/* INFERA - Common Styles */
:root { --main: #0055ff; --main-dark: #0044cc; --black: #111; --gray: #666; --light: #999; --bg: #f5f5f5; --white: #fff; --dark-bg: #0a0a1a; --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06); --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1); --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.15); --transition-fast: 0.2s ease; --transition-normal: 0.3s ease; --header-height: 80px; }
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Noto Serif KR', 'Playfair Display', Georgia, serif; font-size: 17px; line-height: 1.9; color: var(--black); background: var(--white); word-break: keep-all; overflow-x: hidden; letter-spacing: 0.02em; font-weight: 400; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
strong { font-weight: 600; color: var(--main); }
.container { max-width: 1400px; margin: 0 auto; padding: 0 24px; }
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 14px 32px; font-size: 15px; font-weight: 600; border-radius: 4px; border: 2px solid transparent; transition: all 0.2s; cursor: pointer; }
.btn-primary { background: var(--main); color: var(--white); border-color: var(--main); }
.btn-primary:hover { background: var(--main-dark); transform: translateY(-2px); }
.btn-white { background: var(--white); color: var(--black); }
.btn-white:hover { background: #f0f0f0; }
.section { padding: 120px 0; }
.section-gray { background: var(--bg); }
.section-dark { background: var(--dark-bg); color: var(--white); }
.section-header { text-align: center; margin-bottom: 64px; }
.label { font-size: 14px; font-weight: 600; color: var(--main); text-transform: uppercase; letter-spacing: 0.15em; margin-bottom: 14px; }
.section-header h2 { font-size: 48px; font-weight: 700; }
.section-desc { font-size: 19px; color: var(--gray); margin-top: 18px; }
#header { position: fixed; top: 0; left: 0; right: 0; height: var(--header-height); background: rgba(255,255,255,0.98); backdrop-filter: blur(10px); z-index: 1000; border-bottom: 1px solid rgba(0,0,0,0.06); transition: all 0.3s; }
#header.transparent { background: transparent; border-bottom-color: transparent; }
#header.transparent .logo { color: var(--white); }
#header.scrolled { background: rgba(255,255,255,0.98); box-shadow: var(--shadow-sm); }
.header-inner { max-width: 1400px; margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 26px; font-weight: 700; color: var(--main); }
footer { background: var(--black); color: var(--white); padding: 80px 0 48px; }
.footer-simple { display: flex; justify-content: space-between; margin-bottom: 48px; }
.footer-brand .footer-logo { font-size: 28px; font-weight: 700; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.8); }
.copyright { font-size: 13px; color: rgba(255,255,255,0.4); text-align: center; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.1); }
.page-hero { position: relative; height: 300px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--main), var(--main-dark)); margin-top: var(--header-height); }
.page-hero-content { text-align: center; color: var(--white); padding: 0 24px; }
.page-hero h1 { font-size: 42px; font-weight: 700; margin-bottom: 16px; }
.breadcrumb { display: flex; align-items: center; justify-content: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.7); }
.breadcrumb .current { color: var(--white); font-weight: 500; }
.cta-section { padding: 120px 24px; background: linear-gradient(135deg, var(--main), var(--main-dark)); }
.cta-content { text-align: center; color: var(--white); max-width: 700px; margin: 0 auto; }
.cta-content h2 { font-size: 40px; font-weight: 700; margin-bottom: 16px; }
.cta-content p { font-size: 18px; color: rgba(255,255,255,0.95); margin-bottom: 40px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.card { background: var(--white); border-radius: 8px; overflow: hidden; transition: all 0.3s; box-shadow: var(--shadow-sm); }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-body { padding: 28px; }
.card-title { font-size: 22px; font-weight: 600; margin-bottom: 10px; }
.card-text { font-size: 17px; color: var(--gray); }
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.text-center { text-align: center; }
.text-main { color: var(--main); }
.mt-4 { margin-top: 32px; }
.mb-4 { margin-bottom: 32px; }
.d-flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
@media (max-width: 1024px) {
    :root { --header-height: 70px; }
    .section { padding: 80px 0; }
    .section-header h2 { font-size: 32px; }
    .section-desc { font-size: 16px; }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    :root { --header-height: 64px; }
