.sap-app-shell, .sap-admin-shell, .sap-lecturer-shell, .sap-student-desktop-app { min-height: 100vh; display: grid; grid-template-columns: 280px minmax(0, 1fr); background: var(--sap-bg); }
.sap-desktop-app { min-height: 100vh; display: grid; grid-template-rows: auto minmax(0, 1fr); background: var(--sap-bg); }
.sap-desktop-grid { display: grid; grid-template-columns: 280px minmax(0, 1fr); min-height: calc(100vh - 72px); }
.sap-desktop-content { display: grid; align-content: start; gap: 20px; min-width: 0; padding: 28px 32px 44px; }
.sap-main { min-width: 0; height: 100vh; overflow-y: auto; overflow-x: hidden; }
.sap-content { display: grid; gap: 22px; padding: 28px 32px 44px; }
.sap-sidebar { position: sticky; top: 0; z-index: 30; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; height: 100vh; overflow: hidden; background: #fff; border-right: 1px solid var(--sap-line); }
.sap-sidebar-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 18px 16px; border-bottom: 1px solid var(--sap-line); }
.sap-sidebar-brand { display: inline-flex; align-items: center; min-width: 0; gap: 10px; color: var(--sap-ink); }
.sap-sidebar-brand span, .sap-sidebar-brand img { display: grid; place-items: center; width: 42px; height: 42px; border-radius: var(--sap-radius); background: var(--sap-blue); color: #fff; font-weight: 900; object-fit: cover; }
.sap-sidebar-brand strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sap-sidebar-nav { overflow-y: auto; padding: 12px 10px; }
.sap-sidebar-group { display: grid; gap: 5px; margin-bottom: 18px; }
.sap-sidebar-group p { margin: 8px 10px; color: #98a2b3; font-size: 12px; font-weight: 900; text-transform: uppercase; }
.sap-sidebar-link { position: relative; display: flex; align-items: center; gap: 10px; min-height: 42px; padding: 9px 10px; border-radius: var(--sap-radius); color: #344054; font-weight: 800; }
.sap-sidebar-link:hover, .sap-sidebar-link.is-active { background: var(--sap-blue-soft); color: var(--sap-blue-dark); }
.sap-sidebar-icon { display: inline-grid; place-items: center; width: 24px; flex: 0 0 24px; color: inherit; }
.sap-sidebar-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sap-sidebar-badge { display: inline-grid; place-items: center; min-width: 26px; height: 24px; border-radius: 7px; background: var(--sap-blue); color: #fff; font-size: 12px; }
.sap-sidebar-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 16px; border-top: 1px solid var(--sap-line); color: var(--sap-muted); font-size: 13px; }
.sap-drawer-close, .sap-mobile-menu { display: none; }
.sap-sidebar-collapsed .sap-app-shell, .sap-sidebar-collapsed .sap-admin-shell, .sap-sidebar-collapsed .sap-lecturer-shell, .sap-sidebar-collapsed .sap-student-desktop-app { grid-template-columns: 84px minmax(0, 1fr); }
.sap-sidebar-collapsed .sap-sidebar-brand strong, .sap-sidebar-collapsed .sap-sidebar-group p, .sap-sidebar-collapsed .sap-sidebar-label, .sap-sidebar-collapsed .sap-sidebar-badge, .sap-sidebar-collapsed .sap-sidebar-foot span, .sap-sidebar-collapsed .sap-sidebar-foot a { display: none; }
.sap-sidebar-collapsed .sap-sidebar-head { justify-content: center; }
.sap-sidebar-collapsed .sap-sidebar-link { justify-content: center; }
.sap-topbar { position: sticky; top: 0; z-index: 25; min-height: 72px; display: grid; grid-template-columns: minmax(210px, 1fr) minmax(240px, 380px) auto; align-items: center; gap: 18px; padding: 0 28px; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--sap-line); backdrop-filter: blur(10px); }
.sap-topbar-left, .sap-topbar-actions { display: flex; align-items: center; gap: 12px; min-width: 0; }
.sap-breadcrumb { display: grid; gap: 3px; }
.sap-breadcrumb span { color: var(--sap-muted); font-size: 12px; font-weight: 800; }
.sap-breadcrumb strong { font-size: 18px; }
.sap-topbar-actions { justify-content: flex-end; }
