/* ==========================================================================
   NTE AI Tutor — floating button, side drawer, inline card and full-page app
   Plain CSS, no build step. Prefix: .nte-ait
   Brand tokens follow the NewToEd site (gradient buttons, #4d80ff accent,
   #192335 headings, #6b7385 body, #e6e3f1 borders, Euclid Circular).
   Dark mode: body.active-dark-mode (frontend layout) / body.dark-only (backend).
   ========================================================================== */

/* --------------------------------------------------------------------------
   Tokens
   -------------------------------------------------------------------------- */
.nte-ait,
.nte-ait-fab {
    --ait-grad: linear-gradient(135deg, #2f57ef 0%, #1a3bc7 100%);
    --ait-grad-soft: linear-gradient(135deg, rgba(47, 87, 239, 0.1) 0%, rgba(77, 128, 255, 0.04) 100%);
    --ait-primary: var(--color-primary, #4d80ff);
    --ait-primary-deep: #2f57ef;
    --ait-primary-soft: #eef3ff;
    --ait-primary-glow: rgba(47, 87, 239, 0.28);
    --ait-page: #f6f8ff;
    --ait-surface: #ffffff;
    --ait-surface-2: #f6f8ff;
    --ait-hover: #eef2fb;
    --ait-text: #192335;
    --ait-muted: #6b7385;
    --ait-border: #e6e3f1;
    --ait-border-strong: #d6dcef;
    --ait-user-bubble: #eef3ff;
    --ait-user-text: #192335;
    --ait-code-bg: rgba(25, 35, 53, 0.06);
    --ait-amber: #f59e0b;
    --ait-amber-soft: #fff7e6;
    --ait-amber-text: #9a5b00;
    --ait-red: #e5484d;
    --ait-red-soft: #fff1f2;
    --ait-red-text: #b42318;
    --ait-green: #16a34a;
    --ait-green-soft: #ecfdf3;
    --ait-green-text: #15803d;
    --ait-radius: 16px;
    --ait-radius-lg: 18px;
    --ait-radius-sm: 12px;
    --ait-radius-xs: 8px;
    --ait-shadow: 0 12px 32px rgba(25, 35, 53, 0.08);
    --ait-shadow-hover: 0 16px 40px rgba(25, 35, 53, 0.12);
    --ait-shadow-drawer: -12px 0 48px rgba(25, 35, 53, 0.16);
    --ait-font: var(--font-primary, "Euclid Circular A"), "Euclid Circular A", "Euclid Circular", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --ait-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --ait-ease: 180ms cubic-bezier(0.2, 0.8, 0.2, 1);
    --ait-z: 100000;
}

body.active-dark-mode .nte-ait,
body.active-dark-mode .nte-ait-fab,
body.dark-only .nte-ait,
body.dark-only .nte-ait-fab {
    --ait-grad-soft: linear-gradient(135deg, rgba(77, 128, 255, 0.18) 0%, rgba(47, 87, 239, 0.06) 100%);
    --ait-primary-soft: rgba(77, 128, 255, 0.16);
    --ait-page: var(--color-darker, #192335);
    --ait-surface: #1e2a44;
    --ait-surface-2: #223052;
    --ait-hover: #27365a;
    --ait-text: #e2e8f0;
    --ait-muted: #94a3b8;
    --ait-border: #2d3a55;
    --ait-border-strong: #3a4a6b;
    --ait-user-bubble: #243253;
    --ait-user-text: #e2e8f0;
    --ait-code-bg: rgba(255, 255, 255, 0.08);
    --ait-amber-soft: rgba(245, 158, 11, 0.14);
    --ait-amber-text: #fbbf24;
    --ait-red-soft: rgba(229, 72, 77, 0.14);
    --ait-red-text: #fca5a5;
    --ait-green-soft: rgba(22, 163, 74, 0.16);
    --ait-green-text: #86efac;
    --ait-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
    --ait-shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.45);
    --ait-shadow-drawer: -12px 0 48px rgba(0, 0, 0, 0.55);
}

/* --------------------------------------------------------------------------
   Floating button (left of the canned chatbot bubble at right:30px)
   -------------------------------------------------------------------------- */
.nte-ait-fab {
    position: fixed;
    bottom: 30px;
    right: 110px;
    z-index: 9999;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    height: 48px;
    padding: 0 20px 0 16px;
    border: 0;
    border-radius: 999px;
    background: var(--ait-grad);
    color: #fff;
    font: 600 14.5px/1 var(--ait-font);
    letter-spacing: 0.01em;
    cursor: pointer;
    box-shadow: 0 8px 24px var(--ait-primary-glow);
    transition: transform var(--ait-ease), box-shadow var(--ait-ease), opacity var(--ait-ease);
    -webkit-tap-highlight-color: transparent;
}

.nte-ait-fab:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px var(--ait-primary-glow);
    color: #fff;
}

.nte-ait-fab:focus-visible {
    outline: 3px solid rgba(77, 128, 255, 0.5);
    outline-offset: 3px;
}

.nte-ait-fab[aria-expanded="true"] {
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
}

.nte-ait-fab__icon {
    flex: 0 0 auto;
    filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.15));
}

@media (max-width: 575.98px) {
    .nte-ait-fab {
        bottom: 110px;
        right: 30px;
        height: 44px;
        padding: 0 16px 0 14px;
        font-size: 13.5px;
    }

    /* Keep the theme's back-to-top button clear of the pill on small screens. */
    body:has(.nte-ait-fab) .rbt-progress-parent {
        bottom: 166px !important;
    }
}

/* --------------------------------------------------------------------------
   Root shell
   -------------------------------------------------------------------------- */
.nte-ait {
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    background: var(--ait-surface);
    color: var(--ait-text);
    font: 400 14.5px/1.55 var(--ait-font);
    text-align: left;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.nte-ait *,
.nte-ait *::before,
.nte-ait *::after {
    box-sizing: border-box;
}

.nte-ait[hidden] {
    display: none !important;
}

.nte-ait button,
.nte-ait input,
.nte-ait select,
.nte-ait textarea {
    font-family: var(--ait-font);
}

.nte-ait button {
    line-height: 1.2;
    text-transform: none;
    letter-spacing: normal;
    -webkit-tap-highlight-color: transparent;
}

.nte-ait h2,
.nte-ait h3,
.nte-ait p {
    font-family: var(--ait-font);
}

.nte-ait :focus-visible {
    outline: 2px solid var(--ait-primary);
    outline-offset: 2px;
    border-radius: 6px;
}

/* Drawer */
.nte-ait--drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    height: 100%;
    width: 440px;
    max-width: 100vw;
    z-index: var(--ait-z);
    box-shadow: var(--ait-shadow-drawer);
    border-left: 1px solid var(--ait-border);
    transform: translateX(104%);
    transition: transform 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
    will-change: transform;
}

.nte-ait--drawer.is-open {
    transform: translateX(0);
}

/* Inline dashboard card */
.nte-ait--page {
    position: relative;
    width: 100%;
    min-height: 560px;
    height: calc(100vh - 180px);
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius-lg);
    box-shadow: var(--ait-shadow);
    overflow: hidden;
}

@media (max-width: 575.98px) {
    .nte-ait--drawer {
        width: 100%;
        border-left: 0;
    }

    .nte-ait--page {
        height: calc(100vh - 120px);
        min-height: 480px;
    }
}

/* Main column wrapper (always present) */
.nte-ait__main {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
    min-width: 0;
    background: var(--ait-surface);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.nte-ait__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px 12px 16px;
    min-height: 64px;
    border-bottom: 1px solid var(--ait-border);
    background: var(--ait-surface);
    flex: 0 0 auto;
}

.nte-ait__brand {
    display: flex;
    align-items: center;
    gap: 11px;
    min-width: 0;
}

.nte-ait__logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: var(--ait-grad);
    color: #fff;
    flex: 0 0 auto;
    box-shadow: 0 6px 16px var(--ait-primary-glow);
}

.nte-ait__brand-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.nte-ait__title {
    margin: 0;
    font: 700 15.5px/1.2 var(--ait-font);
    color: var(--ait-text);
    letter-spacing: -0.01em;
    white-space: nowrap;
}

