:root {
    --bg: #f5f5f5;
    --panel: #ffffff;
    --panel-border: rgba(0, 0, 0, 0.12);
    --text: #212121;
    --muted: #757575;
    --accent: #1976d2;
    --accent-strong: #1565c0;
    --accent-soft: #e3f2fd;
    --danger: #c62828;
    --danger-soft: rgba(198, 40, 40, 0.08);
    --shadow: 0 2px 1px -1px rgba(0,0,0,.2), 0 1px 1px 0 rgba(0,0,0,.14), 0 1px 3px 0 rgba(0,0,0,.12);
    --shadow-raised: 0 2px 4px -1px rgba(0,0,0,.2), 0 4px 5px 0 rgba(0,0,0,.14), 0 1px 10px 0 rgba(0,0,0,.12);
    --input-border: rgba(0, 0, 0, 0.38);
    --input-bg: #ffffff;
    --input-focus-border: #1976d2;
    --button-primary-text: #ffffff;
    --button-primary-shadow: 0 3px 1px -2px rgba(0,0,0,.2), 0 2px 2px 0 rgba(0,0,0,.14), 0 1px 5px 0 rgba(0,0,0,.12);
    --status-bg: #f5f5f5;
    --user-item-border: rgba(0, 0, 0, 0.12);
    --user-item-bg: #ffffff;
    --menu-bg: #ffffff;
    --menu-shadow: 0 5px 5px -3px rgba(0,0,0,.2), 0 8px 10px 1px rgba(0,0,0,.14), 0 3px 14px 2px rgba(0,0,0,.12);
    --menu-item-hover: rgba(0, 0, 0, 0.04);
    --family-budget-link-bg: #ffffff;
    --family-budget-link-border: rgba(0, 0, 0, 0.12);
    --family-budget-link-shadow: 0 2px 1px -1px rgba(0,0,0,.2), 0 1px 1px 0 rgba(0,0,0,.14), 0 1px 3px 0 rgba(0,0,0,.12);
    --family-budget-link-text: #1976d2;
    --family-budget-link-chevron: #757575;
    --radius: 4px;
    --income: #2e7d32;
    --income-soft: rgba(46, 125, 50, 0.1);
    --danger-strong: #b71c1c;
    --modal-backdrop: rgba(0, 0, 0, 0.5);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    min-height: 100vh;
    padding: 24px 16px;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: "Roboto", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
}

button,
input,
select {
    font: inherit;
}

.page-shell {
    position: relative;
    z-index: 1;
    width: min(100%, 720px);
    margin: 0 auto;
    display: grid;
    gap: 16px;
}

.panel {
    background: var(--panel);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
}

.hero {
    padding: 20px 24px;
    z-index: 1;
}

.hero-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 16px;
    align-items: center;
}

.hero-copy {
    min-width: 0;
}

.hero-actions {
    display: flex;
    justify-content: flex-end;
}

.hero-actions .menu-trigger {
    min-width: 0;
    padding: 8px 10px;
    line-height: 0;
}

.menu {
    position: relative;
}

.menu-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 160px;
    padding: 8px 0;
    border-radius: var(--radius);
    background: var(--menu-bg);
    box-shadow: var(--menu-shadow);
    z-index: 10;
}

.menu-item {
    width: 100%;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--text);
    text-align: left;
    font-weight: 400;
    font-size: 1rem;
    padding: 12px 16px;
    cursor: pointer;
    letter-spacing: 0.01em;
}

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

.menu-item:focus-visible {
    outline: 2px solid var(--input-focus-border);
    outline-offset: -2px;
}

.eyebrow {
    margin: 0 0 4px;
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

h1,
h2,
p {
    margin: 0;
}

h1 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 400;
    letter-spacing: 0;
    line-height: 1.2;
}

h2 {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.3;
}

.subtitle {
    margin-top: 4px;
    color: var(--muted);
    font-size: 0.875rem;
    line-height: 1.5;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.form-grid {
    display: grid;
    gap: 16px;
}

.field {
    display: grid;
    gap: 6px;
}

.field span {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.04em;
}

.field select {
    cursor: pointer;
}

.button:disabled {
    cursor: not-allowed;
    opacity: 0.38;
    box-shadow: none;
}

input,
select {
    width: 100%;
    border: 1px solid var(--input-border);
    border-radius: var(--radius);
    background: var(--input-bg);
    padding: 12px 14px;
    outline: none;
    transition: border-color 100ms ease, border-width 100ms ease;
    color: var(--text);
}

input:hover,
select:hover {
    border-color: var(--text);
}

input:focus,
select:focus {
    border-color: var(--input-focus-border);
    border-width: 2px;
    padding: 11px 13px;
}

.button {
    border: 0;
    border-radius: var(--radius);
    cursor: pointer;
    padding: 8px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.08929em;
    text-transform: uppercase;
    transition: background-color 150ms ease, box-shadow 150ms ease;
}

.actions {
    margin-top: 20px;
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.button.primary {
    background: var(--accent);
    color: var(--button-primary-text);
    box-shadow: var(--button-primary-shadow);
}

.button.primary:hover:not(:disabled) {
    background: var(--accent-strong);
    box-shadow: var(--shadow-raised);
}