.sap-topbar-pill { padding: 8px 10px; border-radius: 999px; background: #eef2f7; color: #344054; font-size: 13px; font-weight: 900; }
.sap-avatar-link { display: inline-flex; align-items: center; gap: 9px; color: var(--sap-ink); font-weight: 800; }
.sap-drawer-overlay { display: none; }
.sap-hero-panel, .sap-profile-hero, .sap-page-header { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 24px; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); background: linear-gradient(135deg, #fff, #eff7ff); box-shadow: var(--sap-shadow); }
.sap-profile-hero { justify-content: flex-start; }
.sap-lecturer-hero { background: linear-gradient(135deg, #fff, #eefaf5); }
.sap-hero-panel h1, .sap-profile-hero h1, .sap-page-header h1 { margin: 0; font-size: 30px; line-height: 1.15; }
.sap-hero-panel p, .sap-profile-hero p, .sap-page-header span { color: var(--sap-muted); }
.sap-eyebrow { margin: 0 0 5px; color: var(--sap-blue-dark); font-weight: 900; }
.sap-quick-actions, .sap-button-row, .sap-form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.sap-stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; }
.sap-stat-grid-dense { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.sap-stat-grid-mini { grid-template-columns: repeat(auto-fit, minmax(135px, 1fr)); }
.sap-panel, .sap-stat-card, .sap-class-card, .sap-assignment-card, .sap-grade-card, .sap-data-card { padding: 20px; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); background: #fff; box-shadow: 0 10px 28px rgba(31, 45, 68, .07); }
.sap-stat-card span { color: var(--sap-muted); font-weight: 800; font-size: 13px; }
.sap-stat-card strong { display: block; margin-top: 8px; font-size: 30px; line-height: 1; }
.sap-dashboard-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.sap-wide-panel { grid-column: 1 / -1; }
.sap-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 14px; }
.sap-panel h2, .sap-panel h3 { margin-top: 0; }
.sap-card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.sap-class-card, .sap-assignment-card, .sap-grade-card { display: grid; gap: 12px; }
.sap-meta-line { display: flex; flex-wrap: wrap; gap: 10px 16px; color: var(--sap-muted); font-size: 13px; }
.sap-health-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.sap-health-item { display: flex; align-items: center; gap: 10px; padding: 10px; border-radius: var(--sap-radius); background: #f8fafc; }
.sap-table-wrap { width: 100%; overflow-x: auto; }
.sap-table { width: 100%; border-collapse: separate; border-spacing: 0; min-width: 780px; }
.sap-table th { position: sticky; top: 0; z-index: 1; background: #f8fafc; color: #475467; font-size: 12px; text-align: left; text-transform: uppercase; }
.sap-table th, .sap-table td { padding: 13px 12px; border-bottom: 1px solid var(--sap-line); vertical-align: middle; }
.sap-table td small { display: block; color: var(--sap-muted); margin-top: 3px; }
.sap-mobile-cards { display: none; }
.sap-filter-bar { display: grid; grid-template-columns: minmax(220px, 1fr) 180px 180px auto; gap: 10px; margin-bottom: 16px; }
.sap-sectioned-form { gap: 20px; }
.sap-form-section { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding: 16px; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); background: #fbfdff; }
.sap-form-section h3, .sap-span-2, .sap-form-actions { grid-column: 1 / -1; }
.sap-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.sap-avatar-upload { display: grid; place-items: center; min-height: 112px; border: 1px dashed #cfd8e5; border-radius: var(--sap-radius); background: #fff; }
.sap-info-list { display: grid; gap: 10px; margin-top: 18px; }
.sap-info-list div { display: flex; justify-content: space-between; gap: 12px; padding-top: 10px; border-top: 1px solid var(--sap-line); }
.sap-info-list span { color: var(--sap-muted); }
.sap-profile-summary { display: grid; justify-items: center; gap: 8px; text-align: center; }
