/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Remove number input spinners */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type=number] {
    -moz-appearance: textfield;
}

:root {
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI',
                    'Helvetica Neue', Arial, sans-serif;

    /* Primary Colors */
    --color-primary: #0066CC;
    --color-primary-hover: #0052A3;
    --color-primary-light: #E6F2FF;

    /* Status Colors (WCAG AA Compliant) */
    --color-success: #067D62;
    --color-success-bg: #D1F4E8;
    --color-danger: #C41E3A;
    --color-danger-bg: #FFE8EC;
    --color-warning: #B25000;
    --color-warning-bg: #FFF3E0;

    /* Neutral Colors */
    --color-text-primary: #1A1A1A;
    --color-text-secondary: #4A4A4A;
    --color-text-tertiary: #737373;
    --color-border: #D1D5DB;
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F9FAFB;
    --color-bg-tertiary: #F3F4F6;

    /* Category Colors (Colorblind-Friendly) */
    --color-bonds: #0066CC;
    --color-can-equity: #C41E3A;
    --color-us-equity: #B25000;
    --color-eafe: #067D62;
    --color-em: #7C3AED;

    /* Spacing System */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;

    /* Elevation (Shadows) */
    --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);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    line-height: 1.5;
    font-size: 15px;
}

/* Focus Indicators for Accessibility */
*:focus {
    outline: none;
}

*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-4);
}

/* Header */
header {
    background: var(--color-bg-primary);
    padding: var(--space-5) var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-4);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.header-left {
    display: flex;
    align-items: baseline;
    gap: var(--space-5);
    flex-wrap: wrap;
}

header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0;
    letter-spacing: -0.02em;
}

.total-portfolio-header {
    font-size: 1rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.total-portfolio-header strong {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.total-portfolio-header span {
    color: var(--color-primary);
    font-size: 1.25rem;
    font-weight: 700;
    margin-left: var(--space-2);
}

.header-actions {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: var(--space-3) var(--space-5);
    min-height: 44px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

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

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

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

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

.btn-danger:hover {
    background: #A01528;
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    min-height: 36px;
    font-size: 0.875rem;
}

/* Ensure 44px touch targets on mobile */
@media (max-width: 768px) {
    .btn-sm {
        min-height: 44px;
        padding: var(--space-3) var(--space-4);
    }
}

/* Summary Section */
.summary-section {
    background: var(--color-bg-primary);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--space-4);
}

.summary-section h2 {
    margin-bottom: var(--space-5);
    color: var(--color-text-primary);
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.category-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.category-card {
    padding: var(--space-5);
    border-radius: var(--radius-md);
    border-left: 4px solid;
    box-shadow: var(--shadow-sm);
    background: var(--color-bg-primary);
}

.category-card h3 {
    font-size: 1rem;
    margin-bottom: var(--space-2);
    font-weight: 600;
}

.category-stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    font-size: 0.875rem;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-3);
}

.stat-row span {
    color: var(--color-text-secondary);
    font-weight: 500;
}

.stat-row strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.surplus {
    background: var(--color-success-bg);
    border-left-color: var(--color-success);
}

.deficit {
    background: var(--color-danger-bg);
    border-left-color: var(--color-danger);
}

.balanced {
    background: var(--color-primary-light);
    border-left-color: var(--color-primary);
}

.total-portfolio {
    font-size: 1rem;
    padding: var(--space-4);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
    border: 2px solid var(--color-border);
}

.total-portfolio strong {
    color: var(--color-text-secondary);
    font-weight: 500;
    margin-right: var(--space-2);
}

.total-portfolio span {
    color: var(--color-primary);
    font-size: 1.25rem;
    font-weight: 700;
}

/* Asset Summary Inline Editing */
.category-header {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    margin-bottom: var(--space-4);
}

.category-name-input {
    flex: 1;
    min-width: 0;
    max-width: 100%;
    padding: var(--space-2) var(--space-3);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    background: transparent;
    color: var(--color-text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
}

