/* Base Reset & Variables */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Noto Serif JP', 'Times New Roman', serif;
    color: #2b2b2b;
    background-color: #faf9f7;
    line-height: 2;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    color: inherit;
    text-decoration: none;
}

/* Utility */
.container, .section-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}
.editorial-wide-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}
.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 400;
    margin-bottom: 40px;
    letter-spacing: 0.12em;
    position: relative;
}
.section-title::after {
    content: '';
    display: block;
    width: 30px;
    height: 1px;
    background-color: #999;
    margin: 16px auto 0;
}
.text-center {
    text-align: center;
}
.editorial-p {
    font-size: 1.1rem;
    color: #444;
    line-height: 2.3;
}

/* Header */
header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 10;
    padding: 24px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
/*    background: linear-gradient(to bottom, rgba(255,255,255,0.8), rgba(255,255,255,0));*/
}
.logo {
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    font-family: 'Noto Serif JP', serif;
}
nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
    align-items: center;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.94rem;
    letter-spacing: 0.15em;
}
nav a.btn-contact {
    background-color: #1a1a1a;
    color: #fff;
    padding: 8px 18px;
    transition: opacity 0.3s;
}
nav a.btn-contact:hover {
    opacity: 0.8;
}

/* Key Visual (Full Width) */
.key-visual {
    width: 100%;
    height: 80vh;
    min-height: 500px;
    position: relative;
    background: url('../img/key.jpg') center bottom;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.kv-content {
    position: relative;
    z-index: 1;
    padding: 0 20px;
}
.kv-content h1 {
    font-size: 2.6rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    margin-top: -24px;
    margin-bottom: 20px;
    color: #FFF;
}
.kv-content p {
    font-size: 1.2rem;
    color: #FFF;
    letter-spacing: 0.1em;
}

/* Intro Section */
.intro-section {
    padding: 100px 0;
}
.intro-heading {
    font-size: 2.2rem;
    line-height: 2.2;
    margin-bottom: 48px;
    font-weight: 400;
    text-align: center;
}
.intro-text {
    font-size: 1.2rem;
    color: #444;
    line-height: 2.0;
    max-width: 1000px;
    margin: 0 auto;
    text-align: left;
}
.intro-text p {
    margin-bottom: 24px;
}

/* Process Section */
.process-section {
    padding: 90px 0;
    background-color: #f5f4f0;
}
.process-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-top: 50px;
    gap: 12px;
}
.process-item {
    flex: 1;
    text-align: center;
    position: relative;
}
.process-num {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 4px;
}
.process-name {
    font-size: 0.94rem;
    font-weight: 600;
    margin-bottom: 20px;
    height: 2.4em;
}
.process-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.process-icon svg {
    width: 28px;
    height: 28px;
    stroke: #333;
    stroke-width: 1.2;
    fill: none;
}
.process-desc {
    font-size: 0.72rem;
    color: #666;
    line-height: 1.8;
    font-family: 'Noto Sans JP', sans-serif;
}
.process-desc span {
    display: block;
}
.process-arrow {
    position: absolute;
    top: 70px;
    right: -10px;
    color: #aaa;
    font-size: 0.9rem;
}

/* Business / Services Section */
.business-section {
    padding: 100px 0;
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 50px;
}
.card {
    background-color: #fff;
    border: 1px solid #e5e3dd;
    padding: 36px 28px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 18px;
    line-height: 1.6;
}
.card-text {
    font-size: 1.0rem;
    color: #555;
    line-height: 2;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 300;
}

/* Banner Section (空港のモノクロ画像に修正) */
.banner-section {
    width: 100%;
    position: relative;
    background: url('../img/kaigai.png') center/cover no-repeat;
    filter: grayscale(100%);
    padding: 100px 0;
    color: #fff;
}
.banner-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.45);
}
.banner-content {
    position: relative;
    z-index: 1;
    max-width: 1000px;
}
.banner-title {
    font-size: 2.2rem;
    font-weight: 400;
    margin-bottom: 30px;
    letter-spacing: 0.1em;
    border-bottom: 1px solid rgba(255,255,255,0.4);
    padding-bottom: 16px;
    display: inline-block;
}
.banner-text {
    font-size: 1.2rem;
    line-height: 2.3;
    color: #eee;
    font-weight: 400;
}

