:root {
    --primary-blue: #5175FF;
    --secondary-blue: #829CFF;
    --light-blue: #C1CFFF;
    --lighter-blue: #E4EAFF;

    --dark-gray: #1C1F2C;
    --gray: #212529;
    --white: #FFFFFF;
    --light-gray: #F8F8F8;

    --container-max-width: 1110px;

    --white-area-height: 990px;

    --tablet-primary-color: #7234F9;
    --tablet-lighter-color: #F8F7FF;
    --tablet-light-color: #D3C3FF;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Kumbh Sans', sans-serif;
    color: var(--dark-gray);
    background-color: var(--white);
    min-height: 100vh;
}

.background-transition-wrapper {
    background: linear-gradient(to bottom,
            var(--white) var(--white-area-height),
            var(--dark-gray) var(--white-area-height));
}

a {
    text-decoration: none;
}

.button {
    display: inline-block;
    padding: 0.875rem 2.1rem;
    border-radius: 28px;
    font-weight: 700;
    font-size: 1rem;
    transition: background-color 0.3s;
    text-align: center;
}

.button-primary {
    background-color: var(--primary-blue);
    color: var(--white);
    box-shadow: 0 4px 10px rgba(81, 117, 255, 0.4);
}

.button-secondary {
    background-color: var(--lighter-blue);
    color: var(--primary-blue);
    border: none;
}

.button-tertiary {
    background-color: var(--white);
    color: var(--primary-blue);
}

.header,
.hero-section,
.pricing-section {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.header {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
}

.hero-section {
    display: flex;
    align-items: center;
    gap: 1.875rem;
    padding-bottom: 7rem;
}

.hero-content {
    flex: 1;
    max-width: 50%;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

.hero-content p {
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    color: var(--gray);
}

.hero-image {
    flex: 1;
    text-align: right;
}

.illustration-charts {
    max-width: 100%;
    height: auto;
}

.pricing-section {
    padding-top: 5rem;
    padding-bottom: 5rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.875rem;
}

.pricing-card {
    padding: 2.5rem;
    border-radius: 12px;
    background-color: var(--white);
    text-align: center;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.card-basic,
.card-ultimate {
    border: 1px solid var(--lighter-blue);
}

.card-pro {
    background: linear-gradient(180deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white);
    border: none;
}

.plan-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.plan-price {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1;
}

.plan-period {
    font-size: 0.9375rem;
    font-weight: 400;
    margin-bottom: 2rem;
}

.card-basic .plan-period,
.card-ultimate .plan-period {
    color: var(--gray);
}

.card-pro .plan-period {
    color: var(--light-blue);
}

.features-list {
    list-style: none;
    margin-bottom: 2.5rem;
}

.features-list li {
    font-size: 1rem;
    padding: 0.5rem 0;
    line-height: 1.4;
    color: var(--gray);
    text-align: center;
}

.final-cta-footer {
    width: 100%;
    padding: 6rem 1.5rem 8rem;
    text-align: center;
}

.signup-body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.sign-up-page {
    background-color: var(--white);
}

.main-signup-wrapper {
    display: flex;
    flex-grow: 1;
    min-height: 100vh;
}

.signup-content {
    flex: 6;
    background-color: var(--white);
    padding: 3.5rem 2rem 3.5rem 8rem;
    max-width: 60%;
}

.header-signup {
    margin-bottom: 8rem;
}

.marketing-text {
    width: 100%;
    max-width: 600px;
}

.marketing-text h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
    white-space: nowrap;
}

.marketing-text p {
    font-size: 1.125rem;
    line-height: 1.6;
    color: var(--gray);
}

.signup-form-section {
    flex: 4;
    background-color: var(--dark-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3.5rem 1.5rem;
    max-width: 40%;
    position: relative;
}

.form-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 450px;
    transform: translateX(-150px);
    position: relative;
    z-index: 10;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--lighter-blue);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--dark-gray);
    transition: border-color 0.3s;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-color: var(--white);
    cursor: pointer;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.signup-form .button-primary {
    width: 100%;
    margin-top: 1.5rem;
}

