:root {
    --warm-orange: #F6A865;
    --medium-blue: #78B5D6;
    --coral-red: #D9846B;
    --dark-blue: #4F6F8F;
    --black: #000000;
    --yellow: #FAB31D;
    --olive-green: #9A8A28;
    --rust-red: #CF6859;
    --blue-gray: #3F4F68;
    --plum: #8D4F62;
    --white: #FFFFFF;
    --light-gray: #F5F5F5;
    --medium-gray: #E0E0E0;
    --dark-gray: #888888;

    /* Light theme */
    --background: #ffffff;
    --text: #333333;
    --dark-blue: #1a365d;
    --medium-blue: #2c5282;
    --light-blue: #ebf8ff;
    --white: #ffffff;

    /* Dark theme */
    --dark-background: #0d0d0d;
    --dark-text: #f0f0f0;
    --dark-accent: #1a1a1a;
    --dark-highlight: #2d2d2d;
}

.dark-mode {
    --background: #0d0d0d;
    --text: #f0f0f0;
    --dark-blue: #1a1a1a;
    --medium-blue: #404040;
    --light-blue: #2d2d2d;
    --white: #f0f0f0;
}

.dark-mode .chat-container {
    background-color: var(--background) !important;
    border-color: var(--medium-blue);
}

.dark-mode .message {
    background-color: var(--light-blue);
    color: var(--text);
}

.dark-mode input,
.dark-mode textarea {
    background-color: var(--dark-blue);
    color: var(--text);
    border-color: var(--medium-blue);
}

.dark-mode button {
    background-color: var(--medium-blue);
    color: var(--text);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text);
    transition: background-color 0.3s, color 0.3s;
}

body.dark-mode {
    background-color: var(--background);
}

.container, header {
    background-color: var(--background);
}

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: var(--background);
    border-bottom: 1px solid var(--medium-blue);
}

.header-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
}

.theme-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--medium-blue);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s ease;
}

.theme-btn:hover {
    transform: scale(1.1);
    background-color: var(--dark-blue);
}

.archive-btn, .new-chat-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--medium-blue);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s ease;
}

.archive-btn:hover, .new-chat-btn:hover {
    transform: scale(1.1);
    background-color: var(--dark-blue);
}

h1 {
    color: var(--dark-blue);
}

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

select, button, textarea {
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid var(--medium-blue);
    outline: none;
}

select {
    background-color: var(--background);
    color: var(--text);
    min-width: 200px;
}

#model-select {
    max-width: 300px;
}

select option {
    max-width: 400px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 6px 12px;
    font-size: 0.85em;
}

select optgroup {
    font-weight: bold;
    color: var(--dark-blue);
    font-size: 0.8em;
}

select optgroup option {
    padding-left: 20px;
}

button {
    background-color: var(--medium-blue);
    color: var(--white);
    cursor: pointer;
    border: none;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--dark-blue);
}

#refresh-models {
    padding: 8px 10px;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin: 20px 0;
    overflow: hidden;
}

#chat-display {
    flex: 1;
    overflow-y: auto;
    padding: 15px;
    background-color: var(--light-gray);
    border-radius: 8px;
    margin-bottom: 20px;
}

.message {
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 8px;
    max-width: 80%;
    word-wrap: break-word;
    color: var(--text);
}

.user-message {
    background-color: var(--medium-blue);
    color: var(--white);
    align-self: flex-end;
    margin-left: auto;
}

.bot-message {
    background-color: var(--white);
    border: 1px solid var(--medium-gray);
    align-self: flex-start;
}

.input-area {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

textarea {
    resize: none;
    height: 80px;
    padding: 12px;
    font-size: 16px;
    background-color: var(--background);
    color: var(--text);
}

.button-group {
    display: flex;
    gap: 10px;
}

#send-button {
    flex: 1;
    background-color: var(--medium-blue);
}

#clear-button {
    background-color: var(--coral-red);
}

footer {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--medium-gray);
    color: var(--dark-gray);
}

.legal-links {
    margin-top: 10px;
    font-size: 0.9em;
}

.legal-links a {
    color: var(--medium-blue);
    text-decoration: none;
    transition: color 0.2s;
    margin: 0 5px;
}

.legal-links a:hover {
    color: var(--dark-blue);
    text-decoration: underline;
}

