:root{
  --primary:#0b5cab;--primary-dark:#08457f;--nav:#0b1f36;--bg:#f4f7fb;--surface:#fff;
  --text:#172033;--muted:#687386;--border:#dfe5ef;--danger:#b42318;--success:#087443;
  --warning:#9a6700;--info:#175cd3;--shadow:0 10px 30px rgba(24,39,75,.08);
  font-family:Inter,"Noto Sans TC","Microsoft JhengHei",sans-serif;color:var(--text);background:var(--bg)
}
*{box-sizing:border-box}html{min-height:100%}body{margin:0;min-height:100vh;background:var(--bg)}
button,input,select,textarea{font:inherit}.hidden{display:none!important}button:disabled{opacity:.55;cursor:not-allowed}
.boot-view{min-height:100vh;display:grid;place-content:center;justify-items:center;gap:10px;background:linear-gradient(135deg,#eef6ff,#f7f9fc)}
.boot-view img{width:72px;height:72px}.boot-view span{color:var(--muted)}
.login-view{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(135deg,#0b5cab,#0b1f36)}
.login-card{width:min(430px,100%);background:#fff;padding:30px;border-radius:18px;box-shadow:0 30px 80px rgba(0,0,0,.28);display:flex;flex-direction:column;gap:14px}
.login-card>img{width:64px;height:64px;margin:auto}.login-card h1{text-align:center;margin:0;font-size:24px}.login-card p{text-align:center;color:var(--muted);margin:0 0 8px}
.login-card label{display:flex;flex-direction:column;gap:6px;font-weight:700}.remember{flex-direction:row!important;align-items:center;font-weight:500!important}
.form-message{min-height:22px;color:var(--danger);font-size:14px}.link-button{border:0;background:transparent;color:var(--primary);cursor:pointer;padding:4px}
.app-shell{display:flex;min-height:100vh}.sidebar{width:270px;background:var(--nav);color:#fff;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;z-index:30;box-shadow:8px 0 24px rgba(0,0,0,.08)}
.brand{display:flex;align-items:center;gap:12px;padding:22px 18px;border-bottom:1px solid rgba(255,255,255,.1)}.brand img{width:42px;height:42px}.brand strong,.brand span{display:block}.brand span{font-size:12px;color:#b8c7d9;margin-top:2px}
.main-nav{padding:14px 10px;overflow:auto;flex:1}.nav-item,.nav-group-toggle{width:100%;border:0;background:transparent;color:#eaf2fb;border-radius:10px;padding:12px 14px;text-align:left;cursor:pointer;display:flex;align-items:center;justify-content:space-between;margin:2px 0}
.nav-item:hover,.nav-group-toggle:hover,.nav-item.active,.nav-group-toggle.active{background:rgba(255,255,255,.12)}.nav-children{padding-left:12px}.nav-child{font-size:14px;color:#d5e0ec}.sidebar-footer{padding:12px;border-top:1px solid rgba(255,255,255,.1)}
.ghost-button{width:100%;padding:10px;border:1px solid rgba(255,255,255,.25);border-radius:9px;background:transparent;color:#fff;cursor:pointer}
.main-area{margin-left:270px;min-width:0;flex:1}.topbar{min-height:82px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:14px;padding:12px 28px;position:sticky;top:0;z-index:20}
.topbar h1{font-size:22px;margin:0}.topbar p{font-size:13px;color:var(--muted);margin:3px 0 0}.topbar-user{margin-left:auto;text-align:right;font-size:13px;color:var(--muted)}.topbar-user span,.topbar-user strong{display:block}.topbar-user strong{color:var(--text);margin-top:3px}
.icon-button{display:none;border:0;background:transparent;font-size:24px;cursor:pointer}.page-content{padding:28px;max-width:1500px;margin:auto;outline:none}
.page-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}.page-heading h2{margin:0}.page-heading p{margin:5px 0 0;color:var(--muted)}
.grid{display:grid;gap:18px}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:20px;box-shadow:var(--shadow)}.card h2,.card h3{margin-top:0}.stat{font-size:30px;font-weight:700;margin:8px 0}.muted{color:var(--muted)}
.badge{display:inline-flex;align-items:center;padding:4px 9px;border-radius:99px;font-size:12px;font-weight:700}.badge.success{background:#dcfae6;color:var(--success)}.badge.warning{background:#fff3cd;color:var(--warning)}.badge.danger{background:#fee4e2;color:var(--danger)}.badge.info{background:#e8f1ff;color:var(--info)}.badge.neutral{background:#eef1f5;color:#475467}