@media (max-width: 1024px) {
    .background-transition-wrapper .button-primary {
        background-color: var(--tablet-primary-color);
        box-shadow: 0 4px 10px rgba(114, 52, 249, 0.4);
    }

    .background-transition-wrapper .card-pro {
        background: linear-gradient(180deg, var(--tablet-primary-color) 0%, #9F62FF 100%);
    }

    .background-transition-wrapper .button-secondary {
        background-color: var(--tablet-lighter-color);
        color: var(--tablet-primary-color);
    }

    .background-transition-wrapper .button-tertiary {
        color: var(--tablet-primary-color);
    }

    .background-transition-wrapper .card-pro .plan-period {
        color: var(--tablet-light-color);
    }

    :root {
        --white-area-height: 1600px;
    }

    .hero-section {
        max-width: 900px;
        margin: 0 auto;
        padding: 4rem 2rem;
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: center;
        gap: 3rem;
        text-align: left;
    }

    .hero-content {
        order: 1;
        max-width: 100%;
    }

    .hero-image {
        order: 2;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 3rem;
    }

    .hero-content p {
        font-size: 1.1rem;
        max-width: 420px;
    }

    .pricing-section {
        grid-template-columns: 1fr;
        max-width: 690px;
        margin: 0 auto;
        padding: 3rem 1.5rem 5rem;
        display: flex;
        flex-direction: column;
        gap: 2.5rem;
    }

    .card-basic,
    .card-ultimate {
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-template-rows: auto auto auto 1fr;
        text-align: left;
        padding: 2.5rem;
        gap: 1rem 2.5rem;
    }

    .plan-name {
        grid-column: 1;
        grid-row: 1;
        text-align: left;
    }

    .plan-price {
        grid-column: 1;
        grid-row: 2;
        text-align: left;
    }

    .plan-period {
        grid-column: 1;
        grid-row: 3;
        text-align: left;
        margin-bottom: 0;
    }

    .features-list {
        grid-column: 2;
        grid-row: 1 / span 3;
        list-style: none;
        margin-bottom: 0;
        padding-top: 0.5rem;
        display: block;
        text-align: left;
    }

    .features-list li {
        text-align: left;
        color: var(--dark-gray);
        padding: 0.1rem 0;
    }

    .pricing-card .button {
        grid-column: 1 / 3;
        grid-row: 4;
        margin-top: 1.5rem;
        width: 100%;
        max-width: none;
        text-align: center;
    }

    .card-pro {
        display: flex;
        flex-direction: column;
        text-align: center;
        grid-template-columns: none;
        padding: 3rem 2rem;
    }

    .card-pro .features-list {
        text-align: center;
        margin-top: 2rem;
        margin-bottom: 2.5rem;
    }

    .card-pro .features-list li {
        color: var(--white);
        text-align: center;
        padding: 0.5rem 0;
    }

    .card-pro .button {
        margin: 0 auto;
        width: auto;
        max-width: none;
    }

    .sign-up-page .main-signup-wrapper {
        min-height: 100vh;
        background: linear-gradient(to bottom,
                var(--white) 75%,
                var(--dark-gray) 75%);
        flex-direction: column;
        flex-grow: 0;
    }

    .sign-up-page {
        background-color: var(--white);
    }

    .signup-body {
        min-height: auto;
        padding-bottom: 0;
    }

    .signup-content {
        max-width: 100%;
        width: 100%;
        padding: 3.5rem 1.5rem 0;
        text-align: left;
        background-color: transparent;
    }

    .header-signup {
        margin-bottom: 4rem;
    }

    .marketing-text {
        max-width: 500px;
        margin: 0;
    }

    .marketing-text h1 {
        white-space: normal;
        font-size: 2.5rem;
    }

    .signup-form-section {
        max-width: 100%;
        width: 100%;
        background-color: transparent;
        justify-content: center;
        align-items: flex-start;
        padding: 3rem 1.5rem;
        padding-bottom: 4rem;
    }

