body {
    font-family: 'Inter', sans-serif;
    background-color: #f8fafc;
}

.navbar-brand {
    letter-spacing: 0.5px;
}

.nav-link.active {
    font-weight: 600;
}

.firestore-read-counter {
    font-weight: 600;
    font-size: 0.85rem;
    padding-inline: 0.75rem;
}

.user-avatar,
.user-badge {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.25);
    color: #0d6efd;
}

.user-avatar-lg,
.user-badge-lg {
    width: 96px;
    height: 96px;
    font-size: 1.75rem;
}

.user-badge {
    text-transform: uppercase;
}

.splash-screen {
    position: fixed;
    inset: 0;
    background: rgba(248, 250, 252, 0.98);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1055;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.splash-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.card {
    border-radius: 1rem;
}

.btn-primary {
    box-shadow: 0 0.5rem 1rem rgba(13, 110, 253, 0.25);
}

footer {
    background-color: #f1f5f9;
}

.upload-dropzone {
    border: 2px dashed rgba(13, 110, 253, 0.35);
    border-radius: 1rem;
    background-color: rgba(13, 110, 253, 0.05);
    transition: all 0.2s ease-in-out;
    cursor: pointer;
}

.upload-dropzone.is-dragover {
    border-style: solid;
    background-color: rgba(13, 110, 253, 0.12);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.15);
}

.dropzone-icon {
    font-size: 2.75rem;
}

.receipt-upload .list-group-item {
    border-left: 0;
    border-right: 0;
}

.receipt-upload .list-group-item:first-child {
    border-top: 0;
}

.receipt-upload .list-group-item:last-child {
    border-bottom: 0;
}

.details-toggle {
    cursor: pointer;
}

.details-toggle-icon {
    width: 1.25rem;
    height: 1.25rem;
    transition: transform 0.2s ease-in-out;
    display: inline-block;
}

details.receipt-table[open] .details-toggle-icon {
    transform: rotate(180deg);
}

.chart-container {
    position: relative;
    min-height: 180px;
    height: clamp(180px, 28vh, 260px);
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

.table-group-summary {
    background-color: #f1f5f9;
}

.table-group-summary td {
    border-top: none;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.table-group-summary .btn {
    font-weight: 600;
}

.table-group-item td {
    border-top: none;
}

.table-group-item td:first-child {
    position: relative;
}

.table-group-item td:first-child::before {
    content: '';
    position: absolute;
    left: 0.75rem;
    top: 0.75rem;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 9999px;
    background-color: rgba(13, 110, 253, 0.4);
}

.overview-week-indicators {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.overview-week-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.75rem;
    color: #64748b;
}

.overview-week-indicator-label {
    font-weight: 600;
    letter-spacing: 0.02em;
}

.overview-week-indicator-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 9999px;
    margin-top: 0.25rem;
    background-color: rgba(100, 116, 139, 0.35);
    transition: background-color 0.2s ease-in-out, transform 0.2s ease-in-out;
}

.overview-week-indicator.has-receipt .overview-week-indicator-dot {
    background-color: var(--bs-primary);
    transform: scale(1.1);
}

.overview-month-indicators {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.overview-month-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.7rem;
    color: #64748b;
}

.overview-month-indicator.outside-range {
    visibility: hidden;
}

.overview-month-indicator-label {
    font-weight: 600;
}

.overview-month-indicator-dot {
    width: 0.45rem;
    height: 0.45rem;
    border-radius: 9999px;
    margin-top: 0.2rem;
    background-color: rgba(100, 116, 139, 0.25);
    transition: background-color 0.2s ease-in-out, transform 0.2s ease-in-out;
}

.overview-month-indicator.has-receipt .overview-month-indicator-dot {
    background-color: var(--bs-primary);
    transform: scale(1.05);
}

@media (max-width: 767.98px) {
    .user-avatar,
    .user-badge {
        width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }
}