[data-app-shell] {
    --sidebar-bg: #1e3a8a;
    --sidebar-text: #dbeafe;
    --sidebar-hover-bg: #1d4ed8;
    --sidebar-active-bg: #1e40af;
    --sidebar-border: #3b82f6;
    --sidebar-accent: #bfdbfe;
    --topbar-bg: #ffffff;
    --topbar-text: #0f172a;
    --topbar-muted: #64748b;
    --topbar-border: #e2e8f0;
    --topbar-surface: #ffffff;
    --topbar-button-bg: #f8fafc;
    --topbar-avatar-bg: #1e3a8a;
    --topbar-avatar-text: #f8fafc;
}

[data-mobile-sidebar] {
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
}

.sidebar-divider {
    border-color: var(--sidebar-border);
}

.sidebar-muted {
    color: var(--sidebar-text);
    opacity: 0.82;
}

.sidebar-icon-btn {
    border-color: var(--sidebar-border);
    color: var(--sidebar-text);
    background: transparent;
}

.sidebar-icon-btn:hover {
    background: var(--sidebar-hover-bg);
}

.sidebar-logo-border {
    border-color: var(--sidebar-border);
    background: rgba(255, 255, 255, 0.12);
}

.nav-link {
    display: block;
    border-radius: 0.5rem;
    padding: 0.6rem 0.75rem;
    color: var(--sidebar-text);
    border: 1px solid transparent;
}

.nav-link:hover {
    background: var(--sidebar-hover-bg);
    color: var(--sidebar-text);
    border-color: var(--sidebar-border);
}

.nav-link-active {
    position: relative;
    background: var(--sidebar-active-bg);
    color: var(--sidebar-text);
    border-color: var(--sidebar-border);
    box-shadow: inset 0 0 0 1px var(--sidebar-border);
}

.nav-link-active::before {
    content: '';
    position: absolute;
    left: 0.35rem;
    top: 0.35rem;
    bottom: 0.35rem;
    width: 0.2rem;
    border-radius: 9999px;
    background: var(--sidebar-accent);
}

.app-topbar {
    background: var(--topbar-bg);
    color: var(--topbar-text);
    border-color: var(--topbar-border);
}

.topbar-muted {
    color: var(--topbar-muted);
}

.topbar-icon-btn,
.topbar-btn {
    background: var(--topbar-button-bg);
    color: var(--topbar-text);
    border-color: var(--topbar-border);
}

.topbar-icon-btn:hover,
.topbar-btn:hover {
    filter: brightness(0.96);
}

.topbar-avatar {
    background: var(--topbar-avatar-bg);
    color: var(--topbar-avatar-text);
}

.topbar-menu {
    background: var(--topbar-surface);
    border-color: var(--topbar-border);
}

.topbar-menu-item {
    color: var(--topbar-text);
}

.topbar-menu-item:hover {
    background: var(--topbar-button-bg);
}

.topbar-divider {
    background: var(--topbar-border);
}

.topbar-menu-danger {
    color: #dc2626;
}

.topbar-menu-danger:hover {
    background: rgba(220, 38, 38, 0.12);
}

.card {
    border-radius: 0.75rem;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    padding: 1rem;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    border-radius: 0.5rem;
    border: 1px solid #cbd5e1;
    padding: 0.55rem 0.7rem;
    background: white;
}

.btn-primary {
    border-radius: 0.5rem;
    background: #2563eb;
    color: white;
    padding: 0.6rem 1rem;
}

.btn-primary:hover {
    background: #1d4ed8;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 9999px;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-paid {
    background: #dcfce7;
    color: #166534;
}

.status-partial {
    background: #fef3c7;
    color: #92400e;
}

.status-unpaid {
    background: #fee2e2;
    color: #991b1b;
}

.dropzone {
    border: 2px dashed #cbd5e1;
    border-radius: 0.75rem;
    padding: 0.9rem;
    background: #f8fafc;
    transition: all .15s ease;
    cursor: pointer;
}

.dropzone:hover,
.dropzone.is-dragover {
    border-color: #334155;
    background: #eef2ff;
}

.dropzone-title {
    font-size: 0.75rem;
    color: #334155;
}

.attachment-preview {
    margin-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.attachment-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border: 1px solid #cbd5e1;
    border-radius: 9999px;
    background: #fff;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    color: #334155;
}

.attachment-icon {
    font-size: 0.8rem;
    line-height: 1;
}

@media (max-width: 1023px) {
    [data-mobile-sidebar] {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
    }

    [data-mobile-sidebar].is-open {
        transform: translateX(0);
    }

    [data-main-content] {
        transition: transform 0.25s ease;
    }

    [data-main-content].is-pushed {
        transform: translateX(16rem);
    }

    body.sidebar-open {
        overflow: hidden;
    }
}

@media (max-width: 640px) {
    .card {
        padding: 0.75rem;
    }

    .form-input,
    .form-select,
    .form-textarea,
    .btn-primary {
        font-size: 0.95rem;
    }

    .mobile-stack thead {
        display: none;
    }

    .mobile-stack,
    .mobile-stack tbody,
    .mobile-stack tr,
    .mobile-stack td {
        display: block;
        width: 100%;
    }

    .mobile-stack tr {
        border: 1px solid #e2e8f0;
        border-radius: 0.75rem;
        background: #fff;
        padding: 0.45rem 0.55rem;
        margin-bottom: 0.6rem;
    }

    .mobile-stack td {
        border: 0 !important;
        padding: 0.28rem 0;
        white-space: normal !important;
    }

    .mobile-stack td::before {
        content: attr(data-label);
        display: block;
        font-size: 0.68rem;
        font-weight: 600;
        color: #64748b;
        text-transform: uppercase;
        letter-spacing: 0.03em;
        margin-bottom: 0.1rem;
    }

    .mobile-stack td.priority-low {
        display: none;
    }
}