/* =========================================================================
   MTs Al-Ulfah 5 — Layout Aplikasi (panel admin, e-learning, halaman login)
   Memakai token & komponen dari style.css.
    1. Shell (sidebar + topbar + konten)
    2. Menu pengguna
    3. Halaman login
    4. Komponen dashboard: KPI, panel, toolbar, daftar ringkas
    5. Grafik (kolom & batang horizontal) + tooltip
    6. Detail data & formulir aksi
   ========================================================================= */

/* 1. SHELL ================================================================= */
.app-body { background: var(--color-bg-soft); }
.app-shell { display: grid; min-height: 100vh; }
@media (min-width: 1024px) { .app-shell { grid-template-columns: 264px minmax(0, 1fr); } }

.app-sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 120;
  display: flex;
  flex-direction: column;
  width: 264px;
  overflow-y: auto;
  background: var(--blue-950);
  color: rgba(255, 255, 255, .75);
  transform: translateX(-100%);
  visibility: hidden;
  transition: transform .3s var(--ease), visibility 0s .3s;
}
.sidebar-open .app-sidebar { transform: none; visibility: visible; transition: transform .3s var(--ease), visibility 0s; }
@media (min-width: 1024px) {
  .app-sidebar { position: sticky; height: 100vh; transform: none; visibility: visible; transition: none; }
}
.app-brand { padding: 1.25rem 1.25rem 1.1rem; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.app-brand img { width: 40px; height: 40px; }
.app-brand .brand-text strong { font-size: 1rem; }

.app-nav { flex: 1; padding-bottom: 1rem; }
.app-nav ul { margin: 0; padding: 0; list-style: none; }
.app-nav-group {
  margin: 0;
  padding: 1.25rem 1.5rem .5rem;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .45);
}
.app-nav-link {
  display: flex;
  align-items: center;
  gap: .75rem;
  width: calc(100% - 1.5rem);
  margin: .1rem .75rem;
  padding: .65rem .9rem;
  border: 0;
  border-radius: 10px;
  background: none;
  color: rgba(255, 255, 255, .78);
  font: 500 .9375rem/1.3 var(--font-sans);
  text-align: left;
  text-decoration: none;
  transition: background-color .2s, color .2s;
}
.app-nav-link .icon { width: 19px; height: 19px; opacity: .85; }
.app-nav-link:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.app-nav-link.is-active { background: var(--blue-600); color: #fff; box-shadow: var(--shadow-blue); }
.app-nav-link.is-active .icon { opacity: 1; }
.app-nav-badge {
  margin-left: auto;
  min-width: 22px;
  padding: .05rem .45rem;
  border-radius: var(--radius-full);
  background: var(--sky-400);
  color: var(--blue-950);
  font-size: .72rem;
  font-weight: 800;
  text-align: center;
}
.app-sidebar-foot { padding: .75rem 0 1rem; border-top: 1px solid rgba(255, 255, 255, .08); }
.app-sidebar-foot form { margin: 0; }

.app-overlay {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: rgba(6, 26, 58, .5);
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility 0s .3s;
}
.sidebar-open .app-overlay { opacity: 1; visibility: visible; transition: opacity .3s, visibility 0s; }
.sidebar-open { overflow: hidden; }
@media (min-width: 1024px) { .app-overlay, .app-menu-btn { display: none !important; } }

.app-main { display: flex; flex-direction: column; min-width: 0; }
.app-topbar {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  gap: .75rem;
  min-height: 68px;
  padding: .6rem clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, .96);
}
.app-topbar-title { flex: 1; min-width: 0; }
.app-topbar-title h1 { margin: 0; overflow: hidden; font-size: 1.2rem; text-overflow: ellipsis; white-space: nowrap; }
.app-breadcrumb { display: flex; flex-wrap: wrap; gap: .35rem; font-size: .78rem; color: var(--color-text-muted); }
.app-breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
@media (max-width: 639.98px) { .app-breadcrumb { display: none; } .app-topbar-title h1 { font-size: 1.05rem; } }
.app-breadcrumb a:hover { color: var(--blue-600); }

.app-content { flex: 1; width: 100%; max-width: 1440px; padding: clamp(1rem, 3vw, 2rem); }
.app-content:focus { outline: none; }
.app-page-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; }
.app-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .5rem 1rem;
  padding: 1rem clamp(1rem, 3vw, 2rem);
  border-top: 1px solid var(--color-border);
  font-size: .8rem;
  color: var(--color-text-muted);
}