/* The 440px drawer has less room: drop the subtitle and the meter bar there. */
.nte-ait--drawer .nte-ait__subtitle,
.nte-ait--drawer .nte-ait__meter-bar {
    display: none;
}

.nte-ait--drawer .nte-ait__meter {
    padding: 0 9px;
    margin-right: 2px;
}

.nte-ait--drawer .nte-ait__icon-btn {
    width: 34px;
    height: 34px;
}

.nte-ait--drawer .nte-ait__actions {
    gap: 2px;
}

.nte-ait__subtitle {
    font-size: 11.5px;
    color: var(--ait-muted);
    white-space: nowrap;
}

.nte-ait__actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 0 0 auto;
}

.nte-ait__icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: var(--ait-muted);
    cursor: pointer;
    transition: background-color var(--ait-ease), color var(--ait-ease), transform var(--ait-ease);
}

a.nte-ait__icon-btn {
    text-decoration: none;
}

.nte-ait__icon-btn:hover {
    background: var(--ait-hover);
    color: var(--ait-text);
}

.nte-ait__icon-btn:active {
    transform: scale(0.96);
}

.nte-ait__icon-btn[aria-pressed="true"] {
    background: var(--ait-primary-soft);
    color: var(--ait-primary-deep);
}

body.active-dark-mode .nte-ait__icon-btn[aria-pressed="true"],
body.dark-only .nte-ait__icon-btn[aria-pressed="true"] {
    color: #9db9ff;
}

/* Allowance pill */
.nte-ait__meter {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 30px;
    padding: 0 11px;
    margin-right: 4px;
    border: 1px solid var(--ait-border);
    border-radius: 999px;
    background: var(--ait-surface-2);
    font: 600 12px/1 var(--ait-font);
    color: var(--ait-muted);
    white-space: nowrap;
    transition: border-color var(--ait-ease), color var(--ait-ease);
}

.nte-ait__meter[hidden] {
    display: none;
}

.nte-ait__meter-bar {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 4px;
    border-radius: 999px;
    background: var(--ait-border-strong);
    overflow: hidden;
}

.nte-ait__meter-fill {
    position: absolute;
    inset: 0 auto 0 0;
    width: 0;
    border-radius: 999px;
    background: var(--ait-grad);
    transition: width 300ms ease, background-color 300ms ease;
}

.nte-ait__meter.is-warn {
    border-color: rgba(245, 158, 11, 0.45);
    color: var(--ait-amber-text);
    background: var(--ait-amber-soft);
}

.nte-ait__meter.is-warn .nte-ait__meter-fill {
    background: var(--ait-amber);
}

.nte-ait__meter.is-full {
    border-color: rgba(229, 72, 77, 0.45);
    color: var(--ait-red-text);
    background: var(--ait-red-soft);
}

.nte-ait__meter.is-full .nte-ait__meter-fill {
    background: var(--ait-red);
}

/* Warnings banner */
.nte-ait__warnings {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1px;
    border-bottom: 1px solid var(--ait-border);
}

.nte-ait__warnings[hidden] {
    display: none;
}

.nte-ait__warning {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: 13px;
    color: var(--ait-amber-text);
    background: var(--ait-amber-soft);
}

.nte-ait__warning-icon {
    display: inline-flex;
    flex: 0 0 auto;
    color: var(--ait-amber);
}

.nte-ait__warning-text {
    flex: 1 1 auto;
}

.nte-ait__warning a {
    color: inherit;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
    white-space: nowrap;
}

/* --------------------------------------------------------------------------
   Body, view, panels
   -------------------------------------------------------------------------- */
.nte-ait__body {
    position: relative;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: var(--ait-page);
}

.nte-ait__view {
    flex: 1 1 auto;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 20px 18px 24px;
}

.nte-ait__view::-webkit-scrollbar,
.nte-ait__panel::-webkit-scrollbar,
.nte-ait__sidebar-list::-webkit-scrollbar {
    width: 6px;
}

.nte-ait__view::-webkit-scrollbar-thumb,
.nte-ait__panel::-webkit-scrollbar-thumb,
.nte-ait__sidebar-list::-webkit-scrollbar-thumb {
    background: var(--ait-border-strong);
    border-radius: 10px;
}

.nte-ait__panel {
    position: absolute;
    inset: 0;
    z-index: 2;
    overflow-y: auto;
    background: var(--ait-page);
    padding: 16px 18px 20px;
}

.nte-ait__panel[hidden] {
    display: none;
}

.nte-ait__panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 14px;
}

.nte-ait__panel-title {
    margin: 0;
    font: 700 16px/1.3 var(--ait-font);
    color: var(--ait-text);
    letter-spacing: -0.01em;
}

/* --------------------------------------------------------------------------
   Generic controls
   -------------------------------------------------------------------------- */
.nte-ait__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 40px;
    padding: 9px 18px;
    border: 1px solid var(--ait-border);
    border-radius: 999px;
    background: var(--ait-surface);
    color: var(--ait-text);
    font: 600 13.5px/1.2 var(--ait-font);
    cursor: pointer;
    text-decoration: none;
    transition: background-color var(--ait-ease), border-color var(--ait-ease), color var(--ait-ease), transform var(--ait-ease), box-shadow var(--ait-ease);
}

.nte-ait__btn:hover {
    background: var(--ait-hover);
    border-color: var(--ait-border-strong);
    color: var(--ait-text);
}

.nte-ait__btn:active {
    transform: translateY(1px);
}

.nte-ait__btn:disabled,
.nte-ait__btn[aria-disabled="true"] {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.nte-ait__btn--primary {
    border-color: transparent;
    background: var(--ait-grad);
    color: #fff;
    box-shadow: 0 6px 16px var(--ait-primary-glow);
}

.nte-ait__btn--primary:hover {
    background: var(--ait-grad);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 10px 24px var(--ait-primary-glow);
    transform: translateY(-1px);
}

.nte-ait__btn--ghost {
    border-color: transparent;
    background: transparent;
    color: var(--ait-muted);
    box-shadow: none;
}

.nte-ait__btn--ghost:hover {
    background: var(--ait-hover);
    border-color: transparent;
}

.nte-ait__btn--sm {
    min-height: 32px;
    padding: 5px 12px;
    font-size: 12.5px;
}

.nte-ait__btn--block {
    width: 100%;
}

.nte-ait__link {
    color: var(--ait-primary-deep);
    font-weight: 600;
    text-decoration: underline;
    cursor: pointer;
    background: none;
    border: 0;
    padding: 0;
    font: inherit;
}

.nte-ait__field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 14px;
}

.nte-ait__label {
    font-size: 11.5px;
    font-weight: 700;
    color: var(--ait-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.nte-ait__input,
.nte-ait__select,
.nte-ait__textarea {
    width: 100%;
    min-height: 42px;
    padding: 9px 14px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius-sm);
    background: var(--ait-surface);
    color: var(--ait-text);
    font: 400 14px/1.4 var(--ait-font);
    outline: none;
    transition: border-color var(--ait-ease), box-shadow var(--ait-ease);
    -webkit-appearance: none;
    appearance: none;
}

.nte-ait__select {
    padding-right: 34px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7385' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 14px;
    cursor: pointer;
}

.nte-ait__select[multiple] {
    background-image: none;
    padding-right: 14px;
    min-height: 130px;
}

.nte-ait__select option {
    color: #192335;
    background: #fff;
}

.nte-ait__input:focus,
.nte-ait__select:focus,
.nte-ait__textarea:focus {
    border-color: var(--ait-primary);
    box-shadow: 0 0 0 4px var(--ait-primary-soft);
    outline: none;
}

.nte-ait__input::placeholder,
.nte-ait__textarea::placeholder {
    color: var(--ait-muted);
    opacity: 0.8;
}

.nte-ait__row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nte-ait__row > * {
    flex: 1 1 0;
    min-width: 0;
}

