@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;600;700;800;900&display=swap');

:root {
    --color-ink: #223044;
    --color-muted: #66758a;
    --color-line: #dbe9f1;
    --color-base: #ffffff;
    --color-cream: #fffaf0;
    --color-blue-50: #f0f9ff;
    --color-blue-100: #e2f4fc;
    --color-blue-300: #a8ddf2;
    --color-blue-600: #4e91bb;
    --color-mint: #eaf8f3;
    --color-orange: #e7a767;
    --color-orange-soft: #fff3e5;
    --shadow-card: 0 10px 24px rgba(52, 91, 116, .045);
    --shadow-hover: 0 16px 30px rgba(52, 91, 116, .075);
    --radius-lg: 24px;
    --radius-md: 20px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--color-ink);
    background:
        radial-gradient(circle at 8% 0%, rgba(168, 221, 242, .26), transparent 28rem),
        linear-gradient(180deg, #fff 0%, #fbfdff 100%);
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    letter-spacing: 0;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
}

button {
    font-family: inherit;
}

.hidden {
    display: none !important;
}

.nowrap {
    white-space: nowrap;
}

.desktop-break {
    display: none;
}

.site-container {
    width: min(100% - 40px, 1160px);
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(219, 233, 241, .82);
    background: rgba(255, 255, 255, .9);
    backdrop-filter: blur(14px);
    padding: 13px 0;
}

.header-inner {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-logo img {
    width: 92px;
    height: 54px;
    object-fit: contain;
    display: block;
}

.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 18px;
}

.site-logo span {
    color: #223044;
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
}

.menu-toggle {
    display: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
}

.header-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 4px 18px;
}

.header-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    border-radius: 999px;
    padding: 7px 2px;
    color: #4f6074;
    font-size: 13px;
    font-weight: 600;
    transition: color .2s ease, background .2s ease, padding .2s ease;
}

.header-nav a:hover {
    color: var(--color-blue-600);
}

.mobile-nav-only {
    display: none !important;
}

.section {
    padding: 72px 0;
}

.section-soft {
    background: rgba(240, 249, 255, .58);
}

.hero-section {
    background:
        linear-gradient(90deg, rgba(255, 255, 255, .96) 0%, rgba(255, 255, 255, .86) 34%, rgba(255, 255, 255, .34) 58%, rgba(255, 255, 255, 0) 100%),
        linear-gradient(180deg, rgba(240, 249, 255, .38), rgba(255, 255, 255, .08)),
        url('../images/ronilog-hero-steps.png') center right / cover no-repeat;
    background-attachment: fixed;
    min-height: min(720px, calc(100vh - 81px));
    padding: clamp(86px, 11vw, 142px) 0 clamp(88px, 11vw, 136px);
}

.hero-grid {
    display: grid;
    gap: 42px;
    align-items: center;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--color-blue-600);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .04em;
}

.hero-copy h1,
.section-heading h2,
.diagnosis-start h2,
.profile-card h2,
.final-cta h2 {
    margin: 0;
    color: var(--color-ink);
    font-weight: 700;
    line-height: 1.34;
    letter-spacing: 0;
    line-break: strict;
}

.hero-copy h1 {
    font-size: clamp(34px, 5vw, 50px);
    font-weight: 700;
    line-height: 1.32;
    max-width: 660px;
    word-break: keep-all;
    overflow-wrap: normal;
}

.h1-line {
    display: block;
}

.hero-copy h1 .h1-highlight {
    background: linear-gradient(transparent 62%, #d7effa 0);
}

.hero-lead,
.section-heading p,
.diagnosis-start p,
.article-card p,
.learn-card p,
.service-card p,
.profile-card p,
.final-cta p {
    color: var(--color-muted);
    line-height: 1.85;
}

.hero-lead {
    max-width: 560px;
    margin: 24px 0 0;
    font-size: 16px;
    line-height: 1.95;
}

.hero-actions,
.center-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.center-actions {
    justify-content: center;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    border: 0;
    border-radius: 999px;
    padding: 13px 22px;
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    color: #fff;
    background: #5d9cc2;
    box-shadow: 0 8px 16px rgba(78, 145, 187, .14);
}

.button-primary:hover {
    background: #3d82ad;
}

.button-secondary {
    border: 1px solid var(--color-line);
    color: var(--color-ink);
    background: #fff;
}

.quiz-category {
    margin: 0;
    color: var(--color-blue-600);
    font-size: 12px;
    font-weight: 800;
}

