/* YeeLLM Chat - Hauptstil */

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: #475569;
    --success-color: #22c55e;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
}

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

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

.hidden {
    display: none !important;
}

/* Auth Container */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.auth-box {
    background: var(--bg-secondary);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border-color);
}

.auth-box h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-size: 1.75rem;
}

.auth-tabs {
    display: flex;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.auth-tab {
    flex: 1;
    padding: 0.75rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
}

.auth-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.auth-form input {
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: border-color 0.2s;
}

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

.auth-form input::placeholder {
    color: var(--text-secondary);
}

.btn-primary {
    padding: 0.875rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

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

.error-message {
    padding: 0.75rem 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error-color);
    border-radius: 8px;
    color: var(--error-color);
    font-size: 0.875rem;
}

/* Chat Container */
.chat-container {
    display: flex;
    height: 100vh;
}

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

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

.sidebar-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.btn-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: none;
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-icon:hover {
    background: var(--border-color);
}

.chat-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.chat-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
    margin-bottom: 0.25rem;
}

.chat-item:hover {
    background: var(--bg-tertiary);
}

.chat-item.active {
    background: var(--bg-tertiary);
}

.chat-item-title {
    flex: 1;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-item-delete {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    margin-left: 0.5rem;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary, #888);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: background 0.2s, color 0.2s, opacity 0.2s;
}

.chat-item:hover .chat-item-delete,
.chat-item.active .chat-item-delete {
    opacity: 1;
}

.chat-item-delete:hover {
    background: rgba(255, 0, 0, 0.15);
    color: #e74c3c;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.5rem;
}

.btn-secondary {
    flex: 1;
    padding: 0.625rem 1rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: background 0.2s;
}

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

/* Main Chat */
.main-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.welcome-message {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.welcome-message h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.message {
    display: flex;
    gap: 1rem;
    max-width: 80%;
}

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

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--primary-color);
}

.message-content {
    background: var(--bg-tertiary);
    padding: 1rem 1.25rem;
    border-radius: 12px;
    font-size: 0.9375rem;
    line-height: 1.6;
    max-width: 100%;
    word-wrap: break-word;
}

.message.user .message-content {
    background: var(--primary-color);
    color: white;
}

/* Input Container */
.input-container {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

#model-select {
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-family: inherit;
    min-width: 180px;
    max-width: 260px;
    height: 48px;
    cursor: pointer;
    flex-shrink: 0;
}

#model-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

#message-input {
    flex: 1;
    padding: 0.875rem 1.25rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 0.9375rem;
    resize: none;
    min-height: 48px;
    max-height: 200px;
    font-family: inherit;
}

#message-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.btn-send {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-color);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    transition: background 0.2s;
    flex-shrink: 0;
}

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

.btn-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 2rem;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 16px;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
}

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

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.btn-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

/* Admin-Modal: ~2/3 breiter, skaliert mit dem Fenster (kleiner Rand) */
#admin-modal .modal-content {
    width: 100%;
    max-width: 1334px;
}

/* Admin Tabs */
.admin-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.admin-tab {
    padding: 0.625rem 1.25rem;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.admin-tab:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.admin-tab.active {
    background: var(--primary-color);
    color: white;
}

.admin-panel {
    display: none;
}

.admin-panel:not(.hidden) {
    display: block;
}

/* Formulare */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="url"],
.form-group input[type="number"] {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: border-color 0.2s;
}

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

.form-group small {
    display: block;
    margin-top: 0.375rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

/* Test Result */
.test-result {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
}

.test-result.success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.test-result.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.data-table tr:hover {
    background: var(--bg-tertiary);
}

.actions-cell {
    white-space: nowrap;
}

.actions-cell .btn-secondary {
    margin-right: 0.5rem;
    flex: none;
    display: inline-block;
}

/* Global-Tab / Vouchers */
.voucher-section {
    margin: 1.5rem 0;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.voucher-section h4 {
    margin-bottom: 0.75rem;
    font-size: 0.9375rem;
}

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

.voucher-actions input[type="number"] {
    width: 80px;
    padding: 0.625rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.voucher-actions .btn-secondary {
    flex: none;
}

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

#global-models,
#llm-host {
    width: 100%;
}

/* Modell-Freigabe */
.models-hint {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.models-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    max-height: 40vh;
    overflow-y: auto;
}

.model-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: border-color 0.2s;
    word-break: break-all;
}

.model-checkbox:hover {
    border-color: var(--primary-color);
}

.model-checkbox input {
    flex-shrink: 0;
    accent-color: var(--primary-color);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        bottom: 0;
        z-index: 100;
        transition: left 0.3s;
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .modal-content {
        margin: 1rem;
        max-height: calc(100vh - 2rem);
    }
}