/* ===== CSS Variables / Design System ===== */
:root {
    /* Colors - Pastel Palette */
    --primary: #6366F1;
    --primary-light: #818CF8;
    --primary-dark: #4F46E5;

    --success: #10B981;
    --success-light: #34D399;
    --success-bg: #D1FAE5;

    --danger: #EF4444;
    --danger-light: #F87171;
    --danger-bg: #FEE2E2;

    --warning: #F59E0B;
    --info: #3B82F6;

    /* Neutrals */
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-card: #FFFFFF;

    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;

    --border: #E2E8F0;
    --border-light: #F1F5F9;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #EEF2FF 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Header ===== */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    font-size: 1.75rem;
    animation: bounce 2s ease infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.month-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
}

.month-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.month-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

#currentMonth {
    font-weight: 500;
    min-width: 140px;
    text-align: center;
}

/* ===== Main Content ===== */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    padding-bottom: 100px;
}

/* ===== Dashboard Cards ===== */
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: var(--transition-base);
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.card-balance::before {
    background: linear-gradient(90deg, var(--primary), var(--info));
}

.card-income::before {
    background: linear-gradient(90deg, var(--success), var(--success-light));
}

.card-expense::before {
    background: linear-gradient(90deg, var(--danger), var(--danger-light));
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-icon {
    font-size: 2.5rem;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
}

.card-balance .card-icon {
    background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
}

.card-income .card-icon {
    background: var(--success-bg);
}

.card-expense .card-icon {
    background: var(--danger-bg);
}

.card-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.card-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.card-value.income {
    color: var(--success);
}

.card-value.expense {
    color: var(--danger);
}

/* ===== Sections ===== */
.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--primary);
    border-radius: var(--radius-full);
}

/* ===== Chart Section ===== */
.chart-section {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-2xl);
    border: 1px solid var(--border-light);
}

.chart-container {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-empty {
    color: var(--text-muted);
    text-align: center;
    font-style: italic;
}

#categoryChart {
    display: none;
}

/* ===== History Section ===== */
.history-section {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
}

.transaction-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-height: 500px;
    overflow-y: auto;
}

.transaction-list::-webkit-scrollbar {
    width: 6px;
}

.transaction-list::-webkit-scrollbar-track {
    background: var(--border-light);
    border-radius: var(--radius-full);
}

.transaction-list::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-full);
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-2xl);
    font-style: italic;
}

.transaction-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.transaction-item:hover {
    border-color: var(--border);
    transform: translateX(4px);
}

.transaction-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.transaction-item.income .transaction-icon {
    background: var(--success-bg);
}

.transaction-item.expense .transaction-icon {
    background: var(--danger-bg);
}

.transaction-details {
    flex: 1;
    min-width: 0;
}

.transaction-category {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.transaction-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.transaction-meta {
    text-align: right;
    flex-shrink: 0;
}

.transaction-value {
    font-weight: 700;
    font-size: 1rem;
}

.transaction-item.income .transaction-value {
    color: var(--success);
}

.transaction-item.expense .transaction-value {
    color: var(--danger);
}

.transaction-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.transaction-account {
    font-size: 0.7rem;
    color: var(--text-muted);
    background: var(--border-light);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    margin-top: 4px;
    display: inline-block;
}

.transaction-delete {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    opacity: 0;
}

.transaction-item:hover .transaction-delete {
    opacity: 1;
}

.transaction-delete:hover {
    background: var(--danger-bg);
    color: var(--danger);
}

/* ===== FAB Button ===== */
.fab {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    box-shadow: var(--shadow-xl), 0 0 0 4px rgba(99, 102, 241, 0.2);
    transition: var(--transition-base);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.fab:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: var(--shadow-xl), 0 0 0 8px rgba(99, 102, 241, 0.2);
}

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

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    padding: var(--spacing-lg);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9) translateY(20px);
    transition: var(--transition-slow);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--border-light);
}

