/* 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;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    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;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: #FF7700;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    background: linear-gradient(135deg, #FF7700, #FF8A33);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

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

.nav-link:hover {
    color: #FF7700;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #FF7700;
    transition: width 0.3s ease;
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #FFF8F0 0%, #FFFFFF 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23FF7700" opacity="0.03"/><circle cx="75" cy="75" r="1" fill="%23FF7700" opacity="0.03"/><circle cx="50" cy="10" r="0.5" fill="%23FF7700" opacity="0.02"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.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: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #1a1a1a;
}

.highlight {
    background: linear-gradient(135deg, #FF7700, #FF8A33);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: #FF7700;
    color: white;
    box-shadow: 0 4px 20px rgba(255, 119, 0, 0.3);
}

.btn-primary:hover {
    background: #E65C00;
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 119, 0, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #FF7700;
    border-color: #FF7700;
}

.btn-secondary:hover {
    background: #FF7700;
    color: white;
    transform: translateY(-2px);
}

.hero-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 119, 0, 0.1);
    border: 1px solid rgba(255, 119, 0, 0.2);
    border-radius: 25px;
    font-size: 0.9rem;
    color: #FF7700;
    font-weight: 500;
}

.badge-icon {
    font-size: 1.1rem;
}

/* Phone Mockup */
.phone-mockup {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-screen {
    width: 280px;
    height: 500px;
    border-radius: 30px;
    padding: 20px;
        border: 1px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.phone-screen::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    border-radius: 2px;
    z-index: 2;
}

.app-screenshot {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
    position: relative;
    z-index: 1;
}

/* Screenshots Section */
.screenshots {
    padding: 80px 0;
    background: #f8f9fa;
}

.screenshots .section-description {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.screenshot-item {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.screenshot-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(255, 119, 0, 0.15);
    border-color: rgba(255, 119, 0, 0.2);
}

.screenshot-img {
    width: 100%;
    max-width: 250px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.screenshot-item:hover .screenshot-img {
    transform: scale(1.05);
    box-shadow: 0 20px 50px rgba(255, 119, 0, 0.2);
}

.screenshot-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 1.5rem 0 0.5rem;
    color: #1a1a1a;
}

.screenshot-item p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1a1a1a;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(255, 119, 0, 0.15);
    border-color: rgba(255, 119, 0, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

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

/* Download Section */
.download {
    padding: 80px 0;
    background: linear-gradient(135deg, #FF7700 0%, #FF8A33 100%);
    color: white;
    text-align: center;
}

.download .section-title {
    color: white;
}

.download .section-description {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 2.5rem;
    background: white;
    color: #FF7700;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    min-width: 300px;
    justify-content: center;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.download-icon {
    font-size: 2rem;
}

.download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.download-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.download-name {
    font-size: 1.1rem;
    font-weight: 600;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

.info-icon {
    font-size: 1.2rem;
}

/* About Section */
.about {
    padding: 80px 0;
    background: white;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.7;
    color: #555;
}

.about-features {
    margin-top: 2rem;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    font-size: 1rem;
    color: #555;
}

.feature-check {
    color: #FF7700;
    font-weight: 700;
    font-size: 1.2rem;
}

.about-screenshots {
    display: flex;
    justify-content: center;
    align-items: center;
}

.screenshot-stack {
    position: relative;
    width: 300px;
    height: 400px;
}

.stacked-screenshot {
    position: absolute;
    width: 200px;
    height: 300px;
    object-fit: cover;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.stacked-screenshot:first-child {
    top: 0;
    left: 0;
    z-index: 2;
}

.stacked-screenshot:last-child {
    top: 50px;
    right: 0;
    z-index: 1;
    transform: rotate(5deg);
}

.screenshot-stack:hover .stacked-screenshot:first-child {
    transform: translateY(-10px) rotate(-2deg);
}

.screenshot-stack:hover .stacked-screenshot:last-child {
    transform: translateY(-5px) rotate(8deg);
}

.app-header {
    background: #FF7700;
    color: white;
    padding: 1rem;
    text-align: center;
    position: relative;
}

.app-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.app-date {
    display: block;
    font-size: 0.8rem;
    opacity: 0.9;
    margin-top: 0.2rem;
}

.app-content {
    flex: 1;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5rem;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: 8px;
    background: #f8f9fa;
    color: #666;
}

.calendar-day.active {
    background: #FF7700;
    color: white;
}

.app-stats {
    display: flex;
    justify-content: space-around;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 12px;
}

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

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #FF7700;
}

.stat-label {
    font-size: 0.8rem;
    color: #666;
}

/* About Section */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.7;
    color: #555;
}

.about-features {
    margin-top: 2rem;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
    font-size: 1rem;
    color: #555;
}

.feature-check {
    color: #FF7700;
    font-weight: 700;
    font-size: 1.2rem;
}

.about-illustration {
    display: flex;
    justify-content: center;
    align-items: center;
}

.illustration-app {
    width: 200px;
    height: 300px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.app-screen {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.app-header-small {
    background: #FF7700;
    color: white;
    padding: 0.8rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.app-content-small {
    flex: 1;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mini-calendar {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.3rem;
}

.mini-day {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    background: #f0f0f0;
}

.mini-day.active {
    background: #FF7700;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    text-align: center;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #FF7700;
}

.footer-description {
    color: #ccc;
    margin-bottom: 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #FF7700;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #999;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        padding: 2rem;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        flex-direction: column;
        gap: 1rem;
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshots-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .download-info {
        flex-direction: column;
        gap: 1rem;
    }
    
    .phone-screen {
        width: 250px;
        height: 450px;
    }
    
    .hero-badges {
        justify-content: center;
    }
    
    .download-btn {
        min-width: 280px;
    }
    
    .screenshot-stack {
        width: 250px;
        height: 350px;
    }
    
    .stacked-screenshot {
        width: 160px;
        height: 250px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .download-btn {
        min-width: 250px;
        padding: 1rem 2rem;
    }
    
    .phone-screen {
        width: 220px;
        height: 400px;
    }
    
    .hero-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .badge {
        width: 100%;
        max-width: 200px;
        justify-content: center;
    }
    
    .features-grid {
        gap: 1.5rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .screenshot-item {
        padding: 1.5rem;
    }
    
    .download-info {
        gap: 1.5rem;
    }
    
    .info-item {
        font-size: 0.9rem;
    }
    
    .screenshot-stack {
        width: 200px;
        height: 300px;
    }
    
    .stacked-screenshot {
        width: 130px;
        height: 200px;
    }
}

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

.feature-card,
.download-btn {
    animation: fadeInUp 0.6s ease forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }

/* Legal Pages Styles */
.legal-content {
    padding: 140px 0 80px;
    background: white;
    min-height: 100vh;
}

.legal-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
    text-align: center;
}

.last-updated {
    text-align: center;
    color: #64748b;
    margin-bottom: 3rem;
    font-size: 1.125rem;
}

.legal-section {
    margin-bottom: 2.5rem;
}

.legal-section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
    border-left: 4px solid #6366f1;
    padding-left: 1rem;
}

.legal-section p {
    font-size: 1.125rem;
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-section ul {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.legal-section li {
    font-size: 1.125rem;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.back-to-home {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #e2e8f0;
}

/* Smooth scrolling for older browsers */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}