.sap-submission-layout { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 18px; }
.sap-pdf-viewer { width: 100%; min-height: 640px; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); background: #f8fafc; }
.sap-image-preview { width: 100%; max-height: 640px; object-fit: contain; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); background: #f8fafc; }
.sap-file-preview { display: grid; gap: 8px; padding: 28px; border: 1px dashed #cfd8e5; border-radius: var(--sap-radius); background: #fbfdff; }
.sap-rating-bar { display: grid; grid-template-columns: 42px minmax(0, 1fr) 36px; align-items: center; gap: 10px; margin: 8px 0; }
.sap-rating-bar b { height: 8px; border-radius: 999px; background: var(--sap-green); }
.sap-feedback-quote, .sap-grade-card blockquote { margin: 12px 0 0; padding: 12px; border-left: 4px solid var(--sap-blue); background: #f8fafc; border-radius: 0 var(--sap-radius) var(--sap-radius) 0; color: #475467; }
.sap-feedback-form, .sap-feedback-item { display: grid; gap: 12px; padding: 16px; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); margin-bottom: 14px; background: #fff; }
.sap-rating-input { display: flex; flex-wrap: wrap; gap: 8px; }
.sap-rating-input label { display: inline-flex; }
.sap-rating-input input { position: absolute; opacity: 0; }
.sap-rating-input span { display: inline-flex; padding: 8px 10px; border-radius: 999px; background: #fff4df; color: #b54708; font-weight: 900; cursor: pointer; }
.sap-rating-input input:checked + span { background: #f59e0b; color: #fff; }
.sap-public-page { min-height: 100vh; overflow-y: auto; background: linear-gradient(135deg, #eef6ff, #f7fbff 45%, #edfdf4); }
.sap-public-nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px clamp(18px, 4vw, 54px); background: rgba(255,255,255,.9); border-bottom: 1px solid var(--sap-line); }
.sap-public-hero { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr); gap: 28px; align-items: center; padding: clamp(34px, 7vw, 78px) clamp(18px, 6vw, 78px); }
.sap-public-hero h1 { margin: 0; font-size: clamp(36px, 6vw, 66px); line-height: 1.05; }
.sap-public-hero p { color: var(--sap-muted); font-size: 18px; max-width: 720px; }
.sap-public-statbox { display: grid; gap: 12px; }
.sap-public-statbox div { padding: 18px; border-radius: var(--sap-radius); background: #fff; box-shadow: var(--sap-shadow); }
.sap-public-statbox strong { display: block; font-size: 34px; }
.sap-public-section { padding: 0 clamp(18px, 6vw, 78px) 70px; }
.sap-section-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 18px; }
.sap-section-head input { max-width: 360px; }
.sap-lecturer-public-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.sap-lecturer-card { display: flex; gap: 14px; padding: 18px; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); background: #fff; box-shadow: var(--sap-shadow); }
.sap-lecturer-card h3 { margin: 0 0 5px; }
.sap-lecturer-card p { margin: 0 0 8px; color: var(--sap-blue-dark); font-weight: 900; }
.sap-lecturer-card span { color: var(--sap-muted); }
.sap-auth-page { min-height: 100vh; overflow-y: auto; display: grid; place-items: center; padding: 28px; background: linear-gradient(140deg, rgba(52,120,212,.12), transparent 42%), #f7fbff; }
.sap-auth-card { width: min(460px, 100%); padding: 30px; border-radius: var(--sap-radius); background: #fff; box-shadow: var(--sap-shadow); }
.sap-auth-card h1 { margin: 6px 0 12px; font-size: 32px; line-height: 1.1; }
.sap-auth-card p { color: var(--sap-muted); }
.sap-auth-mark { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 50%; background: var(--sap-blue); color: #fff; font-weight: 900; }
.sap-auth-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.sap-auth-switch { text-align: center; margin-top: 18px; }

/* v1.0.6 hierarchy and map UI hardening */
html, body, .sap-standalone-portal { max-width: 100%; overflow-x: hidden; }