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.75rem;
    color: var(--text-muted);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--danger-bg);
    color: var(--danger);
}

/* ===== Form ===== */
#transactionForm {
    padding: var(--spacing-xl);
}

.type-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.type-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--border);
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.type-btn:hover {
    border-color: var(--primary-light);
}

.type-btn.active[data-type="Receita"] {
    background: var(--success-bg);
    border-color: var(--success);
    color: var(--success);
}

.type-btn.active[data-type="Despesa"] {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

.type-icon {
    font-size: 1.25rem;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.btn-submit {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: var(--transition-base);
    margin-top: var(--spacing-xl);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-icon {
    font-size: 1.25rem;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.transaction-item {
    animation: fadeIn 0.3s ease;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .main-content {
        padding: var(--spacing-md);
        padding-bottom: 120px;
    }

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

    .card {
        padding: var(--spacing-lg);
    }

    .card-icon {
        width: 56px;
        height: 56px;
        font-size: 2rem;
    }

    .card-value {
        font-size: 1.5rem;
    }

    .fab {
        bottom: 90px;
        right: 50%;
        transform: translateX(50%);
        width: 60px;
        height: 60px;
        font-size: 1.75rem;
        z-index: 1100;
    }

    .fab:hover {
        transform: translateX(50%) scale(1.05);
    }

    .modal {
        margin: 0;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        max-height: 95vh;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
    }

    .modal-overlay.active .modal {
        transform: translateY(0);
    }

    .modal-overlay .modal {
        transform: translateY(100%);
    }

    .type-selector {
        grid-template-columns: 1fr 1fr;
    }

    .transaction-delete {
        opacity: 1;
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-md);
    }

    .logo h1 {
        font-size: 1.25rem;
    }

    .month-selector {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    #currentMonth {
        font-size: 0.9rem;
        min-width: 120px;
    }

    .transaction-item {
        padding: var(--spacing-sm);
    }

    .transaction-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .card-value {
        font-size: 1.35rem;
    }

    .section-title {
        font-size: 1.1rem;
    }
}

/* ===== Bottom Navigation (Mobile) ===== */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border-light);
    padding: var(--spacing-sm) var(--spacing-md);
    padding-bottom: calc(var(--spacing-sm) + env(safe-area-inset-bottom, 0));
    z-index: 1000;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
}

@media (max-width: 768px) {
    .bottom-nav {
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    transition: var(--transition-fast);
    border-radius: var(--radius-lg);
    min-width: 60px;
    -webkit-tap-highlight-color: transparent;
}

.nav-item:active {
    transform: scale(0.9);
}

.nav-item.active {
    color: var(--primary);
}

.nav-item.active .nav-icon {
    transform: scale(1.1);
}

.nav-icon {
    font-size: 1.5rem;
    transition: var(--transition-fast);
}

.nav-label {
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.fab-placeholder {
    width: 60px;
    visibility: hidden;
}

/* ===== iOS Safe Areas ===== */
@supports (padding: max(0px)) {
    .header {
        padding-top: max(var(--spacing-lg), env(safe-area-inset-top));
    }

    .main-content {
        padding-left: max(var(--spacing-md), env(safe-area-inset-left));
        padding-right: max(var(--spacing-md), env(safe-area-inset-right));
    }

    .bottom-nav {
        padding-bottom: max(var(--spacing-sm), env(safe-area-inset-bottom));
    }
}

/* ===== Touch Optimizations ===== */
@media (pointer: coarse) {
    .month-btn {
        width: 44px;
        height: 44px;
    }

    .type-btn {
        min-height: 56px;
    }

    .form-group input,
    .form-group select {
        min-height: 50px;
        font-size: 16px;
        /* Prevents iOS zoom */
    }

    .btn-submit {
        min-height: 56px;
    }

    .transaction-item {
        min-height: 72px;
    }

    .transaction-delete {
        min-width: 44px;
        min-height: 44px;
    }

    /* Disable hover effects on touch devices */
    .card:hover {
        transform: none;
    }