.toolbar{display:flex;gap:10px;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap}.toolbar-actions{display:flex;gap:8px;flex-wrap:wrap}
.primary-button,.secondary-button,.danger-button{border:0;border-radius:9px;padding:10px 14px;cursor:pointer;font-weight:700}.primary-button{background:var(--primary);color:#fff}.primary-button:hover{background:var(--primary-dark)}.secondary-button{background:#e9eef6;color:#25344d}.danger-button{background:#fee4e2;color:var(--danger)}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:11px}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:12px;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}.data-table tr:last-child td{border-bottom:0}.data-table th{font-size:13px;color:var(--muted);background:#f9fafc}.data-table tr:hover td{background:#fbfcfe}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.form-grid label,.field{display:flex;flex-direction:column;gap:7px;font-weight:700;font-size:14px}.form-grid input,.form-grid select,.form-grid textarea,.field input,.field select,.field textarea{border:1px solid var(--border);border-radius:9px;padding:11px;background:#fff;color:var(--text);width:100%}.full{grid-column:1/-1}
.permission-row{display:grid;grid-template-columns:1fr 180px;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--border)}.permission-row:last-child{border-bottom:0}.empty-state{text-align:center;padding:48px 20px;color:var(--muted)}
.notice{padding:13px 15px;border-radius:10px;border:1px solid var(--border);margin-bottom:16px}.notice.info{background:#f1f7ff;border-color:#b9d6ff}.notice.warning{background:#fff9e8;border-color:#f2d58b}.notice.danger{background:#fff1f0;border-color:#f5b7b1}
.list{display:grid;gap:10px}.list-item{display:flex;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px solid var(--border)}.list-item:last-child{border-bottom:0}.list-item p{margin:4px 0 0;color:var(--muted);font-size:13px}
.status-actions{display:flex;gap:6px;flex-wrap:wrap}.section-title{margin:24px 0 12px}.check-list{display:grid;gap:10px}.check-row{display:grid;grid-template-columns:minmax(180px,1fr) 130px minmax(180px,1fr);gap:10px;align-items:center;border-bottom:1px solid var(--border);padding:10px 0}.check-row:last-child{border-bottom:0}
.file-list{display:grid;gap:8px;margin-top:10px}.file-item{display:flex;justify-content:space-between;gap:10px;padding:9px 11px;background:#f7f9fc;border-radius:8px}.small{font-size:12px}.nowrap{white-space:nowrap}
.modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px}.modal-backdrop{position:absolute;inset:0;background:rgba(11,31,54,.55)}.modal-card{position:relative;width:min(920px,100%);max-height:90vh;background:#fff;border-radius:16px;box-shadow:0 30px 90px rgba(0,0,0,.3);display:flex;flex-direction:column;overflow:hidden}.modal-header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:18px 20px;border-bottom:1px solid var(--border)}.modal-header h2{margin:0}.modal-header p{margin:4px 0 0;color:var(--muted)}.modal-close{display:block!important}.modal-body{padding:20px;overflow:auto}.modal-footer{padding:14px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap}
.toast{position:fixed;right:24px;bottom:24px;background:#172033;color:#fff;padding:12px 16px;border-radius:10px;opacity:0;transform:translateY(15px);pointer-events:none;transition:.2s;z-index:200;max-width:min(440px,calc(100vw - 48px))}.toast.show{opacity:1;transform:translateY(0)}
.sidebar-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:25}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}.form-grid.cols-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.sidebar{transform:translateX(-100%);transition:.2s}.sidebar.open{transform:translateX(0)}.main-area{margin-left:0}.icon-button{display:block}.topbar{padding:10px 16px}.topbar-user #currentTime{display:none}.page-content{padding:18px}.grid-4,.grid-3,.grid-2,.form-grid,.form-grid.cols-3{grid-template-columns:1fr}.permission-row{grid-template-columns:1fr}.full{grid-column:auto}.check-row{grid-template-columns:1fr}.page-heading{flex-direction:column}.modal{padding:0}.modal-card{width:100%;height:100%;max-height:none;border-radius:0}}

