/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Color Variables */
:root {
    --primary-color: #1E3A8A;
    --secondary-color: #FBBF24;
    --accent-color: #F97316;
    --text-dark: #192A56;
    --text-light: #6B7280;
    --bg-light: #F3F4F6;
    --white: #FFFFFF;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    font-weight: 900;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #764ba2, #667eea);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0);
    
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
    font-weight: 900;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #667eea;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section - Space Theme */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 25%, #0f3460 50%, #533483 75%, #7209b7 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Space Background */
.space-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* Animated Stars */
.stars {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #eee, transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 90px 40px, #fff, transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(255,255,255,0.6), transparent),
        radial-gradient(2px 2px at 160px 30px, #fff, transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: twinkle 4s ease-in-out infinite alternate;
}

@keyframes twinkle {
    0% { opacity: 0.3; }
    100% { opacity: 1; }
}

/* Nebula Effect */
.nebula {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(ellipse at 40% 80%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    animation: nebulaFloat 20s ease-in-out infinite;
}

@keyframes nebulaFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(1deg); }
    66% { transform: translate(-20px, 20px) rotate(-1deg); }
}

/* Floating Particles */
.floating-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-particles::before,
.floating-particles::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.floating-particles::before {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-particles::after {
    top: 60%;
    right: 15%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) scale(1); opacity: 0.8; }
    50% { transform: translateY(-20px) scale(1.2); opacity: 1; }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
    min-height: 100vh;
}

.hero-content {
    color: var(--white);
    animation: none !important;
    text-align: center;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

/* Allow animations for hero content */
.hero-content * {
    /* Animations enabled */
}

/* Enable typing animation */
.typing-text {
    border-right: 3px solid var(--secondary-color);
    animation: blink 1s infinite;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1.1;
    white-space: nowrap;
    text-align: center;
}

.typing-text {
    border-right: 3px solid var(--secondary-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { border-color: var(--secondary-color); }
    51%, 100% { border-color: transparent; }
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    text-align: center;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
}

.highlight {
    color: var(--secondary-color);
    font-weight: 700;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    justify-content: center;
    align-items: center;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--secondary-color);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
}

/* Cosmic Button */
.btn-cosmic {
    background: linear-gradient(135deg, #7209b7, #3f51b563, #b19cd9);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(114, 9, 183, 0.3);
}

.btn-cosmic:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(114, 9, 183, 0.5);
    border-color: rgba(255, 255, 255, 0.6);
}

.btn-cosmic::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-cosmic:hover::before {
    left: 100%;
}

/* Character Section */
.character-section {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

/* Enhanced Astronaut Rabbit */
.astronaut-rabbit {
    position: relative;
    animation: rabbitFloat 3s ease-in-out infinite;
    width: 300px;
    height: 400px;
}

@keyframes rabbitFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

.rabbit-body {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Enhanced Helmet */
.helmet {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 140px;
    height: 140px;
    background: linear-gradient(135deg, #1e3a8a, #3b82f6, #60a5fa);
    border-radius: 50%;
    border: 4px solid rgba(255, 255, 255, 0.4);
    z-index: 10;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.visor {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 70px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(2px);
}

.helmet-reflection {
    position: absolute;
    top: 25px;
    left: 20px;
    width: 30px;
    height: 20px;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.3), transparent);
    border-radius: 50%;
    animation: reflection 3s ease-in-out infinite;
}

@keyframes reflection {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.7; }
}

/* Enhanced Rabbit Face */
.rabbit-face {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 8;
}

.eyes {
    display: flex;
    gap: 25px;
    justify-content: center;
    margin-bottom: 15px;
}

.eye {
    width: 12px;
    height: 12px;
    background: #000;
    border-radius: 50%;
    animation: blink 4s infinite;
    position: relative;
}

.eye::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 3px;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
}

@keyframes blink {
    0%, 90%, 100% { transform: scaleY(1); }
    95% { transform: scaleY(0.1); }
}

