/* 기본 스타일 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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;
}

/* 네비게이션 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d5a27;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #2d5a27;
}

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

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 히어로 섹션 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f0f8f0 0%, #e8f5e8 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #2d5a27;
}

.highlight {
    color: #4a7c59;
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #4a7c59, #6b9b6b);
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 50px;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #4a7c59, #6b9b6b);
    color: white;
    box-shadow: 0 4px 15px rgba(74, 124, 89, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 124, 89, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #4a7c59;
    border: 2px solid #4a7c59;
}

.btn-secondary:hover {
    background: #4a7c59;
    color: white;
}

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

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #4a7c59;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
}

/* 히어로 비주얼 */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.plant-container {
    position: relative;
    width: 300px;
    height: 400px;
}

.plant-pot {
    position: relative;
    width: 200px;
    height: 300px;
    background: linear-gradient(135deg, #8b4513, #a0522d);
    border-radius: 0 0 100px 100px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.plant-body {
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 200px;
}

.leaf {
    position: absolute;
    background: linear-gradient(135deg, #4a7c59, #6b9b6b);
    border-radius: 50% 0 50% 0;
    animation: sway 3s ease-in-out infinite;
}

.leaf-1 {
    width: 80px;
    height: 60px;
    top: 20px;
    left: 35px;
    animation-delay: 0s;
}

.leaf-2 {
    width: 70px;
    height: 50px;
    top: 40px;
    right: 20px;
    animation-delay: 1s;
}

.leaf-3 {
    width: 90px;
    height: 70px;
    top: 60px;
    left: 20px;
    animation-delay: 2s;
}

@keyframes sway {
    0%, 100% { transform: rotate(-2deg); }
    50% { transform: rotate(2deg); }
}

.sensor-dots {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.sensor-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff6b6b;
    animation: pulse 2s infinite;
}

.sensor-dot[data-sensor="co2"] {
    top: 50px;
    left: 20px;
    animation-delay: 0s;
}

.sensor-dot[data-sensor="moisture"] {
    top: 80px;
    right: 30px;
    animation-delay: 0.3s;
}

.sensor-dot[data-sensor="light"] {
    top: 120px;
    left: 10px;
    animation-delay: 0.6s;
}

.sensor-dot[data-sensor="temp"] {
    top: 150px;
    right: 20px;
    animation-delay: 0.9s;
}

.sensor-dot[data-sensor="voc"] {
    top: 180px;
    left: 30px;
    animation-delay: 1.2s;
}

.sensor-dot[data-sensor="ph"] {
    top: 210px;
    right: 10px;
    animation-delay: 1.5s;
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

.ai-chat-bubble {
    position: absolute;
    top: -100px;
    right: -50px;
    background: white;
    padding: 20px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: 250px;
    animation: float 3s ease-in-out infinite;
}

.ai-chat-bubble::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 30px;
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid white;
}

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

.chat-content {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.chat-avatar {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #4a7c59, #6b9b6b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.chat-message {
    font-size: 0.9rem;
    color: #333;
    line-height: 1.4;
}

/* 섹션 공통 스타일 */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: #2d5a27;
}

/* 문제점 섹션 */
.problem-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.problem-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.problem-card: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 20px;
    color: white;
    font-size: 2rem;
}

.problem-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.problem-card p {
    color: #666;
    line-height: 1.6;
}

/* 솔루션 섹션 */
.solution-section {
    padding: 100px 0;
    background: white;
}

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.solution-text h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #2d5a27;
}

.solution-text p {
    margin-bottom: 30px;
    color: #666;
    line-height: 1.8;
}

.solution-demo {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 20px;
}

.demo-scenario {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.scenario-header {
    background: #4a7c59;
    color: white;
    padding: 15px 20px;
    font-weight: 600;
}

.scenario-content {
    padding: 20px;
}

.before-after {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.before h4, .after h4 {
    font-size: 1rem;
    margin-bottom: 15px;
    color: #333;
}

.notification.old {
    background: #ffebee;
    border: 1px solid #ffcdd2;
    padding: 15px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #c62828;
}

.chat-message.new {
    background: #e8f5e8;
    border: 1px solid #c8e6c9;
    padding: 15px;
    border-radius: 10px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.message-avatar {
    width: 30px;
    height: 30px;
    background: #4a7c59;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    flex-shrink: 0;
}

.message-text {
    color: #2d5a27;
    line-height: 1.4;
}

/* 기능 섹션 */
.features-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #4a7c59, #6b9b6b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 데모 섹션 */
.demo-section {
    padding: 100px 0;
    background: white;
}

.demo-container {
    max-width: 800px;
    margin: 0 auto;
}

.demo-scenarios {
    background: #f8f9fa;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.scenario-tabs {
    display: flex;
    background: #e8f5e8;
}

.tab-btn {
    flex: 1;
    padding: 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-weight: 600;
    color: #666;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: #4a7c59;
    color: white;
}

.scenario-content {
    padding: 40px;
}

.scenario {
    display: none;
}

.scenario.active {
    display: block;
}

.scenario-data {
    margin-bottom: 30px;
}

.scenario-data h4 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: #333;
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.data-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.data-label {
    font-weight: 500;
    color: #333;
}

.data-value {
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.data-value.low {
    background: #ffebee;
    color: #c62828;
}

.data-value.high {
    background: #fff3e0;
    color: #ef6c00;
}

.data-value.good {
    background: #e8f5e8;
    color: #2d5a27;
}

.data-value.warning {
    background: #fff8e1;
    color: #f57f17;
}

.scenario-chat {
    background: white;
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.plant-message {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

/* 가격 섹션 */
.pricing-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.featured {
    border: 3px solid #4a7c59;
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #4a7c59;
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #333;
}

.price {
    margin-bottom: 30px;
}

.currency {
    font-size: 1.2rem;
    color: #666;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: #4a7c59;
}

.period {
    font-size: 1rem;
    color: #666;
}

.pricing-features ul {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features i {
    color: #4a7c59;
    font-size: 1.2rem;
}

.btn-outline {
    background: transparent;
    color: #4a7c59;
    border: 2px solid #4a7c59;
}

.btn-outline:hover {
    background: #4a7c59;
    color: white;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* CTA 섹션 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #4a7c59, #6b9b6b);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.btn-large {
    padding: 20px 40px;
    font-size: 1.2rem;
}

/* 푸터 */
.footer {
    background: #2d5a27;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.footer-brand p {
    opacity: 0.8;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-column li {
    margin-bottom: 10px;
}

.footer-column a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-column a:hover {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 20px;
    text-align: center;
    opacity: 0.8;
}

/* 모달 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    background: linear-gradient(135deg, #4a7c59, #6b9b6b);
    color: white;
    padding: 30px;
    border-radius: 20px 20px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

.close {
    color: white;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.close:hover {
    opacity: 0.7;
}

.modal-body {
    padding: 40px;
}

.modal-body p {
    margin-bottom: 30px;
    color: #666;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #4a7c59;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .solution-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .before-after {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .scenario-tabs {
        flex-direction: column;
    }
    
    .data-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
    }
    
    .modal-body {
        padding: 30px 20px;
    }
}