.nte-ait__hint {
    font-size: 12px;
    color: var(--ait-muted);
}

.nte-ait__hint--center {
    text-align: center;
    margin-top: 10px;
}

.nte-ait__muted {
    color: var(--ait-muted);
}

.nte-ait__spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--ait-border-strong);
    border-top-color: var(--ait-primary);
    border-radius: 50%;
    animation: nte-ait-spin 0.8s linear infinite;
    vertical-align: middle;
}

@keyframes nte-ait-spin {
    to {
        transform: rotate(360deg);
    }
}

.nte-ait__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 36px 0;
    color: var(--ait-muted);
    font-size: 13px;
}

.nte-ait__empty {
    text-align: center;
    color: var(--ait-muted);
    padding: 32px 12px;
    font-size: 13.5px;
}

.nte-ait__card {
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius);
    background: var(--ait-surface);
    padding: 18px;
    box-shadow: var(--ait-shadow);
}

.nte-ait__card + .nte-ait__card {
    margin-top: 12px;
}

.nte-ait__card-title {
    margin: 0 0 6px;
    font: 700 15px/1.3 var(--ait-font);
    color: var(--ait-text);
}

.nte-ait__card-text {
    margin: 0;
    color: var(--ait-muted);
    font-size: 13.5px;
}

.nte-ait__section-title {
    margin: 18px 0 10px;
    font: 700 11.5px/1.2 var(--ait-font);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ait-muted);
}

.nte-ait__stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nte-ait__sr {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skeletons */
.nte-ait__skel {
    display: block;
    border-radius: 8px;
    background: linear-gradient(90deg, var(--ait-hover) 0%, var(--ait-surface-2) 40%, var(--ait-hover) 80%);
    background-size: 200% 100%;
    animation: nte-ait-shimmer 1.4s ease-in-out infinite;
}

@keyframes nte-ait-shimmer {
    0% {
        background-position: 100% 0;
    }

    100% {
        background-position: -100% 0;
    }
}

.nte-ait__skeleton--list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 4px 2px;
}

.nte-ait__skel-row {
    display: flex;
    flex-direction: column;
    gap: 7px;
    padding: 10px 10px;
}

.nte-ait__skel-line {
    height: 12px;
}

.nte-ait__skel-line--thin {
    height: 9px;
    opacity: 0.7;
}

.nte-ait__skeleton--thread {
    display: flex;
    flex-direction: column;
    gap: 22px;
    padding: 8px 0;
}

.nte-ait__skel-msg {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.nte-ait__skel-msg--user {
    justify-content: flex-end;
}

.nte-ait__skel-msg--user .nte-ait__skel-lines {
    align-items: flex-end;
    max-width: 70%;
}

.nte-ait__skel-msg--user .nte-ait__skel-line {
    height: 40px;
    border-radius: 16px 16px 6px 16px;
}

.nte-ait__skel-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    flex: 0 0 auto;
}

.nte-ait__skel-lines {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: 9px;
    padding-top: 4px;
}

/* --------------------------------------------------------------------------
   Home
   -------------------------------------------------------------------------- */
.nte-ait__hero {
    text-align: center;
    padding: 6px 0 18px;
}

.nte-ait__hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px 5px 10px;
    margin-bottom: 14px;
    border-radius: 999px;
    background: var(--ait-primary-soft);
    color: var(--ait-primary-deep);
    font: 600 12px/1 var(--ait-font);
    letter-spacing: 0.02em;
}

body.active-dark-mode .nte-ait__hero-badge,
body.dark-only .nte-ait__hero-badge {
    color: #9db9ff;
}

.nte-ait__greeting {
    margin: 0 0 6px;
    font: 700 28px/1.15 var(--ait-font);
    color: var(--ait-text);
    letter-spacing: -0.02em;
}

.nte-ait__grad-text {
    background: linear-gradient(135deg, #2f57ef 0%, #4d80ff 60%, #7aa2ff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.nte-ait__question {
    margin: 0;
    color: var(--ait-muted);
    font-size: 15px;
}

.nte-ait__continue {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    text-align: left;
    padding: 14px 16px;
    margin: 0 0 16px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius);
    background: var(--ait-surface);
    color: var(--ait-text);
    cursor: pointer;
    font: inherit;
    box-shadow: var(--ait-shadow);
    transition: border-color var(--ait-ease), box-shadow var(--ait-ease), transform var(--ait-ease);
}

.nte-ait__continue:hover {
    border-color: rgba(77, 128, 255, 0.5);
    box-shadow: var(--ait-shadow-hover);
    transform: translateY(-1px);
}

.nte-ait__continue-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--ait-grad);
    color: #fff;
    flex: 0 0 auto;
    box-shadow: 0 6px 14px var(--ait-primary-glow);
}

.nte-ait__continue-body {
    min-width: 0;
    flex: 1 1 auto;
}

.nte-ait__continue-kicker,
.nte-ait__continue-title,
.nte-ait__continue-meta {
    display: block;
}

.nte-ait__continue-kicker {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ait-primary-deep);
    margin-bottom: 2px;
}

body.active-dark-mode .nte-ait__continue-kicker,
body.dark-only .nte-ait__continue-kicker {
    color: #9db9ff;
}

.nte-ait__continue-title {
    font-weight: 700;
    font-size: 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__continue-meta {
    font-size: 12.5px;
    color: var(--ait-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Ask box (composer-style on the home screen) */
.nte-ait__ask {
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius);
    padding: 14px 14px 12px;
    background: var(--ait-surface);
    box-shadow: var(--ait-shadow);
    transition: border-color var(--ait-ease), box-shadow var(--ait-ease);
}

.nte-ait__ask:focus-within {
    border-color: var(--ait-primary);
    box-shadow: 0 0 0 4px var(--ait-primary-soft), var(--ait-shadow-hover);
}

.nte-ait__ask-input {
    display: block;
    width: 100%;
    min-height: 48px;
    max-height: 160px;
    padding: 6px 4px;
    border: 0;
    background: transparent;
    color: var(--ait-text);
    font: 400 15.5px/1.5 var(--ait-font);
    resize: none;
    outline: none;
}

.nte-ait__ask-input::placeholder {
    color: var(--ait-muted);
}

.nte-ait__ask-input:focus-visible {
    outline: none;
}

.nte-ait__ask-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--ait-border);
}

.nte-ait__pillrow {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    min-width: 0;
    flex: 1 1 auto;
}

.nte-ait__pill-field {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 34px;
    padding: 0 6px 0 11px;
    border-radius: 999px;
    background: var(--ait-surface-2);
    border: 1px solid var(--ait-border);
    min-width: 0;
    max-width: 100%;
    transition: border-color var(--ait-ease);
}

.nte-ait__pill-field:focus-within {
    border-color: var(--ait-primary);
}

.nte-ait__pill-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--ait-muted);
    white-space: nowrap;
}

.nte-ait__pill-field .nte-ait__select,
.nte-ait__pill-field .nte-ait__input {
    min-height: 30px;
    height: 30px;
    padding: 0 26px 0 6px;
    border: 0;
    background-color: transparent;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    box-shadow: none;
    width: auto;
    max-width: 180px;
}

.nte-ait__pill-field .nte-ait__input {
    padding-right: 8px;
    width: 150px;
}

.nte-ait__pill-field .nte-ait__select:focus,
.nte-ait__pill-field .nte-ait__input:focus {
    box-shadow: none;
    border: 0;
}

/* Mode tiles */
.nte-ait__section-title--modes {
    text-align: center;
    margin-top: 26px;
}

.nte-ait__modes {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.nte-ait__mode {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius);
    background: var(--ait-surface);
    color: var(--ait-text);
    text-align: left;
    cursor: pointer;
    font: inherit;
    box-shadow: var(--ait-shadow);
    transition: border-color var(--ait-ease), box-shadow var(--ait-ease), transform var(--ait-ease);
}

.nte-ait__mode:hover {
    border-color: rgba(77, 128, 255, 0.5);
    box-shadow: var(--ait-shadow-hover);
    transform: translateY(-2px);
}

.nte-ait__mode:active {
    transform: translateY(0);
}

.nte-ait__mode-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--ait-grad);
    color: #fff;
    flex: 0 0 auto;
    box-shadow: 0 6px 14px var(--ait-primary-glow);
}

