/* ============================================
   Model Settings Sidebar - Clean & Minimal
   ============================================ */

:root {
    --ms-sidebar-width: 340px;
    --ms-transition: 280ms cubic-bezier(0.32, 0.72, 0, 1);
    --ms-radius: 8px;
    --ms-radius-sm: 6px;
}

/* ===================== */
/* Main container body   */
/* ===================== */
.main-container {
    flex-direction: row !important;
}

.main-container-body {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-width: 0;
    height: 100%;
    overflow: hidden;
}

/* ===================== */
/* Sidebar Container     */
/* ===================== */
.right-sidebar {
    position: relative;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    width: 0;
    height: 100%;
    background: var(--background);
    border-left: 0px solid var(--border-color);
    overflow: hidden;
    pointer-events: none;
    transition: width var(--ms-transition), border-left-width var(--ms-transition);
    will-change: width;
}

.right-sidebar.right-sidebar--visible.open {
    width: var(--ms-sidebar-width);
    border-left-width: 1px;
    pointer-events: auto;
}

/* Backdrop */
.right-sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 99;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--ms-transition);
    display: none;
}

.right-sidebar-backdrop.is-visible {
    opacity: 1;
    pointer-events: auto;
}

/* ===================== */
/* Sidebar Header        */
/* ===================== */
.right-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 0px 8px;
    min-height: var(--header-height);
    flex-shrink: 0;
    height: 50px;
}

.right-sidebar-header .chat-header-left {
    flex: 1;
    min-width: 0;
}

.right-sidebar-header .chat-header-left p {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
    letter-spacing: -0.01em;
}

/* When split-settings tabs are visible, remove the header border-bottom
   so the tabs section provides the visual separation instead */
body.split-screen-active .right-sidebar-header {
    border-bottom: none;
}

/* ===================== */
/* Sidebar Content Area  */
/* ===================== */
.right-sidebar-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0 12px 24px;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    border-top: 1px solid var(--border-color);
}

/* Scrollbar styling */
.right-sidebar-area::-webkit-scrollbar {
    width: 6px;
}

.right-sidebar-area::-webkit-scrollbar-track {
    background: transparent;
}

.right-sidebar-area::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

@media (hover: hover) and (pointer: fine) {
    .right-sidebar-area::-webkit-scrollbar-thumb:hover {
        background: var(--text-color-secondary);
    }
}

/* ===================== */
/* Loading & Empty       */
/* ===================== */
.model-settings-loading,
.model-settings-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    min-height: 140px;
    padding: 32px 16px;
    color: var(--text-color-secondary);
    font-size: 13px;
    text-align: center;
    line-height: 1.5;
}

.model-settings-loading {
    animation: ms-pulse 1.6s ease-in-out infinite;
}

/* ===================== */
/* Sections              */
/* ===================== */
.model-settings-section {
    padding: 16px 0;
}

.model-settings-section + .model-settings-section {
    border-top: 1px solid var(--border-color);
}

.model-settings-section-header {
    margin-bottom: 16px;
}

.model-settings-section-header h4 {
    margin: 0;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.model-settings-section-header p {
    margin: 4px 0 0;
    font-size: 12px;
    color: var(--text-color-secondary);
    line-height: 1.4;
    opacity: 0.8;
}

.model-settings-section-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ===================== */
/* Fields                */
/* ===================== */
.model-settings-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.model-settings-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-color);
    cursor: default;
}

.model-settings-description {
    font-size: 12px;
    color: var(--text-color-secondary);
    line-height: 1.4;
    margin: 0;
}

.model-settings-description[hidden] {
    display: none;
}

/* Toggle Fields */
.model-settings-field-toggle {
    gap: 0;
}

.model-settings-toggle-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.model-settings-toggle-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.model-settings-toggle-text .model-settings-label {
    cursor: pointer;
}

.model-settings-toggle-text .model-settings-description {
    margin: 0;
}

/* ===================== */
/* Inputs                */
/* ===================== */
.model-settings-input {
    width: 100%;
}

.model-settings-input input[type="text"],
.model-settings-input input[type="number"],
.model-settings-input input[type="date"],
.model-settings-input textarea,
.model-settings-input select {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--ms-radius);
    font-size: 13px;
    font-family: inherit;
    background: var(--background);
    color: var(--text-color);
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    box-sizing: border-box;
}

.model-settings-input input[type="text"]:focus,
.model-settings-input input[type="number"]:focus,
.model-settings-input input[type="date"]:focus,
.model-settings-input textarea:focus,
.model-settings-input select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary-color) 15%, transparent);
}

.model-settings-input input::placeholder,
.model-settings-input textarea::placeholder {
    color: var(--text-color-secondary);
    opacity: 0.6;
}

.model-settings-input textarea {
    min-height: 72px;
    resize: vertical;
    line-height: 1.5;
}

