* {
    box-sizing: border-box;
}

:root {
    --timing: 0.2s;
    --color-navy: #1b1d36;
    --color-navy-soft: rgba(27, 29, 54, 0.76);
    --color-navy-faint: rgba(27, 29, 54, 0.08);
    --color-navy-hover: rgba(27, 29, 54, 0.32);
    --color-orange: #fb914a;
    --color-orange-tint: rgba(251, 145, 74, 0.08);
    --color-alert: #e8590c;
    --color-white: #ffffff;
    --color-divider: #606173;

    --color-badge-bg: #f3f3f5;
    --color-badge-icon-fill: #fff;
    --color-badge-bg-blue: #eef9fd;
    --color-badge-bg-teal: #e9fbf6;

    --color-icon-fill: #fff;
    --color-icon-blue: #c6eaf8;
    --color-icon-teal: #b5efde;

    --container-padding-inline: 32px;
    --container-padding-block: 32px;
    --container-max-width: 744px;
    --container-max-width-calc: calc(var(--container-max-width) + (var(--container-padding-inline) * 2));

    --option-card-padding: 20px;

    --footer-padding-block: 60px 70px;

    --font-heading: "Roboto Serif", serif;
    --font-body: "Noto Sans", -apple-system, BlinkMacSystemFont, sans-serif;
}

@media (min-width: 640px) {
    :root {
        --container-padding-inline: 48px;
        --container-padding-block: 32px;
        --footer-padding-block: 60px 85px;
        --option-card-padding: 32px;
    }
}
@media (min-width: 1024px) {
    :root {
        --container-padding-block: 80px;
        --footer-padding-block: 60px 60px;
        --option-card-padding: 48px 32px;
    }
}

@media (min-width: 1200px) {
    :root {
        --container-max-width: 1160px;
    }
}

[hidden] {
    display: none !important;
}

[data-option="new"] {
    --color-icon-fill-selected: var(--color-icon-blue);
    --color-badge-icon-fill-selected: var(--color-icon-blue);
    --color-badge-bg-selected: var(--color-badge-bg-blue);
}
[data-option="existing"] {
    --color-icon-fill-selected: var(--color-icon-teal);
    --color-badge-icon-fill-selected: var(--color-icon-teal);
    --color-badge-bg-selected: var(--color-badge-bg-teal);
}

body {
    margin: 0;
    background: var(--color-white);
    font-family: var(--font-body);
    color: var(--color-navy);
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    background: var(--color-white);
}

a {
    color: inherit;
}

.container {
    max-width: var(--container-max-width-calc);
    margin: 0 auto;
    padding-inline: var(--container-padding-inline);
}

/* Header */

header {
    background: var(--color-navy);

    .inner {
        height: 80px;
        display: flex;
        align-items: center;
    }

    img {
        height: 37px;
        width: auto;
    }
}

/* Main content */
main {
    padding-block: var(--container-padding-block);
    width: 100%;
    flex-grow: 1;

    .container {
        display: grid;
        align-content: start;
        align-items: start;
        column-gap: 64px;
        row-gap: 0px; /* can't use row gap, as when the content-panels are hidden, they still take up space, so a double gap is always there */
        grid-template-columns: 1fr;
        grid-template-areas:
            "headline"
            "options-list"
            "content-panel"
            "cta-row";
    }
}

@media (min-width: 1024px) {
    main {
        .container {
            grid-template-columns: 332fr 348fr;
            grid-template-areas:
                "headline headline"
                "options-list content-panel"
                "cta-row content-panel";
        }
    }
}
@media (min-width: 1200px) {
    main {
        .container {
            grid-template-columns: 586fr 478fr;
            column-gap: 96px;
        }
    }
}

h1 {
    grid-area: headline;
    font-family: var(--font-heading);
    font-weight: 400;
    font-stretch: 87.5%;
    font-size: 32px;
    line-height: 38px;
    letter-spacing: -0.36px;
    color: var(--color-navy);
    margin: 0px 0px 32px 0px;
}

@media (min-width: 640px) {
    h1 {
        font-size: 36px;
        line-height: 42px;
    }
}

@media (min-width: 1024px) {
    h1 {
        font-size: 38px;
        line-height: 42px;
    }
}

.option-list {
    grid-area: options-list;
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.option-card {
    display: grid;
    grid-template-areas:
        "heading icon"
        "badge badge"
        "desc desc";
    justify-items: start;
    align-items: center;
    grid-template-columns: 1fr auto;
    row-gap: 12px;
    column-gap: 16px;
    width: 100%;
    text-align: left;
    background: none;
    border: 2px solid var(--color-navy-faint);
    border-radius: 12px;
    padding: var(--option-card-padding);
    cursor: pointer;
    transition: border-color var(--timing) ease;
    font-family: inherit;
    outline: none;

    &:hover,
    &:focus-visible {
        border-color: var(--color-navy-hover);
    }

    .option-heading {
        grid-area: heading;
        font-size: 20px;
        font-weight: 700;
        line-height: 26px;
        color: var(--color-navy);
        margin: 0;
    }

    .option-description {
        grid-area: desc;
        font-size: 14px;
        line-height: 20px;
        color: var(--color-navy-soft);
        margin: 0;
    }

    .option-icon {
        grid-area: icon;
        flex-shrink: 0;
        width: 64px;
        height: 64px;
        .path-to-fill {
            fill: var(--color-icon-fill);
            transition: fill var(--timing) ease;
        }
    }
    &[aria-pressed="true"] {
        border-color: var(--color-navy);
        --color-badge-bg: var(--color-badge-bg-selected);
        --color-badge-icon-fill: var(--color-badge-icon-fill-selected);
        --color-icon-fill: var(--color-icon-fill-selected);
    }
}

