:root {
    --primary-color: #10B981;
    --primary-hover: #059669;
    --text-dark: #111827;
    --text-medium: #374151;
    --text-light: #6B7280;
    --bg-light: #F3F4F6;
    --bg-gradient-start: #FFFFFF;
    --bg-gradient-end: #ECFDF5;
    /* Very light green tint */
    --white: #FFFFFF;
    --border-color: #E5E7EB;
    --shadow-sm: 0 1px 2px 0 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);
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 1rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: var(--text-dark);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    display: flex;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

/* Left Side: Info */
.info-section {
    flex: 1;
    max-width: 500px;
}

.logo-box {
    width: 64px;
    height: 64px;
    background-color: #ECFDF5;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
}

.info-content h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.description {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--text-light);
    margin-bottom: 2.5rem;
}

.features {
    list-style: none;
}

.features li {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    font-weight: 500;
    color: var(--text-medium);
}

.bullet {
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
    margin-right: 1rem;
}

/* Right Side: Auth Card */
.auth-section {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.auth-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 450px;
    border: 1px solid var(--bg-light);
}

/* Toggle Switch */
.auth-toggle {
    background-color: #F3F4F6;
    padding: 0.25rem;
    border-radius: var(--radius-lg);
    display: flex;
    margin-bottom: 2rem;
}

.toggle-btn {
    flex: 1;
    padding: 0.75rem;
    border: none;
    background: transparent;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.2s;
}

.toggle-btn.active {
    background-color: var(--white);
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

/* Forms */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.auth-form.hidden {
    display: none;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    color: var(--text-dark);
    transition: border-color 0.2s;
    font-family: inherit;
}

/* Override padding for inputs without icons */
#form-add-transaction input[type="number"],
#form-add-transaction input[type="date"],
#form-add-transaction input[type="text"],
#form-add-transaction select {
    padding: 0.75rem 1rem;
}

/* Special case for amount input with currency symbol */
#form-add-transaction #t-amount {
    padding-left: 2rem;
}
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.help-text {
    font-size: 0.75rem;
    color: var(--text-light);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.875rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 0.5rem;
}

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

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 0.5rem 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.divider span {
    padding: 0 1rem;
    color: var(--text-light);
    font-size: 0.875rem;
}

.btn-google {
    background-color: white;
    border: 1px solid var(--border-color);
    color: var(--text-dark);
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transition: background-color 0.2s;
}

.btn-google:hover {
    background-color: #F9FAFB;
}

.terms-text {
    font-size: 0.75rem;
    color: var(--text-light);
    text-align: center;
    line-height: 1.5;
    margin-top: 0.5rem;
}

/* Responsive */
@media (max-width: 900px) {
    .container {
        flex-direction: column;
        padding: 1rem;
        gap: 3rem;
    }

    .info-section {
        text-align: center;
        max-width: 100%;
    }

    .logo-box {
        margin: 0 auto 2rem;
    }

    .features li {
        justify-content: center;
    }

    .auth-section {
        justify-content: center;
        width: 100%;
    }
}

/* --- App Layout & Dashboard Styles --- */

.app-layout {
    display: flex;
    min-height: 100vh;
    width: 100%;
    background-color: #F9FAFB;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--white);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
}

.sidebar-header {
    margin-bottom: 2.5rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-light);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    color: var(--text-medium);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-item:hover {
    background-color: var(--bg-light);
    color: var(--text-dark);
}

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

.sidebar-footer {
    margin-top: auto;
}

.signout-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    width: 100%;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: var(--radius-lg);
    color: var(--text-dark);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.signout-btn:hover {
    background-color: var(--bg-light);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 2rem;
    max-width: 1200px;
}

.view-section {
    display: none;
    animation: fadeIn 0.3s ease-out;
}

.view-section.active {
    display: block;
}

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

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

.view-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.view-header .header-text {
    flex: 1;
}

.view-header h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-light);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    margin-right: 0.5rem;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
}

.user-email {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.icon-box {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-box.success-light {
    background-color: #ECFDF5;
}

.icon-box.danger-light {
    background-color: #FEF2F2;
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-dark);
}

/* Charts */
.chart-section,
.chart-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.chart-section h3,
.chart-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.chart-container {
    height: 300px;
    width: 100%;
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

/* Transactions List */
.transactions-section {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
}

.btn-primary-sm {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.transaction-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--bg-light);
}

.transaction-item:last-child {
    border-bottom: none;
}

.t-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.t-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.t-details h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
}