/* Number input - hide spinners */
.model-settings-input input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
}

.model-settings-input input[type="number"]::-webkit-outer-spin-button,
.model-settings-input input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Select */
.model-settings-input select {
    padding-right: 32px;
    cursor: pointer;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 14px;
}

.model-settings-input select[multiple] {
    padding: 8px;
    background-image: none;
    min-height: 80px;
}

/* Disabled states */
.model-settings-input input:disabled,
.model-settings-input textarea:disabled,
.model-settings-input select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: var(--hover, rgba(0, 0, 0, 0.02));
}

/* ===================== */
/* Multi-Select          */
/* ===================== */
.model-settings-multiselect {
    position: relative;
    width: 100%;
}

.model-settings-multiselect-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 9px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--ms-radius);
    font-size: 13px;
    font-family: inherit;
    background: var(--background);
    color: var(--text-color);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.model-settings-multiselect-trigger.placeholder {
    color: var(--text-color-secondary);
    opacity: 0.6;
}

.model-settings-multiselect-trigger:focus,
.model-settings-multiselect-trigger:focus-visible {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary-color) 15%, transparent);
}

.model-settings-multiselect-value {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.model-settings-multiselect-caret {
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    background-color: var(--text-color-secondary);
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    mask-position: center;
    mask-repeat: no-repeat;
    mask-size: contain;
    transition: transform 0.2s ease;
}

.model-settings-multiselect.open .model-settings-multiselect-caret {
    transform: rotate(180deg);
}

.model-settings-multiselect-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 50;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: var(--ms-radius);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    max-height: 200px;
    overflow-y: auto;
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.model-settings-multiselect-actions {
    display: flex;
    gap: 6px;
    padding: 8px;
    border-bottom: 1px solid var(--border-color);
}

.model-settings-multiselect-action-btn {
    flex: 1;
    padding: 6px 10px;
    font-size: 11px;
    font-weight: 500;
    font-family: inherit;
    color: var(--text-color-secondary);
    background: var(--hover, rgba(0, 0, 0, 0.03));
    border: none;
    border-radius: var(--ms-radius-sm);
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

@media (hover: hover) and (pointer: fine) {
    .model-settings-multiselect-action-btn:hover {
        background: color-mix(in srgb, var(--primary-color) 12%, transparent);
        color: var(--primary-color);
    }
}

.model-settings-multiselect-action-btn:focus,
.model-settings-multiselect-action-btn:focus-visible {
    outline: none;
    background: color-mix(in srgb, var(--primary-color) 12%, transparent);
    color: var(--primary-color);
}

.model-settings-multiselect-option {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: transparent;
    border: none;
    font-size: 13px;
    font-family: inherit;
    color: var(--text-color);
    cursor: pointer;
    text-align: left;
    transition: background-color 0.1s ease;
}

.model-settings-multiselect-option:focus, .model-settings-multiselect-option.keyboard-focus {
    outline: none;
    background: var(--hover, rgba(0, 0, 0, 0.03));
}

@media (hover: hover) and (pointer: fine) {
    .model-settings-multiselect-option:hover {
        outline: none;
        background: var(--hover, rgba(0, 0, 0, 0.03));
    }
}

.model-settings-multiselect-check {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.model-settings-multiselect-option.selected .model-settings-multiselect-check {
    border-color: var(--primary-color);
    background-color: var(--primary-color);
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 16 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3.5 8.5L6.5 11.5L12.5 5.5' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 10px;
}

.model-settings-multiselect-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.model-settings-multiselect-empty {
    padding: 16px 12px;
    font-size: 13px;
    color: var(--text-color-secondary);
    text-align: center;
}

.model-settings-multiselect-native {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
}

.model-settings-multiselect.disabled .model-settings-multiselect-trigger {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===================== */
/* Presets Container     */
/* ===================== */
.presets-container {
    padding: 12px;
    flex-shrink: 0;
    border-top: 1px solid var(--border-color)
}

.presets-container[hidden] {
    display: none;
}

.presets-select-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.presets-dropdown {
    position: relative;
    flex: 1;
    min-width: 0;
}

.presets-dropdown-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--ms-radius);
    background: var(--background);
    color: var(--text-color);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

@media (hover: hover) and (pointer: fine) {
    .presets-dropdown-trigger:hover {
        border-color: var(--primary-color);
    }
}

.presets-dropdown-trigger:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary-color) 15%, transparent);
}

.presets-dropdown-label {
    flex: 1;
    min-width: 0;
    text-align: left;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.presets-dropdown-caret {
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.presets-dropdown.open .presets-dropdown-caret {
    transform: rotate(180deg);
}

.presets-dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 50;
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: var(--ms-radius);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    max-height: 220px;
    overflow-y: auto;
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.presets-dropdown-list {
    padding: 4px 0;
}

