:root {
    --color-primary: #1a73e8;
    --color-primary-dark: #0f4fb3;
    --color-accent: #f5f9ff;
    --color-text: #1f2933;
    --color-muted: #546172;
    --color-background: #ffffff;
    --color-footer: #0b1728;
    --font-heading: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
    --font-body: 'Noto Sans JP', 'Yu Gothic', 'Hiragino Kaku Gothic ProN', sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-body);
    line-height: 1.7;
    background-color: var(--color-background);
    color: var(--color-text);
}

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

a {
    color: inherit;
    text-decoration: none;
}

a:hover,
a:focus {
    text-decoration: underline;
}

.container {
    width: min(1100px, 92vw);
    margin: 0 auto;
}

.navbar {
    background-color: rgba(11, 23, 40, 0.95);
    color: #ffffff;
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
}

.navbar__logo {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.navbar__links {
    list-style: none;
    display: flex;
    gap: 1.25rem;
    margin: 0;
    padding: 0;
    font-size: 0.95rem;
}

.hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: linear-gradient(rgba(12, 32, 56, 0.8), rgba(12, 32, 56, 0.8)),
                url('https://images.unsplash.com/photo-1502877338535-766e1452684a?auto=format&fit=crop&w=1400&q=80') center/cover no-repeat;
    color: #ffffff;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(10, 24, 41, 0.9) 30%, rgba(10, 24, 41, 0.2) 100%);
}

.hero__content {
    position: relative;
    z-index: 1;
    padding: 6rem 0 4rem;
    max-width: 580px;
}

.hero__badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.2);
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 3.2rem);
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.button {
    display: inline-block;
    padding: 0.85rem 1.75rem;
    border-radius: 999px;
    font-weight: 600;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.button--primary {
    background: var(--color-primary);
    color: #ffffff;
}

.button--primary:hover,
.button--primary:focus {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

.button--secondary {
    background: #ffffff;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.button--secondary:hover,
.button--secondary:focus {
    background: var(--color-primary);
    color: #ffffff;
}

.section {
    padding: 5rem 0;
}

.section h2 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 2.5rem;
    text-align: center;
    position: relative;
}

.section h2::after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background: var(--color-primary);
    margin: 1rem auto 0;
}

.section--light {
    background: var(--color-accent);
}

.section--accent {
    background: linear-gradient(120deg, #0f4fb3, #1a73e8);
    color: #ffffff;
}

.grid {
    display: grid;
    gap: 1.75rem;
}

.grid--three {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
    background: #ffffff;
    border-radius: 16px;
    padding: 1.75rem;
    box-shadow: 0 12px 32px rgba(15, 79, 179, 0.12);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card h3 {
    margin-top: 0;
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.card p {
    color: var(--color-muted);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 36px rgba(15, 79, 179, 0.18);
}

.fleet {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.fleet__item {
    background: var(--white);
    padding: 1.75rem;
    border-radius: 16px;
    border: 1px solid var(--gray-300);
    display: grid;
    gap: 1rem;
}

.fleet__item dl {
    margin: 0;
    display: grid;
    gap: 0.75rem;
}

.fleet__item dl div {
    display: flex;
    justify-content: space-between;
    border-bottom: 1px dashed var(--gray-300);
    padding-bottom: 0.35rem;
}

.fleet__item dt {
    font-weight: 600;
}

.fleet__item dd {
    margin: 0;
    color: var(--gray-600);
}

.news {
    display: grid;
    gap: 1.75rem;
}

.news__item {
    background: var(--white);
    border-left: 4px solid var(--blue-500);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(15, 79, 179, 0.08);
}

.news__item h3 {
    margin: 0.5rem 0 0.75rem;
}

.news__item time {
    font-size: 0.85rem;
    color: var(--gray-600);
    letter-spacing: 0.04em;
}

.company {
    display: grid;
    gap: 3rem;
    align-items: start;
}

.company__profile dl {
    margin: 0;
    display: grid;
    gap: 1rem;
}

.company__profile dl div {
    display: grid;
    gap: 0.35rem;
}

.company__profile dt {
    font-weight: 600;
    color: var(--gray-600);
}

.company__profile dd {
    margin: 0;
}

.company__contact {
    background: var(--white);
    border-radius: 18px;
    padding: 2rem;
    box-shadow: 0 18px 45px rgba(15, 79, 179, 0.12);
}

.contact-form {
    display: grid;
    gap: 1rem;
}

.contact-form label {
    font-weight: 600;
    color: var(--gray-600);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--gray-300);
    font: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--blue-500);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.25);
}

.site-footer {
    background: var(--blue-900);
    color: rgba(255, 255, 255, 0.7);
    padding: 2rem 0;
}

.site-footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.9rem;
}

@media (max-width: 960px) {
    .hero__inner {
        text-align: center;
    }

    .hero__lead p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__actions {
        justify-content: center;
    }
}

@media (max-width: 800px) {
    .site-nav__links {
        flex-direction: column;
        gap: 1rem;
        padding: 1.25rem 0 0;
    }

    .js .site-nav__links {
        position: absolute;
        top: 100%;
        right: 1rem;
        background: rgba(11, 31, 58, 0.95);
        padding: 1.25rem;
        border-radius: 12px;
        min-width: 180px;
        box-shadow: 0 18px 35px rgba(0, 0, 0, 0.25);
        transform-origin: top right;
        transform: scale(0.9);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s ease, transform 0.2s ease;
    }

    .js .site-nav__links--open {
        opacity: 1;
        transform: scale(1);
        pointer-events: auto;
    }

    .site-nav__toggle {
        display: none;
    }

    .js .site-nav__toggle {
        display: inline-flex;
    }
}

@media (max-width: 720px) {
    .site-header__inner {
        gap: 1rem;
    }

    .hero__inner {
        gap: 2rem;
    }

    .section {
        padding: 4rem 0;
    }

    .site-footer__inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 560px) {
    .logo-text {
        display: none;
    }

    .hero__stats {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    }
}