/* 2. MENU PENGGUNA ========================================================= */
.user-menu { position: relative; }
.user-menu summary {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .3rem .5rem .3rem .3rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  list-style: none;
  transition: background-color .2s;
}
.user-menu summary::-webkit-details-marker { display: none; }
.user-menu summary:hover, .user-menu[open] summary { background: var(--gray-100); }
.user-menu summary > .icon { width: 16px; height: 16px; color: var(--gray-500); }
.user-menu-name { display: none; line-height: 1.25; }
.user-menu-name strong { display: block; max-width: 180px; overflow: hidden; font-size: .875rem; color: var(--color-heading); text-overflow: ellipsis; white-space: nowrap; }
.user-menu-name small { font-size: .75rem; color: var(--color-text-muted); }
@media (min-width: 768px) { .user-menu-name { display: block; } }
.user-menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 70;
  width: 240px;
  padding: .5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-lg);
}
.user-menu-head { margin: 0 0 .35rem; padding: .6rem .75rem .75rem; border-bottom: 1px solid var(--color-border); }
.user-menu-head strong { display: block; font-size: .9rem; color: var(--color-heading); }
.user-menu-head span { font-size: .8rem; color: var(--color-text-muted); }
.user-menu-panel a, .user-menu-panel button {
  display: flex;
  align-items: center;
  gap: .6rem;
  width: 100%;
  padding: .6rem .75rem;
  border: 0;
  border-radius: var(--radius);
  background: none;
  color: var(--gray-700);
  font: 500 .9rem var(--font-sans);
  text-align: left;
  text-decoration: none;
}
.user-menu-panel a:hover, .user-menu-panel button:hover { background: var(--blue-50); color: var(--blue-700); }
.user-menu-panel .icon { width: 17px; height: 17px; }
.user-menu-panel form { margin: 0; }

/* 3. HALAMAN LOGIN ========================================================= */
.auth-page { background: var(--color-bg-soft); }
.auth-shell { display: grid; min-height: 100vh; }
@media (min-width: 960px) { .auth-shell { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
.auth-aside {
  position: relative;
  isolation: isolate;
  display: none;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  padding: 2.5rem clamp(2rem, 5vw, 4rem);
  background: linear-gradient(140deg, var(--blue-950), var(--blue-800) 55%, var(--blue-600));
  color: rgba(255, 255, 255, .85);
}
.auth-aside::before { content: ""; position: absolute; inset: 0; z-index: -1; background: url("../img/pattern.svg") center / 96px; }
.auth-aside::after {
  content: "";
  position: absolute;
  right: -20%;
  bottom: -25%;
  z-index: -1;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(147, 192, 248, .35), transparent 65%);
}
@media (min-width: 960px) { .auth-aside { display: flex; } }
.auth-aside-body h2 { max-width: 460px; margin: 0 0 1rem; font-size: var(--fs-3xl); color: #fff; }
.auth-aside-body p { max-width: 440px; font-size: var(--fs-md); }
.auth-features { display: grid; gap: .85rem; margin: 2rem 0 0; padding: 0; list-style: none; font-weight: 600; }
.auth-features li { display: flex; align-items: center; gap: .75rem; }
.auth-features .icon { width: 36px; height: 36px; padding: 8px; border-radius: 10px; background: rgba(255, 255, 255, .12); color: var(--blue-200); }
.auth-aside-foot { margin: 0; font-size: .8rem; color: rgba(255, 255, 255, .55); }

.auth-main { display: grid; place-items: center; padding: clamp(1.5rem, 5vw, 3rem) 1rem; }
.auth-card {
  width: 100%;
  max-width: 440px;
  padding: clamp(1.75rem, 5vw, 2.5rem);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: #fff;
  box-shadow: var(--shadow-lg);
}
.auth-brand-mobile { margin-bottom: 1.75rem; }
@media (min-width: 960px) { .auth-brand-mobile { display: none; } }
.auth-title { margin: 0 0 .35rem; font-size: var(--fs-2xl); }
.auth-back { margin: 1.5rem 0 0; text-align: center; font-size: .9rem; }
.auth-back a { display: inline-flex; align-items: center; gap: .35rem; text-decoration: none; }
.auth-back .icon { width: 16px; height: 16px; }
.input-password .form-control { padding-right: 3rem; }
.password-toggle {
  position: absolute;
  top: 50%;
  right: .5rem;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 8px;
  background: none;
  color: var(--gray-500);
  transform: translateY(-50%);
}
.password-toggle:hover { background: var(--gray-100); color: var(--blue-700); }
.password-toggle .icon { position: static; width: 18px; height: 18px; transform: none; color: inherit; }
.demo-box { margin-top: 1.5rem; padding: 1rem; border: 1px dashed var(--blue-200); border-radius: var(--radius-lg); background: var(--blue-50); }
.demo-title { display: flex; align-items: center; gap: .4rem; margin: 0 0 .65rem; font-size: .8rem; font-weight: 600; color: var(--blue-800); }
.demo-title .icon { width: 16px; height: 16px; }
.demo-list { display: flex; flex-wrap: wrap; gap: .4rem; }
.demo-list .chip { padding: .35rem .75rem; font-size: .8rem; }