/* V1.0.2 Calendar range controls and dashboard leave status */
.empty-state.compact{padding:24px 12px}
.dashboard-leave-summary{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.dashboard-leave-list{display:grid;gap:8px}
.dashboard-leave-person{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border:1px solid var(--border);border-radius:9px;background:#f8fafc}
.dashboard-leave-person span{font-size:12px;font-weight:700;color:var(--success);background:#dcfae6;border-radius:99px;padding:4px 9px}
.dashboard-leave-warning{margin:0}

.calendar-status-panel{margin-bottom:16px;padding:16px 18px}
.calendar-single-status{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;padding-bottom:16px;border-bottom:1px solid var(--border)}
.compact-date-field{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700;color:var(--text)}
.compact-date-input{width:170px;max-width:100%;border:1px solid var(--border);border-radius:9px;padding:9px 10px;background:#fff;color:var(--text)}
.calendar-edit-status-button{min-height:39px}
.calendar-multi-status{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;padding-top:16px}
.calendar-multi-status h3{margin:0 0 4px;font-size:16px}.calendar-multi-status p{margin:0;font-size:13px}
.calendar-range-controls{display:flex;align-items:flex-end;justify-content:flex-end;gap:10px;flex-wrap:wrap}

.calendar-shell{background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);overflow:hidden}
.calendar-toolbar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:14px;padding:13px 16px;border-bottom:1px solid var(--border)}
.calendar-toolbar h3{margin:0;text-align:center;font-size:19px}.calendar-navigation{display:flex;gap:8px}.calendar-selection-hint{display:flex;justify-content:flex-end;color:var(--muted);font-size:12px;text-align:right}
.calendar-weekdays{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));background:#f8fafc;border-bottom:1px solid var(--border)}
.calendar-weekdays div{text-align:center;padding:8px 4px;font-size:12px;font-weight:700;color:var(--muted)}
.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr))}
.calendar-day{min-width:0;min-height:82px;padding:6px;border-right:1px solid var(--border);border-bottom:1px solid var(--border);background:#fff;cursor:pointer;transition:background .15s ease,box-shadow .15s ease}
.calendar-day:nth-child(7n){border-right:0}.calendar-day:nth-last-child(-n+7){border-bottom:0}.calendar-day:hover{background:#f8fbff}.calendar-day:focus-visible{outline:3px solid rgba(11,92,171,.24);outline-offset:-3px}.calendar-day.outside{background:#fafbfc;color:#98a2b3}.calendar-day.today{box-shadow:inset 0 0 0 2px var(--primary);position:relative;z-index:1}.calendar-day.selected{background:#eef5ff;box-shadow:inset 0 0 0 2px #7fb0e4;position:relative;z-index:2}.calendar-day.today.selected{box-shadow:inset 0 0 0 3px var(--primary)}
.calendar-day-head{display:flex;justify-content:space-between;align-items:center;gap:4px;margin-bottom:4px}.calendar-day-number{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:50%;font-weight:700;font-size:12px}.calendar-day.today .calendar-day-number{background:var(--primary);color:#fff}.today-label{font-size:9px;font-weight:700;color:var(--primary)}
.calendar-events{display:grid;gap:3px;min-width:0}.calendar-event{display:block;width:100%;min-width:0;border:0;border-radius:5px;padding:4px 5px;text-align:left;font-size:10px;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.calendar-event.general{background:#eef4ff;color:#1849a9}.calendar-more{font-size:9px;color:var(--muted);padding-left:3px}
.leave-status-form{display:grid;gap:14px}.leave-date-fields{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}.leave-note-field{display:flex;flex-direction:column;gap:7px;font-weight:700;font-size:14px}.leave-note-field textarea{border:1px solid var(--border);border-radius:9px;padding:11px;background:#fff;color:var(--text);width:100%}.leave-public-detail{text-align:center;padding:16px}.leave-public-detail h3{margin:14px 0 8px}.leave-public-detail p{margin:6px 0}.leave-privacy-note{margin:0}

