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.cu {
    --cu-ink: #111;
    --cu-muted: #6b6b6b;
    --cu-line: #e6e6e6;
    --cu-soft: #f6f6f6;
    --cu-bg: #f3f3f3;
    --cu-card: #fff;
    --cu-radius: 16px;
    --cu-accent: var(--primary, #e62e04);
    --cu-ease: cubic-bezier(0.22, 1, 0.36, 1);
    position: relative;
    overflow: hidden;
    font-family: 'Hind Siliguri', sans-serif;
    background: var(--cu-bg);
    padding: 28px 0 72px;
    min-height: calc(100vh - 120px);
}

.cu::before,
.cu::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.cu::before {
    width: 420px;
    height: 420px;
    top: -180px;
    right: -120px;
    background: color-mix(in srgb, var(--cu-accent) 7%, transparent);
    animation: cu-float 8s ease-in-out infinite;
}

.cu::after {
    width: 320px;
    height: 320px;
    bottom: -140px;
    left: -100px;
    background: color-mix(in srgb, var(--cu-accent) 5%, transparent);
    animation: cu-float 10s ease-in-out infinite reverse;
}

.cu__shell {
    position: relative;
    z-index: 1;
    width: min(100%, 1120px);
    margin: 0 auto;
    padding: 0 20px;
}

.cu__head {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 24px;
}

.cu__back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    color: var(--cu-ink);
    text-decoration: none !important;
    border: 1px solid var(--cu-line);
    background: #fff;
    flex-shrink: 0;
    transition: transform 0.2s var(--cu-ease);
}

.cu__back:hover {
    color: var(--cu-ink);
    transform: translateX(-2px);
}

.cu__title {
    margin: 0 0 6px;
    font-size: 28px;
    font-weight: 700;
    color: var(--cu-ink);
    letter-spacing: -0.02em;
}

.cu__lead {
    margin: 0;
    max-width: 520px;
    font-size: 15px;
    line-height: 1.55;
    color: var(--cu-muted);
}

.cu__grid {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 18px;
    align-items: stretch;
}

.cu__info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.cu-info-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 16px;
    border-radius: var(--cu-radius);
    background: var(--cu-card);
    border: 1px solid var(--cu-line);
    box-shadow: none;
    transition: border-color 0.22s ease, transform 0.22s var(--cu-ease);
}

.cu-info-card:hover {
    border-color: color-mix(in srgb, var(--cu-accent) 22%, #fff);
    transform: translateY(-2px);
}

.cu-info-card__icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cu-accent);
    background: color-mix(in srgb, var(--cu-accent) 10%, #fff);
    border: 1px solid color-mix(in srgb, var(--cu-accent) 18%, #fff);
    transition: transform 0.25s var(--cu-ease);
}

.cu-info-card:hover .cu-info-card__icon {
    transform: scale(1.06) rotate(-3deg);
    animation: cu-icon-pop 0.45s var(--cu-ease);
}

.cu-info-card__label {
    display: block;
    margin: 0 0 4px;
    font-size: 14px;
    font-weight: 700;
    color: var(--cu-ink);
}

.cu-info-card__value {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    color: var(--cu-muted);
}

.cu-info-card__value a {
    color: inherit;
    text-decoration: none;
}

.cu-info-card__value a:hover {
    color: var(--cu-accent);
}

.cu-card {
    height: 100%;
    padding: 24px 22px;
    border-radius: var(--cu-radius);
    background: var(--cu-card);
    border: 1px solid var(--cu-line);
    box-shadow: none;
}

.cu-card__title {
    margin: 0 0 6px;
    font-size: 18px;
    font-weight: 700;
    color: var(--cu-ink);
}

.cu-card__sub {
    margin: 0 0 20px;
    font-size: 14px;
    color: var(--cu-muted);
}

.cu-field {
    margin-bottom: 14px;
    animation: cu-rise 0.5s var(--cu-ease) both;
}

.cu-field:nth-child(1) { animation-delay: .12s; }
.cu-field:nth-child(2) { animation-delay: .16s; }
.cu-field:nth-child(3) { animation-delay: .2s; }
.cu-field:nth-child(4) { animation-delay: .24s; }

.cu-field__label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--cu-ink);
}

.cu-field__input,
.cu-field__textarea {
    width: 100%;
    border: 1px solid var(--cu-line);
    border-radius: 12px;
    background: var(--cu-soft);
    color: var(--cu-ink);
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.cu-field__input {
    height: 50px;
    padding: 0 14px;
}

.cu-field__textarea {
    min-height: 120px;
    padding: 12px 14px;
    resize: vertical;
}

.cu-field__input:focus,
.cu-field__textarea:focus {
    outline: none;
    background: #fff;
    border-color: color-mix(in srgb, var(--cu-accent) 35%, #fff);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--cu-accent) 10%, transparent);
}

.cu-field__input::placeholder,
.cu-field__textarea::placeholder {
    color: #a3a3a3;
}

.cu-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 160px;
    height: 50px;
    margin-top: 6px;
    padding: 0 24px;
    border: 0;
    border-radius: 12px;
    background: var(--cu-accent);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    box-shadow: none;
    transition: filter 0.2s ease, transform 0.2s var(--cu-ease);
}

.cu-submit:hover {
    filter: brightness(1.05);
    transform: translateY(-1px);
    color: #fff;
}

.cu-submit:hover svg {
    transform: translateX(3px);
}

.cu-submit svg {
    transition: transform 0.22s var(--cu-ease);
}

.cu-submit:active {
    transform: translateY(0);
}

.cu-submit.is-loading {
    pointer-events: none;
    opacity: 0.85;
}

.cu-alert {
    margin-bottom: 14px;
    padding: 10px 12px;
    border-radius: 10px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
    font-size: 13px;
    font-weight: 600;
}

.cu-rise {
    animation: cu-rise 0.55s var(--cu-ease) both;
}

@keyframes cu-rise {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cu-float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(0, 12px); }
}

@keyframes cu-icon-pop {
    0% { transform: scale(1); }
    45% { transform: scale(1.1) rotate(-3deg); }
    100% { transform: scale(1.06) rotate(-3deg); }
}

@media (max-width: 991.98px) {
    .cu__grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767.98px) {
    .cu__title {
        font-size: 24px;
    }

    .cu__shell {
        padding: 0 14px;
    }

    .cu-submit {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cu-rise,
    .cu-info-card,
    .cu-info-card__icon {
        animation: none !important;
        transition: none !important;
    }
}