.nte-ait__mode-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.nte-ait__mode-label {
    font-weight: 700;
    font-size: 14px;
    line-height: 1.25;
}

.nte-ait__mode-desc {
    font-size: 12.5px;
    line-height: 1.4;
    color: var(--ait-muted);
}

/* --------------------------------------------------------------------------
   Thread
   -------------------------------------------------------------------------- */
.nte-ait__thread-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin: -4px 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--ait-border);
}

.nte-ait__thread-title {
    margin: 0;
    font: 700 15px/1.3 var(--ait-font);
    color: var(--ait-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__thread-meta {
    font-size: 12.5px;
    color: var(--ait-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__messages {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.nte-ait__msg {
    position: relative;
    display: flex;
    flex-direction: column;
    max-width: 100%;
}

.nte-ait__msg.is-new {
    animation: nte-ait-rise 220ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

@keyframes nte-ait-rise {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* User: right-aligned soft bubble */
.nte-ait__msg--user {
    align-self: flex-end;
    align-items: flex-end;
    max-width: 82%;
}

.nte-ait__msg--user .nte-ait__bubble {
    padding: 11px 16px;
    border-radius: 18px 18px 6px 18px;
    background: var(--ait-user-bubble);
    color: var(--ait-user-text);
    font-size: 15px;
    line-height: 1.55;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow-wrap: anywhere;
}

/* Assistant: avatar + full-width text, no bubble */
.nte-ait__msg--assistant {
    flex-direction: row;
    align-items: flex-start;
    gap: 12px;
    align-self: stretch;
}

.nte-ait__msg-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    margin-top: 2px;
    border-radius: 50%;
    background: var(--ait-grad);
    color: #fff;
    flex: 0 0 auto;
    box-shadow: 0 4px 10px var(--ait-primary-glow);
}

.nte-ait__msg-body {
    flex: 1 1 auto;
    min-width: 0;
}

.nte-ait__msg--assistant .nte-ait__bubble {
    color: var(--ait-text);
    font-size: 15.5px;
    line-height: 1.65;
    word-wrap: break-word;
    overflow-wrap: anywhere;
    padding: 3px 0 0;
}

.nte-ait__bubble p {
    margin: 0 0 12px;
}

.nte-ait__bubble p:last-child,
.nte-ait__bubble ul:last-child,
.nte-ait__bubble ol:last-child,
.nte-ait__bubble pre:last-child {
    margin-bottom: 0;
}

.nte-ait__bubble ul,
.nte-ait__bubble ol {
    margin: 0 0 12px;
    padding-left: 22px;
}

.nte-ait__bubble li {
    margin: 4px 0;
}

.nte-ait__bubble ul li {
    list-style: disc;
}

.nte-ait__bubble ol li {
    list-style: decimal;
}

.nte-ait__bubble strong {
    font-weight: 700;
    color: var(--ait-text);
}

.nte-ait__bubble code {
    font: 13px/1.4 var(--ait-mono);
    padding: 2px 6px;
    border-radius: 6px;
    background: var(--ait-code-bg);
    color: inherit;
}

.nte-ait__bubble pre {
    margin: 0 0 12px;
    padding: 12px 14px;
    border-radius: 12px;
    background: var(--ait-code-bg);
    border: 1px solid var(--ait-border);
    overflow-x: auto;
    font: 13px/1.5 var(--ait-mono);
    white-space: pre;
}

.nte-ait__bubble pre code {
    padding: 0;
    background: none;
}

/* Timestamp on hover */
.nte-ait__msg-meta {
    margin-top: 5px;
    font-size: 11.5px;
    color: var(--ait-muted);
}

.nte-ait__msg-time {
    opacity: 0;
    transition: opacity var(--ait-ease);
}

.nte-ait__msg:hover .nte-ait__msg-time,
.nte-ait__msg:focus-within .nte-ait__msg-time {
    opacity: 1;
}

.nte-ait__stopped {
    font-style: italic;
}

/* Streaming caret + thinking dots */
.nte-ait__msg--assistant.is-streaming .nte-ait__bubble::after {
    content: "";
    display: inline-block;
    width: 8px;
    height: 17px;
    margin-left: 3px;
    vertical-align: -3px;
    border-radius: 2px;
    background: var(--ait-grad);
    animation: nte-ait-blink 1s steps(2, start) infinite;
}

.nte-ait__msg--assistant.is-streaming .nte-ait__typing + ::after,
.nte-ait__msg--assistant.is-streaming .nte-ait__bubble:has(.nte-ait__typing)::after {
    display: none;
}

@keyframes nte-ait-blink {
    to {
        visibility: hidden;
    }
}

.nte-ait__typing {
    display: inline-flex;
    gap: 5px;
    align-items: center;
    height: 24px;
    padding: 0 2px;
}

.nte-ait__typing span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ait-primary);
    animation: nte-ait-bounce 1.2s infinite ease-in-out;
}

.nte-ait__typing span:nth-child(2) {
    animation-delay: 0.15s;
}

.nte-ait__typing span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes nte-ait-bounce {
    0%,
    80%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    40% {
        transform: translateY(-5px);
        opacity: 1;
    }
}

/* Follow-up chips: outlined pills that fill on hover */
.nte-ait__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
    padding-left: 40px;
}

.nte-ait__chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 34px;
    padding: 7px 14px;
    border: 1px solid rgba(77, 128, 255, 0.55);
    border-radius: 999px;
    background: transparent;
    color: var(--ait-primary-deep);
    font: 600 13px/1.2 var(--ait-font);
    cursor: pointer;
    transition: background-color var(--ait-ease), color var(--ait-ease), border-color var(--ait-ease), transform var(--ait-ease), box-shadow var(--ait-ease);
}

body.active-dark-mode .nte-ait__chip,
body.dark-only .nte-ait__chip {
    color: #9db9ff;
}

.nte-ait__chip:hover {
    background: var(--ait-grad);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 6px 16px var(--ait-primary-glow);
    transform: translateY(-1px);
}

.nte-ait__chip:disabled {
    opacity: 0.5;
    cursor: default;
}

/* --------------------------------------------------------------------------
   Practice / quiz cards
   -------------------------------------------------------------------------- */
.nte-ait__practice {
    margin-top: 18px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius);
    padding: 18px;
    background: var(--ait-surface);
    box-shadow: var(--ait-shadow);
    position: relative;
    overflow: hidden;
}

.nte-ait__practice::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 4px;
    background: var(--ait-grad);
}

.nte-ait__practice-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.nte-ait__practice-kicker {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font: 700 12px/1 var(--ait-font);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ait-primary-deep);
}

body.active-dark-mode .nte-ait__practice-kicker,
body.dark-only .nte-ait__practice-kicker {
    color: #9db9ff;
}

.nte-ait__practice-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 8px;
    background: var(--ait-primary-soft);
}

.nte-ait__difficulty {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11.5px;
    font-weight: 600;
    color: var(--ait-muted);
}

.nte-ait__dots {
    display: inline-flex;
    gap: 3px;
}

.nte-ait__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ait-border-strong);
}

.nte-ait__dot.is-on {
    background: var(--ait-primary);
}

.nte-ait__badge {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    background: var(--ait-primary-soft);
    color: var(--ait-primary-deep);
}

body.active-dark-mode .nte-ait__badge,
body.dark-only .nte-ait__badge {
    color: #9db9ff;
}

.nte-ait__badge--muted {
    background: var(--ait-hover);
    color: var(--ait-muted);
}

.nte-ait__badge--good {
    background: var(--ait-green-soft);
    color: var(--ait-green-text);
}

.nte-ait__badge--bad {
    background: var(--ait-red-soft);
    color: var(--ait-red-text);
}

.nte-ait__practice-q {
    margin: 0 0 14px;
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
    color: var(--ait-text);
}

.nte-ait__options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nte-ait__option {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    min-height: 48px;
    padding: 10px 14px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius-sm);
    background: var(--ait-surface-2);
    color: var(--ait-text);
    text-align: left;
    font: 500 14.5px/1.4 var(--ait-font);
    cursor: pointer;
    transition: border-color var(--ait-ease), background-color var(--ait-ease), transform var(--ait-ease), box-shadow var(--ait-ease);
}