@media(max-width:1100px){.calendar-multi-status{align-items:flex-start;flex-direction:column}.calendar-range-controls{justify-content:flex-start}.grid.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.grid-3>.card:last-child{grid-column:1/-1}}
@media(max-width:820px){.grid.grid-3{grid-template-columns:1fr}.grid.grid-3>.card:last-child{grid-column:auto}.calendar-status-panel{padding:14px}.calendar-single-status{align-items:flex-start;flex-direction:column}.calendar-edit-status-button{width:100%}.calendar-range-controls{width:100%;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.calendar-range-controls .compact-date-field,.calendar-range-controls .compact-date-input{width:100%}.calendar-range-controls button{grid-column:1/-1;width:100%}.calendar-toolbar{grid-template-columns:1fr auto;padding:10px 12px}.calendar-toolbar h3{grid-column:1/-1;grid-row:1;text-align:left;font-size:17px}.calendar-navigation{grid-column:1;grid-row:2}.calendar-selection-hint{grid-column:2;grid-row:2;font-size:10px;max-width:150px}.calendar-day{min-height:68px;padding:4px}.calendar-weekdays div{padding:7px 2px;font-size:11px}.calendar-day-number{width:21px;height:21px;font-size:11px}.today-label{display:none}.calendar-event{padding:3px;font-size:8px;border-radius:4px}.calendar-more{font-size:8px}}
@media(max-width:480px){.compact-date-input{width:150px}.calendar-toolbar{display:flex;align-items:flex-start;flex-wrap:wrap}.calendar-toolbar h3{width:100%;order:-1}.calendar-selection-hint{margin-left:auto;max-width:130px}.calendar-day{min-height:58px}.calendar-day-head{margin-bottom:2px}.calendar-events{gap:2px}.calendar-range-controls{grid-template-columns:1fr}.calendar-range-controls button{grid-column:auto}.leave-date-fields{display:grid;grid-template-columns:1fr;width:100%}.leave-date-fields .compact-date-input{width:100%}}

/* V1.0.3 Calendar UI/UX and personal events */
.selected-date-panel{margin-bottom:18px;padding:20px;border:1px solid #d8e4f2;background:linear-gradient(135deg,#fff 0%,#f8fbff 100%)}
.selected-date-topline{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.selected-date-field{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:800}.selected-date-input{width:190px;border:1px solid #cfd9e7;border-radius:10px;padding:10px 12px;background:#fff;font-weight:700}
.selected-date-summary{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 0 12px}.selected-date-summary h2{margin:3px 0 0;font-size:24px}.eyebrow{display:block;color:var(--primary);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.event-count{display:inline-flex;align-items:center;justify-content:center;min-width:48px;padding:6px 10px;border-radius:99px;background:#eaf2fb;color:var(--primary-dark);font-size:12px;font-weight:800}
.selected-date-events{display:grid;gap:8px}.personal-event-row{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;border:1px solid var(--border);border-radius:10px;background:#fff;padding:11px 13px;text-align:left;color:var(--text);cursor:pointer}.personal-event-row:hover{border-color:#aac7e6;background:#f7fbff}.personal-event-row small{color:var(--primary);font-weight:700}.empty-date-message{padding:18px;border:1px dashed #cfd9e7;border-radius:10px;background:#fff;color:var(--muted);text-align:center;font-size:13px}
.calendar-shell{margin-bottom:18px}.calendar-event.personal{background:#eaf2fb;color:#174f86;border:1px solid #c7dbef;cursor:pointer}.calendar-event.general{border:0}
.calendar-status-panel{padding:20px}.calendar-single-status{justify-content:space-between;align-items:center}.calendar-single-status h3,.calendar-multi-status h3{margin:3px 0 5px;font-size:17px}.calendar-single-status p{margin:0;font-size:13px}.calendar-single-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}
.calendar-multi-status{align-items:center}.calendar-day{min-height:74px}.calendar-toolbar{background:#fff}.calendar-weekdays{background:#f6f8fb}
@media(max-width:820px){.selected-date-panel{padding:15px}.selected-date-topline{align-items:stretch;flex-direction:column}.selected-date-topline .primary-button{width:100%}.selected-date-input{width:100%}.selected-date-summary h2{font-size:21px}.calendar-single-status{align-items:flex-start}.calendar-single-actions{width:100%;justify-content:flex-start}.calendar-single-actions .primary-button{width:100%}.calendar-day{min-height:62px}}