/* 4. KOMPONEN DASHBOARD ===================================================== */
.kpi-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
@media (min-width: 1100px) { .kpi-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.kpi {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-xs);
  color: inherit;
  text-decoration: none;
  transition: border-color .2s, box-shadow .2s;
}
a.kpi:hover { border-color: var(--blue-200); box-shadow: var(--shadow); color: inherit; }
.kpi-label { display: flex; align-items: center; justify-content: space-between; gap: .5rem; font-size: .875rem; font-weight: 600; color: var(--color-text-muted); }
.kpi-label .icon-box { width: 36px; height: 36px; border-radius: 10px; }
.kpi-label .icon-box .icon { width: 18px; height: 18px; }
.kpi-value { font-size: clamp(1.75rem, 1.4rem + 1.2vw, 2.25rem); font-weight: 800; line-height: 1.1; letter-spacing: -.02em; color: var(--color-heading); }
.kpi-note { font-size: .8rem; color: var(--color-text-muted); }
/* Meter: isian = aksen, lintasan = langkah lebih terang dari ramp yang sama */
.meter { display: block; height: 6px; margin: .2rem 0; overflow: hidden; border-radius: var(--radius-full); background: var(--blue-100); }
.meter > span { display: block; height: 100%; border-radius: var(--radius-full); background: var(--blue-600); }
.kpi-note strong { color: var(--success-700); }

.panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-xs);
}
.panel + .panel { margin-top: 1.5rem; }
.panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1rem;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}
.panel-title { display: flex; align-items: center; gap: .5rem; margin: 0; font-size: 1rem; }
.panel-title .icon { color: var(--blue-600); }
.panel-sub { margin: .15rem 0 0; font-size: .8rem; color: var(--color-text-muted); }
.panel-body { padding: 1.25rem; }
.panel-body-flush { padding: 0; }
.panel-body-flush .table-wrap { border: 0; border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
.panel-foot { padding: .85rem 1.25rem; border-top: 1px solid var(--color-border); font-size: .875rem; }
.panel-foot .pagination ul { margin: 0; }

.dash-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
@media (min-width: 1100px) {
  .dash-grid { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); }
  .dash-grid > .span-2 { grid-column: 1 / -1; }
}
.dash-grid > .panel + .panel { margin-top: 0; }

.toolbar {
  display: grid;
  gap: .75rem;
  margin-bottom: 1rem;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
}
@media (min-width: 900px) {
  .toolbar { grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)) auto; align-items: center; }
}
.toolbar .form-control { min-height: 42px; padding-top: .55rem; padding-bottom: .55rem; font-size: .9rem; }
.toolbar-actions { display: flex; gap: .5rem; }

.list-plain { margin: 0; padding: 0; list-style: none; }
.list-row { display: flex; align-items: center; gap: .85rem; padding: .85rem 1.25rem; border-bottom: 1px solid var(--color-border); }
.list-row:last-child { border-bottom: 0; }
.list-row-main { flex: 1; min-width: 0; }
.list-row-main strong { display: block; overflow: hidden; color: var(--color-heading); font-size: .92rem; text-overflow: ellipsis; white-space: nowrap; }
.list-row-main span { font-size: .8rem; color: var(--color-text-muted); }
.list-row a { text-decoration: none; }

.table .cell-main strong { display: block; color: var(--color-heading); }
.table .cell-main span { font-size: .8rem; color: var(--color-text-muted); }
.table td.actions { white-space: nowrap; text-align: right; }
.table tr.is-unread td { background: var(--blue-50); }
.table tr.is-unread .cell-main strong::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: .45rem;
  border-radius: 50%;
  background: var(--blue-600);
  vertical-align: middle;
}

/* 5. GRAFIK ================================================================= */
/* Kolom vertikal: satu deret, satu hue; batang <= 24px; ujung data membulat 4px, dasar persegi. */
.chart { margin: 0; }
.chart-plot { position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0 .6rem; padding-top: 1.5rem; }
.chart-yaxis { position: relative; width: 1.75rem; font-size: .75rem; color: var(--color-text-muted); font-variant-numeric: tabular-nums; }
.chart-yaxis span { position: absolute; right: 0; transform: translateY(50%); }
.chart-area { position: relative; height: 220px; }
.chart-gridline { position: absolute; right: 0; left: 0; height: 1px; background: var(--color-border); }
.chart-gridline.is-base { background: var(--gray-300); }
.chart-cols { position: absolute; inset: 0; display: flex; align-items: flex-end; }
.chart-col {
  position: relative;
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  border-radius: 6px;
  outline-offset: -2px;
  cursor: default;
}
.chart-col:hover { background: rgba(26, 95, 208, .05); }
.chart-bar {
  width: min(24px, 60%);
  min-height: 2px;
  border-radius: 4px 4px 0 0;
  background: var(--blue-600);
  transition: background-color .15s;
}
.chart-col:hover .chart-bar, .chart-col:focus-visible .chart-bar { background: var(--blue-500); }
.chart-cap { margin-bottom: .3rem; font-size: .78rem; font-weight: 700; color: var(--color-heading); }
.chart-xaxis { display: flex; margin-left: calc(1.75rem + .6rem); padding-top: .5rem; }
.chart-xaxis span { flex: 1; font-size: .72rem; line-height: 1.3; text-align: center; color: var(--color-text-muted); }