.nte-ait__option:hover:not(:disabled) {
    border-color: rgba(77, 128, 255, 0.55);
    background: var(--ait-primary-soft);
    transform: translateY(-1px);
    box-shadow: var(--ait-shadow);
}

.nte-ait__option:disabled {
    cursor: default;
    opacity: 0.7;
}

.nte-ait__option-key {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: var(--ait-surface);
    border: 1px solid var(--ait-border);
    color: var(--ait-primary-deep);
    font-size: 13px;
    font-weight: 700;
}

body.active-dark-mode .nte-ait__option-key,
body.dark-only .nte-ait__option-key {
    color: #9db9ff;
}

.nte-ait__option-text {
    flex: 1 1 auto;
    min-width: 0;
}

.nte-ait__option-mark {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    color: #fff;
}

.nte-ait__option.is-chosen {
    border-color: var(--ait-primary);
    box-shadow: inset 0 0 0 1px var(--ait-primary);
}

.nte-ait__option.is-correct {
    border-color: var(--ait-green);
    background: var(--ait-green-soft);
    box-shadow: inset 0 0 0 1px var(--ait-green);
    opacity: 1;
}

.nte-ait__option.is-correct .nte-ait__option-key {
    background: var(--ait-green);
    border-color: var(--ait-green);
    color: #fff;
}

.nte-ait__option.is-correct .nte-ait__option-mark {
    background: var(--ait-green);
}

.nte-ait__option.is-wrong {
    border-color: var(--ait-red);
    background: var(--ait-red-soft);
    box-shadow: inset 0 0 0 1px var(--ait-red);
    opacity: 1;
}

.nte-ait__option.is-wrong .nte-ait__option-key {
    background: var(--ait-red);
    border-color: var(--ait-red);
    color: #fff;
}

.nte-ait__option.is-wrong .nte-ait__option-mark {
    background: var(--ait-red);
}

.nte-ait__result {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    margin-top: 14px;
    padding: 12px 14px;
    border-radius: var(--ait-radius-sm);
    font-size: 14px;
    line-height: 1.55;
}

.nte-ait__result-icon {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    color: #fff;
}

.nte-ait__result-body {
    flex: 1 1 auto;
    min-width: 0;
}

.nte-ait__result--good {
    background: var(--ait-green-soft);
    color: var(--ait-green-text);
}

.nte-ait__result--good .nte-ait__result-icon {
    background: var(--ait-green);
}

.nte-ait__result--bad {
    background: var(--ait-red-soft);
    color: var(--ait-red-text);
}

.nte-ait__result--bad .nte-ait__result-icon {
    background: var(--ait-red);
}

.nte-ait__result-title {
    font-weight: 700;
    margin-bottom: 2px;
}

.nte-ait__result strong {
    color: inherit;
}

/* Worked example: amber callout */
.nte-ait__worked {
    margin-top: 14px;
    border: 1px solid rgba(245, 158, 11, 0.4);
    border-radius: var(--ait-radius-sm);
    background: var(--ait-amber-soft);
    color: var(--ait-amber-text);
}

.nte-ait__worked summary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 11px 14px;
    cursor: pointer;
    font-size: 13.5px;
    font-weight: 700;
    list-style: none;
}

.nte-ait__worked summary::-webkit-details-marker {
    display: none;
}

.nte-ait__worked summary::after {
    content: "";
    margin-left: auto;
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform var(--ait-ease);
}

.nte-ait__worked[open] summary::after {
    transform: rotate(-135deg);
}

.nte-ait__worked-body {
    padding: 0 14px 14px;
    font-size: 14px;
    color: var(--ait-text);
}

.nte-ait__worked-body strong {
    color: inherit;
}

/* --------------------------------------------------------------------------
   Referral card
   -------------------------------------------------------------------------- */
.nte-ait__referral {
    margin-top: 18px;
    border: 1px solid rgba(77, 128, 255, 0.35);
    border-radius: var(--ait-radius);
    padding: 18px;
    background: var(--ait-grad-soft), var(--ait-surface);
    box-shadow: var(--ait-shadow);
}

.nte-ait__referral-text {
    margin: 0 0 14px;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--ait-text);
    line-height: 1.5;
}

.nte-ait__tutors {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 0 0 16px;
    padding: 0;
    list-style: none;
}

.nte-ait__tutor {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 12px;
    border-radius: var(--ait-radius-sm);
    background: var(--ait-surface);
    border: 1px solid var(--ait-border);
    color: inherit;
    text-decoration: none;
    transition: border-color var(--ait-ease), box-shadow var(--ait-ease), transform var(--ait-ease);
}

a.nte-ait__tutor:hover {
    border-color: rgba(77, 128, 255, 0.5);
    box-shadow: var(--ait-shadow);
    transform: translateY(-1px);
    color: inherit;
}

.nte-ait__avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--ait-grad);
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    color: #fff;
    box-shadow: 0 4px 10px var(--ait-primary-glow);
}

.nte-ait__tutor-name {
    font-weight: 700;
    font-size: 14.5px;
    line-height: 1.2;
    color: var(--ait-text);
}

.nte-ait__tutor-rate {
    font-size: 12.5px;
    color: var(--ait-muted);
    margin-top: 2px;
}

.nte-ait__referral-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

/* --------------------------------------------------------------------------
   Error card
   -------------------------------------------------------------------------- */
.nte-ait__error {
    margin-top: 16px;
    padding: 16px 18px;
    border: 1px solid rgba(229, 72, 77, 0.3);
    border-radius: var(--ait-radius);
    background: var(--ait-red-soft);
    color: var(--ait-text);
    font-size: 14px;
    line-height: 1.5;
}

.nte-ait__error-title {
    font-weight: 700;
    color: var(--ait-red-text);
    margin-bottom: 3px;
    font-size: 14.5px;
}

.nte-ait__error-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.nte-ait__error--limit {
    border-color: rgba(245, 158, 11, 0.4);
    background: var(--ait-amber-soft);
}

.nte-ait__error--limit .nte-ait__error-title {
    color: var(--ait-amber-text);
}

.nte-ait__error .nte-ait__referral {
    margin-top: 14px;
}

/* --------------------------------------------------------------------------
   Composer (floating container pinned at the bottom)
   -------------------------------------------------------------------------- */
.nte-ait__composer {
    flex: 0 0 auto;
    padding: 8px 16px 14px;
    background: linear-gradient(180deg, rgba(246, 248, 255, 0) 0%, var(--ait-page) 40%);
}

.nte-ait__composer[hidden] {
    display: none;
}

.nte-ait__composer-box {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 8px 8px 8px 16px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius);
    background: var(--ait-surface);
    box-shadow: var(--ait-shadow);
    transition: border-color var(--ait-ease), box-shadow var(--ait-ease);
}

.nte-ait__composer-box:focus-within {
    border-color: var(--ait-primary);
    box-shadow: 0 0 0 4px var(--ait-primary-soft), var(--ait-shadow-hover);
}

.nte-ait__composer-box[hidden] {
    display: none;
}

.nte-ait__composer-input {
    flex: 1 1 auto;
    min-height: 26px;
    max-height: 140px;
    padding: 7px 0;
    border: 0;
    background: transparent;
    color: var(--ait-text);
    font: 400 15px/1.5 var(--ait-font);
    resize: none;
    outline: none;
    overflow-y: auto;
}

.nte-ait__composer-input::placeholder {
    color: var(--ait-muted);
}

.nte-ait__composer-input:focus-visible {
    outline: none;
}

.nte-ait__composer-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.nte-ait__send,
.nte-ait__stop {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 0;
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--ait-ease), box-shadow var(--ait-ease), opacity var(--ait-ease);
}

.nte-ait__send {
    background: var(--ait-grad);
    color: #fff;
    box-shadow: 0 6px 16px var(--ait-primary-glow);
}

.nte-ait__send:hover:not(:disabled) {
    transform: translateY(-1px) scale(1.03);
    box-shadow: 0 10px 22px var(--ait-primary-glow);
}

