@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700&display=swap');

html {
    --app-primary: #3f51b5;
    --app-primary-dark: #2c3a91;
    --app-accent: #00bcd4;
    --app-success: #34a853;
    --app-danger: #ea4335;
    --app-muted: #6c757d;
    --app-bg: #f4f6fc;
    --app-card-bg: #ffffff;
    --app-shadow: 0 16px 30px rgba(63, 81, 181, 0.12);
    --app-border-radius: 18px;
}

::root {
    --app-primary: #3f51b5;
    --app-primary-dark: #2c3a91;
    --app-accent: #00bcd4;
    --app-success: #34a853;
    --app-danger: #ea4335;
    --app-muted: #6c757d;
    --app-bg: #f4f6fc;
    --app-card-bg: #ffffff;
    --app-shadow: 0 16px 30px rgba(63, 81, 181, 0.12);
    --app-border-radius: 18px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: 'Nunito', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    margin: 0;
    background: linear-gradient(135deg, #eef1ff 0%, #f9fbff 100%);
    color: #2b2d42;
}

a {
    text-decoration: none;
}

.app-navbar {
    background: linear-gradient(135deg, var(--app-primary) 0%, var(--app-primary-dark) 100%) !important;
    box-shadow: var(--app-shadow);
}

.app-navbar .navbar-brand,
.app-navbar .nav-link,
.app-navbar .navbar-text {
    color: #fff !important;
    font-weight: 600;
}

.app-navbar .btn {
    border-radius: 999px;
    font-weight: 600;
}

.app-section-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--app-primary-dark);
    margin-bottom: 1rem;
}

.app-card {
    border: none;
    border-radius: var(--app-border-radius);
    box-shadow: var(--app-shadow);
    background-color: var(--app-card-bg);
}

.app-card .card-header {
    background: transparent;
    border-bottom: none;
    padding-bottom: 0;
}

.app-card .card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--app-primary-dark);
}

.app-table thead {
    background: rgba(63, 81, 181, 0.08);
}

.app-table th {
    color: var(--app-primary-dark);
    font-weight: 700;
    border-bottom: none;
    padding: 0.75rem 1rem;
}

.app-table td {
    vertical-align: middle;
    padding: 0.75rem 1rem;
}

.btn-app-primary {
    background: linear-gradient(135deg, var(--app-primary) 0%, var(--app-primary-dark) 100%);
    color: #fff;
    border: none;
    box-shadow: 0 12px 20px rgba(63, 81, 181, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-app-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 24px rgba(63, 81, 181, 0.24);
    color: #fff;
}

.btn-app-outline {
    border: 1px solid rgba(63, 81, 181, 0.35);
    color: var(--app-primary-dark);
    background-color: #fff;
    transition: all 0.2s ease;
}

.btn-app-outline:hover {
    background-color: rgba(63, 81, 181, 0.08);
    color: var(--app-primary-dark);
}

.badge-app {
    padding: 0.5rem 0.75rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.85rem;
    display: inline-flex;
    align-items: center;
    line-height: 1;
    white-space: nowrap;
}

.badge-nav {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    background-color: rgba(255, 255, 255, 0.18);
    color: #ffffff;
}

.badge-nav i {
    font-size: 0.9rem;
}

.badge-nav.badge-nav-alert {
    background-color: rgba(234, 67, 53, 0.28);
}

.badge-nav.badge-nav-ok {
    background-color: rgba(52, 168, 83, 0.28);
}

.badge-app.pending {
    background-color: rgba(255, 193, 7, 0.15);
    color: #b28704;
}

.badge-app.approved {
    background-color: rgba(52, 168, 83, 0.15);
    color: var(--app-success);
}

.badge-app.rejected {
    background-color: rgba(234, 67, 53, 0.15);
    color: var(--app-danger);
}

.form-control,
.form-select {
    border-radius: 12px;
    border: 1px solid rgba(63, 81, 181, 0.15);
    padding: 0.65rem 0.9rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--app-primary);
    box-shadow: 0 0 0 0.15rem rgba(63, 81, 181, 0.15);
}

.teammate-card,
.teammate-edit-item,
.teammate-reapply-item {
    border-radius: var(--app-border-radius);
    border: 1px dashed rgba(63, 81, 181, 0.35);
    background-color: rgba(63, 81, 181, 0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.teammate-card:hover,
.teammate-edit-item:hover,
.teammate-reapply-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--app-shadow);
}

.table-hover tbody tr:hover {
    background-color: rgba(63, 81, 181, 0.04);
}

.page-wrapper {
    min-height: 100vh;
    padding: 2rem 0;
}

.app-hero {
    background: linear-gradient(135deg, rgba(63,81,181,0.9) 0%, rgba(32,64,153,0.9) 100%);
    color: #fff;
    border-radius: var(--app-border-radius);
    box-shadow: var(--app-shadow);
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.app-hero h1 {
    font-size: 2rem;
    font-weight: 700;
}

