/* Modern Dark Theme */
:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --border-color: #30363d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --accent-hover: #1f6feb;
    --danger-color: #f85149;
    --success-color: #238636;
    --warning-color: #d29922;
    --font-family:
        -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial,
        sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

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

a:hover {
    text-decoration: underline;
}

/* Layout */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 40px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 32px;
    height: 32px;
}

.logo h1 {
    font-size: 20px;
    font-weight: 600;
}

.nav {
    display: flex;
    gap: 20px;
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 8px 0;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    border-bottom-color: var(--accent-color);
    text-decoration: none;
}

/* Main Content */
.main {
    flex: 1;
}

/* Hero */
.hero {
    text-align: center;
    margin-bottom: 40px;
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    background: linear-gradient(90deg, #58a6ff, #a371f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

/* Analysis Card */
.analysis-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

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

.form-input {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.stock-name {
    position: absolute;
    right: 16px;
    color: var(--text-secondary);
    font-size: 14px;
    pointer-events: none;
}

/* Autocomplete */
.autocomplete-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-top: 4px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.autocomplete-item {
    padding: 10px 16px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    transition: background 0.1s;
}

.autocomplete-item:hover,
.autocomplete-item.active {
    background-color: rgba(88, 166, 255, 0.1);
}

.item-symbol {
    font-weight: 600;
    color: var(--accent-color);
}

.item-name {
    color: var(--text-secondary);
}

/* Form Options */
.form-options {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    user-select: none;
}

.checkbox-label input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.checkbox-label input:checked + .checkmark {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.checkmark::after {
    content: '✓';
    color: white;
    font-size: 12px;
    display: none;
}

.checkbox-label input:checked + .checkmark::after {
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
    width: 100%;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-hover);
}

.btn-secondary {
    background-color: #21262d;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: #30363d;
    border-color: #8b949e;
}

.btn-danger {
    background-color: rgba(248, 81, 73, 0.1);
    color: var(--danger-color);
    border: 1px solid rgba(248, 81, 73, 0.4);
}

.btn-danger:hover:not(:disabled) {
    background-color: rgba(248, 81, 73, 0.2);
    border-color: var(--danger-color);
}

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    font-size: 16px;
    border-radius: 4px;
    transition: background 0.2s;
}

.btn-icon:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Status Message */
.status-message {
    margin-top: 16px;
    padding: 12px;
    border-radius: 6px;
    font-size: 14px;
    display: none;
}

.status-message.error {
    background-color: rgba(248, 81, 73, 0.1);
    color: #ff7b72;
    border: 1px solid rgba(248, 81, 73, 0.4);
    display: block;
}

.status-message.success {
    background-color: rgba(35, 134, 54, 0.1);
    color: #3fb950;
    border: 1px solid rgba(35, 134, 54, 0.4);
    display: block;
}

.status-message.info {
    background-color: rgba(88, 166, 255, 0.1);
    color: #79c0ff;
    border: 1px solid rgba(88, 166, 255, 0.4);
    display: block;
}

/* Recent Reports Grid */
.section-title {
    font-size: 20px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.report-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.report-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-decoration: none;
    transition: all 0.2s;
}

.report-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-color);
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.1);
}

.report-symbol {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.report-date {
    font-size: 14px;
    color: var(--text-secondary);
}

.view-all-link {
    display: inline-block;
    margin-top: 10px;
    font-size: 14px;
}

.empty-message {
    color: var(--text-secondary);
    font-style: italic;
    grid-column: 1 / -1;
}

/* Footer */
.footer {
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

/* Spinner */
.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    display: inline-block;
}

.spinner.large {
    width: 32px;
    height: 32px;
    border-width: 3px;
    border-top-color: var(--accent-color);
}

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

/* Report Page Specifics */
.report-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.report-title {
    font-size: 32px;
    margin-bottom: 8px;
}

.report-subtitle {
    display: block;
    color: var(--text-secondary);
    font-size: 16px;
}

.report-actions {
    display: flex;
    gap: 12px;
}

.report-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    margin-bottom: 40px;
}

.back-link-wrapper {
    margin-bottom: 40px;
}

.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 40px 0;
    color: var(--text-secondary);
}

/* History Page Helper Classes */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.page-title {
    font-size: 28px;
}

.filter-input {
    width: 240px;
    padding: 8px 12px;
    font-size: 14px;
}

.report-group {
    margin-bottom: 30px;
}

.group-title {
    font-size: 18px;
    color: var(--accent-color);
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.group-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.report-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background-color: var(--card-bg);
    border-radius: 6px;
    transition: background 0.2s;
}

.report-item:hover {
    background-color: #21262d;
}

.report-link {
    flex: 1;
    display: flex;
    gap: 20px;
    color: var(--text-primary);
}

.report-link:hover {
    text-decoration: none;
    color: var(--accent-color);
}

.report-size {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.modal-content h3 {
    margin-bottom: 12px;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.modal-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.modal-actions .btn {
    min-width: 100px;
}

/* Markdown Content Styling (partial override for Report Content) */
.markdown-body {
    line-height: 1.8;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin-top: 24px;
    margin-bottom: 16px;
    padding-bottom: 0.3em;
    border-bottom: 1px solid var(--border-color);
}

.markdown-body h1 {
    font-size: 2em;
}
.markdown-body h2 {
    font-size: 1.5em;
    border-bottom: none;
}
.markdown-body h3 {
    font-size: 1.25em;
    border-bottom: none;
}

.markdown-body p {
    margin-bottom: 16px;
}

.markdown-body ul,
.markdown-body ol {
    padding-left: 2em;
    margin-bottom: 16px;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 16px;
}

.markdown-body th,
.markdown-body td {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
}

.markdown-body th {
    background-color: #21262d;
    font-weight: 600;
}

.markdown-body code {
    background-color: rgba(110, 118, 129, 0.4);
    padding: 0.2em 0.4em;
    border-radius: 6px;
    font-family:
        ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas,
        'Liberation Mono', monospace;
    font-size: 85%;
}

.markdown-body pre code {
    background-color: transparent;
    padding: 0;
}

.markdown-body pre {
    padding: 16px;
    overflow: auto;
    font-size: 85%;
    line-height: 1.45;
    background-color: #161b22;
    border-radius: 6px;
    margin-bottom: 16px;
}

.markdown-body blockquote {
    padding: 0 1em;
    color: var(--text-secondary);
    border-left: 0.25em solid var(--border-color);
    margin-bottom: 16px;
}

/* Mobile Responsiveness */
@media (max-width: 600px) {
    .header {
        flex-direction: column;
        gap: 16px;
        margin-bottom: 30px;
    }

    .report-header {
        flex-direction: column;
        gap: 20px;
    }

    .report-actions {
        width: 100%;
        justify-content: stretch;
    }

    .report-actions .btn {
        flex: 1;
    }

    .analysis-card {
        padding: 20px;
    }

    .hero-title {
        font-size: 36px;
    }

    .report-content {
        padding: 20px;
    }
}