/* V1.0.3B Calendar visual hierarchy: richer restrained palette, stronger borders, weekend emphasis */
.selected-date-panel{
  border:2px solid #7aa7d6;
  background:linear-gradient(180deg,#f7fbff 0%,#eef6ff 100%);
  box-shadow:0 12px 28px rgba(35,82,132,.10);
}
.selected-date-input,.compact-date-input{
  border:2px solid #8da9c4;
  background:#fff;
}
.selected-date-input:focus,.compact-date-input:focus{
  outline:3px solid rgba(11,92,171,.16);
  border-color:#0b5cab;
}
.personal-event-row{
  border:2px solid #a9bfd7;
  background:#fff;
}
.personal-event-row:hover{
  border-color:#467eaf;
  background:#f3f8fd;
}
.calendar-shell{
  border:2px solid #546b83;
  box-shadow:0 14px 34px rgba(34,52,73,.11);
}
.calendar-toolbar{
  background:linear-gradient(180deg,#f8fbfe 0%,#edf3f8 100%);
  border-bottom:2px solid #8597aa;
}
.calendar-weekdays{
  background:#e8eef4;
  border-bottom:2px solid #8597aa;
}
.calendar-weekdays div{
  color:#34465a;
}
.calendar-weekdays div:first-child{background:#d9c6c8;color:#762f37}
.calendar-weekdays div:last-child{background:#c8d6e4;color:#214f78}
.calendar-day{
  border-right:1.5px solid #aab7c5;
  border-bottom:1.5px solid #aab7c5;
}
.calendar-day.holiday.sunday{
  background:#eadbdd;
  color:#6f2c35;
}
.calendar-day.holiday.saturday{
  background:#d9e4ee;
  color:#214f78;
}
.calendar-day.holiday:hover{filter:brightness(.98)}
.calendar-day.holiday.outside{opacity:.66}
.calendar-day.holiday.selected{
  background:#c8daea;
  box-shadow:inset 0 0 0 3px #356d9d;
}
.calendar-day.holiday.sunday.selected{
  background:#dfc6c9;
  box-shadow:inset 0 0 0 3px #934751;
}
.calendar-status-panel{
  border:2px solid #759987;
  background:linear-gradient(180deg,#fbfdfc 0%,#f1f8f4 100%);
  box-shadow:0 12px 28px rgba(38,91,63,.09);
}
.calendar-single-status{
  border-bottom:2px solid #a6bbae;
}
.calendar-multi-status{
  background:#edf4f0;
  border:1px solid #b1c6b9;
  border-radius:12px;
  padding:15px;
  margin-top:14px;
}
.calendar-event.personal{
  background:#dceaf6;
  color:#174f86;
  border:1.5px solid #7fa6c9;
}
.primary-button{box-shadow:0 4px 10px rgba(11,92,171,.16)}
.secondary-button{border:1.5px solid #9aabba;background:#e7edf3}

/* V1.0.4 Global UI/UX1 design system: consistent borders + layered blue palette */
:root{
  --blue-25:#f7fbff;
  --blue-50:#eef7ff;
  --blue-100:#dceeff;
  --blue-200:#bddcff;
  --blue-300:#8fc4f4;
  --blue-400:#4da3e6;
  --blue-500:#1677c8;
  --blue-600:#0b5cab;
  --blue-700:#084a8c;
  --blue-800:#073a70;
  --blue-900:#082b4c;
  --azure:#0f8fcf;
  --surface-border:#7898b8;
  --surface-border-strong:#536f8c;
  --surface-border-soft:#a9bfd4;
  --primary:var(--blue-600);
  --primary-dark:var(--blue-800);
  --nav:var(--blue-900);
  --border:var(--surface-border);
  --shadow:0 12px 28px rgba(24,72,116,.10);
}

/* Shared surfaces: same border colour and weight across every feature */
.card,.calendar-shell,.selected-date-panel,.calendar-status-panel,.table-wrap,.modal-card,.notice,
.personal-event-row,.dashboard-leave-person,.empty-date-message{
  border:2px solid var(--surface-border);
}
.card,.table-wrap,.modal-card,.notice,.dashboard-leave-person,.empty-date-message{
  box-shadow:var(--shadow);
}
.card{
  background:linear-gradient(180deg,#fff 0%,var(--blue-25) 100%);
}
.card:nth-of-type(3n+1){background:linear-gradient(180deg,#fff 0%,var(--blue-25) 100%)}
.card:nth-of-type(3n+2){background:linear-gradient(180deg,#fff 0%,var(--blue-50) 100%)}
.card:nth-of-type(3n){background:linear-gradient(180deg,#fff 0%,#f2f9fd 100%)}

