:root {
    --blue: #0066cc;
    --blue-hover: #0071e3;
    --blue-light: #e8f2ff;
    --ink: #1d1d1f;
    --muted: #6e6e73;
    --secondary: #86868b;
    --canvas: #f5f5f7;
    --surface: #ffffff;
    --dark: #272729;
    --dark-ink: #f5f5f7;
    --dark-muted: #a1a1a6;
    --hairline: #d2d2d7;
    --soft-line: #e8e8ed;
    --max: 1120px;
    --legal-max: 860px;
    --radius: 22px;
    --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Apple SD Gothic Neo", "Noto Sans KR", system-ui, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--canvas);
}

body {
    margin: 0;
    min-width: 320px;
    background: var(--canvas);
    color: var(--ink);
    font-family: var(--font);
    font-size: 17px;
    line-height: 1.47059;
    letter-spacing: 0;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

a:hover {
    color: var(--blue-hover);
}

p,
h1,
h2,
h3,
h4 {
    margin: 0;
}

button {
    font: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(245, 245, 247, 0.82);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: saturate(180%) blur(20px);
}

.nav {
    width: min(100%, var(--max));
    margin: 0 auto;
    min-height: 52px;
    padding: 0 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.brand {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0;
    color: var(--ink);
    white-space: nowrap;
}

.nav-side {
    display: flex;
    align-items: center;
    gap: 20px;
    min-width: 0;
}

.nav-links {
    display: none;
    align-items: center;
    gap: 22px;
    color: rgba(29, 29, 31, 0.78);
    font-size: 13px;
    line-height: 1;
    white-space: nowrap;
}

.nav-links.is-active {
    display: flex;
}

.nav-links .active {
    color: var(--ink);
    font-weight: 600;
}

.language-toggle {
    display: flex;
    align-items: center;
    padding: 2px;
    border: 1px solid var(--hairline);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.72);
}

.lang-btn {
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    padding: 5px 10px;
    font-size: 12px;
    line-height: 1;
}

.lang-btn.is-active {
    background: var(--ink);
    color: var(--surface);
}

[data-locale] {
    display: none;
}

[data-locale].is-active {
    display: block;
}

.section {
    width: min(100%, var(--max));
    margin: 0 auto;
    padding: 96px 22px;
}

.section.compact {
    padding-top: 64px;
    padding-bottom: 64px;
}

.eyebrow {
    color: var(--blue);
    font-size: 19px;
    font-weight: 600;
    line-height: 1.21053;
    margin-bottom: 14px;
}

.section-title {
    max-width: 780px;
    font-size: clamp(38px, 5.6vw, 72px);
    line-height: 1.055;
    letter-spacing: 0;
    font-weight: 600;
}

.section-copy {
    max-width: 720px;
    margin-top: 22px;
    color: var(--muted);
    font-size: clamp(19px, 2vw, 24px);
    line-height: 1.3334;
}

.hero {
    background: var(--surface);
    border-bottom: 1px solid var(--soft-line);
}

.hero .section {
    padding-top: 88px;
    padding-bottom: 72px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(340px, 1.08fr);
    gap: 56px;
    align-items: center;
}

.hero h1 {
    font-size: clamp(48px, 7.2vw, 88px);
    line-height: 1.02;
    letter-spacing: 0;
    font-weight: 600;
}

.hero-copy {
    margin-top: 24px;
    color: var(--muted);
    font-size: clamp(20px, 2.2vw, 27px);
    line-height: 1.2963;
    max-width: 650px;
}

.hero-actions {
    margin-top: 34px;
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.button {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 11px 20px;
    font-size: 17px;
    line-height: 1.17648;
    font-weight: 400;
    border: 1px solid transparent;
}

.button.primary {
    background: var(--blue);
    color: var(--surface);
}

.button.primary:hover {
    background: var(--blue-hover);
    color: var(--surface);
}

