.start-hero {
    width: min(980px, calc(100% - 40px));
    margin: 0 auto;
    padding: 92px 0 56px;
    text-align: center;
}

.start-hero__label {
    margin: 0 0 12px;
    color: var(--gray);
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.05em;
}

.start-hero h1 {
    max-width: 880px;
    margin: 0 auto;
    color: var(--black);
    font-size: clamp(38px, 4.6vw, 60px);
    line-height: 1.05;
    font-weight: 600;
    letter-spacing: -0.045em;
}

.start-hero__lead {
    max-width: 760px;
    margin: 26px auto 0;
    color: var(--gray);
    font-size: clamp(20px, 2vw, 24px);
    line-height: 1.32;
    letter-spacing: -0.045em;
}

.start-panel {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto 80px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 16px;
}

.start-panel__content,
.start-steps {
    border-radius: 34px;
    background: var(--white);
}

.start-panel__content {
    padding: 42px;
}

.start-panel__eyebrow {
    margin: 0 0 14px;
    color: var(--blue);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.03em;
}

.start-panel h2 {
    max-width: 620px;
    margin: 0;
    color: var(--black);
    font-size: clamp(32px, 3.6vw, 52px);
    line-height: 1.06;
    font-weight: 600;
    letter-spacing: -0.045em;
}

.start-panel__content p:not(.start-panel__eyebrow) {
    max-width: 620px;
    margin: 22px 0 30px;
    color: var(--gray);
    font-size: 19px;
    line-height: 1.36;
    letter-spacing: -0.04em;
}

.start-steps {
    padding: 28px;
}

.start-steps article {
    padding: 22px 0;
    border-bottom: 1px solid var(--gray-light);
}

.start-steps article:first-child {
    padding-top: 0;
}

.start-steps article:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.start-steps span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    margin-bottom: 14px;
    border-radius: 999px;
    color: var(--white);
    background: var(--black);
    font-size: 15px;
    font-weight: 600;
}

.start-steps h3 {
    margin: 0;
    color: var(--black);
    font-size: 24px;
    line-height: 1.12;
    font-weight: 600;
    letter-spacing: -0.04em;
}

.start-steps p {
    margin: 10px 0 0;
    color: var(--gray);
    font-size: 17px;
    line-height: 1.35;
    letter-spacing: -0.035em;
}


.start-form__selected-plan,
.start-form,
.start-form__success,
.start-form__errors {
    border-radius: 34px;
    background: var(--white);
}

.start-form__selected-plan {
    padding: 34px;
    border: 1px solid rgba(0, 113, 227, 0.12);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.05);
    background: linear-gradient(180deg, #ffffff 0%, #fbfbfd 100%);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.start-form__selected-plan .start-form__hint {
    margin: 0 0 10px;
    color: var(--blue);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.start-form__selected-plan h3 {
    margin: 0 0 14px;
    color: var(--black);
    font-size: 30px;
    line-height: 1.1;
    font-weight: 600;
    letter-spacing: -0.045em;
}

.start-form__selected-plan p {
    margin: 10px 0 0;
    color: var(--gray);
    font-size: 17px;
    line-height: 1.38;
    letter-spacing: -0.035em;
}

.start-form__selected-plan strong {
    display: block;
    color: var(--black);
    font-size: 26px;
    line-height: 1.15;
    font-weight: 600;
    letter-spacing: -0.04em;
}

.start-form {
    grid-column: 1 / -1;
    padding: 42px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.start-form__group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.start-form__group label {
    color: var(--black);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.025em;
}

.start-form__group input[type="text"],
.start-form__group input[type="email"],
.start-form__group input[type="tel"],
.start-form__group input[type="password"] {
    width: 100%;
    min-height: 48px;
    padding: 0 16px;
    border: 1px solid var(--gray-light);
    border-radius: 14px;
    color: var(--black);
    background: var(--white);
    font: inherit;
    font-size: 17px;
    letter-spacing: -0.025em;
}

.start-form__group input:focus-visible {
    border-color: var(--blue);
    outline: 3px solid rgba(0, 113, 227, 0.16);
    outline-offset: 0;
}

.start-form__hint {
    margin: 2px 0 0;
    color: var(--gray);
    font-size: 14px;
    line-height: 1.35;
    letter-spacing: -0.025em;
}

.start-form__group:has(input[type="checkbox"]) {
    grid-column: 1 / -1;
}

.start-form__group label:has(input[type="checkbox"]) {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--gray);
    font-size: 16px;
    line-height: 1.35;
    font-weight: 400;
}

.start-form__group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 1px 0 0;
    accent-color: var(--blue);
}

.start-form .button {
    justify-self: start;
    grid-column: 1 / -1;
    border: 0;
    cursor: pointer;
    font: inherit;
}

.start-panel--phone {
    width: min(520px, calc(100% - 40px));
    margin: 72px auto 96px;
    grid-template-columns: 1fr;
    gap: 0;
    border-radius: 34px;
    background: var(--white);
    box-shadow: 0 18px 44px rgba(0, 0, 0, 0.045);
}

.start-panel--phone .start-panel__content {
    padding: 38px 38px 18px;
    border-radius: 34px 34px 0 0;
    background: transparent;
}

.start-panel--phone .start-panel__content p:not(.start-panel__eyebrow) {
    margin: 20px 0 24px;
}

.start-panel--phone .start-form {
    grid-column: auto;
    grid-template-columns: 1fr;
    padding: 0 38px 38px;
    border-radius: 0 0 34px 34px;
    background: transparent;
}

.start-panel--phone .start-form__success,
.start-panel--phone .start-form__group {
    width: 100%;
    max-width: none;
    box-sizing: border-box;
}

.start-panel--phone .start-form .button {
    grid-column: auto;
    margin-top: 2px;
}

.start-form__success,
.start-form__errors {
    grid-column: 1 / -1;
    padding: 22px 26px;
    color: var(--black);
    font-size: 17px;
    line-height: 1.4;
    letter-spacing: -0.03em;
}

.start-form__success {
    border: 1px solid rgba(52, 199, 89, 0.26);
}

.start-form__errors {
    border: 1px solid rgba(255, 59, 48, 0.28);
}

.start-form__errors p {
    margin: 0 0 10px;
    font-weight: 600;
}

.start-form__errors ul {
    margin: 0;
    padding-left: 20px;
}

.start-form__errors li + li {
    margin-top: 6px;
}

@media (max-width: 900px) {
    .start-hero {
        width: min(980px, calc(100% - 28px));
        padding: 72px 0 48px;
        text-align: left;
    }

    .start-hero h1,
    .start-hero__lead {
        margin-left: 0;
        margin-right: 0;
    }

    .start-panel {
        width: min(1180px, calc(100% - 28px));
        grid-template-columns: 1fr;
        margin-bottom: 64px;
    }

    .start-form {
        grid-template-columns: 1fr;
        padding: 32px;
    }

}

@media (max-width: 520px) {
    .start-hero {
        width: min(980px, calc(100% - 20px));
        padding: 56px 0 36px;
    }

    .start-hero__label {
        font-size: 20px;
    }

    .start-hero h1 {
        font-size: 36px;
    }

    .start-hero__lead {
        font-size: 21px;
    }

    .start-panel {
        width: min(1180px, calc(100% - 20px));
        margin-bottom: 48px;
    }

    .start-panel__content,
    .start-steps {
        padding: 28px;
        border-radius: 26px;
    }

    .start-panel h2 {
        font-size: 34px;
    }

    .start-form,
    .start-form__selected-plan,
    .start-form__success,
    .start-form__errors {
        padding: 24px;
        border-radius: 26px;
    }

}