.settings-backdrop {
    position: fixed; inset: 0; z-index: 49;
    background: rgba(0,0,0,0.45); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}
.settings-backdrop.show { opacity: 1; visibility: visible; pointer-events: auto; }

.chat-settings-backdrop {
    position: fixed; inset: 0; z-index: 49;
    background: rgba(0,0,0,0.45); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}
.chat-settings-backdrop.show { opacity: 1; visibility: visible; pointer-events: auto; }

.chat-settings-panel {
    position: fixed; top: 24px; left: 24px; right: 24px; bottom: 24px;
    display: flex; flex-direction: column; gap: 0; padding: 0;
    background: #fff; border-radius: 20px; overflow-y: auto;
    opacity: 0; transform: translateY(12px) scale(0.97);
    transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s ease;
    visibility: hidden; pointer-events: none;
    z-index: 60; box-shadow: 0 25px 80px rgba(0,0,0,0.3);
    width: auto; height: auto; margin: 0;
}
.chat-settings-panel.show {
    opacity: 1; transform: translateY(0) scale(1);
    visibility: visible; pointer-events: auto;
}
.chat-settings-panel .settings-section:last-child { margin-bottom: 28px; }
.chat-settings-panel .range-wrapper {
    padding: 8px 0;
}
.chat-settings-panel input[type="range"] {
    -webkit-appearance: none; appearance: none;
    width: 100%; height: 6px;
    background: #ddd; border-radius: 3px;
    outline: none; cursor: pointer;
}
.chat-settings-panel input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 20px; height: 20px;
    border-radius: 50%; background: #000;
    cursor: pointer; border: 2px solid #fff;
    box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

.settings-panel {
    position: fixed; top: 24px; left: 24px; right: 24px; bottom: 24px;
    display: flex; flex-direction: column; gap: 0; padding: 0;
    background: #fff; border-radius: 20px; overflow-y: auto;
    opacity: 0; transform: translateY(12px) scale(0.97);
    transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.25s ease;
    visibility: hidden; pointer-events: none;
    z-index: 50; box-shadow: 0 25px 80px rgba(0,0,0,0.3);
    width: auto; height: auto; margin: 0;
}
.settings-panel.show {
    opacity: 1; transform: translateY(0) scale(1);
    visibility: visible; pointer-events: auto;
}

.settings-panel-header {
    position: sticky; top: 0; z-index: 2;
    display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
    padding: 24px 28px 12px; background: #fff; border-bottom: 1px solid #eee; margin-bottom: 20px;
}
.settings-eyebrow { display: block; color: var(--text-secondary); font-size: 11px; font-weight: 700; letter-spacing: 1.6px; text-transform: uppercase; margin-bottom: 5px; }
.settings-panel-header h2 { font-size: 32px; line-height: 1; letter-spacing: -1px; }
.settings-close-btn { width: 38px; height: 38px; border: 1px solid #d8d8d8; border-radius: 50%; background: #fff; cursor: pointer; transition: var(--transition); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.settings-close-btn:hover { background: #000; border-color: #000; transform: rotate(90deg); }
.settings-close-btn svg { width: 17px; height: 17px; fill: #000; transition: var(--transition); }
.settings-close-btn:hover svg { fill: #fff; }

.settings-section { background: #fafafa; border: 1px solid #e2e2e2; border-radius: 18px; padding: 18px; display: flex; flex-direction: column; gap: 14px; margin: 0 28px 18px; }
.settings-section:last-child { margin-bottom: 28px; }
.settings-section-title { font-size: 13px; font-weight: 800; letter-spacing: 0.6px; color: #111; }
.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.settings-group label { display: block; font-size: 12px; color: var(--text-secondary); font-weight: 700; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
.settings-group input, .settings-group textarea {
    width: 100%; padding: 10px 12px; border: 1px solid #cfcfcf; border-radius: 12px; background: #fff; font-size: 13px; outline: none; transition: var(--transition); font-family: inherit;
}
.settings-group textarea { resize: vertical; min-height: 98px; line-height: 1.55; }
.settings-group input:focus, .settings-group textarea:focus { border-color: #000; box-shadow: 0 0 0 3px rgba(0,0,0,0.08); }
.native-select { display: none; }

.custom-select { position: relative; width: 100%; }
.custom-select-trigger {
    width: 100%; min-height: 42px; padding: 10px 12px; border: 1px solid #cfcfcf; border-radius: 12px; background: #fff;
    display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; color: #111; font: inherit; font-size: 13px; text-align: left; transition: var(--transition);
}
.custom-select-trigger span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.custom-select-trigger svg { width: 18px; height: 18px; fill: #555; flex-shrink: 0; transition: transform 0.2s ease; }
.custom-select.open .custom-select-trigger, .custom-select-trigger:hover { border-color: #000; box-shadow: 0 0 0 3px rgba(0,0,0,0.07); }
.custom-select.open .custom-select-trigger svg { transform: rotate(180deg); }
.custom-select-menu {
    position: absolute; left: 0; right: 0; top: calc(100% + 6px); max-height: 230px; overflow-y: auto; padding: 6px;
    background: rgba(255,255,255,0.98); border: 1px solid rgba(0,0,0,0.12); border-radius: 14px; box-shadow: 0 18px 48px rgba(0,0,0,0.16);
    opacity: 0; visibility: hidden; transform: translateY(-6px) scale(0.98); transform-origin: top; transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease; z-index: 40;
}
.custom-select.open .custom-select-menu { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.custom-select-option { width: 100%; border: none; border-radius: 10px; background: transparent; color: #222; cursor: pointer; display: block; font: inherit; font-size: 13px; padding: 9px 10px; text-align: left; transition: background 0.16s ease, color 0.16s ease; }
.custom-select-option:hover, .custom-select-option.highlighted { background: #f0f0f0; }
.custom-select-option.active { background: #000; color: #fff; }
.custom-select-option.active.highlighted { background: #222; }
.custom-select-option:focus { outline: 2px solid #000; outline-offset: -2px; }

.btn-outline {
    width: 100%; padding: 10px; font-size: 12px; border: 1px solid #000; border-radius: 12px;
    background: transparent; cursor: pointer; transition: var(--transition); color: #000; font-weight: 600;
}
.btn-outline:hover { background: #000; color: #fff; }

.data-actions { display: flex; gap: 8px; margin-top: 5px; }
.data-actions button { flex: 1; padding: 8px; font-size: 12px; border: 1px solid #ccc; border-radius: var(--radius-md); background: white; cursor: pointer; transition: var(--transition); font-weight: 500; }
.data-actions button:hover { background: #eee; border-color: #999; }


.toggle-container {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}
.toggle-container input[type="checkbox"] {
    display: none;
}
.toggle-container .toggle-label {
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    cursor: pointer;
    user-select: none;
    font-size: 13px;
    color: #333;
    text-transform: none;
    letter-spacing: normal;
    margin-bottom: 0;
}
.toggle-container .toggle-text {
    font-size: 13px;
    color: #333;
}
.toggle-container .toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: #ccc;
    border-radius: 12px;
    transition: background 0.3s;
    flex-shrink: 0;
}
.toggle-container .toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    transition: transform 0.3s;
}
.toggle-container input[type="checkbox"]:checked + .toggle-label .toggle-switch {
    background: #000;
}
.toggle-container input[type="checkbox"]:checked + .toggle-label .toggle-switch::after {
    transform: translateX(20px);
}