.sap-page-contained { max-width: 1480px; width: 100%; margin: 0 auto; }
.sap-app-shell, .sap-admin-shell, .sap-lecturer-shell, .sap-student-desktop-app { grid-template-columns: 280px minmax(0, 1fr); height: 100vh; overflow: hidden; }
.sap-sidebar { position: sticky; top: 0; height: 100vh; overflow: hidden; align-self: start; }
.sap-sidebar-nav { min-height: 0; max-height: calc(100vh - 144px); overflow-y: auto; overscroll-behavior: contain; }
.sap-main { height: 100vh; overflow-y: auto; overflow-x: hidden; }
.sap-content, .sap-desktop-content { min-width: 0; box-sizing: border-box; }
.sap-page-header { align-items: flex-start; flex-wrap: wrap; }
.sap-page-header > div { min-width: 260px; }
.sap-quick-actions { justify-content: flex-end; }
.sap-card-title { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; }
.sap-tabs { display: flex; gap: 8px; overflow-x: auto; padding: 8px; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); background: #fff; box-shadow: var(--sap-shadow); }
.sap-tabs a { white-space: nowrap; padding: 10px 14px; border-radius: 10px; font-weight: 900; color: #475467; }
.sap-tabs a:hover, .sap-tabs a.is-active { background: var(--sap-blue-soft); color: var(--sap-blue-dark); }
.sap-list-row { display:flex; align-items:center; justify-content:space-between; gap:14px; padding: 14px 0; border-bottom: 1px solid var(--sap-line); }
.sap-list-row:last-child { border-bottom: 0; }
.sap-list-row strong, .sap-list-row small { display:block; }
.sap-list-row small { color: var(--sap-muted); margin-top: 4px; }
.sap-map-editor-shell { display: grid; gap: 10px; }
.sap-map-editor, .sap-real-map { width: 100%; min-height: 420px; border: 1px solid var(--sap-line); border-radius: var(--sap-radius); overflow: hidden; background: linear-gradient(135deg,#eef6ff,#f8fafc); }
.sap-map-editor .leaflet-container, .sap-real-map .leaflet-container { min-height: 420px; }
.sap-map-tools { display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap; color:var(--sap-muted); font-size:13px; }
.sap-map-fallback-note { display:grid; place-items:center; min-height:100%; padding:24px; color:var(--sap-muted); font-weight:800; text-align:center; }
.sap-status-grid { grid-template-columns: repeat(auto-fit, minmax(130px,1fr)); }
.sap-attendance-desktop-grid { grid-template-columns: minmax(0, 1.25fr) minmax(360px, .75fr); align-items:start; }
.sap-attendance-history { grid-column: 1 / -1; }
.sap-real-map { min-height: 560px; }
.sap-map-mobile-bg.sap-real-map { min-height: 100vh; border:0; border-radius:0; }
.sap-form input, .sap-form select, .sap-form textarea, .sap-filter-bar input, .sap-filter-bar select { box-sizing:border-box; max-width: 100%; }
.sap-form-section { align-items:start; }
.sap-panel { min-width: 0; }
.sap-table-wrap { max-width: 100%; }
.sap-badge-open, .sap-badge-active { background:#e8fff3; color:#027a48; }
.sap-badge-closed, .sap-badge-inactive { background:#f2f4f7; color:#475467; }
.sap-badge-info { background:var(--sap-blue-soft); color:var(--sap-blue-dark); }
@media (max-width: 1024px) {
  .sap-app-shell, .sap-admin-shell, .sap-lecturer-shell, .sap-student-desktop-app { grid-template-columns: 1fr; height:auto; min-height:100vh; overflow:visible; }
  .sap-sidebar { position: fixed; inset:0 auto 0 0; width: 300px; transform: translateX(-105%); transition: transform .22s ease; z-index:1000; box-shadow: 18px 0 40px rgba(15,23,42,.2); }
  .sap-drawer-open .sap-sidebar { transform: translateX(0); }
  .sap-main { height:auto; min-height:100vh; overflow:visible; }
  .sap-topbar { grid-template-columns: auto 1fr auto; padding: 10px 14px; min-height: 64px; }
  .sap-content, .sap-desktop-content { padding: 18px; }
  .sap-dashboard-grid, .sap-attendance-desktop-grid, .sap-submission-layout { grid-template-columns: 1fr; }
  .sap-form-grid, .sap-form-section { grid-template-columns: 1fr; }
