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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #fff;
    color: #111;
    text-align: center;
}

.network-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}

.network-bg svg {
    width: 100%;
    height: 100%;
}

.network-bg line {
    stroke: #2563eb;
    stroke-width: 1;
    opacity: 0.08;
}

.network-bg circle {
    fill: #2563eb;
    opacity: 0.12;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 8%;
    border-bottom: 1px solid #eee;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    height: 22px;
    width: auto;
    display: block;
}

nav {
    display: flex;
    gap: 32px;
}

nav a {
    text-decoration: none;
    color: #555;
}

nav a:hover {
    color: #000;
}

.hero {
    max-width: 1100px;
    padding: 8rem 8% 6rem;
    margin: 0 auto;
    text-align: center;
}

.eyebrow {
    color: #2563eb;
    font-size: 0.8rem;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.08;
    max-width: 900px;
    margin: 0 auto 24px;
}

.subtitle {
    max-width: 650px;
    margin: 0 auto 1.25rem;
    color: #666;
    font-size: 1.1rem;
}

.hero-buttons {
    margin-top: 40px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-primary {
    background: #111;
    color: white;
    text-decoration: none;
    padding: 14px 24px;
    display: inline-block;
    border-radius: 10px;
}

.btn-secondary {
    border: 1px solid #ddd;
    color: #111;
    text-decoration: none;
    padding: 14px 24px;
    display: inline-block;
    background: white;
    border-radius: 10px;
}

.section {
    padding: 6rem 8%;
    text-align: center;
}

.section-label {
    color: #888;
    font-size: 0.8rem;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    letter-spacing: 1px;
}

.section h2 {
    font-size: 2.5rem;
    margin: 0 auto 1.5rem;
    max-width: 800px;
}

.intro-text {
    max-width: 760px;
    color: #666;
    font-size: 1.1rem;
    margin: 0 auto 1rem;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 30px auto 0;
    max-width: 1100px;
}

.card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #eee;
    padding: 28px;
    transition: 0.2s;
    text-align: center;
    border-radius: 10px;
}

.card p {
    color: #666;
    margin-top: 10px;
}

.narrow {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.narrow p {
    font-size: 1.15rem;
    color: #666;
}

.contact {
    text-align: center;
}

.contact h2 {
    margin-left: auto;
    margin-right: auto;
}

.contact p {
    color: #666;
    margin: 0 auto 30px;
    max-width: 700px;
}

footer {
    text-align: center;
    padding: 40px;
    border-top: 1px solid #eee;
    color: #888;
}

.timeline {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin: 50px auto 0;
    padding: 40px;
    max-width: 1100px;

    background: rgba(255, 255, 255, 0.92);
    border: 1px solid #eee;
    border-radius: 10px;
    text-align: center;
}

.timeline::before {
    content: "";
    position: absolute;
    top: 58px;
    left: 40px;
    right: 40px;
    height: 1px;
    background: rgba(37, 99, 235, 0.25);
}

.timeline div {
    position: relative;
    padding-top: 45px;
}

.timeline div::before {
    content: "";
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    background: #2563eb;
    border-radius: 50%;
    box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.12);
}

.timeline span {
    color: #2563eb;
    font-weight: 700;
    letter-spacing: 1px;
}

.timeline h3 {
    margin-top: 10px;
    margin-bottom: 8px;
}

.timeline p {
    color: #666;
    max-width: 220px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .hero {
        padding: 5rem 8% 4rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    nav {
        display: none;
    }

    .timeline {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 32px 26px;
    }

    .timeline::before {
        display: none;
    }

    .timeline div {
        padding-top: 45px;
        padding-left: 0;
    }

    .timeline div::before {
        top: 4px;
        left: 50%;
        transform: translateX(-50%);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline::before {
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1s ease;
}

.timeline.is-visible::before {
    transform: scaleX(1);
}

.timeline div {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline.is-visible div {
    opacity: 1;
    transform: translateY(0);
}

.timeline div::before {
    opacity: 0;
    transform: translateX(-50%) scale(0.5);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.timeline.is-visible div::before {
    opacity: 1;
    transform: translateX(-50%) scale(1);
}

.timeline.is-visible div:nth-child(1),
.timeline.is-visible div:nth-child(1)::before {
    transition-delay: 0.1s;
}

.timeline.is-visible div:nth-child(2),
.timeline.is-visible div:nth-child(2)::before {
    transition-delay: 0.25s;
}

.timeline.is-visible div:nth-child(3),
.timeline.is-visible div:nth-child(3)::before {
    transition-delay: 0.4s;
}

.timeline.is-visible div:nth-child(4),
.timeline.is-visible div:nth-child(4)::before {
    transition-delay: 0.55s;
}

@media (max-width: 768px) {
    .timeline::before {
        display: none;
    }
}