.presets-dropdown-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 10px 12px;
    cursor: pointer;
    transition: background-color 0.1s ease;
}

@media (hover: hover) and (pointer: fine) {
    .presets-dropdown-item:hover {
        background: var(--hover, rgba(0, 0, 0, 0.03));
    }
}

.presets-dropdown-item.active {
    background: color-mix(in srgb, var(--primary-color) 10%, transparent);
}

.presets-dropdown-item-name {
    flex: 1;
    min-width: 0;
    font-size: 13px;
    color: var(--text-color);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.presets-dropdown-item-delete {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: var(--text-color-secondary);
    border-radius: var(--ms-radius-sm);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.1s ease, background-color 0.1s ease, color 0.1s ease;
}

@media (hover: hover) and (pointer: fine) {
    .presets-dropdown-item:hover .presets-dropdown-item-delete {
        opacity: 1;
    }
}

@media (hover: hover) and (pointer: fine) {
    .presets-dropdown-item-delete:hover {
        background: rgba(239, 68, 68, 0.1);
        color: #ef4444;
    }
}

.presets-save-btn {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1px solid var(--border-color);
    border-radius: var(--ms-radius);
    background: var(--background);
    color: var(--text-color-secondary);
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease;
}

@media (hover: hover) and (pointer: fine) {
    .presets-save-btn:hover {
        border-color: var(--primary-color);
        color: var(--primary-color);
    }
}

.presets-save-btn:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary-color) 15%, transparent);
}

/* ===================== */
/* Preset Overlays       */
/* ===================== */
.preset-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.preset-overlay.open {
    display: flex;
    opacity: 1;
}

.preset-overlay-content {
    width: 100%;
    max-width: 380px;
    padding: 24px;
    background: var(--background);
    border-radius: 12px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
}

.preset-overlay-content h3 {
    margin: 0 0 8px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-color);
    letter-spacing: -0.01em;
}

.preset-overlay-content p {
    margin: 0 0 16px;
    font-size: 13px;
    color: var(--text-color-secondary);
    line-height: 1.5;
}

.preset-overlay-content input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--ms-radius);
    font-size: 14px;
    font-family: inherit;
    background: var(--background);
    color: var(--text-color);
    box-sizing: border-box;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.preset-overlay-content input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary-color) 15%, transparent);
}

.preset-overlay-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.preset-overlay-btn {
    padding: 10px 18px;
    border: none;
    border-radius: var(--ms-radius);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: background-color 0.15s ease, opacity 0.15s ease;
}

.preset-overlay-btn.cancel {
    background: var(--hover, rgba(0, 0, 0, 0.05));
    color: var(--text-color);
}

@media (hover: hover) and (pointer: fine) {
    .preset-overlay-btn.cancel:hover {
        opacity: 0.8;
    }
}

.preset-overlay-btn.confirm {
    background: var(--primary-color);
    color: white;
}

@media (hover: hover) and (pointer: fine) {
    .preset-overlay-btn.confirm:hover {
        opacity: 0.9;
    }
}

.preset-overlay-btn.danger {
    background: #ef4444;
    color: white;
}

@media (hover: hover) and (pointer: fine) {
    .preset-overlay-btn.danger:hover {
        background: #dc2626;
    }
}

/* ===================== */
/* Mobile Responsive     */
/* ===================== */
@media (max-width: 768px) {
    .right-sidebar {
        position: fixed;
        top: 0;
        right: 0;
        z-index: 100;
        width: 0;
        height: 100vh;
        height: 100dvh;
        max-width: 100vw;
        border-left: none;
        transform: none;
    }

    .right-sidebar.right-sidebar--visible.open {
        width: 100vw;
        border-left-width: 0;
    }

    .right-sidebar-backdrop {
        display: block;
    }

    .right-sidebar-header {
        padding: 8px;
        padding-top: calc(8px + env(safe-area-inset-top, 0px));
    }

    .right-sidebar-area {
        padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px));
    }

    .presets-container {
        padding-bottom: 12px;
    }

    .model-settings-section {
        padding: 14px 0;
    }

    .model-settings-section-body {
        gap: 14px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    :root {
        --ms-sidebar-width: 320px;
    }
}

@media (min-width: 769px) {
    .right-sidebar-backdrop {
        display: none;
    }
}

/* Hover states - pointer devices only */
@media (hover: hover) and (pointer: fine) {
    .model-settings-input input[type="text"]:hover, .model-settings-input input[type="number"]:hover, .model-settings-input input[type="date"]:hover, .model-settings-input textarea:hover, .model-settings-input select:hover, .model-settings-multiselect-trigger:hover {
        border-color: color-mix(in srgb, var(--primary-color) 50%, var(--border-color));
    }
}