body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #1e1e1e;
    color: #d4d4d4;
    margin: 0;
    display: flex;
    justify-content: center;
    height: 100vh;
}

.container {
    width: 100%;
    max-width: 1000px;
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: #252526;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

/* --- Header --- */
header {
    padding: 15px 20px;
    border-bottom: 1px solid #3e3e42;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #2d2d30;
    gap: 20px;
    flex-wrap: wrap;
}

.header-left h1 {
    margin: 0;
    font-size: 1.2rem;
    color: #fff;
}

.status-indicator {
    font-size: 0.8rem;
    margin-top: 5px;
    color: #4ec9b0;
}

.controls-panel {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

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

/* --- Inputs & Buttons --- */
#model-path-input {
    background-color: #3e3e42;
    border: 1px solid #555;
    color: #fff;
    padding: 8px 12px;
    border-radius: 4px;
    width: 300px;
    font-size: 0.9rem;
}

#model-path-input:focus {
    border-color: #007acc;
    outline: none;
}

#model-path-input:disabled {
    background-color: #333;
    color: #888;
    cursor: not-allowed;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: opacity 0.2s;
}

.btn:hover:not(:disabled) {
    opacity: 0.9;
}

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

.btn-primary { background-color: #0e639c; color: white; }
.btn-secondary { background-color: #cca511; color: #111; }
.btn-danger { background-color: #ce4e4e; color: white; }

/* --- Chat --- */
#chat-window {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    padding: 10px 15px;
    border-radius: 8px;
    max-width: 80%;
    line-height: 1.5;
    word-wrap: break-word;
}

.message.user { align-self: flex-end; background-color: #0e639c; color: white; }
.message.bot { align-self: flex-start; background-color: #3e3e42; }
.message.system { align-self: center; font-size: 0.85rem; color: #888; text-align: center; }

/* --- Loader --- */
.loader span {
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: #fff;
    border-radius: 50%;
    margin: 0 2px;
    animation: bounce 1.4s infinite ease-in-out both;
}
.loader span:nth-child(1) { animation-delay: -0.32s; }
.loader span:nth-child(2) { animation-delay: -0.16s; }
@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

/* --- Input Area --- */
.input-area {
    padding: 20px;
    border-top: 1px solid #3e3e42;
    display: flex;
    gap: 10px;
    background-color: #2d2d30;
}

#user-input {
    flex: 1;
    background-color: #1e1e1e;
    border: 1px solid #3e3e42;
    color: white;
    padding: 10px;
    border-radius: 4px;
    resize: none;
    outline: none;
}

#user-input:focus { border-color: #007acc; }
#user-input:disabled { background-color: #333; cursor: not-allowed; }

#send-btn {
    padding: 0 24px;
    background-color: #0e639c;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}
#send-btn:hover { background-color: #1177bb; }
/* --- Автодополнение --- */
.model-controls {
    position: relative;
    width: 100%;
    display: flex;
    gap: 10px;
    align-items: center;
}

.model-controls > div:first-child {
    flex: 1;
    display: flex;
    align-items: center;
}

.suggestions-list {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #2d2d30;
    border: 1px solid #3e3e42;
    border-top: none;
    border-radius: 0 0 4px 4px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    list-style: none;
    padding: 0;
    margin: 0;
}

.suggestion-item {
    padding: 8px 12px;
    cursor: pointer;
    color: #d4d4d4;
    font-size: 0.9rem;
    border-bottom: 1px solid #3e3e42;
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover {
    background-color: #0e639c;
    color: white;
}

.suggestions-list::-webkit-scrollbar {
    width: 8px;
}
.suggestions-list::-webkit-scrollbar-track {
    background: #1e1e1e;
}
.suggestions-list::-webkit-scrollbar-thumb {
    background: #555;
    border-radius: 4px;
}