.prosto-assistant {
    --assistant-brand-50: #eef4ff;
    --assistant-brand-100: #dbe7ff;
    --assistant-brand-200: #bdd0ff;
    --assistant-brand-500: #496b99;
    --assistant-brand-700: #1b365d;
    --assistant-brand-800: #172c4a;
    --assistant-brand-950: #0f1b2d;
    --assistant-ink: #1f2937;
    --assistant-control-height: 3.25rem;
    --assistant-control-width: 5rem;
    --assistant-stage-height: 3.125rem;
    --assistant-stage-width: 5rem;
    flex: 0 0 auto;
    align-self: center;
    display: flex;
    height: var(--assistant-control-height);
    position: relative;
}

.prosto-assistant__toggle {
    align-items: center;
    background: linear-gradient(145deg, #fff 12%, var(--assistant-brand-50) 100%);
    border: 1px solid rgba(189, 208, 255, 0.9);
    border-radius: 999px;
    box-shadow: 0 8px 22px rgba(15, 27, 45, 0.1);
    cursor: pointer;
    display: inline-flex;
    height: var(--assistant-control-height);
    justify-content: center;
    overflow: hidden;
    padding: 0;
    position: relative;
    transition: border-color 180ms ease, box-shadow 180ms ease;
    width: var(--assistant-control-width);
}

.prosto-assistant__toggle::after {
    border: 1px solid rgba(73, 107, 153, 0.14);
    border-radius: inherit;
    content: "";
    inset: 0.18rem;
    pointer-events: none;
    position: absolute;
}

.prosto-assistant__toggle:hover {
    border-color: var(--assistant-brand-500);
    box-shadow: 0 10px 26px rgba(27, 54, 93, 0.16);
}

.prosto-assistant__toggle:focus-visible,
.prosto-assistant__close:focus-visible,
.prosto-assistant__knowledge-link:focus-visible,
.prosto-assistant__gallery button:focus-visible {
    outline: 3px solid rgba(73, 107, 153, 0.32);
    outline-offset: 3px;
}

.prosto-assistant__visual {
    flex: 0 0 auto;
    height: var(--assistant-stage-height);
    overflow: hidden;
    pointer-events: none;
    position: relative;
    width: var(--assistant-stage-width);
}

.prosto-assistant__base,
.prosto-assistant__image {
    display: block;
    height: 100%;
    inset: 0;
    max-width: none;
    object-fit: fill;
    position: absolute;
    width: 100%;
}

.prosto-assistant__base { z-index: 1; }

.prosto-assistant__image {
    opacity: 0;
    transition: opacity 320ms cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity;
    z-index: 2;
}

.prosto-assistant__image.is-active {
    opacity: 1;
}

.prosto-assistant__waveform {
    height: 100%;
    inset: 0;
    overflow: visible;
    position: absolute;
    width: 100%;
    z-index: 3;
}

.prosto-assistant__waveform-path {
    animation: prosto-assistant-wave-idle 6.4s ease-in-out infinite;
    fill: none;
    opacity: 0.16;
    stroke: #2563eb;
    stroke-dasharray: 18 82;
    stroke-dashoffset: 0;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 5;
}

.prosto-assistant__waveform-path--right { animation-delay: -3.2s; }

.prosto-assistant[data-assistant-reacting="true"] .prosto-assistant__waveform-path {
    animation: prosto-assistant-wave-reaction 720ms ease-out both;
}

.prosto-assistant[data-assistant-state="thinking"] .prosto-assistant__waveform-path {
    animation: prosto-assistant-wave-thinking 1.55s ease-in-out infinite;
}

.prosto-assistant[data-assistant-state="success"] .prosto-assistant__waveform-path {
    animation: prosto-assistant-wave-success 760ms ease-out both;
}

.prosto-assistant[data-assistant-state="error"] .prosto-assistant__waveform-path,
.prosto-assistant[data-assistant-state="concern"] .prosto-assistant__waveform-path {
    animation: prosto-assistant-wave-alert 820ms ease-out both;
}

.prosto-assistant__toggle[aria-expanded="true"] {
    animation: prosto-assistant-open-glow 5.4s ease-in-out infinite;
}

