/* OpenAI Chat - Full-Featured Styles (matching Bedrock version) */

:root {
    /* EU Partner Search — deep green / copper */
    --primary-color: #0f4c3a;
    --primary-hover: #0a3328;
    --accent-color: #b87333;
    --secondary-color: #64748b;
    --bg-color: #f3f6f4;
    --card-bg: #ffffff;
    --text-color: #1a2e28;
    --text-secondary: #5a6b64;
    --border-color: #d5e0db;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --user-msg-bg: #0f4c3a;
    --user-msg-text: #ffffff;
    --bot-msg-bg: #ffffff;
}

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

body {
    font-family: 'Söhne', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
}

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

/* Header */
header {
    text-align: center;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin-bottom: 4px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.header-buttons {
    margin-top: 12px;
    display: flex;
    gap: 10px;
    justify-content: center;
}

.header-buttons button {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
}

.header-buttons button:hover {
    background: var(--bg-color);
    border-color: var(--primary-color);
}

.header-buttons .logout-button {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #dc2626;
}

.header-buttons .logout-button:hover {
    background: #fecaca;
    border-color: #f87171;
}

/* Chat Container */
.chat-container {
    flex: 1;
    background: var(--card-bg);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    min-height: 400px;
}

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Messages */
.message {
    max-width: 85%;
    animation: fadeIn 0.3s ease;
}

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

.message-content {
    padding: 12px 16px;
    border-radius: 12px;
    line-height: 1.6;
}

.message-user {
    align-self: flex-end;
}

.message-user .message-content {
    background: var(--user-msg-bg);
    color: var(--user-msg-text);
    border-bottom-right-radius: 4px;
}

.message-bot {
    align-self: flex-start;
}

.message-bot .message-content {
    background: var(--bot-msg-bg);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 4px;
}

.message-system .message-content {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    text-align: left;
}

.message-system ul {
    margin: 10px 0;
    padding-left: 20px;
}

.message-error .message-content {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--error-color);
}

/* Streaming cursor */
.message-bot.streaming .message-content::after {
    content: '▌';
    animation: blink 1s infinite;
    color: var(--primary-color);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* Message meta */
.message-meta {
    margin-top: 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Topic highlighting */
.topic-id {
    color: var(--primary-color);
    font-weight: 600;
}

.message-bot a {
    color: var(--primary-color);
}

/* Input Container */
.input-container {
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    margin-top: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.input-container textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
}

.input-container textarea:focus {
    border-color: var(--primary-color);
}

.input-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 12px;
}

.pdf-icon-button {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.2s;
}

.pdf-icon-button:hover {
    border-color: var(--primary-color);
    background: #f0fdf4;
}

.pdf-icon-button.uploaded {
    background: #f0fdf4;
    border-color: var(--success-color);
}

.pdf-status-inline {
    flex: 1;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.pdf-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 500;
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
}

.pdf-badge.uploading {
    background: #fff3e0;
    color: #e65100;
    border-color: #ffb74d;
}

.pdf-badge.error {
    background: #ffebee;
    color: #c62828;
    border-color: #ef9a9a;
}

.send-button {
    padding: 10px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background 0.2s;
}

.send-button:hover {
    background: var(--primary-hover);
}

.send-button:disabled {
    background: var(--secondary-color);
    cursor: not-allowed;
}

/* Info Bar */
.info-bar {
    display: flex;
    justify-content: space-between;
    padding: 10px 20px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.cache-hit {
    color: var(--success-color);
}

.cache-miss {
    color: var(--text-secondary);
}

/* Cascade sync status footer */
.sync-status {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-secondary);
    opacity: 0.6;
    padding: 6px 20px 0;
    min-height: 1em;
}

.sync-status.error {
    color: var(--error-color);
    opacity: 0.8;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px;
    color: var(--text-secondary);
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* PDF Progress Bar */
.pdf-progress {
    width: 100%;
    max-width: 400px;
    margin-top: 8px;
}

.pdf-progress-bar {
    width: 100%;
    height: 6px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
}

.pdf-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #003399, #FFCC00);
    border-radius: 3px;
    transition: width 0.5s ease;
}

.pdf-progress-steps {
    display: flex;
    justify-content: space-between;
    margin-top: 4px;
    font-size: 11px;
    color: #999;
}

.pdf-progress-steps .step {
    transition: color 0.3s;
}

.pdf-progress-steps .step.active {
    color: #003399;
    font-weight: 600;
}

.pdf-progress-steps .step.done {
    color: #28a745;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--card-bg);
    padding: 30px;
    border-radius: 16px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 12px;
    text-align: center;
}

.stat-card.success {
    background: #f0fdf4;
}

.stat-card.warning {
    background: #fffbeb;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.stats-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.stats-section h3 {
    font-size: 1rem;
    margin-bottom: 10px;
}

.popular-list {
    padding-left: 20px;
}

.popular-list li {
    margin: 8px 0;
}

.hit-count {
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
    margin-right: 8px;
}

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

.stats-footer {
    margin-top: 20px;
    text-align: center;
    color: var(--text-secondary);
}

.error {
    color: var(--error-color);
}

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 1.25rem;
    }
    
    .message {
        max-width: 95%;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}