.section-heading {
    max-width: 720px;
    margin: 0 auto 34px;
    text-align: center;
}

.heading-break {
    display: none;
}

.section-heading.compact {
    margin-bottom: 24px;
}

.section-heading h2,
.diagnosis-start h2,
.profile-card h2,
.final-cta h2 {
    font-size: clamp(25px, 3.2vw, 35px);
    line-height: 1.5;
}

.section-heading p {
    margin: 14px auto 0;
}

.learn-grid,
.service-grid {
    display: grid;
    gap: 20px;
}

.problem-grid {
    display: grid;
    gap: 18px;
}

.problem-slider-controls {
    display: none;
}

.article-grid {
    display: grid;
    gap: 20px;
}

.roadmap-grid {
    display: grid;
    gap: 20px;
}

.recent-grid {
    display: grid;
    gap: 16px;
}

.problem-card,
.article-card,
.roadmap-card,
.learn-card,
.service-card,
.recent-card,
.diagnosis-panel,
.profile-card,
.final-cta {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, .92);
    box-shadow: var(--shadow-card);
}

.problem-card,
.article-card,
.roadmap-card,
.learn-card,
.service-card,
.recent-card {
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.problem-card:hover,
.article-card:hover,
.roadmap-card:hover,
.learn-card:hover,
.service-card:hover,
.recent-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-blue-300);
    box-shadow: var(--shadow-hover);
}

.problem-card,
.learn-card,
.service-card,
.recent-card {
    padding: 26px;
}

.problem-card {
    display: flex;
    min-width: 0;
    min-height: 100%;
    flex-direction: column;
    color: inherit;
    text-decoration: none;
}

.problem-card h3,
.article-card h3,
.roadmap-card h3,
.learn-card h3,
.service-card h3,
.recent-card h3 {
    margin: 14px 0 0;
    font-size: 19px;
    line-height: 1.55;
    font-weight: 700;
    line-break: strict;
    overflow-wrap: anywhere;
}

.article-card h3,
.recent-card h3 {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.problem-card p,
.service-card p {
    margin: 12px 0 0;
}

.problem-summary {
    color: var(--color-muted);
}

.problem-detail {
    margin-top: 2px;
}

.problem-steps {
    display: grid;
    gap: 8px;
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
}

.problem-steps li {
    position: relative;
    padding-left: 22px;
    color: var(--color-ink);
    font-size: 13px;
    line-height: 1.65;
}

.problem-steps li::before {
    position: absolute;
    top: .68em;
    left: 2px;
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: var(--color-blue-300);
    content: "";
}

.problem-card .text-link {
    margin-top: auto;
    padding-top: 18px;
}

.problem-card p,
.learn-card p,
.service-card p {
    font-size: 14px;
    line-height: 1.85;
}

.card-kicker,
.learn-kicker {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    border-radius: 999px;
    background: var(--color-blue-50);
    padding: 5px 10px;
    color: #4e7f9d;
    font-size: 12px;
    font-weight: 700;
}

.learn-kicker {
    background: var(--color-mint);
    color: #3f7d6c;
}

.icon-badge {
    display: grid;
    width: 58px;
    height: 58px;
    place-items: center;
    border-radius: 20px;
    font-weight: 900;
}

.icon-blue {
    color: var(--color-blue-600);
    background: var(--color-blue-50);
}

.icon-mint {
    color: #368a75;
    background: var(--color-mint);
}

.icon-orange {
    color: #bd7331;
    background: var(--color-orange-soft);
}

.text-link {
    display: inline-flex;
    margin-top: 16px;
    color: var(--color-blue-600);
    font-weight: 800;
}

.text-link::after {
    content: "→";
    margin-left: 6px;
}

.diagnosis-panel {
    padding: clamp(24px, 4vw, 44px);
    background:
        linear-gradient(135deg, rgba(240, 249, 255, .92), rgba(255, 250, 240, .88)),
        #fff;
}

.diagnosis-start {
    display: grid;
    gap: 26px;
    align-items: center;
}

.progress-wrap {
    margin-top: 24px;
}

.progress-meta {
    display: flex;
    justify-content: space-between;
    color: var(--color-muted);
    font-size: 13px;
    font-weight: 800;
}

.progress-track {
    height: 8px;
    margin-top: 9px;
    overflow: hidden;
    border-radius: 999px;
    background: #deedf6;
}