.prosto-assistant[data-assistant-state="attention"] .prosto-assistant__toggle,
.prosto-assistant[data-assistant-state="error"] .prosto-assistant__toggle {
    border-color: rgba(190, 24, 93, 0.34);
    box-shadow: 0 9px 26px rgba(159, 18, 57, 0.15);
}

.prosto-assistant[data-assistant-state="success"] .prosto-assistant__toggle {
    border-color: rgba(5, 150, 105, 0.32);
    box-shadow: 0 9px 26px rgba(5, 120, 87, 0.14);
}

.prosto-assistant[data-assistant-paused="true"] .prosto-assistant__toggle,
.prosto-assistant[data-assistant-paused="true"] .prosto-assistant__waveform-path {
    animation-play-state: paused;
}

.prosto-assistant__panel {
    --assistant-brand-50: #eef4ff;
    --assistant-brand-100: #dbe7ff;
    --assistant-brand-200: #bdd0ff;
    --assistant-brand-500: #496b99;
    --assistant-brand-700: #1b365d;
    --assistant-brand-950: #0f1b2d;
    --assistant-ink: #1f2937;
    background: rgba(255, 255, 255, 0.985);
    border: 1px solid rgba(189, 208, 255, 0.72);
    border-radius: 1.35rem;
    box-shadow: 0 24px 60px -20px rgba(15, 27, 45, 0.3);
    color: var(--assistant-ink);
    padding: 1rem;
    max-height: calc(100dvh - 1.5rem);
    overflow-y: auto;
    position: fixed;
    width: min(23rem, calc(100vw - 1.5rem));
    z-index: 75;
}

.prosto-assistant__query { margin-top: 0.9rem; }
.prosto-assistant__query-row { display: flex; gap: 0.45rem; }
.prosto-assistant__query input { border: 1px solid #cbd5e1; border-radius: 0.9rem; flex: 1; min-width: 0; padding: 0.68rem 0.75rem; font-size: 0.82rem; }
.prosto-assistant__query button { align-items: center; background: var(--assistant-brand-700); border: 0; border-radius: 0.85rem; color: #fff; cursor: pointer; display: inline-flex; font-size: 1.05rem; justify-content: center; width: 2.65rem; }
.prosto-assistant__context { border-top: 1px solid #e2e8f0; margin-top: 0.75rem; padding-top: 0.7rem; }
.prosto-assistant__context h3 { color: var(--assistant-brand-950); font-size: 0.76rem; font-weight: 800; margin: 0 0 0.5rem; }
.prosto-assistant__context .prosto-assistant__result + .prosto-assistant__result { margin-top: 0.35rem; }
.prosto-assistant__result.is-compact { padding: 0.55rem 0.65rem; }
.prosto-assistant__result.is-compact a { display: inline-block; margin-top: 0.25rem; }
.prosto-assistant__context-tag { color: #64748b; display: block; font-size: 0.62rem; margin-top: 0.15rem; }
.prosto-assistant__results { border-top: 1px solid #e2e8f0; margin-top: 0.7rem; max-height: 18rem; overflow-y: auto; padding-top: 0.7rem; }
.prosto-assistant__result { border: 1px solid var(--assistant-brand-200); border-radius: 0.95rem; padding: 0.75rem; }
.prosto-assistant__result + .prosto-assistant__result { margin-top: 0.5rem; }
.prosto-assistant__result.is-secondary { background: #f8fafc; }
.prosto-assistant__result-title { color: var(--assistant-brand-950); font-size: 0.83rem; font-weight: 750; }
.prosto-assistant__result p, .prosto-assistant__empty, .prosto-assistant__loading { color: #64748b; font-size: 0.72rem; line-height: 1.4; margin: 0.35rem 0; }
.prosto-assistant__result a, .prosto-assistant__results > a { color: var(--assistant-brand-700); font-size: 0.74rem; font-weight: 750; }
.prosto-assistant__chips { display: flex; flex-wrap: wrap; gap: 0.3rem; margin: 0.45rem 0; }
.prosto-assistant__chips span { background: var(--assistant-brand-50); border-radius: 999px; color: var(--assistant-brand-700); font-size: 0.62rem; padding: 0.2rem 0.4rem; }