/* Legal dialog styles */
.legal-dialog {
    width: 600px;
    max-width: 90%;
    max-height: 80vh;
}

.legal-content {
    max-height: 60vh;
    overflow-y: auto;
    margin-bottom: 20px;
    padding-right: 10px;
}

.legal-content h3 {
    margin-top: 20px;
    margin-bottom: 10px;
    color: var(--dark-blue);
}

.legal-content p, .legal-content ul {
    margin-bottom: 15px;
    line-height: 1.5;
}

.legal-content ul {
    padding-left: 20px;
}

.dark-mode .legal-dialog {
    background-color: var(--dark-blue);
    color: var(--text);
}

.dark-mode .legal-links a {
    color: var(--light-blue);
}

.dark-mode .legal-links a:hover {
    color: var(--white);
}

/* Dialog styles */
.dialog {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.dialog.active {
    display: flex;
}

.dialog-content {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    width: 400px;
    max-width: 90%;
}

.dialog h2 {
    color: var(--dark-blue);
    margin-bottom: 15px;
}

.dialog p {
    margin-bottom: 20px;
}

.dialog input {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid var(--medium-blue);
    border-radius: 4px;
}

.warning-box {
    background-color: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
    padding: 12px;
    margin-bottom: 20px;
    border-radius: 4px;
    font-size: 0.9em;
    line-height: 1.4;
}

.dark-mode .warning-box {
    background-color: #2c2a1e;
    border-color: #4d4639;
    color: #e0d3a3;
}

.dialog-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--medium-blue);
    animation: spin 1s ease-in-out infinite;
    margin-left: 10px;
}

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

/* Responsive design */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .model-selector {
        width: 100%;
    }
    
    select {
        flex: 1;
    }
    
    .archive-panel {
        width: 90%;
        left: 5%;
        right: 5%;
    }
}

/* Archive Panel Styles */
.archive-panel {
    display: none;
    position: absolute;
    top: 80px;
    right: 20px;
    width: 300px;
    max-height: 500px;
    background-color: var(--background);
    border: 1px solid var(--medium-blue);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    overflow: hidden;
    padding: 15px;
}

.archive-panel h2 {
    margin-top: 0;
    color: var(--text);
    font-size: 18px;
    border-bottom: 1px solid var(--medium-blue);
    padding-bottom: 10px;
}

.archive-list {
    max-height: 400px;
    overflow-y: auto;
}

.archive-item {
    padding: 10px;
    border-bottom: 1px solid var(--medium-gray);
    cursor: pointer;
    transition: background-color 0.2s;
}

.archive-item:hover {
    background-color: var(--light-blue);
}

.archive-item.empty {
    color: var(--dark-gray);
    font-style: italic;
    cursor: default;
}

.archive-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
}

.archive-item-date {
    font-size: 12px;
    color: var(--dark-gray);
}

.archive-item-preview {
    font-size: 14px;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.archive-delete-btn {
    background: none;
    border: none;
    color: var(--coral-red);
    cursor: pointer;
    font-size: 14px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.archive-delete-btn:hover {
    opacity: 1;
}

/* Dark mode specific styles */
.dark-mode .archive-panel {
    background-color: var(--dark-blue);
    border-color: var(--medium-blue);
}

.dark-mode .archive-item:hover {
    background-color: var(--dark-highlight);
}

/* Responsive design */
@media (max-width: 768px) {
    .archive-panel {
        width: 90%;
        left: 5%;
        right: 5%;
    }
}

#chat-display {
    background-color: var(--background) !important;
}

/* Dark mode header fixes */
.dark-mode header h1,
.dark-mode .model-selector label {
    color: var(--text) !important;
}

.dark-mode .model-selector select {
    background-color: var(--dark-blue);
    color: var(--text);
    border-color: var(--medium-blue);
}

/* Explizite Styles für Dark Mode Select */
.dark-select {
    background-color: #333 !important;
    color: white !important;
}

.dark-select option {
    background-color: #333 !important;
    color: white !important;
}

/* Webkit-spezifische Styles (Chrome, Safari) */
.dark-select::-webkit-listbox {
    background-color: #333 !important;
    color: white !important;
}

/* Firefox-spezifische Styles */
.dark-select option:checked {
    background-color: #555 !important;
    color: white !important;
}

/* IE/Edge-spezifische Styles */
.dark-select::-ms-expand {
    background-color: #333 !important;
    color: white !important;
}