/* Batang horizontal: label kategori | batang | nilai di ujung */
.hbar-list { display: grid; gap: .85rem; margin: 0; padding: 0; list-style: none; }
.hbar { display: grid; grid-template-columns: minmax(6.5rem, 11.5rem) minmax(0, 1fr); align-items: center; gap: .75rem; border-radius: 8px; }
.hbar:hover { background: rgba(26, 95, 208, .04); }
/* Label kategori boleh turun baris — tidak pernah dipotong */
.hbar-label { display: flex; align-items: center; gap: .45rem; font-size: .875rem; font-weight: 500; line-height: 1.3; color: var(--gray-700); }
.hbar-label .icon { flex: none; }
.hbar-label .icon { width: 16px; height: 16px; color: var(--gray-500); }
.hbar-track { display: flex; align-items: center; gap: .5rem; min-width: 0; }
.hbar-fill { height: 18px; min-width: 2px; border-radius: 0 4px 4px 0; background: var(--blue-600); transition: background-color .15s; }
.hbar:hover .hbar-fill, .hbar:focus-visible .hbar-fill { background: var(--blue-500); }
.hbar-value { font-size: .85rem; font-weight: 700; color: var(--color-heading); white-space: nowrap; }
.hbar-value small { font-weight: 500; color: var(--color-text-muted); }

.chart-table summary { margin-top: 1rem; font-size: .8rem; font-weight: 600; color: var(--blue-600); cursor: pointer; }
.chart-table .table { margin-top: .5rem; font-size: .85rem; }
.chart-table td:last-child, .chart-table th:last-child { text-align: right; font-variant-numeric: tabular-nums; }

/* Tooltip grafik: nilai tebal di atas, label sekunder di bawah */
.chart-tip {
  position: fixed;
  z-index: 200;
  padding: .45rem .7rem;
  border-radius: 8px;
  background: var(--gray-900);
  color: #fff;
  font-size: .8rem;
  line-height: 1.35;
  pointer-events: none;
  box-shadow: var(--shadow);
  transform: translate(-50%, calc(-100% - 10px));
}
.chart-tip strong { display: block; font-size: .95rem; }
.chart-tip span { color: rgba(255, 255, 255, .75); }

/* 6. DETAIL DATA & AKSI ===================================================== */
.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; align-items: start; }
@media (min-width: 1100px) { .detail-grid { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); } }
.detail-grid .panel + .panel { margin-top: 0; }
.detail-stack { display: grid; align-content: start; gap: 1.5rem; }
.dl-grid { display: grid; grid-template-columns: minmax(0, 1fr); margin: 0; }
@media (min-width: 640px) { .dl-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 1.5rem; } }
.dl-grid > div { padding: .7rem 0; border-bottom: 1px dashed var(--color-border); }
.dl-grid dt { font-size: .78rem; font-weight: 600; letter-spacing: .02em; color: var(--color-text-muted); }
.dl-grid dd { margin: .15rem 0 0; font-weight: 600; color: var(--color-heading); word-break: break-word; }
.dl-grid .span-2 { grid-column: 1 / -1; }

.applicant-head { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; }
.applicant-name { margin: .15rem 0 .5rem; font-size: 1.35rem; }
.applicant-photo { display: grid; place-items: center; width: 72px; height: 96px; overflow: hidden; border-radius: 10px; background: var(--blue-100); flex: none; }
.applicant-photo img { width: 100%; height: 100%; object-fit: cover; }

.file-list { margin: 0; padding: 0; list-style: none; }
.file-item { display: flex; align-items: center; gap: .8rem; padding: .8rem 1.25rem; border-bottom: 1px solid var(--color-border); }
.file-item:last-child { border-bottom: 0; }
.file-item-main { flex: 1; min-width: 0; }
.file-item-main strong { display: block; font-size: .9rem; color: var(--color-heading); }
.file-item-main > span { display: block; overflow: hidden; font-size: .78rem; color: var(--color-text-muted); text-overflow: ellipsis; white-space: nowrap; }

