:root {
    --bg: #1a1a1a;
    /* 다크 배경 */
    --text: #e9e9e9;
    /* 본문 글자 */
    --muted: #cfcfcf;
    /* 약한 글자 */
    --accent: #ffd21f;
    /* 하단 옐로우 바 */
    --divider: #2b2b2b;
    --maxw: 1080px;
}

* {
    box-sizing: border-box
}

.bg-light-dk {
    background-color :white !important;
}

html,
body {
    height: 100%
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Apple SD Gothic Neo, Malgun Gothic, Helvetica, Arial, sans-serif;
    background: #0e0e0e;
    color: var(--text)
}

main {
    min-height: 40vh
}

footer {
    background: var(--bg);
    color: var(--text);
}

.wrap {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 40px 20px
}

.head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 22px
}

/* 임시 로고 (원형 안 ad / for / us) */
.mark {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: #111;
    position: relative;
    overflow: hidden;
    border: 1px solid #333;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .35)
}

.mark::before {
    content: "ad";
    position: absolute;
    left: 9px;
    top: 6px;
    font-weight: 700;
    font-size: 12px;
    color: #ffd21f
}

.mark::after {
    content: "us";
    position: absolute;
    right: 9px;
    bottom: 6px;
    font-weight: 700;
    font-size: 12px;
    color: #ffd21f
}

.for {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: 11px;
    color: #fff;
    opacity: .85
}

.word {
    font-weight: 800;
    letter-spacing: .5px;
    font-size: 30px
}

.lines {
    margin-top: 18px
}

.line {
    color: var(--muted);
    font-size: 14.5px;
    line-height: 1.9
}

/* 하단 옐로우 바 */
.bar {
    background: var(--accent);
    color: #000;
}

.bar .inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    gap: 14px;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    font-size: 14.5px;
    font-weight: 600
}

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

.bar a {
    color: #000;
    text-decoration: none
}

.bar a:hover {
    text-decoration: underline
}

/* 반응형 */
@media (max-width:720px) {
    .word {
        font-size: 24px
    }

    .line {
        font-size: 14px
    }

    .bar .inner {
        justify-content: center;
        gap: 10px;
        text-align: center
    }
}