.t-details p {
    font-size: 0.75rem;
    color: var(--text-light);
}

.t-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.t-category-tag {
    font-size: 0.75rem;
    color: var(--text-light);
    background-color: var(--bg-light);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-md);
}

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

.t-right {
    text-align: right;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.t-type-tag {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.t-amount {
    font-weight: 600;
    font-size: 0.95rem;
}

.t-amount.positive {
    color: var(--primary-color);
}

.t-amount.negative {
    color: var(--text-dark);
}


.t-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1rem;
}

.t-action-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    color: var(--text-light);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.t-action-btn:hover {
    background-color: var(--bg-light);
    color: var(--text-dark);
}

.text-center {
    text-align: center;
}

/* Summary Cards (Transactions Page) */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    position: relative;
}

.summary-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.summary-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.summary-value.positive {
    color: var(--primary-color);
}

.summary-value.negative {
    color: #EF4444;
}

.summary-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.summary-badge.success-badge {
    background-color: #ECFDF5;
    color: var(--primary-color);
}

.summary-badge.danger-badge {
    background-color: #FEF2F2;
    color: #EF4444;
}

/* Filters Section */
.filters-section {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.filters-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.filters-header svg {
    color: var(--text-light);
}

.filters-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
}

.filters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-dark);
}

.filter-group .input-wrapper {
    position: relative;
}

.filter-group .input-wrapper .search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    pointer-events: none;
}

.filter-group .input-wrapper .form-input {
    padding-left: 2.5rem;
}

/* Summary Section (Analytics Page) */
.summary-section {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-top: 2rem;
}

.summary-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.summary-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.summary-item-label {
    font-size: 0.875rem;
    color: var(--text-light);
    font-weight: 500;
}

.summary-item-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
}

.summary-item-value.positive {
    color: var(--primary-color);
}

/* Receipt Upload */
.receipt-upload {
    margin-top: 0.5rem;
}

.receipt-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 2rem;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-light);
    cursor: pointer;
    transition: all 0.2s;
}

.receipt-upload-label:hover {
    border-color: var(--primary-color);
    background-color: #ECFDF5;
}

.receipt-upload-label svg {
    color: var(--text-light);
}

.receipt-upload-label span {
    font-size: 0.875rem;
    color: var(--text-medium);
    font-weight: 500;
}

.receipt-input:focus + .receipt-upload-label {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Settings Styles */
.settings-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.settings-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.settings-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.bg-light {
    background-color: var(--bg-light);
}

.btn-outline {
    background: white;
    border: 1px solid var(--border-color);
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.form-select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    color: var(--text-dark);
    background-color: white;
}

.setting-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-top: 1px solid var(--bg-light);
    margin-top: 1rem;
}

.setting-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.toggle-checkbox {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-color);
}

.danger-zone {
    border-color: #FECACA;
    background-color: #FEF2F2;
}

.text-danger {
    color: #EF4444;
}

.text-danger-light {
    color: #B91C1C;
    font-size: 0.875rem;
}

.btn-danger {
    background-color: #EF4444;
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
}

.btn-danger:hover {
    background-color: #DC2626;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.2s;
}

.modal-overlay.hidden {
    display: none;
    opacity: 0;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 400px;
    text-align: center;
    transform: scale(1);
    transition: transform 0.2s;
}

.modal-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.modal-content p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.modal-actions button {
    flex: 1;
}

/* Add Transaction Modal */
.modal-lg {
    max-width: 500px;
    padding: 0;
    text-align: left;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 1.5rem 0.5rem;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-light);
    padding: 0.25rem;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.close-btn:hover {
    background-color: var(--bg-light);
}

.modal-subtitle {
    padding: 0 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

#form-add-transaction {
    padding: 0 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.transaction-type-toggle {
    display: flex;
    background-color: var(--bg-light);
    padding: 0.25rem;
    border-radius: var(--radius-lg);
    margin-bottom: 0.5rem;
}

.transaction-type-toggle input[type="radio"] {
    display: none;
}

.type-btn {
    flex: 1;
    text-align: center;
    padding: 0.625rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    color: var(--text-light);
    transition: all 0.2s;
}

#type-expense:checked+.type-btn {
    background-color: var(--white);
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

#type-income:checked+.type-btn {
    background-color: var(--white);
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
}

.currency-symbol {
    position: absolute;
    left: 1rem;
    color: var(--text-light);
    font-weight: 600;
}

.modal-footer {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.modal-footer button {
    flex: 1;
}