:root {
    --primary-color: #0d6efd;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --secondary-color: #6c757d;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #000;
    color: #fff;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 9999;
    border-radius: 0 0 4px 0;
}
.skip-link:focus { top: 0; }

.pc-card:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(13, 110, 253, 0.25);
}

.pc-grid-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.pc-grid-scroll::-webkit-scrollbar { height: 6px; }
.pc-grid-scroll::-webkit-scrollbar-thumb { background: #ccc; border-radius: 3px; }

.card:hover { transform: translateY(-2px); }
.card-no-hover:hover { transform: none; }

.form-label.required::after {
    content: " *";
    color: var(--danger-color);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.5s ease-in; }

.login-page-body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.landing-container {
    background-color: #fff;
    border-radius: 24px;
    padding: 2.5rem;
    margin: 2rem auto;
    max-width: 960px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}
.landing-container .bi-pc-display-horizontal {
    color: var(--bs-primary, #0d6efd);
}
.landing-card.card {
    border: 2px solid #000 !important;
    border-radius: 12px;
    transition: all 0.15s ease;
    box-shadow: 5px 5px 0 rgba(0,0,0,0.18);
}
.landing-card.card:hover {
    transform: translate(-2px, -2px);
    box-shadow: 7px 7px 0 rgba(0,0,0,0.22);
}
.landing-card .card-title {
    font-size: 1.3rem;
}
.landing-card .bi-pc-display-horizontal {
    color: #000;
}

.login-card { max-width: 400px; width: 100%; }

.software-page-container { max-width: 900px; }

.pc-grid { display: flex; flex-direction: column; gap: clamp(10px, 2.5vw, 20px); }
.pc-row { display: flex; gap: clamp(8px, 2vw, 20px); flex-wrap: wrap; justify-content: center; }
.pc-card-wrapper { container-type: inline-size; display: flex; flex-direction: column; align-items: center; gap: 6px; width: clamp(84px, 8vw, 120px); flex: 0 1 auto; }
.pc-card-wrapper-sm { width: clamp(65px, 7vw, 85px); flex: 0 1 auto; }
.pc-card-wrapper-special { width: clamp(116px, 8vw, 140px); flex: 0 1 auto; }
.pc-card.pc-card-special { background: linear-gradient(135deg, #f0e6ff, #f8f4ff); border-width: 3px; }
.pc-card {
    width: 100%; aspect-ratio: 1 / 1;
    min-height: 0; overflow: hidden;
    border: 2px solid #dee2e6; border-radius: 10px;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    position: relative; transition: all 0.3s ease; background: white;
}
.pc-card:hover { transform: translateY(-5px); box-shadow: 0 5px 15px rgba(0,0,0,0.2); }
.pc-card.status-normal { border-color: #28a745; background: #f8fff9; }
.pc-card.status-warning { border-color: #ffc107; background: #fffef8; }
.pc-card.status-broken { border-color: #dc3545; background: #fff8f8; }
.pc-card.placement-cadangan { border-color: #6c757d; background: #f8f9fa; opacity: 0.7; }
.pc-card.pc-empty { border-style: dashed; background: #f8f9fa; cursor: default; }
.pc-card.pc-empty:hover { transform: none; box-shadow: none; }
.pc-number { font-weight: bold; font-size: clamp(10px, 15cqw, 16px); margin-bottom: 5px; }
.pc-icon { font-size: clamp(1.4rem, 34cqw, 2rem); }
.pc-status-badge { position: absolute; top: clamp(2px, 0.5vw, 5px); right: clamp(2px, 0.5vw, 5px); font-size: clamp(0.7rem, 2vw, 1.2rem); }
.pc-windows-badge { position: absolute; top: clamp(2px, 0.5vw, 5px); left: clamp(2px, 0.5vw, 5px); font-size: clamp(0.45rem, 1.5vw, 0.65rem); font-weight: 600; padding: clamp(1px, 0.3vw, 3px) clamp(2px, 0.5vw, 6px); border-radius: 4px; color: white; text-shadow: 0 1px 2px rgba(0,0,0,0.2); line-height: 1; }
.pc-windows-text { font-size: clamp(0.5rem, 1.5vw, 0.7rem); font-weight: 500; color: #495057; text-align: center; line-height: 1.2; padding: 0 4px; }
.windows-11-25h2 { background-color: #0066CC; }
.windows-11-23h2 { background-color: #4DA6FF; }
.windows-10-22h2 { background-color: #FF9933; }
.windows-other { background-color: #FFD966; color: #333; text-shadow: none; }

