/* =========================================
   1. Base Settings & Variables
   ========================================= */
:root {
    --text-color: #333;
    --bg-color: #fff;
    --accent-color: #1a2a44; /* Deep Navy */
    --secondary-color: #bfa670; /* Muted Gold */
    --light-gray: #f4f5f7;
    --font-serif: 'Shippori Mincho', serif;
    --font-sans: 'Noto Sans JP', sans-serif;
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-color);
    line-height: 1.8;
    background-color: var(--bg-color);
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: 0.3s; }
ul { list-style: none; }

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

.sp-only { display: none; }
.pc-only { display: block; }

@media (max-width: 768px) {
    .sp-only { display: block; }
    .pc-only { display: none; }
}

/* =========================================
   2. Header & Navigation
   ========================================= */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    /* 上下15px、左右40pxでスリムに固定 */
    padding: 15px 40px; 
    position: fixed;
    width: 100%;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.logo {
    display: flex;        
    align-items: center; 
    gap: 10px;            
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--accent-color);
    line-height: 1;
}

/* ロゴ画像のサイズ調整 */
.logo img {
    /* ここを40pxに戻すことで、ヘッダーがスリムになります */
    height: 40px; 
    width: auto;
    display: block;
}

.nav ul {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav a {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.nav a:hover { color: var(--secondary-color); }

.btn-contact {
    background-color: var(--accent-color);
    color: #fff !important;
    padding: 10px 24px;
    border-radius: 2px;
}

.btn-contact:hover {
    background-color: var(--secondary-color);
}

/* =========================================
   3. Hero Section (Top)
   ========================================= */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    
    background: 
        linear-gradient(135deg, rgba(26, 42, 68, 0.6) 0%, rgba(26, 42, 68, 0.2) 100%),
        url('hero-bg.jpg'); 
        
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-content {
    z-index: 2;
    padding: 0 20px;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
    text-align: left;
    padding-left: 5%;
}

.hero-copy {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    line-height: 1.4;
    letter-spacing: 0.1em;
    color: #fff; 
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-sub {
    font-size: 1.1rem;
    letter-spacing: 0.15em;
    font-weight: 500;
    color: #eee; 
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* =========================================
   4. Main Contents (Concept, Service, etc.)
   ========================================= */
.section {
    padding: 100px 0;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 10px;
    color: var(--accent-color);
}

.section-subtitle {
    text-align: center;
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-bottom: 60px;
    letter-spacing: 0.1em;
}

/* Concept */
.concept {
    background-color: #fff;
    text-align: center;
}

.concept .text-block {
    font-size: 1.1rem;
    line-height: 2.2;
}

.concept .text-block p {
    margin-bottom: 20px;
}

/* Service */
.service {
    background-color: var(--light-gray);
}

.service-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.service-card {
    background: #fff;
    padding: 50px;
    border-top: 3px solid var(--accent-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.service-card h3 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.service-desc {
    font-size: 0.95rem;
    color: #555;
    text-align: justify;
}

/* Strength */
.strength-list {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.strength-list li {
    width: 300px;
    text-align: center;
    padding: 40px 20px;
    border: 1px solid #eee;
}

.strength-list .num {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.strength-list .text {
    font-weight: 700;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Profile */
.profile-wrapper {
    display: flex;
    align-items: flex-start;
    gap: 60px;
    background: #fff;
}

.profile-img {
    flex: 1;
    max-width: 350px;
}

.profile-img img {
    width: 100%;
    height: auto;
    object-fit: cover;
    filter: grayscale(20%);
}

.profile-info {
    flex: 2;
    padding-top: 20px;
}

.position {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 5px;
}

.name {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    margin-bottom: 30px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
    display: inline-block;
    width: 100%;
}

.name .en {
    font-size: 1rem;
    font-family: var(--font-sans);
    color: #999;
    margin-left: 15px;
    font-weight: 400;
}

.bio p {
    margin-bottom: 15px;
    font-size: 0.95rem;
    color: #444;
}

/* Footer */
.footer {
    background-color: var(--accent-color);
    color: #fff;
    padding: 80px 0 30px;
    text-align: center;
}

.footer-cta {
    font-family: var(--font-serif);
    margin-bottom: 20px;
}

.footer p {
    margin-bottom: 30px;
    opacity: 0.8;
}

.btn-main {
    display: inline-block;
    background-color: #fff;
    color: var(--accent-color);
    padding: 15px 50px;
    font-weight: bold;
    letter-spacing: 0.1em;
    margin-bottom: 60px;
}

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

.copyright {
    font-size: 0.7rem;
    opacity: 0.5;
    margin-bottom: 0;
}

/* =========================================
   5. Contact Page Styles
   ========================================= */
.contact-bg {
    background-color: #f4f5f7;
    padding: 80px 0 120px;
}

.page-header {
    background-color: var(--accent-color);
    color: #fff;
    padding: 100px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.contact-card {
    max-width: 720px;
    margin: -50px auto 0;
    background: #fff;
    padding: 60px;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.05);
    position: relative;
    z-index: 10;
}

.form-item {
    margin-bottom: 35px;
}

.form-item label {
    display: block;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--accent-color);
    letter-spacing: 0.05em;
}

.badge-required, .badge-optional {
    font-size: 0.7rem;
    padding: 3px 8px;
    border-radius: 2px;
    margin-left: 8px;
    vertical-align: text-bottom;
}

.badge-required {
    background: #1a2a44;
    color: #fff;
}

.badge-optional {
    background: #eee;
    color: #666;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 18px;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-sans);
    background: #fdfdfd;
    transition: all 0.3s ease;
    appearance: none;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--accent-color);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(26, 42, 68, 0.1);
    outline: none;
}

::placeholder { color: #ccc; }

.form-submit {
    text-align: center;
    margin-top: 60px;
}

.btn-submit-modern {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    padding: 18px 60px;
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: 0.4s;
    border-radius: 2px;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 15px;
}

.btn-submit-modern:hover {
    background-color: var(--secondary-color);
    padding-right: 70px;
    padding-left: 50px;
}

/* =========================================
   6. Responsive Settings (Mobile)
   ========================================= */
@media (max-width: 768px) {
    .header { padding: 15px 20px; }
    .nav { display: none; }
    
    .hero {
        background-position: 70% center; 
        align-items: flex-end;
        padding-bottom: 100px;
    }
    .hero-content {
        text-align: left;
        padding-left: 20px;
    }
    .hero-copy { font-size: 2rem; }
    
    .service-grid { grid-template-columns: 1fr; }
    
    .profile-wrapper {
        flex-direction: column;
        align-items: center;
    }
    
    .profile-img {
        max-width: 100%;
        margin-bottom: 30px;
    }

    .contact-card {
        padding: 40px 20px;
        margin-top: 0;
        box-shadow: none;
    }
    
    .btn-submit-modern {
        width: 100%;
        justify-content: center;
    }
}