.status-options { display: grid; gap: .5rem; }
.status-option { display: flex; align-items: center; gap: .65rem; padding: .7rem .85rem; border: 1.5px solid var(--gray-200); border-radius: var(--radius); cursor: pointer; transition: border-color .2s, background-color .2s; }
.status-option:hover { border-color: var(--blue-300); }
.status-option:has(input:checked) { border-color: var(--blue-600); background: var(--blue-50); }
.status-option input { accent-color: var(--blue-600); }

.message-card { padding: 1.25rem; }
.message-card + .message-card { border-top: 1px solid var(--color-border); }
.message-card.is-unread { background: var(--blue-50); }
.message-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .35rem 1rem; font-size: .8rem; color: var(--color-text-muted); }
.message-body { margin: .75rem 0 1rem; white-space: pre-line; color: var(--gray-800); }
.message-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.message-actions form { margin: 0; }

/* 7. E-LEARNING ============================================================= */
.d-inline { display: inline-block; }
.toolbar-compact { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)) auto !important; }
.form-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; max-width: 900px; }
.form-layout > .panel + .panel { margin-top: 0; }
.form-layout-single { max-width: 900px; }

/* Warna kelas (keluarga biru, teks putih tetap kontras) */
.kelas-blue   { --k1: #1a5fd0; --k2: #0e3a7e; }
.kelas-sky    { --k1: #0284c7; --k2: #075985; }
.kelas-indigo { --k1: #4f46e5; --k2: #312e81; }
.kelas-teal   { --k1: #0f766e; --k2: #134e4a; }
.kelas-navy   { --k1: #1349a0; --k2: #061a3a; }

.welcome-banner {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: 1.5rem;
  padding: clamp(1.25rem, 3vw, 1.75rem) clamp(1.25rem, 3vw, 2rem);
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, var(--blue-900), var(--blue-600));
  color: rgba(255, 255, 255, .85);
}
.welcome-banner::before { content: ""; position: absolute; inset: 0; z-index: -1; background: url("../img/pattern.svg") center / 96px; }
.welcome-banner h2 { margin: .1rem 0 .25rem; font-size: var(--fs-xl); color: #fff; }
.welcome-banner p { margin: 0; }
.welcome-date { font-size: .8rem; font-weight: 600; letter-spacing: .04em; color: var(--blue-200); }

.kelas-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 230px), 1fr)); gap: 1rem; }
.kelas-grid-lg { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); gap: 1.25rem; }
.kelas-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  color: inherit;
  text-decoration: none;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.kelas-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); color: inherit; }
.kelas-card.is-inactive { opacity: .7; }
.kelas-card-top {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-direction: column;
  gap: .15rem;
  min-height: 112px;
  padding: 1rem 1.1rem;
  background: linear-gradient(135deg, var(--k1, var(--blue-600)), var(--k2, var(--blue-900)));
  color: rgba(255, 255, 255, .85);
}
.kelas-card-top::before { content: ""; position: absolute; inset: 0; z-index: -1; background: url("../img/pattern.svg") center / 80px; }
.kelas-card-top .badge { align-self: flex-start; margin-top: .35rem; }
.kelas-card-code { font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.kelas-card-title { font-size: 1.1rem; line-height: 1.3; color: #fff; }
.kelas-card-teacher { margin-top: auto; font-size: .8rem; }
.kelas-card-stats { display: flex; flex-wrap: wrap; gap: .4rem 1rem; padding: .8rem 1.1rem; font-size: .8rem; color: var(--color-text-muted); }
.kelas-card-stats span { display: inline-flex; align-items: center; gap: .3rem; }
.kelas-card-stats .icon { width: 14px; height: 14px; color: var(--blue-500); }

.kelas-hero {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(1.25rem, 3vw, 2rem);
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(120deg, var(--k2, var(--blue-900)), var(--k1, var(--blue-600)));
  color: rgba(255, 255, 255, .85);
}
.kelas-hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: url("../img/pattern.svg") center / 96px; }
.kelas-hero-main { min-width: 0; max-width: 760px; }
.kelas-hero-code { font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: rgba(255, 255, 255, .75); }
.kelas-hero h2 { margin: .25rem 0 .4rem; font-size: var(--fs-2xl); color: #fff; }
.kelas-hero p { margin: 0 0 .75rem; }
.kelas-hero-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.25rem; font-size: .875rem; }
.kelas-hero-meta > span { display: inline-flex; align-items: center; gap: .45rem; }
.kelas-hero-meta .icon { width: 16px; height: 16px; }
.kelas-hero-meta .avatar { box-shadow: 0 0 0 2px rgba(255, 255, 255, .5); }

