:root {
    color-scheme: dark;
    --bg: #070b10;
    --bg-soft: #0d131b;
    --surface: rgba(18, 25, 35, 0.78);
    --surface-strong: #121923;
    --line: rgba(255, 255, 255, 0.09);
    --line-strong: rgba(255, 255, 255, 0.16);
    --text: #f7f9fc;
    --muted: #9ea9b7;
    --accent: #ff5b62;
    --accent-soft: rgba(255, 91, 98, 0.13);
    --mint: #69dfbf;
    --blue: #70a9ff;
    --max: 1120px;
    --radius-lg: 28px;
    --radius-md: 18px;
    --shadow: 0 30px 80px rgba(0, 0, 0, 0.34);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-width: 320px;
    background:
        radial-gradient(circle at 12% 2%, rgba(112, 169, 255, 0.12), transparent 28rem),
        radial-gradient(circle at 86% 14%, rgba(255, 91, 98, 0.12), transparent 27rem),
        var(--bg);
    color: var(--text);
    font-family: Inter, Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 1.68;
    -webkit-font-smoothing: antialiased;
}

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

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.container {
    width: min(calc(100% - 40px), var(--max));
    margin-inline: auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid transparent;
    background: rgba(7, 11, 16, 0.8);
    backdrop-filter: blur(20px);
}

.nav {
    display: flex;
    min-height: 72px;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    font-size: 20px;
    font-weight: 780;
    letter-spacing: -0.04em;
}

.brand-mark {
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 10px;
    background: linear-gradient(145deg, #ff7177, #d63f49);
    box-shadow: 0 8px 26px rgba(255, 91, 98, 0.22);
    color: white;
    font-size: 13px;
    font-weight: 850;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 600;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible {
    color: var(--text);
}

.nav-cta {
    padding: 9px 15px;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text) !important;
}

.language-link {
    color: #cfd7e3 !important;
    font-size: 12px;
    letter-spacing: 0.08em;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: 92px 0 108px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
    align-items: center;
    gap: 76px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin: 0 0 22px;
    color: #d6dce5;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.eyebrow::before {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--mint);
    box-shadow: 0 0 0 6px rgba(105, 223, 191, 0.09);
    content: "";
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 720px;
    margin-bottom: 24px;
    font-size: clamp(44px, 6vw, 76px);
    font-weight: 780;
    letter-spacing: -0.065em;
    line-height: 1.04;
}

.gradient-text {
    background: linear-gradient(100deg, #ffffff 10%, #a9c9ff 52%, #ff9297 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-copy {
    max-width: 610px;
    margin-bottom: 32px;
    color: var(--muted);
    font-size: clamp(17px, 2vw, 20px);
    line-height: 1.75;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.button {
    display: inline-flex;
    min-height: 50px;
    align-items: center;
    justify-content: center;
    padding: 0 21px;
    border: 1px solid var(--line-strong);
    border-radius: 14px;
    font-size: 15px;
    font-weight: 720;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.28);
}

.button-primary {
    border-color: transparent;
    background: var(--text);
    color: #090d12;
}

.button-secondary {
    background: rgba(255, 255, 255, 0.04);
}

.microcopy {
    margin: 17px 0 0;
    color: #778393;
    font-size: 12px;
}

.dashboard-shell {
    position: relative;
    padding: 14px;
    border: 1px solid var(--line-strong);
    border-radius: 34px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.025));
    box-shadow: var(--shadow);
    transform: rotate(1.8deg);
}

.dashboard-shell::before {
    position: absolute;
    inset: -80px;
    z-index: -1;
    background: radial-gradient(circle, rgba(112, 169, 255, 0.17), transparent 64%);
    content: "";
}

.dashboard {
    overflow: hidden;
    min-height: 515px;
    padding: 25px;
    border-radius: 23px;
    background: #0a0f16;
}

.dash-top,
.metric-row,
.trip-row,
.stat-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.dash-top {
    margin-bottom: 30px;
}

.dash-title {
    margin: 0;
    font-size: 15px;
    font-weight: 700;
}

.status-pill {
    padding: 5px 10px;
    border-radius: 999px;
    background: rgba(105, 223, 191, 0.1);
    color: var(--mint);
    font-size: 11px;
    font-weight: 700;
}

.range-card {
    margin-bottom: 14px;
    padding: 24px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    background:
        linear-gradient(140deg, rgba(112, 169, 255, 0.14), transparent 58%),
        rgba(255, 255, 255, 0.035);
}

.range-label,
.metric-label,
.trip-label {
    color: var(--muted);
    font-size: 11px;
    font-weight: 650;
}

.range-value {
    margin: 3px 0 18px;
    font-size: 42px;
    font-weight: 760;
    letter-spacing: -0.05em;
}

.range-value span {
    margin-left: 5px;
    color: var(--muted);
    font-size: 14px;
    letter-spacing: 0;
}

