:root {
    --bg: #050b18;
    --panel: #0c1727;
    --panel-strong: #0f1f35;
    --primary: #9ef01a;
    --accent: #24d8ff;
    --text-main: #e9f1ff;
    --text-muted: #9db3d7;
    --border: rgba(255, 255, 255, 0.08);
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    --glow: 0 12px 40px rgba(36, 216, 255, 0.18);
    --radius: 18px;
    --radius-lg: 24px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Space Grotesk', 'Noto Sans KR', sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.6;
    letter-spacing: -0.01em;
}

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

section {
    padding: 5.5rem 0;
    position: relative;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.main-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 3rem;
    background: rgba(5, 11, 24, 0.30);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.logo img {
    height: 42px;
    width: auto;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-list li a {
    font-weight: 600;
    color: var(--text-muted);
    transition: color 0.3s ease;
}

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

.nav-list li a.nav-cta {
    padding: 0.4rem 0.9rem;
    border: 1px solid rgba(158, 240, 26, 0.6);
    border-radius: 999px;
    color: var(--text-main);
    box-shadow: 0 0 12px rgba(158, 240, 26, 0.35), inset 0 0 6px rgba(158, 240, 26, 0.3);
    text-shadow: 0 0 10px rgba(158, 240, 26, 0.5);
}

.nav-list li a.nav-cta:hover {
    color: #071020;
    background: rgba(158, 240, 26, 0.9);
    box-shadow: 0 0 18px rgba(158, 240, 26, 0.6);
    border-color: rgba(158, 240, 26, 0.9);
}

.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.35rem 0.65rem;
    font-size: 1.3rem;
    color: var(--text-main);
    cursor: pointer;
}

.hero {
    position: relative;
    min-height: 92vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: radial-gradient(circle at 20% 20%, rgba(36, 216, 255, 0.14), transparent 32%),
        radial-gradient(circle at 80% 30%, rgba(158, 240, 26, 0.15), transparent 30%),
        var(--bg);
}

.hero-visual {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 120px 120px;
    opacity: 0.25;
    mix-blend-mode: soft-light;
    background-position: 0 0, 0 0;
    animation: gridFloat 18s linear infinite;
}

.orb {
    position: absolute;
    width: 360px;
    height: 360px;
    filter: blur(90px);
    opacity: 0.4;
    will-change: transform;
}

.orb-1 {
    top: -80px;
    left: -120px;
    background: #24d8ff;
    animation: orbDrift1 20s ease-in-out infinite;
}

.orb-2 {
    bottom: -100px;
    right: -80px;
    background: #9ef01a;
    animation: orbDrift2 24s ease-in-out infinite;
}

.orb-3 {
    bottom: 10%;
    left: 20%;
    background: #3fa9f5;
    animation: orbDrift3 16s ease-in-out infinite;
}

@keyframes orbDrift1 {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    40% {
        transform: translate3d(50px, 30px, 0) scale(1.06);
    }
    70% {
        transform: translate3d(-35px, 18px, 0) scale(0.98);
    }
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
}

@keyframes orbDrift2 {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    35% {
        transform: translate3d(-40px, -20px, 0) scale(1.02);
    }
    65% {
        transform: translate3d(26px, -8px, 0) scale(1.04);
    }
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
}

@keyframes orbDrift3 {
    0% {
        transform: translate3d(0, 0, 0) scale(1);
    }
    45% {
        transform: translate3d(-25px, -35px, 0) scale(1.03);
    }
    80% {
        transform: translate3d(30px, 20px, 0) scale(0.97);
    }
    100% {
        transform: translate3d(0, 0, 0) scale(1);
    }
}

@keyframes gridFloat {
    0% {
        background-position: 0 0, 0 0;
    }
    50% {
        background-position: 60px 40px, 40px 60px;
    }
    100% {
        background-position: 120px 90px, 90px 120px;
    }
}

