body {
    background:
        radial-gradient(circle at 12% -4%, rgba(59, 130, 246, 0.22), transparent 34%),
        radial-gradient(circle at 88% 8%, rgba(59, 130, 246, 0.12), transparent 24%),
        linear-gradient(180deg, #f6f9ff 0, #ffffff 320px);
}

.site-header {
    position: relative;
    z-index: 10;
    background: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid rgba(229, 231, 235, 0.84);
}

.site-header__inner {
    min-height: 78px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0;
    text-decoration: none;
    color: var(--text);
    font-size: 1.08rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.logo-mark {
    width: 110px;
    height: 50px;
    object-fit: contain;
}

.logo-badge {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 14px;
    border: 1px solid #dee7f2;
    border-radius: 999px;
    background: rgb(146 160 181 / 8%);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero__eyebrow,
.hero__visual-badge,
.hero__visual-note,
.section-kicker {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero {
    padding: 52px 0 38px;
}

.hero__layout {
    display: grid;
    gap: 26px;
}

.hero__content {
    position: relative;
}

.hero__eyebrow,
.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    margin-bottom: 16px;
}

.hero__eyebrow::before,
.section-kicker::before {
    content: "";
    width: 30px;
    height: 1px;
    background: currentColor;
}

h1 {
    margin: 0 0 16px;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1.04;
    letter-spacing: -0.04em;
    /* max-width: 11ch; */
}

.lead {
    margin: 0;
    color: var(--text-secondary);
    max-width: 64ch;
    font-size: 1.02rem;
}

.hero__chips {
    margin-top: 26px;
    display: grid;
    gap: 12px;
}

.hero__chips-secondary {
    display: none;
}

.hero__chip {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 15px;
    border: 1px solid #deebff;
    border-radius: 14px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 249, 252, 0.96));
    box-shadow: 0 12px 24px rgba(17, 24, 39, 0.05);
}

.hero__chip img {
    width: 30px;
    height: 30px;
    margin-top: -3px;
}

.side-panel__stat strong {
    display: block;
    margin-bottom: 4px;
    color: var(--text);
    font-size: 0.95rem;
}

.side-panel__stat span {
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.hero__side {
    display: grid;
    gap: 18px;
}

.hero__side.hero__side--mobile {
    display: none;
}

.hero__visual,
.hero__form,
.about-card,
.side-panel,
.learn-card,
.audience-card,
.faq-card {
    overflow: hidden;
}

.hero__visual {
    padding: 22px;
    border-radius: 24px;
    border-color: #dbeafe;
    background:
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 34%),
        linear-gradient(145deg, #eef4ff, #ffffff 58%, #f4f9ff);
    box-shadow: 0 24px 44px rgba(59, 130, 246, 0.12);
}

.hero__visual-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.hero__visual-badge,
.hero__visual-note {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: 0 12px;
    border-radius: 999px;
}

.hero__visual-badge {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.08);
}

.hero__visual-note {
    color: var(--text);
    background: rgba(17, 24, 39, 0.05);
}

.hero__book {
    display: block;
    width: 100%;
}

.hero__book-wrap {
    position: relative;
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    overflow: hidden;
}

.hero__visual-grid {
    display: flex;
    width: 100%;
    /* gap: 16px; */
}

.hero__book-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: absolute;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%);
    min-width: 180px;
    z-index: 1;
    background: #fff;
    border-radius: 14px;
    color: var(--accent);
    font-weight: 600;
}

.hero__form {
    padding: 24px;
    border-radius: 24px;
    border-color: #dbeafe;
    background:
        linear-gradient(180deg, #ffffff, #f8fbff),
        linear-gradient(135deg, rgba(59, 130, 246, 0.04), transparent);
    box-shadow: 0 22px 36px rgba(59, 130, 246, 0.1);
}

.form-section {
    display: grid;
}

.form-section__form {
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    scroll-margin-top: 60px;
}

.hero__form-title {
    margin-bottom: 8px;
}

.hero__form-subtitle {
    margin-bottom: 16px;
}

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

label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.92rem;
    font-weight: 600;
}

input[type="text"],
input[type="tel"],
input[type="email"] {
    width: 100%;
    min-height: 50px;
    padding: 0 15px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #ffffff;
    color: var(--text);
    font: inherit;
}

input:focus-visible {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.check-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.check-row input {
    margin-top: 3px;
}

.form-note {
    margin: 2px 0 0;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.5;
}

