:root {
    --bg: #f4f6fa;
    --surface: #ffffff;
    --line: #e6e9f0;
    --text: #1d2333;
    --text-sub: #6b7383;
    --text-mute: #98a0b0;

    --income: #0f9d58;
    --income-soft: #e8f6ee;
    --expense: #e5484d;
    --expense-soft: #fdecec;
    --balance: #2f6feb;
    --balance-soft: #eaf1fe;

    --radius: 14px;
    --shadow: 0 1px 2px rgba(20, 30, 60, .05), 0 4px 16px rgba(20, 30, 60, .05);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "Pretendard", -apple-system, BlinkMacSystemFont,
                 "Segoe UI", "Malgun Gothic", system-ui, sans-serif;
    -webkit-text-size-adjust: 100%;
}

.app-shell {
    width: 100%;
    max-width: 880px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ------------------------------------------------------------ 헤더 / 탭 */

.app-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    height: 58px;
}

.app-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
    white-space: nowrap;
}

.app-logo i {
    color: var(--balance);
    font-size: 1.15rem;
}

.month-nav {
    display: flex;
    align-items: center;
    gap: 2px;
}

.month-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    color: var(--text-sub);
    text-decoration: none;
    transition: background .15s;
}

.month-nav-btn:hover { background: var(--bg); color: var(--text); }

.month-nav-label {
    min-width: 108px;
    text-align: center;
    font-size: .98rem;
    font-weight: 700;
    letter-spacing: -.01em;
}

.app-tabs {
    display: flex;
    gap: 4px;
}

.app-tab {
    flex: 1;
    padding: 11px 6px 13px;
    text-align: center;
    font-size: .92rem;
    font-weight: 600;
    color: var(--text-mute);
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
}

.app-tab:hover { color: var(--text-sub); }

.app-tab.active {
    color: var(--balance);
    border-bottom-color: var(--balance);
}

.app-main { padding-top: 20px; padding-bottom: 56px; }

.flash-alert { border: 0; border-radius: var(--radius); }

/* ------------------------------------------------------------ 월 요약 */

.summary-list {
    display: grid;
    gap: 12px;
}

.summary-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-areas:
        "label value link"
        "note  note  note";
    align-items: center;
    gap: 4px 14px;

    padding: 20px;
    background: var(--surface);
    border-radius: var(--radius);
    border-left: 4px solid var(--line);
    box-shadow: var(--shadow);
    text-decoration: none;
    color: inherit;
    transition: transform .12s, box-shadow .12s;
}

a.summary-row:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(20, 30, 60, .06), 0 10px 24px rgba(20, 30, 60, .08);
}

.summary-row.income  { border-left-color: var(--income); }
.summary-row.expense { border-left-color: var(--expense); }
.summary-row.balance { border-left-color: var(--balance); }

.summary-label {
    grid-area: label;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .95rem;
    font-weight: 600;
    color: var(--text-sub);
}

.summary-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-mute);
}

.summary-row.income  .summary-dot { background: var(--income); }
.summary-row.expense .summary-dot { background: var(--expense); }
.summary-row.balance .summary-dot { background: var(--balance); }

.summary-value {
    grid-area: value;
    text-align: right;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -.02em;
    font-variant-numeric: tabular-nums;
}

.summary-row.income  .summary-value { color: var(--income); }
.summary-row.expense .summary-value { color: var(--expense); }
.summary-row.balance .summary-value { color: var(--balance); }
.summary-row.balance.minus .summary-value { color: var(--expense); }

.summary-link {
    grid-area: link;
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--bg);
    font-size: .84rem;
    font-weight: 600;
    color: var(--text-sub);
    white-space: nowrap;
}

.summary-link.muted { background: transparent; color: var(--text-mute); }

.summary-note {
    grid-area: note;
    margin-top: 6px;
    font-size: .82rem;
    color: var(--text-mute);
}

/* 수입 대비 지출 */

.ratio-panel { margin-top: 16px; }

.ratio-percent {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--expense);
    font-variant-numeric: tabular-nums;
}

.ratio-bar {
    height: 10px;
    border-radius: 999px;
    background: var(--bg);
    overflow: hidden;
}