.nose {
    width: 6px;
    height: 6px;
    background: #ff69b4;
    border-radius: 50%;
    margin: 0 auto 8px;
    animation: noseWiggle 2s ease-in-out infinite;
}

@keyframes noseWiggle {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.mouth {
    width: 25px;
    height: 15px;
    border: 3px solid #000;
    border-top: none;
    border-radius: 0 0 25px 25px;
    margin: 0 auto;
    position: relative;
    animation: mouthMove 3s ease-in-out infinite;
}

@keyframes mouthMove {
    0%, 100% { transform: scaleX(1); }
    50% { transform: scaleX(1.1); }
}

.tongue {
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 6px;
    background: #ff69b4;
    border-radius: 0 0 8px 8px;
    animation: tongueMove 2s ease-in-out infinite;
}

@keyframes tongueMove {
    0%, 100% { transform: translateX(-50%) scaleY(1); }
    50% { transform: translateX(-50%) scaleY(1.2); }
}

/* Whiskers */
.whiskers {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 20px;
}

.whisker {
    position: absolute;
    width: 20px;
    height: 2px;
    background: #000;
    border-radius: 1px;
    animation: whiskerMove 2s ease-in-out infinite;
}

.whisker.left-1 { top: 5px; left: 0; transform: rotate(-10deg); }
.whisker.left-2 { top: 15px; left: 0; transform: rotate(-5deg); }
.whisker.right-1 { top: 5px; right: 0; transform: rotate(10deg); }
.whisker.right-2 { top: 15px; right: 0; transform: rotate(5deg); }

@keyframes whiskerMove {
    0%, 100% { transform: rotate(var(--rotation, 0deg)) scaleX(1); }
    50% { transform: rotate(var(--rotation, 0deg)) scaleX(1.1); }
}

/* Enhanced Rabbit Ears */
.rabbit-ears {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
}

.ear {
    position: absolute;
    width: 25px;
    height: 80px;
    background: linear-gradient(135deg, #dda0dd, #e6e6fa);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    border: 3px solid rgba(255, 255, 255, 0.4);
    animation: earWiggle 3s ease-in-out infinite;
}

.ear.left {
    left: -20px;
    transform: rotate(-15deg);
    animation-delay: 0s;
}

.ear.right {
    right: -20px;
    transform: rotate(15deg);
    animation-delay: 1.5s;
}

@keyframes earWiggle {
    0%, 100% { transform: rotate(var(--rotation, 0deg)); }
    50% { transform: rotate(calc(var(--rotation, 0deg) + 5deg)); }
}

.inner-ear {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 15px;
    height: 50px;
    background: linear-gradient(135deg, #ff69b4, #ffb6c1);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
}

/* Arms */
.arms {
    position: absolute;
    top: 120px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 60px;
    z-index: 6;
}

.arm {
    position: absolute;
    width: 20px;
    height: 50px;
    background: linear-gradient(135deg, #7209b7, #a663cc);
    border-radius: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.arm.left {
    left: 20px;
    transform: rotate(-45deg);
    animation: armWave 2s ease-in-out infinite;
}

.arm.right {
    right: 20px;
    transform: rotate(45deg);
    animation: armWave 2s ease-in-out infinite 1s;
}

@keyframes armWave {
    0%, 100% { transform: rotate(var(--rotation, 0deg)); }
    50% { transform: rotate(calc(var(--rotation, 0deg) + 20deg)); }
}

/* Legs */
.legs {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 40px;
    z-index: 4;
}

.leg {
    position: absolute;
    width: 18px;
    height: 35px;
    background: linear-gradient(135deg, #7209b7, #a663cc);
    border-radius: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    animation: legBounce 2s ease-in-out infinite;
}

.leg.left {
    left: 20px;
    animation-delay: 0s;
}

.leg.right {
    right: 20px;
    animation-delay: 1s;
}

@keyframes legBounce {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

/* NVIEW Logo on Suit */
.suit-logo {
    position: absolute;
    top: 150px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 7;
    text-align: center;
}

