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

:root {
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-hover: #252542;
    --accent-primary: #00ff88;
    --accent-secondary: #00d4ff;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border-color: #27272a;
    --shadow: rgba(0, 0, 0, 0.5);
}

body {
    font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    line-height: 1.6;
}

#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px var(--shadow);
}

header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn-logout {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.2s;
}

.btn-logout:hover {
    background: var(--bg-hover);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
}

.sidebar-header h2 {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.project-list-container {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
}

.project-list-container::-webkit-scrollbar {
    width: 6px;
}

.project-list-container::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.project-list-container::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 3px;
}

.project-list-container::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

#project-list {
    list-style: none;
}

.project-item {
    padding: 10px 12px;
    margin-bottom: 6px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    border-left: 2px solid transparent;
}

.project-item:hover {
    background: var(--bg-hover);
    border-left-color: var(--accent-primary);
}

.project-item.active {
    background: var(--bg-hover);
    border-left-color: var(--accent-primary);
    box-shadow: 0 2px 8px var(--shadow);
}

.project-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.project-id {
    font-size: 11px;
    color: var(--text-muted);
}

.no-projects {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem 1rem;
    font-size: 13px;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
}

.placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
}

.placeholder h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.placeholder p {
    font-size: 14px;
}

/* Project Header */
.project-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-secondary);
}

.project-header h2 {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
}

.project-actions {
    display: flex;
    gap: 8px;
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-danger, .btn-export, .btn-settings {
    padding: 7px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
    border: 1px solid var(--border-color);
}

.btn-primary {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
}

.btn-primary:hover {
    background: #00dd77;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
}

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

.btn-secondary:hover {
    background: var(--bg-hover);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-danger {
    background: transparent;
    color: #ef4444;
    border-color: #7f1d1d;
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: #ef4444;
}

.btn-export {
    background: transparent;
    color: var(--accent-secondary);
    border-color: var(--border-color);
}

.btn-export:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--accent-secondary);
}

/* Model Quick Bar */
.model-quick {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.model-compact-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.model-icon {
    font-size: 24px;
    line-height: 1;
}

.model-info-compact {
    display: flex;
    flex-direction: column;
}

.model-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.model-provider {
    font-size: 11px;
    color: var(--text-muted);
}

/* Messages */
.messages-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.messages-header {
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.messages-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.messages-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 1.5rem;
}

.messages-content::-webkit-scrollbar {
    width: 8px;
}

.messages-content::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

.messages-content::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 4px;
}

.messages-content::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

#messages {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message-item {
    padding: 1rem;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    transition: all 0.2s;
}

.message-item:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 2px 10px rgba(0, 255, 136, 0.1);
}

.message-chat {
    border-left: 3px solid var(--accent-primary);
}

.message-image {
    border-left: 3px solid var(--accent-secondary);
}

.message-item strong {
    color: var(--accent-primary);
    font-weight: 600;
}

.message-item img {
    max-width: 100%;
    border-radius: 6px;
    margin-top: 8px;
}

.message-item audio {
    width: 100%;
    margin-top: 8px;
}

.no-messages {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem;
    font-size: 14px;
}

/* Status */
.status {
    padding: 0.5rem 1.5rem;
    background: var(--bg-hover);
    color: var(--accent-primary);
    font-size: 13px;
    border-top: 1px solid var(--border-color);
    display: none;
}

/* Input Section */
.input-section {
    padding: 1rem 1.5rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.attachment-preview {
    margin-bottom: 0.5rem;
}

.attachment-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--bg-hover);
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-secondary);
    margin-right: 6px;
}

.btn-remove-attachment {
    background: transparent;
    border: none;
    color: #ef4444;
    cursor: pointer;
    font-size: 16px;
    padding: 0;
    line-height: 1;
}

#input {
    width: 100%;
    min-height: 80px;
    padding: 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    transition: all 0.2s;
}

#input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(0, 255, 136, 0.1);
}

#input::placeholder {
    color: var(--text-muted);
}

.button-group {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.btn-chat, .btn-image, .btn-video-2d, .btn-image-to-video, .btn-voice, .btn-rag, .btn-crawler, .btn-attach {
    padding: 9px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
    border: 1px solid var(--border-color);
}