.progress-bar {
    width: 0;
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--color-blue-300), var(--color-blue-600));
    transition: width .35s ease;
}

.quiz-step {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    background: #fff;
    padding: 24px;
}

.quiz-head,
.quiz-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.quiz-head {
    border-bottom: 1px solid var(--color-line);
    padding-bottom: 18px;
}

.quiz-head h3 {
    margin: 4px 0 0;
    font-size: 20px;
    font-weight: 700;
}

.quiz-count,
.time-left {
    color: var(--color-muted);
    font-size: 13px;
    font-weight: 800;
}

.question-text {
    margin: 22px 0;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.55;
}

.answer-grid {
    display: grid;
    gap: 12px;
}

.answer-button {
    width: 100%;
    border: 1px solid var(--color-line);
    border-radius: 18px;
    background: #fff;
    padding: 15px 16px;
    color: var(--color-ink);
    text-align: left;
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.answer-button:hover,
.answer-button.selected {
    border-color: var(--color-blue-600);
    color: #fff;
    background: var(--color-blue-600);
}

.quiz-nav {
    margin-top: 22px;
    border-top: 1px solid var(--color-line);
    padding-top: 18px;
}

.nav-button.disabled {
    opacity: .45;
    cursor: not-allowed;
}

.result-list {
    display: grid;
    gap: 16px;
}

.result-card {
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    background: #fff;
    padding: 22px;
}

.result-card h3 {
    margin: 8px 0 0;
    font-size: 22px;
    font-weight: 700;
    line-height: 1.5;
}

.result-links {
    display: grid;
    gap: 10px;
    margin-top: 16px;
}

.result-links a {
    border: 1px solid var(--color-line);
    border-radius: 16px;
    padding: 14px 16px;
    font-weight: 800;
}

.loading-text {
    grid-column: 1 / -1;
    margin: 0;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, .72);
    padding: 22px;
    color: var(--color-muted);
    text-align: center;
    font-weight: 700;
}

.post-card {
    display: flex;
    min-width: 0;
    overflow: hidden;
    flex-direction: column;
    padding: 0;
}

.post-thumb {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    border-bottom: 1px solid var(--color-line);
    background: var(--color-blue-50);
    object-fit: cover;
}

.placeholder-thumb {
    display: grid;
    place-items: center;
    background:
        linear-gradient(135deg, rgba(240, 249, 255, .95), rgba(234, 248, 243, .9));
    color: var(--color-blue-600);
}

.placeholder-thumb span {
    border-radius: 999px;
    background: rgba(255, 255, 255, .72);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 800;
}

.post-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 0 18px 20px;
}

.tag {
    display: inline-flex;
    width: fit-content;
    margin-top: 16px;
    border-radius: 999px;
    background: var(--color-blue-50);
    color: var(--color-blue-600);
    padding: 5px 11px;
    font-size: 12px;
    font-weight: 900;
}

.article-card p {
    margin: 10px 0 0;
    font-size: 14px;
    line-height: 1.8;
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.roadmap-card {
    display: flex;
    flex-direction: column;
    padding: 30px;
}

.roadmap-card h3 {
    margin-top: 0;
    font-size: 18px;
}

.roadmap-card p {
    margin: 12px 0 0;
    color: var(--color-muted);
    font-size: 14px;
    line-height: 1.85;
}

.roadmap-card ol {
    margin: 22px 0 0;
    padding: 0;
    list-style: none;
    counter-reset: step;
}

.roadmap-card li {
    position: relative;
    min-height: 30px;
    margin-top: 12px;
    padding-left: 32px;
    color: #4f6074;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.65;
    counter-increment: step;
}

.roadmap-card li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 1px;
    display: grid;
    width: 22px;
    height: 22px;
    place-items: center;
    border-radius: 999px;
    color: #4e91bb;
    background: var(--color-blue-50);
    font-size: 11px;
    font-weight: 700;
}

.roadmap-link {
    display: inline-flex;
    width: fit-content;
    align-items: center;
    margin-top: auto;
    padding-top: 22px;
    color: var(--color-blue-600);
    font-size: 14px;
    font-weight: 600;
}

.roadmap-link::after {
    content: "→";
    margin-left: 7px;
}

.learn-card p {
    margin: 10px 0 0;
}

.profile-card {
    display: grid;
    gap: 24px;
    align-items: center;
    padding: clamp(24px, 4vw, 40px);
}