.button.secondary {
    background: transparent;
    color: var(--accent);
    border: 1px solid rgba(25, 118, 210, 0.5);
}

.button.secondary:hover:not(:disabled) {
    background: rgba(25, 118, 210, 0.04);
    border-color: var(--accent);
}

.button.danger {
    background: var(--danger);
    color: #ffffff;
    box-shadow: var(--button-primary-shadow);
}

.button.danger:hover:not(:disabled) {
    background: var(--danger-strong);
    box-shadow: var(--shadow-raised);
}

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

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
}

.modal {
    background: var(--panel);
    border-radius: var(--radius);
    box-shadow: var(--shadow-raised);
    padding: 24px;
    width: 100%;
    max-width: 400px;
}

.modal-title {
    margin: 0 0 8px;
    font-size: 1.1rem;
    font-weight: 500;
}

.modal-body {
    margin: 0;
    color: var(--muted);
    font-size: 0.875rem;
    line-height: 1.5;
}

.modal-form {
    max-width: 480px;
}

.status,
.error {
    margin-top: 8px;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 0.875rem;
    line-height: 1.5;
}

.status {
    background: var(--status-bg);
    color: var(--muted);
}

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

.error {
    margin-top: 16px;
    background: var(--danger-soft);
    color: var(--danger);
}

.user-list {
    list-style: none;
    padding: 0;
    margin: 16px 0 0;
    display: grid;
    gap: 8px;
}

.user-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid var(--user-item-border);
    border-radius: var(--radius);
    background: var(--user-item-bg);
}

.user-item strong {
    display: block;
    margin-bottom: 4px;
}

.user-meta {
    color: var(--muted);
    font-size: 0.875rem;
}

.family-budget-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 8px;
}

.family-budget-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    text-align: left;
    text-decoration: none;
    color: var(--family-budget-link-text);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 14px 16px;
    border: 1px solid var(--family-budget-link-border);
    border-radius: var(--radius);
    background: var(--family-budget-link-bg);
    box-shadow: var(--family-budget-link-shadow);
    transition: background-color 150ms ease, box-shadow 150ms ease;
    cursor: pointer;
}

.family-budget-link-active {
    background: var(--accent-soft);
    border-color: var(--accent);
    box-shadow: none;
}

.family-budget-link:hover:not(.family-budget-link-active) {
    background: rgba(25, 118, 210, 0.04);
    box-shadow: var(--shadow-raised);
}

.family-budget-link:focus-visible {
    outline: 2px solid var(--input-focus-border);
    outline-offset: 2px;
}

.family-budget-month-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    margin-bottom: 16px;
}

.family-budget-month-nav-label {
    flex: 1;
    text-align: center;
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text);
    letter-spacing: 0.02em;
    text-transform: capitalize;
}

.family-budget-month-nav-button {
    padding: 6px 12px;
    font-size: 1rem;
    line-height: 1;
    min-width: 36px;
}

.family-budget-transaction-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 1px;
    background: var(--user-item-border);
    border: 1px solid var(--user-item-border);
    border-radius: var(--radius);
}

.family-budget-transaction-item:first-child {
    border-radius: var(--radius) var(--radius) 0 0;
}

.family-budget-transaction-item:last-child {
    border-radius: 0 0 var(--radius) var(--radius);
}

.family-budget-transaction-item {
    position: relative;
    display: grid;
    grid-template-columns: 100px minmax(0, 1fr) minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--user-item-bg);
    cursor: pointer;
    user-select: none;
}

.family-budget-transaction-item:hover {
    background: var(--menu-item-hover);
}

.family-budget-transaction-menu {
    position: absolute;
    top: calc(100% - 4px);
    right: 8px;
    min-width: 140px;
    padding: 8px 0;
    border-radius: var(--radius);
    background: var(--menu-bg);
    box-shadow: var(--menu-shadow);
    z-index: 10;
}

.family-budget-transaction-date {
    font-size: 0.8125rem;
    color: var(--muted);
    white-space: nowrap;
}

.family-budget-transaction-description {
    font-size: 0.875rem;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.family-budget-transaction-category {
    font-size: 0.8125rem;
    color: var(--muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.family-budget-transaction-amount {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 2px 8px;
    border-radius: 12px;
    white-space: nowrap;
}

.family-budget-transaction-amount-expense {
    background: var(--danger-soft);
    color: var(--danger);
}

.family-budget-transaction-amount-income {
    background: var(--income-soft);
    color: var(--income);
}

@media (max-width: 640px) {
    body {
        padding: 0;
    }

    .page-shell {
        gap: 8px;
    }

    .panel {
        border-radius: 0;
        box-shadow: none;
        border-bottom: 1px solid var(--panel-border);
        padding: 16px;
    }


    .hero-actions {
        justify-content: flex-end;
    }

    .panel-header {
        flex-direction: column;
        align-items: stretch;
    }

    .family-budget-transaction-item {
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
    }

    .family-budget-transaction-date {
        grid-column: 1;
        grid-row: 1;
    }

    .family-budget-transaction-amount {
        grid-column: 2;
        grid-row: 1;
        justify-self: end;
    }

    .family-budget-transaction-description {
        grid-column: 1;
        grid-row: 2;
    }

    .family-budget-transaction-category {
        grid-column: 2;
        grid-row: 2;
        text-align: right;
    }
}