@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root {
    --bg-color: #f5f7fa;
    --card-bg: #ffffff;
    --border-color: #d0d7de;
    --accent-color: #4a90d9;
    --accent-hover: #3a7bc8;
    --accent-light: #e8f0fe;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --danger-color: #dc2626;
    --success-color: #16a34a;
    --warning-color: #d97706;
}

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    background: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
}

/* Login */
#login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: var(--bg-color);
}

.login-box {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    width: 380px;
    text-align: center;
}

.login-box h2 {
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--accent-color);
}

.login-box input {
    width: 100%;
    margin-bottom: 1.25rem;
    padding: 0.65rem 0.85rem;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.login-box input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.15);
}

.login-box button {
    width: 100%;
    padding: 0.7rem;
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.login-box button:hover {
    background: var(--accent-hover);
}

.error-msg {
    color: var(--danger-color);
    font-size: 0.9rem;
}

/* Admin Dashboard */
header {
    background: #fff;
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

header h1 {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
    color: var(--accent-color);
}

.env-badge {
    background: #dc2626;
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 8px;
    vertical-align: middle;
    letter-spacing: 0.05em;
}

.env-badge.demo-badge {
    background: #f59e0b;
}

main {
    padding: 1.5rem 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

.toolbar {
    margin-bottom: 1rem;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

button {
    padding: 0.45rem 1rem;
    border: 1px solid var(--border-color);
    background: #fff;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.875rem;
    transition: background 0.15s, border-color 0.15s;
}

button:hover:not(:disabled) {
    background: var(--bg-color);
    border-color: #b0b8c4;
}

button.primary {
    background: var(--accent-color);
    color: #fff;
    border: 1px solid var(--accent-color);
    font-weight: 600;
}

button.primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

button.danger {
    color: var(--danger-color);
    border-color: rgba(220, 38, 38, 0.4);
}

button.danger:hover {
    background: rgba(220, 38, 38, 0.06);
}

button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    width: fit-content;
}

.tabs button {
    border: none;
    background: transparent;
    padding: 0.6rem 1.25rem;
    border-radius: 0;
    color: var(--text-secondary);
    font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.tabs button:hover:not(:disabled) {
    background: transparent;
    color: var(--text-primary);
}

.tabs button.active {
    background: transparent;
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
    font-weight: 600;
}

/* Layout */
.tab-layout {
    display: flex;
    gap: 1.5rem;
    height: calc(100vh - 230px);
    align-items: stretch;
}

.list-container {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding-right: 0.5rem;
}

/* Custom scrollbar */
.list-container::-webkit-scrollbar {
    width: 6px;
}

.list-container::-webkit-scrollbar-track {
    background: transparent;
}

.list-container::-webkit-scrollbar-thumb {
    background: #c4c9d0;
    border-radius: 10px;
}

.preview-pane {
    flex: 1.2;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1.5rem;
    overflow: hidden;
    position: relative;
    white-space: pre-wrap;
    word-break: break-all;
    display: flex;
    flex-direction: column;
}

.preview-pane .preview-content {
    flex-direction: column;
    overflow: hidden;
    flex: 1;
    min-height: 0;
}

.preview-pane .proposal-details,
.preview-pane .markdown-preview {
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}

.preview-placeholder {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-style: italic;
}

.preview-content h3 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--accent-color);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

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

.inline-editor {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

.inline-editor .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex-shrink: 0;
}

button.success {
    background: var(--success-color);
    color: #fff;
    border: 1px solid var(--success-color);
    font-weight: 600;
}

button.success:hover {
    filter: brightness(0.95);
}

button.warning {
    background: var(--warning-color);
    color: #fff;
    border: 1px solid var(--warning-color);
    font-weight: 600;
}

button.warning:hover {
    filter: brightness(0.95);
}

/* Cards */
.doc-card {
    background: #fff;
    padding: 0.65rem 1rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    transition: background 0.15s, border-color 0.15s;
    cursor: pointer;
}

