/* CSS Variables - Modern Professional Palette */
:root {
    /* Primary Colors */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;
    
    /* Success Colors */
    --color-success: #059669;
    --color-success-hover: #047857;
    --color-success-light: #d1fae5;
    
    /* Danger Colors */
    --color-danger: #dc2626;
    --color-danger-hover: #b91c1c;
    --color-danger-light: #fee2e2;
    
    /* Warning Colors */
    --color-warning: #ffc107;
    --color-warning-hover: #e0a800;
    --color-warning-light: #fff3cd;
    
    /* Info Colors */
    --color-info: #2563eb;
    --color-info-hover: #1d4ed8;
    --color-info-light: #dbeafe;
    
    /* Neutral Colors */
    --color-secondary: #64748b;
    --color-secondary-hover: #475569;
    --color-light: #f8fafc;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    /* Border and Shadow */
    --border-radius: 8px;
    --border-radius-sm: 4px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* Basic reset and common styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Inter", system-ui, sans-serif;
    line-height: 1.6;
    color: var(--color-gray-800);
    background: var(--bg-secondary);
    font-size: 16px;
    font-weight: 400;
    letter-spacing: -0.01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Typography Hierarchy */
h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin: 0 0 1.5rem 0;
    letter-spacing: -0.02em;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 0 0 1rem 0;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin: 0 0 0.75rem 0;
}

p {
    margin: 0 0 1rem 0;
    color: var(--color-gray-700);
}

small {
    font-size: 0.875rem;
    color: var(--color-gray-500);
}

/* Navigation */
nav {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--color-gray-200);
    padding: 0;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 2rem;
}

nav a {
    color: var(--color-gray-600);
    text-decoration: none;
    padding: 1rem 1.5rem;
    font-weight: 500;
    font-size: 0.95rem;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
    position: relative;
}

nav a:hover {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

nav a.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    background: var(--color-primary-light);
}

/* Expenditure actions */
.expenditure-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-shrink: 0;
}

.expenditure-actions form {
    display: inline;
    margin: 0;
}


/* Review actions */
.review-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-top: 1rem;
}


/* Edit form */
.edit-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.edit-form-grid .full-width {
    grid-column: 1 / -1;
}

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

.form-group label {
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--color-gray-600);
    margin-bottom: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.5rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    background: var(--bg-primary);
    color: var(--color-gray-800);
    transition: all var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px var(--color-primary-light);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: var(--color-gray-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 60px;
}

.form-group input[type="file"] {
    padding: 0.4rem;
    border: 1px dashed var(--color-gray-400);
    background: var(--color-gray-50);
    cursor: pointer;
    font-size: 0.85rem;
}

.form-group input[type="file"]:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

/* Money input error states */
.form-group input.error {
    border-color: var(--color-danger) !important;
    background: var(--color-danger-light);
}

.form-group input.error:focus {
    border-color: var(--color-danger) !important;
    box-shadow: 0 0 0 2px var(--color-danger-light);
}

.money-error {
    color: var(--color-danger);
    font-size: 0.8rem;
    margin-top: 0.25rem;
    font-weight: 500;
}

/* Checkbox label alignment */
.form-group.checkbox-group {
    flex: none !important;
}

.form-group label input[type="checkbox"] {
    margin-right: 0.5rem;
}

.form-group label {
    display: inline-flex;
    align-items: center;
    margin-bottom: 0;
    white-space: nowrap;
}

/* Balance display alignment */
.balance-display {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.cycle-total {
    color: var(--color-gray-600);
    font-size: 0.9rem;
}

/* Balance edit alignment */
.balance-edit {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.balance-edit input {
    width: 100%;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    line-height: 1.2;
    height: 1.8rem;
}

.edit-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

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

.balance-group {
    padding: 0.5rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-normal);
    position: relative;
}

.balance-group:hover {
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.total-balance {
    grid-column: 1 / -1;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-success);
    padding: 0.5rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
}

/* Account colors and indicators */
.balance-group.current-cash,
.account-row.current-cash {
    border-left: 4px solid var(--color-success);
}

.balance-group.expected-income,
.account-row.expected-income {
    border-left: 4px solid var(--color-primary);
}

.balance-group.credit-card,
.account-row.credit-card {
    border-left: 4px solid var(--color-warning);
}

