* {
box-sizing: border-box;
}

body {
margin: 0;
font-family: Arial, Helvetica, sans-serif;
background: #f6f8fb;
color: #1f2937;
line-height: 1.6;
}

.site-header {
background: #111827;
color: white;
}

.nav {
max-width: 1120px;
margin: 0 auto;
display: flex;
justify-content: space-between;
align-items: center;
padding: 22px 24px;
}

.brand {
font-weight: 800;
font-size: 1.2rem;
color: white;
text-decoration: none;
}

.nav-link {
color: #dbeafe;
text-decoration: none;
font-weight: 600;
}

.hero {
min-height: 620px;
display: flex;
align-items: center;
background:
linear-gradient(90deg, rgba(17,24,39,.95), rgba(17,24,39,.68), rgba(17,24,39,.22)),
url("images/hero.jpg") center/cover no-repeat;
}

.hero-content {
max-width: 1120px;
margin: 0 auto;
padding: 80px 24px;
width: 100%;
}

.eyebrow {
text-transform: uppercase;
letter-spacing: .12em;
font-size: .78rem;
font-weight: 800;
color: #38bdf8;
margin: 0 0 12px;
}

h1 {
font-size: clamp(2.7rem, 6vw, 5.4rem);
line-height: 1;
max-width: 760px;
margin: 0 0 24px;
}

.hero-text {
font-size: 1.25rem;
max-width: 620px;
color: #e5e7eb;
margin-bottom: 32px;
}

.button {
display: inline-block;
background: #38bdf8;
color: #082f49;
font-weight: 800;
padding: 14px 22px;
border-radius: 999px;
text-decoration: none;
box-shadow: 0 18px 40px rgba(56,189,248,.25);
}

main {
max-width: 1120px;
margin: 0 auto;
padding: 72px 24px;
}

.intro {
display: grid;
grid-template-columns: 1fr 1.2fr;
gap: 42px;
align-items: start;
margin-bottom: 84px;
}

h2 {
font-size: clamp(2rem, 4vw, 3.2rem);
line-height: 1.1;
margin: 0 0 18px;
color: #111827;
}

.feature-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 18px;
}

.feature-grid article {
background: white;
padding: 24px;
border-radius: 20px;
box-shadow: 0 16px 35px rgba(15,23,42,.07);
}

.feature-grid h3 {
margin-top: 0;
color: #0f172a;
}

.app-section {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 44px;
align-items: center;
background: white;
border-radius: 28px;
padding: 42px;
box-shadow: 0 24px 70px rgba(15,23,42,.10);
}

.app-copy ul {
padding-left: 22px;
}

.app-copy li {
margin: 8px 0;
}

.small-note {
font-size: .92rem;
color: #64748b;
background: #f1f5f9;
padding: 14px 16px;
border-radius: 14px;
}

.app-card {
background: linear-gradient(145deg, #e0f2fe, #f8fafc);
border-radius: 28px;
padding: 24px;
text-align: center;
}

.app-card img {
max-width: 100%;
height: auto;
display: block;
border-radius: 20px;
}

footer {
text-align: center;
padding: 32px 20px;
background: #111827;
color: #d1d5db;
}

@media (max-width: 820px) {
.intro,
.app-section {
grid-template-columns: 1fr;
}

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

.hero {
min-height: 560px;
}
}