.profile-icon {
    display: grid;
    width: 110px;
    height: 110px;
    place-items: center;
    overflow: hidden;
    border: 8px solid #fff;
    border-radius: 999px;
    background: var(--color-blue-50);
    box-shadow: var(--shadow-card);
}

.profile-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-social {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.profile-social a {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(149, 188, 211, .52);
    border-radius: 999px;
    background: rgba(255, 255, 255, .82);
    padding: 8px 14px;
    color: var(--color-ink);
    font-size: 13px;
    font-weight: 700;
    line-height: 1;
    transition: background-color .2s ease, border-color .2s ease, color .2s ease, transform .2s ease;
}

.profile-social a:hover,
.profile-social a:focus-visible {
    border-color: var(--color-blue-300);
    background: var(--color-blue-50);
    color: var(--color-blue-600);
    transform: translateY(-1px);
}

.profile-social a:focus-visible {
    outline: 3px solid rgba(89, 160, 204, .24);
    outline-offset: 3px;
}

.service-card {
    background: #fff;
}

.recent-card h3 {
    margin-top: 12px;
}

.recent-card .post-card-body {
    padding-bottom: 22px;
}

.final-cta-section {
    padding-top: 36px;
}

.final-cta {
    padding: clamp(28px, 5vw, 54px);
    text-align: center;
    background:
        radial-gradient(circle at 14% 20%, rgba(168, 221, 242, .35), transparent 18rem),
        linear-gradient(135deg, var(--color-blue-50), var(--color-cream));
}

.final-cta p {
    max-width: 620px;
    margin: 14px auto 0;
}

.final-cta-button {
    margin-top: 28px;
}

.site-footer {
    padding: 54px 0;
    text-align: center;
}

.site-footer img {
    width: 118px;
}

.site-footer p {
    color: var(--color-muted);
    font-weight: 800;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 18px;
    margin: 22px auto 18px;
}

.footer-nav a {
    color: #64748b;
    font-size: 13px;
    font-weight: 600;
    transition: color .2s ease;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
    color: var(--color-blue-600);
}

.site-footer small {
    color: #94a3b8;
    font-weight: 700;
}

.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn .45s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (min-width: 700px) {
    .desktop-break {
        display: block;
    }

    .article-grid,
    .learn-grid,
    .service-grid,
    .recent-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .problem-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .diagnosis-start {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .profile-card {
        grid-template-columns: auto minmax(0, 1fr);
    }
}

@media (min-width: 960px) {
    .hero-grid {
        grid-template-columns: minmax(390px, 560px) minmax(0, 1fr);
    }

    .article-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .roadmap-grid,
    .learn-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .service-grid,
    .recent-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 1100px) {
    .problem-grid {
        display: flex;
        align-items: stretch;
        gap: 14px;
    }

    .problem-card {
        min-height: 380px;
        flex: 1 1 0;
        padding: 24px 22px;
        overflow: hidden;
        transition:
            flex .42s cubic-bezier(.22, .72, .2, 1),
            background-color .24s ease,
            border-color .24s ease,
            box-shadow .24s ease,
            transform .24s ease;
    }

    .problem-card:hover,
    .problem-card:focus-visible {
        flex: 2.25 1 0;
        background: linear-gradient(180deg, rgba(239, 247, 255, .96), rgba(255, 255, 255, .96));
        transform: translateY(-2px);
    }

    .problem-card:focus-visible {
        outline: 3px solid rgba(89, 160, 204, .28);
        outline-offset: 4px;
    }

    .problem-grid:hover .problem-card:not(:hover),
    .problem-grid:focus-within .problem-card:not(:focus-visible) {
        flex: .86 1 0;
    }

    .problem-card h3 {
        min-height: 88px;
        font-size: 17px;
        line-height: 1.65;
    }

    .problem-card .card-kicker {
        padding: 4px 9px;
        color: #5d8daa;
        font-size: 11px;
        font-weight: 700;
    }

    .problem-summary {
        display: -webkit-box;
        overflow: hidden;
        min-height: 52px;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 2;
    }

    .problem-detail {
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transform: translateY(8px);
        transition: max-height .42s cubic-bezier(.22, .72, .2, 1), opacity .24s ease, transform .32s ease;
    }

    .problem-card:hover .problem-detail,
    .problem-card:focus-visible .problem-detail {
        max-height: 230px;
        opacity: 1;
        transform: translateY(0);
    }

