/* Landing Page CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    background: rgba(255, 255, 255, 0.95);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    color: #667eea;
}

.nav-links a {
    margin-left: 30px;
    text-decoration: none;
    color: #666;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #333;
}

.cta-button {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white !important;
    padding: 10px 25px;
    border-radius: 25px;
    transition: transform 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10%;
    background: linear-gradient(120deg, #fdfbfb 0%, #ebedee 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 500px;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #2c3e50;
    font-weight: 900;
}

.highlight {
    background: linear-gradient(120deg, #89f7fe 0%, #66a6ff 100%);
    background-clip: text;
    /* Fallback */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    color: #66a6ff;
}

.hero p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 40px;
}

.hero-buttons .start-btn {
    display: inline-block;
    padding: 15px 40px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
}

.hero-buttons .start-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

.hero-buttons .learn-more {
    margin-left: 20px;
    color: #666;
    text-decoration: none;
    font-weight: 500;
}

.hero-image {
    position: relative;
    width: 45%;
    max-width: 500px;
    aspect-ratio: 1;
    border-radius: 40px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.floating-card {
    position: absolute;
    background: white;
    padding: 10px 20px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    font-weight: bold;
    font-size: 0.9rem;
    color: #333;
    animation: float 4s ease-in-out infinite;
}

.c1 {
    top: 20%;
    left: -30px;
    animation-delay: 0s;
}

.c2 {
    bottom: 20%;
    right: -20px;
    animation-delay: 1.5s;
}

.c3 {
    top: 60%;
    left: 0;
    animation-delay: 1s;
}

@keyframes float {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0);
    }
}

/* Animations */
.slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards;
}

.slide-left {
    opacity: 0;
    transform: translateX(30px);
    animation: fadeInLeft 1s forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

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

@keyframes fadeInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Features */
.features {
    padding: 100px 10%;
    background: white;
    text-align: center;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #2c3e50;
}

.section-title p {
    color: #888;
    margin-bottom: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-card {
    padding: 40px;
    border-radius: 20px;
    background: #fdfbfb;
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.05);
    background: white;
}

.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
    color: #333;
}

.feature-card p {
    color: #666;
    font-size: 0.95rem;
}

/* Mockup Section */
.mockup-section {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 100px 10%;
    background: #f9f9f9;
    gap: 80px;
}

.mockup-text {
    flex: 1;
}

.mockup-text h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 800;
}

.mockup-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.phone-frame {
    width: 320px;
    height: 640px;
    border: 12px solid #333;
    border-radius: 40px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    background: white;
}

.phone-frame iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Footer */
.footer {
    padding: 40px;
    background: #2c3e50;
    color: white;
    text-align: center;
}

/* Scroll Animation Trigger */
.hidden {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        padding: 20px;
    }

    .nav-links {
        display: none;
    }

    .hero {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        padding: 100px 20px 40px;
        height: auto;
    }

    .hero-content {
        margin-bottom: 50px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-image {
        width: 100%;
        max-width: 400px;
    }

    .mockup-section {
        flex-direction: column;
        padding: 50px 20px;
    }
}