:root {
    --blue: #2563eb;
    --blue-dark: #1d4ed8;
    --navy: #0f172a;
    --text: #334155;
    --muted: #64748b;
    --border: #e2e8f0;
    --light-blue: #eff6ff;
    --white: #ffffff;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", sans-serif;
    color: var(--navy);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
}


/* =========================
   HERO
========================= */

.hero {
    min-height: 760px;
    display: flex;
    align-items: center;
    padding: 60px 0;

    background:
        radial-gradient(
            circle at 82% 35%,
            #dbeafe 0,
            #eff6ff 25%,
            transparent 50%
        ),
        linear-gradient(
            110deg,
            #ffffff 0%,
            #ffffff 48%,
            #f8fbff 100%
        );

    overflow: hidden;
}

.hero-inner {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;

    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(420px, 0.9fr);
    align-items: center;

    gap: 64px;
}


/* =========================
   BRAND
========================= */

.brand {
    display: flex;
    align-items: center;
    gap: 12px;

    margin-bottom: 38px;

    font-size: 24px;
    font-weight: 700;
}

.brand-mark {
    width: 44px;
    height: 44px;

    display: grid;
    place-items: center;

    flex: 0 0 44px;

    background: var(--blue);
    color: var(--white);

    border-radius: 10px;

    font-weight: 800;
}


/* =========================
   HERO COPY
========================= */

.hero-copy {
    min-width: 0;
    position: relative;
    z-index: 2;
}

.hero h1 {
    max-width: 620px;

    font-size: clamp(44px, 4.6vw, 66px);
    line-height: 1.04;
    letter-spacing: -0.045em;

    font-weight: 800;
}

.hero h1 span {
    color: var(--blue);
}

.hero-subtitle {
    max-width: 560px;

    margin-top: 26px;

    font-size: 20px;
    line-height: 1.55;

    color: var(--text);
}


/* =========================
   BENEFITS
========================= */

.benefits {
    list-style: none;

    margin-top: 30px;

    display: grid;
    gap: 15px;

    font-size: 17px;
    line-height: 1.4;
}

.benefits li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.benefits li::before {
    content: "✓";

    width: 22px;
    height: 22px;

    flex: 0 0 22px;

    display: grid;
    place-items: center;

    margin-top: 1px;

    border-radius: 50%;

    background: var(--blue);
    color: var(--white);

    font-size: 13px;
    font-weight: 700;
}


/* =========================
   PRICE
========================= */

.price {
    display: flex;
    align-items: center;
    gap: 18px;

    margin-top: 34px;
}

.price strong {
    color: var(--blue);

    font-size: 62px;
    line-height: 1;

    letter-spacing: -0.05em;
}

.price span {
    display: block;

    color: var(--blue);

    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.price p {
    margin-top: 5px;

    color: var(--text);
    font-size: 16px;
}


/* =========================
   CTA
========================= */

.primary-button {
    width: 100%;
    max-width: 445px;

    margin-top: 26px;

    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;

    padding: 20px 28px;

    border-radius: 9px;

    background: var(--blue);
    color: var(--white);

    text-decoration: none;
    text-transform: uppercase;

    font-size: 17px;
    font-weight: 700;

    box-shadow: 0 12px 30px rgb(37 99 235 / 20%);

    transition:
        background 150ms ease,
        transform 150ms ease,
        box-shadow 150ms ease;
}

.primary-button:hover {
    background: var(--blue-dark);
    transform: translateY(-1px);
    box-shadow: 0 15px 35px rgb(37 99 235 / 25%);
}

.primary-button span {
    font-size: 24px;
    line-height: 1;
}

.payment-note {
    max-width: 445px;

    margin-top: 13px;

    text-align: center;

    color: var(--muted);
    font-size: 13px;
}


/* =========================
   HERO IMAGE
========================= */

.hero-visual {
    min-width: 0;

    position: relative;
    z-index: 1;

    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.hero-visual img {
    display: block;

    width: 100%;
    max-width: 620px;
    height: auto;

    margin-left: auto;

    object-fit: contain;

    filter: drop-shadow(
        0 22px 28px rgb(15 23 42 / 13%)
    );
}


/* =========================
   FEATURE STRIP
========================= */

.features {
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);

    background: var(--white);
}

.features-inner {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;

    display: grid;
    grid-template-columns: repeat(4, 1fr);

    padding: 34px 0;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;

    padding: 0 28px;

    border-right: 1px solid var(--border);
}

.feature:first-child {
    padding-left: 0;
}

.feature:last-child {
    padding-right: 0;
    border-right: 0;
}

.feature-icon {
    min-width: 44px;
    width: 44px;
    height: 44px;

    display: grid;
    place-items: center;

    color: var(--blue);

    border: 2px solid var(--blue);
    border-radius: 50%;

    font-size: 14px;
    font-weight: 700;
}

.feature h3 {
    margin-bottom: 6px;

    font-size: 16px;
    line-height: 1.2;
}

.feature p {
    color: var(--muted);

    font-size: 13px;
    line-height: 1.5;
}


/* =========================
   TABLET
========================= */

@media (max-width: 1000px) {

    .hero-inner {
        grid-template-columns: minmax(0, 1fr) minmax(350px, 0.8fr);
        gap: 40px;
    }

    .hero h1 {
        font-size: clamp(42px, 5vw, 58px);
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-visual img {
        max-width: 520px;
    }

}


/* =========================
   MOBILE / SMALL TABLET
========================= */

@media (max-width: 850px) {

    .hero {
        min-height: auto;
        padding: 35px 0 55px;
    }

    .hero-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .brand {
        margin-bottom: 30px;
    }

    .hero h1 {
        max-width: 650px;
        font-size: 48px;
    }

    .hero-subtitle {
        max-width: 600px;
    }

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

    .hero-visual img {
        width: 100%;
        max-width: 620px;

        margin: 0 auto;
    }

    .features-inner {
        grid-template-columns: 1fr 1fr;
        gap: 30px 20px;

        padding: 32px 0;
    }

    .feature {
        padding: 0;
        border: 0;
    }

}


/* =========================
   PHONE
========================= */

@media (max-width: 520px) {

    .hero-inner,
    .features-inner {
        width: min(100% - 32px, 1180px);
    }

    .hero {
        padding-top: 26px;
    }

    .brand {
        margin-bottom: 26px;

        font-size: 21px;
    }

    .brand-mark {
        width: 40px;
        height: 40px;
        flex-basis: 40px;
    }

    .hero h1 {
        font-size: 39px;
        line-height: 1.06;
    }

    .hero-subtitle {
        margin-top: 20px;

        font-size: 17px;
    }

    .benefits {
        margin-top: 25px;

        gap: 13px;

        font-size: 15px;
    }

    .price {
        margin-top: 28px;
    }

    .price strong {
        font-size: 54px;
    }

    .price p {
        font-size: 14px;
    }

    .primary-button {
        max-width: none;

        padding: 18px 20px;

        font-size: 15px;
    }

    .payment-note {
        max-width: none;
    }

    .hero-visual {
        margin-top: 5px;
    }

    .features-inner {
        grid-template-columns: 1fr;
    }

}