/* ===== Reset & Variables ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors - Modern Teal/Cyan Theme */
    --primary: #06b6d4;
    --primary-dark: #0891b2;
    --primary-light: #22d3ee;
    --secondary: #14b8a6;
    --accent: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    
    /* Neutrals */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #06b6d4 0%, #14b8a6 100%);
    --gradient-secondary: linear-gradient(135deg, #22d3ee 0%, #8b5cf6 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: #ffffff;
    overflow-x: hidden;
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.logo img {
    height: 45px;
    width: 45px;
    border-radius: 50%;
    object-fit: cover;
    transition: transform 0.3s ease;
    filter: hue-rotate(180deg) saturate(1.5) brightness(1.3);
}

.logo img:hover {
    transform: scale(1.05);
    filter: hue-rotate(180deg) saturate(1.5) brightness(1.4);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    margin: 0;
}

.nav-menu a {
    color: var(--gray-700);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: color 0.3s ease;
}

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

.nav-actions {
    display: flex;
    gap: 12px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--gray-700);
    cursor: pointer;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(6, 182, 212, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5);
}

.btn-hero-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 16px 36px;
    font-size: 17px;
    border-radius: 14px;
    box-shadow: 0 8px 20px rgba(6, 182, 212, 0.4);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(6, 182, 212, 0.5);
}

.btn-hero-secondary {
    background: white;
    color: var(--primary);
    padding: 16px 36px;
    font-size: 17px;
    border-radius: 14px;
    border: 2px solid var(--gray-200);
}

.btn-hero-secondary:hover {
    border-color: var(--primary);
    background: var(--gray-50);
}

/* ===== Hero Section ===== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, #ecfeff 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(20, 184, 166, 0.08) 0%, transparent 50%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    grid-template-rows: auto auto;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    grid-column: 1;
    grid-row: 1;
}

.hero-visual {
    grid-column: 2;
    grid-row: 1 / 3;
}

.hero-stats {
    grid-column: 1;
    grid-row: 2;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 100%;
    padding-right: 20px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #1e3a4a;
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    color: var(--gray-900);
    letter-spacing: -0.02em;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 20px;
    color: var(--gray-600);
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat-item {
    flex: 1;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--gray-600);
}



/* ===== Section Common ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    background: var(--gray-100);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 48px;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Features ===== */
.features {
    padding: 120px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 40px 32px;
    border-radius: 24px;
    border: 2px solid var(--gray-100);
    transition: all 0.4s ease;
    position: relative;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--primary);
}

.feature-card.featured {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, rgba(20, 184, 166, 0.05) 100%);
    border-color: var(--primary);
}

.feature-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    background: var(--gradient-primary);
    color: white;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.feature-number {
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-icon i {
    font-size: 28px;
    color: white;
}

.feature-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.feature-description {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 24px;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--gray-700);
    margin-bottom: 12px;
}

.feature-list i {
    color: var(--success);
    font-size: 16px;
}

/* ===== Benefits ===== */
.benefits {
    padding: 120px 0;
    background: var(--gray-50);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.benefit-card {
    background: white;
    padding: 40px 32px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-100);
}

.benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.benefit-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-icon i {
    font-size: 28px;
    color: white;
}

.benefit-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.benefit-card p {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ===== CTA ===== */
.cta-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #06b6d4 0%, #14b8a6 100%);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 48px;
    font-weight: 800;
    color: white;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.btn-cta {
    background: white;
    color: var(--primary);
    padding: 18px 40px;
    font-size: 17px;
    border-radius: 14px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
}

/* ===== Services Section ===== */
.services-section {
    padding: 100px 0;
    background: #ffffff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.service-card {
    background: white;
    border: 2px solid var(--gray-100);
    border-radius: 20px;
    padding: 40px 32px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(6, 182, 212, 0.15);
}

.service-card.featured {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, rgba(20, 184, 166, 0.05) 100%);
    border-color: var(--primary);
    border-width: 3px;
}

.service-card.featured::before {
    transform: scaleX(1);
}

.service-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    background: var(--gradient-primary);
    color: white;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.service-icon-wrapper {
    margin-bottom: 24px;
}

.service-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(20, 184, 166, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: var(--gradient-primary);
    transform: scale(1.1) rotate(5deg);
}

.service-icon i {
    font-size: 28px;
    color: var(--primary);
    transition: all 0.3s ease;
}

.service-card:hover .service-icon i {
    color: white;
}

.service-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
    line-height: 1.3;
}

.service-description {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--gray-700);
    margin-bottom: 10px;
}

.service-features li:last-child {
    margin-bottom: 0;
}

.service-features i {
    color: var(--primary);
    font-size: 14px;
    flex-shrink: 0;
}

/* ===== Footer ===== */
.footer {
    padding: 60px 0 30px;
    background: linear-gradient(135deg, #1e3a4a 0%, #2d4f5e 100%);
    color: rgba(255, 255, 255, 0.8);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.footer-logo {
    height: 40px;
    width: 40px;
    border-radius: 50%;
    margin-bottom: 16px;
    filter: hue-rotate(180deg) saturate(1.5) brightness(1.3);
}

.footer-brand p {
    font-size: 15px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.7);
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-column ul a:hover {
    color: #22d3ee;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== Responsive ===== */
/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-right {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 0;
}

.hero-image-container {
    position: relative;
    width: 100%;
    max-width: 900px;
    animation: fadeInRight 1s ease;
    overflow: visible;
    z-index: 0;
}

.hero-dashboard-image {
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 25px 50px rgba(6, 182, 212, 0.15));
    transition: all 0.5s ease;
    transform: scale(1.15);
    transform-origin: center center;
    margin-left: 0;
}

.hero-dashboard-image:hover {
    transform: scale(1.20) translateY(-5px);
    filter: drop-shadow(0 35px 70px rgba(6, 182, 212, 0.25));
}

/* Floating effect */
@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Subtle floating animation */
.hero-image-container::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.08) 0%, transparent 70%);
    border-radius: 24px;
    z-index: -1;
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .hero-image-container {
        max-width: 650px;
        margin: 0 auto;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero {
        padding: 100px 0 40px;
    }
    
    .hero .container {
        display: flex;
        flex-direction: column;
        gap: 0;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 3;
        margin-bottom: 24px;
    }
    
    .hero-stats {
        order: 2;
        margin-bottom: 32px;
        flex-direction: row;
        gap: 48px;
        justify-content: space-between;
    }
    
    .hero-title {
        font-size: 36px;
        line-height: 1.3;
        margin-bottom: 16px;
    }
    
    .hero-description {
        font-size: 17px;
        line-height: 1.7;
        margin-bottom: 24px;
    }
    
    .hero-description br {
        display: none;
    }
    
    .hero-buttons {
        flex-direction: row;
        gap: 12px;
        margin-bottom: 24px;
    }
    
    .hero-buttons .btn {
        padding: 12px 20px;
        font-size: 14px;
        flex: 1;
        justify-content: center;
    }
    
    .stat-item {
        flex: 1;
        text-align: center;
    }
    
    .stat-number {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 11px;
        white-space: nowrap;
    }
    
    .hero-image-container {
        max-width: 100%;
    }
    
    .hero-dashboard-image {
        transform: scale(1);
        margin-left: 0;
    }
    
    .hero-image-container::before {
        display: none;
    }
    
    .section-title {
        font-size: 30px;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        gap: 40px;
    }
    
    .cta-title {
        font-size: 36px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: 32px 24px;
    }
}