.battery-track {
    height: 7px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
}

.battery-fill {
    width: 78%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--mint), #9df0d7);
}

.metric-row {
    align-items: stretch;
    margin-bottom: 14px;
}

.metric {
    flex: 1;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 17px;
    background: rgba(255, 255, 255, 0.03);
}

.metric strong {
    display: block;
    margin-top: 5px;
    font-size: 21px;
    letter-spacing: -0.03em;
}

.trip-card {
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.025);
}

.trip-row + .trip-row {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.trip-row strong {
    font-size: 13px;
}

.section {
    padding: 100px 0;
}

.section-soft {
    border-block: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.018);
}

.section-heading {
    max-width: 720px;
    margin-bottom: 50px;
}

.kicker {
    margin-bottom: 12px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

h2 {
    margin-bottom: 17px;
    font-size: clamp(32px, 4.4vw, 52px);
    font-weight: 750;
    letter-spacing: -0.05em;
    line-height: 1.16;
}

.section-heading > p,
.privacy-intro,
.step p,
.feature-card p {
    color: var(--muted);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.feature-card {
    min-height: 260px;
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--surface);
}

.feature-number {
    display: inline-grid;
    width: 38px;
    height: 38px;
    margin-bottom: 42px;
    place-items: center;
    border-radius: 12px;
    background: var(--accent-soft);
    color: #ff8e93;
    font-size: 12px;
    font-weight: 800;
}

.feature-card:nth-child(2) .feature-number,
.feature-card:nth-child(3) .feature-number {
    background: rgba(112, 169, 255, 0.11);
    color: #9fc4ff;
}

.feature-card:nth-child(4) .feature-number {
    background: rgba(105, 223, 191, 0.1);
    color: var(--mint);
}

.feature-card:nth-child(5) .feature-number {
    background: rgba(255, 91, 98, 0.1);
    color: #ff8e93;
}

.feature-card:nth-child(6) .feature-number {
    background: rgba(105, 223, 191, 0.1);
    color: var(--mint);
}

.feature-card h3 {
    margin-bottom: 9px;
    font-size: 23px;
    letter-spacing: -0.03em;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.step {
    padding: 28px 0;
    border-top: 1px solid var(--line-strong);
}

.step-index {
    display: block;
    margin-bottom: 24px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 800;
}

.step h3 {
    margin-bottom: 8px;
    font-size: 20px;
}

.review-panel {
    display: grid;
    grid-template-columns: 0.82fr 1.18fr;
    gap: 70px;
    align-items: start;
}

.review-heading {
    margin-bottom: 0;
}

.review-grid {
    display: grid;
    gap: 16px;
}

.review-card {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: var(--surface);
}

.review-card p {
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 14px;
}

.review-label {
    display: block;
    margin-bottom: 17px;
    color: #dbe2ec;
    font-size: 13px;
    font-weight: 760;
}

.scope-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.scope-list code {
    padding: 7px 10px;
    border: 1px solid rgba(112, 169, 255, 0.2);
    border-radius: 9px;
    background: rgba(112, 169, 255, 0.075);
    color: #bad4ff;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    font-size: 11px;
}

.check-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.check-list li {
    position: relative;
    padding-left: 23px;
    color: #c1c9d4;
    font-size: 14px;
}

.check-list li::before {
    position: absolute;
    top: 0;
    left: 0;
    color: var(--mint);
    content: "✓";
    font-weight: 800;
}

.check-list li + li {
    margin-top: 10px;
}

.privacy-panel {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 70px;
    align-items: start;
    padding: 54px;
    border: 1px solid var(--line);
    border-radius: 32px;
    background:
        radial-gradient(circle at 100% 0%, rgba(105, 223, 191, 0.09), transparent 38%),
        var(--surface-strong);
}

.privacy-panel h2 {
    font-size: clamp(30px, 4vw, 44px);
}

.principles {
    display: grid;
    gap: 12px;
}

.inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
}

.principle {
    padding: 18px 20px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.025);
}

.principle strong {
    display: block;
    margin-bottom: 3px;
    font-size: 15px;
}

.principle span {
    color: var(--muted);
    font-size: 13px;
}

.cta-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    padding: 54px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 32px;
    background:
        radial-gradient(circle at 0% 100%, rgba(112, 169, 255, 0.16), transparent 45%),
        radial-gradient(circle at 100% 0%, rgba(255, 91, 98, 0.14), transparent 45%),
        #111822;
}

.cta-panel h2 {
    max-width: 650px;
    margin-bottom: 10px;
    font-size: clamp(29px, 4vw, 44px);
}

.cta-panel p {
    margin-bottom: 0;
    color: var(--muted);
}

.site-footer {
    padding: 42px 0 50px;
    border-top: 1px solid var(--line);
}

.footer-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px 22px;
    color: var(--muted);
    font-size: 13px;
}