/* Inputs and editable controls */
.form-grid input,.form-grid select,.form-grid textarea,.field input,.field select,.field textarea,
.leave-note-field textarea,.selected-date-input,.compact-date-input{
  border:2px solid var(--surface-border-soft);
  background:#fff;
}
.form-grid input:focus,.form-grid select:focus,.form-grid textarea:focus,
.field input:focus,.field select:focus,.field textarea:focus,.leave-note-field textarea:focus,
.selected-date-input:focus,.compact-date-input:focus{
  outline:3px solid rgba(15,143,207,.16);
  border-color:var(--azure);
}

/* Buttons use related blue tones rather than unrelated colours */
.primary-button{
  background:linear-gradient(180deg,var(--blue-500),var(--blue-700));
  border:2px solid var(--blue-800);
  box-shadow:0 5px 12px rgba(8,74,140,.20);
}
.primary-button:hover{background:linear-gradient(180deg,var(--blue-600),var(--blue-800))}
.secondary-button{
  background:linear-gradient(180deg,var(--blue-50),var(--blue-100));
  color:var(--blue-800);
  border:2px solid var(--surface-border);
}
.secondary-button:hover{background:var(--blue-200)}
.danger-button{border:2px solid #c97873}

/* Tables, repeated lists, permissions and inspection rows */
.data-table th{
  color:var(--blue-900);
  background:linear-gradient(180deg,var(--blue-100),#e8f3fc);
  border-bottom:2px solid var(--surface-border-strong);
}
.data-table td{border-bottom:1.5px solid var(--surface-border-soft)}
.data-table tr:hover td{background:var(--blue-50)}
.permission-row,.list-item,.check-row{border-bottom:1.5px solid var(--surface-border-soft)}
.file-item{background:var(--blue-50);border:1.5px solid var(--surface-border-soft)}

/* Notices keep semantic meaning but share the same visual frame */
.notice.info{background:var(--blue-50);border-color:var(--surface-border)}
.notice.warning{border-color:#b69b58}
.notice.danger{border-color:#c97873}

/* Global headers and navigation hierarchy */
.topbar{border-bottom:2px solid var(--surface-border);background:linear-gradient(180deg,#fff 0%,var(--blue-25) 100%)}
.nav-item.active,.nav-group-toggle.active{background:linear-gradient(90deg,rgba(77,163,230,.34),rgba(15,143,207,.16));box-shadow:inset 3px 0 0 var(--blue-300)}
.page-heading{padding-bottom:12px;border-bottom:2px solid var(--blue-200)}
.page-heading h2{color:var(--blue-900)}
.section-title{color:var(--blue-800)}

/* Calendar follows the same global border, while retaining weekend emphasis */
.calendar-shell,.selected-date-panel,.calendar-status-panel{border-color:var(--surface-border)}
.calendar-toolbar{background:linear-gradient(180deg,var(--blue-50),var(--blue-100));border-bottom:2px solid var(--surface-border-strong)}
.calendar-weekdays{background:var(--blue-100);border-bottom:2px solid var(--surface-border-strong)}
.calendar-day{border-right:1.5px solid var(--surface-border-soft);border-bottom:1.5px solid var(--surface-border-soft)}
.calendar-day:hover{background:var(--blue-50)}
.calendar-day.selected{background:var(--blue-100);box-shadow:inset 0 0 0 3px var(--azure)}
.calendar-day.today{box-shadow:inset 0 0 0 2px var(--blue-700)}
.calendar-day.today.selected{box-shadow:inset 0 0 0 3px var(--blue-800)}
.calendar-event.personal{background:var(--blue-100);color:var(--blue-800);border:1.5px solid var(--blue-400)}
.calendar-multi-status{background:var(--blue-50);border:2px solid var(--surface-border)}

/* Modals */
.modal-header{background:linear-gradient(180deg,var(--blue-50),#fff);border-bottom:2px solid var(--surface-border)}
.modal-footer{background:var(--blue-25);border-top:2px solid var(--surface-border)}

@media(max-width:820px){
  .card,.calendar-shell,.selected-date-panel,.calendar-status-panel,.table-wrap,.modal-card,.notice{border-width:1.5px}
}