.btn-chat {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
    flex: 1;
}

.btn-chat:hover {
    background: #00dd77;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.3);
}

.btn-image {
    background: var(--accent-secondary);
    color: var(--bg-primary);
    border-color: var(--accent-secondary);
}

.btn-image:hover {
    background: #00bfea;
    box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}

.btn-video-2d {
    background: #6610f2;
    color: white;
    border-color: #6610f2;
}

.btn-video-2d:hover {
    background: #5a0dd4;
    box-shadow: 0 0 15px rgba(102, 16, 242, 0.3);
}

.btn-image-to-video {
    background: #e83e8c;
    color: white;
    border-color: #e83e8c;
}

.btn-image-to-video:hover {
    background: #d63384;
    box-shadow: 0 0 15px rgba(232, 62, 140, 0.3);
}

.btn-voice, .btn-rag, .btn-attach {
    background: transparent;
    color: var(--text-secondary);
}

.btn-voice:hover, .btn-rag:hover, .btn-attach:hover {
    background: var(--bg-hover);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    z-index: 1;
    width: min(1200px, 95vw);
    max-height: 90vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.9);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.3rem;
    color: var(--text-primary);
}

.modal-header p {
    margin: 4px 0 0;
    color: var(--text-muted);
    font-size: 13px;
}

.modal-close {
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    line-height: 1;
    transition: all 0.2s;
}

.modal-close:hover {
    color: var(--accent-primary);
    transform: rotate(90deg);
}

.modal-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

#model-modal-search {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s;
}

#model-modal-search:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(0, 255, 136, 0.1);
}

#model-modal-search::placeholder {
    color: var(--text-muted);
}

.usecase-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.usecase-chip {
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.usecase-chip:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(0, 255, 136, 0.05);
}

.usecase-chip.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--bg-primary);
    font-weight: 500;
}

.model-params {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-tertiary);
}

.param-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.param-field label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.param-field input {
    padding: 6px 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 13px;
    transition: all 0.2s;
}

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

.model-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 8px;
}

.model-list::-webkit-scrollbar {
    width: 6px;
}

.model-list::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

.model-list::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 3px;
}

.model-list::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

.model-empty {
    padding: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}

.model-option {
    display: grid;
    grid-template-columns: 50px 1fr auto;
    grid-template-rows: auto auto auto;
    gap: 8px 12px;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-tertiary);
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
    width: 100%;
}

.model-option:hover {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
    box-shadow: 0 2px 8px rgba(0, 255, 136, 0.1);
}

.model-option.selected {
    border-color: var(--accent-primary);
    background: rgba(0, 255, 136, 0.1);
    box-shadow: inset 0 0 0 1px var(--accent-primary);
}

.model-option-left {
    display: contents;
}

.model-option .model-icon {
    grid-column: 1;
    grid-row: 1 / -1;
    font-size: 32px;
    align-self: start;
}

.model-info {
    grid-column: 2;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.model-option .model-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.model-option .model-provider {
    font-size: 11px;
    color: var(--text-muted);
}

.model-description {
    grid-column: 2 / 3;
    grid-row: 2;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: 4px;
}

.model-tags {
    grid-column: 3;
    grid-row: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    align-items: flex-start;
    justify-content: flex-end;
    max-width: 300px;
}

.model-tag {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    background: var(--bg-hover);
    color: var(--text-muted);
    white-space: nowrap;
}

.model-combos {
    grid-column: 2 / -1;
    grid-row: 3;
    font-size: 11px;
    color: var(--text-muted);
    padding-top: 8px;
    border-top: 1px solid var(--border-color);
}

/* Settings Summary (unused but keeping for compatibility) */
.model-summary {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-tertiary);
}

.model-summary-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.model-summary-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

.model-summary-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.model-summary-actions {
    display: flex;
    justify-content: flex-end;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 220px;
    }
    
    .project-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .model-params {
        grid-template-columns: 1fr 1fr;
    }
}