:root {
    --bg: #080d14;
    --sidebar: #0b111b;
    --surface: #101824;
    --surface-2: #0c131d;
    --surface-hover: #162130;
    --border: #213044;

    --text: #f3f6fa;
    --muted: #8998aa;

    --primary: #68e0b5;
    --primary-dark: #39b98e;

    --danger: #fb7185;
    --warning: #fbbf24;

    --sidebar-width: 250px;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    margin: 0;
    min-height: 100vh;

    background: var(--bg);
    color: var(--text);

    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;

    font-size: 14px;
    line-height: 1.5;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}


/* =========================
   APP SHELL
========================= */

.app-shell {
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    top: 0;
    left: 0;

    width: var(--sidebar-width);
    height: 100vh;

    padding: 26px 18px;

    overflow-y: auto;

    background: var(--sidebar);

    border-right: 1px solid var(--border);
}

.main {
    min-height: 100vh;

    margin-left: var(--sidebar-width);

    padding: 30px;
}


/* =========================
   BRAND
========================= */

.logo {
    display: flex;
    align-items: center;

    gap: 12px;

    padding: 0 8px;

    margin-bottom: 35px;
}

.logo-icon {
    width: 42px;
    height: 42px;

    flex-shrink: 0;

    display: grid;
    place-items: center;

    border-radius: 13px;

    background:
        linear-gradient(
            135deg,
            var(--primary),
            var(--primary-dark)
        );

    color: #06110d;

    font-size: 20px;
    font-weight: 900;
}

.logo-name {
    font-size: 20px;
    font-weight: 800;

    letter-spacing: 3px;
}

.logo-subtitle {
    display: block;

    margin-top: 2px;

    color: var(--muted);

    font-size: 9px;

    letter-spacing: 1.3px;
}


/* =========================
   SIDEBAR
========================= */

.menu {
    display: flex;
    flex-direction: column;

    gap: 5px;
}

.menu a,
.sidebar-logout {
    width: 100%;

    display: flex;
    align-items: center;

    gap: 12px;

    padding: 11px 13px;

    border: 0;
    border-radius: 10px;

    background: transparent;

    color: var(--muted);

    text-align: left;

    transition:
        background .18s ease,
        color .18s ease;
}

.menu a:hover,
.sidebar-logout:hover {
    background: var(--surface-hover);

    color: var(--text);
}

.menu a.active {
    background: var(--surface);

    color: var(--primary);
}

.sidebar-logout {
    margin-top: 18px;
}

.sidebar-logout:hover {
    color: var(--danger);
}


/* =========================
   MOBILE HEADER
========================= */

.mobile-header {
    display: none;

    padding: 16px 20px;

    border-bottom: 1px solid var(--border);

    background: var(--sidebar);

    font-weight: 800;

    letter-spacing: 3px;
}


/* =========================
   PAGE HEADER
========================= */

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;

    gap: 20px;

    margin-bottom: 28px;
}

.page-title {
    margin: 0;

    font-size: 28px;
    line-height: 1.2;
}

.page-subtitle {
    margin-top: 6px;

    color: var(--muted);

    font-size: 14px;
}


/* =========================
   BUTTONS
========================= */

.add-button,
.secondary-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;

    min-height: 42px;

    padding: 10px 17px;

    border-radius: 10px;

    font-weight: 700;

    white-space: nowrap;

    transition:
        transform .15s ease,
        background .15s ease,
        border-color .15s ease;
}

.add-button {
    border: 1px solid var(--primary);

    background: var(--primary);

    color: #06110d;
}

.add-button:hover {
    background: #7aebc3;

    transform: translateY(-1px);
}

.secondary-button {
    border: 1px solid var(--border);

    background: var(--surface);

    color: var(--text);
}

.secondary-button:hover {
    background: var(--surface-hover);
}


/* =========================
   CARDS
========================= */

.card {
    padding: 21px;

    border: 1px solid var(--border);
    border-radius: 16px;

    background: var(--surface);
}

.card-label {
    margin-bottom: 10px;

    color: var(--muted);

    font-size: 13px;
}


/* =========================
   DASHBOARD
========================= */

.currency-tabs {
    display: flex;
    flex-wrap: wrap;

    gap: 8px;

