/* Breakpoints moved into :root for standard CSS compatibility (cleaned up) */

:root {
    /* メインカラー */
    --color-primary: #58B2DC;
    --color-primary-dark: #0a2463;
    --color-primary-light: #b8e0f2;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-light: #f5f7fa;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --color-text: #333333;

    /* フォント */
    --font-jp: 'Noto Sans JP', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
    --font-en: 'Montserrat', Arial, sans-serif;

    /* スペーシング */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* 角丸 */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;

    /* シャドウ */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ベーススタイル */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-jp);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-jp);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-primary-dark);
    margin-bottom: var(--space-md);
}

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

ul {
    list-style: none;
}

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

/* レイアウト */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section {
    padding: var(--space-2xl) 0;
}

.section-title {
    font-size: 1.875rem;
    margin-bottom: var(--space-xl);
    text-align: center;
}

/* フレックスボックスユーティリティ */
.flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.flex-row {
    flex-direction: row;
}

.align-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-around {
    justify-content: space-around;
}

.gap-lg {
    gap: var(--space-lg);
}

/* スペーシングユーティリティ */

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-xl {
    margin-bottom: var(--space-xl);
}

.mt-lg {
    margin-top: var(--space-lg);
}

/* .mt-3xl removed — use component-specific class .article--spacious instead */

/* テキストユーティリティ */
.text-center {
    text-align: center;
}

.text-dark {
    color: var(--color-gray-900);
}

.font-bold {
    font-weight: 700;
}

/* サイズユーティリティ */

.text-xl {
    font-size: 1.25rem;
}

/* 位置ユーティリティ */
.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.full-width {
    width: 100%;
}

.full-height {
    height: 100%;
}

/* コンポーネント */
/* ヘッダー */
.header {
    /* 変更: ガラスモードで軽やかに */
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    padding: calc(var(--space-sm) + 4px) 0;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-box {
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--color-primary);
    border-radius: var(--radius-md);
    margin-right: var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: bold;
}

.company-name {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--color-gray-800);
}

.nav-menu {
    display: flex;
    gap: var(--space-lg);
}

/* ナビの見た目を調整 */
.nav-menu a,
.nav-link {
    position: relative;
    padding: 6px 2px;
    color: var(--color-gray-700);
    transition: color 200ms ease, transform 200ms ease;
}

.nav-link:hover {
    color: var(--color-primary-dark);
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    transition: width 200ms ease;
}

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

.button {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    padding: var(--space-md) var(--space-lg);
    /* unified radius and padding */
    border-radius: 10px;
    transition: background-color 0.3s, color 0.3s;
    box-shadow: 0 6px 18px rgba(9, 30, 66, 0.12);
}

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

.button-primary:hover {
    background-color: var(--color-primary-dark);
}

.button-small {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
}

.mobile-menu-toggle {
    background: none;
    border: none;
    color: var(--color-gray-600);
    cursor: pointer;
}

/* モバイルメニュー：高さアニメーションで自然に表示 */
.mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 360ms ease, opacity 240ms ease;
    opacity: 0;
    box-shadow: var(--shadow-md);
    background-color: var(--color-white);
}

.mobile-menu.open {
    max-height: 420px;
    opacity: 1;
}

.mobile-menu-item {
    padding: var(--space-sm) 0;
}

/* ヒーローセクション */
.hero {
    position: relative;
    width: 100%;
    height: 92vh;
    max-height: 820px;
    overflow: hidden;
    margin-top: 4.6rem; /* header高さ分 */
    display: grid;
    place-items: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    /*background: linear-gradient(180deg, rgba(0, 0, 0, 0.25), rgba(0, 0, 0, 0.6));*/
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 100vw;
    width: 100vw;
    padding: var(--space-2xl);
    color: var(--color-white);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);

}

.hero-content:before {
    backdrop-filter: blur(10px);
    background: linear-gradient(180deg, rgba(8, 8, 8, 0.75), rgba(8, 8, 8, 0.75));
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    height: 120%;
    top: -10%;
}

.hero-text {
    text-align: center;
    max-width: 48rem;
    color: var(--color-white);
}

/* タイトルを強調 */
.hero-title {
    font-size: 2.25rem;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-md);
    text-shadow: 0 0 6px rgba(0, 0, 0, 0.8);
    color: var(--color-primary);
}

.hero-title:after {
    content: "";
    display: block;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    margin-top: var(--space-md);
}

/* CTA */
.cta-group {
    margin-top: var(--space-lg);
    display: inline-flex;
    gap: 0.75rem;
    background: rgba(16, 16, 16, 0.3);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

.cta-group > * {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.25);
}

/* duplicate .button removed (merged above) */

.button-secondary {
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.button-secondary:hover {
    background: rgba(255, 255, 255, 0.16);
}

/* サービスカード（企業理念の下） */
.services-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.service-card {
    background: var(--color-white);
    border-radius: 12px;
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.service-card .icon {
    width: 56px;
    height: 56px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    flex-shrink: 0;
}

.service-card h4 {
    margin: 0 0 6px 0;
    font-size: 1.1rem;
}

.service-card p {
    margin: 0;
    color: var(--color-gray-600);
    font-size: 0.96rem;
}

