/* =========================================================
   ControleGastos · light + mobile-first
   ========================================================= */

:root {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --border: #e4e9f2;
    --border-strong: #d2d9e6;
    --text: #1a1f2e;
    --text-soft: #4a5263;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-2: #1d4ed8;
    --primary-soft: #dbeafe;
    --primary-text: #1e3a8a;
    --income: #10b981;
    --income-soft: #d1fae5;
    --income-text: #047857;
    --expense: #ef4444;
    --expense-soft: #fee2e2;
    --expense-text: #b91c1c;
    --warning: #f59e0b;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.1);
    --radius: 16px;
    --radius-sm: 12px;
    --radius-lg: 20px;
    --tap: 44px;
    --transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    font-size: 16px;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

button {
    cursor: pointer;
    border: none;
    background: none;
}

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

:focus-visible {
    outline: 3px solid rgba(37, 99, 235, 0.45);
    outline-offset: 2px;
    border-radius: 8px;
}

/* ===== Layout ===== */

.app {
    max-width: 720px;
    margin: 0 auto;
    padding: 16px 16px calc(96px + var(--safe-bottom));
    display: flex;
    flex-direction: column;
    gap: 16px;
    min-height: 100vh;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 4px 0;
}

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

.brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-2));
    color: #fff;
    display: grid;
    place-items: center;
    font-size: 0.95rem;
    box-shadow: 0 6px 14px rgba(37, 99, 235, 0.28);
}

.brand-name {
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
}

.period-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-soft);
    box-shadow: var(--shadow-sm);
}

.main {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ===== Balance card ===== */

.balance-card {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
    position: relative;
    overflow: hidden;
}

.balance-card::after {
    content: "";
    position: absolute;
    top: -40px;
    right: -40px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    pointer-events: none;
}

.balance-label {
    display: block;
    font-size: 0.82rem;
    opacity: 0.85;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.balance-value {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-top: 4px;
    margin-bottom: 16px;
}

.balance-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.split {
    background: rgba(255, 255, 255, 0.14);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    padding: 10px 12px;
}

.split-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.74rem;
    font-weight: 600;
    opacity: 0.95;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.split strong {
    display: block;
    font-size: 1rem;
    font-weight: 800;
    margin-top: 4px;
    letter-spacing: -0.01em;
}

/* ===== Card base ===== */

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow-sm);
}

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 14px;
}

.card-title {
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 14px;
}

.card-head .card-title {
    margin-bottom: 0;
}

/* ===== Form ===== */

.form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.field-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--muted);
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

input[type="text"],
input[type="number"],
input[type="date"],
select {
    width: 100%;
    min-height: var(--tap);
    padding: 11px 14px;
    background: var(--surface-2);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 1rem;
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
}

input::placeholder {
    color: #9ca3af;
}

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

input:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--surface);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

select {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none'><path d='M1 1.5L6 6.5L11 1.5' stroke='%236b7280' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/></svg>");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 12px 8px;
    padding-right: 40px;
}

/* ===== Segmented (tipo) ===== */

.seg {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    padding: 4px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.seg-btn {
    min-height: 40px;
    border-radius: 9px;
    color: var(--muted);
    font-weight: 700;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: var(--transition);
}

.seg-btn:hover {
    color: var(--text);
}

.seg-btn.active[data-tipo="DESPESA"] {
    background: var(--expense-soft);
    color: var(--expense-text);
    box-shadow: var(--shadow-sm);
}

.seg-btn.active[data-tipo="RECEITA"] {
    background: var(--income-soft);
    color: var(--income-text);
    box-shadow: var(--shadow-sm);
}

/* ===== Switch parcelado ===== */

.credit {
    background: var(--surface-2);
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.switch {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
    min-height: var(--tap);
}

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

.switch-track {
    width: 42px;
    height: 24px;
    background: #d1d5db;
    border-radius: 999px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.switch-thumb {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.switch input:checked + .switch-track {
    background: var(--primary);
}

.switch input:checked + .switch-track .switch-thumb {
    transform: translateX(18px);
}

.switch input:focus-visible + .switch-track {
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.switch-text {
    font-weight: 600;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.parcelas-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    align-items: end;
}

.parcela-preview {
    background: var(--primary-soft);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.parcela-preview strong {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--primary-text);
    letter-spacing: -0.01em;
}

.parcela-preview small {
    font-size: 0.74rem;
    color: var(--text-soft);
}

/* ===== Buttons ===== */

.btn {
    min-height: var(--tap);
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
}

.btn-primary:hover { background: var(--primary-2); }

.btn-ghost {
    background: var(--surface-2);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--surface);
    border-color: var(--border-strong);
}

.btn-block {
    width: 100%;
}

.icon-btn {
    width: var(--tap);
    height: var(--tap);
    border-radius: 12px;
    display: grid;
    place-items: center;
    color: var(--text-soft);
    background: var(--surface-2);
    border: 1px solid var(--border);
    transition: var(--transition);
    font-size: 0.95rem;
}