.doc-card:hover {
    border-color: var(--accent-color);
    background: var(--accent-light);
}

.doc-card.selected {
    background: var(--accent-light);
    border-color: var(--accent-color);
}

.doc-checkbox {
    margin-right: 1rem;
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.rule-checkbox,
.index-checkbox,
.analysis-checkbox {
    margin-right: 1rem;
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.doc-title {
    font-weight: 600;
    font-size: 0.9rem;
    flex-grow: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.doc-meta {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-right: 1rem;
}

.actions button {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed #b0b8c4;
    padding: 2rem;
    border-radius: 6px;
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    background: #fafbfc;
    transition: border-color 0.2s, background 0.2s;
}

.drop-zone:hover {
    border-color: var(--accent-color);
    background: var(--accent-light);
}

/* Modal */
.modal {
    background: rgba(0, 0, 0, 0.35);
    z-index: 1000;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem 2.5rem;
    width: 1100px;
    max-width: 95vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

#progress-modal .modal-content {
    width: 500px;
    min-height: auto;
}

.modal-content h2 {
    margin-top: 0;
    margin-bottom: 1.25rem;
    color: var(--accent-color);
}

#edit-modal .modal-body {
    display: flex;
    gap: 2rem;
    flex: 1;
    overflow: hidden;
}

#edit-modal .edit-side {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
    padding-right: 0.5rem;
}

#edit-modal .preview-side {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
}

.form-group label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    background: #fff;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    padding: 0.5rem 0.75rem;
    font-size: 0.95rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.15);
}

.markdown-preview {
    background: #fafbfc;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    line-height: 1.6;
    padding: 1rem;
    white-space: pre-wrap;
    word-break: break-all;
}

.inline-editor textarea,
#doc-content {
    font-family: 'Inter', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    padding: 0.75rem;
    background: #fff;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
}

.inline-editor #inline-content-docs,
.inline-editor #inline-content-rules,
#doc-content {
    flex: 1;
    min-height: 100px;
    resize: none;
}

.inline-editor textarea:focus,
#doc-content:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.15);
}

.inline-editor input {
    background: #fff;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 4px;
    padding: 0.5rem 0.75rem;
    font-size: 0.95rem;
}

.inline-editor input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.15);
}

.preview-area {
    display: flex;
    flex-direction: column;
    flex: 1;
    height: 100%;
}

#doc-preview {
    flex: 1;
}

/* Progress */
progress {
    width: 100%;
    height: 12px;
}

progress::-webkit-progress-bar {
    background: #e5e7eb;
    border-radius: 6px;
}

progress::-webkit-progress-value {
    background: var(--accent-color);
    border-radius: 6px;
}

/* Settings Tab */
.setting-group {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1.5rem;
    max-width: 800px;
}

.setting-group h3 {
    margin-top: 0;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.setting-item {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #eef0f3;
}

.setting-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.setting-label {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.setting-title {
    font-weight: 600;
    font-size: 1rem;
}

.setting-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Switch Toggle */
.switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #d1d5db;
    transition: .3s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

input:checked + .slider {
    background-color: var(--accent-color);
}

input:focus + .slider {
    box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.2);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* Rounded sliders */
.slider.round {
    border-radius: 28px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-right: 0.75rem;
    flex-shrink: 0;
    line-height: 1.4;
}

.status-badge.status-new {
    background: #e0f2fe;
    color: #0369a1;
    border: 1px solid #bae6fd;
}

.status-badge.status-applied {
    background: #dcfce7;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.status-badge.status-rejected {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.status-badge.status-pending {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.status-badge.status-reanalyzed {
    background: #ede9fe;
    color: #6d28d9;
    border: 1px solid #ddd6fe;
}

/* Proposal Detail Sections */
.prop-section {
    margin-bottom: 1rem;
    padding: 0.75rem 1rem;
    background: #fafbfc;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.prop-section h4 {
    margin: 0 0 0.6rem 0;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--accent-color);
    padding-bottom: 0.4rem;
    border-bottom: 1px solid #eef0f3;
}

