/* Balance Sheet Optimization - Web UI Styles */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --success-color: #16a34a;
    --warning-color: #ca8a04;
    --danger-color: #dc2626;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
    --gray-900: #111827;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
}

/* Navigation */
.navbar {
    background-color: var(--gray-900);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand a {
    color: white;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 600;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--gray-300);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: white;
    background-color: rgba(255, 255, 255, 0.1);
}

/* Main Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* Alerts */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.alert-warning {
    background-color: #fef3c7;
    border: 1px solid #f59e0b;
    color: #92400e;
}

.alert-success {
    background-color: #d1fae5;
    border: 1px solid #10b981;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    border: 1px solid #ef4444;
    color: #991b1b;
}

.alert-info {
    background-color: #dbeafe;
    border: 1px solid #3b82f6;
    color: #1e40af;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

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

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

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

.btn-secondary {
    background-color: var(--gray-200);
    color: var(--gray-800);
}

.btn-secondary:hover {
    background-color: var(--gray-300);
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Tables */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

th {
    background-color: var(--gray-100);
    font-weight: 600;
    color: var(--gray-600);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tr:hover {
    background-color: var(--gray-100);
}

/* Grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

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

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

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

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Stats */
.stat-card {
    text-align: center;
    padding: 1.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Account Cards */
.account-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
}

.account-info h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.account-info p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

.account-actions {
    display: flex;
    gap: 0.5rem;
}

/* Transaction List */
.transaction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-200);
}

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

.transaction-name {
    font-weight: 500;
}

.transaction-date {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.transaction-amount {
    font-weight: 600;
}

.transaction-amount.positive {
    color: var(--success-color);
}

.transaction-amount.negative {
    color: var(--danger-color);
}

/* Recurring Patterns */
.pattern-card {
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
}

.pattern-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.pattern-name {
    font-weight: 600;
}

.pattern-frequency {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    background-color: var(--primary-color);
    color: white;
}

.pattern-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
    font-size: 1rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Loading */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.spinner {
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Link Page */
.link-container {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.link-container h1 {
    margin-bottom: 1rem;
}

.link-container p {
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.institution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.institution-card {
    border: 2px solid var(--gray-200);
    border-radius: 0.5rem;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.institution-card:hover {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
}

.institution-card.selected {
    border-color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.1);
}

.institution-name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.institution-desc {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Badge */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Flex utilities */
.flex {
    display: flex;
}

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

.gap-1 {
    gap: 0.5rem;
}

.gap-2 {
    gap: 1rem;
}

/* Text utilities */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--gray-600);
}

.text-success {
    color: var(--success-color);
}

.text-danger {
    color: var(--danger-color);
}

/* Margin utilities */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* Accounts Summary Table */
.accounts-summary-table {
    width: 100%;
    border-collapse: collapse;
}

.accounts-summary-table th,
.accounts-summary-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.accounts-summary-table th {
    background-color: var(--gray-100);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-600);
}

.accounts-summary-table td {
    vertical-align: middle;
}

.accounts-summary-table .text-right {
    text-align: right;
}

.accounts-summary-table .account-cell {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.accounts-summary-table .bank-logo {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: contain;
    flex-shrink: 0;
    background: white;
    padding: 4px;
    border: 1px solid var(--gray-200);
}

.accounts-summary-table .bank-logo-placeholder {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--gray-300);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 600;
    color: white;
}

.accounts-summary-table .account-info-text {
    display: flex;
    flex-direction: column;
}

.accounts-summary-table .account-name {
    font-weight: 500;
    margin-bottom: 0.125rem;
}

.accounts-summary-table .account-type-label {
    font-size: 0.75rem;
}

.accounts-summary-table .amount {
    font-weight: 500;
    font-size: 0.9375rem;
}

.accounts-summary-table .amount.positive {
    color: var(--success-color);
}

.accounts-summary-table .amount.negative {
    color: var(--danger-color);
}

.accounts-summary-table .expense-count,
.accounts-summary-table .transfer-date {
    font-size: 0.75rem;
    color: var(--gray-600);
    margin-top: 0.125rem;
}

.accounts-summary-table .totals-row {
    background-color: var(--gray-100);
}

.accounts-summary-table .totals-row td {
    border-bottom: none;
}

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

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

/* Expandable expense details */
.expandable-cell {
    cursor: pointer;
}

.expandable-cell:hover {
    opacity: 0.8;
}

.expense-date {
    font-size: 0.75rem;
    color: var(--gray-600);
    margin-top: 0.125rem;
}

.expand-icon {
    font-size: 0.625rem;
    margin-left: 0.25rem;
    transition: transform 0.2s;
}

.expense-details {
    margin-top: 0.5rem;
    padding: 0.5rem;
    background: var(--gray-100);
    border-radius: 0.25rem;
    text-align: left;
}

.expense-detail-item {
    display: flex;
    justify-content: space-between;
    padding: 0.25rem 0;
    font-size: 0.8125rem;
    border-bottom: 1px solid var(--gray-200);
}

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

.expense-name {
    color: var(--gray-800);
    font-weight: 500;
}

.expense-info {
    color: var(--gray-600);
    font-size: 0.75rem;
}

/* Expense Popup */
.expense-popup {
    position: absolute;
    z-index: 1000;
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15), 0 4px 10px rgba(0, 0, 0, 0.1);
    min-width: 260px;
    max-width: 320px;
    border: 1px solid var(--gray-200);
    animation: popupFadeIn 0.15s ease-out;
}

@keyframes popupFadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.expense-popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-100);
    border-radius: 0.5rem 0.5rem 0 0;
}

.expense-popup-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--gray-800);
}

.expense-popup-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--gray-600);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.15s;
}

.expense-popup-close:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.expense-popup-content {
    padding: 0.5rem 0;
    max-height: 300px;
    overflow-y: auto;
}

.expense-popup-item {
    padding: 0.625rem 1rem;
    border-bottom: 1px solid var(--gray-100);
}

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

.expense-popup-name {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.expense-popup-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
}

.expense-popup-amount {
    color: var(--danger-color);
    font-weight: 500;
}

.expense-popup-date {
    color: var(--gray-600);
}

/* Clickable expense cell */
.expense-cell-clickable {
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    margin: -0.25rem -0.5rem;
    border-radius: 0.375rem;
    transition: background-color 0.15s;
}

.expense-cell-clickable:hover {
    background-color: var(--gray-100);
}