.category-name-input:hover {
    border-color: var(--color-border);
    background: var(--color-bg-primary);
}

.category-name-input:focus {
    border-color: var(--color-primary);
    background: var(--color-bg-primary);
}

.target-input {
    width: 65px;
    padding: var(--space-2) var(--space-2);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    text-align: right;
    background: transparent;
    line-height: 1.5;
}

.target-input:hover {
    border-color: var(--color-border);
    background: var(--color-bg-primary);
}

.target-input:focus {
    border-color: var(--color-primary);
    background: var(--color-bg-primary);
}

.btn-delete-small {
    background: var(--color-danger);
    color: white;
    border: none;
    padding: var(--space-2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.125rem;
    line-height: 1;
    width: 32px;
    height: 32px;
    min-width: 32px;
    min-height: 32px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-delete-small:hover {
    background: #A01528;
}

/* Ensure delete buttons meet touch target on mobile */
@media (max-width: 768px) {
    .btn-delete-small {
        width: 44px;
        height: 44px;
        min-width: 44px;
        min-height: 44px;
    }
}

.category-validation-banner {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.category-validation-banner.error {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

.category-validation-banner.success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

#addAssetBtn {
    margin-left: auto;
}

/* Holdings Section */
.holdings-section {
    background: var(--color-bg-primary);
    padding: var(--space-6);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-3);
    border-bottom: 2px solid var(--color-bg-tertiary);
    gap: var(--space-3);
}

.section-header h2 {
    color: var(--color-text-primary);
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
    letter-spacing: -0.01em;
}

.holdings-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.holding-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    background: var(--color-bg-secondary);
}

.holding-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-3);
}

.ticker-display {
    padding: var(--space-3) var(--space-3);
    min-height: 44px;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    background: var(--color-bg-tertiary);
    text-transform: uppercase;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 44px;
    padding-top: 0;
    padding-bottom: 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.form-group label {
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.price-hint {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    font-weight: normal;
    margin-left: var(--space-2);
}

.form-group input,
.form-group select {
    padding: var(--space-3) var(--space-3);
    min-height: 44px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-family: inherit;
    background: transparent;
    line-height: 1.5;
}

.form-group input:hover,
.form-group select:hover {
    border-color: var(--color-border);
    background: var(--color-bg-primary);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    background: var(--color-bg-primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group input[readonly] {
    cursor: default;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.form-group input[readonly]:hover {
    border-color: transparent;
    background: transparent;
}

.form-group input[readonly][style*="background"]:hover {
    border: 1px solid var(--color-border);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    overflow-y: auto;
    padding: var(--space-4);
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 10vh;
}

.modal-content {
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5) var(--space-6);
    border-bottom: 2px solid var(--color-bg-tertiary);
}

.modal-header h2 {
    color: var(--color-text-primary);
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.75rem;
    cursor: pointer;
    color: var(--color-text-tertiary);
    padding: 0;
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.close-btn:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.modal-body {
    padding: var(--space-6);
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 2px solid var(--color-bg-tertiary);
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
}

/* Settings */
.settings-section {
    margin-bottom: var(--space-5);
}

.settings-section h3 {
    margin-bottom: var(--space-3);
    color: var(--color-text-secondary);
    font-size: 1rem;
    font-weight: 600;
}

.category-editor-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    align-items: end;
}

.validation-message {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-xs);
    border-radius: 3px;
    font-size: 0.75rem;
}

.validation-message.error {
    background: var(--color-deficit);
    color: #721c24;
}

.validation-message.success {
    background: var(--color-surplus);
    color: #155724;
}

/* Balanced Fund Allocations */
.allocations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
    gap: var(--spacing-xs);
    padding: var(--spacing-xs);
    background: white;
    border-radius: 3px;
    border: 1px solid var(--color-border);
}

/* Holdings Table */
.table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--space-4);
}

