:root {
    --blue: #1463f3;
    --blue-dark: #0d45bb;
    --blue-soft: #eaf3ff;
    --ink: #101522;
    --muted: #616b7d;
    --line: #dfe7f4;
    --panel: rgba(255, 255, 255, 0.92);
    --shadow: 0 18px 48px rgba(20, 55, 110, 0.12);
    --shell: 1478px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    font-family: "Noto Sans KR", sans-serif;
    background:
        radial-gradient(circle at 18% 12%, rgba(81, 137, 255, 0.13), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 48%, #f7fbff 100%);
}

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

button {
    font-family: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    height: 78px;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(193, 209, 232, 0.72);
    backdrop-filter: blur(18px);
}

.site-shell {
    width: min(var(--shell), calc(100% - 64px));
    height: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
}

.logo {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
}

.logo-icon {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-family: "Montserrat", sans-serif;
    font-size: 24px;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, #174eac, #082862);
    border-radius: 8px;
}

.logo-text {
    margin-left: 10px;
    color: #071d4f;
    font-family: "Montserrat", sans-serif;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo-image {
    display: block;
    width: 208px;
    height: auto;
}

.site-nav {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    gap: 44px;
    color: #202532;
    font-size: 16px;
    font-weight: 600;
    white-space: nowrap;
}

.site-nav a {
    position: relative;
    padding: 28px 0 25px;
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 12px;
    width: 0;
    height: 2px;
    background: var(--blue);
    border-radius: 999px;
    transform: translateX(-50%);
    transition: width 0.2s ease;
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
    width: 24px;
}

.header-download {
    min-width: 148px;
    height: 44px;
    padding: 0 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    color: #ffffff;
    font-weight: 800;
    background: linear-gradient(135deg, #1d73ff, #0753dd);
    border-radius: 8px;
    box-shadow: 0 14px 26px rgba(11, 90, 230, 0.22);
}

.header-download svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.landing {
    overflow: hidden;
}

.landing-shell {
    width: min(var(--shell), calc(100% - 64px));
    margin: 0 auto;
}

.landing-hero {
    position: relative;
    min-height: 392px;
    padding: 46px 0 18px;
    background:
        linear-gradient(115deg, rgba(255, 255, 255, 0.94) 0%, rgba(247, 251, 255, 0.82) 48%, rgba(231, 242, 255, 0.86) 100%),
        radial-gradient(circle at 79% 58%, rgba(42, 116, 255, 0.18), transparent 32%);
}

.landing-hero::before {
    content: "";
    position: absolute;
    inset: auto -120px 0 38%;
    height: 190px;
    background: linear-gradient(155deg, rgba(28, 106, 242, 0.12), rgba(255, 255, 255, 0));
    border-radius: 55% 0 0 0;
    pointer-events: none;
}

.hero-shell {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 690px;
    align-items: center;
    gap: 36px;
}

.hero-copy {
    position: relative;
    z-index: 2;
    padding-left: 64px;
}

.eyebrow {
    margin: 0 0 18px;
    color: #286fff;
    font-size: 26px;
    font-weight: 900;
    letter-spacing: -0.8px;
}

.hero-copy h1 {
    margin: 0;
    color: #0b101c;
    font-size: 50px;
    font-weight: 900;
    line-height: 1.26;
    letter-spacing: -2.3px;
}

.hero-copy h1 {
    word-break: keep-all;
}

.hero-copy h1::first-line {
    color: #0b101c;
}

.hero-copy h1 br + span {
    color: var(--blue-dark);
}

.summary {
    margin: 22px 0 0;
    color: #3d4658;
    font-size: 17px;
    font-weight: 500;
    line-height: 1.72;
    letter-spacing: -0.2px;
}

.download-actions {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 28px;
}

.download-button {
    height: 50px;
    padding: 0 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: 1px solid #cfd8e8;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.9);
    color: #151a24;
    font-size: 16px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(28, 61, 105, 0.06);
}

.download-button.primary {
    min-width: 205px;
    color: #ffffff;
    border-color: transparent;
    background: linear-gradient(135deg, #096bff, #064bd6);
    box-shadow: 0 16px 32px rgba(8, 88, 227, 0.28);
}

.download-button svg {
    width: 21px;
    height: 21px;
    fill: currentColor;
}

.store-apple,
.store-google {
    width: 24px;
    height: 24px;
    display: inline-block;
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
}

.store-apple {
    background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%23000' d='M16.7 13.1c0-2.3 1.9-3.4 2-3.5-1.1-1.6-2.7-1.8-3.3-1.8-1.4-.1-2.7.8-3.4.8-.7 0-1.8-.8-3-.8-1.5 0-2.9.9-3.7 2.2-1.6 2.8-.4 6.9 1.1 9.2.8 1.1 1.7 2.4 2.9 2.3 1.2 0 1.6-.7 3- .7s1.8.7 3 .7c1.3 0 2.1-1.1 2.8-2.2.9-1.3 1.2-2.5 1.2-2.6 0 0-2.6-1-2.6-3.6zM14.5 6.3c.6-.8 1.1-1.8 1-2.9-1 .1-2.1.7-2.8 1.5-.6.7-1.1 1.8-1 2.8 1.1.1 2.1-.5 2.8-1.4z'/%3E%3C/svg%3E");
}

.store-google {
    background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='%2300C853' d='M4 3.7v16.6l9.1-8.3L4 3.7z'/%3E%3Cpath fill='%23FFB300' d='m13.1 12 2.8 2.6 3.5-2c.8-.4.8-1.5 0-1.9l-3.5-2-2.8 3.3z'/%3E%3Cpath fill='%231976D2' d='m4 3.7 11.9 5-2.8 3.3L4 3.7z'/%3E%3Cpath fill='%23E53935' d='m4 20.3 11.9-5.7-2.8-2.6L4 20.3z'/%3E%3C/svg%3E");
}

.hero-visual {
    position: relative;
    min-height: 350px;
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
}

.hero-visual::before {
    content: "K";
    position: absolute;
    right: -6px;
    top: 48px;
    width: 190px;
    height: 190px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(20, 99, 243, 0.06);
    font-family: "Montserrat", sans-serif;
    font-size: 130px;
    font-weight: 900;
    background: rgba(255, 255, 255, 0.48);
    border-radius: 28px;
}

.hero-model {
    position: relative;
    z-index: 2;
    width: min(680px, 100%);
    height: auto;
    object-fit: contain;
}

.metric-section {
    position: relative;
    z-index: 3;
    margin-top: -10px;
}

.metric-strip {
    display: block;
    width: 100%;
    min-height: 88px;
    object-fit: cover;
    border: 1px solid rgba(210, 222, 240, 0.82);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.feature-section {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-top: 14px;
}

.feature-card {
    min-height: 228px;
    display: grid;
    grid-template-columns: 42% 1fr;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(212, 224, 240, 0.9);
    border-radius: 8px;
    box-shadow: 0 14px 34px rgba(20, 55, 110, 0.08);
}

.feature-image {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    min-width: 0;
    background: linear-gradient(180deg, #ffffff 0%, #eef6ff 100%);
}

.feature-image img {
    width: min(146px, 92%);
    height: auto;
    margin-top: 16px;
    filter: drop-shadow(0 10px 18px rgba(10, 29, 70, 0.16));
}

.feature-copy {
    padding: 26px 22px 22px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.feature-copy h2 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #151b29;
    font-size: 17px;
    font-weight: 900;
    letter-spacing: -0.5px;
}

.feature-copy p {
    margin: 22px 0 0;
    color: #4d586c;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.75;
    letter-spacing: -0.2px;
    word-break: keep-all;
}

.feature-copy a {
    margin-top: auto;
    color: #1767f2;
    font-size: 14px;
    font-weight: 800;
}

.feature-copy a::after {
    content: " ->";
}

.feature-icon {
    width: 28px;
    height: 28px;
    display: inline-block;
    border-radius: 8px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0)),
        var(--blue-soft);
}

.feature-icon.blue {
    background-color: #dceaff;
}

.feature-icon.gold {
    background-color: #fff0cf;
}

.feature-icon.pass {
    background-color: #e9ddff;
}

.feature-icon.info {
    background-color: #dff0ff;
}

.proof-section {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    margin-top: 18px;
    margin-bottom: 52px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(212, 224, 240, 0.9);
    border-radius: 8px;
    box-shadow: 0 14px 34px rgba(20, 55, 110, 0.08);
}

.proof-card {
    min-height: 104px;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 34px;
    border-right: 1px solid #e1e8f2;
}