/* フィロソフィーセクション */
.philosophy-section {
    position: relative;
}

.back-to-top {
    position: absolute;
    right: 5vw;
    top: -28px;
}

/* アバウトセクション */
.about-section {
    position: relative;
    overflow: hidden;
}

.diagonal-bg {
    position: absolute;
    height: 100%;
    width: 100%;
    background: linear-gradient(135deg, var(--color-gray-light) 50%, transparent 50%);
    z-index: 0;
}

.about-container {
    position: relative;
    z-index: 1;
}

.about-left {
    padding: var(--space-lg);
    border-radius: 8px;
}

.about-title-en {
    font-size: 2rem;
    margin-bottom: var(--space-2xl);
    text-align: center;
    font-family: var(--font-en);
    font-weight: bold;
}

.about-subtitle {
    font-size: 1.5rem;
}

/* 会社概要セクション */
.company-info {
    background-color: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.company-info-title {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.company-info-table {
    width: 100%;
    border-collapse: collapse;
}

.company-info-table th {
    text-align: left;
    padding: var(--space-md) var(--space-md);
    border-bottom: 1px solid var(--color-gray-200);
    width: 30%;
}

.company-info-table td {
    padding: var(--space-md) var(--space-md);
    border-bottom: 1px solid var(--color-gray-200);
}

/* フッター */
.footer {
    background: linear-gradient(180deg, rgba(245, 247, 250, 1), rgba(255, 255, 255, 1));
    padding: var(--space-2xl) 0;
}

.footer-container {
    position: relative;
    z-index: 1;
}

.footer-top {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
    gap: var(--space-lg);
}

.footer-logo {
    margin-bottom: var(--space-lg);
}

.social-links {
    display: flex;
    gap: var(--space-lg);
}

.social-link {
    color: var(--color-gray-400);
    transition: color 0.3s;
}

.social-link:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid var(--color-gray-200);
    padding-top: var(--space-xl);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    color: var(--color-gray-500);
    margin-bottom: var(--space-md);
}

.footer-link {
    color: var(--color-gray-500);
}

.footer-link:hover {
    color: var(--color-primary);
}

/* ローディングインジケータ */
.loading-wrapper {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    z-index: 9999;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 6px solid #eee;
    border-top: 6px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: var(--space-md);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/*!* ================================*/
/*   Environmental Policy (policy-content)*/
/*   ================================ *!*/
/*.policy-content {*/
/*  position: relative;*/
/*  margin-top: var(--space-lg);*/
/*  padding: clamp(1.75rem, 2.2vw, 3rem) clamp(1.4rem, 2vw, 2.5rem);*/
/*  background:*/
/*    linear-gradient(145deg,#ffffff 0%, #f5fbfe 55%, #eef6fb 100%);*/
/*  border: 1px solid var(--color-gray-200);*/
/*  border-radius: 18px;*/
/*  box-shadow:*/
/*    0 6px 18px -6px rgba(0,0,0,0.12),*/
/*    0 2px 8px -2px rgba(0,0,0,0.06);*/
/*  line-height: 1.75;*/
/*  font-size: 0.95rem;*/
/*  overflow: hidden;*/
/*  isolation: isolate;*/
/*}*/

/*.policy-content::before {*/
/*  content: "";*/
/*  position: absolute;*/
/*  inset: 0;*/
/*  background:*/
/*    radial-gradient(circle at 85% 12%, rgba(88,178,220,0.18), transparent 55%),*/
/*    radial-gradient(circle at 12% 85%, rgba(88,178,220,0.12), transparent 60%);*/
/*  opacity: .75;*/
/*  pointer-events: none;*/
/*  z-index: -1;*/
/*}*/

/*.policy-content::after {*/
/*  content: "";*/
/*  position: absolute;*/
/*  top: 0;*/
/*  left: 10%;*/
/*  width: 80%;*/
/*  height: 4px;*/
/*  background: linear-gradient(90deg,var(--color-primary) 0%, var(--color-primary-dark) 100%);*/
/*  border-radius: 0 0 4px 4px;*/
/*  opacity: .9;*/
/*}*/

/*!* 段落微調整 *!*/
/*.policy-content > p {*/
/*  margin: 0 0 1rem;*/
/*}*/

/*.policy-content > p:last-of-type {*/
/*  margin-bottom: 1.5rem;*/
/*}*/

/*!* リスト全体 *!*/
/*.policy-list {*/
/*  counter-reset: policy;*/
/*  list-style: none;*/
/*  margin: 2rem 0 2.25rem;*/
/*  padding: 0;*/
/*  display: grid;*/
/*  gap: 1.6rem;*/
/*}*/

/*!* 各項目カード *!*/
/*.policy-list > li {*/
/*  position: relative;*/
/*  counter-increment: policy;*/
/*  background: #fff;*/
/*  border: 1px solid var(--color-gray-200);*/
/*  border-radius: 16px;*/
/*  padding: 1.25rem 1.25rem 1.25rem 4.4rem;*/
/*  box-shadow: var(--shadow-sm);*/
/*  transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;*/
/*}*/

