:root {
    --bg: #f4f7fb;
    --card: #ffffff;
    --card-soft: #f8fafc;

    --text: #111827;
    --muted: #64748b;
    --border: #e2e8f0;

    --primary: #2563eb;
    --primary-light: #dbeafe;

    --green: #16a34a;
    --green-light: #dcfce7;

    --red: #dc2626;
    --red-light: #fee2e2;

    --yellow: #ca8a04;
    --yellow-light: #fef3c7;

    --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
    --radius: 22px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 34%),
        var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    min-height: 100dvh;
}

button,
input,
select {
    font: inherit;
}

button {
    border: none;
}

.app {
    width: min(1500px, calc(100% - 32px));
    min-height: 100dvh;
    margin: 0 auto;
    padding: 24px 0;
    display: flex;
    flex-direction: column;
}

.eyebrow {
    display: inline-block;
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.header h1 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 3.2rem);
    letter-spacing: -0.04em;
}

.header p {
    color: var(--muted);
    margin: 8px 0 0;
    max-width: 620px;
    line-height: 1.5;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    margin-bottom: 18px;
}

.summary-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: none;
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.summary-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    font-size: 1rem;
}

.summary-card span {
    display: block;
    color: var(--muted);
    margin-bottom: 6px;
    font-size: 0.86rem;
    font-weight: 700;
}

.summary-card strong {
    display: block;
    font-size: clamp(1.25rem, 4vw, 1.8rem);
    letter-spacing: -0.04em;
}

.summary-card.bank .summary-icon {
    background: #eff6ff;
    color: var(--primary);
}

.summary-card.cash .summary-icon {
    background: #f0fdf4;
    color: var(--green);
}

.summary-card.total .summary-icon {
    background: #fffbeb;
    color: var(--yellow);
}

.panel {
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    backdrop-filter: blur(14px);
}

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

.tabs {
    display: flex;
    align-items: center;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 2px;
}

.tab {
    background: var(--card-soft);
    color: var(--muted);
    border: 1px solid var(--border);
    padding: 12px 16px;
    border-radius: 999px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    transition: 0.2s ease;
}

.tab:hover {
    color: var(--primary);
    border-color: #bfdbfe;
}

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

.panel-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn.secondary {
    background: #ffffff;
    color: var(--primary);
    border: 1px solid #bfdbfe;
}

.profit-modal {
    width: min(520px, 100%);
}

.profit-content {
    padding: 18px 22px 22px;
    overflow-y: auto;
}

.profit-list {
    margin-top: 16px;
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    background: #ffffff;
}

.profit-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
}

.profit-row:last-child {
    border-bottom: none;
}

.profit-row span {
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 700;
}

.profit-row strong {
    min-width: 130px;
    color: #111827;
    font-size: 1rem;
    letter-spacing: -0.03em;
    white-space: nowrap;
    text-align: right;
    border-left: 1px solid var(--border);
    padding-left: 16px;
}

.profit-row.muted {
    background: #fafafa;
}

.profit-row.result {
    background: #f0fdf4;
}

.profit-row.result strong {
    color: var(--green);
    font-size: 1.12rem;
}

.profit-row.result-light {
    background: #eff6ff;
}

.profit-row.result-light strong {
    color: var(--primary);
    font-size: 1.12rem;
}

.profit-positive {
    color: var(--green) !important;
}

.profit-negative {
    color: var(--red) !important;
}

.profit-neutral {
    color: var(--text) !important;
}

.toolbar {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: 12px;
    margin-bottom: 18px;
}

input,
select {
    width: 100%;
    background: white;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 14px;
    padding: 13px 14px;
    outline: none;
}

input:focus,
select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

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

.month-board {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 26px;
    padding: 18px;
    box-shadow: var(--shadow);
    display: grid;
    gap: 16px;
}

.month-board:not(:last-child) {
    margin-bottom: 26px;
}

.month-board-header {
    background: transparent;
    border: 0px;
    border-radius: 20px;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.month-board-header span {
    display: block;
    color: var(--primary);
    font-size: 0.76rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}

.month-board-header h2 {
    margin: 0;
    font-size: 1.45rem;
    letter-spacing: -0.04em;
    text-transform: capitalize;
}

.month-board-header strong {
    color: var(--primary);
    font-size: 1.35rem;
    white-space: nowrap;
}

.month-board-content {
    display: grid;
    gap: 12px;
}

.transaction-card {
    background: var(--card-soft);
    border: 1px solid var(--border);
    border-left: 5px solid var(--primary);
    border-radius: 16px;
    padding: 14px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 14px;
    box-shadow: none;
}

.transaction-card.income {
    border-left-color: var(--green);
}

.transaction-card.expense {
    border-left-color: var(--red);
}

.transaction-card.debt {
    border-left-color: var(--yellow);
}

.transaction-info h3 {
    margin: 0 0 8px;
    font-size: 1.05rem;
}

.transaction-info p {
    margin: 0;
    color: var(--muted);
    line-height: 1.5;
}