.btn--wide {
    width: 100%;
}

.error {
    display: none;
    margin: 4px 0 0;
    color: #b91c1c;
    font-size: 0.84rem;
}

.error.is-visible {
    display: block;
}

.form-status {
    margin-top: 10px;
}

.hero__form.is-submitting {
    pointer-events: none;
}

.hero__form .btn.is-loading {
    position: relative;
    color: rgba(255, 255, 255, 0.92);
}

.hero__form .btn.is-loading::after {
    content: "";
    width: 16px;
    height: 16px;
    margin-left: 10px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: #ffffff;
    animation: button-spin 0.8s linear infinite;
}

@keyframes button-spin {
    to {
        transform: rotate(360deg);
    }
}

#book-form button.btn.btn--wide:hover,
#book-form button.btn.btn--wide:focus-visible {
    transform: translateY(-2px);
}

.section--soft {
    position: relative;
    background:
        linear-gradient(180deg, rgba(247, 249, 252, 0.9), rgba(255, 255, 255, 0.95));
}

.about-wrap,
.learn-wrap,
.faq-grid,
.audience-grid {
    display: grid;
    gap: 18px;
}

.about-card,
.side-panel,
.learn-card,
.audience-card,
.faq-card {
    padding: 26px;
    border-radius: 22px;
}

.about-card,
.learn-card {
    background: linear-gradient(180deg, #ffffff, #f9fbff);
}

.side-panel {
    background:
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.14), transparent 28%),
        linear-gradient(180deg, #ffffff, #f7f9fc);
}

.side-panel__title,
.learn-card__title {
    margin: 0 0 12px;
    font-size: 1.35rem;
    line-height: 1.2;
}

.side-panel__stats {
    margin-top: 20px;
    display: grid;
    gap: 12px;
}

.side-panel__stat {
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid #e6eefc;
    background: rgba(255, 255, 255, 0.82);
}

.audience-card {
    position: relative;
    background:
        linear-gradient(180deg, #ffffff, #f7fbff);
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.audience-card:hover {
    transform: translateY(-6px);
    border-color: #dbeafe;
    box-shadow: 0 20px 34px rgba(17, 24, 39, 0.12);
}

.audience-card__icon {
    width: 54px;
    height: 54px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    border-radius: 16px;
    background: linear-gradient(180deg, #eef5ff, #ffffff);
    border: 1px solid #dbeafe;
    box-shadow: 0 12px 24px rgba(59, 130, 246, 0.12);
}

.audience-card__icon img {
    width: 34px;
    height: 34px;
}

.learn-card--accent {
    background:
        radial-gradient(circle at top right, rgba(59, 130, 246, 0.18), transparent 28%),
        linear-gradient(180deg, #ffffff, #f5f9ff);
}

.learn-list {
    margin: 0;
    padding-left: 22px;
    display: grid;
    gap: 10px;
}

.learn-list li::marker {
    color: var(--accent);
}

.learn-card__visual {
    margin-top: 18px;
}

.reviews {
    position: relative;
    overflow: hidden;
    padding: 18px 0;
    background:
        linear-gradient(180deg, #f6faff, #ffffff);
}

.reviews::before,
.reviews::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 84px;
    z-index: 2;
    pointer-events: none;
}

.reviews::before {
    left: 0;
    background: linear-gradient(90deg, #f7fbff 0%, rgba(247, 251, 255, 0) 100%);
}

.reviews::after {
    right: 0;
    background: linear-gradient(270deg, #ffffff 0%, rgba(255, 255, 255, 0) 100%);
}

.reviews__row {
    /* overflow: hidden; */
}

.reviews__track {
    display: flex;
    width: max-content;
    gap: 14px;
    padding: 0 16px;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}

.reviews__row--ltr .reviews__track {
    animation-name: slide-ltr;
    animation-duration: 44s;
}

.reviews__row--rtl .reviews__track {
    animation-name: slide-rtl;
    animation-duration: 48s;
}

.reviews:hover .reviews__track,
.reviews:focus-within .reviews__track,
.reviews.is-paused .reviews__track {
    animation-play-state: paused;
}

.review-card {
    width: min(330px, 84vw);
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 8px 18px rgba(17, 24, 39, 0.07);
}

.review-card__head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.review-card__avatar {
    width: 38px;
    height: 38px;
    border-radius: 999px;
    border: 1px solid var(--border);
}

.review-card__name {
    font-size: 0.95rem;
    font-weight: 600;
}

.review-card__text {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.93rem;
}