.kelas-tabs {
  display: flex;
  gap: .25rem;
  margin-bottom: 1.5rem;
  padding: 0 .75rem;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-top: 0;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: #fff;
  scrollbar-width: none;
}
.kelas-hero + .kelas-tabs { margin-top: 0; }
.panel + .kelas-tabs, .mb-4 + .kelas-tabs { border-top: 1px solid var(--color-border); border-radius: var(--radius-lg); }
.kelas-tab {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .9rem 1rem;
  border-bottom: 3px solid transparent;
  color: var(--gray-600);
  font-size: .9rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}
.kelas-tab .icon { width: 17px; height: 17px; }
.kelas-tab:hover { color: var(--blue-700); }
.kelas-tab.is-active { border-bottom-color: var(--blue-600); color: var(--blue-700); }

.item-list { margin: 0; padding: 0; list-style: none; }
.item { display: flex; align-items: flex-start; gap: 1rem; padding: 1.1rem 1.25rem; border-bottom: 1px solid var(--color-border); }
.item:last-child { border-bottom: 0; }
.item:hover { background: var(--gray-50); }
.item-main { flex: 1; min-width: 0; }
.item-title { display: block; font-weight: 700; color: var(--color-heading); text-decoration: none; }
.item-title:hover { color: var(--blue-600); }
.item-text { margin: .25rem 0 0; font-size: .875rem; color: var(--color-text-muted); }
.item-meta { display: flex; flex-wrap: wrap; gap: .3rem 1rem; margin-top: .4rem; font-size: .8rem; color: var(--color-text-muted); }
.item-meta span { display: inline-flex; align-items: center; gap: .3rem; }
.item-meta .icon { width: 14px; height: 14px; }
.item-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: .35rem; }
.item-actions form { margin: 0; }
@media (max-width: 639.98px) {
  .item { flex-wrap: wrap; }
  .item-actions { width: 100%; justify-content: flex-start; padding-left: calc(52px + 1rem); }
}

/* Nilai */
.grade { display: inline-block; min-width: 2.75rem; padding: .15rem .5rem; border-radius: 8px; font-weight: 700; font-size: .85rem; text-align: center; font-variant-numeric: tabular-nums; }
.grade-a { background: var(--success-50); color: var(--success-700); }
.grade-b { background: var(--blue-50); color: var(--blue-800); }
.grade-c { background: var(--warning-50); color: var(--warning-700); }
.grade-table th, .grade-table td { white-space: nowrap; }
.grade-table thead th { text-transform: none; letter-spacing: 0; font-size: .8rem; max-width: 180px; white-space: normal; }
.grade-type { display: block; font-size: .65rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--color-text-muted); }
.grade-table .sticky-col { position: sticky; left: 0; z-index: 1; background: #fff; box-shadow: 1px 0 0 var(--color-border); }
.grade-table thead .sticky-col { background: var(--blue-50); }
.chip-static { gap: .25rem; padding: .2rem .3rem .2rem .85rem; cursor: default; }
.chip-static form { margin: 0; }
.chip-static a { color: inherit; text-decoration: none; }

.swatch-group { display: flex; gap: .6rem; }
.swatch-option { position: relative; display: block; width: 40px; height: 40px; border-radius: 12px; background: linear-gradient(135deg, var(--k1), var(--k2)); cursor: pointer; }
.swatch-option input { position: absolute; opacity: 0; }
.swatch-option:has(input:checked) { box-shadow: 0 0 0 3px #fff, 0 0 0 5px var(--blue-600); }
.swatch-option:has(input:focus-visible) { outline: 3px solid var(--blue-400); outline-offset: 4px; }

