:root {
    /* corpuls brand colors */
    --corpuls-black: #000000;
    --corpuls-red: #DD0B2F;
    --corpuls-white: #FFFFFF;
    --corpuls-yellow: #FFC73F;
    --corpuls-grey-i: #8C8C8C;
    --corpuls-grey-ii: #BFBFBF;
    --corpuls-blue: #2276B2;
    --corpuls-orange: #FB7224;

    /* UI tokens mapped from brand */
    --header-bg: var(--corpuls-black);
    --accent: var(--corpuls-red);
    --accent-hover: #B8092A;
    --blue: var(--corpuls-blue);
    --white: var(--corpuls-white);
    --light-gray: #F5F7FA;
    --mid-gray: #E0E4E8;
    --text: #333333;
    --text-light: #666666;
    --green: #28A745;
    --amber: var(--corpuls-yellow);
    --red: var(--corpuls-red);
    --user-msg-bg: #EAF2FA;
    --user-msg-border: #C4D9ED;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--light-gray);
    color: var(--text);
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--header-bg);
    color: var(--white);
    padding: 0 24px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.header-title {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.header-title .brand {
    color: var(--corpuls-red);
    font-weight: 700;
}

.header-title span {
    color: var(--corpuls-grey-ii);
    font-weight: 400;
}

.header-nav {
    display: flex;
    gap: 16px;
}

.header-nav a {
    color: var(--corpuls-grey-ii);
    text-decoration: none;
    font-size: 14px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.header-nav a:hover,
.header-nav a.active {
    opacity: 1;
    color: var(--white);
}

/* Chat container */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Messages */
.message {
    display: flex;
    gap: 12px;
    max-width: 85%;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.message.assistant .message-avatar {
    background: var(--corpuls-black);
    color: var(--white);
}

.message.user .message-avatar {
    background: var(--corpuls-blue);
    color: var(--white);
}

.message-content {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.6;
}

.message.assistant .message-content {
    background: var(--white);
    border: 1px solid var(--mid-gray);
    border-radius: 12px 12px 12px 2px;
}

.message.user .message-content {
    background: var(--user-msg-bg);
    border: 1px solid var(--user-msg-border);
    border-radius: 12px 12px 2px 12px;
}

/* Markdown in messages */
.message-content h2 {
    font-size: 15px;
    font-weight: 700;
    margin: 14px 0 6px 0;
    color: var(--corpuls-black);
}

.message-content h3 {
    font-size: 14px;
    font-weight: 600;
    margin: 12px 0 4px 0;
    color: var(--corpuls-black);
}

.message-content h4 {
    font-size: 13px;
    font-weight: 600;
    margin: 10px 0 4px 0;
}

.message-content h2:first-child,
.message-content h3:first-child,
.message-content h4:first-child {
    margin-top: 0;
}

.message-content p {
    margin: 6px 0;
}

.message-content ul, .message-content ol {
    margin: 6px 0;
    padding-left: 20px;
}

.message-content li {
    margin: 3px 0;
}

.message-content strong {
    font-weight: 600;
}

.message-content em {
    font-style: italic;
}

.message-content code {
    background: var(--light-gray);
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 13px;
}

.message-content hr {
    border: none;
    border-top: 1px solid var(--mid-gray);
    margin: 12px 0;
}

.message-content blockquote {
    border-left: 3px solid var(--corpuls-blue);
    padding: 6px 12px;
    margin: 8px 0;
    background: var(--light-gray);
    border-radius: 0 4px 4px 0;
    font-style: italic;
    color: var(--text-light);
}

/* Markdown tables */
.message-content .md-table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
    font-size: 13px;
}

.message-content .md-table th {
    background: var(--light-gray);
    padding: 8px 10px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--mid-gray);
    white-space: nowrap;
}

.message-content .md-table td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--mid-gray);
}

.message-content .md-table tr:last-child td {
    border-bottom: none;
}

.message-content .md-table tr:hover td {
    background: var(--light-gray);
}

/* Warning icon */
.warning-icon {
    font-size: 16px;
}

/* Confidence indicator */
.confidence {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--text-light);
    margin-top: 8px;
}

.confidence-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.verified-badge {
    display: inline-block;
    background: var(--corpuls-blue);
    color: var(--white);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

.confidence-dot.high { background: var(--green); }
.confidence-dot.medium { background: var(--amber); }
.confidence-dot.low { background: var(--red); }
.confidence-dot.none { background: var(--mid-gray); }

/* Sources */
.sources {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.source-tag {
    display: inline-block;
    background: var(--light-gray);
    border: 1px solid var(--mid-gray);
    border-radius: 4px;
    padding: 3px 8px;
    font-size: 11px;
    color: var(--text-light);
    cursor: default;
}