.ratio-fill {
    height: 100%;
    border-radius: 999px;
    background: var(--expense);
    transition: width .3s;
}

.ratio-fill.over { background: #b42318; }

.ratio-legend {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: .84rem;
    color: var(--text-sub);
}

.quick-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 16px;
}

.quick-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 15px;
    border-radius: var(--radius);
    background: var(--surface);
    box-shadow: var(--shadow);
    font-weight: 700;
    font-size: .95rem;
    text-decoration: none;
    transition: background .15s;
}

.quick-action.income  { color: var(--income); }
.quick-action.expense { color: var(--expense); }
.quick-action.income:hover  { background: var(--income-soft); }
.quick-action.expense:hover { background: var(--expense-soft); }

/* ------------------------------------------------------------ 페이지 헤더 */

.page-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.page-head h1 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: -.02em;
}

.page-sub {
    margin: 4px 0 0;
    font-size: .86rem;
    color: var(--text-mute);
}

.btn-add { white-space: nowrap; border-radius: 10px; font-weight: 600; }

.total-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    margin-bottom: 14px;
    border-radius: var(--radius);
    font-size: .92rem;
    font-weight: 600;
}

.total-bar strong {
    font-size: 1.3rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.total-bar.income  { background: var(--income-soft);  color: var(--income); }
.total-bar.expense { background: var(--expense-soft); color: var(--expense); }

/* ------------------------------------------------------------ 전월 이월 */

.carry-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 16px 18px;
    margin-bottom: 16px;
    border-radius: var(--radius);
    background: var(--balance-soft);
    border: 1px solid #d3e2fd;
}

.carry-text {
    display: flex;
    gap: 10px;
    font-size: .9rem;
    color: #1b4fc0;
    line-height: 1.5;
}

.carry-text i { font-size: 1.15rem; flex-shrink: 0; }
.carry-text strong { font-weight: 700; }

.carry-hint { display: block; font-size: .82rem; color: #5b7bc4; }

.carry-box .btn { white-space: nowrap; border-radius: 10px; font-weight: 600; }

/* ------------------------------------------------------------ 패널 / 목록 */

.panel {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 18px;
    margin-bottom: 14px;
}

.panel-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.panel-head h2 {
    margin: 0;
    font-size: 1.02rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.group-count {
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--bg);
    font-size: .76rem;
    font-weight: 600;
    color: var(--text-sub);
}

.group-desc {
    margin: 4px 0 0;
    font-size: .82rem;
    color: var(--text-mute);
}

.group-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.group-subtotal {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--expense);
    font-variant-numeric: tabular-nums;
}

.group-right .btn { border-radius: 9px; font-weight: 600; white-space: nowrap; }

.entry-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--line);
}

.entry {
    display: grid;
    grid-template-columns: 46px 1fr auto auto;
    grid-template-areas: "date body amount actions";
    align-items: center;
    gap: 12px;
    padding: 13px 2px;
    border-bottom: 1px solid var(--line);
}

.entry:last-child { border-bottom: 0; }
.entry.need-amount { background: #fffaf0; }

.entry-date {
    grid-area: date;
    font-size: .82rem;
    font-weight: 600;
    color: var(--text-mute);
    font-variant-numeric: tabular-nums;
}

.entry-body { grid-area: body; min-width: 0; }

.entry-name {
    font-size: .96rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.entry-meta {
    display: flex;
    align-items: center;
    gap: 7px;
    margin-top: 4px;
    flex-wrap: wrap;
}

.chip {
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--bg);
    font-size: .75rem;
    font-weight: 600;
    color: var(--text-sub);
}

.chip.carried { background: var(--balance-soft); color: var(--balance); }

.entry-memo {
    font-size: .8rem;
    color: var(--text-mute);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.entry-amount {
    grid-area: amount;
    text-align: right;
    font-size: 1rem;
    font-weight: 700;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.entry-amount.income  { color: var(--income); }
.entry-amount.expense { color: var(--text); }

.need-amount-tag {
    padding: 3px 9px;
    border-radius: 999px;
    background: #fdf0d5;
    color: #a15c07;
    font-size: .78rem;
    font-weight: 700;
}

