/*========================================
   Reset & Variables
========================================*/
:root {
    --color-primary: #bfa35a; /* 鈍金・落ち着いたゴールド */
    --color-text: #2b2b2b;    /* 墨色 */
    --color-text-light: #6e6e6e;
    --color-bg: #fcfcfc;      /* 白練・わずかに温かみのある白 */
    --color-bg-alt: #f3f3f1;
    --font-serif: 'Noto Serif JP', 'Yu Mincho', 'YuMincho', 'Hiragino Mincho ProN', serif;
    --font-sans: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2.5rem;
    --spacing-lg: 5rem;
    --spacing-xl: 8rem;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-serif);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.8;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease, opacity 0.3s ease;
}

a:hover {
    color: var(--color-primary);
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 5%;
}

/*========================================
   Header
========================================*/
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: rgba(252, 252, 252, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(43, 43, 43, 0.05);
    transition: background-color 0.3s ease;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.site-title {
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

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

.global-nav a {
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.1em;
}

/*========================================
   Hero Section
========================================*/
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-color: var(--color-bg);
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.03) 100%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 300;
    line-height: 1.4;
    margin-bottom: 1.5rem;
    letter-spacing: 0.15em;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--color-text-light);
    letter-spacing: 0.2em;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.7;
}

.scroll-indicator span {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.scroll-indicator .line {
    width: 1px;
    height: 50px;
    background-color: var(--color-text);
    animation: scrollLine 2s infinite ease-in-out;
    transform-origin: top;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); }
    50% { transform: scaleY(1); }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/*========================================
   Sections Common
========================================*/
.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 400;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.15em;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 40px;
    height: 1px;
    background-color: var(--color-primary);
    margin: 1.5rem auto 0;
}

/*========================================
   Concept
========================================*/
.concept {
    background-color: var(--color-bg-alt);
    text-align: center;
}

.concept .section-content {
    font-size: 1.1rem;
    line-height: 2.2;
}

/*========================================
   Profile
========================================*/
.profile-wrap {
    display: flex;
    gap: 4rem;
    align-items: center;
}

.profile-image {
    flex: 1;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    background-color: #e0e0e0;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.image-placeholder::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0,0,0,0.05) 100%);
}

.profile-info {
    flex: 1;
}

.profile-info .section-title {
    text-align: left;
}

.profile-info .section-title::after {
    margin: 1.5rem 0 0 0;
}

.link-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
    font-size: 0.9rem;
    color: var(--color-primary);
    border-bottom: 1px solid var(--color-primary);
    padding-bottom: 0.2rem;
}

.link-more .arrow {
    transition: transform 0.3s ease;
}

.link-more:hover .arrow {
    transform: translateX(5px);
}

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

.service-card {
    background-color: #fff;
    padding: 3rem 2rem;
    border: 1px solid rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.service-card h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

/*========================================
   Contact
========================================*/
.contact {
    background-color: var(--color-bg-alt);
    text-align: center;
}

.btn-primary {
    display: inline-block;
    background-color: var(--color-text);
    color: #fff;
    padding: 1rem 3rem;
    margin-top: 2rem;
    letter-spacing: 0.1em;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: var(--color-primary);
    color: #fff;
}

/*========================================
   Footer
========================================*/
.site-footer {
    background-color: var(--color-text);
    color: #fff;
    padding: var(--spacing-lg) 0 2rem;
    text-align: center;
}

.footer-info h2 {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 0.5rem;
    letter-spacing: 0.1em;
}

.footer-links {
    margin: 2rem 0;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.6);
}

.footer-links a {
    color: inherit;
    margin: 0 0.5rem;
}

.copyright {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
    font-family: var(--font-sans);
}

/*========================================
   Service & Prices
========================================*/
.service-card {
    display: flex;
    flex-direction: column;
}
.service-text {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    text-align: left;
}
.service-card .price {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px dashed rgba(0,0,0,0.1);
}
.service-card .price span {
    font-size: 0.8rem;
    font-weight: normal;
    color: var(--color-text-light);
}

/*========================================
   Company Info
========================================*/
.company-info {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    border-top: 1px solid rgba(0,0,0,0.1);
}
.company-info dt {
    font-weight: 600;
    padding: 1.5rem 0 0.5rem;
    color: var(--color-primary);
}
.company-info dd {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

/*========================================
   Contact Flow
========================================*/
.section-desc {
    margin-bottom: 3rem;
}
.flow-list {
    max-width: 700px;
    margin: 0 auto 3rem;
    text-align: left;
}
.flow-step {
    background-color: #fff;
    padding: 2rem;
    margin-bottom: 1.5rem;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}
.step-num {
    background-color: var(--color-primary);
    color: #fff;
    padding: 0.3rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    border-radius: 2px;
    white-space: nowrap;
}
.btn-wrap {
    text-align: center;
}

/*========================================
   Animations
========================================*/
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

/*========================================
   Responsive
========================================*/
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: 1rem;
    }
    
    .global-nav ul {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .profile-wrap {
        flex-direction: column;
        gap: 2rem;
    }
    
    .profile-info .section-title {
        text-align: center;
    }
    
    .profile-info .section-title::after {
        margin: 1.5rem auto 0;
    }
}