.prosto-assistant__panel[hidden] {
    display: none;
}

.prosto-assistant__panel-heading {
    align-items: flex-start;
    display: flex;
    gap: 0.75rem;
    justify-content: space-between;
}

.prosto-assistant__eyebrow {
    color: var(--assistant-brand-700);
    font-size: 0.66rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    line-height: 1;
    margin: 0 0 0.4rem;
}

.prosto-assistant__title {
    color: var(--assistant-brand-950, #0f1b2d);
    font-size: 1.05rem;
    font-weight: 750;
    line-height: 1.25;
    margin: 0;
}

.prosto-assistant__close {
    align-items: center;
    background: #f8fafc;
    border: 1px solid #dbe3ed;
    border-radius: 999px;
    color: var(--assistant-brand-500);
    cursor: pointer;
    display: inline-flex;
    flex: 0 0 auto;
    height: 2rem;
    justify-content: center;
    padding: 0;
    width: 2rem;
}

.prosto-assistant__close svg {
    fill: none;
    height: 1rem;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-width: 1.8;
    width: 1rem;
}

.prosto-assistant__quick-actions {
    display: grid;
    gap: 0.55rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 0.9rem;
}

.prosto-assistant__knowledge-link {
    align-items: center;
    background: linear-gradient(135deg, var(--assistant-brand-50), #fff);
    border: 1px solid var(--assistant-brand-200);
    border-radius: 1rem;
    color: var(--assistant-brand-950, #0f1b2d);
    display: grid;
    gap: 0.55rem;
    grid-template-columns: auto minmax(0, 1fr) auto;
    margin: 0;
    min-height: 4rem;
    padding: 0.625rem 0.7rem;
    position: relative;
    text-decoration: none;
    transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.prosto-assistant__knowledge-link:hover {
    border-color: var(--assistant-brand-500);
    transform: translateY(-1px);
}

.prosto-assistant__knowledge-link--onboarding {
    grid-column: auto;
}

.prosto-assistant__knowledge-link strong,
.prosto-assistant__knowledge-link small {
    display: block;
}

.prosto-assistant__knowledge-link strong {
    align-self: center;
    font-size: 0.75rem;
    line-height: 1.2;
}

.prosto-assistant__knowledge-icon {
    align-items: center;
    background: var(--assistant-brand-700);
    border-radius: 0.75rem;
    box-shadow: 0 6px 14px rgba(27, 54, 93, 0.16);
    color: #fff;
    display: inline-flex;
    font-size: 0.84rem;
    font-weight: 800;
    height: 2.15rem;
    justify-content: center;
    width: 2.15rem;
}

.prosto-assistant__action-arrow {
    color: var(--assistant-brand-700);
    font-weight: 800;
}

