/* =============================================
   NUTRIWORKS - Light Theme Stylesheet
   ============================================= */

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ─ 브랜드 컬러: 로고 터콰이즈 (#1FC9D2) 기반 ─ */
    --primary: #1abfc8;        /* 로고 메인 터콰이즈 */
    --primary-dark: #13949b;   /* 호버·다크 */
    --primary-light: #e4f8f9;  /* 연한 배경 틴트 */
    --accent: #0fa8b0;         /* 강조 포인트 */
    --accent-light: #cdf2f4;   /* 아이콘 배경·뱃지 */
    --text-dark: #0d2b2d;      /* 제목 텍스트 */
    --text-mid: #2d5154;       /* 본문 텍스트 */
    --text-light: #5e8284;     /* 보조 텍스트 */
    --bg-white: #ffffff;
    --bg-light: #f4fbfc;       /* 섹션 배경 (살짝 터콰이즈 틴트) */
    --bg-lighter: #eaf6f7;
    --border: #c8e9eb;         /* 테두리 (터콰이즈 틴트) */
    --shadow-sm: 0 2px 8px rgba(26,191,200,0.08);
    --shadow-md: 0 4px 20px rgba(26,191,200,0.12);
    --shadow-lg: 0 8px 40px rgba(26,191,200,0.16);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --transition: 0.3s ease;
    --font-ko: 'Noto Sans KR', sans-serif;
    --font-en: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-ko);
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
}

/* 영문 모드: body 폰트를 Inter로 전환 */
html[lang="en"] body {
    font-family: var(--font-en);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

ul { list-style: none; }

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

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

.pc-only { display: inline; }

/* =============================================
   NAVBAR
   ============================================= */
#navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: box-shadow var(--transition);
}

#navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

/* 로고 이미지 사용 시 */
.logo-img {
    height: 36px;
    width: auto;
    object-fit: contain;
    display: block;
}

/* 텍스트 로고 fallback */
.logo-text {
    font-family: var(--font-en);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 0.08em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    font-family: var(--font-en);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-mid);
    letter-spacing: 0.06em;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 모바일 전용 언어 버튼 — 기본 숨김 */
.lang-toggle-mobile {
    display: none;
    align-items: center;
    gap: 3px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 4px 8px;
    cursor: pointer;
    font-family: var(--font-en);
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--text-mid);
    letter-spacing: 0.04em;
    transition: all var(--transition);
}

.lang-toggle-mobile i {
    font-size: 0.72rem;
    color: var(--primary);
}

.lang-toggle-mobile:hover,
.lang-toggle-mobile[data-lang="en"] {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

.lang-current-m {
    font-weight: 800;
    color: var(--primary);
}

/* PC에서 nav-links 안 언어버튼 표시 */
.pc-only-flex { display: list-item; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all var(--transition);
}

.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }


/* =============================================
   LANGUAGE TOGGLE BUTTON
   ============================================= */
.lang-toggle {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 50px;
    padding: 6px 13px;
    cursor: pointer;
    font-family: var(--font-en);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-mid);
    letter-spacing: 0.06em;
    transition: all var(--transition);
    white-space: nowrap;
}

.lang-toggle i {
    font-size: 0.85rem;
    color: var(--primary);
}

.lang-toggle:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

.lang-toggle[data-lang="en"] {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

.lang-current {
    color: var(--primary);
    font-weight: 800;
}

.lang-divider {
    color: var(--border);
    font-weight: 400;
}

.lang-other {
    color: var(--text-light);
    font-weight: 600;
}

.lang-toggle:hover .lang-other {
    color: var(--primary);
}


/* =============================================
   BUTTONS
   ============================================= */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    padding: 13px 28px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all var(--transition);
    border: 2px solid var(--primary);
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(26,124,90,0.3);
    color: #fff;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    color: #fff;
    padding: 13px 28px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: all var(--transition);
    border: 2px solid rgba(255,255,255,0.7);
    cursor: pointer;
}

.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
    transform: translateY(-2px);
    color: #fff;
}


/* =============================================
   SECTION COMMON
   ============================================= */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-eyebrow {
    font-family: var(--font-en);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.3;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* Fade-in on scroll */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}


/* =============================================
   HERO SECTION
   ============================================= */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    padding: 0 !important;          /* 전역 section padding 무효화 */
    overflow: hidden;
    display: flex;
    align-items: center;
    background-color: #0a1a2e;      /* 이미지 로드 전 폴백 */
}