    margin-bottom: 20px;
}

.currency-tabs button {
    padding: 8px 15px;

    border: 1px solid var(--border);
    border-radius: 9px;

    background: var(--surface);

    color: var(--muted);
}

.currency-tabs button.active {
    border-color: var(--primary);

    background: var(--primary);

    color: #07120e;
}

.balance-grid {
    display: grid;

    grid-template-columns:
        repeat(3, minmax(0, 1fr));

    gap: 18px;
}

.balance {
    font-size: 30px;
    font-weight: 800;
}

.currency-code {
    margin-top: 8px;

    color: var(--muted);

    font-size: 12px;
}

.dashboard-grid {
    display: grid;

    grid-template-columns:
        minmax(0, 2fr)
        minmax(260px, 1fr);

    gap: 18px;

    margin-top: 18px;
}

.chart-placeholder {
    height: 220px;

    display: grid;
    place-items: center;

    margin-top: 18px;

    border: 1px dashed var(--border);
    border-radius: 12px;

    color: var(--muted);
}

.stat {
    margin-top: 20px;
}

.stat-value {
    margin-top: 5px;

    font-size: 21px;
    font-weight: 700;
}

.income,
.positive {
    color: var(--primary);
}

.expense,
.negative {
    color: var(--danger);
}


/* =========================
   TABLES
========================= */

.table-responsive {
    width: 100%;

    overflow-x: auto;
}

table {
    width: 100%;

    border-collapse: collapse;

    margin-top: 16px;
}

th,
td {
    padding: 14px 10px;

    border-bottom: 1px solid var(--border);

    text-align: left;
}

th {
    color: var(--muted);

    font-size: 11px;
    font-weight: 600;

    letter-spacing: .5px;
}

.empty {
    padding: 35px !important;

    color: var(--muted);

    text-align: center;
}


/* =========================
   MESSAGES
========================= */

.success-message {
    margin-bottom: 18px;

    padding: 13px 16px;

    border: 1px solid rgba(104, 224, 181, .3);
    border-radius: 11px;

    background: rgba(104, 224, 181, .08);

    color: var(--primary);
}

.auth-error {
    margin-bottom: 20px;

    padding: 13px 15px;

    border: 1px solid rgba(251, 113, 133, .35);
    border-radius: 10px;

    background: rgba(251, 113, 133, .08);

    color: #fda4af;
}

.auth-error ul {
    margin:
        8px 0
        0 18px;

    padding: 0;
}


/* =========================
   ACCOUNT LIST
========================= */

.account-grid {
    display: grid;

    grid-template-columns:
        repeat(
            auto-fill,
            minmax(300px, 1fr)
        );

    gap: 18px;
}

.account-card {
    min-height: 220px;
}

.account-card-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;

    gap: 16px;

    padding-bottom: 18px;

    border-bottom: 1px solid var(--border);
}

.account-type {
    margin-bottom: 6px;

    color: var(--muted);

    font-size: 11px;

    text-transform: uppercase;

    letter-spacing: 1px;
}

.account-name {
    margin: 0;

    font-size: 20px;
}

.account-meta {
    margin-top: 6px;

    color: var(--muted);

    font-size: 12px;
}

.status-badge {
    flex-shrink: 0;

    padding: 5px 8px;

    border-radius: 7px;

    background: rgba(104, 224, 181, .1);

    color: var(--primary);

    font-size: 10px;
}

.account-balances {
    padding: 16px 0;
}

.account-balance-row {
    padding: 8px 0;
}

.currency-small {
    margin-bottom: 3px;

    color: var(--muted);

    font-size: 11px;
}

.account-balance-value {
    font-size: 23px;
    font-weight: 800;
}

.account-footer {
    padding-top: 12px;

    border-top: 1px solid var(--border);

    color: var(--muted);

    font-size: 11px;
}


/* =========================
   EMPTY STATE
========================= */

.empty-state {
    padding: 70px 30px;

    text-align: center;
}

.empty-state-icon {
    margin-bottom: 15px;

    color: var(--primary);

    font-size: 42px;
}

.empty-state h2 {
    margin: 0 0 8px;
}

.empty-state p {
    max-width: 420px;

    margin:
        0 auto
        25px;