    .problem-card .text-link {
        opacity: 0;
        transform: translateY(6px);
        transition: opacity .22s ease, transform .28s ease;
    }

    .problem-card:hover .text-link,
    .problem-card:focus-visible .text-link {
        opacity: 1;
        transform: translateY(0);
    }

    .problem-card:hover .problem-summary,
    .problem-card:focus-visible .problem-summary {
        -webkit-line-clamp: 3;
    }
}

@media (max-width: 699px) {
    .site-container {
        width: min(100% - 32px, 1160px);
    }

    .site-header {
        padding: 12px 0;
        position: relative;
    }

    .header-inner {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px 14px;
    }

    .site-logo img {
        width: 86px;
        height: 48px;
    }

    .site-logo {
        gap: 0;
    }

    .site-logo span {
        display: none;
    }

    .menu-toggle {
        display: inline-flex;
        width: 42px;
        height: 42px;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        gap: 5px;
        border: 1px solid rgba(149, 188, 211, .58);
        border-radius: 999px;
        background: rgba(255, 255, 255, .82);
        color: var(--color-ink);
        cursor: pointer;
    }

    .menu-toggle-line {
        display: block;
        width: 17px;
        height: 2px;
        border-radius: 999px;
        background: currentColor;
        transition: transform .2s ease, opacity .2s ease;
    }

    .site-header.nav-open .menu-toggle-line:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .site-header.nav-open .menu-toggle-line:nth-child(2) {
        opacity: 0;
    }

    .site-header.nav-open .menu-toggle-line:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .header-nav {
        display: none;
        width: 100%;
        gap: 2px;
        border: 1px solid rgba(219, 233, 241, .88);
        border-radius: 18px;
        background: rgba(255, 255, 255, .96);
        padding: 10px;
        box-shadow: var(--shadow-card);
    }

    .site-header.nav-open .header-nav {
        display: grid;
    }

    .mobile-nav-only {
        display: flex !important;
    }

    .header-nav a {
        min-height: 42px;
        justify-content: flex-start;
        padding: 9px 12px;
        font-size: 13px;
    }

    .problem-grid {
        display: block;
        gap: 0;
    }

    .problem-card {
        display: none;
        min-width: 100%;
        flex: 0 0 100%;
    }

    .problem-card.is-active {
        display: flex;
        animation: problemFadeIn .72s ease;
    }

    .problem-card:hover {
        transform: none;
    }

    .problem-slider-controls {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 14px;
        margin-top: 18px;
    }

    .problem-slider-button {
        display: inline-flex;
        width: 40px;
        height: 40px;
        align-items: center;
        justify-content: center;
        border: 1px solid rgba(149, 188, 211, .58);
        border-radius: 999px;
        background: rgba(255, 255, 255, .9);
        color: var(--color-blue-600);
        font: inherit;
        font-weight: 700;
    }

    .problem-slider-button:disabled {
        opacity: .42;
    }

    .problem-slider-dots {
        display: inline-flex;
        align-items: center;
        gap: 7px;
    }

    .problem-slider-dot {
        width: 7px;
        height: 7px;
        border-radius: 999px;
        background: #c9deea;
        transition: width .2s ease, background .2s ease;
    }

    .problem-slider-dot.is-active {
        width: 22px;
        background: var(--color-blue-600);
    }

    @keyframes problemFadeIn {
        from {
            opacity: 0;
        }
        to {
            opacity: 1;
        }
    }

    .hero-section {
        min-height: auto;
        padding: 58px 0 220px;
        background:
            linear-gradient(180deg, rgba(255, 255, 255, .96) 0%, rgba(255, 255, 255, .9) 38%, rgba(255, 255, 255, .44) 68%, rgba(255, 255, 255, .1) 100%),
            linear-gradient(90deg, rgba(255, 255, 255, .8), rgba(255, 255, 255, .16)),
            url('../images/ronilog-hero-steps.png') 58% bottom / cover no-repeat;
        background-attachment: scroll;
    }

    .hero-copy {
        text-align: center;
    }

    .hero-copy h1 {
        font-size: 30px;
        max-width: 360px;
        margin-inline: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .button {
        width: 100%;
    }

    .hero-lead {
        margin-top: 20px;
    }

    .section {
        padding: 56px 0;
    }

    .heading-break {
        display: block;
    }

    .quiz-nav {
        align-items: stretch;
        flex-direction: column;
    }

    .time-left {
        text-align: center;
    }
}