.icon-btn:hover {
    background: var(--surface);
    color: var(--text);
}

.icon-btn.danger { color: var(--expense); }
.icon-btn.edit { color: var(--primary); }

/* ===== Filtros ===== */

.filters {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
    margin-bottom: 14px;
}

.filters-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.filters-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* ===== Lista de transações ===== */

.tx-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tx-item {
    display: grid;
    grid-template-columns: 40px 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.tx-item:hover {
    background: var(--surface);
    border-color: var(--border-strong);
}

.tx-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: grid;
    place-items: center;
    font-size: 0.95rem;
    flex-shrink: 0;
}

.tx-icon.income {
    background: var(--income-soft);
    color: var(--income-text);
}

.tx-icon.expense {
    background: var(--expense-soft);
    color: var(--expense-text);
}

.tx-info {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.tx-desc {
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tx-meta {
    font-size: 0.78rem;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.tx-meta .dot {
    width: 3px;
    height: 3px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.6;
}

.tx-amount {
    font-weight: 800;
    font-size: 0.98rem;
    letter-spacing: -0.01em;
    text-align: right;
    white-space: nowrap;
}

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

.tx-actions {
    display: none;
}

.tx-item.expanded {
    grid-template-columns: 40px 1fr;
    grid-template-rows: auto auto;
}

.tx-item.expanded .tx-amount {
    grid-column: 2;
}

.tx-item.expanded .tx-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
}

.tx-actions .icon-btn {
    flex: 1;
    height: 38px;
    width: auto;
}

.empty {
    text-align: center;
    padding: 32px 16px;
    color: var(--muted);
}

.empty i {
    font-size: 2.2rem;
    opacity: 0.4;
    margin-bottom: 10px;
    display: block;
}

.empty p {
    font-weight: 600;
    color: var(--text-soft);
}

/* ===== Charts ===== */

.charts {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 14px;
}

.chart {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
}

.chart-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-soft);
    margin-bottom: 8px;
}

.chart canvas {
    width: 100% !important;
    height: 200px !important;
}

/* ===== KPIs ===== */

.kpis {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.kpi {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
}

.kpi-label {
    display: block;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.kpi strong {
    display: block;
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    margin-bottom: 2px;
}

.kpi small {
    font-size: 0.74rem;
    color: var(--muted);
}

/* ===== FAB ===== */

.fab {
    position: fixed;
    right: 20px;
    bottom: calc(20px + var(--safe-bottom));
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 1.3rem;
    box-shadow: 0 12px 28px rgba(37, 99, 235, 0.4);
    transition: var(--transition);
    z-index: 50;
    display: grid;
    place-items: center;
}

.fab:hover {
    background: var(--primary-2);
    transform: translateY(-2px);
    box-shadow: 0 16px 32px rgba(37, 99, 235, 0.45);
}

.fab:active { transform: scale(0.95); }

/* ===== Modal ===== */

.modal {
    position: fixed;
    inset: 0;
    display: none;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    padding: 16px;
    align-items: flex-end;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--surface);
    border-radius: 20px 20px 16px 16px;
    width: 100%;
    max-width: 540px;
    margin: 0 auto;
    padding: 18px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slide-up 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slide-up {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.modal-head h3 {
    font-size: 1.1rem;
    font-weight: 800;
}

.modal-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 6px;
}

/* ===== Toast ===== */

.toast {
    position: fixed;
    left: 16px;
    right: 16px;
    bottom: calc(86px + var(--safe-bottom));
    background: var(--text);
    color: #fff;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    transform: translateY(20px);
    opacity: 0;
    pointer-events: none;
    transition: 220ms ease;
    z-index: 1100;
    font-weight: 600;
    font-size: 0.92rem;
    max-width: 540px;
    margin: 0 auto;
}

.toast.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.toast.success i { color: #4ade80; }
.toast.error { background: #dc2626; }
.toast.error i { color: #fff; }

/* ===== Tablet+ ===== */

@media (min-width: 720px) {
    .app {
        max-width: 880px;
        padding: 24px 24px calc(24px + var(--safe-bottom));
    }

    .balance-value { font-size: 2.5rem; }

    .balance-split { grid-template-columns: 1fr 1fr; }

    .charts {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .charts .chart:last-child {
        grid-column: 1 / -1;
    }

    .kpis {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===== Desktop ===== */

@media (min-width: 1024px) {
    .app {
        max-width: 1100px;
    }

    .main {
        display: grid;
        grid-template-columns: 1fr 1.4fr;
        gap: 20px;
        align-items: start;
    }

    .balance-card {
        grid-column: 1 / -1;
    }

    #nova-transacao {
        position: sticky;
        top: 20px;
    }

    #transacoes,
    #analise {
        grid-column: 2;
    }

    #transacoes {
        grid-row: 2;
    }

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

    .fab { display: none; }
}

/* ===== Reduce motion ===== */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}