.nte-ait__send:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    box-shadow: none;
}

.nte-ait__send--lg {
    width: 44px;
    height: 44px;
}

.nte-ait__stop {
    width: auto;
    padding: 0 14px;
    gap: 6px;
    border-radius: 999px;
    background: var(--ait-red);
    color: #fff;
    font: 700 12.5px/1 var(--ait-font);
    box-shadow: 0 6px 16px rgba(229, 72, 77, 0.3);
}

.nte-ait__stop[hidden],
.nte-ait__send[hidden] {
    display: none;
}

.nte-ait__composer-hint {
    margin-top: 8px;
    padding: 0 4px;
    font-size: 11.5px;
    color: var(--ait-muted);
    text-align: center;
}

.nte-ait__composer-hint[hidden] {
    display: none;
}

.nte-ait__composer-closed {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    border: 1px dashed var(--ait-border-strong);
    border-radius: var(--ait-radius);
    background: var(--ait-surface);
    font-size: 13.5px;
    color: var(--ait-muted);
}

.nte-ait__composer-closed[hidden] {
    display: none;
}

/* --------------------------------------------------------------------------
   Conversation list (history panel + full-page sidebar)
   -------------------------------------------------------------------------- */
.nte-ait__convos {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nte-ait__convo {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius-sm);
    background: var(--ait-surface);
    overflow: hidden;
    transition: border-color var(--ait-ease), background-color var(--ait-ease), box-shadow var(--ait-ease);
}

.nte-ait__convo::before {
    content: "";
    position: absolute;
    inset: 6px auto 6px 0;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--ait-grad);
    opacity: 0;
    transition: opacity var(--ait-ease);
}

.nte-ait__convo:hover {
    border-color: rgba(77, 128, 255, 0.4);
    box-shadow: var(--ait-shadow);
}

.nte-ait__convo.is-active {
    border-color: rgba(77, 128, 255, 0.4);
    background: var(--ait-primary-soft);
}

.nte-ait__convo.is-active::before {
    opacity: 1;
}

.nte-ait__convo-main {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 10px 4px 10px 14px;
    border: 0;
    background: transparent;
    color: var(--ait-text);
    text-align: left;
    font: inherit;
    cursor: pointer;
}

.nte-ait__convo-title {
    font-weight: 600;
    font-size: 13.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__convo-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    color: var(--ait-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__convo-meta .nte-ait__badge {
    padding: 2px 7px;
    font-size: 10px;
}

.nte-ait__convo-archive {
    flex: 0 0 auto;
    margin-right: 4px;
    width: 32px;
    height: 32px;
}

.nte-ait__convo.is-archived {
    opacity: 0.6;
}

/* --------------------------------------------------------------------------
   Quiz
   -------------------------------------------------------------------------- */
.nte-ait__sizes {
    display: flex;
    gap: 8px;
}

.nte-ait__size {
    flex: 1 1 0;
    min-height: 44px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius-sm);
    background: var(--ait-surface);
    color: var(--ait-text);
    font: 700 14px/1 var(--ait-font);
    cursor: pointer;
    transition: border-color var(--ait-ease), background-color var(--ait-ease), box-shadow var(--ait-ease), transform var(--ait-ease);
}

.nte-ait__size:hover:not(:disabled) {
    border-color: rgba(77, 128, 255, 0.5);
    transform: translateY(-1px);
    box-shadow: var(--ait-shadow);
}

.nte-ait__size.is-selected {
    border-color: var(--ait-primary);
    background: var(--ait-primary-soft);
    color: var(--ait-primary-deep);
    box-shadow: inset 0 0 0 1px var(--ait-primary);
}

body.active-dark-mode .nte-ait__size.is-selected,
body.dark-only .nte-ait__size.is-selected {
    color: #9db9ff;
}

.nte-ait__size:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.nte-ait__progress {
    height: 6px;
    border-radius: 999px;
    background: var(--ait-border);
    overflow: hidden;
    margin: 8px 0 16px;
}

.nte-ait__progress-fill {
    height: 100%;
    width: 0;
    background: var(--ait-grad);
    border-radius: 999px;
    transition: width 300ms ease;
}

.nte-ait__score {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 10px 0 6px;
}

.nte-ait__ring {
    position: relative;
    width: 140px;
    height: 140px;
    margin-bottom: 12px;
}

.nte-ait__ring svg {
    display: block;
    width: 140px;
    height: 140px;
}

.nte-ait__ring-bg {
    stroke: var(--ait-border);
}

.nte-ait__ring-fg {
    transition: stroke-dashoffset 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.nte-ait__ring-label {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
}

.nte-ait__ring-value {
    font: 700 30px/1 var(--ait-font);
    color: var(--ait-text);
    letter-spacing: -0.02em;
}

.nte-ait__ring-sub {
    font-size: 12px;
    color: var(--ait-muted);
}

.nte-ait__score-title {
    font: 700 20px/1.2 var(--ait-font);
    color: var(--ait-text);
    letter-spacing: -0.01em;
}

.nte-ait__score-value {
    font: 700 42px/1 var(--ait-font);
    color: var(--ait-primary-deep);
    letter-spacing: -0.02em;
}

.nte-ait__score-label {
    margin-top: 6px;
    color: var(--ait-muted);
    font-size: 13.5px;
}

.nte-ait__topics {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 6px;
}

.nte-ait__topic {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 600;
}

.nte-ait__topic--strong {
    background: var(--ait-green-soft);
    color: var(--ait-green-text);
}

.nte-ait__topic--weak {
    background: var(--ait-amber-soft);
    color: var(--ait-amber-text);
}

/* --------------------------------------------------------------------------
   Full-page chat app (page_mode + full_page)
   -------------------------------------------------------------------------- */
.nte-ait__sidebar,
.nte-ait__backdrop,
.nte-ait__menu-btn,
.nte-ait__sidebar-close {
    display: none;
}

.nte-ait--full {
    flex-direction: row;
    height: calc(100vh - var(--nte-ait-top, 0px));
    height: calc(100dvh - var(--nte-ait-top, 0px));
    min-height: 0;
    max-width: none;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    overflow: hidden;
    background: var(--ait-page);
}

.nte-ait--full .nte-ait__sidebar {
    display: flex;
    flex-direction: column;
    flex: 0 0 280px;
    width: 280px;
    min-height: 0;
    border-right: 1px solid var(--ait-border);
    background: var(--ait-grad-soft), var(--ait-surface);
}

.nte-ait__sidebar-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 16px 10px;
}

.nte-ait__sidebar-head .nte-ait__btn--primary {
    min-height: 44px;
    font-size: 14px;
    box-shadow: 0 10px 24px var(--ait-primary-glow);
}

.nte-ait__sidebar-list {
    flex: 1 1 auto;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 4px 12px 12px;
}

.nte-ait__sidebar-list .nte-ait__section-title {
    margin: 14px 6px 8px;
}

.nte-ait__sidebar-list .nte-ait__convos {
    gap: 3px;
}

.nte-ait__sidebar-list .nte-ait__convo {
    border-color: transparent;
    background: transparent;
    box-shadow: none;
}

.nte-ait__sidebar-list .nte-ait__convo:hover {
    background: var(--ait-hover);
}

.nte-ait__sidebar-list .nte-ait__convo.is-active {
    background: var(--ait-primary-soft);
}

.nte-ait__sidebar-list .nte-ait__convo-main {
    padding: 9px 4px 9px 14px;
}

.nte-ait__sidebar-list .nte-ait__convo-archive {
    opacity: 0;
}

.nte-ait__sidebar-list .nte-ait__convo:hover .nte-ait__convo-archive,
.nte-ait__sidebar-list .nte-ait__convo:focus-within .nte-ait__convo-archive {
    opacity: 1;
}

.nte-ait__sidebar-list .nte-ait__empty {
    padding: 24px 8px;
    font-size: 13px;
}

.nte-ait__sidebar-foot {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 12px;
    border-top: 1px solid var(--ait-border);
    background: var(--ait-surface);
}

.nte-ait__user {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 8px 8px 12px;
}