.prop-content {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-word;
}

.ai-response-md {
    white-space: normal;
}

.ai-response-md p { margin: 0.4rem 0; }
.ai-response-md ul, .ai-response-md ol { margin: 0.4rem 0; padding-left: 1.5rem; }
.ai-response-md code { background: #f1f5f9; padding: 0.1rem 0.35rem; border-radius: 3px; font-size: 0.9em; color: #334155; }
.ai-response-md pre { background: #1e293b; color: #e2e8f0; padding: 0.8rem; border-radius: 4px; overflow-x: auto; font-family: 'Consolas', 'Courier New', monospace; font-size: 0.85rem; line-height: 1.5; }
.ai-response-md pre code { background: none; padding: 0; font-family: inherit; color: inherit; }
.ai-response-md table { border-collapse: collapse; width: 100%; margin: 0.5rem 0; font-size: 0.85rem; }
.ai-response-md th, .ai-response-md td { border: 1px solid var(--border-color); padding: 0.4rem 0.6rem; text-align: left; }
.ai-response-md th { background: #f1f5f9; font-weight: 600; }

.prop-section pre:not(.ai-response-md pre) {
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
    background: none;
    border: none;
    padding: 0;
}

.prop-section.rejection-section {
    border-left: 3px solid var(--danger-color);
    background: #fef2f2;
}

.prop-section.rejection-section h4 {
    color: var(--danger-color);
}

.prop-section.edit-guide-section {
    border-left: 3px solid var(--accent-color);
    background: var(--accent-light);
}

.prop-section.edit-guide-section h4 {
    color: var(--accent-color);
}

.edit-guide-content {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.edit-guide-tab {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-color);
    background: rgba(74, 144, 217, 0.12);
    padding: 2px 8px;
    border-radius: 3px;
    white-space: nowrap;
}

.edit-guide-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.edit-guide-reanalyzed-note {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: var(--warning-color);
}

/* Used References in Proposal Detail */
.used-ref-list {
    list-style: none;
    padding: 0;
    margin: 0.4rem 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.used-ref-list li {
    background: var(--accent-light);
    color: var(--accent-color);
    border: 1px solid rgba(74, 144, 217, 0.25);
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
    white-space: nowrap;
}

.ref-count-badge {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-left: 0.25rem;
}

/* Status Change Select */
#status-change-select {
    padding: 0.45rem 2.25rem 0.45rem 0.85rem;
    border: 1px solid var(--border-color);
    background: #fff;
    color: var(--text-primary);
    cursor: pointer;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.9rem;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.15s;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath stroke='%236b7280' stroke-width='1.5' fill='none' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.6rem center;
}

#status-change-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(74, 144, 217, 0.15);
}

#status-change-select option {
    background: #fff;
    color: var(--text-primary);
    font-size: 0.9rem;
}

/* Preview Status Badge (proposal detail pane) */
.preview-status {
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    letter-spacing: 0.03em;
    flex-shrink: 0;
}

.preview-status.status-new {
    background: #e0f2fe;
    color: #0369a1;
    border: 1px solid #bae6fd;
}

.preview-status.status-applied {
    background: #dcfce7;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.preview-status.status-rejected {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.preview-status.status-pending {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.preview-status.status-reanalyzed {
    background: #ede9fe;
    color: #6d28d9;
    border: 1px solid #ddd6fe;
}

/* Demo Mode Styles */
.demo-banner {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    text-align: center;
    padding: 10px 16px;
    font-weight: 700;
    font-size: 0.95rem;
    position: sticky;
    top: 0;
    z-index: 200;
}

.demo-back-chat-btn {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white !important;
    text-decoration: none;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
}

.demo-back-chat-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.6);
}

.demo-tab-description {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border: 1px solid #93c5fd;
    border-left: 4px solid #3b82f6;
    border-radius: 6px;
    padding: 12px 16px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    color: #1e40af;
    line-height: 1.6;
}