@media (max-width: 768px) {
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.3rem; }
    .row.mb-4 > [class*="col-md-3"] { margin-bottom: 15px; }
    .row.mt-4.mb-4 > [class*="col-md-4"] { margin-bottom: 15px; }
    .table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .card-body { padding: 1rem; }
    .modal-dialog { margin: 0.5rem; }
}

@media (max-width: 576px) {
    h2 { font-size: 1.3rem; }
    h3 { font-size: 1.1rem; }
    .login-card { max-width: 100%; padding: 0 15px; }
    .navbar-brand { font-size: 1.1rem; }
    .card.bg-success h2, .card.bg-warning h2, .card.bg-danger h2, .card.bg-secondary h2 { font-size: 1.8rem; }
    .card.bg-success h5, .card.bg-warning h5, .card.bg-danger h5, .card.bg-secondary h5 { font-size: 1rem; }
    .table { font-size: 0.875rem; }
    .table th, .table td { padding: 0.5rem; }
    .form-control, .form-select { font-size: 16px; }
}

@media (max-width: 375px) {
    .container-fluid { padding-left: 10px; padding-right: 10px; }
    .card-body { padding: 0.75rem; }
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #888; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #555; }

.spinner-border-sm { width: 1rem; height: 1rem; border-width: 0.15em; }
.alert { border-radius: 8px; border: none; }
.modal-content { border-radius: 10px; border: none; }
.modal-header { border-bottom: 1px solid #dee2e6; background-color: #f8f9fa; border-radius: 10px 10px 0 0; }
body.modal-open { overflow: auto !important; padding-right: 0 !important; }
.modal-backdrop { position: fixed; }
.modal { overflow-y: auto; }

.table { margin-top: 1rem; margin-bottom: 1rem; }
.activity-log-table { font-size: 0.9rem; }
.activity-log-table td { vertical-align: middle; }
.description-cell { max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.json-viewer { background-color: #f8f9fa; border: 1px solid #dee2e6; border-radius: 4px; padding: 10px; font-family: 'Courier New', monospace; font-size: 0.85rem; max-height: 300px; overflow-y: auto; }
.diff-view { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.diff-old { background-color: #ffebee; padding: 10px; border-radius: 4px; }
.diff-new { background-color: #e8f5e9; padding: 10px; border-radius: 4px; }

.th-w-50 { width: 50px; }
.th-w-80 { width: 80px; }
.th-w-120 { width: 120px; }
.th-w-140 { width: 140px; }
.th-w-150 { width: 150px; }
.th-w-180 { width: 180px; }
.th-w-200 { width: 200px; }
.th-w-250 { width: 250px; }
.th-w-40 { width: 40px; }

.category-header { background-color: #e9ecef !important; }

.cursor-pointer { cursor: pointer; }
.cursor-pointer:hover { opacity: 0.85; }

table.table-hover tbody tr.group-header-day { background-color: #f0f4ff; }
table.table-hover tbody tr.group-header-day:hover { background-color: #e8eeff; }
table.table-hover tbody tr.group-header-course { background-color: #f8f9fa; }
table.table-hover tbody tr.group-header-course:hover { background-color: #f0f1f3; }

.nav-tabs { border-bottom: 1px solid #dee2e6; }
.nav-tabs ~ .card.shadow-sm { border-top-left-radius: 0; border-top-right-radius: 0; border-top: none; }

.layout-grid-scroll { overflow-x: auto; }

.layout-cell {
    flex: 0 1 auto;
    min-width: 48px;
    max-width: 80px;
    width: 80px;
    aspect-ratio: 1 / 1;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 991px) {
    #pcLayoutModal .modal-dialog {
        max-width: calc(100vw - 16px);
        margin: 0.5rem auto;
    }
}

body { padding-top: 56px; }

.dup-wrapper .badge { min-width: 110px; font-size: 0.82rem; }
.dup-wrapper .badge .bi { font-size: 0.95rem; }
.dup-close-btn {
    background: none; border: none; padding: 0; line-height: 1;
    opacity: 0.7; cursor: pointer; display: inline-flex; align-items: center;
}
.dup-close-btn:hover { opacity: 1; }
.dup-close-btn .bi-x-lg { font-size: 1.25em; }

.photo-container { overflow: auto; max-height: 70vh; background: #f8f9fa; border-radius: 4px; }
#previewPhoto { width: 100%; max-width: none; height: auto; transition: width 0.15s ease; display: block; }