.source-tag:hover {
    border-color: var(--corpuls-blue);
    color: var(--corpuls-blue);
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--mid-gray);
    animation: bounce 1.4s infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes bounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

/* Feedback row */
.feedback-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
    gap: 8px;
}

.feedback-thumbs {
    display: flex;
    align-items: center;
    gap: 4px;
}

.thumb-btn {
    background: none;
    border: 1px solid var(--mid-gray);
    border-radius: 4px;
    padding: 2px 6px;
    cursor: pointer;
    font-size: 14px;
    opacity: 0.5;
    transition: opacity 0.2s, border-color 0.2s;
}

.thumb-btn:hover {
    opacity: 1;
    border-color: var(--corpuls-blue);
}

.feedback-thanks {
    font-size: 11px;
    color: var(--text-light);
    font-style: italic;
}

.feedback-report {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
}

.feedback-input {
    padding: 4px 8px;
    border: 1px solid var(--mid-gray);
    border-radius: 4px;
    font-size: 12px;
    font-family: inherit;
    outline: none;
    width: 200px;
}

.feedback-input:focus {
    border-color: var(--corpuls-blue);
}

.feedback-send {
    padding: 4px 10px;
    background: var(--corpuls-red);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
}

.feedback-cancel {
    padding: 4px 10px;
    background: none;
    color: var(--text-light);
    border: 1px solid var(--mid-gray);
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
}

/* Suggestion chips */
.suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.suggestion-chip {
    padding: 6px 12px;
    background: var(--light-gray);
    border: 1px solid var(--mid-gray);
    border-radius: 16px;
    color: var(--text);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.suggestion-chip:hover {
    border-color: var(--corpuls-blue);
    color: var(--corpuls-blue);
    background: var(--white);
}

/* New Chat button */
.new-chat-btn {
    background: transparent;
    border: 1px solid var(--corpuls-grey-ii);
    color: var(--corpuls-grey-ii);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.new-chat-btn:hover {
    border-color: var(--white);
    color: var(--white);
}

/* Product clarification buttons */
.clarify-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.clarify-btn {
    padding: 8px 16px;
    background: var(--white);
    border: 2px solid var(--corpuls-blue);
    border-radius: 8px;
    color: var(--corpuls-blue);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.clarify-btn:hover {
    background: var(--corpuls-blue);
    color: var(--white);
}

.inline-clarify {
    margin-top: 16px;
    padding: 12px 14px;
    background: rgba(34, 118, 178, 0.06);
    border-left: 3px solid var(--corpuls-blue);
    border-radius: 4px;
}

.inline-clarify-question {
    margin: 0 0 8px 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--corpuls-blue);
}

/* Product suggestion banner — shown when the current query mentioned a
   different product than the sticky, but the sticky was honoured. */
.product-suggestion {
    margin-top: 14px;
    padding: 10px 14px;
    background: rgba(221, 11, 47, 0.06);
    border-left: 3px solid var(--corpuls-red);
    border-radius: 4px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--corpuls-black);
}

.product-suggestion strong {
    color: var(--corpuls-black);
}

.product-suggestion-switch {
    background: var(--white);
    border: 1px solid var(--corpuls-red);
    color: var(--corpuls-red);
    border-radius: 4px;
    padding: 3px 10px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    margin: 0 2px;
    transition: all 0.2s;
}

.product-suggestion-switch:hover {
    background: var(--corpuls-red);
    color: var(--white);
}

/* Input area */
.chat-input-area {
    padding: 16px;
    background: var(--white);
    border-top: 1px solid var(--mid-gray);
    flex-shrink: 0;
}

.chat-input-wrapper {
    display: flex;
    gap: 8px;
    max-width: 900px;
    margin: 0 auto;
}

.chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--mid-gray);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    resize: none;
    min-height: 44px;
    max-height: 120px;
    transition: border-color 0.2s;
}

.chat-input:focus {
    border-color: var(--corpuls-blue);
}

.chat-input:disabled {
    background: var(--light-gray);
}

.send-btn {
    padding: 0 20px;
    background: var(--corpuls-red);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
}

.send-btn:hover {
    background: var(--accent-hover);
}

.send-btn:disabled {
    background: var(--mid-gray);
    cursor: not-allowed;
}

/* Disclaimer */
.disclaimer {
    text-align: center;
    font-size: 11px;
    color: var(--text-light);
    padding: 8px 16px 12px;
    background: var(--white);
    flex-shrink: 0;
}

/* Welcome message */
.welcome {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.welcome h2 {
    color: var(--corpuls-black);
    font-size: 20px;
    margin-bottom: 8px;
}

.welcome p {
    font-size: 14px;
    max-width: 500px;
    margin: 0 auto 20px;
    line-height: 1.5;
}