.balance-group.expected-expense,
.account-row.expected-expense {
    border-left: 4px solid var(--color-danger);
}


.total-balance.negative,
.negative {
    color: #dc3545;
}

/* Account list and forms */
.accounts-list {
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    overflow: hidden;
}

.account-row {
    padding: 0.05rem 0.25rem;
    border-bottom: 1px solid var(--color-gray-200);
    line-height: 1;
    transition: all var(--transition-fast);
    position: relative;
}

.account-row:hover {
    background: var(--color-gray-50);
}

.account-row:last-child {
    border-bottom: none;
}

.account-row.new-account {
    background: var(--color-light);
    border-left: 4px solid var(--color-gray-400);
}

.account-row.new-account form {
    width: 100%;
    padding: 0.5rem;
    margin: 0;
}

.account-row.new-account:hover {
    background: var(--color-primary-light);
}

/* Account row layout: use CSS grid for neat columns */
.account-view,
.account-edit-form {
    width: 100%;
    display: grid;
    grid-template-columns: 2fr 1fr auto auto;
    align-items: center;
    padding: 0.5rem;
    border-bottom: 1px solid #eee;
    gap: 0.5rem;
}

.account-view:last-child,
.account-edit-form:last-child {
    border-bottom: none;
}


.form-fields {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-fields .form-group {
    flex: 1;
    margin-bottom: 0;
}

.form-fields .form-group input,
.form-fields .form-group select {
    width: 100%;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    line-height: 1.2;
    height: 1.8rem;
}

.form-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0;
    justify-content: flex-start;
    align-items: center;
}

/* Inline account edit inputs to fill grid columns */
.account-edit-form input[type="text"],
.account-edit-form input[type="number"] {
    width: 100%;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    line-height: 1.2;
    height: 1.8rem;
}

/* Unified Button System */
button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem 0.5rem;
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1.2;
    text-decoration: none;
    transition: all var(--transition-fast);
    outline: none;
    min-height: 1.75rem;
}

/* Primary Buttons */
button[type="submit"]:not([class]),
button.update,
button.primary {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

button[type="submit"]:not([class]):hover,
button.update:hover,
button.primary:hover {
    background: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

/* Danger/Delete Buttons */
button.delete,
button.delete-btn,
button.reject-btn {
    background: var(--color-danger);
    color: white;
    border-color: var(--color-danger);
}

button.delete:hover,
button.delete-btn:hover,
button.reject-btn:hover {
    background: var(--color-danger-hover);
    border-color: var(--color-danger-hover);
}

/* Success/Approve Buttons */
button.approve-btn {
    background: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

button.approve-btn:hover {
    background: var(--color-success-hover);
    border-color: var(--color-success-hover);
}

/* Secondary/Cancel Buttons */
button.cancel,
button.secondary {
    background: var(--color-secondary);
    color: white;
    border-color: var(--color-secondary);
}

button.cancel:hover,
button.secondary:hover {
    background: var(--color-secondary-hover);
    border-color: var(--color-secondary-hover);
}

/* Edit/Info Buttons */
button.edit-btn {
    background: var(--color-info);
    color: white;
    border-color: var(--color-info);
}

button.edit-btn:hover {
    background: var(--color-info-hover);
    border-color: var(--color-info-hover);
}

/* Disabled State */
button:disabled {
    background: var(--color-gray-300) !important;
    color: var(--color-gray-500) !important;
    border-color: var(--color-gray-300) !important;
    cursor: not-allowed !important;
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 1.5rem;
    }
    
    .balances {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 1rem;
    }
    
    .form-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    nav {
        margin-bottom: 1rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    nav a {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .balances {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .balance-group {
        padding: 1rem;
    }
    
    .total-balance {
        font-size: 1.5rem;
        padding: 1.5rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .add-expenditure-form {
        padding: 1.5rem;
    }
    
    .expenditure-detail {
        padding: 1rem;
    }
    
    .main-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .expenditure-actions {
        margin-left: 0;
        margin-top: 0.5rem;
    }
    
    .review-item {
        flex-direction: column;
        gap: 1rem;
    }
    
    .review-details {
        flex-direction: column;
        gap: 1rem;
    }
    
    .review-image {
        width: 100%;
        max-width: 300px;
    }
    
    .account-view,
    .account-edit-form {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        padding: 1rem;
    }
    
