/* ============================================================================
   header-modern.css — 2026-05 헤더 리뉴얼 (토스/당근 스타일 미니멀)

   원칙:
   - 메뉴 4개 + "더보기" 드롭다운 — 정신없는 11개 메뉴 줄이기
   - 폰트 두께 600, 크기 15px — 명확한 위계
   - 그림자 거의 없음, 둥근 모서리 12px
   - 활성 메뉴는 색만 강조 (밑줄 X)
   - 다크/라이트 모두 토큰 기반 자동
   - 모바일은 햄버거 + slide-down (한 손 조작)
   ============================================================================ */

:root {
    --ro-hdr-h:          64px;
    --ro-hdr-bg:         #ffffff;
    --ro-hdr-border:     rgba(15, 23, 42, 0.06);
    --ro-hdr-text:       #0F172A;
    --ro-hdr-text-sub:   #64748B;
    --ro-hdr-text-hover: #0F172A;
    --ro-hdr-active:     #8BC53F;
    --ro-hdr-shadow:     0 1px 0 rgba(15, 23, 42, 0.04);
    --ro-hdr-dd-bg:      #ffffff;
    --ro-hdr-dd-shadow:  0 12px 32px rgba(15, 23, 42, 0.08), 0 2px 6px rgba(15, 23, 42, 0.04);
    --ro-hdr-dd-border:  rgba(15, 23, 42, 0.06);
    --ro-hdr-dd-hover:   rgba(139, 197, 63, 0.08);
    --ro-hdr-icon-bg:    transparent;
    --ro-hdr-icon-hover: rgba(15, 23, 42, 0.06);
}
html[data-theme="dark"] {
    --ro-hdr-bg:         #0F1419;
    --ro-hdr-border:     rgba(255, 255, 255, 0.08);
    --ro-hdr-text:       #E5EAF0;
    --ro-hdr-text-sub:   #94A3B8;
    --ro-hdr-text-hover: #ffffff;
    --ro-hdr-shadow:     0 1px 0 rgba(255, 255, 255, 0.04);
    --ro-hdr-dd-bg:      #1A2028;
    --ro-hdr-dd-shadow:  0 12px 32px rgba(0, 0, 0, 0.4), 0 2px 6px rgba(0, 0, 0, 0.2);
    --ro-hdr-dd-border:  rgba(255, 255, 255, 0.08);
    --ro-hdr-dd-hover:   rgba(139, 197, 63, 0.12);
    --ro-hdr-icon-hover: rgba(255, 255, 255, 0.08);
}

/* ── 헤더 컨테이너 ──────────────────────────────────────────────────────── */
.ro-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    height: var(--ro-hdr-h);
    background: var(--ro-hdr-bg);
    border-bottom: 1px solid var(--ro-hdr-border);
    box-shadow: var(--ro-hdr-shadow);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
}
.ro-nav__inner {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ── 로고 ────────────────────────────────────────────────────────────── */
.ro-nav__logo {
    display: inline-flex;
    align-items: center;
    margin-right: 8px;
    text-decoration: none;
    color: var(--ro-hdr-text);
    font-weight: 800;
    font-size: 18px;
    letter-spacing: -0.02em;
    line-height: 1;
}
.ro-nav__logo img {
    height: 28px;
    width: auto;
    display: block;
}

/* ── 메뉴 (데스크탑) ──────────────────────────────────────────────────── */
.ro-nav__menu {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0;
    padding: 0;
    list-style: none;
    flex: 1;
}
.ro-nav__item {
    position: relative;
}
.ro-nav__link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    height: 40px;
    border-radius: 10px;
    color: var(--ro-hdr-text-sub);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1;
    cursor: pointer;
    transition: color 160ms, background-color 160ms;
    background: transparent;
    border: none;
    font-family: inherit;
}
.ro-nav__link:hover {
    color: var(--ro-hdr-text-hover);
    background: var(--ro-hdr-icon-hover);
}
.ro-nav__link[aria-current="page"],
.ro-nav__link.is-active {
    color: var(--ro-hdr-active);
}
.ro-nav__link svg.caret {
    width: 14px;
    height: 14px;
    opacity: 0.6;
    transition: transform 160ms;
}
.ro-nav__item.is-open .ro-nav__link svg.caret {
    transform: rotate(180deg);
}

/* ── 드롭다운 ────────────────────────────────────────────────────────── */
.ro-nav__dd {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 240px;
    background: var(--ro-hdr-dd-bg);
    border: 1px solid var(--ro-hdr-dd-border);
    border-radius: 14px;
    box-shadow: var(--ro-hdr-dd-shadow);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity 160ms, transform 160ms, visibility 0s 160ms;
}
.ro-nav__item.is-open .ro-nav__dd {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition-delay: 0s;
}
.ro-nav__dd-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--ro-hdr-text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    transition: background 160ms;
}
.ro-nav__dd-link:hover {
    background: var(--ro-hdr-dd-hover);
    color: var(--ro-hdr-active);
}
.ro-nav__dd-link .ic {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    border-radius: 8px;
    background: rgba(139, 197, 63, 0.1);
    color: var(--ro-hdr-active);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}
.ro-nav__dd-link .meta {
    flex: 1;
    min-width: 0;
}
.ro-nav__dd-link .meta strong {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 1px;
}
.ro-nav__dd-link .meta span {
    display: block;
    font-size: 11px;
    color: var(--ro-hdr-text-sub);
    font-weight: 400;
    line-height: 1.3;
}
.ro-nav__dd-divider {
    height: 1px;
    background: var(--ro-hdr-dd-border);
    margin: 6px 4px;
}
.ro-nav__dd-section {
    padding: 4px 12px 4px;
    font-size: 11px;
    font-weight: 700;
    color: var(--ro-hdr-text-sub);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ── 우측 액션 영역 ────────────────────────────────────────────────────── */
.ro-nav__actions {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}
.ro-nav__icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--ro-hdr-icon-bg);
    color: var(--ro-hdr-text);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background 160ms;
}
.ro-nav__icon-btn:hover {
    background: var(--ro-hdr-icon-hover);
}
.ro-nav__icon-btn svg {
    width: 20px;
    height: 20px;
}