.welcome-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.welcome-example {
    background: var(--white);
    border: 1px solid var(--mid-gray);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
    max-width: 280px;
    text-align: left;
}

.welcome-example:hover {
    border-color: var(--corpuls-red);
    box-shadow: 0 2px 8px rgba(221, 11, 47, 0.1);
}

/* Product picker (landing) */
.product-picker {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 12px;
    max-width: 720px;
    margin: 0 auto 18px;
    text-align: left;
}

.product-tile {
    background: var(--white);
    border: 1px solid var(--mid-gray);
    border-radius: 10px;
    padding: 18px 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--corpuls-black);
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.1s;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.product-tile:hover {
    border-color: var(--corpuls-red);
    box-shadow: 0 4px 14px rgba(221, 11, 47, 0.12);
    transform: translateY(-1px);
}

.product-tile-name {
    font-size: 15px;
    color: var(--corpuls-black);
}

.product-tile-sub {
    font-size: 12px;
    font-weight: 400;
    color: var(--text-light);
}

.picker-skip {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 13px;
    cursor: pointer;
    padding: 8px 12px;
    text-decoration: underline;
}

.picker-skip:hover {
    color: var(--corpuls-black);
}

/* Header product pill */
.product-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(34, 118, 178, 0.15);
    border: 1px solid var(--corpuls-blue);
    color: var(--white);
    border-radius: 20px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.product-pill:hover {
    background: rgba(34, 118, 178, 0.15);
}

.product-pill[hidden] {
    display: none;
}

.product-pill-label {
    font-weight: 400;
    opacity: 0.85;
}

.product-pill-caret {
    font-size: 10px;
    opacity: 0.8;
}

/* Admin page */
.admin-container {
    max-width: 1200px;
    margin: 24px auto;
    padding: 0 16px;
    flex: 1;
}

.admin-section {
    background: var(--white);
    border: 1px solid var(--mid-gray);
    border-radius: 8px;
    padding: 24px;
    margin-bottom: 20px;
}

.admin-section h3 {
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--corpuls-black);
}

.upload-zone {
    border: 2px dashed var(--mid-gray);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    margin-bottom: 12px;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--corpuls-blue);
    background: var(--user-msg-bg);
}

.upload-zone p {
    color: var(--text-light);
    font-size: 14px;
}

.upload-zone .upload-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.url-input-group {
    display: flex;
    gap: 8px;
}

.url-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--mid-gray);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
}

.url-input:focus {
    border-color: var(--corpuls-blue);
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

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

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

.btn-danger {
    background: transparent;
    color: var(--red);
    border: 1px solid var(--red);
    padding: 4px 12px;
    font-size: 12px;
}

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

/* Documents table */
.doc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.doc-table th {
    text-align: left;
    padding: 8px 12px;
    border-bottom: 2px solid var(--mid-gray);
    color: var(--text-light);
    font-weight: 500;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.doc-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--light-gray);
}

.doc-table tr:last-child td {
    border-bottom: none;
}

/* Status messages */
.status-msg {
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 13px;
    margin-top: 12px;
    display: none;
}

.status-msg.success {
    background: #D4EDDA;
    color: #155724;
    display: block;
}

.status-msg.error {
    background: #F8D7DA;
    color: #721C24;
    display: block;
}

.status-msg.loading {
    background: var(--user-msg-bg);
    color: var(--corpuls-blue);
    display: block;
}

/* Analytics stat cards */
.stat-card {
    background: var(--light-gray);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--corpuls-black);
}

.stat-label {
    font-size: 11px;
    color: var(--text-light);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Feedback cards (admin) */
.feedback-card {
    border: 1px solid var(--mid-gray);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 10px;
    font-size: 13px;
    background: var(--white);
}

.feedback-card.negative {
    border-left: 3px solid var(--corpuls-red);
}

.feedback-card.positive {
    border-left: 3px solid var(--green);
}

.feedback-card.resolved {
    opacity: 0.6;
}

.feedback-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.feedback-rating {
    font-size: 16px;
}

.feedback-query {
    font-weight: 600;
    flex: 1;
}

.feedback-time {
    color: var(--text-light);
    font-size: 11px;
}

.feedback-answer {
    color: var(--text-light);
    font-size: 12px;
    margin-bottom: 6px;
    line-height: 1.4;
}

.feedback-comment {
    background: #FFF8E1;
    border-radius: 4px;
    padding: 6px 10px;
    margin-bottom: 6px;
    font-size: 12px;
}

.feedback-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.feedback-resolved-badge {
    font-size: 11px;
    color: var(--green);
    font-style: italic;
}

/* Responsive */
@media (max-width: 600px) {
    .message {
        max-width: 95%;
    }

    .welcome-examples {
        flex-direction: column;
        align-items: center;
    }
}