  .sap-map-editor, .sap-real-map { min-height: 360px; }
  .sap-public-hero { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sap-page-header, .sap-hero-panel, .sap-profile-hero { padding: 18px; }
  .sap-page-header h1, .sap-hero-panel h1 { font-size: 26px; }
  .sap-quick-actions, .sap-button-row { width: 100%; justify-content:flex-start; }
  .sap-button { min-height: 42px; }
  .sap-stat-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .sap-list-row { align-items:flex-start; flex-direction:column; }
  .sap-table { min-width: 680px; }
  .sap-attendance-desktop { display:none; }
  .sap-attendance-mobile { display:block; }
  .sap-mobile-presence-card { max-height: 58vh; overflow-y:auto; }
}
@media (min-width: 769px) {
  .sap-attendance-mobile { display:none; }
}

/* v1.0.7 functional/layout hardening */
.sap-standalone-portal * { box-sizing: border-box; }
.sap-standalone-portal { min-height: 100vh; background: var(--sap-bg); color: var(--sap-ink); overflow-x: hidden; }
.sap-app-shell, .sap-admin-shell, .sap-lecturer-shell { width: 100%; max-width: 100vw; }
.sap-topbar { min-width: 0; }
.sap-topbar > * { min-width: 0; }
.sap-topbar input[type="search"], .sap-topbar input[type="text"] { min-width: 220px; max-width: 100%; }
.sap-content, .sap-desktop-content { width: 100%; max-width: 100%; }
.sap-dashboard-grid, .sap-form-grid, .sap-stat-grid, .sap-card-grid { min-width: 0; }
.sap-card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 16px; }
.sap-dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); gap: 18px; align-items: start; }
.sap-enrollment-layout { grid-template-columns: minmax(320px, .7fr) minmax(0, 1fr); }
.sap-form-stacked { display: grid; gap: 16px; }
.sap-button-block { width: 100%; justify-content: center; }
.sap-click-row { text-decoration: none; color: inherit; border: 1px solid var(--sap-line); border-radius: 14px; padding: 14px; margin-bottom: 10px; background: #fff; }
.sap-help-panel p { margin: 0; color: var(--sap-muted); }
.sap-form-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.sap-form label small { display:block; margin-top:6px; color: var(--sap-muted); font-size: 12px; }
.sap-attendance-result { margin-top: 12px; padding: 12px 14px; border-radius: 12px; min-height: 44px; background: #f8fafc; border: 1px solid var(--sap-line); }
.sap-attendance-result:empty { display: none; }
.sap-attendance-result.is-success { display:block; background:#e8fff3; color:#027a48; border-color:#abefc6; }
.sap-attendance-result.is-error { display:block; background:#fff1f3; color:#b42318; border-color:#fecdd3; }
.sap-validation-grid > div { min-width: 0; }
.sap-validation-grid strong { overflow-wrap: anywhere; }
.sap-mobile-content { padding: 16px 16px 110px; display:grid; gap:16px; }
@media (max-width: 1180px) {
  .sap-stat-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
  .sap-enrollment-layout { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sap-student-page.sap-student-desktop-app { display: none; }
  .sap-student-mobile-shell { display: block !important; }
  .sap-topbar-search { display: none; }
  .sap-topbar { gap: 8px; }
  .sap-sidebar { width: min(86vw, 310px); }
  .sap-stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .sap-dashboard-grid, .sap-enrollment-layout { grid-template-columns: 1fr; gap: 14px; }
  .sap-page-header { display: grid; gap: 14px; }
  .sap-page-header > div { min-width: 0; }
  .sap-content, .sap-desktop-content { padding: 14px; }
  .sap-panel { padding: 16px; border-radius: 16px; }
  .sap-card-grid { grid-template-columns: 1fr; }
  .sap-table-wrap { overflow-x: auto; }
  .sap-map-editor, .sap-real-map { min-height: 320px; }
  .sap-attendance-mobile .sap-mobile-presence-card { left: 12px; right: 12px; bottom: 94px; width: auto; }
}
@media (min-width: 769px) {
  .sap-student-mobile-shell { display: none !important; }
}