.faq-grid {
    grid-template-columns: 1fr;
}

.faq-card {
    background:
        linear-gradient(180deg, #ffffff, #f9fbff);
}

.faq-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 10px;
}

.faq-title img {
    width: 26px;
    height: 26px;
}

.footer {
    margin-top: 24px;
    padding: 28px 0 38px;
    border-top: 1px solid var(--border);
    background: #ffffff;
}

.footer__meta {
    display: grid;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.disclaimer {
    margin: 0;
    font-size: 0.9rem;
}

@keyframes slide-ltr {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(-50%);
    }
}

@keyframes slide-rtl {
    from {
        transform: translateX(-50%);
    }

    to {
        transform: translateX(0);
    }
}

@media (max-width: 639px) {
    .hero__side.hero__side--mobile {
        display: grid;
        width: 100%;
        max-width: 100%;
        margin: 0;
    }

    .hero__side.hero__side--desktop {
        display: none;
    }

    .audience-card h3 {
        margin: 0;
        line-height: 1.2;
    }

    .audience-card p {
        grid-column: 1 / -1;
        margin: .5em 0 0 0;
    }

    .audience-card__icon {
        margin-bottom: 0;
    }

    .audience-grid {
        display: flex;
        gap: 14px;
        overflow-x: auto;
        overflow-y: hidden;
        padding-bottom: 6px;
        scroll-snap-type: x proximity;
        -webkit-overflow-scrolling: touch;
    }

    .audience-grid::-webkit-scrollbar {
        display: none;
    }

    .audience-card {
        flex: 0 0 84%;
        scroll-snap-align: start;
        display: grid;
        grid-template-columns: 54px minmax(0, 1fr);
        align-items: center;
        column-gap: 12px;
        box-shadow: none;
    }

    .learn-card__visual img {
        max-width: 300px;
    }

    .logo-badge {
        font-size: 0.6rem;
    }

    .site-header__inner {
        min-height: 68px;
    }

    .site-header__meta {
        display: none;
    }

    .logo {
        gap: 0;
        font-size: 1rem;
    }

    .logo-mark {
        width: 110px;
        height: 50px;
    }

    .hero {
        padding: 28px 0 24px;
    }

    .hero__layout {
        gap: 18px;
    }

    .hero__content {
        display: grid;
        gap: 16px;
    }

    .hero__eyebrow {
        margin-bottom: 0;
        font-size: 0.72rem;
        letter-spacing: 0.06em;
    }

    .lead {
        font-size: 0.96rem;
    }

    .hero__chips {
        margin-top: 0;
        gap: 10px;
    }

    .hero__chip {
        padding: 12px 14px;
        border-radius: 12px;
        font-size: 0.92rem;
    }

    .hero__side {
        gap: 14px;
    }

    .hero__visual {
        padding: 16px;
        border-radius: 20px;
    }

    .hero__visual,
    .hero__form,
    .about-card,
    .side-panel,
    .learn-card,
    .audience-card,
    .faq-card {
        padding: 22px;
    }

    .hero__book-wrap {
        max-width: 100%;
    }

    .hero__form {
        padding: 20px;
        border-radius: 20px;
        box-shadow: 0 18px 32px rgba(59, 130, 246, 0.12);
    }

    .hero__book-cta {
        bottom: 18px;
        min-width: 164px;
        min-height: 44px;
        padding: 0 16px;
    }

    .hero__form-title {
        font-size: 1.5rem;
    }

    .form-grid {
        gap: 10px;
    }

    .reviews {
        overflow-x: auto;
        overflow-y: hidden;
        padding: 4px 0 10px;
        border-radius: 18px;
        scroll-snap-type: x proximity;
        -webkit-overflow-scrolling: touch;
    }

    .reviews::before,
    .reviews::after {
        display: none;
    }

    .reviews::-webkit-scrollbar {
        display: none;
    }

    .reviews__row+.reviews__row {
        display: none;
    }

    .reviews__row {
        overflow: visible;
    }

    .reviews__track {
        width: max-content;
        gap: 12px;
        padding: 0 20px 0 0;
        animation: none;
    }

    .reviews__row--ltr .reviews__track {
        animation: none;
    }

    .review-card {
        width: min(300px, 84vw);
        padding: 16px;
        scroll-snap-align: start;
        box-shadow: none;
    }