/*.policy-list > li:hover,*/
/*.policy-list > li:focus-within {*/
/*  border-color: var(--color-primary);*/
/*  box-shadow: 0 8px 22px -6px rgba(0,0,0,0.14), 0 4px 10px -4px rgba(0,0,0,0.08);*/
/*  transform: translateY(-3px);*/
/*}*/

/*!* 番号バッジ *!*/
/*.policy-list > li::before {*/
/*  content: counter(policy);*/
/*  position: absolute;*/
/*  top: 1.05rem;*/
/*  left: 1.2rem;*/
/*  width: 2.9rem;*/
/*  height: 2.9rem;*/
/*  display: flex;*/
/*  align-items: center;*/
/*  justify-content: center;*/
/*  background: linear-gradient(140deg,var(--color-primary) 0%, var(--color-primary-dark) 100%);*/
/*  color: #fff;*/
/*  font-weight: 700;*/
/*  font-size: 1.15rem;*/
/*  border-radius: 50%;*/
/*  box-shadow: 0 4px 14px -4px rgba(0,0,0,0.35);*/
/*  letter-spacing: .5px;*/
/*}*/

/*!* タイトル（最初の段落） *!*/
/*.policy-list > li > p:first-child {*/
/*  margin: 0 0 .4rem;*/
/*  font-weight: 700;*/
/*  font-size: 1.02rem;*/
/*  letter-spacing: .5px;*/
/*  color: var(--color-primary-dark);*/
/*  display: flex;*/
/*  align-items: center;*/
/*  gap: .5rem;*/
/*  position: relative;*/
/*}*/

/*.policy-list > li > p:first-child::before {*/
/*  content: "";*/
/*  width: 10px;*/
/*  height: 10px;*/
/*  background: linear-gradient(135deg,var(--color-primary) 0%, var(--color-primary-dark) 100%);*/
/*  border-radius: 3px;*/
/*  box-shadow: 0 0 0 2px rgba(88,178,220,0.18);*/
/*}*/

/*!* 2段落目以降 *!*/
/*.policy-list > li > p:not(:first-child) {*/
/*  margin: .4rem 0 0;*/
/*  font-size: .9rem;*/
/*  color: var(--color-gray-600);*/
/*}*/

/*!* フッター *!*/
/*.policy-footer {*/
/*  margin-top: 1.25rem;*/
/*  padding-top: 1.1rem;*/
/*  border-top: 1px dashed var(--color-gray-300);*/
/*  font-size: .82rem;*/
/*  color: var(--color-gray-500);*/
/*  line-height: 1.5;*/
/*}*/

/*.policy-footer p {*/
/*  margin: .25rem 0;*/
/*}*/

/*!* 小型端末調整 *!*/
/*@media (max-width: 640px) {*/
/*  .policy-list > li {*/
/*    padding: 1rem 1rem 1rem 3.6rem;*/
/*  }*/
/*  .policy-list > li::before {*/
/*    width: 2.35rem;*/
/*    height: 2.35rem;*/
/*    font-size: 1rem;*/
/*    top: .95rem;*/
/*    left: .85rem;*/
/*  }*/
/*  .policy-content {*/
/*    padding: 1.4rem 1.1rem 1.8rem;*/
/*  }*/
/*}*/

/* Cleanup additions: move inline styles into classes to remove HTML inline styles */
.company-name {
    margin-bottom: 0;
}

.mobile-contact {
    margin-right: var(--space-md);
}

.nav-container {
    padding: 1rem 0;
}

.hero-bg {
    background-color: var(--color-gray-700);
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-bg .hero-image, .hero-img {
    object-fit: cover;
    opacity: 0.9;
    width: 100%;
    height: 100%;
}

.article--spacious {
    margin-top: var(--space-3xl);
    margin-left: min(64px, 1.5rem);
    margin-right: min(64px, 1.5rem);
}

.carousel-placeholder {
    background-color: var(--color-gray-100);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
}

.lead-text {
    line-height: 1.7;
}

.greeting-margin {
    margin: 8px;
}

.text-right {
    text-align: right;
}

.policy-content {
    width: max(90%, max-content);
}

.policy-footer {
    display: inline-block;
    width: 100%;
    text-align: right;
}

/* レスポンシブデザイン */
@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-content {
        padding: var(--space-3xl);
    }

    .about-container .flex {
        flex-direction: row;
    }
}

@media (max-width: 767px) {
    .desktop-only {
        display: none;
    }

    .mobile-only {
        display: block;
    }

    .hero {
        margin-top: 4.2rem;
        height: 78vh;
    }

    .hero-content {
        width: calc(100% - 1.4rem);
        padding: 1.2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .about-container .flex {
        flex-direction: column;
    }
}

.policy-list > li {
    margin: 1.5rem 0;
}

/* Utility: max-width helper used to remove inline max-width */
.max-width-48rem {
    max-width: 48rem;
}

.hero-background {
    background-color: red;
    border-radius: var(--radius-lg);
}

.greeting-container {
    justify-content: space-around;
}