    color: var(--muted);
}


/* =========================
   ACCOUNT FORM
========================= */

.account-form {
    width: 100%;

    max-width: 1100px;

    margin-bottom: 40px;
}

.form-section {
    padding: 8px 0 28px;
}

.form-section + .form-section {
    padding-top: 28px;

    border-top: 1px solid var(--border);
}

.form-section h2 {
    margin:
        0 0
        18px;

    font-size: 17px;
}

.form-grid {
    display: grid;

    grid-template-columns:
        repeat(2, minmax(0, 1fr));

    gap: 18px;
}

.field {
    min-width: 0;
}

.field label {
    display: block;

    margin-bottom: 7px;

    color: #cbd5e1;

    font-size: 12px;
    font-weight: 600;
}

.field input,
.field select,
.field textarea {
    display: block;

    width: 100%;

    min-height: 44px;

    padding: 11px 13px;

    border: 1px solid var(--border);
    border-radius: 9px;

    outline: none;

    background: #0a111a;

    color: var(--text);

    transition:
        border-color .15s ease,
        box-shadow .15s ease;
}

.field textarea {
    min-height: 110px;

    resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    border-color: var(--primary);

    box-shadow:
        0 0 0 3px
        rgba(104, 224, 181, .08);
}

.field select {
    appearance: auto;
}

.field-help {
    margin:
        -7px 0
        18px;

    color: var(--muted);

    font-size: 12px;
}


/* =========================
   CURRENCY SELECTOR
========================= */

.currency-select-grid {
    display: grid;

    grid-template-columns:
        repeat(3, minmax(0, 1fr));

    gap: 14px;
}

.currency-option {
    display: block;

    min-width: 0;

    padding: 16px;

    border: 1px solid var(--border);
    border-radius: 12px;

    background: var(--surface-2);

    transition:
        border-color .15s ease,
        transform .15s ease;
}

.currency-option:hover {
    border-color: #30435c;

    transform: translateY(-1px);
}

.currency-check {
    display: flex;
    align-items: center;

    gap: 10px;
}

.currency-check input[type="checkbox"] {
    width: 18px;
    height: 18px;

    flex-shrink: 0;

    accent-color: var(--primary);
}

.currency-check strong {
    display: block;

    font-size: 14px;
}

.currency-check span {
    display: block;

    margin-top: 2px;

    color: var(--muted);

    font-size: 10px;
}

.opening-balance {
    margin-top: 16px;
}

.opening-balance span {
    display: block;

    margin-bottom: 6px;

    color: var(--muted);

    font-size: 10px;
}

.opening-balance input {
    width: 100%;

    min-height: 42px;

    padding: 10px 11px;

    border: 1px solid var(--border);
    border-radius: 8px;

    outline: none;

    background: var(--bg);

    color: var(--text);
}

.opening-balance input:focus {
    border-color: var(--primary);
}


/* =========================
   FORM ACTIONS
========================= */

.form-actions {
    display: flex;
    justify-content: flex-end;

    gap: 10px;

    padding-top: 25px;

    border-top: 1px solid var(--border);
}


/* =========================
   RESPONSIVE
========================= */

@media (max-width: 1000px) {

    .balance-grid {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }

    .currency-select-grid {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }
}


@media (max-width: 900px) {

    .sidebar {
        display: none;
    }

    .mobile-header {
        display: flex;
    }

    .main {
        margin-left: 0;

        padding: 22px;
    }

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


@media (max-width: 700px) {

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

    .form-grid,
    .currency-select-grid,
    .balance-grid {
        grid-template-columns: 1fr;
    }

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

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

    .form-actions .add-button,
    .form-actions .secondary-button {
        width: 100%;
    }
}