.nte-ait__user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--ait-grad);
    color: #fff;
    font: 700 15px/1 var(--ait-font);
    flex: 0 0 auto;
    box-shadow: 0 6px 14px var(--ait-primary-glow);
}

.nte-ait__user-text {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.nte-ait__user-name {
    font-weight: 700;
    font-size: 14px;
    color: var(--ait-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__user-sub {
    font-size: 12px;
    color: var(--ait-muted);
}

.nte-ait__sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    min-height: 40px;
    padding: 9px 10px;
    border: 0;
    border-radius: var(--ait-radius-xs);
    background: transparent;
    color: var(--ait-text);
    font: 600 13.5px/1.2 var(--ait-font);
    text-align: left;
    text-decoration: none;
    cursor: pointer;
    transition: background-color var(--ait-ease), color var(--ait-ease);
}

.nte-ait__sidebar-link:hover {
    background: var(--ait-hover);
    color: var(--ait-text);
}

.nte-ait__sidebar-link svg {
    color: var(--ait-muted);
}

/* Centred reading column (max 860px) */
.nte-ait--full .nte-ait__header {
    padding: 12px 24px;
}

.nte-ait--full .nte-ait__view {
    padding: 32px max(24px, calc((100% - 860px) / 2)) 24px;
}

.nte-ait--full .nte-ait__composer {
    padding: 8px max(16px, calc((100% - 860px) / 2)) 16px;
}

.nte-ait--full .nte-ait__warnings .nte-ait__warning {
    padding-left: max(24px, calc((100% - 860px) / 2));
    padding-right: max(24px, calc((100% - 860px) / 2));
}

.nte-ait--full .nte-ait__panel {
    padding: 24px max(24px, calc((100% - 860px) / 2));
}

.nte-ait--full .nte-ait__hero {
    padding-top: clamp(12px, 7vh, 64px);
    padding-bottom: 24px;
}

.nte-ait--full .nte-ait__greeting {
    font-size: 32px;
}

.nte-ait--full .nte-ait__question {
    font-size: 16px;
}

.nte-ait--full .nte-ait__msg--user {
    max-width: 72%;
}

.nte-ait--full .nte-ait__messages {
    gap: 24px;
}

.nte-ait--full .nte-ait__modes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* Tablet / phone: single column with slide-in sidebar */
@media (max-width: 991.98px) {
    .nte-ait--full .nte-ait__menu-btn {
        display: inline-flex;
        margin-left: -4px;
    }

    .nte-ait--full .nte-ait__sidebar {
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        z-index: 6;
        width: min(300px, 86vw);
        flex-basis: auto;
        transform: translateX(-104%);
        transition: transform 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
        box-shadow: var(--ait-shadow-hover);
        background: var(--ait-surface);
    }

    .nte-ait--full.is-sidebar-open .nte-ait__sidebar {
        transform: translateX(0);
    }

    .nte-ait--full .nte-ait__sidebar-close {
        display: inline-flex;
    }

    .nte-ait--full .nte-ait__backdrop {
        display: block;
        position: absolute;
        inset: 0;
        z-index: 5;
        background: rgba(25, 35, 53, 0.45);
        -webkit-backdrop-filter: blur(2px);
        backdrop-filter: blur(2px);
    }

    .nte-ait--full .nte-ait__backdrop[hidden] {
        display: none;
    }

    .nte-ait--full .nte-ait__header {
        padding: 10px 12px;
    }

    .nte-ait--full .nte-ait__view {
        padding: 20px 16px;
    }

    .nte-ait--full .nte-ait__composer {
        padding: 8px 12px 12px;
    }

    .nte-ait--full .nte-ait__panel {
        padding: 16px 16px 18px;
    }

    .nte-ait--full .nte-ait__msg--user {
        max-width: 86%;
    }

    .nte-ait--full .nte-ait__greeting {
        font-size: 26px;
    }

    .nte-ait--full .nte-ait__modes {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575.98px) {
    .nte-ait__greeting,
    .nte-ait--full .nte-ait__greeting {
        font-size: 24px;
    }

    .nte-ait__modes,
    .nte-ait--full .nte-ait__modes {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .nte-ait__mode {
        flex-direction: column;
        gap: 10px;
        padding: 12px;
    }

    .nte-ait__chips {
        padding-left: 0;
    }

    .nte-ait__subtitle,
    .nte-ait__meter-bar {
        display: none;
    }

    .nte-ait__meter {
        padding: 0 9px;
    }

    .nte-ait__ask-foot {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .nte-ait__pillrow {
        flex: 1 1 100%;
    }

    .nte-ait__pill-field {
        height: 36px;
    }

    .nte-ait__pill-field .nte-ait__input {
        width: 120px;
    }

    .nte-ait__send--lg {
        margin-left: auto;
    }

    /* Minimum 40px touch targets */
    .nte-ait__icon-btn,
    .nte-ait__convo-archive {
        width: 40px;
        height: 40px;
    }

    .nte-ait__chip,
    .nte-ait__btn--sm {
        min-height: 40px;
    }
}

/* --------------------------------------------------------------------------
   Motion preferences
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    .nte-ait,
    .nte-ait *,
    .nte-ait *::before,
    .nte-ait *::after,
    .nte-ait-fab {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }

    .nte-ait__msg.is-new {
        animation: none;
    }
}

/* ==========================================================================
   Tutor recommendations — one component for the sidebar rail, drawer strip,
   home row, referral card and nudge.
   ========================================================================== */
.nte-ait__avatar--initials {
    background: linear-gradient(135deg, #eef3ff 0%, #d9e4ff 100%);
    color: var(--ait-primary-deep);
    box-shadow: none;
    font-size: 14px;
    letter-spacing: 0.02em;
}

body.active-dark-mode .nte-ait__avatar--initials,
body.dark-only .nte-ait__avatar--initials {
    background: linear-gradient(135deg, rgba(77, 128, 255, 0.35) 0%, rgba(47, 87, 239, 0.2) 100%);
    color: #c7d7ff;
}

.nte-ait__avatar--sm {
    width: 36px;
    height: 36px;
    font-size: 12.5px;
}

/* Container with a gradient border */
.nte-ait__tutors-card {
    position: relative;
    border: 1px solid transparent;
    border-radius: var(--ait-radius);
    background: linear-gradient(var(--ait-surface), var(--ait-surface)) padding-box, linear-gradient(135deg, rgba(47, 87, 239, 0.55) 0%, rgba(77, 128, 255, 0.2) 60%, rgba(122, 162, 255, 0.45) 100%) border-box;
    box-shadow: var(--ait-shadow);
    padding: 16px;
    transition: box-shadow var(--ait-ease), transform var(--ait-ease);
}

.nte-ait__tutors-card:hover {
    box-shadow: var(--ait-shadow-hover);
}

.nte-ait__tutors-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 12px;
}

.nte-ait__tutors-text {
    min-width: 0;
    flex: 1 1 auto;
}

.nte-ait__tutors-title {
    display: flex;
    align-items: center;
    gap: 7px;
    font: 700 14.5px/1.3 var(--ait-font);
    color: var(--ait-text);
}

.nte-ait__tutors-spark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 7px;
    background: var(--ait-grad);
    color: #fff;
    flex: 0 0 auto;
}

.nte-ait__tutors-reason {
    margin-top: 3px;
    font-size: 12.5px;
    color: var(--ait-muted);
}

.nte-ait__tutors-close {
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
    margin: -4px -6px 0 0;
}

.nte-ait__tutors-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nte-ait__tutors-foot {
    display: flex;
    justify-content: flex-end;
    margin-top: 12px;
}

.nte-ait__tutors-seeall {
    font-size: 13px;
    text-decoration: none;
}

.nte-ait__tutors-seeall:hover {
    text-decoration: underline;
}

body.active-dark-mode .nte-ait__tutors-seeall,
body.dark-only .nte-ait__tutors-seeall,
body.active-dark-mode .nte-ait__nudge-link,
body.dark-only .nte-ait__nudge-link {
    color: #9db9ff;
}

/* Single tutor */
.nte-ait__tutor-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius-sm);
    background: var(--ait-surface-2);
    transition: border-color var(--ait-ease), box-shadow var(--ait-ease), transform var(--ait-ease);
}