.app-hero p {
    margin-bottom: 0;
    font-size: 1.05rem;
    opacity: 0.9;
}

.app-hero-compact {
    padding: 1.6rem 2rem;
    margin-bottom: 1.5rem;
}

.empty-placeholder {
    padding: 3rem 1rem;
    text-align: center;
    color: var(--app-muted);
}

.empty-placeholder i {
    font-size: 2rem;
    display: block;
    margin-bottom: 1rem;
}

.report-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 1.75rem;
}

.report-layout-main,
.report-layout-side {
    min-width: 0;
}

.report-layout-side {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

@media (min-width: 992px) {
    .report-layout {
        grid-template-columns: minmax(0, 1fr) 340px;
        align-items: start;
    }
    .report-layout-side {
        position: relative;
    }
}

.receipt-upload-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.75rem;
}

@media (max-width: 768px) {
    .receipt-upload-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 576px) {
    .receipt-upload-grid {
        grid-template-columns: 1fr;
    }
}

.receipt-upload-item {
    position: relative;
    border-radius: 16px;
    border: 1.5px dashed rgba(63, 81, 181, 0.35);
    background: rgba(63, 81, 181, 0.045);
    cursor: pointer;
    transition: all .2s ease;
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.receipt-upload-item:hover {
    box-shadow: var(--app-shadow);
    border-color: rgba(63, 81, 181, 0.65);
    background-color: #ffffff;
    transform: translateY(-1px);
}

.receipt-upload-item.has-file {
    background-color: #ffffff;
    border-style: solid;
    border-color: rgba(63, 81, 181, 0.55);
}

.receipt-upload-item input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.receipt-upload-plus {
    font-size: 2.8rem;
    color: rgba(63, 81, 181, 0.55);
    font-weight: 300;
    line-height: 1;
}

.receipt-upload-text {
    margin-top: 0.6rem;
    font-weight: 600;
    color: var(--app-primary-dark);
}

.receipt-upload-hint {
    font-size: 0.75rem;
    color: var(--app-muted);
    margin-top: 0.25rem;
}

.receipt-upload-filename {
    display: block;
    margin-top: 0.4rem;
    font-size: 0.78rem;
    word-break: break-all;
    color: var(--app-primary);
}

.receipt-upload-preview {
    position: absolute;
    inset: 12px;
    width: calc(100% - 24px);
    height: calc(100% - 24px);
    border-radius: 12px;
    object-fit: cover;
    box-shadow: inset 0 0 0 1px rgba(63, 81, 181, 0.18);
    opacity: 0;
    transition: opacity .2s ease;
    pointer-events: none;
}

.receipt-upload-item.has-preview .receipt-upload-preview {
    opacity: 1;
}

.receipt-upload-item.has-preview .receipt-upload-plus,
.receipt-upload-item.has-preview .receipt-upload-text,
.receipt-upload-item.has-preview .receipt-upload-hint,
.receipt-upload-item.has-preview .receipt-upload-filename {
    opacity: 0;
}

.receipt-upload-item.has-file .receipt-upload-plus {
    color: var(--app-primary);
}

.receipt-upload-item.has-file .receipt-upload-text {
    color: var(--app-primary);
}

.receipt-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.75rem;
}

.receipt-gallery-item {
    border-radius: var(--app-border-radius);
    border: 1px solid rgba(63, 81, 181, 0.25);
    background: #ffffff;
    box-shadow: 0 6px 18px rgba(63, 81, 181, 0.08);
    padding: 0.5rem;
    text-align: center;
}

.receipt-gallery-item img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: 12px;
    cursor: zoom-in;
    transition: transform .2s ease;
}

.receipt-gallery-item img:hover {
    transform: scale(1.02);
}

.receipt-gallery-item .form-check {
    margin-top: 0.5rem;
}

.receipt-thumb,
.preview-thumb {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid rgba(63, 81, 181, 0.2);
    cursor: zoom-in;
    transition: transform .2s ease;
}

.receipt-thumb:hover,
.preview-thumb:hover {
    transform: scale(1.02);
    box-shadow: var(--app-shadow);
}

.editable-cell {
    display: inline-block;
    padding: 0.2rem 0.4rem;
    border-radius: 12px;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.editable-cell:hover {
    background-color: rgba(63, 81, 181, 0.08);
}

.editable-cell.editing {
    background-color: rgba(63, 81, 181, 0.12);
    cursor: text;
}

.inline-edit-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.inline-edit-group .form-control-sm {
    min-width: 110px;
    max-width: 150px;
}

.inline-edit-unit {
    font-size: 0.85rem;
    color: #64748b;
}

.inline-edit-actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.inline-edit-actions .btn {
    padding: 0.25rem 0.65rem;
    font-size: 0.78rem;
    line-height: 1.2;
}