.button.secondary {
    color: var(--blue);
    border-color: rgba(0, 102, 204, 0.34);
    background: transparent;
}

.button.secondary:hover {
    color: var(--blue-hover);
    border-color: rgba(0, 113, 227, 0.52);
}

.hero-note {
    margin-top: 26px;
    color: var(--secondary);
    font-size: 14px;
}

.hero-device-stage {
    position: relative;
    width: min(100%, 560px);
    margin-left: auto;
}

.phone-mock {
    background: #fbfbfd;
    border: 1px solid var(--hairline);
    border-radius: 38px;
    color: var(--ink);
    overflow: hidden;
}

.hero-phone {
    min-height: 650px;
    padding: 28px;
}

.phone-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--ink);
    font-size: 14px;
    font-weight: 600;
}

.mock-app-head {
    margin-top: 30px;
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
}

.mock-app-head span {
    display: block;
    color: var(--muted);
    font-size: 17px;
    font-weight: 600;
}

.mock-app-head strong {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    border: 1px solid var(--hairline);
    border-radius: 999px;
    padding: 0 16px;
    font-size: 15px;
}

.mock-calendar-grid {
    margin-top: 26px;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 12px 8px;
}

.mock-calendar-grid span {
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    font-size: 17px;
    font-weight: 600;
}

.mock-calendar-grid .muted {
    color: #b9b9bf;
}

.mock-calendar-grid .sun {
    color: #ff3b30;
}

.mock-calendar-grid .selected {
    background: var(--ink);
    color: var(--surface);
}

.mock-today {
    margin-top: 30px;
    border-top: 1px solid var(--hairline);
}

.mock-row {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px solid var(--soft-line);
}

.mock-row time {
    color: var(--secondary);
    font-size: 14px;
}

.mock-row strong {
    display: block;
    font-size: 18px;
}

.mock-row span {
    display: block;
    margin-top: 3px;
    color: var(--muted);
    font-size: 14px;
}

.mock-brief {
    margin-top: 24px;
    padding: 20px;
    border-radius: 22px;
    background: #f5f5f7;
    border: 1px solid var(--soft-line);
}

.mock-brief span {
    color: var(--blue);
    font-size: 13px;
    font-weight: 600;
}

.mock-brief strong {
    display: block;
    margin-top: 9px;
    font-size: 21px;
    line-height: 1.22;
    font-weight: 600;
}

.floating-note {
    position: absolute;
    width: 212px;
    padding: 16px;
    border: 1px solid var(--hairline);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: saturate(180%) blur(18px);
}

.floating-note.top {
    top: 84px;
    right: -26px;
}

.floating-note.bottom {
    left: -28px;
    bottom: 62px;
}

.floating-note strong,
.floating-note span {
    display: block;
}

.floating-note strong {
    font-size: 15px;
    font-weight: 600;
}

.floating-note span {
    margin-top: 6px;
    color: var(--muted);
    font-size: 13px;
}

.product-preview {
    width: 100%;
    border-radius: 28px;
    background: var(--canvas);
    border: 1px solid var(--hairline);
    padding: 12px;
}

.preview-shell {
    overflow: hidden;
    border-radius: 22px;
    background: var(--surface);
    border: 1px solid var(--soft-line);
}

.preview-top {
    min-height: 52px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--soft-line);
}

.preview-title {
    font-size: 15px;
    font-weight: 600;
}

.preview-pill {
    color: var(--blue);
    background: var(--blue-light);
    border-radius: 999px;
    padding: 5px 9px;
    font-size: 12px;
}

.preview-body {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(180px, 0.95fr);
}

.timeline {
    padding: 20px;
    border-right: 1px solid var(--soft-line);
}

.timeline-row {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 14px;
    padding: 15px 0;
    border-bottom: 1px solid var(--soft-line);
}

.timeline-row:first-child {
    padding-top: 0;
}

.timeline-row:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.time {
    color: var(--secondary);
    font-size: 13px;
}