.prosto-assistant__support-modal { --assistant-brand-50: #eef4ff; --assistant-brand-200: #bdd0ff; --assistant-brand-500: #496b99; --assistant-brand-700: #1b365d; --assistant-brand-950: #0f1b2d; display: grid; inset: 0; overflow: hidden; padding: max(1rem, env(safe-area-inset-top)) 1rem max(1rem, env(safe-area-inset-bottom)); place-items: start center; position: fixed; z-index: 90; }
.prosto-assistant__support-modal[hidden] { display: none; }
.prosto-assistant__support-backdrop { background: rgba(15, 23, 42, .52); inset: 0; position: absolute; }
.prosto-assistant__support-dialog { background: white; border-radius: 1.5rem; box-shadow: 0 28px 80px rgba(15, 23, 42, .32); display: flex; flex-direction: column; max-height: calc(100dvh - 2rem); min-height: 0; padding: 1.25rem; position: relative; width: min(34rem, calc(100vw - 2rem)); z-index: 1; }
.prosto-assistant__support-form { display: grid; gap: .9rem; margin-top: 1rem; min-height: 0; min-width: 0; overflow-y: auto; overscroll-behavior: contain; padding: 0 .25rem .1rem 0; }
.prosto-assistant__support-form label { color: #334155; display: grid; font-size: .78rem; font-weight: 700; gap: .35rem; }
.prosto-assistant__support-form input, .prosto-assistant__support-form select, .prosto-assistant__support-form textarea { border: 1px solid #cbd5e1; border-radius: .8rem; font: inherit; font-weight: 400; max-width: 100%; min-width: 0; padding: .7rem; }
.prosto-assistant__support-form button { background: var(--assistant-brand-700); border: 0; border-radius: .8rem; color: white; cursor: pointer; font-weight: 700; min-height: 2.8rem; }
.prosto-assistant__support-hint { color: #64748b; font-size: .7rem; font-weight: 500; }
.prosto-assistant__support-preview { align-items: center; background: #f8fafc; border: 1px solid #e2e8f0; border-radius: .8rem; display: grid; gap: .65rem; grid-template-columns: minmax(0, 1fr); padding: .55rem; }
.prosto-assistant__support-preview[hidden] { display: none; }
.prosto-assistant__support-preview img { border-radius: .55rem; height: 2.75rem; object-fit: cover; width: 3.25rem; }
.prosto-assistant__support-preview span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.prosto-assistant__support-preview button { background: white; border: 1px solid #cbd5e1; color: #334155; min-height: 2.25rem; padding: 0 .65rem; }
.prosto-assistant__support-result { background: #fff7ed; border-color: #fdba74; }
.prosto-assistant__customer-support-dialog { margin-top: min(12vh, 6rem); overflow-y: auto; padding: 1.5rem; }
.prosto-assistant__customer-support-lead { color: #334155; font-size: .95rem; line-height: 1.6; margin: 1rem 0 0; }
.prosto-assistant__customer-support-hours { background: var(--assistant-brand-50); border: 1px solid var(--assistant-brand-200); border-radius: 1rem; color: #334155; font-size: .88rem; line-height: 1.5; margin: 1rem 0 0; padding: .9rem 1rem; }
.prosto-assistant__customer-support-actions { display: grid; gap: .75rem; margin-top: 1rem; }
.prosto-assistant__customer-support-action { align-items: center; background: #fff; border: 1px solid #cbd5e1; border-radius: 1rem; color: #1e293b; display: grid; gap: .8rem; grid-template-columns: 2.3rem minmax(0, 1fr) auto; min-height: 4.35rem; padding: .75rem .9rem; text-align: left; text-decoration: none; transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease; width: 100%; }
.prosto-assistant__customer-support-action > span:first-child { align-items: center; background: #e8f0ff; border-radius: .75rem; color: var(--assistant-brand-700); display: inline-flex; font-size: .83rem; font-weight: 800; height: 2.3rem; justify-content: center; }
.prosto-assistant__customer-support-action strong, .prosto-assistant__customer-support-action small { display: block; }
.prosto-assistant__customer-support-action strong { font-size: .88rem; }
.prosto-assistant__customer-support-action small { color: #64748b; font-size: .72rem; font-weight: 500; line-height: 1.35; margin-top: .16rem; }
.prosto-assistant__customer-support-action:not(:disabled):hover { border-color: var(--assistant-brand-500); box-shadow: 0 8px 24px rgba(15, 23, 42, .08); transform: translateY(-1px); }
.prosto-assistant__customer-support-action.is-primary { background: var(--assistant-brand-700); border-color: var(--assistant-brand-700); color: #fff; }
.prosto-assistant__customer-support-action.is-primary > span:first-child { background: rgba(255,255,255,.14); color: #fff; }
.prosto-assistant__customer-support-action.is-primary small { color: rgba(255,255,255,.76); }
.prosto-assistant__customer-support-action:disabled { background: #f1f5f9; border-color: #e2e8f0; color: #94a3b8; cursor: not-allowed; opacity: .78; }
.prosto-assistant__customer-support-action:disabled > span:first-child { background: #e2e8f0; color: #94a3b8; }
.prosto-assistant__phone-mobile { display: none; }
.prosto-assistant__phone-desktop { display: grid; }

html.prosto-assistant-modal-open,
body.prosto-assistant-modal-open { overflow: hidden; overscroll-behavior: none; }

.prosto-assistant__gallery {
    border-top: 1px solid #e2e8f0;
    margin-top: 0.9rem;
    padding-top: 0.75rem;
}