@keyframes stampSweep {
    0% {
        background-position: -150% 0;
    }
    100% {
        background-position: 150% 0;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 4rem 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--accent);
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

.hero h1 {
    margin: 1rem 0 1rem;
    font-size: clamp(2.2rem, 4.6vw, 3.4rem);
    line-height: 1.15;
    font-weight: 700;
}

.hero p {
    max-width: 780px;
    color: var(--text-muted);
    font-size: 1.05rem;
}
.hero-lead {
    max-width: 100%;
}
@media (min-width: 1100px) {
    .hero-lead {
        white-space: nowrap;
    }
}

.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 1.8rem 0;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1.6rem;
    border-radius: 999px;
    background: linear-gradient(120deg, var(--primary), #65ff8f);
    color: #071020;
    font-weight: 700;
    letter-spacing: 0.01em;
    border: none;
    box-shadow: 0 14px 36px rgba(103, 255, 143, 0.25);
}

.cta-button:hover {
    transform: translateY(-1px);
}

.ghost-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1.5rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-main);
    font-weight: 600;
    transition: border-color 0.3s ease, color 0.3s ease;
}

.ghost-button:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.stat-card {
    padding: 1.1rem 1.2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: var(--glow);
}

.stat-card .value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-card .label {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.trust-badges {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1.2rem;
}

.trust-badges span {
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
}

.hero-stamp {
    position: absolute;
    right: 1.5rem;
    bottom: 2.5rem;
    font-size: clamp(2.3rem, 7vw, 3.5rem);
    color: rgba(255, 255, 255, 0.08);
    font-weight: 700;
    letter-spacing: 0.12em;
    white-space: nowrap;
    transform: none;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.hero-stamp::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.1) 20%, rgba(36, 216, 255, 0.6) 45%, rgba(158, 240, 26, 0.6) 60%, transparent 80%);
    background-size: 300% 100%;
    background-position: -150% 0;
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
    animation: stampSweep 10s linear infinite;
    pointer-events: none;
}

.section-header {
    text-align: center;
    max-width: 820px;
    margin: 0 auto 3rem;
}

.section-header h2 {
    margin: 0.6rem 0;
    font-size: clamp(1.25rem, 3.6vw, 1.85rem);
    font-weight: 700;
    letter-spacing: -0.01em;
}

.heading-accent {
    color: var(--primary);
    text-shadow: 0 0 10px rgba(158, 240, 26, 0.35);
}

.heading-accent-blue {
    color: var(--accent);
    text-shadow: 0 0 12px rgba(36, 216, 255, 0.4);
}

.section-header .subhead {
    margin: 0;
    color: var(--text-muted);
}

.features-section {
    background: #0a1221;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    position: relative;
    padding: 1.6rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    overflow: hidden;
}

.feature-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(36, 216, 255, 0.14), rgba(158, 240, 26, 0.08));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-card > * {
    position: relative;
    z-index: 1;
}

.pill {
    display: inline-flex;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    background: rgba(33, 216, 255, 0.08);
    color: var(--accent);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}

.feature-card h3 {
    margin: 0.8rem 0 0.4rem;
    font-size: 1.25rem;
}

.feature-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.98rem;
}

.services-section {
    background: var(--bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.service-card {
    padding: 1.6rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.04);
    box-shadow: var(--glow);
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    height: 100%;
}

.service-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
}

.service-card h3 {
    margin: 0;
    font-size: 1.2rem;
}

.chip {
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    background: rgba(158, 240, 26, 0.12);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.85rem;
    white-space: nowrap;
}

.service-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.97rem;
}

.service-list {
    margin: 0;
    padding-left: 1.2rem;
    color: var(--text-muted);
    font-size: 0.97rem;
    line-height: 1.6;
    display: grid;
    gap: 0.45rem;
}

.service-list li::marker {
    color: var(--primary);
}

.process-section {
    background: var(--panel);
}

.process-divider {
    width: 90%;
    max-width: 900px;
    height: 1px;
    margin: 2.5rem auto;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    opacity: 0.55;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.4rem;
}