    .container { padding: 0 20px; }
    .section { padding: 60px 0; }
    .section-header { margin-bottom: 48px; }
    .section-header h2 { font-size: 26px; }
    .section-desc { font-size: 15px; }
    .label { font-size: 12px; letter-spacing: 0.12em; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 20px; }
    .page-hero { height: 200px; }
    .page-hero h1 { font-size: 26px; }
    .page-hero-content { padding: 0 20px; }
    .breadcrumb { font-size: 13px; }
    .cta-section { padding: 80px 20px; }
    .cta-content h2 { font-size: 24px; }
    .cta-content p { font-size: 15px; margin-bottom: 32px; }
    .footer-simple { flex-direction: column; gap: 24px; }
    .footer-brand p { font-size: 14px; }
    .copyright { font-size: 12px; }
    .btn { padding: 12px 24px; font-size: 14px; }
    .card-body { padding: 20px; }
    .card-title { font-size: 18px; }
    .card-text { font-size: 14px; }
}
@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .section { padding: 48px 0; }
    .section-header { margin-bottom: 36px; }
    .section-header h2 { font-size: 22px; }
    .section-desc { font-size: 14px; }
    .page-hero { height: 180px; }
    .page-hero h1 { font-size: 22px; }
    .breadcrumb { font-size: 12px; gap: 6px; }
    .cta-section { padding: 60px 16px; }
    .cta-content h2 { font-size: 20px; }
    .cta-content p { font-size: 14px; }
    .cta-buttons { flex-direction: column; gap: 12px; }
    .cta-buttons .btn { width: 100%; }
    .btn { padding: 14px 20px; }
    .card-body { padding: 16px; }
    .card-title { font-size: 16px; }
}
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.animate-fadeInUp { animation: fadeInUp 0.5s ease forwards; }
.scroll-animate { opacity: 0; transform: translateY(30px); transition: opacity 0.6s, transform 0.6s; }
.scroll-animate.visible { opacity: 1; transform: translateY(0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ========================================
   Hero Tagline (Main Page)
======================================== */
.hero-content .hero-tagline {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 24px;
}
@media (max-width: 768px) {
    .hero-content .hero-tagline {
        font-size: 12px;
        letter-spacing: 0.15em;
        margin-bottom: 16px;
    }
}

/* ========================================
   Company Introduction Section
======================================== */
.company-intro-section {
    padding: 120px 0;
    background: #fff;
}
.company-intro-section .section-label {
    color: var(--main);
}
.company-intro-section .section-title {
    color: #1a1a2e;
}
.company-intro-section .section-description {
    color: #64748b;
}
.intro-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}
.intro-stat-item {
    text-align: center;
    padding: 40px 24px;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.04) 0%, rgba(0, 200, 150, 0.03) 100%);
    border-radius: 20px;
    border: 1px solid rgba(0, 85, 255, 0.08);
    transition: all 0.4s ease;
}
.intro-stat-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 85, 255, 0.12);
    border-color: rgba(0, 85, 255, 0.15);
}
.intro-stat-value {
    display: block;
    font-size: 56px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--main), #00c896);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    margin-bottom: 8px;
}
.intro-stat-label {
    font-size: 15px;
    font-weight: 500;
    color: var(--gray);
}
@media (max-width: 1024px) {
    .intro-stats { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}
@media (max-width: 768px) {
    .company-intro-section { padding: 80px 0; }
    .intro-stats { gap: 16px; }
    .intro-stat-item { padding: 28px 16px; }
    .intro-stat-value { font-size: 40px; }
    .intro-stat-label { font-size: 13px; }
}
@media (max-width: 480px) {
    .intro-stats { grid-template-columns: 1fr; }
    .intro-stat-item { padding: 24px 20px; }
}

/* ========================================
   Core Differentiation Section
======================================== */
.differentiation-section {
    padding: 120px 0;
}
.differentiation-section .section-label {
    color: var(--main);
}
.differentiation-section .section-title {
    color: #1a1a2e;
}
.differentiation-section .section-description {
    color: #64748b;
}
.diff-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}
.diff-card {
    background: #fff;
    padding: 48px 36px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 4px 32px rgba(0, 85, 255, 0.08);
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
}
.diff-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0055ff, #00c896);