.hero-bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-width: none !important;     /* 전역 img max-width 무효화 */
    object-fit: cover;
    object-position: center center;
    z-index: 0;
    pointer-events: none;
    user-select: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: linear-gradient(
        105deg,
        rgba(5, 20, 40, 0.65) 0%,
        rgba(8, 30, 55, 0.50) 60%,
        rgba(5, 35, 50, 0.30) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1180px;
    margin: 0 auto;
    padding: 120px 24px 80px;
    width: 100%;
}

.hero-eyebrow {
    font-family: var(--font-en);
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255,255,255,0.95);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-eyebrow::before {
    content: '';
    display: block;
    width: 32px;
    height: 2px;
    background: var(--accent);
}

.hero-title {
    font-size: clamp(1.2rem, 2.4vw, 1.92rem);
    font-weight: 800;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 24px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.75), 0 4px 24px rgba(0,0,0,0.55);
}

.hero-accent {
    color: #7af3f8;
    text-shadow: 0 2px 8px rgba(0,0,0,0.75), 0 4px 24px rgba(0,0,0,0.55);
}

.hero-desc {
    font-size: 1.05rem;
    color: #fff;
    line-height: 1.9;
    margin-bottom: 40px;
    max-width: 560px;
    text-shadow: 0 1px 6px rgba(0,0,0,0.80), 0 3px 16px rgba(0,0,0,0.55);
}

.hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    right: 40px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.hero-scroll span {
    font-family: var(--font-en);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: rgba(255,255,255,0.7);
    writing-mode: vertical-rl;
    transform: rotate(180deg);
}

.scroll-line {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.7), transparent);
    animation: scrollDown 1.5s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}


/* home-business section removed — merged into BUSINESS section */


/* =============================================
   ABOUT SECTION
   ============================================= */
.about-section {
    background: var(--bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-img-wrap {
    position: relative;
}

.about-img {
    width: 100%;
    height: 520px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-badge {
    position: absolute;
    bottom: 30px;
    right: -24px;
    background: #fff;
    border-radius: var(--radius-md);
    padding: 18px 22px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.about-badge i {
    font-size: 1.8rem;
    color: var(--primary);
}

.about-badge strong {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-dark);
}

.about-badge span {
    font-size: 0.8rem;
    color: var(--text-light);
}

.about-content .section-title {
    text-align: left;
    font-size: 2rem;
}

.about-content .section-eyebrow {
    display: block;
}

.about-text {
    font-size: 0.95rem;
    color: var(--text-mid);
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 28px 0 36px;
}

.af-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-mid);
    font-weight: 500;
}

.af-item i {
    color: var(--accent);
    font-size: 0.9rem;
    flex-shrink: 0;
}


/* =============================================
   BUSINESS SECTION
   ============================================= */
.business-section {
    background: var(--bg-light);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.business-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.business-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
    border-color: transparent;
}

.business-card.featured .bc-img {
    height: 220px;
}

.business-card:not(.featured) .bc-img {
    height: 180px;
}

.bc-img {
    position: relative;
    overflow: hidden;
}

.bc-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.business-card:hover .bc-img img {
    transform: scale(1.05);
}

.bc-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26,124,90,0.6), transparent);
    display: flex;
    align-items: flex-end;
    padding: 16px;
}

.bc-tag {
    font-family: var(--font-en);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #fff;
    background: var(--accent);
    padding: 4px 10px;
    border-radius: 20px;
}

.bc-content {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bc-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
}

.bc-content h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.4;
}

.bc-content p {
    font-size: 0.88rem;
    color: var(--text-light);
    line-height: 1.75;
}

/* Last row: 2 cards centered */
.business-grid .business-card:nth-child(4),
.business-grid .business-card:nth-child(5) {
    grid-column: auto;
}

.business-grid {
    grid-template-columns: repeat(3, 1fr);
}

.business-card:nth-child(4) { grid-column: 1; }
.business-card:nth-child(5) { grid-column: 2; }


/* =============================================
   SERVICE SECTION
   ============================================= */
.service-section {
    background: var(--bg-white);
}

.service-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-card {
    background: var(--bg-white);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
    cursor: pointer;
}