.event-title {
    font-size: 16px;
    font-weight: 600;
}

.event-meta {
    margin-top: 3px;
    color: var(--muted);
    font-size: 13px;
}

.brief-panel {
    padding: 20px;
    background: #fbfbfd;
}

.brief-label {
    color: var(--secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.brief-title {
    margin-top: 8px;
    font-size: 24px;
    line-height: 1.16;
    font-weight: 600;
}

.brief-list {
    list-style: none;
    margin: 18px 0 0;
    padding: 0;
}

.brief-list li {
    padding: 12px 0;
    border-top: 1px solid var(--soft-line);
    color: var(--muted);
    font-size: 14px;
}

.tiles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 42px;
}

.intro-tile {
    background: var(--surface);
    border: 1px solid var(--soft-line);
    border-radius: 18px;
    padding: 26px;
}

.intro-number {
    color: var(--blue);
    font-size: 15px;
    font-weight: 600;
}

.intro-tile h3 {
    margin-top: 28px;
    font-size: 25px;
    line-height: 1.16;
    font-weight: 600;
}

.intro-tile p {
    margin-top: 12px;
    color: var(--muted);
    font-size: 16px;
}

.audience-grid {
    margin-top: 42px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--hairline);
}

.audience-card {
    padding: 28px 26px 28px 0;
    border-bottom: 1px solid var(--hairline);
}

.audience-card + .audience-card {
    padding-left: 26px;
    border-left: 1px solid var(--hairline);
}

.audience-card h3 {
    font-size: 25px;
    line-height: 1.16;
    font-weight: 600;
}

.audience-card p {
    margin-top: 12px;
    color: var(--muted);
    font-size: 16px;
}

.dark-band {
    background: #000;
    color: var(--dark-ink);
}

.dark-band .section-copy,
.dark-band .muted {
    color: var(--dark-muted);
}

.dark-product {
    margin-top: 44px;
    background: var(--dark);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 28px;
    overflow: hidden;
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
}

.dark-product-copy {
    padding: clamp(30px, 4vw, 52px);
}

.dark-product-copy h3 {
    font-size: clamp(34px, 4.2vw, 56px);
    line-height: 1.08;
    font-weight: 600;
}

.dark-product-copy p {
    margin-top: 20px;
    color: var(--dark-muted);
    font-size: 20px;
    line-height: 1.35;
}

.report-card {
    margin: 20px;
    background: #f5f5f7;
    color: var(--ink);
    border-radius: 24px;
    padding: 26px;
}

.report-card h4 {
    font-size: 18px;
    font-weight: 600;
}

.report-card .report-date {
    color: var(--muted);
    margin-top: 4px;
    font-size: 14px;
}

.report-section {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px solid var(--hairline);
}

.report-section strong {
    display: block;
    font-size: 15px;
    margin-bottom: 8px;
}

.report-section p {
    color: var(--muted);
    font-size: 15px;
    margin: 0;
}

.workflow {
    margin-top: 46px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--hairline);
    border-left: 1px solid var(--hairline);
    background: var(--surface);
}

.workflow-step {
    padding: 24px;
    border-right: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
}

.workflow-step span {
    display: inline-flex;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--blue);
    color: var(--surface);
    font-size: 15px;
    font-weight: 600;
}

.workflow-step h3 {
    margin-top: 24px;
    font-size: 21px;
    line-height: 1.19;
    font-weight: 600;
}

.workflow-step p {
    margin-top: 10px;
    color: var(--muted);
    font-size: 15px;
}

.feature-grid {
    margin-top: 46px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--hairline);
    border-left: 1px solid var(--hairline);
    background: var(--surface);
}

.feature {
    min-height: 214px;
    padding: 28px;
    border-right: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
}

.feature-kicker {
    color: var(--blue);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.feature h3 {
    margin-top: 34px;
    font-size: 24px;
    line-height: 1.1667;
    font-weight: 600;
}

