/* =============================================
   Hero Section
   ============================================= */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: #000;
}

.hero-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: url('../images/신영메트로시티-large.jpeg') center/cover no-repeat;
    transform: scale(1.1);
    animation: heroZoom 15s ease-out forwards;
}

.hero-bg-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(
        135deg,
        rgba(10, 15, 30, 0.85) 0%,
        rgba(10, 15, 30, 0.5) 50%,
        rgba(10, 15, 30, 0.7) 100%
    );
}

@keyframes heroZoom {
    to { transform: scale(1); }
}

.hero-particles {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-badge span {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.5px;
}

.hero-title {
    margin-bottom: 24px;
}

.hero-title .line {
    display: block;
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    font-weight: 800;
    color: var(--text-white);
    letter-spacing: -2px;
    line-height: 1.05;
}

.hero-title em {
    font-style: normal;
    color: transparent;
    -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.6);
    font-weight: 300;
    transition: var(--transition);
}

.hero-title:hover em {
    color: var(--accent);
    -webkit-text-stroke: 0;
}

.hero-subtitle {
    font-size: clamp(0.95rem, 2vw, 1.2rem);
    color: rgba(255, 255, 255, 0.65);
    font-weight: 300;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollLineAnim 2s infinite;
}

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

.scroll-indicator span {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* =============================================
   Stats Bar
   ============================================= */
.stats-bar {
    background: var(--bg-dark);
    padding: 60px 0;
    position: relative;
}

.stats-bar::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--accent), transparent);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 12px;
}

.stat-number .counter {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--accent);
    font-weight: 600;
}

.stat-divider {
    width: 30px;
    height: 2px;
    background: rgba(255, 255, 255, 0.15);
    margin: 0 auto 12px;
}

.stat-item p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

/* =============================================
   About Section
   ============================================= */
.about {
    padding: 120px 0;
    background: var(--bg-body);
    overflow: hidden;
}

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

.main-copy {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 24px;
    word-break: keep-all;
    line-height: 1.3;
}

.sub-copy {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 30px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
}

.feature {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.feature-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    border-radius: 12px;
    color: var(--accent);
    font-size: 1.1rem;
}

.feature h4 {
    font-size: 0.95rem;
    margin-bottom: 2px;
}

.feature p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* About Visual */
.about-visual {
    position: relative;
    height: 550px;
}

.img-box {
    overflow: hidden;
    border-radius: var(--radius);
}

.img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.img-box:hover img {
    transform: scale(1.05);
}

.main-img {
    width: 85%;
    height: 420px;
    position: relative;
    z-index: 1;
}

.sub-img {
    width: 55%;
    height: 250px;
    position: absolute;
    bottom: 0;
    right: 0;
    z-index: 2;
    border: 5px solid var(--bg-body);
}

.about-badge {
    position: absolute;
    top: 30px;
    right: 40px;
    width: 120px;
    height: 120px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 3;
    box-shadow: 0 10px 30px rgba(200, 164, 94, 0.4);
}

.badge-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    line-height: 1;
}

.badge-text {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    line-height: 1.3;
    margin-top: 4px;
}

/* =============================================
   Business Section
   ============================================= */
.business {
    padding: 120px 0;
    background: var(--bg-gray);
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.biz-card {
    position: relative;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.biz-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.biz-number {
    position: absolute;
    top: 20px;
    left: 24px;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    z-index: 2;
    background: white;
    padding: 4px 12px;
    border-radius: 20px;
}

.biz-img {
    height: 240px;
    overflow: hidden;
}

.biz-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.biz-card:hover .biz-img img {
    transform: scale(1.1);
}

.biz-content {
    padding: 28px;
}

.biz-content h3 {
    font-size: 1.4rem;
    margin-bottom: 4px;
}

.biz-en {
    font-family: var(--font-heading);
    color: var(--text-light);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.biz-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.biz-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent);
    transition: var(--transition-fast);
}

.biz-link:hover {
    gap: 12px;
}

/* =============================================
   Portfolio Section
   ============================================= */
.portfolio {
    padding: 120px 0;
    background: var(--bg-body);
}

.portfolio-filters {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-gray);
    transition: var(--transition-fast);
    cursor: pointer;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--bg-dark);
    color: white;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.pf-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4 / 3;
}

.pf-item.hidden {
    display: none;
}

.pf-img {
    width: 100%;
    height: 100%;
}

.pf-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.pf-item:hover .pf-img img {
    transform: scale(1.08);
}

.pf-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(to top, rgba(10, 15, 30, 0.9) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding: 24px;
    opacity: 0;
    transition: var(--transition);
}

.pf-item:hover .pf-overlay {
    opacity: 1;
}

.pf-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pf-info h3 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.pf-info p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

.pf-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 50%;
    color: var(--text-main);
    align-self: flex-end;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.pf-link:hover {
    background: var(--accent);
    color: white;
}

/* =============================================
   Timeline Section
   ============================================= */
.timeline-section {
    padding: 120px 0;
    background: var(--bg-gray);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--bg-gray-2);
}

.timeline-item {
    position: relative;
    padding-bottom: 50px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -36px;
    top: 5px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--bg-gray);
    box-shadow: 0 0 0 3px var(--accent);
    z-index: 1;
}

.timeline-content {
    background: white;
    padding: 24px 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-lg);
}

.timeline-year {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin: 8px 0 6px;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* =============================================
   Safety & Health Section
   ============================================= */
.safety {
    background: var(--bg-dark);
    padding: 120px 0;
    overflow: hidden;
}

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

.safety-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: white;
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.3;
}

.safety-desc {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 40px;
}

.safety-policies {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.safety-policy {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    padding: 20px 24px;
    transition: var(--transition);
}

.safety-policy:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    transform: translateX(8px);
}

.safety-policy-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    border-radius: 50%;
    color: var(--accent);
    font-size: 1rem;
}

.safety-policy h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 4px;
}

.safety-policy p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Safety Visual */
.safety-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}

.safety-circle {
    position: relative;
    width: 220px;
    height: 220px;
}

.safety-circle svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.circle-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 6;
}

.circle-progress {
    fill: none;
    stroke: var(--accent);
    stroke-width: 6;
    stroke-linecap: round;
    stroke-dasharray: 534;
    stroke-dashoffset: 534;
    transition: stroke-dashoffset 2s ease;
}

.circle-text {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.circle-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    line-height: 1;
}

.circle-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.safety-stats {
    display: flex;
    gap: 40px;
}

.safety-stat {
    text-align: center;
}

.safety-stat-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
}

.safety-stat-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

/* =============================================
   Organization Section
   ============================================= */
.organization {
    padding: 120px 0;
    background: var(--bg-body);
}

.org-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.org-card {
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition);
}

.org-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.org-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.org-card-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    border-radius: 12px;
    color: var(--accent);
    font-size: 1.2rem;
}

.org-card-header h3 {
    font-size: 1.1rem;
    margin-bottom: 2px;
}

.org-card-header p {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
}

.org-members {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.org-member {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: white;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.org-member i {
    color: var(--accent);
    font-size: 0.8rem;
}

.org-card-full {
    grid-column: 1 / -1;
}

/* =============================================
   Contact Section
   ============================================= */
.contact {
    padding: 120px 0;
    background: var(--bg-gray);
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-info-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-info-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.contact-card-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-light);
    border-radius: 50%;
    color: var(--accent);
    font-size: 1.4rem;
    margin: 0 auto 20px;
}

.contact-info-card h3 {
    font-size: 0.8rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
}

.contact-info-card p {
    color: var(--text-main);
    font-weight: 500;
    font-size: 1.05rem;
    line-height: 1.6;
}