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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", Arial, sans-serif;
    color: #172033;
    background: #ffffff;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #e8edf5;
}

.header-inner {
    height: 74px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo a {
    display: flex;
    align-items: center;
}

.logo img {
    height: 48px;
    width: auto;
    display: block;
}

.nav {
    display: flex;
    gap: 30px;
    font-size: 15px;
    font-weight: 600;
    color: #26364f;
}

.nav a:hover {
    color: #006ee6;
}

.hero {
    min-height: 690px;
    display: flex;
    align-items: center;
    background:
        radial-gradient(circle at top right, rgba(0, 110, 230, 0.22), transparent 30%),
        linear-gradient(135deg, #071d3a 0%, #0d3d73 48%, #0f7896 100%);
    color: #ffffff;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 70px;
    padding: 100px 0;
}

.eyebrow {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1.8px;
    color: #39d5ff;
    margin-bottom: 18px;
}

.hero h1 {
    font-size: clamp(44px, 6vw, 72px);
    line-height: 1.08;
    letter-spacing: -3px;
    margin-bottom: 28px;
}

.hero-desc {
    max-width: 650px;
    font-size: 20px;
    color: #d9e8f7;
    margin-bottom: 38px;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    padding: 0 24px;
    border-radius: 999px;
    font-weight: 800;
}

.btn.primary {
    background: #ffffff;
    color: #0b3a78;
}

.btn.secondary {
    border: 1px solid rgba(255, 255, 255, 0.45);
    color: #ffffff;
}

.hero-card {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 28px;
    padding: 36px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
}

.hero-card h3 {
    font-size: 22px;
    margin-bottom: 22px;
}

.hero-card ul {
    list-style: none;
}

.hero-card li {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.16);
    color: #eef8ff;
}

.hero-card li:last-child {
    border-bottom: 0;
}

.section {
    padding: 96px 0;
}

.bg-light {
    background: #f5f8fc;
}

.bg-dark {
    background: #081f3d;
    color: #ffffff;
}

.section-title {
    margin-bottom: 42px;
}

.section-title p {
    color: #006ee6;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}

.section-title h2 {
    font-size: 38px;
    letter-spacing: -1.2px;
}

.section-title.light p {
    color: #39d5ff;
}

.about-box {
    background: #ffffff;
    border: 1px solid #e8edf5;
    border-radius: 24px;
    padding: 42px;
    box-shadow: 0 20px 55px rgba(18, 42, 80, 0.08);
}

.about-box p {
    font-size: 18px;
    color: #38475f;
    margin-bottom: 18px;
}

.about-box p:last-child {
    margin-bottom: 0;
}

.grid {
    display: grid;
    gap: 22px;
}

.cards {
    grid-template-columns: repeat(3, 1fr);
}

.card {
    background: #ffffff;
    border: 1px solid #e8edf5;
    border-radius: 22px;
    padding: 30px;
    min-height: 210px;
    box-shadow: 0 16px 45px rgba(18, 42, 80, 0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 22px 60px rgba(18, 42, 80, 0.11);
}

.card h3 {
    font-size: 22px;
    margin-bottom: 14px;
    color: #0b3a78;
}

.card p {
    color: #526176;
    font-size: 16px;
}

.tech-wrap {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.tech-group {
    border: 1px solid #e8edf5;
    border-radius: 22px;
    padding: 28px;
    background: #ffffff;
}

.tech-group h3 {
    margin-bottom: 18px;
    font-size: 20px;
    color: #0b3a78;
}

.tech-group span {
    display: inline-flex;
    margin: 6px 6px 0 0;
    padding: 9px 14px;
    border-radius: 999px;
    background: #eef5ff;
    color: #145699;
    font-size: 14px;
    font-weight: 700;
}

.strength-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.strength-grid div {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 22px;
    padding: 28px;
}

.strength-grid strong {
    color: #39d5ff;
    font-size: 22px;
}

.strength-grid h3 {
    margin: 16px 0 12px;
    font-size: 21px;
}

.strength-grid p {
    color: #c9d8e8;
}

.project {
    min-height: 190px;
}

.notice {
    margin-top: 24px;
    color: #6b778c;
    font-size: 15px;
}

.contact-section {
    background: linear-gradient(135deg, #eef5ff, #ffffff);
}

.contact-box {
    display: grid;
    grid-template-columns: 1fr 0.9fr;
    gap: 50px;
    align-items: center;
    background: #ffffff;
    border: 1px solid #e8edf5;
    border-radius: 28px;
    padding: 48px;
    box-shadow: 0 20px 60px rgba(18, 42, 80, 0.08);
}

.contact-box h2 {
    font-size: 36px;
    line-height: 1.25;
    margin-bottom: 16px;
}

.contact-box p {
    color: #526176;
}

.contact-info {
    background: #f5f8fc;
    border-radius: 20px;
    padding: 28px;
}

.contact-info p {
    padding: 10px 0;
    border-bottom: 1px solid #e3eaf3;
}

.contact-info p:last-child {
    border-bottom: 0;
}

.contact-info strong {
    display: inline-block;
    width: 80px;
    color: #172033;
}

.footer {
    background: #06162b;
    color: #9fb0c7;
    padding: 28px 0;
    text-align: center;
    font-size: 14px;
}

@media (max-width: 900px) {
    .header-inner {
        height: auto;
        padding: 18px 0;
        flex-direction: column;
        gap: 16px;
    }

    .nav {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
        font-size: 14px;
    }

    .hero-inner,
    .contact-box {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
    }

    .hero-inner {
        padding: 70px 0;
    }

    .cards,
    .tech-wrap,
    .strength-grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 70px 0;
    }

    .section-title h2,
    .contact-box h2 {
        font-size: 30px;
    }

    .about-box,
    .contact-box {
        padding: 28px;
    }
}

.contact-form {
    display: grid;
    gap: 12px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid #d9e2ef;
    border-radius: 14px;
    padding: 15px 16px;
    font-size: 15px;
    font-family: inherit;
    outline: none;
    background: #f8fbff;
}

.contact-form textarea {
    min-height: 140px;
    resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #006ee6;
    background: #ffffff;
}

.contact-form button {
    height: 52px;
    border: 0;
    border-radius: 999px;
    background: #0b3a78;
    color: #ffffff;
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
}

.contact-form button:hover {
    background: #006ee6;
}

.contact-info-mini {
    background: #f5f8fc;
    border-radius: 18px;
    padding: 20px;
    margin-bottom: 18px;
}

.contact-info-mini p {
    margin: 8px 0;
    color: #526176;
    font-size: 15px;
}

.contact-info-mini strong {
    display: inline-block;
    width: 60px;
    color: #172033;
}

.client-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.client-card {
    background: #ffffff;
    border: 1px solid #e8edf5;
    border-radius: 18px;
    padding: 26px 20px;
    text-align: center;
    font-size: 18px;
    font-weight: 800;
    color: #0b3a78;
    box-shadow: 0 12px 35px rgba(18, 42, 80, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.client-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 45px rgba(18, 42, 80, 0.10);
}

@media (max-width: 900px) {
    .client-grid {
        grid-template-columns: 1fr;
    }
}