/**
 * styles.css - Main Stylesheet
 * Professional financial/trading theme with responsive design
 */

/* CSS Variables for theming */
:root {
    --primary-color: #1a73e8;
    --secondary-color: #34a853;
    --danger-color: #ea4335;
    --warning-color: #fbbc04;
    --background-color: #f8f9fa;
    --surface-color: #ffffff;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --border-color: #dadce0;
    --success-color: #34a853;
    --error-color: #ea4335;
    --shadow-sm: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    --shadow-md: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);
    --shadow-lg: 0 2px 6px 2px rgba(60, 64, 67, 0.15), 0 8px 24px 4px rgba(60, 64, 67, 0.15);
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    font-size: 16px;
}

/* Header */
header {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    padding: 2rem 0;
    box-shadow: var(--shadow-md);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 400;
}

/* Main container */
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

/* Section styles */
section {
    background: var(--surface-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Form styles */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
}

input[type="text"],
input[type="password"],
input[type="number"] {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.1);
}

.input-hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Button styles */
button,
.btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s, box-shadow 0.2s, transform 0.1s;
    display: inline-block;
    text-align: center;
}

button:hover,
.btn:hover {
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

button:active,
.btn:active {
    transform: translateY(0);
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

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

.btn-primary:hover {
    background-color: #1557b0;
}

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

.btn-success:hover {
    background-color: #2d8e47;
}

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

.btn-secondary:hover {
    background-color: #4a4f54;
}

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

.btn-danger:hover {
    background-color: #c5221f;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Status indicators */
.status-indicator {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

.status-success {
    background-color: #e6f4ea;
    color: #137333;
}

.status-error {
    background-color: #fce8e6;
    color: #c5221f;
}

.status-warning {
    background-color: #fef7e0;
    color: #b06000;
}

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

/* Loading indicator */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--primary-color);
    font-weight: 500;
}

.hidden {
    display: none !important;
}

/* Error and success messages */
.error-message {
    background-color: #fce8e6;
    color: #c5221f;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--error-color);
}

.success-message {
    background-color: #e6f4ea;
    color: #137333;
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    border-left: 4px solid var(--success-color);
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stock info grid */
.stock-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.info-item {
    padding: 1rem;
    background-color: var(--background-color);
    border-radius: 4px;
    border-left: 3px solid var(--primary-color);
}

.info-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.info-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.info-value.positive {
    color: var(--success-color);
}

.info-value.negative {
    color: var(--error-color);
}

/* Overall result */
.overall-result {
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.overall-result.pass {
    background: linear-gradient(135deg, #e6f4ea 0%, #d4edda 100%);
    border: 2px solid var(--success-color);
}

.overall-result.fail {
    background: linear-gradient(135deg, #fce8e6 0%, #f8d7da 100%);
    border: 2px solid var(--error-color);
}

.overall-result h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.overall-result.pass h3 {
    color: var(--success-color);
}

.overall-result.fail h3 {
    color: var(--error-color);
}

.overall-result p {
    font-size: 1.1rem;
    color: var(--text-primary);
}

/* Criteria list */
.criteria-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.criterion-item {
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid;
    background-color: var(--background-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.criterion-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.criterion-item.pass {
    border-left-color: var(--success-color);
    background-color: #f0f9f4;
}

.criterion-item.fail {
    border-left-color: var(--error-color);
    background-color: #fef6f6;
}

.criterion-item.pending {
    border-left-color: var(--warning-color);
    background-color: #fffbf0;
}

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

.criterion-icon {
    font-size: 1.5rem;
    font-weight: bold;
    margin-right: 0.75rem;
}

.criterion-item.pass .criterion-icon {
    color: var(--success-color);
}

.criterion-item.fail .criterion-icon {
    color: var(--error-color);
}

.criterion-item.pending .criterion-icon {
    color: var(--warning-color);
}

.criterion-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.criterion-description {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.criterion-details {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-top: 0.5rem;
}

.criterion-details p {
    margin: 0.25rem 0;
}

.criterion-details .note {
    font-style: italic;
    color: var(--text-secondary);
}

/* Action buttons */
.action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

/* History list */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 500px;
    overflow-y: auto;
}

.history-item {
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--surface-color);
    transition: box-shadow 0.2s;
}

.history-item:hover {
    box-shadow: var(--shadow-sm);
}

.history-item.pass {
    border-left: 4px solid var(--success-color);
}

.history-item.fail {
    border-left: 4px solid var(--error-color);
}

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

.history-symbol {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.history-status {
    font-size: 1.25rem;
    font-weight: bold;
}

.history-item.pass .history-status {
    color: var(--success-color);
}

.history-item.fail .history-status {
    color: var(--error-color);
}

.history-details {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

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

.no-history {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
    font-style: italic;
}

/* Rate limit status */
.rate-limit-status {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.5rem;
    background-color: var(--background-color);
    border-radius: 4px;
    text-align: center;
    margin-top: 1rem;
}

/* Footer */
footer {
    background-color: var(--surface-color);
    padding: 2rem 0;
    margin-top: 3rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

footer p {
    margin-bottom: 0.5rem;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Responsive design */
@media (max-width: 768px) {
    h1 {
        font-size: 1.5rem;
    }
    
    section {
        padding: 1.5rem;
    }
    
    section h2 {
        font-size: 1.25rem;
    }
    
    .input-grid {
        grid-template-columns: 1fr;
    }
    
    .stock-info-grid {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .action-buttons button {
        width: 100%;
    }
    
    .overall-result h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    main {
        padding: 0 1rem;
    }
    
    section {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    h1 {
        font-size: 1.25rem;
    }
    
    button,
    .btn {
        padding: 0.625rem 1rem;
        font-size: 0.9rem;
    }
}

/* Print styles */
@media print {
    header,
    footer,
    .action-buttons,
    #apiKeySection,
    #inputSection {
        display: none;
    }
    
    section {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
    
    .criterion-item {
        page-break-inside: avoid;
    }
}

/* Accessibility improvements */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom scrollbar for history list */
.history-list::-webkit-scrollbar {
    width: 8px;
}

.history-list::-webkit-scrollbar-track {
    background: var(--background-color);
    border-radius: 4px;
}

.history-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.history-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}