.service-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.service-card.open {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.sc-header {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px 32px;
    transition: background var(--transition);
}

.service-card:hover .sc-header,
.service-card.open .sc-header {
    background: var(--primary-light);
}

.sc-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
    flex-shrink: 0;
    transition: all var(--transition);
}

.service-card.open .sc-icon {
    background: var(--primary);
    color: #fff;
}

.sc-title-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}

.sc-title-wrap h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-dark);
}

.sc-badge {
    font-family: var(--font-en);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--primary);
    background: var(--accent-light);
    padding: 3px 10px;
    border-radius: 20px;
    white-space: nowrap;
}

.sc-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    background: var(--bg-white);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--transition);
}

.sc-toggle i {
    transition: transform var(--transition);
}

.service-card.open .sc-toggle i {
    transform: rotate(180deg);
}

.service-card.open .sc-toggle {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

.sc-summary {
    font-size: 0.9rem;
    color: var(--text-light);
    padding: 0 32px 24px 108px;
    margin-top: -10px;
}

/* Detail Panel */
.sc-detail {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
}

.service-card.open .sc-detail {
    max-height: 600px;
}

.sc-detail-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border-top: 1px solid var(--border);
    background: var(--bg-light);
}

.scd-img {
    overflow: hidden;
    position: relative;
}

.scd-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 280px;
    transition: transform 0.5s ease;
}

/* eCRF 이미지 — 전체 화면 잘림 없이 축소 표시 + 살짝 흐림 */
.scd-img.ecrf-full {
    background: #eaf3f5;
    display: flex;
    align-items: center;
    justify-content: center;
}
.scd-img.ecrf-full img {
    object-fit: contain;
    object-position: center center;
    width: 100%;
    height: auto;
    min-height: unset;
    max-height: 100%;
    filter: blur(0.7px) brightness(0.98);
}



.service-card:hover .scd-img img {
    transform: scale(1.03);
}

.scd-content {
    padding: 36px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.scd-content h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-dark);
}

.scd-content p {
    font-size: 0.9rem;
    color: var(--text-mid);
    line-height: 1.8;
}

.scd-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 4px;
}

.scd-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-mid);
    line-height: 1.5;
}

.scd-list li i {
    color: var(--accent);
    font-size: 0.85rem;
    margin-top: 3px;
    flex-shrink: 0;
}


/* =============================================
   NETWORK SECTION
   ============================================= */
.network-section {
    background: var(--bg-light);
}

.partner-section {
    margin-bottom: 72px;
}

.partner-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
    text-align: center;
}

.partner-desc {
    font-size: 0.9rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 40px;
}

.partner-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

/* Partner Carousel */
.partner-carousel-wrap {
    display: flex;
    align-items: center;
    gap: 16px;
}

.partner-carousel-viewport {
    flex: 1;
    overflow: hidden;
}

.partner-carousel-track {
    display: flex;
    gap: 20px;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.partner-logo-item {
    flex: 0 0 calc((100% - 40px) / 3);
    aspect-ratio: 16/7;
    background: var(--bg-white);
    border: 1.5px dashed var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.partner-logo-item:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-sm);
}

/* Carousel 버튼 */
.carousel-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1.5px solid var(--border);
    background: var(--bg-white);
    color: var(--text-mid);
    font-size: 0.9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.carousel-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: var(--shadow-md);
}

.carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Carousel 인디케이터 dots */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    padding: 0;
}

.carousel-dot.active {
    background: var(--primary);
    width: 24px;
    border-radius: 4px;
}

/* Actual logo image */
.partner-logo-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px 24px;
    filter: grayscale(20%);
    transition: filter var(--transition);
}

.partner-logo-item:hover img {
    filter: grayscale(0%);
}

/* Placeholder (before logo is added) */
.logo-placeholder {
    width: 100%;
    height: 100%;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--border);
    transition: color var(--transition);
}

.partner-logo-item:hover .logo-placeholder {
    color: var(--accent);
}

.logo-placeholder i {
    font-size: 1.6rem;
}

.logo-placeholder span {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.04em;
}

/* Partner upload guide box */
.partner-upload-guide {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: var(--primary-light);
    border: 1.5px solid var(--accent-light);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin-top: 20px;
}

.pug-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.pug-text strong {
    display: block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.pug-text p {
    font-size: 0.82rem;
    color: var(--text-mid);
    line-height: 1.7;
}

