/* LDS 공통 스타일 - index.html / HEADER.html 공유 */
    /* ===== 디자인 토큰 (index.html 과 동일) ===== */
    :root {
        --bg-dark: #070913;
        --card-bg: rgba(15, 23, 42, 0.6);
        --card-border: rgba(255, 255, 255, 0.08);
        --card-hover-border: rgba(56, 189, 248, 0.4);

        --primary: #38bdf8;
        --primary-glow: rgba(56, 189, 248, 0.25);

        --text-main: #f8fafc;
        --text-muted: #94a3b8;
        --text-dim: #64748b;
    }

    * { margin: 0; padding: 0; box-sizing: border-box; }

    body {
        font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
        background-color: var(--bg-dark);
        color: var(--text-main);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        overflow-x: hidden;
        position: relative;
    }

    /* ===== 배경 효과 ===== */
    .bg-glow-1 {
        position: fixed; top: -10%; left: 20%;
        width: 600px; height: 600px;
        background: radial-gradient(circle, rgba(56, 189, 248, 0.12) 0%, rgba(0,0,0,0) 70%);
        border-radius: 50%; pointer-events: none; z-index: 0;
        animation: floatGlow 14s infinite alternate ease-in-out;
    }
    .bg-glow-2 {
        position: fixed; bottom: -15%; right: 15%;
        width: 700px; height: 700px;
        background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, rgba(0,0,0,0) 70%);
        border-radius: 50%; pointer-events: none; z-index: 0;
        animation: floatGlow 18s infinite alternate-reverse ease-in-out;
    }
    .bg-grid {
        position: fixed; top: 0; left: 0; width: 100%; height: 100%;
        background-image:
            linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
        background-size: 50px 50px;
        pointer-events: none; z-index: 0;
    }
    @keyframes floatGlow {
        0% { transform: translate(0, 0) scale(1); }
        100% { transform: translate(40px, 30px) scale(1.1); }
    }

    /* ===== 레이아웃 ===== */
    .wrapper {
        position: relative; z-index: 1;
        max-width: 1200px; margin: 0 auto;
        padding: 2.5rem 1.5rem; width: 100%;
        flex-grow: 1;
        display: flex; flex-direction: column;
    }

    /* ===== 헤더 ===== */
    header {
        display: flex; justify-content: space-between; align-items: center;
        gap: 1rem; flex-wrap: wrap;
        padding-bottom: 2rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        margin-bottom: 2.5rem;
    }
    .brand-container {
        display: flex; align-items: center; gap: 1rem;
        text-decoration: none; color: var(--text-main);
    }
    .logo-box {
        width: 52px; height: 52px;
        background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
        border-radius: 14px;
        display: flex; align-items: center; justify-content: center;
        font-size: 1.5rem; color: #ffffff;
        box-shadow: 0 8px 20px rgba(2, 132, 199, 0.35);
        border: 1px solid rgba(255, 255, 255, 0.2);
        position: relative; overflow: hidden;
    }
    .logo-box::after {
        content: ''; position: absolute;
        top: -50%; left: -50%; width: 200%; height: 200%;
        background: linear-gradient(45deg, transparent, rgba(255,255,255,0.3), transparent);
        transform: rotate(45deg);
        animation: shine 4s infinite;
    }
    @keyframes shine {
        0% { transform: translateX(-100%) rotate(45deg); }
        20%, 100% { transform: translateX(100%) rotate(45deg); }
    }
    .brand-text h1 {
        font-size: 1.6rem; font-weight: 700; letter-spacing: -0.02em;
        background: linear-gradient(to right, #ffffff, #94a3b8);
        -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    }
    .brand-text p {
        font-size: 0.85rem; color: var(--text-muted); font-weight: 400;
        display: flex; align-items: center; gap: 0.5rem;
    }


/* 공통 푸터 */
footer {
    margin-top: 3rem; padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center; color: var(--text-dim); font-size: 0.85rem;
}

/* 접근성: 모션 최소화 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
}