@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:wght@400;600;700&family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

:root {
    --primary: hsl(147, 100%, 30%); /* Safe-Tek Green */
    --primary-hover: hsl(147, 100%, 25%);
    --primary-glow: hsla(147, 100%, 30%, 0.15);
    --secondary: hsl(220, 15%, 15%); /* Slate Dark */
    --accent: hsl(147, 100%, 45%);
    --bg-light: hsl(0, 0%, 100%);
    --bg-alt: hsl(210, 30%, 98%);
    --bg-dark: hsl(220, 15%, 12%);
    --bg-dark-card: hsl(220, 15%, 18%);
    --text-dark: hsl(220, 15%, 15%);
    --text-light: hsl(0, 0%, 95%);
    --text-muted: hsl(220, 10%, 50%);
    --border: hsl(220, 12%, 92%);
    --border-dark: hsl(220, 10%, 25%);
    --font-sans: 'Noto Sans KR', 'Inter Tight', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 8px 16px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.1);
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --header-height: 80px;
}

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

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

body {
    font-family: var(--font-sans);
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
    list-style: none;
}

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    border: none;
    outline: none;
}

button {
    cursor: pointer;
    background: none;
}

section {
    padding: 100px 0;
    position: relative;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography helper classes */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-tag {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    display: inline-block;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--secondary);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* Common buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-weight: 700;
    border-radius: 6px;
    transition: var(--transition-normal);
    gap: 8px;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-secondary {
    background-color: transparent;
    color: var(--secondary);
    border: 2px solid var(--secondary);
}

.btn-secondary:hover {
    background-color: var(--secondary);
    color: white;
    transform: translateY(-2px);
}

.btn-outline-light {
    background-color: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-light:hover {
    background-color: white;
    color: var(--secondary);
    border-color: white;
    transform: translateY(-2px);
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-normal);
    border-bottom: 1px solid var(--border);
}

header.scrolled {
    height: 70px;
    background-color: rgba(255, 255, 255, 0.98);
}

header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo img {
    height: 40px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-dark);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover {
    color: var(--primary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    height: 24px;
    z-index: 1001;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--secondary);
    border-radius: 2px;
    transition: var(--transition-normal);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--bg-light);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    padding: 100px 40px 40px 40px;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mobile-nav.active {
    right: 0;
}

.mobile-nav .nav-link {
    font-size: 1.25rem;
    font-weight: 700;
}

.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Hero Section */
.hero {
    height: 100vh;
    min-height: 700px;
    background-color: var(--secondary);
    position: relative;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-slider-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
    opacity: 0.6; /* Brighter background image visibility */
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(20, 24, 33, 0.75) 40%, rgba(20, 24, 33, 0.2) 100%);
    z-index: 2;
}

.hero .container {
    position: relative;
    z-index: 3;
}

.hero-content {
    max-width: 700px;
}

.hero-tag {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.25;
    color: white;
    margin-bottom: 24px;
    animation: fadeInUp 1s ease forwards;
}

.hero-desc {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    line-height: 1.6;
    animation: fadeInUp 1.2s ease forwards;
}

.hero-desc span {
    display: block;
    font-size: 1rem;
    color: var(--primary-light);
    margin-top: 12px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 1.4s ease forwards;
}

.hero-marquee-container {
    position: absolute;
    bottom: 30px;
    left: 0;
    width: 100%;
    z-index: 3;
    background-color: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(5px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 0;
    overflow: hidden;
}

.hero-marquee-wrapper {
    display: flex;
    width: max-content;
    animation: marquee 25s linear infinite;
}

.hero-marquee-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 40px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.hero-marquee-item img {
    height: 35px;
    width: auto;
    object-fit: contain;
    filter: grayscale(1) brightness(2);
    opacity: 0.8;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Section: 7대 안전장치 적용 품목 Grid */
.safety-devices {
    background-color: var(--bg-light);
}

.device-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 30px;
}

.device-card {
    grid-column: span 4;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    transition: var(--transition-normal);
}

.device-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.device-card.large-card {
    grid-column: span 6;
}

.device-img-wrapper {
    position: relative;
    height: 240px;
    overflow: hidden;
    background-color: var(--bg-alt);
}

.device-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.device-card:hover .device-img-wrapper img {
    transform: scale(1.06);
}

.device-info {
    padding: 28px;
}

.device-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.device-title-sub {
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 500;
}

.device-text {
    font-size: 0.975rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 16px;
}

.device-badge {
    display: inline-block;
    padding: 4px 10px;
    background-color: var(--primary-light);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 4px;
    margin-top: 8px;
}

/* Section: Repair/Maintenance (Service 2) */
.services-maintenance {
    background-color: var(--bg-alt);
}

.services-intro-layout {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 60px;
}

.services-intro-layout .section-header {
    text-align: left;
    margin: 0;
    max-width: 800px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.service-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.service-img {
    height: 180px;
    overflow: hidden;
}

.service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.service-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex-grow: 1;
}

.service-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 12px;
}

.service-tag {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--primary);
    background-color: var(--primary-light);
    padding: 4px 8px;
    border-radius: 4px;
    align-self: flex-start;
    margin-top: 10px;
}

/* Maintenance Cards */
.maintenance-container {
    background-color: var(--secondary);
    border-radius: 16px;
    padding: 48px;
    color: white;
    box-shadow: var(--shadow-lg);
}

.maintenance-header {
    margin-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 24px;
}

.maintenance-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.maintenance-header p {
    color: rgba(255, 255, 255, 0.7);
}

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

.maintenance-item {
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.maintenance-item:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: var(--accent);
    transform: translateY(-3px);
}