    .form-fields {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .form-actions {
        justify-content: flex-start;
        margin-top: 0.75rem;
    }
    
    .login-container form {
        min-width: auto;
        width: 100%;
        max-width: 400px;
        padding: 2rem;
    }
    
    .login-container h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.75rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .balance-group {
        padding: 0.75rem;
    }
    
    .balance-amount {
        font-size: 1.25rem !important;
    }
    
    .total-balance {
        font-size: 1.25rem;
        padding: 1rem;
    }
    
    .add-expenditure-form {
        padding: 1rem;
    }
    
    button {
        min-height: 2.25rem;
        padding: 0.5rem 0.75rem;
        font-size: 0.875rem;
    }
    
    .login-container {
        padding: 1rem;
    }
    
    .login-container h1 {
        font-size: 2rem;
        margin-bottom: 1.5rem;
    }
    
    .login-container form {
        padding: 1.5rem;
    }
}

/* Review page styles */
.review-list {
    background: var(--bg-primary);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    overflow: hidden;
}

.review-item:last-child {
    margin-bottom: 0;
}

.review-item {
    background: var(--bg-primary);
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: all var(--transition-normal);
    margin-bottom: 1rem;
}

.review-item:hover {
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.review-details {
    flex: 1;
    display: flex;
    gap: 1rem;
}

.review-image {
    width: 200px;
    flex-shrink: 0;
}

.review-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-normal);
    border: 2px solid var(--color-gray-200);
}

.review-image img:hover {
    transform: scale(1.05);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.review-info {
    flex: 1;
}

.review-info .amount {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.75rem;
}

.review-info .datetime,
.review-info .vendor,
.review-info .title,
.review-info .payment-method,
.review-info .message {
    font-size: 0.9rem;
    color: var(--color-gray-600);
    margin-bottom: 0.5rem;
    padding: 0.25rem 0;
}

.review-info .title {
    font-weight: 500;
    color: var(--color-gray-700);
}

.review-info .vendor {
    color: var(--color-primary);
    font-weight: 500;
}

.review-info .payment-method {
    background: var(--color-gray-50);
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    border-left: 3px solid var(--color-info);
}

.review-form {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 200px;
}

.review-form select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
    background: white;
}

.no-items {
    padding: 2rem;
    text-align: center;
    color: #666;
}

/* Add modal for image zoom */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    padding: 2rem;
    cursor: pointer;
}

.modal img {
    max-width: 100%;
    max-height: 100%;
    margin: auto;
    display: block;
    object-fit: contain;
}

.modal.active {
    display: flex;
}

.expenditure-detail {
    background: var(--bg-primary);
    padding: 0.25rem 0.5rem;
    margin-bottom: 0.25rem;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.expenditure-detail:hover {
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.expenditure-content {
    flex: 1;
}

.main-info {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 0.1rem;
}

.amount {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-gray-900);
}

.account {
    padding: 0.25rem 0.5rem;
    border-radius: var(--border-radius-sm);
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    font-size: 0.875rem;
    font-weight: 500;
}

.account.pending {
    background: var(--color-warning);
    color: #000;
}

.datetime {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    font-weight: 500;
}


.sub-info {
    color: var(--color-gray-600);
    margin-bottom: 0.25rem;
}

.message {
    color: var(--color-gray-600);
    font-style: italic;
}

.receipt-image {
    margin-top: 0.5rem;
}

.receipt-image img {
    max-height: 100px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.receipt-image img:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

/* Modal styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.8);
    z-index: 1000;
    padding: 2rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.modal img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    cursor: default;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.add-expenditure-form {
    background: var(--bg-primary);
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-200);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 0.9rem;
    font-family: inherit;
    resize: vertical;
}

.form-actions {
    grid-column: 1 / -1;
}



/* Login Page Styles */
.login-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-info));
    padding: 2rem;
}

.login-container h1 {
    color: white;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.login-container form {
    background: var(--bg-primary);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 400px;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.login-container input[type="password"] {
    padding: 1rem 1.5rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    background: var(--bg-primary);
    color: var(--color-gray-800);
    transition: all var(--transition-normal);
    outline: none;
}

.login-container input[type="password"]:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
    transform: translateY(-1px);
}

.login-container button {
    padding: 1rem 1.5rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.login-container button:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}