/* 로그인/회원 칩 */
.ro-nav__login {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0 14px;
    height: 40px;
    border-radius: 10px;
    background: transparent;
    color: var(--ro-hdr-text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    transition: background 160ms;
}
.ro-nav__login:hover {
    background: var(--ro-hdr-icon-hover);
}
.ro-nav__login__avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--ro-hdr-icon-hover);
}

/* 다운로드 CTA (primary) */
.ro-nav__cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0 16px;
    height: 40px;
    border-radius: 10px;
    background: #0F172A;
    color: #ffffff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    transition: background 160ms, transform 160ms;
    border: none;
    cursor: pointer;
}
.ro-nav__cta:hover {
    background: #1E293B;
    transform: translateY(-1px);
}
html[data-theme="dark"] .ro-nav__cta {
    background: #8BC53F;
    color: #0F172A;
}
html[data-theme="dark"] .ro-nav__cta:hover {
    background: #7BB52F;
}

/* 다크모드 토글 — 부드러운 sun/moon 전환 */
.ro-nav__theme {
    position: relative;
}
.ro-nav__theme svg { transition: opacity 220ms, transform 220ms; }
.ro-nav__theme .sun { display: block; }
.ro-nav__theme .moon { display: none; }
html[data-theme="dark"] .ro-nav__theme .sun { display: none; }
html[data-theme="dark"] .ro-nav__theme .moon { display: block; }

/* ── 햄버거 (모바일) ──────────────────────────────────────────────────── */
.ro-nav__hamburger {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: transparent;
    border: none;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    color: var(--ro-hdr-text);
}
.ro-nav__hamburger:hover {
    background: var(--ro-hdr-icon-hover);
}
.ro-nav__hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    position: relative;
}
.ro-nav__hamburger span::before,
.ro-nav__hamburger span::after {
    content: '';
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 220ms, top 220ms, opacity 160ms;
}
.ro-nav__hamburger span::before { top: -6px; }
.ro-nav__hamburger span::after  { top: 6px; }
.ro-nav__hamburger.is-open span { background: transparent; }
.ro-nav__hamburger.is-open span::before { top: 0; transform: rotate(45deg); }
.ro-nav__hamburger.is-open span::after  { top: 0; transform: rotate(-45deg); }

/* ── 모바일 슬라이드 메뉴 ─────────────────────────────────────────────── */
.ro-nav__sheet {
    position: fixed;
    top: var(--ro-hdr-h);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--ro-hdr-bg);
    z-index: 99;
    overflow-y: auto;
    padding: 16px 20px 40px;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: transform 240ms, opacity 240ms;
}
.ro-nav__sheet.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}
.ro-nav__sheet-section {
    margin-bottom: 18px;
}
.ro-nav__sheet-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--ro-hdr-text-sub);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 8px 4px;
    margin: 0;
}
.ro-nav__sheet-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 8px;
    border-radius: 10px;
    color: var(--ro-hdr-text);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    transition: background 160ms;
}
.ro-nav__sheet-link:hover, .ro-nav__sheet-link[aria-current="page"] {
    background: var(--ro-hdr-dd-hover);
}
.ro-nav__sheet-link .ic {
    width: 28px;
    text-align: center;
}

/* ── 반응형 ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .ro-nav__menu { display: none; }
    .ro-nav__hamburger { display: inline-flex; }
    .ro-nav__cta { display: none; }
    .ro-nav__login .ro-nav__login-text { display: none; }
}
@media (max-width: 600px) {
    .ro-nav__inner { padding: 0 14px; gap: 4px; }
    .ro-nav__icon-btn { width: 36px; height: 36px; }
    .ro-nav__hamburger { width: 36px; height: 36px; }
}

/* ── 접근성 / 모션 ───────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    .ro-nav__dd, .ro-nav__sheet, .ro-nav__hamburger span,
    .ro-nav__hamburger span::before, .ro-nav__hamburger span::after,
    .ro-nav__cta { transition: none !important; }
    .ro-nav__cta:hover { transform: none; }
}
.ro-nav__link:focus-visible,
.ro-nav__icon-btn:focus-visible,
.ro-nav__login:focus-visible,
.ro-nav__cta:focus-visible,
.ro-nav__hamburger:focus-visible,
.ro-nav__dd-link:focus-visible,
.ro-nav__sheet-link:focus-visible {
    outline: 2px solid var(--ro-hdr-active);
    outline-offset: 2px;
}

/* ── 기존 헤더 숨김 (충돌 방지) ───────────────────────────────────────── */
.runneron_header { display: none !important; }