:root {
    --app-bg: #f4f1ea;
    --app-surface: #fffdf8;
    --app-border: #c9b89c;
    --app-text: #2a241c;
    --app-muted: #74685b;
    --app-accent: #8f3d22;
    --app-accent-dark: #6d2f1a;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(circle at top right, rgba(143, 61, 34, 0.12), transparent 28%),
        linear-gradient(180deg, #fbf8f2 0%, var(--app-bg) 100%);
    color: var(--app-text);
}

.app-frame {
    display: flex;
    min-height: 100vh;
}

.app-sidebar {
    width: 280px;
    flex: 0 0 280px;
    background: linear-gradient(180deg, #2f3a44 0%, #24303a 100%);
    color: #f5f1e8;
    padding: 1.5rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.06);
}

.app-sidebar-brand {
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.app-sidebar-title {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.app-sidebar-subtitle {
    font-size: 0.9rem;
    color: rgba(245, 241, 232, 0.72);
}

.app-sidebar-nav {
    display: grid;
    gap: 0.5rem;
}

.app-nav-link {
    display: flex;
    align-items: center;
    min-height: 46px;
    padding: 0.8rem 0.95rem;
    border-radius: 0.8rem;
    color: #f7f3ea;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.04);
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.app-nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.11);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateX(2px);
}

.app-sidebar-footer {
    margin-top: auto;
    display: grid;
    gap: 0.9rem;
}

.app-user-badge {
    padding: 0.9rem 1rem;
    border-radius: 0.9rem;
    background: rgba(255, 255, 255, 0.07);
}

.app-user-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(245, 241, 232, 0.6);
    margin-bottom: 0.25rem;
}

.app-user-name {
    font-weight: 600;
}

.app-main {
    flex: 1 1 auto;
    min-width: 0;
}

.app-shell {
    padding-top: 2rem;
    padding-bottom: 3rem;
}

.app-card {
    background: var(--app-surface);
    border: 1px solid rgba(201, 184, 156, 0.9);
    border-radius: 1rem;
    box-shadow: 0 18px 40px rgba(70, 54, 35, 0.08);
}

.app-title {
    font-weight: 700;
    letter-spacing: 0.02em;
}

.app-subtitle {
    color: var(--app-muted);
}

.app-toolbar {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.app-toolbar-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.btn-primary {
    --bs-btn-bg: var(--app-accent);
    --bs-btn-border-color: var(--app-accent);
    --bs-btn-hover-bg: var(--app-accent-dark);
    --bs-btn-hover-border-color: var(--app-accent-dark);
    --bs-btn-active-bg: var(--app-accent-dark);
    --bs-btn-active-border-color: var(--app-accent-dark);
}

.btn-outline-secondary {
    --bs-btn-color: var(--app-text);
    --bs-btn-border-color: var(--app-border);
    --bs-btn-hover-bg: #efe6d8;
    --bs-btn-hover-border-color: var(--app-border);
    --bs-btn-hover-color: var(--app-text);
}

.btn-outline-danger {
    --bs-btn-color: #8e2f2f;
    --bs-btn-border-color: #b98686;
    --bs-btn-hover-bg: #8e2f2f;
    --bs-btn-hover-border-color: #8e2f2f;
}

.form-label {
    font-weight: 600;
    color: var(--app-muted);
}

.form-control,
.form-select {
    border-color: var(--app-border);
    background-color: #fffefb;
}

.form-control:focus,
.form-select:focus {
    border-color: rgba(143, 61, 34, 0.55);
    box-shadow: 0 0 0 0.25rem rgba(143, 61, 34, 0.14);
}

.report-table {
    margin-bottom: 0;
    table-layout: fixed;
}

.report-table td {
    padding: 0.75rem 0.875rem;
    vertical-align: middle;
    border-color: rgba(201, 184, 156, 0.9);
    background: #fffefb;
}

.report-table td:first-child {
    width: 48%;
    font-weight: 600;
    color: var(--app-muted);
    background: #f8f3ea;
}

.report-table .form-control {
    border: none;
    background: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
}

.report-table .form-control[readonly] {
    color: var(--app-text);
}

.expense-row {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(140px, 1fr) minmax(0, 2fr);
    gap: 0.75rem;
}

.report-meta {
    color: var(--app-muted);
    font-size: 0.95rem;
}

.report-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    align-items: end;
}

.empty-state {
    border: 1px dashed var(--app-border);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    color: var(--app-muted);
    background: rgba(255, 253, 248, 0.75);
}

.section-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.text-danger.small {
    display: block;
    margin-top: 0.35rem;
}

@media (max-width: 767.98px) {
    .app-frame {
        display: block;
    }

    .app-sidebar {
        width: 100%;
        flex-basis: auto;
        border-bottom-left-radius: 1rem;
        border-bottom-right-radius: 1rem;
    }

    .expense-row {
        grid-template-columns: 1fr;
    }

    .report-table td,
    .report-table tr {
        display: block;
        width: 100%;
    }

    .report-table td:first-child {
        width: 100%;
        border-bottom: none;
    }
}