    .form-card {
        transform: none;
        position: static;
        max-width: 500px;
        margin: 0 auto;
        width: 100%;
        background-color: var(--white);
        padding-bottom: 2.5rem;
    }

    .sign-up-page .button-primary {
        background-color: var(--primary-blue);
        box-shadow: 0 4px 10px rgba(81, 117, 255, 0.4);
    }
}


@media (max-width: 600px) {

    .background-transition-wrapper .button-primary,
    .background-transition-wrapper .final-cta-footer .button-primary {
        background-color: var(--tablet-primary-color) !important;
        box-shadow: 0 4px 10px rgba(114, 52, 249, 0.4);
    }

    .background-transition-wrapper .card-pro {
        background: linear-gradient(180deg, var(--tablet-primary-color) 0%, #9F62FF 100%);
    }

    .background-transition-wrapper .button-secondary {
        background-color: var(--tablet-lighter-color);
        color: var(--tablet-primary-color);
    }

    .background-transition-wrapper .button-tertiary {
        background-color: var(--white);
        color: var(--tablet-primary-color);
    }

    .background-transition-wrapper .card-pro .plan-period {
        color: var(--tablet-light-color);
    }

    :root {
        --white-area-height: 1750px;
    }

    .hero-section {
        display: flex;
        flex-direction: column;
        padding-bottom: 4rem;
        gap: 2.5rem;
        max-width: 400px;
        margin: 0 auto;
    }

    .hero-content {
        order: 2;
        max-width: 100%;
        text-align: left;
    }

    .hero-image {
        order: 1;
        text-align: center;
        width: 100%;
        padding-bottom: 0;
    }

    .illustration-charts {
        max-width: 100%;
        height: auto;
        display: block;
        margin: 0 auto;
    }

    .hero-content h1 {
        font-size: 2.5rem;
        line-height: 1.2;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .pricing-section {
        grid-template-columns: 1fr;
        max-width: 400px;
        gap: 1.5rem;
        padding: 3rem 1.5rem 5rem;
    }

    .card-basic,
    .card-ultimate {
        display: flex;
        flex-direction: column;
        text-align: center;
        padding: 2.5rem;
    }

    .plan-name,
    .plan-price,
    .plan-period {
        text-align: center;
    }

    .plan-period {
        margin-bottom: 2rem;
    }

    .features-list {
        display: block;
        text-align: center;
        padding-top: 0;
        margin-bottom: 2.5rem;
    }

    .features-list li {
        text-align: center;
        padding: 0.3rem 0;
        color: var(--dark-gray);
    }

    .card-pro .features-list li {
        color: var(--white);
    }

    .pricing-card .button {
        max-width: none;
        margin: 0 auto;
    }


    .sign-up-page {
        background-color: var(--white);
    }

    .signup-body {
        padding-bottom: 0;
    }

    .main-signup-wrapper {
        min-height: auto;
        background: linear-gradient(to bottom,
                var(--white) 750px,
                var(--dark-gray) 750px);
        flex-direction: column;
    }

    .header-signup {
        margin-bottom: 1.5rem;
        text-align: left;
    }

    .signup-content {
        padding: 2rem 1.5rem 0;
        background-color: transparent;
        text-align: left;
    }

    .signup-content .marketing-text h1 {
        margin-bottom: 1rem;
    }

    .signup-content .marketing-text p {
        font-size: 1rem;
        line-height: 1.5;
        margin-bottom: 2.5rem;
    }

    .signup-form-section {
        padding: 4rem 1.5rem;
        background-color: transparent;
        justify-content: center;
    }

    .form-card {
        padding: 1.5rem;
        padding-bottom: 2.5rem;
        max-width: 400px;
        margin: 0 auto;
        transform: none;
    }

    .sign-up-page .button-primary {
        background-color: var(--primary-blue);
        box-shadow: 0 4px 10px rgba(81, 117, 255, 0.4);
    }
}