/* Contact Section & Form */
.section.bg-light {
    padding: 100px 0;
    background-color: #faf9f7;
}
.form-wrapper {
    max-width: 720px;
    margin: 0 auto;
}
.form-wrapper .form-group {
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
}
.form-wrapper label {
    display: block;
    font-size: 1.0rem;
    font-weight: 500;
    font-family: 'Noto Sans JP', sans-serif;
    color: #333;
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}
.form-wrapper input[type="text"],
.form-wrapper input[type="email"],
.form-wrapper input[type="url"],
.form-wrapper select,
.form-wrapper textarea {
    width: 100%;
    height: 60px;
    padding: 12px 16px;
    border: 1px solid #dcd7ce;
    border-radius: 0;
    background-color: #fff;
    font-size: 1.0rem;
    font-family: 'Noto Sans JP', sans-serif;
    color: #2b2b2b;
    outline: none;
    transition: border-color 0.2s;
    -webkit-appearance: none;
    appearance: none;
}

.form-wrapper input:focus,
.form-wrapper select:focus,
.form-wrapper textarea:focus {
    border-color: #1a1a1a;
}
.form-wrapper select {
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="%333333" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="6 9 12 15 18 9"></polyline></svg>');
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
    cursor: pointer;
}
.form-wrapper textarea {
    resize: vertical;
    min-height: 200px;
    line-height: 1.8;
}
.form-wrapper ::placeholder {
    color: #aaa;
    font-weight: 300;
}
.form-submit {
    text-align: center;
    margin-top: 40px;
}
.btn-submit {
    display: inline-block;
    min-width: 260px;
    padding: 16px 32px;
    background-color: #1a1a1a;
    color: #fff;
    border: none;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    cursor: pointer;
    font-family: 'Noto Sans JP', sans-serif;
    transition: opacity 0.3s, transform 0.2s;
}
.btn-submit:hover {
    opacity: 0.85;
}

/* Footer */
footer {
    padding: 40px 48px;
    background-color: #f5f4f0;
    border-top: 1px solid #eae6df;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 0.72rem;
    color: #777;
}
.footer-left {
    display: flex;
    align-items: center;
    gap: 40px;
}
.footer-logo {
    font-size: 1.4rem;
    font-family: 'Noto Serif JP', serif;
    color: #333;
}
.footer-nav {
    display: flex;
    gap: 20px;
    list-style: none;
}
.footer-right {
    display: flex;
    gap: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    header {
        width: 100%;
        padding: 16px 20px;
        display: block;
    }

    .logo{
        width: 100%;
        text-align: center;
    }
    nav{
        width: 100%;
        margin-top: 40px;
    }
    nav ul{
        justify-content: center;
        font-size: 0.7rem;
    }
    .key-visual {
        width: 100%;
        height: 50vh;
        min-height: 300px;
        position: relative;
        background: url('../img/key.jpg') center bottom;
        background-repeat: no-repeat;
        background-size: cover;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
    }
    .kv-content h1 {
        width: 100%;
        padding: 0px;
        margin-top: 40px;
        font-size: 1.4rem;
    }
    .kv-content p {
        font-size: 0.8rem;
    }
    .intro-section .intro-heading{
        font-size: 1.4rem;
    }
    .intro-section .intro-text{
        font-size: 0.8rem;
    }
    .container .section-title{
        font-size: 1.4rem;    
    }
    .process-grid {
        display: flex;
        /*flex-direction: column;*/
        gap: 10px;
    }
    .process-name{
        font-size: 0.6rem;
    }
    .process-desc{
        font-size: 0.6rem;
    }
    .process-arrow {
        display: none;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
    .card-title {
        font-size: 1.0rem;
        font-weight: 600;
        margin-bottom: 18px;
        line-height: 1.6;
    }
    .card-text{
        font-size: 0.8rem;
    }
    .banner-section .banner-title{
        font-size: 1.4rem;
    }
    .banner-section .banner-text {
        font-size: 0.8rem;
    }
    #contact .section-title{
        font-size: 1.4rem;
    }
    #contact .editorial-p{
        font-size: 0.8rem; 
    }
    .section.bg-light {
        padding: 60px 0;
    }
    .btn-submit {
        width: 100%;
    }
    footer {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding: 30px 20px;
    }
    .footer-left {
        flex-direction: column;
        gap: 16px;
    }
}