/* ==========================================
   Components - UI Elements
   ========================================== */

/* ==========================================
   Buttons
   ========================================== */

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-main);
}

.btn-icon:active {
    transform: scale(0.95);
}

.btn-icon.btn-primary {
    background: var(--brand-primary);
    color: white;
}

.btn-icon.btn-primary:hover {
    background: var(--brand-primary-hover);
    color: white;
}

.btn-icon.active {
    color: var(--brand-primary);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

.btn-primary {
    background: var(--brand-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary:active {
    transform: scale(0.98);
}

.btn-full {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-surface);
    border: 1px dashed var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-md);
}

.btn-full:hover {
    background: var(--bg-hover);
    border-style: solid;
}

/* ==========================================
   Messages
   ========================================== */

.message {
    display: flex;
    flex-direction: column;
    max-width: 95%;
    animation: fadeInUp 0.3s ease;
    margin-bottom: var(--spacing-md);
}

.message-user {
    align-self: flex-end;
    align-items: flex-end;
}

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

.message-content {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    word-wrap: break-word;
    overflow-wrap: break-word;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: justify;
    text-justify: inter-word;
}

/* Hide avatars as per original spec */
.message-avatar {
    display: none;
}

.message-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    width: 100%;
}

.message-attachments {
    margin-top: var(--spacing-xs);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
}

.message-attachment audio,
.message-attachment video {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, 0.1);
}

.audio-attachment,
.video-attachment {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.message-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--spacing-xs);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-xs);
    gap: var(--spacing-sm);
}

.message-timestamp {
    font-size: 0.65rem;
    opacity: 0.5;
    white-space: nowrap;
}

.tts-triple-btn {
    position: relative;
    transition: all var(--transition-fast);
}

.tts-triple-btn:active {
    transform: scale(0.9);
}

.message-timestamp {
    font-size: 0.7rem;
    opacity: 0.6;
    align-self: flex-end;
    margin-top: 2px;
}

/* Message Actions */
.message-actions {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.message:hover .message-actions {
    opacity: 1;
}

.message-actions .btn-icon {
    width: 28px;
    height: 28px;
}

.message-actions .btn-icon svg {
    width: 14px;
    height: 14px;
}

/* Message Attachments - Grid Layout */
.message-attachments {
    display: grid;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    width: 100%;
    /* Default fallback */
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

/* Single attachment: larger presentation */
.message-attachments[data-count="1"] {
    grid-template-columns: 1fr;
    max-width: 300px; /* Constrain single image */
}

/* Two or more: Strict 2-column grid as requested */
.message-attachments:not([data-count="1"]) {
    grid-template-columns: repeat(2, 1fr);
}

.message-attachment {
    width: 100%;
    /* Remove fixed max dimensions to let Grid control size */
    max-width: none; 
    max-height: 250px; /* Cap height to prevent ultra-tall images */
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    background: rgba(0,0,0,0.2);
    aspect-ratio: 1; /* Force square ratio for cleaner grid */
    position: relative;
}

/* Relax aspect ratio for single images */
.message-attachments[data-count="1"] .message-attachment {
    aspect-ratio: auto;
    max-height: 400px;
}

.message-attachment img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Streaming Indicator */
.streaming-cursor {
    display: inline-block;
    width: 8px;
    height: 16px;
    background: var(--brand-primary);
    margin-left: 2px;
    animation: blink 1s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

/* ==========================================
   Inputs
   ========================================== */

.input-text {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.input-text:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px var(--brand-primary-glow);
}

/* ==========================================
   Toggle Switch
   ========================================== */

.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    cursor: pointer;
}

.toggle-row input[type="checkbox"] {
    display: none;
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--bg-hover);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.toggle-row input[type="checkbox"]:checked+.toggle-switch {
    background: var(--brand-primary);
}

.toggle-row input[type="checkbox"]:checked+.toggle-switch::after {
    transform: translateX(20px);
}

/* ==========================================
   API Keys List
   ========================================== */

.api-keys-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.api-key-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
}

.api-key-masked {
    font-family: monospace;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.api-key-input-group {
    display: flex;
    gap: var(--spacing-sm);
}

/* ==========================================
   Sessions List
   ========================================== */

/* ==========================================
   Sessions List
   ========================================== */

.sessions-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.session-item {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    gap: var(--spacing-sm);
}

.session-item:hover {
    background: var(--bg-hover);
    border-color: var(--brand-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.session-item.active {
    background: var(--brand-primary-glow);
    border-color: var(--brand-primary);
}

.session-info {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.session-icon {
    color: var(--brand-primary);
    margin-top: 2px;
    flex-shrink: 0;
}

.session-details {
    flex: 1;
    min-width: 0;
}

.session-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-main);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.session-meta {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-top: 4px;
    display: block;
}

.session-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-xs);
    border-top: 1px solid var(--border-subtle);
    padding-top: var(--spacing-sm);
}

.session-footer .btn-icon {
    width: 32px;
    height: 32px;
}

.session-footer .btn-icon svg {
    width: 14px;
    height: 14px;
}

.session-rename-input {
    width: 100%;
    background: var(--bg-elevated);
    border: 1px solid var(--brand-primary);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    padding: 2px 4px;
    font-size: var(--font-size-sm);
    font-family: inherit;
    outline: none;
}

/* ==========================================
   Settings Sections
   ========================================== */

.settings-section {
    margin-bottom: var(--spacing-lg);
}

.settings-section h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-sm);
}

.settings-help-text {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-xs);
}

.external-link {
    color: var(--brand-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.external-link:hover {
    color: var(--brand-primary-hover);
    text-decoration: underline;
}

.api-key-input-group {
    display: flex;
    gap: var(--spacing-sm);
    width: 100%;
}

.api-key-input-group .input-text {
    flex: 1;
}

/* ==========================================
   Attachments Preview
   ========================================== */

.attachment-preview-item {
    position: relative;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background: var(--bg-hover);
    border: 1px solid var(--border-default);
    overflow: hidden;
    animation: scaleIn 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    flex-shrink: 0;
    cursor: default;
    box-shadow: var(--shadow-sm);
}

.attachment-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.attachment-preview-item:hover img {
    transform: scale(1.1);
}

.attachment-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    border: none;
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-fast);
    z-index: 2;
}

.attachment-preview-item:hover .attachment-remove {
    opacity: 1;
}

.attachment-remove:hover {
    background: var(--error);
    transform: scale(1.1);
}

.attachment-remove svg {
    width: 12px;
    height: 12px;
}

.attachment-file-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--spacing-xs);
    text-align: center;
}

.attachment-file-info .icon {
    font-size: 24px;
    margin-bottom: 2px;
}

.attachment-file-name {
    font-size: 8px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    width: 100%;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Recording State Animation */
@keyframes pulsar {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.7;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.btn-icon.recording {
    animation: pulsar 1.5s infinite ease-in-out;
    color: var(--brand-danger, #ff4d4f) !important;
}

/* Multimodal Attachment Selector Overlay */
.attachment-selector-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 2000;
    backdrop-filter: blur(4px);
}

/* Multimodal Attachment Selector Menu */
.attachment-selector-menu {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 400px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    z-index: 2001;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.selector-option {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-size: 1rem;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
}

.selector-option:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--brand-primary);
}