.entry-actions {
    grid-area: actions;
    display: flex;
    align-items: center;
    gap: 2px;
    justify-content: flex-end;
}

.entry-actions form { margin: 0; }

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--text-mute);
    cursor: pointer;
    transition: background .15s, color .15s;
}

.icon-btn:hover { background: var(--bg); color: var(--text); }
.icon-btn.danger:hover { background: var(--expense-soft); color: var(--expense); }

/* ------------------------------------------------------------ 빈 상태 */

.empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-mute);
}

.empty i { font-size: 2rem; opacity: .5; }
.empty p { margin: 12px 0 16px; font-size: .92rem; }
.empty.small { padding: 22px; }
.empty.small p { margin: 0; font-size: .87rem; }

/* ------------------------------------------------------------ 폼 / 모달 */

.modal-content { border: 0; border-radius: 16px; }
.modal-header, .modal-footer { border-color: var(--line); }
.modal-title { font-size: 1.05rem; font-weight: 700; }

.form-row { margin-bottom: 14px; }
.form-row:last-child { margin-bottom: 0; }

.form-label {
    margin-bottom: 6px;
    font-size: .85rem;
    font-weight: 600;
    color: var(--text-sub);
}

.form-control, .form-select {
    border-color: var(--line);
    border-radius: 10px;
    padding: 10px 12px;
}

.form-control:focus, .form-select:focus {
    border-color: var(--balance);
    box-shadow: 0 0 0 3px var(--balance-soft);
}

.form-hint {
    margin: 7px 0 0;
    font-size: .79rem;
    color: var(--text-mute);
    line-height: 1.45;
}

.amount-input { position: relative; }

.amount-input .form-control {
    padding-right: 34px;
    text-align: right;
    font-size: 1.05rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.amount-suffix {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: .9rem;
    color: var(--text-mute);
    pointer-events: none;
}

.type-picker {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.type-option input { position: absolute; opacity: 0; pointer-events: none; }

.type-option span {
    display: block;
    padding: 10px 4px;
    border: 1px solid var(--line);
    border-radius: 10px;
    text-align: center;
    font-size: .87rem;
    font-weight: 600;
    color: var(--text-sub);
    cursor: pointer;
    transition: all .15s;
}

.type-option input:checked + span {
    border-color: var(--balance);
    background: var(--balance-soft);
    color: var(--balance);
}

.type-option input:focus-visible + span {
    box-shadow: 0 0 0 3px var(--balance-soft);
}

.btn-primary {
    --bs-btn-bg: var(--balance);
    --bs-btn-border-color: var(--balance);
    --bs-btn-hover-bg: #2359c6;
    --bs-btn-hover-border-color: #2359c6;
    border-radius: 10px;
    font-weight: 600;
}

.btn-outline-primary {
    --bs-btn-color: var(--balance);
    --bs-btn-border-color: var(--balance);
    --bs-btn-hover-bg: var(--balance);
    --bs-btn-hover-border-color: var(--balance);
}

/* ------------------------------------------------------------ 반응형 */

@media (max-width: 640px) {
    .app-shell { padding: 0 12px; }

    .month-nav-label { min-width: 92px; font-size: .92rem; }

    .summary-row {
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "label link"
            "value value"
            "note  note";
        padding: 16px;
        gap: 2px 10px;
    }

    .summary-value { font-size: 1.45rem; text-align: left; margin-top: 6px; }

    .page-head { flex-direction: column; align-items: stretch; }
    .page-head .btn-add { width: 100%; justify-content: center; }

    .carry-box { flex-direction: column; align-items: stretch; }
    .carry-box .btn { width: 100%; }

    .panel { padding: 14px; }

    .panel-head { flex-wrap: wrap; }
    .group-right { width: 100%; justify-content: space-between; }

    .entry {
        grid-template-columns: 42px 1fr auto;
        grid-template-areas:
            "date body amount"
            "date body actions";
        gap: 2px 10px;
        padding: 12px 2px;
    }

    .entry-amount { align-self: end; }
    .entry-actions { align-self: start; margin-right: -6px; }

    .quick-actions { grid-template-columns: 1fr; }
}