:root {
    --color-background: #f6f8fb;
    --color-surface: #ffffff;
    --color-primary: #4253ff;
    --color-primary-soft: rgba(66, 83, 255, 0.09);
    --color-text: #1f2933;
    --color-text-muted: #556375;
    --color-border: rgba(31, 41, 51, 0.08);
    --shadow-soft: 0 12px 40px rgba(34, 52, 90, 0.14);
    --max-width: 1080px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--color-text);
    background: var(--color-background);
    line-height: 1.6;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 96px 0;
}

.section__header h2 {
    margin-top: 0;
    margin-bottom: 16px;
    font-size: 2rem;
}

.section__header p {
    margin: 0;
    color: var(--color-text-muted);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(246, 248, 251, 0.94);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    color: inherit;
}

.brand__mark {
    width: 48px;
    height: 48px;
}

.brand__text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.brand__name {
    font-weight: 600;
    letter-spacing: 0.4px;
}

.brand__tagline {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.site-nav {
    display: flex;
    gap: 24px;
}

.site-nav a {
    font-weight: 500;
    color: var(--color-text-muted);
}

.site-nav a:hover {
    color: var(--color-primary);
}

.hero {
    padding: 120px 0 96px;
}

.hero .container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
}

.hero__content h1 {
    font-size: 3rem;
    margin: 16px 0;
}

.hero__lead {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

.hero__eyebrow {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-primary);
}

.hero__card {
    background: var(--color-surface);
    padding: 32px;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.hero__card h2 {
    margin-top: 0;
}

.hero__card ul {
    padding-left: 20px;
    margin-bottom: 16px;
}

.hero__note {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.about__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.about__grid article {
    background: var(--color-surface);
    padding: 28px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 18px 50px rgba(22, 32, 90, 0.07);
}

.about__grid h3 {
    margin-top: 0;
}

.services {
    background: #fff;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.services__item {
    padding: 24px;
    border-radius: 16px;
    background: var(--color-primary-soft);
    border: 1px solid rgba(66, 83, 255, 0.12);
}

.services__item h3 {
    margin-top: 0;
}

.approach {
    background: rgba(66, 83, 255, 0.04);
}

.approach__grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
}

.approach__summary ul {
    padding-left: 20px;
}

.approach__aside {
    background: var(--color-surface);
    padding: 28px;
    border-radius: 16px;
    border: 1px solid rgba(66, 83, 255, 0.12);
    box-shadow: 0 14px 40px rgba(45, 60, 120, 0.12);
}

.approach__note {
    margin: 0;
    color: var(--color-text-muted);
}

.credentials {
    background: #fff;
}

.credentials__card {
    background: linear-gradient(135deg, rgba(66, 83, 255, 0.08), rgba(66, 83, 255, 0.02));
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(66, 83, 255, 0.18);
    box-shadow: 0 18px 50px rgba(35, 52, 120, 0.14);
}

.credentials__card ul {
    margin: 0;
    padding-left: 20px;
    color: var(--color-text-muted);
}

.site-footer {
    background: #0f172a;
    color: #f8fafc;
    padding: 64px 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
    align-items: start;
}

.site-footer a {
    color: #cbd5f5;
}

.footer__legal {
    font-size: 0.9rem;
    color: rgba(248, 250, 252, 0.7);
}

@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
    }

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

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

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

@media (max-width: 720px) {
    .site-header .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .site-nav {
        width: 100%;
        gap: 16px;
        flex-wrap: wrap;
    }

    .hero__content h1 {
        font-size: 2.4rem;
    }

    .about__grid,
    .services__grid,
    .approach__grid,
    .footer__grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 72px 0;
    }
}