:root {
    --bg: #f5f7ef;
    --panel: #ffffff;
    --text: #20241f;
    --muted: #5f6b61;
    --income: #1b8f5a;
    --expense: #cc3f3f;
    --balance: #0f5d7a;
    --primary: #0f5d7a;
    --ring: #9ec8d9;
    --shadow: 0 12px 34px rgba(17, 44, 41, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Manrope', sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 15% 10%, rgba(173, 216, 230, 0.5), transparent 45%),
        radial-gradient(circle at 85% 0%, rgba(197, 226, 199, 0.7), transparent 38%),
        linear-gradient(180deg, #f6f7eb 0%, #edf4f8 100%);
    min-height: 100vh;
}

.layout {
    width: min(980px, 92vw);
    margin: 2.5rem auto;
    display: grid;
    gap: 1.25rem;
}

.card {
    background: var(--panel);
    border: 1px solid rgba(12, 54, 72, 0.08);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 1.25rem;
}

h1,
h2,
h3,
p {
    margin: 0;
}

.subtitle {
    margin-top: 0.35rem;
    color: var(--muted);
}

.tabs {
    margin-top: 1.1rem;
    display: flex;
    gap: 0.5rem;
}

.tab {
    border: 1px solid rgba(15, 93, 122, 0.18);
    background: #fff;
    color: var(--text);
    border-radius: 999px;
    padding: 0.5rem 0.9rem;
    cursor: pointer;
}

.tab.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.form-grid,
.transaction-form {
    margin-top: 1rem;
    display: grid;
    gap: 0.75rem;
}

.field {
    display: grid;
    gap: 0.35rem;
}

label {
    font-size: 0.92rem;
    color: var(--muted);
}

input,
select,
button {
    font: inherit;
}

.password-wrap {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.5rem;
    align-items: center;
}

input,
select {
    width: 100%;
    border-radius: 11px;
    border: 1px solid rgba(13, 60, 79, 0.25);
    padding: 0.72rem;
    background: #fff;
}

input:focus,
select:focus {
    outline: 2px solid var(--ring);
    outline-offset: 1px;
}

.btn {
    border: 1px solid rgba(9, 46, 60, 0.2);
    background: #fff;
    border-radius: 11px;
    padding: 0.65rem 1rem;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-toggle {
    padding-inline: 0.85rem;
    white-space: nowrap;
}

.message {
    margin-top: 0.8rem;
    min-height: 1.2rem;
    color: #9c3316;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.summary-grid {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.tile {
    border-radius: 14px;
    padding: 0.9rem;
    color: #fff;
}

.tile p {
    font-size: 1.55rem;
    font-weight: 800;
    margin-top: 0.3rem;
}

.income {
    background: linear-gradient(135deg, #17a66a, #0f7a4d);
}

.expense {
    background: linear-gradient(135deg, #de4f4f, #b63434);
}

.balance {
    background: linear-gradient(135deg, #1d7ca3, #0f5d7a);
}

.form-card,
.list-card {
    margin-top: 0.9rem;
}

.transactions-list {
    list-style: none;
    margin: 0.9rem 0 0;
    padding: 0;
    display: grid;
    gap: 0.6rem;
}

.transactions-list li {
    border: 1px solid rgba(13, 60, 79, 0.15);
    border-radius: 12px;
    padding: 0.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.tx-meta {
    display: grid;
    gap: 0.15rem;
}

.tx-amount {
    font-weight: 800;
}

.tx-amount.income {
    color: var(--income);
    background: none;
}

.tx-amount.expense {
    color: var(--expense);
    background: none;
}

.hidden {
    display: none;
}

@media (max-width: 800px) {
    .summary-grid {
        grid-template-columns: 1fr;
    }

    .topbar {
        align-items: flex-start;
        flex-direction: column;
    }
}