    .faq-card {
        border-radius: 18px;
    }

    .footer {
        margin-top: 12px;
        padding-top: 22px;
    }
}

@media (max-width: 1024px) {
    .section {
        padding: 30px 0;
    }

    .hero__side {
        width: 100%;
        max-width: 440px;
        margin: 0 auto;
    }

    .hero__book-wrap {
        border-radius: 14px;
    }
}

@media (min-width: 640px) and (max-width: 768px) {
    .audience-card h3 {
        margin: 0;
    }

    .audience-card p {
        margin: .5em 0 0 0;
    }

    .learn-card__visual img {
        max-width: 300px;
    }
}

@media (max-width: 768px) {

    a,
    button,
    input,
    label,
    .btn,
    .hero__book-cta {
        -webkit-tap-highlight-color: transparent;
    }

    .btn:hover,
    .btn:focus-visible,
    #book-form button.btn.btn--wide:hover,
    #book-form button.btn.btn--wide:focus-visible {
        transform: none;
        box-shadow: 0 12px 26px rgba(37, 99, 235, 0.32);
        filter: none;
    }

    .btn:active,
    #book-form button.btn.btn--wide:active {
        transform: translateY(-2px);
        box-shadow: 0 20px 34px rgba(37, 99, 235, 0.38);
        filter: brightness(1.04);
    }

    .hero__book-cta:hover,
    .hero__book-cta:focus-visible {
        transform: translateX(-50%);
    }

    .hero__book-cta:active {
        transform: translateY(-2px) translateX(-50%);
    }

    .faq-title {
        display: block;
    }

    .faq-title img {
        float: left;
        margin: 0 8px 2px 0;
    }
}

@media (min-width: 740px) {
    .hero {
        padding-top: 66px;
    }

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

    .reviews__row--ltr .reviews__track {
        animation-duration: 50s;
    }

    .reviews__row--rtl .reviews__track {
        animation-duration: 54s;
    }
}

@media (min-width: 768px) {
    .hero__layout {
        grid-template-columns: minmax(0, 1.05fr) minmax(360px, 440px);
        align-items: stretch;
        gap: 28px;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .hero {
        padding: 42px 0 28px;
    }

    .hero__layout {
        grid-template-columns: minmax(0, 1fr) minmax(280px, 340px);
        align-items: start;
        gap: 24px;
    }

    .hero__content {
        display: grid;
        gap: 18px;
    }

    .hero__eyebrow {
        margin-bottom: 0;
    }

    h1 {
        font-size: clamp(2.2rem, 4.8vw, 3rem);
    }

    .lead {
        max-width: 42ch;
        font-size: 1rem;
    }

    .hero__chips {
        margin-top: 2px;
        gap: 10px;
    }

    .hero__chips .hero__chip:nth-child(3),
    .hero__chips .hero__chip:nth-child(4) {
        display: none;
    }

    .hero__chip {
        padding: 13px 14px;
    }

    .hero__chips-secondary {
        display: grid;
        gap: 12px;
        margin-top: 18px;
    }

    .hero__chips-secondary .hero__chip {
        width: 100%;
    }

    .hero__side {
        width: auto;
        max-width: none;
        margin: 0;
        align-self: stretch;
    }

    .hero__visual {
        height: 100%;
        display: flex;
        flex-direction: column;
        padding: 18px;
        border-radius: 22px;
    }

    .hero__visual-head {
        margin-bottom: 12px;
    }

    .hero__visual-badge,
    .hero__visual-note {
        min-height: 30px;
        padding: 0 10px;
        font-size: 0.72rem;
    }

    .hero__book-wrap {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 100%;
        border-radius: 16px;
    }

    .hero__visual-grid {
        display: flex;
        flex: 1;
        width: 100%;
    }

    .hero__book {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .hero__book-cta {
        bottom: 18px;
        min-width: 168px;
    }
}

@media (max-width: 767px),
(min-width: 1024px) {
    .hero__chips-secondary {
        display: none;
    }
}

@media (min-width: 1024px) {
    .hero__side {
        align-self: stretch;
    }

    .hero__visual {
        height: 100%;
        display: flex;
        flex-direction: column;
    }

    .hero__visual-grid {
        display: flex;
        flex: 1;
        width: 100%;
    }

    .hero__book-wrap {
        display: block;
        width: 100%;
        height: 100%;
    }
}

@media (min-width: 1025px) {
    .about-wrap {
        grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    }

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

@media (min-width: 1440px) {
    .hero__book-wrap {
        border-radius: 20px;
    }
}

@media (min-width: 1024px) {
    .learn-wrap {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero__book {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
}