.business-info {
    display: grid;
    gap: 5px;
    margin: 22px 0 0;
    color: #8f99a6;
    font-size: 13px;
    font-style: normal;
    line-height: 1.65;
}

.business-info strong {
    color: #c8d0d9;
    font-weight: 700;
}

.business-info a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.disclaimer {
    max-width: 760px;
    margin: 28px 0 0;
    color: #687484;
    font-size: 11px;
    line-height: 1.65;
}

/* Documents */
.document-hero {
    padding: 82px 0 54px;
    border-bottom: 1px solid var(--line);
}

.document-hero h1 {
    margin-bottom: 16px;
    font-size: clamp(38px, 5vw, 58px);
}

.document-meta {
    color: var(--muted);
    font-size: 14px;
}

.document-layout {
    display: grid;
    grid-template-columns: 220px minmax(0, 760px);
    gap: 70px;
    align-items: start;
    padding: 64px 0 110px;
}

.document-nav {
    position: sticky;
    top: 104px;
    display: grid;
    gap: 9px;
    color: var(--muted);
    font-size: 13px;
}

.document-nav a {
    padding: 7px 0;
}

.document-nav a:hover,
.document-nav a:focus-visible {
    color: var(--text);
}

.document-content {
    min-width: 0;
}

.notice-box {
    margin-bottom: 42px;
    padding: 19px 21px;
    border: 1px solid rgba(112, 169, 255, 0.22);
    border-radius: 16px;
    background: rgba(112, 169, 255, 0.075);
    color: #c9d9ef;
    font-size: 14px;
}

.document-section {
    scroll-margin-top: 104px;
    margin-bottom: 48px;
}

.document-section h2 {
    margin-bottom: 16px;
    font-size: 25px;
    letter-spacing: -0.035em;
}

.document-section h3 {
    margin: 28px 0 10px;
    font-size: 17px;
}

.document-section p,
.document-section li {
    color: #c1c9d4;
}

.document-section ul,
.document-section ol {
    padding-left: 21px;
}

.document-section li + li {
    margin-top: 8px;
}

.table-wrap {
    overflow-x: auto;
    margin: 20px 0;
    border: 1px solid var(--line);
    border-radius: 16px;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 620px;
    font-size: 13px;
}

th,
td {
    padding: 15px 17px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

tr:last-child td {
    border-bottom: 0;
}

th {
    background: rgba(255, 255, 255, 0.035);
    color: var(--text);
}

td {
    color: #bcc5d0;
}

.contact-card {
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--surface);
}

.contact-card p:last-child {
    margin-bottom: 0;
}

.text-link {
    color: #a9c9ff;
    text-decoration: underline;
    text-decoration-color: rgba(169, 201, 255, 0.35);
    text-underline-offset: 4px;
}

.support-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 22px;
}

.support-card,
.faq-item {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: var(--surface);
}

.support-card h2,
.faq-item h2 {
    font-size: 21px;
}

.faq-list {
    display: grid;
    gap: 14px;
}

.faq-item p {
    margin-bottom: 0;
    color: var(--muted);
}

@media (max-width: 900px) {
    .hero-grid,
    .privacy-panel,
    .support-grid,
    .review-panel {
        grid-template-columns: 1fr;
    }

    .hero-grid {
        gap: 64px;
    }

    .dashboard-shell {
        width: min(100%, 520px);
        margin-inline: auto;
        transform: none;
    }

    .privacy-panel {
        gap: 34px;
    }

    .review-panel {
        gap: 34px;
    }

    .document-layout {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .document-nav {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        padding-bottom: 26px;
        border-bottom: 1px solid var(--line);
    }
}

@media (max-width: 700px) {
    .container {
        width: min(calc(100% - 28px), var(--max));
    }

    .nav {
        min-height: 64px;
    }

    .nav-links a:not(.nav-cta) {
        display: none;
    }

    .nav-links a.language-link {
        display: inline-flex;
    }

    .hero {
        padding: 65px 0 78px;
    }

    h1 {
        font-size: clamp(41px, 13vw, 58px);
    }

    .dashboard {
        min-height: 470px;
        padding: 19px;
    }

    .metric-row,
    .feature-grid,
    .steps {
        grid-template-columns: 1fr;
    }

    .metric-row {
        display: grid;
    }

    .feature-grid,
    .steps {
        display: grid;
    }

    .section {
        padding: 76px 0;
    }

    .feature-card {
        min-height: 230px;
        padding: 25px;
    }

    .privacy-panel,
    .cta-panel {
        padding: 28px;
        border-radius: 24px;
    }

    .cta-panel,
    .footer-main {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-links {
        justify-content: flex-start;
    }

    .document-hero {
        padding: 58px 0 42px;
    }

    .document-layout {
        padding: 42px 0 80px;
    }

    .document-nav {
        grid-template-columns: 1fr;
        gap: 2px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .button {
        transition: none;
    }
}