:root {
    --bg-color: #343541;
    --chat-bg: #444654;
    --text-color: #ececf1;
    --border-color: #565869;
    --primary-color: #10a37f;
    --hover-color: #2a2b32;
    --input-bg: #40414f;
    --sidebar-bg: #202123;
    --published-color: #10a37f;
    --unpublished-color: #f7b731;
    --archived-color: #fa8231;
    --danger-color: #ff6b6b;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Söhne', 'Segoe UI', sans-serif;
    margin: 0;
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    padding: 10px;
    border-right: 1px solid #4d4d4f;
}

.new-chat-btn {
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: background 0.2s;
    color: white;
    text-decoration: none;
    margin-bottom: 20px;
}

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

.history-list {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.history-section-title {
    font-size: 0.75em;
    font-weight: bold;
    color: #8e8ea0;
    padding: 10px 10px 5px 10px;
    text-transform: uppercase;
}

.history-item {
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.2s;
}

.history-item:hover {
    background-color: var(--hover-color);
}

.history-item-content {
    display: flex;
    align-items: center;
    gap: 10px;
    overflow: hidden;
    flex-grow: 1;
}

.quiz-status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Context Menu */
.history-actions {
    position: relative;
    padding: 5px;
    color: #8e8ea0;
    border-radius: 4px;
}

.history-actions:hover {
    background-color: rgba(255,255,255,0.1);
    color: white;
}

.context-menu {
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--chat-bg);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    padding: 5px 0;
    z-index: 1000;
    min-width: 120px;
    display: none;
}

.context-menu.show {
    display: block;
}

.context-menu-item {
    padding: 8px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9em;
    color: var(--text-color);
}

.context-menu-item:hover {
    background-color: var(--input-bg);
}

.context-menu-item.delete {
    color: var(--danger-color);
}

/* Main Chat / Wizard */
.main-chat {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    height: 100vh;
}

.step-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    gap: 10px;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #8e8ea0;
    position: relative;
    transition: all 0.3s ease;
}

.step.active { color: var(--primary-color); }
.step.completed { color: var(--primary-color); }

.step-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--chat-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 5px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

.step.active .step-icon {
    border-color: var(--primary-color);
    background-color: rgba(16, 163, 127, 0.1);
    transform: scale(1.1);
    animation: pulse 2s infinite;
}

.step.completed .step-icon {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.step-label {
    font-size: 0.85rem;
    font-weight: 500;
}

.step-line {
    width: 40px;
    height: 2px;
    background-color: var(--border-color);
    margin-top: -15px;
    transition: background-color 0.3s;
}

.step.completed + .step-line {
    background-color: var(--primary-color);
}

/* Wizard Container */
.wizard-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.wizard-step {
    width: 100%;
    max-width: 800px;
    display: none;
    animation: fadeIn 0.2s ease;
}

.wizard-step.active { display: block; }

/* Upload Area */
.upload-dropzone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 60px 40px;
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    transition: all 0.2s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.upload-dropzone:hover, .upload-dropzone.dragover {
    border-color: var(--primary-color);
    background: rgba(16, 163, 127, 0.08);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.upload-icon-large {
    font-size: 4em;
    color: var(--border-color);
    margin-bottom: 10px;
    transition: color 0.3s;
}

.upload-dropzone:hover .upload-icon-large {
    color: var(--primary-color);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(2px);
    animation: fadeIn 0.3s ease;
}

.modal.hidden { display: none; }

.modal-content {
    background: var(--chat-bg);
    padding: 20px;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.close-btn {
    background: none;
    border: none;
    color: #aaa;
    font-size: 1.5em;
    cursor: pointer;
}

.close-btn:hover { color: white; }

/* Status Colors */
.status-published { background-color: var(--published-color); }
.status-unpublished { background-color: var(--unpublished-color); }
.status-archived { background-color: var(--archived-color); }
.status-draft { background-color: #6c757d; }

/* Helpers */
.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: background 0.2s;
}

.btn-primary:hover { background-color: #0d8a6a; }

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

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

/* Animations */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 163, 127, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(16, 163, 127, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 163, 127, 0); }
}
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.help-section {
    margin-bottom: 25px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

input[type="text"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 1rem;
    box-sizing: border-box;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.model-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23ececf1%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 0.65em auto;
    padding-right: 2.5rem;
}

/* Sidebar Footer */
.sidebar-footer {
    margin-top: auto;
    padding: 15px;
    border-top: 1px solid var(--border-color);
    background: var(--sidebar-bg);
}

.footer-btn {
    width: 100%;
    border: none;
    margin-bottom: 8px;
    background: transparent;
    color: var(--text-color);
    justify-content: flex-start;
    padding: 10px;
    transition: all 0.2s;
}

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

.help-btn {
    color: #4db6ac;
}

.help-btn:hover {
    background: rgba(77, 182, 172, 0.1);
    color: #4db6ac;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
    position: absolute;
    top: 15px;
    left: 15px;
    z-index: 50;
    transition: color 0.2s;
}

.mobile-menu-btn:hover {
    color: var(--primary-color);
}

/* Mobile Overlay */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 900;
    opacity: 0;
    transition: opacity 0.3s;
    backdrop-filter: blur(2px);
}

.mobile-overlay.active {
    display: block;
    opacity: 1;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .mobile-menu-btn { display: block; }
    
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        height: 100%;
        z-index: 1000;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        width: 260px;
        box-shadow: 2px 0 15px rgba(0,0,0,0.5);
    }
    
    .sidebar.open { left: 0; }

    .main-chat {
        width: 100%;
    }

    .step-label { display: none; }
    
    .step-line { 
        width: 20px; 
        flex-grow: 0;
    }
    
    .step-indicator { 
        padding: 15px 10px; 
        justify-content: center;
        gap: 5px;
    }
    
    .step-icon {
        width: 28px;
        height: 28px;
        font-size: 0.8em;
    }
    
    .step.active .step-icon {
        transform: scale(1.1);
    }

    .wizard-step { 
        padding: 0 15px; 
    }
    
    .upload-dropzone { 
        padding: 40px 20px; 
    }
    
    .upload-icon-large { 
        font-size: 3em; 
    }
    
    .btn-large {
        width: 100%;
        padding: 15px;
    }

    .modal-content { 
        width: 95% !important; 
        margin: 20px auto; 
        padding: 15px;
    }
    
    /* Adjust logs and raw content modals */
    #logModalContent { font-size: 0.8em; }
    
    /* Hide some history details on very small screens */
    .history-item-content > div:last-child {
        max-width: 180px;
    }
}