.holdings-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.875rem;
    min-width: 600px;
    background: var(--color-bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.holdings-table th,
.holdings-table td {
    padding: var(--space-3) var(--space-3);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.holdings-table th {
    background: var(--color-bg-tertiary);
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    position: sticky;
    top: 0;
    z-index: 10;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.holdings-table th.category-col {
    text-align: center;
    min-width: 80px;
}

.holdings-table td.category-col {
    text-align: center;
    padding: var(--space-2);
}

.holdings-table input {
    width: 100%;
    padding: var(--space-2) var(--space-2);
    min-height: 40px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-family: inherit;
    background: transparent;
    line-height: 1.5;
}

.holdings-table input:hover {
    border-color: var(--color-border);
    background: var(--color-bg-primary);
}

.holdings-table input:focus {
    border-color: var(--color-primary);
    background: var(--color-bg-primary);
}

.holdings-table .ticker-input {
    min-width: 80px;
    font-weight: 600;
    text-transform: uppercase;
}

.holdings-table .price-input {
    min-width: 70px;
    text-align: right;
}

.holdings-table .contribution-input {
    min-width: 80px;
    text-align: right;
}

.holdings-table .allocation-input {
    text-align: right;
}

.holdings-table td.validation-col {
    text-align: center;
    font-size: 0.8125rem;
    font-weight: 600;
    width: 50px;
    padding: var(--space-3);
}

.holdings-table td.validation-col.valid {
    color: var(--color-success);
    background: var(--color-success-bg);
}

.holdings-table td.validation-col.invalid {
    color: var(--color-danger);
    background: var(--color-danger-bg);
}

.holdings-table tbody tr {
    transition: background-color 0.15s ease;
}

.holdings-table tbody tr:hover {
    background: var(--color-bg-secondary);
}

/* Account cards are no longer collapsible - simplified layout */

/* Responsive Breakpoints */
@media (max-width: 768px) {
    .container {
        padding: var(--space-3);
    }

    header {
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-4);
        gap: var(--space-3);
    }

    .header-left {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
    }

    header h1 {
        font-size: 1.5rem;
    }

    .total-portfolio-header {
        font-size: 0.9375rem;
    }

    .total-portfolio-header span {
        font-size: 1.125rem;
    }

    .summary-section {
        padding: var(--space-4);
        margin-bottom: var(--space-3);
    }

    .category-cards {
        gap: var(--space-3);
    }

    .table-wrapper {
        margin: 0 calc(-1 * var(--space-3));
        border-radius: 0;
    }

    .holdings-table {
        font-size: 0.8125rem;
    }

    .holdings-table th,
    .holdings-table td {
        padding: var(--space-2) var(--space-2);
    }

    .holdings-table .allocation-input {
        font-size: 0.75rem;
    }

    .holdings-table .ticker-input {
        min-width: 70px;
    }

    .holdings-table .price-input {
        min-width: 60px;
    }

    .holdings-table input {
        min-height: 44px;
        padding: var(--space-3) var(--space-2);
    }

    .modal.active {
        padding-top: var(--space-4);
        align-items: center;
    }

    .modal-body {
        padding: var(--space-4);
    }

    .modal-footer {
        flex-direction: column-reverse;
        padding: var(--space-4);
    }

    .modal-footer .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .header-actions {
        width: 100%;
    }

    .header-actions .btn {
        flex: 1;
        min-width: 0;
    }

    .category-cards {
        grid-template-columns: 1fr;
    }

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

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

    .category-editor-row {
        grid-template-columns: 1fr;
    }

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

@media (min-width: 481px) and (max-width: 767px) {
    .category-cards {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* Utility Classes */
.hidden {
    display: none !important;
}

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

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: var(--space-8) var(--space-4);
    color: var(--color-text-secondary);
}

.empty-state p {
    margin: 0;
    font-size: 1rem;
}

.empty-state-hint {
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
    margin-top: var(--space-2);
}

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }