@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;700&family=Noto+Sans+KR:wght@400;500;700&display=swap");

:root {
    --seller-bg: #f8f6f1;
    --seller-bg-soft: #ffffff;
    --seller-panel: #ffffff;
    --seller-panel-strong: #fbfaf7;
    --seller-line: rgba(19, 24, 31, 0.12);
    --seller-line-soft: rgba(19, 24, 31, 0.08);
    --seller-text: #111317;
    --seller-text-soft: rgba(17, 19, 23, 0.66);
    --seller-accent: #d7b27a;
    --seller-accent-strong: #b5803f;
    --seller-shadow: 0 26px 70px rgba(20, 27, 32, 0.08);
    --seller-radius-xl: 34px;
    --seller-radius-lg: 24px;
    --seller-width: min(1220px, calc(100vw - 40px));
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at top left, rgba(213, 177, 122, 0.16), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #faf8f3 34%, #f5f1ea 100%);
    color: var(--seller-text);
    font-family: "Noto Sans KR", sans-serif;
}

img {
    display: block;
    width: 100%;
    max-width: 100%;
}

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

.seller-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px);
    background: rgba(255, 255, 255, 0.88);
    border-bottom: 1px solid var(--seller-line-soft);
}

.seller-header-inner,
.seller-hero-inner,
.seller-section,
.seller-footer-inner {
    width: var(--seller-width);
    margin: 0 auto;
}

.seller-header-inner {
    min-height: 86px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 20px;
}

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

.seller-logo-image {
    width: clamp(170px, 18vw, 250px);
    filter: none;
}

.seller-nav {
    display: flex;
    justify-content: center;
    gap: clamp(10px, 1.4vw, 22px);
    flex-wrap: wrap;
}

.seller-nav a,
.seller-header-cta,
.seller-band-track span,
.seller-stack-label,
.seller-card-label,
.seller-card-index,
.seller-kicker,
.seller-section-kicker {
    font-family: "Space Grotesk", sans-serif;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.seller-nav a {
    font-size: 0.84rem;
    color: var(--seller-text-soft);
    padding: 8px 0;
}

.seller-nav a:hover,
.seller-nav a:focus-visible {
    color: var(--seller-text);
    outline: none;
}

.seller-header-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    border-radius: 999px;
    background: #111317;
    color: #fff;
    font-size: 0.82rem;
    font-weight: 700;
}

.seller-hero {
    position: relative;
    overflow: hidden;
    padding: 56px 0 74px;
}

.seller-hero-media,
.seller-hero-scrim {
    display: none;
}

.seller-hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.28fr) minmax(310px, 0.72fr);
    gap: 28px;
    align-items: stretch;
}

.seller-kicker {
    margin: 0 0 18px;
    font-size: 0.82rem;
    color: var(--seller-accent-strong);
}

.seller-hero-copy h1,
.seller-section-heading h2,
.seller-copy-panel h2,
.seller-cta-copy h2 {
    margin: 0;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
}

.seller-hero-copy h1 {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: clamp(3.4rem, 8vw, 6.3rem);
    line-height: 0.92;
    max-width: 9ch;
}

.seller-lead {
    max-width: 37ch;
    margin: 26px 0 0;
    font-size: 1.06rem;
    line-height: 1.88;
    color: var(--seller-text-soft);
}

.seller-hero-actions,
.seller-cta-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.seller-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 20px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.seller-button:hover,
.seller-button:focus-visible,
.seller-header-cta:hover,
.seller-header-cta:focus-visible {
    transform: translateY(-2px);
    outline: none;
}

.seller-button-primary {
    background: #111317;
    color: #fff;
}

.seller-button-secondary,
.seller-button-dark {
    border-color: var(--seller-line);
    background: #fff;
    color: var(--seller-text);
}

.seller-hero-side {
    display: grid;
    gap: 18px;
}

.seller-signal-card,
.seller-feature-card,
.seller-metrics-grid article,
.seller-copy-panel,
.seller-list-card,
.seller-program-card,
.seller-stack-panel,
.seller-cta-block,
.seller-mini-stats article {
    border: 1px solid var(--seller-line);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(251, 250, 247, 0.98));
    box-shadow: var(--seller-shadow);
}

.seller-signal-card {
    padding: 28px;
    border-radius: var(--seller-radius-xl);
}

.seller-card-label {
    margin: 0 0 12px;
    font-size: 0.78rem;
    color: var(--seller-accent-strong);
}

.seller-signal-card strong {
    display: block;
    font-size: 1.52rem;
    margin-bottom: 12px;
}

.seller-signal-card p:last-child {
    margin: 0;
    line-height: 1.8;
    color: var(--seller-text-soft);
}

.seller-signal-card::after {
    content: "";
    display: block;
    width: 100%;
    height: 220px;
    margin-top: 20px;
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(17, 19, 23, 0.12), rgba(17, 19, 23, 0.02)),
        url("/homepage/images/THECAST%20(16)_main.jpg") center/cover;
}

.seller-mini-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.seller-mini-stats article {
    padding: 18px;
    border-radius: 20px;
}

.seller-mini-stats span,
.seller-program-card span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    border-radius: 999px;
    border: 1px solid var(--seller-line);
    color: var(--seller-accent-strong);
    font-family: "Space Grotesk", sans-serif;
    font-weight: 700;
}

.seller-mini-stats strong {
    display: block;
    margin-top: 16px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1rem;
}

.seller-mini-stats p {
    margin: 8px 0 0;
    color: var(--seller-text-soft);
    font-size: 0.92rem;
}

.seller-band {
    overflow: hidden;
    border-top: 1px solid var(--seller-line-soft);
    border-bottom: 1px solid var(--seller-line-soft);
    background: #fff;
}

.seller-band-track {
    display: flex;
    gap: 18px;
    padding: 16px 20px;
    white-space: nowrap;
    min-width: max-content;
}

.seller-band-track span {
    display: inline-flex;
    align-items: center;
    gap: 18px;
    font-size: 0.86rem;
    color: rgba(17, 19, 23, 0.52);
}

.seller-band-track span::after {
    content: "/";
    color: rgba(17, 19, 23, 0.22);
}

.seller-section {
    padding: 92px 0;
}

.seller-section-heading {
    max-width: 780px;
    margin-bottom: 36px;
}

.seller-section-kicker {
    margin: 0 0 12px;
    font-size: 0.82rem;
    color: var(--seller-accent);
}

.seller-section-heading h2,
.seller-copy-panel h2,
.seller-cta-copy h2 {
    font-size: clamp(2.4rem, 4vw, 4.2rem);
    line-height: 0.98;
}

.seller-section-heading p:last-child,
.seller-copy-panel p,
.seller-list-card p,
.seller-feature-card p,
.seller-program-card p,
.seller-stack-panel p,
.seller-cta-copy p,
.seller-metrics-lead p,
.seller-metrics-grid p,
.seller-footer-inner p {
    color: var(--seller-text-soft);
    line-height: 1.82;
}

.seller-feature-grid,
.seller-metrics-grid,
.seller-program-grid,
.seller-stack-panels {
    display: grid;
    gap: 18px;
}

.seller-feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.seller-feature-card {
    padding: 26px;
    border-radius: var(--seller-radius-lg);
}

.seller-card-index {
    margin: 0 0 18px;
    font-size: 0.84rem;
    color: var(--seller-accent);
}

.seller-feature-card strong,
.seller-list-card strong,
.seller-program-card strong,
.seller-stack-panel strong {
    display: block;
    font-size: 1.06rem;
    margin-bottom: 10px;
    font-family: "Space Grotesk", sans-serif;
}

.seller-section-metrics {
    border-top: 1px solid var(--seller-line-soft);
    border-bottom: 1px solid var(--seller-line-soft);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.24));
}

.seller-metrics-lead {
    max-width: 760px;
    margin-bottom: 30px;
}

.seller-metrics-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.seller-metrics-grid article {
    padding: 26px;
    border-radius: var(--seller-radius-lg);
}

.seller-metrics-grid strong {
    display: block;
    color: var(--seller-accent-strong);
    font-family: "Space Grotesk", sans-serif;
    font-size: 0.88rem;
    letter-spacing: 0.1em;
}

.seller-metrics-grid span {
    display: block;
    margin: 18px 0 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(2.1rem, 4vw, 3.2rem);
    line-height: 0.94;
}

.seller-two-column {
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
    gap: 22px;
    align-items: start;
}

.seller-copy-panel {
    padding: 32px;
    border-radius: var(--seller-radius-xl);
}

.seller-list-grid,
.seller-visual-stack {
    display: grid;
    gap: 18px;
}

.seller-list-card {
    padding: 22px;
    border-radius: 22px;
}

.seller-image-card {
    margin: 0;
    min-height: 260px;
    overflow: hidden;
    border-radius: var(--seller-radius-xl);
    border: 1px solid var(--seller-line);
}

.seller-image-card-large {
    min-height: 390px;
}

.seller-image-card img {
    height: 100%;
    object-fit: cover;
}

.seller-program-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.seller-program-card {
    padding: 26px;
    border-radius: var(--seller-radius-lg);
}

.seller-program-card strong {
    margin-top: 18px;
}

.seller-stack-panels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.seller-stack-panel {
    min-height: 280px;
    padding: 26px;
    border-radius: var(--seller-radius-xl);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(248, 244, 238, 0.92)),
        url("/homepage/images/thecast%20(20).jpg") center/cover;
    background-blend-mode: overlay;
}

.seller-stack-label {
    margin: 0 0 14px;
    font-size: 0.76rem;
    color: var(--seller-accent-strong);
}

.seller-cta-block {
    padding: 36px;
    border-radius: var(--seller-radius-xl);
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 24px;
    align-items: end;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(251, 250, 247, 0.98));
}

.seller-footer {
    border-top: 1px solid var(--seller-line-soft);
    padding: 0 0 48px;
}

.seller-footer-inner {
    padding-top: 28px;
}

.seller-footer-inner p {
    margin: 6px 0 0;
    font-size: 0.92rem;
}

@media (max-width: 1080px) {
    .seller-header-inner,
    .seller-hero-inner,
    .seller-two-column,
    .seller-cta-block {
        grid-template-columns: 1fr;
    }

    .seller-header-inner {
        padding: 16px 0;
        grid-template-columns: 1fr;
    }

    .seller-nav {
        justify-content: flex-start;
    }

    .seller-feature-grid,
    .seller-metrics-grid,
    .seller-program-grid,
    .seller-stack-panels {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .seller-header-inner {
        gap: 14px;
    }

    .seller-nav {
        gap: 8px 14px;
    }

    .seller-nav a {
        font-size: 0.76rem;
    }

    .seller-hero {
        padding: 44px 0 60px;
    }

    .seller-hero-copy h1 {
        font-size: clamp(2.7rem, 13vw, 4.4rem);
    }

    .seller-mini-stats,
    .seller-feature-grid,
    .seller-metrics-grid,
    .seller-program-grid,
    .seller-stack-panels {
        grid-template-columns: 1fr;
    }

    .seller-section {
        padding: 70px 0;
    }

    .seller-signal-card,
    .seller-feature-card,
    .seller-metrics-grid article,
    .seller-copy-panel,
    .seller-list-card,
    .seller-program-card,
    .seller-stack-panel,
    .seller-cta-block,
    .seller-mini-stats article {
        padding: 22px;
    }
}