.nte-ait__tutor-card:hover {
    border-color: rgba(77, 128, 255, 0.5);
    box-shadow: var(--ait-shadow);
    transform: translateY(-1px);
}

.nte-ait__tutor-body {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nte-ait__tutor-top {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.nte-ait__tutor-top .nte-ait__tutor-name {
    flex: 1 1 auto;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__rate-pill {
    flex: 0 0 auto;
    display: inline-block;
    padding: 3px 9px;
    border-radius: 999px;
    background: var(--ait-primary-soft);
    color: var(--ait-primary-deep);
    font: 700 11.5px/1.2 var(--ait-font);
    white-space: nowrap;
}

body.active-dark-mode .nte-ait__rate-pill,
body.dark-only .nte-ait__rate-pill {
    color: #9db9ff;
}

.nte-ait__tutor-subjects {
    font-size: 12.5px;
    color: var(--ait-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__tutor-next {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ait-green-text);
}

.nte-ait__tutor-cta {
    flex: 0 0 auto;
    min-height: 36px;
    padding: 6px 14px;
    box-shadow: none;
}

/* Vertical card (home row) */
.nte-ait__tutor-card--vertical {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    gap: 10px;
    padding: 18px 14px 14px;
}

.nte-ait__tutor-card--vertical .nte-ait__avatar {
    width: 56px;
    height: 56px;
    margin: 0 auto;
    font-size: 17px;
}

.nte-ait__tutor-card--vertical .nte-ait__tutor-body {
    align-items: center;
    gap: 5px;
}

.nte-ait__tutor-card--vertical .nte-ait__tutor-top {
    flex-direction: column;
    gap: 6px;
}

.nte-ait__tutor-card--vertical .nte-ait__tutor-top .nte-ait__tutor-name {
    white-space: normal;
    font-size: 15px;
}

.nte-ait__tutor-card--vertical .nte-ait__tutor-subjects {
    white-space: normal;
}

.nte-ait__tutor-card--vertical .nte-ait__tutor-cta {
    width: 100%;
    margin-top: 4px;
}

/* Home row: three vertical cards, scrollable on phones */
.nte-ait__home-tutors {
    margin-top: 22px;
}

.nte-ait__tutors-card--row .nte-ait__tutors-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

/* Drawer strip */
.nte-ait__rail {
    flex: 0 0 auto;
}

.nte-ait__rail[hidden] {
    display: none;
}

.nte-ait--full .nte-ait__rail {
    padding: 0 12px 12px;
}

.nte-ait__rail--strip {
    padding: 0 16px 6px;
}

/* Compact rail: one-line header, optional reason, horizontal snap-scroll row of ~150px cards */
.nte-ait__tutors-card--rail {
    padding: 10px 12px 8px;
    border-radius: var(--ait-radius-sm);
}

.nte-ait__tutors-head--rail {
    align-items: center;
    margin-bottom: 4px;
}

.nte-ait__tutors-head--rail .nte-ait__tutors-title {
    font-size: 13.5px;
    min-width: 0;
}

.nte-ait__tutors-head--rail .nte-ait__tutors-spark {
    width: 20px;
    height: 20px;
    border-radius: 6px;
}

.nte-ait__tutors-title-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__tutors-head--rail .nte-ait__tutors-close {
    width: 28px;
    height: 28px;
    margin: -2px -4px 0 0;
}

.nte-ait__tutors-card--rail .nte-ait__tutors-reason {
    margin: 0 0 6px;
    font-size: 12px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__tutors-scrollwrap {
    position: relative;
    margin: 0 -12px;
}

.nte-ait__tutors-scrollwrap::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 28px;
    pointer-events: none;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0), var(--ait-surface));
}

.nte-ait__tutors-scroller {
    display: flex;
    gap: 8px;
    padding: 2px 12px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.nte-ait__tutors-scroller::-webkit-scrollbar {
    display: none;
}

.nte-ait__tutor-card--compact {
    flex: 0 0 150px;
    width: 150px;
    min-width: 0;
    overflow: hidden;
    scroll-snap-align: start;
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 54px;
    padding: 7px 8px;
    border: 1px solid var(--ait-border);
    border-radius: var(--ait-radius-sm);
    background: var(--ait-surface-2);
    color: var(--ait-text);
    text-align: left;
    font: inherit;
    cursor: pointer;
}

.nte-ait__tutor-card--compact:hover:not(:disabled) {
    border-color: rgba(77, 128, 255, 0.5);
    background: var(--ait-primary-soft);
    transform: translateY(-1px);
}

.nte-ait__tutor-card--compact:disabled {
    opacity: 0.6;
    cursor: default;
}

.nte-ait__tutor-card--compact .nte-ait__tutor-body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.nte-ait__tutor-card--compact .nte-ait__tutor-name {
    display: block;
    font-size: 12.5px;
    font-weight: 700;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__tutor-card--compact .nte-ait__rate-pill {
    align-self: flex-start;
    padding: 2px 7px;
    font-size: 10.5px;
}

.nte-ait__tutor-card--compact .nte-ait__tutor-next {
    display: flex;
    gap: 4px;
    font-size: 11px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__tutor-card--compact .nte-ait__tutor-next span {
    overflow: hidden;
    text-overflow: ellipsis;
}

.nte-ait__tutors-foot--rail {
    justify-content: flex-start;
    margin-top: 6px;
}

.nte-ait__tutors-foot--rail .nte-ait__tutors-seeall {
    font-size: 12.5px;
}

/* Referral card additions */
.nte-ait__referral-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.nte-ait__referral-title {
    margin: 0;
    font: 700 15px/1.3 var(--ait-font);
    color: var(--ait-text);
}

.nte-ait__referral .nte-ait__tutors-list {
    margin-bottom: 14px;
}

.nte-ait__referral-actions .nte-ait__tutors-seeall {
    margin-left: auto;
}

/* Nudge: one-line soft bar */
.nte-ait__nudge {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    padding: 9px 8px 9px 14px;
    border: 1px solid rgba(77, 128, 255, 0.3);
    border-radius: 999px;
    background: var(--ait-grad-soft), var(--ait-surface);
    font-size: 13.5px;
    color: var(--ait-text);
}

.nte-ait__nudge-icon {
    display: inline-flex;
    color: var(--ait-primary-deep);
    flex: 0 0 auto;
}

.nte-ait__nudge-text {
    flex: 1 1 auto;
    min-width: 0;
}

.nte-ait__nudge-link {
    flex: 0 0 auto;
    white-space: nowrap;
    font-size: 13px;
}

.nte-ait__nudge-close {
    flex: 0 0 auto;
    width: 30px;
    height: 30px;
}

/* Warning banner tutor link */
.nte-ait__warning-link {
    flex: 0 0 auto;
    padding: 5px 12px;
    border: 1px solid rgba(245, 158, 11, 0.5);
    border-radius: 999px;
    background: var(--ait-surface);
    color: var(--ait-amber-text);
    font: 700 12.5px/1.2 var(--ait-font);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color var(--ait-ease), transform var(--ait-ease);
}

.nte-ait__warning-link:hover {
    background: var(--ait-amber-soft);
    transform: translateY(-1px);
}

@media (max-width: 575.98px) {
    .nte-ait__tutors-card--row .nte-ait__tutors-list {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        gap: 10px;
        padding: 2px 2px 8px;
        margin: 0 -2px;
    }

    .nte-ait__tutors-card--row .nte-ait__tutor-card {
        flex: 0 0 78%;
        scroll-snap-align: start;
    }

    .nte-ait__tutor-card {
        flex-wrap: wrap;
    }

    .nte-ait__tutor-card:not(.nte-ait__tutor-card--vertical) .nte-ait__tutor-cta {
        flex: 1 1 100%;
        min-height: 40px;
    }

    .nte-ait__nudge {
        flex-wrap: wrap;
        border-radius: var(--ait-radius-sm);
    }

    .nte-ait__tutors-close,
    .nte-ait__nudge-close {
        width: 40px;
        height: 40px;
    }

    .nte-ait__warning {
        flex-wrap: wrap;
    }
}