.feature p {
    margin-top: 11px;
    color: var(--muted);
    font-size: 15px;
}

.feature-points {
    margin: 18px 0 0;
    padding: 0;
    list-style: none;
}

.feature-points li {
    padding: 9px 0;
    border-top: 1px solid var(--soft-line);
    color: var(--muted);
    font-size: 14px;
}

.screen-band {
    background: var(--surface);
    border-top: 1px solid var(--soft-line);
}

.mock-gallery {
    margin-top: 46px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.mock-card {
    min-height: 620px;
    border: 1px solid var(--hairline);
    border-radius: 24px;
    padding: 18px;
    background: var(--canvas);
    display: flex;
    flex-direction: column;
}

.mock-card.dark {
    background: #1d1d1f;
    color: var(--dark-ink);
    border-color: #1d1d1f;
}

.mini-phone {
    flex: 1;
    border-radius: 28px;
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--soft-line);
    padding: 24px;
    overflow: hidden;
}

.mock-card.dark .mini-phone {
    background: #f5f5f7;
}

.mini-title {
    color: var(--muted);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 22px;
}

.mini-row {
    display: grid;
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 14px 0;
    border-top: 1px solid var(--soft-line);
}

.mini-row span {
    color: var(--secondary);
    font-size: 13px;
}

.mini-row strong {
    font-size: 16px;
}

.mini-row.active strong {
    color: var(--blue);
}

.mini-chip {
    display: inline-flex;
    width: fit-content;
    margin-top: 12px;
    border-radius: 999px;
    padding: 8px 12px;
    background: var(--blue-light);
    color: var(--blue);
    font-size: 13px;
    font-weight: 600;
}

.person-dot {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
    border-radius: 50%;
    background: var(--blue);
    color: var(--surface);
    font-size: 27px;
    font-weight: 600;
}

.mini-phone p {
    margin: 12px 0 8px;
    color: var(--muted);
    font-size: 15px;
}

.brief-block {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--soft-line);
}

.brief-block span {
    display: block;
    color: var(--blue);
    font-size: 13px;
    font-weight: 600;
}

.brief-block strong {
    display: block;
    margin-top: 6px;
    font-size: 19px;
    line-height: 1.2;
}

.mock-card h3 {
    margin-top: 24px;
    font-size: 25px;
    line-height: 1.16;
    font-weight: 600;
}

.mock-card p {
    margin-top: 10px;
    color: var(--muted);
    font-size: 16px;
}

.mock-card.dark p {
    color: var(--dark-muted);
}

.plans {
    margin-top: 44px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.plan {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: 18px;
    padding: 30px;
}

.plan.highlight {
    border-color: rgba(0, 102, 204, 0.48);
}

.plan h3 {
    font-size: 28px;
    line-height: 1.1428;
    font-weight: 600;
}

.plan-price {
    margin-top: 10px;
    color: var(--muted);
    font-size: 17px;
}

.plan ul {
    list-style: none;
    margin: 26px 0 0;
    padding: 0;
}

.plan li {
    padding: 13px 0;
    border-top: 1px solid var(--soft-line);
    color: var(--muted);
    font-size: 15px;
}

.trust-band {
    background: var(--surface);
    border-top: 1px solid var(--soft-line);
}

.trust-list {
    margin-top: 38px;
    border-top: 1px solid var(--hairline);
}

.trust-row {
    display: grid;
    grid-template-columns: minmax(180px, 0.55fr) minmax(0, 1fr);
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid var(--hairline);
}

.trust-row h3 {
    font-size: 19px;
    font-weight: 600;
}

.trust-row p {
    color: var(--muted);
    margin: 0;
}

.site-footer {
    background: var(--canvas);
    border-top: 1px solid var(--hairline);
    color: var(--muted);
    font-size: 12px;
}

.footer-inner {
    width: min(100%, var(--max));
    margin: 0 auto;
    padding: 28px 22px 34px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 16px;
}