.prosto-assistant__gallery p {
    color: #64748b;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin: 0 0 0.55rem;
    text-transform: uppercase;
}

.prosto-assistant__gallery > div {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.prosto-assistant__gallery button {
    background: #f8fafc;
    border: 1px solid #dbe3ed;
    border-radius: 999px;
    color: #475569;
    cursor: pointer;
    font-size: 0.68rem;
    padding: 0.3rem 0.52rem;
}

.prosto-assistant__gallery button[aria-pressed="true"] {
    background: var(--assistant-brand-100);
    border-color: var(--assistant-brand-500);
    color: var(--assistant-brand-700);
}

.prosto-assistant--student-mobile {
    --assistant-control-height: 2.75rem;
    --assistant-control-width: 4.4rem;
    --assistant-stage-height: 2.75rem;
    --assistant-stage-width: 4.4rem;
}

.prosto-assistant--staff-mobile {
    --assistant-control-height: 2.75rem;
    --assistant-control-width: 4.4rem;
    --assistant-stage-height: 2.75rem;
    --assistant-stage-width: 4.4rem;
}

.prosto-assistant--student-mobile .prosto-assistant__toggle,
.prosto-assistant--staff-mobile .prosto-assistant__toggle {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
}

.prosto-assistant--student-mobile .prosto-assistant__toggle::after,
.prosto-assistant--staff-mobile .prosto-assistant__toggle::after { display: none; }

.prosto-assistant--student-mobile .prosto-assistant__toggle:hover,
.prosto-assistant--staff-mobile .prosto-assistant__toggle:hover { border-color: transparent; box-shadow: none; }

.prosto-assistant--student-mobile .prosto-assistant__toggle[aria-expanded="true"],
.prosto-assistant--staff-mobile .prosto-assistant__toggle[aria-expanded="true"] { animation: none; }

@keyframes prosto-assistant-open-glow {
    0%, 100% { box-shadow: 0 8px 22px rgba(15, 27, 45, 0.1), 0 0 0 rgba(73, 107, 153, 0); }
    50% { box-shadow: 0 10px 26px rgba(27, 54, 93, 0.15), 0 0 15px rgba(59, 130, 246, 0.2); }
}

@keyframes prosto-assistant-wave-idle {
    0%, 100% { opacity: 0.1; stroke-dashoffset: 0; }
    50% { opacity: 0.24; stroke-dashoffset: -28; }
}

@keyframes prosto-assistant-wave-reaction {
    0% { opacity: 0.12; stroke-dashoffset: 20; }
    45% { opacity: 0.72; stroke-dashoffset: -34; }
    100% { opacity: 0.18; stroke-dashoffset: -82; }
}

@keyframes prosto-assistant-wave-thinking {
    0%, 100% { opacity: 0.18; stroke-dashoffset: 0; }
    50% { opacity: 0.46; stroke-dashoffset: -50; }
}

@keyframes prosto-assistant-wave-success {
    0% { opacity: 0.16; stroke: #2563eb; stroke-dashoffset: 15; }
    45% { opacity: 0.68; stroke: #10b981; stroke-dashoffset: -35; }
    100% { opacity: 0.14; stroke: #2563eb; stroke-dashoffset: -80; }
}

@keyframes prosto-assistant-wave-alert {
    0% { opacity: 0.14; stroke-dashoffset: 10; }
    42% { opacity: 0.54; stroke-dashoffset: -30; }
    100% { opacity: 0.14; stroke-dashoffset: -70; }
}

@media (prefers-reduced-motion: reduce) {
    .prosto-assistant__toggle,
    .prosto-assistant__visual,
    .prosto-assistant__image,
    .prosto-assistant__waveform-path,
    .prosto-assistant__knowledge-link {
        animation: none !important;
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 359px) {
    .prosto-assistant__quick-actions { grid-template-columns: 1fr; }
    .prosto-assistant__knowledge-link { min-height: 4rem; }
}

@media (max-width: 767px) {
    .prosto-assistant__customer-support-dialog { margin-top: 0; padding: 1.2rem; }
    .prosto-assistant__phone-mobile { display: grid; }
    .prosto-assistant__phone-desktop { display: none; }
}