    .transaction-item:hover {
        transform: none;
    }
}

/* ===== Pull to Refresh Indicator ===== */
.pull-to-refresh {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    font-weight: 500;
    transform: translateY(-100%);
    transition: transform 0.3s ease;
    z-index: 9999;
}

.pull-to-refresh.visible {
    transform: translateY(0);
}

.pull-to-refresh .spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 10px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Swipe to Delete ===== */
.transaction-item.swiping {
    transition: none;
}

.transaction-item .delete-bg {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 80px;
    background: var(--danger);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    border-radius: var(--radius-lg);
    opacity: 0;
    transform: translateX(100%);
    transition: opacity 0.2s ease;
}

.transaction-item.swiped .delete-bg {
    opacity: 1;
    transform: translateX(0);
}

/* ===== Landscape Mobile ===== */
@media (max-height: 500px) and (orientation: landscape) {
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .dashboard {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-sm);
    }

    .card {
        padding: var(--spacing-md);
    }

    .card-icon {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .card-value {
        font-size: 1.25rem;
    }

    .bottom-nav {
        display: none;
    }

    .fab {
        bottom: 20px;
        right: 20px;
        transform: none;
    }
}

/* ===== Install App Banner ===== */
.install-banner {
    position: fixed;
    bottom: 80px;
    left: var(--spacing-md);
    right: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    display: none;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-xl);
    z-index: 1050;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

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

.install-banner.show {
    display: flex;
}

.install-banner-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.install-banner-icon {
    font-size: 2rem;
}

.install-banner-text h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.install-banner-text p {
    font-size: 0.75rem;
    opacity: 0.9;
}

.install-banner-btn {
    background: white;
    color: var(--primary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    white-space: nowrap;
}

.install-banner-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: var(--spacing-sm);
}

/* ===== Dark Mode (Follows System) ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0F172A;
        --bg-secondary: #1E293B;
        --bg-card: #1E293B;

        --text-primary: #F1F5F9;
        --text-secondary: #94A3B8;
        --text-muted: #64748B;

        --border: #334155;
        --border-light: #1E293B;

        --success-bg: rgba(16, 185, 129, 0.15);
        --danger-bg: rgba(239, 68, 68, 0.15);
    }

    body {
        background: linear-gradient(135deg, var(--bg-primary) 0%, #1E1B4B 100%);
    }

    .card-balance .card-icon {
        background: rgba(99, 102, 241, 0.15);
    }

    .bottom-nav {
        background: var(--bg-secondary);
        border-top-color: var(--border);
    }

    .modal {
        background: var(--bg-secondary);
    }
}

/* ===== Skeleton Loading ===== */
.skeleton {
    background: linear-gradient(90deg, var(--border-light) 25%, var(--bg-primary) 50%, var(--border-light) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* Action Buttons in Transaction Item */
.transaction-actions {
    display: flex;
    gap: 8px;
    margin-left: 10px;
}

.action-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    padding: 5px;
    border-radius: 50%;
    transition: background 0.2s;
    opacity: 0.7;
}

.action-btn:hover {
    background-color: var(--bg-body);
    opacity: 1;
}

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

.btn-history {
    color: var(--text-muted);
}

.btn-delete {
    color: var(--danger);
}

/* Histórico List */
.historico-list {
    max-height: 60vh;
    overflow-y: auto;
    padding: 10px 0;
}

.historico-item {
    background: var(--bg-body);
    padding: 12px;
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    font-size: 0.9rem;
    border-left: 3px solid var(--primary);
}

.historico-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.historico-change {
    margin-bottom: 2px;
}

/* ===== Haptic Feedback Visual ===== */
.haptic-pulse {
    animation: hapticPulse 0.15s ease;
}

@keyframes hapticPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(0.97);
    }
}