/* Halaman baca materi & tugas */
.reading { padding: clamp(1.25rem, 4vw, 2.25rem); }
.reading-title { margin: .75rem 0 .35rem; font-size: var(--fs-2xl); }
.reading-body { margin-top: 1.25rem; font-size: 1.02rem; line-height: 1.8; color: var(--gray-800); overflow-wrap: anywhere; }
.embed-video { aspect-ratio: 16 / 9; }
.file-card { display: flex; flex-wrap: wrap; align-items: center; gap: .85rem; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius-lg); background: var(--gray-50); }
.file-card strong { display: block; color: var(--color-heading); word-break: break-all; }
.file-card span:not(.icon-box) { font-size: .8rem; color: var(--color-text-muted); }
.file-chip {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  max-width: 100%;
  margin-top: .5rem;
  padding: .4rem .8rem;
  border: 1px solid var(--blue-200);
  border-radius: var(--radius-full);
  background: var(--blue-50);
  color: var(--blue-800);
  font-size: .85rem;
  font-weight: 600;
  text-decoration: none;
  word-break: break-all;
}
.file-chip .icon { width: 15px; height: 15px; flex: none; }
.due-box { display: flex; align-items: center; gap: .85rem; margin: 1rem 0 0; padding: .85rem 1rem; border-radius: var(--radius); background: var(--blue-50); color: var(--blue-900); }
.due-box > .icon { width: 24px; height: 24px; color: var(--blue-600); }
.due-box strong { display: block; }
.due-box span { font-size: .85rem; }
.due-box.is-past { background: var(--warning-50); color: #713f12; }
.due-box.is-past > .icon { color: var(--warning-500); }
.answer-box { padding: .9rem 1rem; border-left: 3px solid var(--blue-300); border-radius: 0 var(--radius) var(--radius) 0; background: var(--gray-50); font-size: .92rem; overflow-wrap: anywhere; }
.score-box { display: flex; align-items: flex-start; gap: 1rem; padding: 1rem; border-radius: var(--radius-lg); background: var(--success-50); color: #14532d; }
.score-box p { margin: .25rem 0 0; font-size: .9rem; }
.score-value { font-size: 2rem; font-weight: 800; line-height: 1; color: var(--success-700); }
.score-value small { font-size: .9rem; font-weight: 600; }
.pt-form { padding-top: 1rem; border-top: 1px dashed var(--color-border); }

.stat-list { display: grid; gap: .75rem; margin: 0; }
.stat-list > div { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.stat-list dt { font-size: .875rem; color: var(--color-text-muted); }
.stat-list dd { margin: 0; font-size: 1.15rem; font-weight: 800; color: var(--color-heading); }
.stat-list small { font-size: .8rem; font-weight: 500; color: var(--color-text-muted); }
.stat-list-row { display: flex; flex-wrap: wrap; gap: 1rem 2.5rem; margin: 1.25rem 0 1.5rem; }
.stat-list-row > div { flex-direction: column; gap: .1rem; }
.stat-list-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.stat-list-grid > div { flex-direction: column; align-items: flex-start; gap: .1rem; }

/* Daftar jawaban & penilaian (guru) */
.submission-list { margin: 0; padding: 0; list-style: none; }
.submission { padding: 1rem 1.25rem; border-bottom: 1px solid var(--color-border); scroll-margin-top: 90px; }
.submission:last-child { border-bottom: 0; }
.submission:target { background: var(--blue-50); }
.submission-who { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; }
.submission-who > div { flex: 1; min-width: 160px; }
.submission-who strong { display: block; color: var(--color-heading); font-size: .95rem; }
.submission-who span:not(.badge):not(.avatar) { font-size: .8rem; color: var(--color-text-muted); }
.submission-body { margin: .75rem 0 0 calc(36px + .75rem); }
.grade-form { display: grid; grid-template-columns: 110px minmax(0, 1fr) auto; gap: .5rem; margin: .75rem 0 0 calc(36px + .75rem); }
.grade-input { max-width: 120px; }
@media (max-width: 639.98px) {
  .submission-body, .grade-form { margin-left: 0; }
  .grade-form { grid-template-columns: 100px minmax(0, 1fr); }
  .grade-form .btn { grid-column: 1 / -1; }
}

/* Editor soal */
.quiz-info { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.5rem; font-size: .9rem; color: var(--color-text-muted); }
.quiz-info span { display: inline-flex; align-items: center; gap: .4rem; }
.quiz-info .icon { width: 16px; height: 16px; }
.question-list { margin: 0; padding: 0; list-style: none; }
.question-item { padding: 1.1rem 1.25rem; border-bottom: 1px solid var(--color-border); }
.question-item:last-child { border-bottom: 0; }
.question-item.is-editing { background: var(--blue-50); }
.question-head { display: flex; align-items: flex-start; gap: .75rem; }
.question-no {
  display: grid;
  place-items: center;
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--blue-600);
  color: #fff;
  font-size: .85rem;
  font-weight: 800;
}
.question-text { flex: 1; margin: .2rem 0 0; font-weight: 600; color: var(--color-heading); }
.option-preview { display: grid; grid-template-columns: minmax(0, 1fr); gap: .35rem; margin: .75rem 0 0 calc(30px + .75rem); padding: 0; list-style: none; }
@media (min-width: 640px) { .option-preview { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.option-preview li { display: flex; align-items: center; gap: .5rem; padding: .45rem .7rem; border: 1px solid var(--color-border); border-radius: 9px; font-size: .9rem; }
.option-preview li > span:first-child { display: grid; place-items: center; flex: none; width: 22px; height: 22px; border-radius: 6px; background: var(--gray-100); font-size: .75rem; font-weight: 800; }
.option-preview li.is-key { border-color: #86efac; background: var(--success-50); color: #14532d; }
.option-preview li.is-key > span:first-child { background: var(--success-600); color: #fff; }
.option-preview li.is-key .icon { margin-left: auto; color: var(--success-600); }
.option-preview li.is-wrong { border-color: #fecaca; background: var(--danger-50); color: #7f1d1d; }
.option-input { display: flex; align-items: center; gap: .6rem; margin-bottom: .6rem; }
.option-key { display: grid; place-items: center; flex: none; width: 38px; height: 38px; border: 1.5px solid var(--gray-200); border-radius: 10px; font-weight: 800; cursor: pointer; }
.option-key input { position: absolute; opacity: 0; }
.option-key:has(input:checked) { border-color: var(--success-600); background: var(--success-600); color: #fff; }
.option-key:has(input:focus-visible) { outline: 3px solid var(--blue-400); outline-offset: 2px; }
@media (min-width: 1100px) { .sticky-panel { position: sticky; top: 88px; } }