.main-sale-info {
    display: flex;
    align-items: center;
    gap: 14px;
}

.quantity {
    min-width: 74px;
    min-height: 54px;
    background: var(--card-soft);
    border: 1px solid var(--border);
    border-radius: 16px;
    display: grid;
    place-items: center;
    text-align: center;
    color: var(--primary);
    font-size: 1.05rem;
    padding: 8px;
}

.transaction-card.income .quantity {
    color: var(--green);
    background: var(--green-light);
    border-color: #bbf7d0;
}

.transaction-card.expense .quantity {
    color: var(--red);
    background: var(--red-light);
    border-color: #fecaca;
}

.transaction-card.debt .quantity {
    color: var(--yellow);
    background: var(--yellow-light);
    border-color: #fde68a;
}

.transaction-info h3 {
    margin: 0 0 4px;
    font-size: 1.15rem;
}

.transaction-info p {
    margin: 0;
    color: var(--muted);
    line-height: 1.5;
}

.description {
    margin-top: 12px !important;
    padding: 10px 12px;
    background: var(--card-soft);
    border-radius: 12px;
}

.transaction-value span {
    display: block;
    color: var(--muted);
    font-size: 0.86rem;
    margin-bottom: 4px;
}

.transaction-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.badge {
    background: var(--card-soft);
    border: 1px solid var(--border);
    color: var(--muted);
    border-radius: 999px;
    padding: 7px 10px;
    font-size: 0.82rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.transaction-value {
    text-align: right;
}

.transaction-value strong {
    display: block;
    font-size: 1.22rem;
    margin-bottom: 10px;
    letter-spacing: -0.03em;
}

.transaction-card.income .transaction-value strong {
    color: var(--green);
}

.transaction-card.expense .transaction-value strong {
    color: var(--red);
}

.transaction-card.debt .transaction-value strong {
    color: var(--yellow);
}

.actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    flex-wrap: wrap;
}

.btn {
    border-radius: 14px;
    padding: 12px 15px;
    cursor: pointer;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn.primary {
    background: var(--primary);
    color: white;
}

.btn.neutral {
    background: #e2e8f0;
    color: #334155;
}

.btn.success {
    background: var(--green);
    color: white;
}

.btn.warning {
    background: var(--yellow);
    color: white;
}

.btn.danger {
    background: var(--red);
    color: white;
}

.btn.outline {
    background: white;
    border: 1px solid currentColor;
}

.btn.small {
    padding: 9px 11px;
    font-size: 0.86rem;
}

.empty-state {
    padding: 42px 12px;
    text-align: center;
    color: var(--muted);
    background: var(--card-soft);
    border: 1px dashed var(--border);
    border-radius: 18px;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(6px);
    display: grid;
    place-items: center;
    padding: 18px;
    z-index: 50;
}

.modal {
    width: min(620px, 100%);
    max-height: calc(100dvh - 36px);
    background: white;
    border-radius: 24px;
    box-shadow: 0 30px 90px rgba(15, 23, 42, 0.28);
    padding: 0;
    animation: modalIn 0.2s ease;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    padding: 22px 22px 14px;
    margin-bottom: 0;
    border-bottom: 1px solid var(--border);
}

#transactionForm {
    overflow-y: auto;
    padding: 18px 22px 22px;
}

.modal-actions {
    position: sticky;
    bottom: 0;
    background: white;
    border-top: 1px solid var(--border);
    padding-top: 14px;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.6rem;
    letter-spacing: -0.04em;
}

.icon-button {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: var(--card-soft);
    color: var(--muted);
    cursor: pointer;
    font-size: 1.1rem;
}

.icon-button:hover {
    color: var(--red);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

label:first-child,
label:last-child {
    grid-column: 1 / -1;
}

label {
    gap: 6px;
    font-size: 0.85rem;
}

input,
select {
    padding: 11px 12px;
    border-radius: 12px;
}

label {
    display: grid;
    gap: 8px;
    color: var(--muted);
    font-size: 0.92rem;
    font-weight: 700;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 18px;
}

.hidden {
    display: none;
}

@media (max-width: 900px) {
    .summary-grid {
        grid-template-columns: 1fr;
    }

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

    .toolbar {
        grid-template-columns: 1fr;
    }

    .header {
        flex-direction: column;
    }

    .header .btn {
        width: 100%;
    }
}

@media (max-width: 600px) {
    .app {
        width: min(100% - 20px, 1180px);
        padding: 20px 0;
    }

    .summary-card,
    .panel {
        padding: 16px;
    }

    .summary-card {
        align-items: flex-start;
    }

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

    .tab,
    .btn {
        width: 100%;
    }

    .transaction-card {
        grid-template-columns: 1fr;
    }

    .transaction-value {
        text-align: left;
    }

    .actions {
        justify-content: flex-start;
    }

    .modal {
        padding: 18px;
        border-radius: 20px;
    }

    .modal-actions {
        flex-direction: column-reverse;
    }

    .main-sale-info {
        align-items: flex-start;
    }

    .quantity {
        min-width: 68px;
    }

    .month-board {
        padding: 14px;
        border-radius: 22px;
    }

    .month-board-header {
        align-items: flex-start;
        flex-direction: column;
        padding: 15px;
    }

    .month-board-header h2 {
        font-size: 1.25rem;
    }

    .month-board-header strong {
        font-size: 1.15rem;
    }
    
}