:root {
    --primary-color: #1e88e5; 
    --secondary-color: #0d47a1; 
    --accent-color: #42a5f5;
    --background-color: #e3f2fd; 
    --text-color: #263238;
    --light-gray: #bbdefb; 
    --border-color: #ff0000; /* Changed to red as per requirements */
    --success-color: #43a047;
    --error-color: #e53935;
    --warning-color: #ffb300;
    --empty-area-color: #0d47a1; /* Darker blue for empty areas */
    --input-bg-color: #e1f5fe; 
    --panel-bg-color: #e3f2fd;
    --transition-time: 0.3s;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    font-size: 12px;
    border-radius: 0 !important; /* No rounded edges anywhere */
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.4;
}

/* Add 1px red borders to all elements */
input, select, button, textarea, .chat-section, .message, 
.model-item, .empty-chat-message, .action-button, 
.panel-header, .panel-content, #chat-container, 
.chat-header, .chat-messages, .chat-input-area {
    border: 1px solid var(--border-color);
}

.screen {
    display: none;
    min-height: 100vh;
}

.screen.active {
    display: block;
}

input[type="text"],
input[type="password"],
select,
textarea {
    padding: 4px 6px;
    border: 1px solid var(--border-color);
    font-size: 12px;
    background-color: var(--input-bg-color);
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--border-color);
}

.participant-name {
    width: 100px; /* Sized appropriately as per requirements */
}

.participant-language {
    width: 80px; /* Properly sized dropdown */
}

#api-key {
    width: 200px; /* Appropriately sized */
}

#multiple-participants {
    width: 100%;
    resize: vertical;
    background-color: var(--input-bg-color);
}

.input-help {
    font-size: 10px;
    color: var(--text-color);
    margin: 2px 0 5px;
}

button {
    padding: 3px 6px;
    background-color: var(--accent-color);
    color: white;
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-size: 12px;
}

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

.hidden {
    display: none;
}

.participant-entry {
    display: flex;
    gap: 5px;
    margin-bottom: 5px;
    align-items: center;
    flex-wrap: wrap;
}

.participant-entry p {
    width: 100%;
    margin-top: 5px;
    margin-bottom: 2px;
}

.remove-participant {
    background-color: var(--error-color);
    width: 20px;
    height: 20px;
    padding: 0;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

#models-list {
    max-height: 180px;
    overflow-y: auto;
    margin-top: 5px;
    border: 1px solid var(--border-color);
    background-color: var(--empty-area-color);
}

.model-item,
.model-item .model-name,
.model-item .model-info,
#models-list * {
    font-size: 12px !important;
}

.model-item {
    padding: 4px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
}

.model-item:hover {
    background-color: var(--light-gray);
}

.model-item.selected {
    background-color: var(--accent-color);
    color: white;
}

.model-item .model-name {
    font-weight: bold;
}

.model-info {
    display: flex;
    justify-content: space-between;
    margin-top: 2px;
    font-size: 12px;
    color: #333;
}

.filters {
    display: flex;
    gap: 5px;
    margin-bottom: 5px;
}

#model-search {
    flex: 1;
}

#model-sort {
    width: 120px; /* Properly sized dropdown */
}

#chat-container {
    display: block;
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background-color: var(--empty-area-color);
}

.chat-section {
    position: absolute;
    border: 1px solid var(--border-color);
    background-color: var(--empty-area-color);
    overflow: hidden;
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.content-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
    background-color: var(--empty-area-color);
    transform-origin: center center;
}

.chat-header {
    background-color: var(--primary-color);
    color: white;
    padding: 3px 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    min-height: 20px;
    z-index: 10;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 3px;
    background-color: var(--secondary-color);
    max-height: calc(100% - 50px);
}

.chat-input-area {
    display: flex;
    padding: 3px;
    border-top: 1px solid var(--border-color);
    background-color: var(--empty-area-color);
    min-height: 25px;
    z-index: 10;
}

.chat-input {
    flex: 1;
    padding: 3px;
    border: 1px solid var(--border-color);
    background-color: var(--input-bg-color);
}

.voice-input {
    min-width: 22px;
    min-height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-color);
    padding: 0;
    border: 1px solid var(--border-color);
    z-index: 20;
}

.voice-input.recording {
    background-color: var(--error-color);
    animation: pulse 1s infinite;
}

.rotate-button, .voice-output-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: white;
    cursor: pointer;
    font-size: 12px;
    min-width: 20px;
    min-height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
}

.voice-output-toggle {
    margin-right: 2px;
}

.rotate-button, .voice-input, .voice-output-toggle {
    min-width: 22px !important;
    min-height: 22px !important;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
    z-index: 20;
}

.message {
    margin-bottom: 4px;
    padding: 4px 6px;
    max-width: 85%;
    word-wrap: break-word;
    border: 1px solid var(--border-color);
    animation: message-appear 0.3s ease;
}

@keyframes message-appear {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message.received {
    background-color: var(--empty-area-color);
    align-self: flex-start;
    margin-left: 2px;
}

.message.sent {
    background-color: var(--accent-color);
    color: white;
    align-self: flex-end;
    margin-right: 2px;
}

.message .sender {
    font-weight: bold;
    margin-bottom: 2px;
}

.message .timestamp {
    font-size: 9px;
    text-align: right;
    opacity: 0.7;
    margin-top: 2px;
}

.action-button {
    position: fixed;
    width: 36px;
    height: 36px;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    border: 1px solid var(--border-color);
    z-index: 100;
}

#settings-button {
    bottom: 10px;
    right: 10px;
}

#api-button {
    bottom: 10px;
    right: 50px;
}

#add-participant-button {
    bottom: 10px;
    right: 90px;
}

.side-panel {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background-color: var(--panel-bg-color);
    border-left: 1px solid var(--border-color);
    z-index: 1000;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.side-panel:not(.hidden) {
    transform: translateX(-300px);
}

.side-panel.hidden {
    transform: translateX(0);
}

.panel-header {
    background-color: var(--primary-color);
    color: white;
    padding: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.close-panel {
    background: none;
    border: 1px solid var(--border-color);
    color: white;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.panel-content {
    padding: 5px;
}

.section-header {
    font-weight: bold;
    margin-bottom: 5px;
    font-size: 12px;
}

#current-model {
    margin-top: 5px;
    padding: 4px;
    background-color: var(--empty-area-color);
    border: 1px solid var(--border-color);
}

.empty-chat-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    padding: 10px;
    background-color: var(--empty-area-color);
    border: 1px solid var(--border-color);
}

.danger-button {
    background-color: var(--error-color);
    margin-top: 8px;
    width: 100%;
}

.danger-button:hover {
    background-color: #c62828;
}

/* Animation */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .side-panel {
        width: 100%;
    }
}