.step-card {
    padding: 1.4rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    position: relative;
    overflow: visible; /* keep pseudo arrows visible between cards */
}

.step-card:not(:last-child)::before {
    content: ">";
    position: absolute;
    right: -0.75rem; /* place in the gap between cards */
    top: 50%;
    transform: translate(50%, -50%);
    color: var(--accent);
    font-size: 1.4rem;
    font-weight: 800;
    opacity: 0.8;
    pointer-events: none;
    text-shadow: 0 0 12px rgba(36, 216, 255, 0.3);
}

.step-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(36, 216, 255, 0.08), rgba(158, 240, 26, 0.04));
    border-radius: inherit;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.step-card:hover::after {
    opacity: 1;
}

.step-card > * {
    position: relative;
    z-index: 1;
}

.step-number {
    font-size: 0.95rem;
    color: var(--accent);
    letter-spacing: 0.08em;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.step-card h3 {
    margin: 0 0 0.4rem;
    font-size: 1.15rem;
}

.step-card p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.96rem;
}

.contact-section {
    background: linear-gradient(135deg, #071020, #0d1c31);
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.45fr) minmax(340px, 0.85fr);
    gap: clamp(3.25rem, 6vw, 5.5rem);
    align-items: center;
}

.contact-copy h2 {
    margin: 0.6rem 0;
    font-size: 2rem;
}

.contact-copy .subhead {
    color: var(--text-muted);
    margin: 0 0 1.5rem;
}

.contact-copy .subhead strong {
    color: #9ef01a;
    font-weight: 800;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.25);
}

.contact-grid {
    display: grid;
    grid-template-columns: minmax(170px, 0.78fr) minmax(145px, 0.67fr) minmax(260px, 1fr);
    column-gap: clamp(1.5rem, 3vw, 2.75rem);
    row-gap: 1rem;
    max-width: 720px;
}

.contact-item h3 {
    margin: 0 0 0.35rem;
    color: var(--text-main);
}

.contact-item p {
    margin: 0;
    color: var(--text-muted);
    line-height: 1.5;
}

.contact-item.address p {
    white-space: nowrap;
}

.contact-actions {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-top: 1.2rem;
}

.contact-button {
    min-width: 150px;
}

.contact-cta {
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    box-shadow: var(--glow);
}

.contact-cta h3 {
    margin: 0 0 0.6rem;
}

.contact-cta p {
    margin: 0 0 1rem;
    color: var(--text-muted);
}

.cta-list {
    margin: 0 0 1.2rem;
    padding-left: 1.2rem;
    color: var(--text-muted);
    line-height: 1.6;
}

footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.fade-element {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-element.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1024px) {
    .main-header {
        padding: 1rem 1.8rem;
    }
}

@media (max-width: 900px) {
    .nav-list {
        position: absolute;
        top: 70px;
        right: 1.5rem;
        background: var(--panel-strong);
        flex-direction: column;
        width: 230px;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 0.8rem;
        display: none;
        box-shadow: var(--shadow);
    }

    .nav-list.open {
        display: flex;
    }

    .nav-list li a {
        padding: 0.75rem 0.5rem;
        display: block;
        color: var(--text-main);
    }

    .nav-list li a.nav-cta {
        text-align: center;
    }

    .menu-toggle {
        display: block;
    }

    .main-nav {
        position: relative;
    }

    .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        max-width: 800px;
    }

    .step-card::before {
        display: none;
    }
}

@media (max-width: 720px) {
    section {
        padding: 4rem 0;
    }

    .hero {
        padding: 1rem 0 3rem;
    }

    .hero h1 {
        font-size: 2.1rem;
    }

    .hero-stamp {
        display: none;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        max-width: none;
        gap: 1rem;
    }

    .contact-item.address p {
        white-space: normal;
    }

    .services-grid {
        grid-template-columns: 1fr;
        max-width: none;
    }
}