.legal-hero {
    width: min(100%, var(--legal-max));
    margin: 0 auto;
    padding: 68px 22px 26px;
}

.legal-hero .eyebrow {
    margin-bottom: 12px;
}

.legal-hero h1 {
    font-size: clamp(40px, 6vw, 64px);
    line-height: 1.0625;
    font-weight: 600;
}

.legal-updated {
    margin-top: 18px;
    color: var(--muted);
    font-size: 17px;
}

.legal-wrap {
    width: min(100%, var(--legal-max));
    margin: 0 auto;
    padding: 0 22px 76px;
}

.legal-document {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: 18px;
    padding: clamp(26px, 4vw, 44px);
}

.legal-document h2 {
    margin-top: 34px;
    margin-bottom: 10px;
    color: var(--ink);
    font-size: 22px;
    line-height: 1.1818;
    font-weight: 600;
}

.legal-document h2:first-child {
    margin-top: 0;
}

.legal-document p {
    margin: 0 0 13px;
    color: var(--muted);
}

.legal-document ul {
    margin: 0 0 15px;
    padding-left: 1.25rem;
    color: var(--muted);
}

.legal-document li {
    margin-bottom: 7px;
}

.legal-document a {
    color: var(--blue);
    text-decoration: underline;
    text-underline-offset: 0.16em;
}

@media (max-width: 920px) {
    .hero-grid,
    .dark-product {
        grid-template-columns: 1fr;
    }

    .hero .section {
        padding-top: 70px;
    }

    .product-preview {
        max-width: 720px;
    }

    .tiles,
    .audience-grid,
    .workflow,
    .feature-grid,
    .mock-gallery,
    .plans {
        grid-template-columns: 1fr;
    }

    .feature-grid,
    .workflow {
        border-left: 0;
    }

    .feature,
    .workflow-step {
        border-left: 1px solid var(--hairline);
    }

    .audience-card,
    .audience-card + .audience-card {
        padding-left: 0;
        padding-right: 0;
        border-left: 0;
    }

    .hero-device-stage {
        margin: 0;
    }

    .floating-note.top {
        right: 18px;
    }

    .floating-note.bottom {
        left: 18px;
    }
}

@media (max-width: 700px) {
    body {
        font-size: 16px;
    }

    .site-header {
        position: static;
    }

    .nav {
        min-height: 0;
        padding: 14px 18px;
        align-items: flex-start;
    }

    .nav-side {
        align-items: flex-end;
        gap: 10px;
        flex-direction: column-reverse;
    }

    .nav-links {
        max-width: 210px;
        justify-content: flex-end;
        flex-wrap: wrap;
        row-gap: 10px;
        white-space: normal;
        line-height: 1.2;
    }

    .section,
    .section.compact {
        padding: 64px 18px;
    }

    .hero .section {
        padding-top: 56px;
        padding-bottom: 52px;
    }

    .hero-grid {
        gap: 38px;
    }

    .hero h1 {
        font-size: 44px;
    }

    .section-title {
        font-size: 38px;
    }

    .hero-phone {
        min-height: 620px;
        padding: 22px;
    }

    .floating-note {
        position: static;
        width: auto;
        margin-top: 12px;
    }

    .mock-row {
        grid-template-columns: 54px minmax(0, 1fr);
    }

    .mock-gallery {
        gap: 18px;
    }

    .mock-card {
        min-height: 0;
    }

    .mini-phone {
        min-height: 360px;
    }

    .preview-body {
        grid-template-columns: 1fr;
    }

    .timeline {
        border-right: 0;
        border-bottom: 1px solid var(--soft-line);
    }

    .trust-row {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
        padding-left: 18px;
        padding-right: 18px;
    }

    .legal-hero,
    .legal-wrap {
        padding-left: 18px;
        padding-right: 18px;
    }

    .legal-document {
        border-radius: 14px;
    }
}