.option-time-badge {
    grid-area: badge;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    border-radius: 99999px;
    padding: 4px 12px 4px 8px;
    background: var(--color-badge-bg);
    transition: background-color var(--timing) ease;

    svg {
        width: 20px;
        height: 20px;
        flex-shrink: 0;
        .path-to-fill {
            fill: var(--color-badge-icon-fill);
            transition: fill var(--timing) ease;
        }
    }
    span {
        font-size: 12px;
        font-weight: 700;
        text-transform: uppercase;
        line-height: 1;
        color: var(--color-navy);
    }
}

@media (min-width: 640px) {
    .option-card {
        column-gap: 64px;
        grid-template-areas:
            "badge icon"
            "heading icon"
            "desc icon";
    }
}
@media (min-width: 1024px) {
    .option-card {
        column-gap: 12px;
        grid-template-areas:
            "heading icon"
            "desc icon";

        .option-time-badge {
            display: none;
        }

        .option-icon {
            width: 80px;
            height: 80px;
        }
    }
}

@media (min-width: 1200px) {
    .option-card {
        column-gap: 64px;
    }
}

/* CTA */
.cta-row {
    grid-area: cta-row;
    flex-direction: column;
    gap: 20px;
    display: flex;

    button,
    a {
        display: flex;
        width: 100%;
        align-items: center;
        justify-content: center;
        gap: 8px;
        border: none;
        border-radius: 99px;
        background: var(--color-orange);
        padding: 16px 32px;
        font-family: inherit;
        font-size: 15px;
        font-weight: 700;
        color: var(--color-navy);
        text-decoration: none;
        cursor: not-allowed;
        opacity: 0.3;
        transition: all var(--timing) ease;

        &:not(:disabled) {
            cursor: pointer;
            opacity: 1;

            &:hover {
                filter: brightness(1.1);
            }
        }
        svg {
            flex-shrink: 0;
        }
    }
    p {
        text-align: center;
        font-size: 13px;
        color: var(--color-navy);
        margin: 0;
    }
}

/* Content Panel */

.content-panel {
    --color-badge-bg: var(--color-badge-bg-selected);
    --color-badge-icon-fill: var(--color-badge-icon-fill-selected);
    --color-icon-fill: var(--color-icon-fill-selected);

    grid-area: content-panel;
    margin-bottom: 32px;
    display: grid;
    gap: 40px; /* gap between intro and checklist */
    animation: panel-fade-in calc(var(--timing) * 2) ease;

    p {
        font-size: 15px;
        line-height: 22px;
        color: var(--color-navy-soft);
        margin: 0;
    }

    .hdr {
        font-size: 20px;
        font-weight: 600;
        line-height: 26px;
        color: var(--color-navy);
    }

    .checklist-container {
        display: flex;
        flex-direction: column;
        gap: 16px;
        font-size: 15px;
        line-height: normal;
        color: var(--color-navy);

        ul {
            margin: 0px;
            padding: 0px;
            list-style-type: none;
            display: flex;
            flex-direction: column;

            li {
                display: flex;
                align-items: center;
                gap: 16px;
                padding: 8px 0;

                svg {
                    width: 24px;
                    height: 24px;
                    flex-shrink: 0;
                }
            }
        }
    }

    .notice {
        display: flex;
        align-items: center;
        gap: 16px;
        border-radius: 12px;
        background: var(--color-orange-tint);
        padding: 16px 20px;
        font-size: 15px;
        line-height: 22px;
        color: var(--color-navy);

        svg {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
        }

        p {
            margin: 0;
        }
        a {
            text-decoration: underline;
        }
    }
}

.content-panel[hidden] {
    animation: none;
}

.content-panel[data-option="intro"] {
    position: relative;
    width: 100%;
    aspect-ratio: 469 / 446;
    overflow: hidden;

    video,
    img {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
        object-fit: contain;
        object-position: top;
    }
}

@media (max-width: 1023px) {
    .content-panel[data-option="intro"] {
        display: none;
    }
}

.panel-intro {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

@media (max-width: 1023px) {
    .panel-intro {
        display: none;
    }
}

/* Footer */
footer {
    background: var(--color-navy);
    color: var(--color-white);
    font-size: 12px;
    line-height: 18px;
    font-weight: 500;
    text-align: center;
    padding-block: var(--footer-padding-block);

    .inner {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    a {
        text-decoration: underline;
    }

    .logo {
        height: 37px;
        width: auto;
        margin-bottom: calc(60px - 24px);
    }
    .divider {
        height: 1px;
        width: 100%;
        background: var(--color-divider);
    }
    .legal {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 12px;
        text-align: center;
    }
    ul.copyright {
        margin: 0px;
        padding: 0px;
        display: flex;
        flex-direction: column;
        list-style: none;
        line-height: 30px;
        .sep {
            display: none;
            border-left: 1px solid currentColor;
        }
    }
    .disclaimer {
        text-align: left;
        margin: 0;
    }
}

@media (min-width: 1024px) {
    footer {
        .inner {
            align-items: flex-start;
        }
        ul.copyright {
            flex-direction: row;
            gap: 24px;
            line-height: 1;
            .sep {
                display: block;
            }
        }
    }
}


@keyframes panel-fade-in {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}