@media (max-width: 480px) {

    .main {
        padding: 16px;
    }

    .page-title {
        font-size: 24px;
    }

    .card {
        padding: 17px;
    }

    .account-balance-value {
        font-size: 20px;
    }
}

/* Transaction / Dashboard additions */

.topbar-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.currency-tabs a {
    display: inline-flex;

    padding: 8px 15px;

    border: 1px solid var(--border);
    border-radius: 9px;

    background: var(--surface);

    color: var(--muted);

    font-weight: 600;
}

.currency-tabs a.active {
    background: var(--primary);
    border-color: var(--primary);

    color: #07120e;
}

.transaction-filters {
    display: flex;
    align-items: center;

    gap: 10px;

    flex-wrap: wrap;

    margin-bottom: 18px;
}

.transaction-filters select {
    min-height: 40px;

    padding: 8px 12px;

    border: 1px solid var(--border);
    border-radius: 9px;

    background: #0a111a;

    color: var(--text);
}

.text-link {
    color: var(--primary);

    font-size: 13px;
}

.mono {
    font-family:
        ui-monospace,
        SFMono-Regular,
        Menlo,
        Monaco,
        Consolas,
        monospace;

    font-size: 12px;
}

.transaction-type {
    display: inline-flex;

    padding: 4px 8px;

    border-radius: 7px;

    background: var(--surface-hover);

    color: var(--muted);

    font-size: 10px;

    text-transform: uppercase;
}

.transaction-type-income {
    background: rgba(104, 224, 181, .1);

    color: var(--primary);
}

.transaction-type-expense {
    background: rgba(251, 113, 133, .1);

    color: var(--danger);
}

.pagination-wrap {
    margin-top: 20px;
}

.dashboard-stats {
    display: grid;

    grid-template-columns:
        repeat(3, minmax(0, 1fr));

    gap: 16px;

    margin-top: 22px;
}

.dashboard-stat {
    padding: 17px;

    border: 1px solid var(--border);
    border-radius: 12px;

    background: var(--surface-2);
}

.dashboard-stat span {
    display: block;

    margin-bottom: 8px;

    color: var(--muted);

    font-size: 11px;
}

.dashboard-stat strong {
    font-size: 20px;
}

.quick-actions {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 10px;

    margin-top: 20px;
}

.quick-actions a {
    padding: 14px 10px;

    border: 1px solid var(--border);
    border-radius: 10px;

    background: var(--surface-2);

    text-align: center;

    font-size: 12px;
}

.quick-actions a:hover {
    border-color: var(--primary);

    color: var(--primary);
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 15px;
}

@media (max-width: 800px) {

    .dashboard-stats {
        grid-template-columns: 1fr;
    }

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


/* =========================
   Transfers / FX
========================= */

.transfer-grid {
    display: grid;

    grid-template-columns:
        minmax(0, 1fr)
        70px
        minmax(0, 1fr);

    gap: 20px;

    align-items: center;

    padding: 12px 0 30px;
}

.transfer-side {
    padding: 22px;

    border: 1px solid var(--border);
    border-radius: 14px;

    background: var(--surface-2);
}

.transfer-side .field + .field {
    margin-top: 17px;
}

.transfer-label {
    margin-bottom: 18px;

    color: var(--primary);

    font-size: 11px;
    font-weight: 800;

    letter-spacing: 2px;
}

.transfer-arrow {
    display: grid;
    place-items: center;

    width: 52px;
    height: 52px;

    margin: auto;

    border: 1px solid var(--border);
    border-radius: 50%;

    background: var(--surface);

    color: var(--primary);

    font-size: 24px;
}

.fx-section {
    margin-top: 5px;
}

.fx-preview {
    display: flex;
    flex-direction: column;
    justify-content: center;

    min-height: 82px;

    padding: 13px 16px;

    border: 1px solid var(--border);
    border-radius: 10px;

    background: var(--surface-2);
}

.fx-preview span {
    color: var(--muted);

    font-size: 10px;
}

.fx-preview strong {
    margin: 4px 0;

    color: var(--primary);

    font-size: 19px;
}

.fx-preview small {
    color: var(--muted);

    font-size: 10px;
}

.transfer-inline-arrow {
    display: inline-block;

    margin: 0 7px;

    color: var(--primary);
}

.transfer-amount-line {
    white-space: nowrap;
}

.transfer-amount-line + .transfer-amount-line {
    margin-top: 4px;
}

.table-note {
    margin-top: 4px;

    color: var(--muted);

    font-size: 10px;
}

.transaction-type-transfer {
    background: rgba(96, 165, 250, .1);

    color: #93c5fd;
}

@media (max-width: 800px) {

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

    .transfer-arrow {
        transform: rotate(90deg);
    }
}