/* Pengerjaan kuis (siswa) */
.quiz { max-width: 860px; margin: 0 auto; }
.quiz-bar {
  position: sticky;
  top: 76px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: .85rem 1.1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .97);
  box-shadow: var(--shadow);
}
.quiz-bar-title { min-width: 0; }
.quiz-bar-title strong { display: block; overflow: hidden; color: var(--color-heading); text-overflow: ellipsis; white-space: nowrap; }
.quiz-bar-title span { font-size: .8rem; color: var(--color-text-muted); }
.quiz-timer {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .5rem .9rem;
  border-radius: var(--radius-full);
  background: var(--blue-50);
  color: var(--blue-800);
  font-size: 1.15rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.quiz-timer .icon { width: 18px; height: 18px; }
.quiz-timer.is-warning { background: var(--warning-50); color: var(--warning-700); }
.quiz-timer.is-danger { background: var(--danger-50); color: var(--danger-700); animation: pulse-dot 1.2s infinite; }
.quiz-nav { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1.25rem; }
.quiz-nav-item {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--gray-200);
  border-radius: 10px;
  background: #fff;
  color: var(--gray-600);
  font-size: .85rem;
  font-weight: 700;
  text-decoration: none;
}
.quiz-nav-item.is-answered { border-color: var(--blue-600); background: var(--blue-600); color: #fff; }
.quiz-question {
  margin-bottom: 1rem;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  scroll-margin-top: 160px;
}
.quiz-question legend { float: left; display: flex; gap: .75rem; width: 100%; margin-bottom: 1rem; }
.quiz-question legend + * { clear: left; }
.quiz-options { display: grid; gap: .55rem; }
.quiz-option { position: relative; display: flex; align-items: center; gap: .75rem; padding: .8rem 1rem; border: 1.5px solid var(--gray-200); border-radius: var(--radius); cursor: pointer; transition: border-color .15s, background-color .15s; }
.quiz-option:hover { border-color: var(--blue-300); }
.quiz-option input { position: absolute; opacity: 0; }
.quiz-option-key { display: grid; place-items: center; flex: none; width: 30px; height: 30px; border-radius: 8px; background: var(--gray-100); font-weight: 800; font-size: .85rem; color: var(--gray-700); }
.quiz-option-text { color: var(--gray-800); }
.quiz-option:has(input:checked) { border-color: var(--blue-600); background: var(--blue-50); }
.quiz-option:has(input:checked) .quiz-option-key { background: var(--blue-600); color: #fff; }
.quiz-option:has(input:focus-visible) { outline: 3px solid var(--blue-400); outline-offset: 2px; }
.quiz-submit { margin-top: 1.5rem; }
.quiz-intro { max-width: 760px; margin: 0 auto; }
.quiz-intro .panel-body { padding: clamp(1.5rem, 4vw, 2.5rem); }
.result-panel { max-width: 760px; margin: 0 auto; }
.result-panel .panel-body { padding: 2.5rem 1.5rem; }
.result-panel + .alert, .result-panel + .panel { max-width: 760px; margin: 1.5rem auto 0; }
.score-ring {
  position: relative;
  display: grid;
  place-items: center;
  width: 150px;
  height: 150px;
  margin: 0 auto;
  border-radius: 50%;
  background: conic-gradient(var(--blue-600) calc(var(--score) * 1%), var(--blue-100) 0);
}
.score-ring::before { content: ""; position: absolute; inset: 14px; border-radius: 50%; background: #fff; }
.score-ring span { position: relative; font-size: 2.75rem; font-weight: 800; color: var(--color-heading); }
@media (max-width: 1023.98px) { .quiz-bar { top: 72px; } }

@media print {
  .app-sidebar, .app-topbar, .app-footer, .app-overlay, .toolbar, .no-print { display: none !important; }
  .app-shell { display: block; }
  .app-body { background: #fff; }
}