    transform: scaleX(0);
    transition: transform 0.5s ease;
}
.diff-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 85, 255, 0.15);
}
.diff-card:hover::before {
    transform: scaleX(1);
}
.diff-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.1) 0%, rgba(0, 200, 150, 0.08) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 28px;
    transition: all 0.4s ease;
}
.diff-card:hover .diff-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.15) 0%, rgba(0, 200, 150, 0.12) 100%);
}
.diff-icon svg {
    width: 36px;
    height: 36px;
    stroke: var(--main);
}
.diff-title {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 8px;
}
.diff-subtitle {
    font-size: 13px;
    font-weight: 600;
    color: var(--main);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
}
.diff-description {
    font-size: 16px;
    color: #64748b;
    line-height: 1.8;
}
.diff-note {
    text-align: center;
    font-size: 18px;
    color: #1a1a2e;
    padding: 32px 40px;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.06) 0%, rgba(0, 200, 150, 0.04) 100%);
    border-radius: 20px;
    border: 1px solid rgba(0, 85, 255, 0.1);
}
@media (max-width: 1024px) {
    .diff-grid { grid-template-columns: 1fr; gap: 24px; }
    .diff-card { padding: 36px 28px; }
}
@media (max-width: 768px) {
    .differentiation-section { padding: 80px 0; }
    .diff-title { font-size: 18px; }
    .diff-description { font-size: 14px; }
    .diff-note { font-size: 15px; padding: 24px 20px; }
}

/* ========================================
   Application Areas Section
======================================== */
.applications-section {
    padding: 120px 0;
}
.applications-section .section-label {
    color: var(--main);
}
.applications-section .section-title {
    color: #1a1a2e;
}
.applications-section .section-description {
    color: #64748b;
}
.app-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}
.app-item {
    background: #fff;
    padding: 40px 20px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 24px rgba(0, 85, 255, 0.08);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}
.app-item::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #0055ff, #00c896);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}
.app-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 85, 255, 0.15);
}
.app-item:hover::before {
    transform: scaleX(1);
}
.app-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.1) 0%, rgba(0, 200, 150, 0.08) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.4s ease;
}
.app-item:hover .app-icon {
    transform: scale(1.1);
}
.app-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--main);
}
.app-item span {
    font-size: 15px;
    font-weight: 600;
    color: #1a1a2e;
    line-height: 1.4;
}
.app-note {
    text-align: center;
    font-size: 18px;
    color: #1a1a2e;
    padding: 32px 40px;
    background: linear-gradient(135deg, rgba(0, 85, 255, 0.06) 0%, rgba(0, 200, 150, 0.04) 100%);
    border-radius: 20px;
    border: 1px solid rgba(0, 85, 255, 0.1);
}
@media (max-width: 1200px) {
    .app-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
    .applications-section { padding: 80px 0; }
    .app-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .app-item { padding: 28px 16px; }
    .app-item span { font-size: 13px; }
    .app-note { font-size: 15px; padding: 24px 20px; }
}
@media (max-width: 480px) {
    .app-grid { grid-template-columns: 1fr; }
}

/* ========================================
   Global Expansion Section
======================================== */
.global-section {
    padding: 120px 0;
    background: #fff;
}
.global-section .section-label {
    color: var(--main);
}
.global-section .section-title {
    color: #1a1a2e;
}
.global-section .section-description {
    color: #64748b;
}
.global-markets {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 48px;
}
.market-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 20px 40px;
    font-size: 20px;
    font-weight: 700;
    color: var(--main);
    background: #fff;
    border: 2px solid rgba(0, 85, 255, 0.2);
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 85, 255, 0.1);
}
.market-item:hover {
    background: linear-gradient(135deg, var(--main), #00c896);
    color: #fff;
    border-color: transparent;
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 85, 255, 0.25);
}
@media (max-width: 768px) {
    .global-section { padding: 80px 0; }
    .global-markets { gap: 12px; margin-top: 32px; }
    .market-item { padding: 14px 28px; font-size: 16px; }
}