.pug-text code {
    font-size: 0.78rem;
    background: rgba(26,191,200,0.15);
    padding: 2px 7px;
    border-radius: 4px;
    color: var(--primary-dark);
    font-family: monospace;
}

/* Network CTA */
.network-cta {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.cta-content {
    padding: 60px 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 18px;
}

.cta-content h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-dark);
}

.cta-content p {
    font-size: 0.95rem;
    color: var(--text-mid);
    line-height: 1.8;
}

.cta-img {
    overflow: hidden;
    min-height: 300px;
}

.cta-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.cta-img:hover img {
    transform: scale(1.04);
}


/* =============================================
   FOOTER
   ============================================= */
#footer {
    background: #062b2e;
    color: rgba(255,255,255,0.7);
    padding: 48px 0;
}

.footer-simple {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}

/* 푸터 로고 이미지 */
.footer-logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
    display: block;
    filter: brightness(0) invert(1);
}

.footer-simple p {
    font-size: 0.87rem;
    color: rgba(255,255,255,0.55);
}

.footer-copy {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.3);
    margin-top: 4px;
}


/* =============================================
   SCROLL TO TOP
   ============================================= */
.scroll-top {
    position: fixed;
    bottom: 36px;
    right: 36px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: 0 4px 16px rgba(26,124,90,0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all var(--transition);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}


/* =============================================
   RESPONSIVE
   ============================================= */

/* Tablet */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .about-badge {
        right: 20px;
    }
    .about-img {
        height: 380px;
    }
    .business-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .business-card:nth-child(4),
    .business-card:nth-child(5) {
        grid-column: auto;
    }

    .partner-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .network-cta {
        grid-template-columns: 1fr;
    }
    .cta-img {
        min-height: 240px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .pc-only { display: none; }

    section { padding: 72px 0; }

    .section-title { font-size: 1.7rem; }

    /* Nav */
    .hamburger { display: flex; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0; right: 0;
        background: #fff;
        padding: 16px 24px 24px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        gap: 4px;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-link {
        width: 100%;
        padding: 12px 16px;
        font-size: 0.9rem;
    }
    /* 모바일: nav-links 안 언어버튼 숨기고 헤더 아이콘으로 표시 */
    .pc-only-flex { display: none !important; }
    .lang-toggle-mobile { display: flex; }

    /* Hero */
    .hero-title { font-size: 1.14rem; }
    .hero-eyebrow { font-size: 0.6rem; letter-spacing: 0.1em; white-space: nowrap; }
    .hero-eyebrow::before { width: 20px; }
    .hero-desc { font-size: 0.88rem; line-height: 1.7; }
    .hero-btns { flex-direction: column; align-items: flex-start; }
    .hero-scroll { display: none; }

    /* About */
    .about-img { height: 280px; }
    .about-badge { right: 12px; bottom: 16px; }
    .about-features { grid-template-columns: 1fr; }

    /* Business */
    .business-grid { grid-template-columns: 1fr; }
    .business-card:nth-child(4),
    .business-card:nth-child(5) { grid-column: auto; }

    /* Service */
    .sc-header { padding: 22px 20px; gap: 14px; }
    .sc-summary { padding: 0 20px 18px 20px; }
    .sc-detail-inner { grid-template-columns: 1fr; }
    .scd-img img { min-height: 200px; }
    .scd-content { padding: 24px; }
    .sc-title-wrap h3 { font-size: 0.95rem; }
    .service-card.open .sc-detail { max-height: 900px; }

    /* Network / Partners */
    .partner-carousel-wrap { gap: 8px; }
    .carousel-btn { width: 32px; height: 32px; font-size: 0.75rem; }
    .partner-logo-item {
        flex: 0 0 100%;
        aspect-ratio: 16 / 6;
    }
    .network-cta { grid-template-columns: 1fr; }
    .cta-content { padding: 40px 28px; }



    /* Scroll top */
    .scroll-top { bottom: 24px; right: 20px; }
}

@media (max-width: 480px) {
    .section-title { font-size: 1.45rem; }
    .hero-title { font-size: 0.96rem; }
    .hero-eyebrow { font-size: 0.55rem; }
    .hero-desc { font-size: 0.82rem; }
    .partner-grid { grid-template-columns: repeat(2, 1fr); }
}