:root {
    --color-bg: #f4f5f9;
    --color-surface: #ffffff;
    --color-text: #1d1d33;
    --color-text-muted: #5b5b75;
    --color-border: #e6e7ef;
    --color-primary: #6c3df0;
    --color-primary-soft: #efeaff;
    --color-accent-start: #ec3ea0;
    --color-accent-end: #6c3df0;
    --color-danger: #e71d36;
    --color-danger-soft: #fde4e7;
    --shadow-card: 0 12px 32px rgba(28, 28, 60, 0.08);
    --shadow-image: 0 18px 50px rgba(28, 28, 60, 0.18);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --content-width: 1120px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: min(100% - 48px, var(--content-width));
    margin: 0 auto;
}

.hero {
    background:
        radial-gradient(1200px 480px at 80% -10%, rgba(108, 61, 240, 0.18), transparent 70%),
        radial-gradient(900px 380px at 0% 0%, rgba(236, 62, 160, 0.16), transparent 65%),
        linear-gradient(180deg, #ffffff 0%, #f4f5f9 100%);
    padding: 56px 0 72px;
    border-bottom: 1px solid var(--color-border);
}

.hero__brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.hero__logo {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(90deg, #ff4d6d, #ec3ea0);
    color: #fff;
    font-weight: 800;
    font-size: 22px;
    letter-spacing: 0.5px;
    padding: 6px 14px;
    border-radius: 12px;
    box-shadow: 0 6px 16px rgba(236, 62, 160, 0.35);
}

.hero__logo-accent {
    margin-left: 4px;
    color: #fff;
}

.hero__title {
    font-size: clamp(28px, 4vw, 44px);
    line-height: 1.15;
    margin: 0 0 16px;
    letter-spacing: -0.02em;
    background: linear-gradient(90deg, var(--color-accent-start), var(--color-accent-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero__subtitle {
    font-size: clamp(16px, 1.6vw, 18px);
    color: var(--color-text-muted);
    max-width: 720px;
    margin: 0 0 28px;
}

.hero__nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero__nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    background: var(--color-surface);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    border: 1px solid var(--color-border);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.hero__nav-link::before {
    content: "→";
    color: var(--color-primary);
    font-weight: 700;
}

.hero__nav-link:hover {
    border-color: var(--color-primary);
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(108, 61, 240, 0.12);
}

.section {
    padding: 80px 0 32px;
}

.section + .section {
    border-top: 1px solid var(--color-border);
}

.section__head {
    max-width: 720px;
    margin-bottom: 48px;
}

.section__eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    padding: 6px 12px;
    border-radius: 999px;
    margin-bottom: 16px;
}

.section__eyebrow--danger {
    color: var(--color-danger);
    background: var(--color-danger-soft);
}

.section__title {
    font-size: clamp(24px, 3vw, 32px);
    margin: 0 0 12px;
    letter-spacing: -0.01em;
}

.section__lead {
    font-size: 17px;
    color: var(--color-text-muted);
    margin: 0;
}

.steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 56px;
}

.step {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 56px;
    align-items: center;
    background: var(--color-surface);
    padding: 36px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--color-border);
}

.step--reverse {
    grid-template-columns: 360px 1fr;
}

.step--reverse .step__text {
    order: 2;
}

.step--reverse .step__media {
    order: 1;
}

.step__badge {
    display: inline-block;
    padding: 6px 14px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    border-radius: 999px;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.step__badge--danger {
    color: var(--color-danger);
    background: var(--color-danger-soft);
}

.step__title {
    font-size: clamp(20px, 2.2vw, 26px);
    margin: 0 0 14px;
    letter-spacing: -0.01em;
}

.step__desc {
    font-size: 16px;
    color: var(--color-text-muted);
    margin: 0 0 12px;
}

.step__desc--muted {
    font-size: 14px;
    color: #8b8ba6;
    font-style: italic;
}

.step__list {
    margin: 0 0 16px;
    padding-left: 22px;
    color: var(--color-text);
    font-size: 16px;
}

.step__list li {
    margin-bottom: 8px;
}

.step__list li::marker {
    color: var(--color-primary);
    font-weight: 700;
}

.step__text strong {
    color: var(--color-text);
    font-weight: 700;
}

.step__media {
    margin: 0;
    text-align: center;
}

.step__media img {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    border-radius: 32px;
    box-shadow: var(--shadow-image);
    background: #000;
}

.step__media figcaption {
    margin-top: 16px;
    font-size: 14px;
    color: var(--color-text-muted);
    font-style: italic;
}

.callout {
    margin-top: 56px;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    font-size: 15px;
    color: var(--color-text);
    line-height: 1.6;
}

.callout--info {
    border-left: 4px solid var(--color-primary);
    background: linear-gradient(90deg, rgba(108, 61, 240, 0.06), rgba(108, 61, 240, 0));
}

.callout--danger {
    border-left: 4px solid var(--color-danger);
    background: linear-gradient(90deg, rgba(231, 29, 54, 0.07), rgba(231, 29, 54, 0));
}

.callout strong {
    color: var(--color-text);
}

.callout--danger strong {
    color: var(--color-danger);
}

.footer {
    margin-top: 80px;
    padding: 32px 0 48px;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}

.footer__inner {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: space-between;
    color: var(--color-text-muted);
    font-size: 14px;
}

@media (max-width: 880px) {
    .step,
    .step--reverse {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 28px;
    }

    .step--reverse .step__text {
        order: 2;
    }

    .step--reverse .step__media {
        order: 1;
    }

    .step__media img {
        max-width: 280px;
    }

    .section {
        padding: 56px 0 16px;
    }

    .steps {
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        width: min(100% - 32px, var(--content-width));
    }

    .hero {
        padding: 40px 0 56px;
    }

    .step,
    .step--reverse {
        padding: 22px;
    }
}