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

:root {
    --primary-color: #000000;
    --secondary-color: #666666;
    --light-color: #F8F9FA;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #E0E0E0;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #FFFFFF;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ====================================
   Typography
   ==================================== */
h1, h2, h3 {
    font-weight: 300;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 200;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    margin-bottom: 60px;
    text-align: center;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 1px;
    background: var(--primary-color);
}

h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-light);
}

/* ====================================
   Navigation
   ==================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-text {
    font-weight: 500;
    font-size: 1.1rem;
    letter-spacing: 2px;
    color: var(--primary-color);
}

.logo-dots {
    display: flex;
    gap: 4px;
}

.dot {
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    transition: var(--transition);
}

.dot:hover {
    transform: scale(1.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 60px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 400;
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

/* ====================================
   Hero Section
   ==================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: #FFFFFF;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    color: var(--primary-color);
    margin-bottom: 40px;
    font-weight: 200;
    letter-spacing: 0.02em;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-light);
    font-weight: 300;
}

/* ====================================
   About Section
   ==================================== */
.about {
    padding: 120px 0;
    background: var(--light-color);
}

.about-content {
    max-width: 600px;
    margin: 0 auto 80px;
    text-align: center;
}

.about-content p {
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.services-simple {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    margin-top: 80px;
}

.service-item {
    text-align: center;
    padding: 40px 20px;
}

.service-item h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 400;
}

.service-item p {
    font-size: 0.9rem;
}

/* ====================================
   Work Section
   ==================================== */
.work {
    padding: 120px 0;
    background: #FFFFFF;
}

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

.work-item {
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.work-item h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 400;
}

.work-item p {
    font-size: 0.9rem;
}

/* ====================================
   Contact Section
   ==================================== */
.contact {
    padding: 120px 0;
    background: var(--light-color);
    text-align: center;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-content p {
    font-size: 1.1rem;
    margin-bottom: 40px;
}

/* ====================================
   Contact Form
   ==================================== */
.contact-form-section {
    margin: 40px 0;
    padding: 20px;
    background: #FFFFFF;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.contact-form-section iframe {
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.contact-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 400;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
}

.contact-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.contact-links a:hover::after {
    width: 100%;
}

/* ====================================
   Footer
   ==================================== */
.footer {
    padding: 60px 0;
    background: #FFFFFF;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

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

/* ====================================
   Responsive Design
   ==================================== */
@media (max-width: 768px) {
    .nav-menu {
        gap: 30px;
    }
    
    .nav-menu a {
        font-size: 0.8rem;
    }
    
    .services-simple {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .work-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
        gap: 20px;
    }
    
    .contact-form-section {
        padding: 15px;
        margin: 30px 0;
    }
    
    .contact-form-section iframe {
        height: 900px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 15px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .hero-content {
        padding: 0 15px;
    }
    
    .container {
        padding: 0 15px;
    }
}