 10px;
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }

body{
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3{
  font-family: 'Newsreader', serif;
  font-weight: 600;
  margin: 0;
}

a{ color: var(--ink); text-decoration: underline; text-decoration-color: var(--mustard); text-underline-offset: 2px; }
a:hover{ color: var(--brick); }

:focus-visible{
  outline: 2px solid var(--brick);
  outline-offset: 2px;
}

.app{
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar{
  background: var(--ink);
  color: #E7E9F0;
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 34px;
  border-right: 6px solid var(--mustard);
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
}

.brand-mark{
  width:38px; height:38px;
  border-radius: 8px;
  background: var(--mustard);
  color: var(--ink);
  display:flex; align-items:center; justify-content:center;
  font-family:'Newsreader', serif;
  font-weight:600;
  font-size: 15px;
  flex-shrink:0;
}

.brand-name{ display:flex; flex-direction:column; line-height:1.3; }
.brand-name strong{ font-family:'Newsreader', serif; font-size:17px; font-weight:600; }
.brand-name span{ font-size:12px; color:#AEB6CB; }

.nav{
  display:flex;
  flex-direction:column;
  gap:2px;
  flex:1;
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 18px;
}

.nav-link{
  padding:9px 10px;
  border-radius: var(--radius-sm);
  color:#C6CCDE;
  font-size:14.5px;
  border-left: 2px solid transparent;
  transition: background .15s ease, color .15s ease;
  text-decoration:none;
}

.nav-link:hover{
  background: rgba(255,255,255,.06);
  color:#fff;
}

.nav-link.active{
  color:#fff;
  border-left-color: var(--mustard);
  background: rgba(217,164,65,.14);
}

.sidebar-foot{
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top:18px;
  font-size:13px;
  color:#AEB6CB;
  line-height:1.5;
}
.sidebar-foot a{ color: var(--mustard); text-decoration-color: var(--mustard); }

/* ---------- Main ---------- */
.main{
  padding: 32px 42px 60px;
  max-width: 1180px;
}

.topbar{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.eyebrow-date{
  margin:0 0 4px;
  font-size:13.5px;
  color: var(--ink-soft);
}

.topbar h1{
  font-size: 29px;
  font-weight:600;
}

.search input{
  width: 300px;
  max-width: 60vw;
  padding: 10px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--card);
  font-family:'IBM Plex Sans', sans-serif;
  font-size: 14px;
  color: var(--ink);
}
.search input::placeholder{ color:#9099AF; }
.search input:focus{
  outline:none;
  border-color: var(--mustard);
  box-shadow: 0 0 0 3px rgba(217,164,65,.22);
}

/* ---------- Stats ---------- */
.stats{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 26px;
}

.stat{
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--mustard);
  border-radius: var(--radius-lg);
  padding: 17px 19px;
  display:flex;
  flex-direction:column;
  gap:6px;
}

.stat-label{ font-size: 12.5px; color: var(--ink-soft); }

.stat-value{
  font-family:'Newsreader', serif;
  font-size: 27px;
  font-weight: 600;
}

.stat-change{ font-size: 12px; color: var(--ink-soft); }
.stat-change.up{ color: var(--sage); }
.stat-change.flag{ color: var(--brick); }

/* ---------- Board layout ---------- */
.board{
  display:grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 20px;
  align-items:start;
}

.panel{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px 24px 26px;
}

.panel-head{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  flex-wrap:wrap;
  gap:6px;
  margin-bottom: 16px;
}

.panel-head h2{ font-size: 18px; }
.panel-head p{ margin:0; font-size: 13px; color: var(--ink-soft); }

/* ---------- Period schedule ---------- */
.schedule{
  display:flex;
  flex-direction:column;
}

.p-row{
  display:grid;
  grid-template-columns: 92px 1fr;
  align-items:center;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}
.p-row:first-child{ border-top: none; }

.p-time{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.p-num{
  font-family:'Newsreader', serif;
  font-size: 15px;
  font-weight:600;
  color: var(--ink);
}
.p-clock{
  font-size: 11.5px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.p-card{
  display:flex;
  align-items:center;
  gap: 14px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}
.p-row.now .p-card{ background: rgba(217,164,65,.12); }

.p-main{ display:flex; flex-direction:column; margin-right:auto; }
.p-main strong{ font-size: 14.5px; }
.p-main span{ font-size: 12.5px; color: var(--ink-soft); }

.p-tag{
  font-size: 11.5px;
  padding: 4px 10px;
  border-radius: 999px;
  white-space:nowrap;
}
.tag-done{ background:#E4EBDF; color:#4E6A44; }
.tag-now{ background:#F4E5C6; color:#8A6C1A; }
.tag-upcoming{ background:#ECEAE0; color: var(--ink-soft); }
.tag-alert{ background:#F3D9D2; color:#9A3D2A; }

.p-row.done{ opacity: .72; }

/* ---------- Side column ---------- */
.side-col{
  display:flex;
  flex-direction:column;
  gap:20px;
}

/* Attendance bars */
.grade-list{
  list-style:none;
  margin:0; padding:0;
  display:flex;
  flex-direction:column;
  gap: 14px;
}
.grade-list li{
  display:grid;
  grid-template-columns: 36px 1fr 40px;
  align-items:center;
  gap: 12px;
}
.grade-label{ font-size: 13px; color: var(--ink-soft); }
.grade-bar{
  height: 8px;
  background: #EFEBDE;
  border-radius: 999px;
  overflow:hidden;
}
.grade-fill{
  height:100%;
  background: var(--sage);
  border-radius: 999px;
}
.grade-fill.warn{ background: var(--mustard); }
.grade-pct{
  font-size: 12.5px;
  text-align:right;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
}

/* Alerts */
.alerts{
  list-style:none;
  margin:0; padding:0;
  display:flex;
  flex-direction:column;
  gap: 4px;
}
.alerts li{
  display:flex;
  align-items:flex-start;
  gap: 11px;
  padding: 9px 6px;
  border-radius: var(--radius-sm);
}
.alerts li div{ display:flex; flex-direction:column; }
.alerts li strong{ font-size:13.5px; }
.alerts li span{ font-size:12px; color: var(--ink-soft); }

.alert-dot{
  width:8px; height:8px;
  border-radius:50%;
  margin-top: 5px;
  flex-shrink:0;
}
.dot-alert{ background: var(--brick); }
.dot-warn{ background: var(--mustard); }
.dot-info{ background: #7C88A8; }

/* ---------- Responsive ---------- */
@media (max-width: 980px){
  .app{ grid-template-columns: 1fr; }
  .sidebar{
    flex-direction:row;
    align-items:center;
    padding: 16px 20px;
    gap: 20px;
    overflow-x:auto;
    border-right:none;
    border-bottom: 6px solid var(--mustard);
  }
  .nav{ flex-direction:row; border-top:none; padding-top:0; }
  .sidebar-foot{ display:none; }
  .main{ padding: 24px 20px 50px; }
  .stats{ grid-template-columns: repeat(2,1fr); }
  .board{ grid-template-columns: 1fr; }
}

@media (max-width: 520px){
  .stats{ grid-template-columns: 1fr; }
  .p-row{ grid-template-columns: 70px 1fr; }
}

@media (prefers-reduced-motion: reduce){
  *{ transition: none !important; }
}