.logo-n {
    font-size: 2rem;
    font-weight: 900;
    color: #3b82f6;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: logoGlow 3s ease-in-out infinite;
}

.logo-text {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 2px;
    margin-top: -5px;
}

@keyframes logoGlow {
    0%, 100% { text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3); }
    50% { text-shadow: 2px 2px 8px rgba(59, 130, 246, 0.6); }
}

/* Jetpack */
.jetpack {
    position: absolute;
    bottom: 60px;
    right: 20px;
    z-index: 3;
}

.jetpack-body {
    width: 30px;
    height: 40px;
    background: linear-gradient(135deg, #1e3a8a, #3b82f6);
    border-radius: 15px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
}

.jetpack-exhaust {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 30px;
}

.flame {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    animation: flameFlicker 0.5s ease-in-out infinite;
}

.flame-1 {
    width: 8px;
    height: 15px;
    background: linear-gradient(180deg, #ff6b35, #f7931e);
    animation-delay: 0s;
}

.flame-2 {
    width: 6px;
    height: 12px;
    background: linear-gradient(180deg, #ffd700, #ff6b35);
    animation-delay: 0.2s;
}

.flame-3 {
    width: 4px;
    height: 8px;
    background: linear-gradient(180deg, #ffff00, #ffd700);
    animation-delay: 0.4s;
}

@keyframes flameFlicker {
    0%, 100% { transform: translateX(-50%) scaleY(1) scaleX(1); }
    25% { transform: translateX(-50%) scaleY(1.2) scaleX(0.8); }
    50% { transform: translateX(-50%) scaleY(0.8) scaleX(1.2); }
    75% { transform: translateX(-50%) scaleY(1.1) scaleX(0.9); }
}

/* Multiple Sparkles */
.sparkles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.sparkle {
    position: absolute;
    width: 15px;
    height: 15px;
    background: #ffd700;
    clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
    animation: sparkleFloat 3s ease-in-out infinite;
}

.sparkle-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.sparkle-2 {
    top: 60%;
    right: 15%;
    animation-delay: 1s;
}

.sparkle-3 {
    bottom: 30%;
    left: 20%;
    animation-delay: 2s;
}

@keyframes sparkleFloat {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.6; }
    50% { transform: scale(1.3) rotate(180deg); opacity: 1; }
}

/* Shooting Stars */
.shooting-stars {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.shooting-star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #fff;
    border-radius: 50%;
    animation: shootingStar 4s linear infinite;
}

.shooting-star::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 20px;
    height: 1px;
    background: linear-gradient(90deg, #fff, transparent);
    transform: rotate(45deg);
    transform-origin: left center;
}

.star-1 {
    top: 20%;
    left: 0%;
    animation-delay: 0s;
}

.star-2 {
    top: 40%;
    left: 0%;
    animation-delay: 2s;
}

.star-3 {
    top: 70%;
    left: 0%;
    animation-delay: 4s;
}

@keyframes shootingStar {
    0% { transform: translateX(0) translateY(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateX(300px) translateY(100px); opacity: 0; }
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-graphic {
    position: relative;
    width: 450px;
    height: 450px;
    margin: 0 auto;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    padding: 20px;
    color: var(--white);
    text-align: center;
    animation: float 6s ease-in-out infinite;
    width: 120px;
    height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.floating-card i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 8px;
    display: block;
}

.floating-card span {
    font-size: 0.9rem;
    font-weight: 500;
}

.card-1 {
    top: 10%;
    left: 10%;
    animation: float 4s ease-in-out infinite;
    animation-delay: 0s;
}

.card-2 {
    top: 10%;
    right: 10%;
    animation: float2 5s ease-in-out infinite;
    animation-delay: 1s;
}

.card-3 {
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    animation: float3 6s ease-in-out infinite;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}

@keyframes float2 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-8px) rotate(-1deg); }
}