.proof-card:last-child {
    border-right: 0;
}

.proof-card img,
.live-icon {
    width: 58px;
    height: 58px;
    flex: 0 0 auto;
    object-fit: contain;
    border-radius: 8px;
    background: #edf4ff;
}

.proof-icon {
    padding: 13px;
    object-fit: contain;
}

.proof-icon-download {
    background: #e3efff;
}

.proof-icon-rate {
    background: #e1f7ec;
}

.live-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7c3bd7;
    font-family: "Montserrat", sans-serif;
    font-size: 14px;
    font-weight: 900;
    background: #eee2ff;
}

.proof-card p {
    margin: 0;
    color: #242b38;
    font-size: 13px;
    font-weight: 800;
}

.proof-card strong {
    display: block;
    margin-top: 2px;
    color: #1767f2;
    font-family: "Montserrat", sans-serif;
    font-size: 25px;
    font-weight: 800;
    line-height: 1.15;
}

.proof-card span {
    display: block;
    margin-top: 4px;
    color: #667184;
    font-size: 12px;
    font-weight: 600;
}

.site-footer {
    padding: 34px 0 42px;
    color: #6c7688;
    background: #f2f6fb;
    border-top: 1px solid #dfe7f1;
}

.footer-inner {
    width: min(var(--shell), calc(100% - 64px));
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.footer-brand strong {
    display: block;
    color: #1a2740;
    font-family: "Montserrat", sans-serif;
    font-size: 18px;
    font-weight: 800;
}

.footer-brand span,
.footer-links a {
    color: #6c7688;
    font-size: 13px;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 18px;
}

@media (max-width: 1280px) {
    .site-nav {
        gap: 26px;
        font-size: 15px;
    }

    .hero-shell {
        grid-template-columns: 1fr 560px;
    }

    .hero-copy {
        padding-left: 28px;
    }

    .hero-copy h1 {
        font-size: 43px;
    }

    .feature-section,
    .proof-section {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .proof-card:nth-child(2) {
        border-right: 0;
    }
}

@media (max-width: 1040px) {
    .site-shell,
    .landing-shell,
    .footer-inner {
        width: min(100% - 36px, var(--shell));
    }

    .site-nav {
        display: none;
    }

    .hero-shell {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .hero-copy {
        padding: 0;
    }

    .hero-copy h1 {
        font-size: 38px;
    }

    .hero-visual {
        min-height: auto;
        justify-content: center;
    }

    .hero-model {
        width: min(620px, 100%);
    }
}

@media (max-width: 760px) {
    .site-header {
        height: 66px;
    }

    .logo-image {
        width: 166px;
    }

    .logo-text {
        font-size: 23px;
    }

    .header-download {
        min-width: 44px;
        width: 44px;
        padding: 0;
    }

    .header-download span {
        display: none;
    }

    .landing-hero {
        padding-top: 32px;
    }

    .eyebrow {
        font-size: 20px;
    }

    .hero-copy h1 {
        font-size: 31px;
        line-height: 1.32;
        letter-spacing: -1.2px;
    }

    .summary {
        font-size: 15px;
    }

    .download-actions {
        flex-wrap: wrap;
        gap: 10px;
    }

    .download-button {
        flex: 1 1 150px;
        padding: 0 16px;
    }

    .download-button.primary {
        flex-basis: 100%;
    }

    .metric-section {
        overflow-x: auto;
        padding-bottom: 4px;
    }

    .metric-strip {
        width: 940px;
        max-width: none;
    }

    .feature-section,
    .proof-section {
        grid-template-columns: 1fr;
    }

    .feature-card {
        grid-template-columns: 136px 1fr;
    }

    .feature-copy {
        padding: 22px 18px;
    }

    .proof-card,
    .proof-card:nth-child(2) {
        border-right: 0;
        border-bottom: 1px solid #e1e8f2;
    }

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

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .site-shell,
    .landing-shell,
    .footer-inner {
        width: min(100% - 24px, var(--shell));
    }

    .landing-hero {
        padding-top: 26px;
    }

    .hero-copy h1 {
        font-size: 27px;
    }

    .download-button {
        font-size: 14px;
    }

    .feature-card {
        grid-template-columns: 118px 1fr;
    }

    .feature-image img {
        width: 116px;
    }
}