.maintenance-item-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 12px;
}

.maintenance-item-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* CTA Banner Section */
.cta-banner {
    background: linear-gradient(135deg, var(--secondary) 0%, hsl(220, 15%, 8%) 100%);
    color: white;
    text-align: center;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 153, 69, 0.15) 0%, transparent 60%);
    z-index: 1;
}

.cta-banner .container {
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 36px;
}

/* Video Section */
.video-section {
    background-color: var(--bg-light);
    padding: 80px 0;
}

.video-container {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    aspect-ratio: 16/9;
    background-color: #000;
}

.video-thumbnail-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 3;
    transition: var(--transition-normal);
}

.video-thumbnail-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-thumbnail-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    transition: var(--transition-fast);
}

.video-thumbnail-wrapper:hover::after {
    background-color: rgba(0, 0, 0, 0.45);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background-color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    z-index: 4;
    transition: var(--transition-normal);
    box-shadow: 0 0 30px rgba(0, 153, 69, 0.5);
}

.play-btn svg {
    width: 30px;
    height: 30px;
    fill: currentColor;
    margin-left: 4px;
}

.video-thumbnail-wrapper:hover .play-btn {
    transform: translate(-50%, -50%) scale(1.1);
    background-color: var(--accent);
    box-shadow: 0 0 40px rgba(0, 153, 69, 0.8);
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Process Section */
.process-section {
    background-color: var(--bg-alt);
}

.process-timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-top: 40px;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 100px;
    left: 10%;
    width: 80%;
    height: 4px;
    background-color: var(--border);
    z-index: 1;
}

.process-step {
    width: 28%;
    position: relative;
    z-index: 2;
    text-align: center;
    background-color: var(--bg-alt);
    padding: 0 10px;
}

.process-img-box {
    width: 200px;
    height: 200px;
    margin: 0 auto 28px auto;
    border-radius: 50%;
    overflow: hidden;
    border: 8px solid white;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.process-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.process-step:hover .process-img-box {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.process-step:hover .process-img-box img {
    transform: scale(1.08);
}

.step-num {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--primary);
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    padding: 6px 14px;
    border-radius: 30px;
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
    z-index: 10;
    transition: var(--transition-normal);
}

.process-step:hover .step-num {
    transform: translate(-50%, calc(-50% - 5px));
}

.process-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 12px;
}

.process-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* FAQ Section */
.faq-section {
    background-color: var(--bg-light);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-column {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background-color: white;
    border-radius: 10px;
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.faq-question-btn {
    width: 100%;
    padding: 24px;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 700;
    color: var(--secondary);
    font-size: 1.05rem;
    transition: var(--transition-fast);
    gap: 16px;
}

.faq-question-btn:hover {
    color: var(--primary);
}

.faq-icon-arrow {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal) ease-out;
    background-color: var(--bg-alt);
    border-top: 0 solid var(--border);
}

.faq-item.active .faq-answer {
    border-top: 1px solid var(--border);
}

.faq-answer-content {
    padding: 24px;
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Contact Section */
.contact-section {
    background-color: var(--bg-alt);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    background-color: white;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border);
}

.contact-info-panel {
    background: linear-gradient(135deg, var(--secondary) 0%, hsl(220, 15%, 8%) 100%);
    color: white;
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.contact-info-top h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: white;
}

.contact-info-top p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-detail-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-detail-icon {
    width: 24px;
    height: 24px;
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-detail-text h5 {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.contact-detail-text p {
    font-size: 1.1rem;
    font-weight: 500;
    color: white;
}

.contact-socials {
    display: flex;
    gap: 16px;
    margin-top: 40px;
}

.contact-social-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.contact-social-btn:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

.contact-form-panel {
    padding: 60px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--secondary);
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background-color: var(--bg-alt);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-control:focus {
    background-color: white;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

textarea.form-control {
    resize: none;
    min-height: 120px;
}

/* Footer Section */
footer {
    background-color: var(--secondary);
    color: rgba(255, 255, 255, 0.6);
    padding: 60px 0 30px 0;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 40px;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    height: 45px;
    margin-bottom: 24px;
    filter: brightness(0) invert(1);
    opacity: 0.9;
}

.footer-desc {
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-links-grid {
    display: flex;
    gap: 80px;
}

.footer-links-col h5 {
    color: white;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.copyright {
    font-size: 0.85rem;
}

/* Responsive Breakpoints */
@media (max-width: 1199px) {
    .device-card {
        grid-column: span 6;
    }
}

@media (max-width: 991px) {
    section {
        padding: 80px 0;
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .maintenance-list {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .process-timeline {
        flex-direction: column;
        gap: 50px;
        align-items: center;
    }
    
    .process-timeline::before {
        display: none;
    }
    
    .process-step {
        width: 80%;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
    }
    
    .contact-info-panel {
        padding: 40px;
    }
    
    .contact-form-panel {
        padding: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .header-actions {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-desc {
        font-size: 1.1rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .device-card, .device-card.large-card {
        grid-column: span 12;
    }
    
    .services-intro-layout {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .maintenance-container {
        padding: 30px;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links-grid {
        width: 100%;
        justify-content: space-between;
        gap: 20px;
    }
}

/* Floating Quick Menu */
.floating-quick-menu {
    position: fixed;
    right: 24px;
    bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.floating-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: var(--transition-normal);
    color: white;
}

.floating-btn:hover {
    transform: scale(1.1) translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.floating-btn.naver-blog {
    background-color: #03c75a;
}

.floating-btn.phone-call {
    background-color: #e62e2e;
}

.floating-btn.kakao-talk {
    background-color: #fef01b;
    color: #3c1e1e;
}

@media (max-width: 768px) {
    .floating-quick-menu {
        right: 16px;
        bottom: 16px;
        gap: 10px;
    }
    
    .floating-btn {
        width: 48px;
        height: 48px;
    }
}