@keyframes float3 {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(0.5deg); }
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Problem Section */
.problem {
    background: var(--bg-light);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.problem-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.problem-item:hover {
    transform: translateY(-5px);
}

.problem-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #FF6B6B, #FF8E8E);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.problem-icon i {
    font-size: 2rem;
    color: var(--white);
}

.problem-item h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

/* Solution Section */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.solution-item {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

.solution-item:hover {
    transform: translateY(-5px);
}

.solution-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #a663ccd6, #3B82F6);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.solution-icon i {
    font-size: 2rem;
    color: var(--white);
}

.solution-item h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.solution-features {
    list-style: none;
    margin-top: 1rem;
}

.solution-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Why NVIEW Section */
.why-nview {
    background: var(--bg-light);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.why-item {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.why-item:hover {
    transform: translateY(-5px);
}

.why-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.why-icon i {
    font-size: 2.5rem;
    color: var(--white);
}

.why-item h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

/* Portfolio Section */
.portfolio {
    background: var(--white);
}

.portfolio-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.portfolio-item {
    display: none;
    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.portfolio-item.active {
    display: block;
}

.portfolio-content {
    padding: 3rem;
}

.portfolio-info h3 {
    color: var(--text-dark);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.portfolio-category {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 2rem;
}

.portfolio-results {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.result-item {
    text-align: center;
    flex: 1;
    min-width: 120px;
}

.result-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
}

.result-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

.portfolio-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

.portfolio-client {
    font-weight: 600;
    color: var(--text-dark);
    font-style: italic;
}

.portfolio-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 2rem;
}

.portfolio-btn {
    width: 50px;
    height: 50px;
    border: 2px solid var(--primary-color);
    background: transparent;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.portfolio-btn:hover {
    background: var(--primary-color);
    color: var(--white);
}

.portfolio-dots {
    display: flex;
    gap: 1rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #E5E7EB;
    cursor: pointer;
    transition: background 0.3s ease;
}

.dot.active {
    background: var(--primary-color);
}

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

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #E5E7EB;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.privacy-link {
    color: var(--primary-color);
    text-decoration: none;
}

.privacy-link:hover {
    text-decoration: underline;
}

.btn-submit {
    width: 100%;
    margin-top: 1rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    color: var(--white);
    font-size: 1.2rem;
}

.contact-details h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-light);
    margin: 0;
}

/* Footer */
.footer {
    background: #1f274c;
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: var(--white);
    margin-bottom: 1rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 1rem 0;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        padding: 2rem 0;
    }
    
    .character-section {
        order: -1;
        margin-bottom: -10rem;
    }
    
    .astronaut-rabbit {
        transform: scale(0.8);
    }

    .hero-title {
        font-size: 2.5rem;
        white-space: nowrap;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-graphic {
        width: 300px;
        height: 400px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-between;
    }

    /* 모바일에서 floating-card들을 세로로 배치 */
    .floating-card {
        position: relative !important;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        margin: 10px 0;
        width: 200px;
        animation: none;
    }

    .card-1, .card-2, .card-3 {
        position: relative !important;
        top: auto !important;
        left: auto !important;
        right: auto !important;
        bottom: auto !important;
        animation-delay: 0s !important;
    }

    .section-title {
        font-size: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .portfolio-results {
        justify-content: center;
    }

    .result-item {
        min-width: 100px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 2rem;
        white-space: nowrap;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .problem-grid,
    .solution-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-results {
        flex-direction: column;
        gap: 1rem;
    }

    /* 더 작은 모바일 화면에서 floating-card 조정 */
    .hero-graphic {
        width: 280px;
        height: 350px;
    }

    .floating-card {
        width: 180px;
        padding: 15px;
        margin: 8px 0;
    }

    .floating-card i {
        font-size: 1.5rem;
    }

    .floating-card span {
        font-size: 0.9rem;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.message.success {
    background: #D1FAE5;
    color: #065F46;
    border: 1px solid #A7F3D0;
}

.message.error {
    background: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FECACA;
}