:root {
    --bg: #ffffff;
    --bg-alt: #f4f6f8;
    --ink: #1a1a1a;
    --ink-soft: #4a4a4a;
    --line: #e5e7eb;
    --accent: #1a1a1a;
    --sans: 'Poppins', system-ui, -apple-system, Segoe UI, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 16px; }

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 32px;
}

.btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 14px 28px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    border-radius: 2px;
    transition: transform .15s, background .2s;
}
.btn:hover { background: #000; transform: translateY(-1px); }

/* Header */
.site-header {
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 30;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    display: inline-flex;
    align-items: center;
}
.logo img {
    height: 44px;
    width: auto;
    display: block;
}
.main-nav { display: flex; gap: 36px; font-size: 15px; font-weight: 500; }
.main-nav a { color: var(--ink); transition: opacity .2s; }
.main-nav a:hover { opacity: 0.6; }

/* Hero */
.hero {
    padding: 72px 0 100px;
    background: var(--bg-alt);
}
.hero-title {
    font-weight: 700;
    font-size: clamp(34px, 5.2vw, 56px);
    line-height: 1.12;
    letter-spacing: -0.02em;
    margin: 0 0 48px;
    text-align: center;
    color: var(--ink);
}
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 56px;
    align-items: center;
}
.hero-copy p {
    color: var(--ink-soft);
    font-size: 16px;
    margin-bottom: 28px;
}
.hero-image img {
    width: 100%;
    border-radius: 4px;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

/* Section titles */
.section-title {
    font-weight: 700;
    font-size: clamp(30px, 4vw, 42px);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin: 0 0 24px;
    text-align: center;
}
.section-intro {
    color: var(--ink-soft);
    max-width: 780px;
    margin: 0 auto 40px;
}
.section-intro.center { text-align: center; }

/* Who we are */
.who-we-are {
    padding: 96px 0;
    background: var(--bg-alt);
}
.who-copy {
    max-width: 820px;
    margin: 0 auto 40px;
    text-align: center;
    color: var(--ink-soft);
}
.who-copy p { margin-bottom: 28px; }
.who-copy strong { color: var(--ink); font-weight: 600; }
.who-copy .btn { display: inline-block; }
.who-image {
    max-width: 1000px;
    margin: 0 auto;
}
.who-image img {
    width: 100%;
    border-radius: 4px;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

/* What We Do */
.what-we-do {
    padding: 96px 0;
    background: #fff;
}
.service, .sub-block {
    max-width: 820px;
    margin: 0 auto 40px;
}
.service h3, .sub-block h3 {
    font-weight: 700;
    font-size: 20px;
    margin: 0 0 12px;
    letter-spacing: -0.01em;
}
.service p, .sub-block p { color: var(--ink-soft); margin-bottom: 12px; }
.service ul, .sub-block ul {
    padding-left: 20px;
    margin: 0 0 8px;
    color: var(--ink-soft);
}
.service ul li, .sub-block ul li { margin-bottom: 8px; line-height: 1.6; }
.service strong, .sub-block strong { color: var(--ink); font-weight: 600; }

/* Testimonials */
.testimonials {
    padding: 96px 0;
    background: var(--bg-alt);
}
.testimonial-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}
.testimonial {
    position: relative;
    margin: 0;
    padding: 28px 28px 24px;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.testimonial blockquote {
    margin: 0 0 22px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--ink-soft);
}
.testimonial blockquote p { margin: 0; }
.testimonial figcaption {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 8px;
    border-top: 1px solid var(--line);
    position: relative;
}
.testimonial figcaption img,
.testimonial figcaption .avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    background: #2a2a2a;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}
.testimonial figcaption strong {
    display: block;
    font-weight: 700;
    font-size: 16px;
    color: var(--ink);
}
.testimonial figcaption span:not(.quote-mark) {
    color: var(--ink-soft);
    font-size: 12px;
}
.quote-mark {
    margin-left: auto;
    font-size: 44px;
    line-height: 1;
    color: #b8bcc2;
    font-family: Georgia, serif;
    align-self: center;
}

/* Footer */
.site-footer {
    padding: 64px 0 32px;
    background: #fff;
    border-top: 1px solid var(--line);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand img {
    width: 160px;
    height: auto;
    border-radius: 14px;
}
.footer-col h4 {
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.12em;
    color: var(--ink);
    margin: 0 0 20px;
}
.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-col li {
    padding: 6px 0;
    font-size: 14px;
    color: var(--ink-soft);
}
.footer-col li strong { color: var(--ink); font-weight: 600; }
.footer-col a { color: var(--ink-soft); transition: color .2s; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--line);
    text-align: center;
    font-size: 13px;
    color: var(--ink-soft);
}
.footer-bottom p { margin: 4px 0; }
.subsidiary { font-size: 12px; }

/* Responsive */
@media (max-width: 860px) {
    .container { padding: 0 22px; }
    .hero { padding: 56px 0 72px; }
    .hero-grid { grid-template-columns: 1fr; gap: 32px; }
    .who-we-are, .what-we-do, .testimonials { padding: 64px 0; }
    .testimonial-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .footer-brand { grid-column: 1 / -1; }
    .main-nav { gap: 20px; }
    .logo-mark, .logo-sub { font-size: 18px; }
}
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}