/* ============================================
   建設・工事系テンプレート
   カラー: チャコール (#2D2D2D) × オレンジ (#E05A00)
   フォント: Barlow + Noto Sans JP
   ※ --color-accent を変えると配色変更可
============================================ */

:root {
    --color-accent: #E05A00;
    --color-accent-dark: #b84800;
    --color-accent-pale: #fff0e6;
    --color-main: #2D2D2D;
    --color-dark: #1b1b1a;
    --color-text: #333;
    --color-text-sub: #666;
    --color-text-note: #888888;
    --color-border: #e0e0e0;
    --color-light: #F5F2EE;
    --color-white: #FFFFFF;
    --font-en: 'Barlow', sans-serif;
    --font-ja: 'Noto Sans JP', sans-serif;
    --max-width: 1080px;
    --header-h: 72px;
    --section-pad: 88px 24px;
    --radius: 2px;
    --nav-lang: en;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-ja);
    color: var(--color-text);
    background: #fff;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--section-pad);
}
.bg-dark { background: var(--color-dark); }
.bg-light { background: var(--color-light); }

/* ラベル */
.label {
    font-family: var(--font-en);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 5px;
    color: var(--color-accent);
    text-transform: uppercase;
    display: block;
    margin-bottom: 12px;
}
.label-accent { color: var(--color-accent); }
.label-light { color: rgba(255,255,255,0.5); }

/* セクション共通 */
section[id] {
    scroll-margin-top: var(--header-h);
}
.section-head { margin-bottom: 52px; }
.section-head h2 {
    font-family: var(--font-ja);
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--color-main);
    line-height: 1.45;
    margin-bottom: 10px;
}
.section-head h2.light { color: #fff; }
.section-lead { font-size: 0.88rem; color: var(--color-text-sub); }

/* ============================================
   ヘッダー
============================================ */
.header {
    position: fixed;
    top: 0; width: 100%;
    z-index: 200;
    background: rgba(255,255,255,0.97);
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.header.scrolled {
    border-bottom-color: var(--color-accent);
    box-shadow: 0 3px 20px rgba(0,0,0,0.08);
}
.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo {
    font-family: var(--font-ja);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-main);
    letter-spacing: 1px;
}
.logo img { height: 38px; width: auto; }

.nav ul { display: flex; list-style: none; gap: 22px; align-items: center; }
.nav a {
    font-family: var(--font-ja);
    font-size: 0.78rem;
    font-weight: 400;
    color: var(--color-text-sub);
    transition: color 0.2s;
}
.nav a:hover { color: var(--color-accent); }

/* data属性からナビテキストを表示（デフォルト：英語） */
.nav a::before,
.footer-nav a::before {
    content: attr(data-ja);
}

.nav-cta {
    padding: 9px 20px;
    background: var(--color-accent) !important;
    color: #fff !important;
    font-weight: 700 !important;
    border-radius: var(--radius);
    transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--color-accent-dark) !important; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--color-main);
    transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* ============================================
   ① ヒーロー
============================================ */
.sec-hero {
    height: 88vh;
    min-height: 580px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    color: #fff;
    padding-top: var(--header-h);
    overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {
    position: absolute; inset: 0; z-index: 1;
    background: linear-gradient(
        105deg,
        rgba(20,15,10,0.82) 0%,
        rgba(20,15,10,0.55) 55%,
        rgba(20,15,10,0.2) 100%
    );
}
.hero-content {
    position: relative; z-index: 2;
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: 40px 40px 0;
}
.hero-tag {
    font-family: var(--font-en);
    font-size: 0.72rem;
    letter-spacing: 5px;
    color: var(--color-accent);
    text-transform: uppercase;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.hero-tag::before {
    content: '';
    display: block;
    width: 36px;
    height: 2px;
    background: var(--color-accent);
}
.sec-hero h1 {
    font-family: var(--font-ja);
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 700;
    line-height: 1.45;
    margin-bottom: 20px;
    letter-spacing: 1px;
}
.hero-lead {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.78);
    margin-bottom: 36px;
    line-height: 1.85;
    max-width: 500px;
}
.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: var(--color-accent);
    color: #fff;
    font-family: var(--font-ja);
    font-size: 0.9rem;
    font-weight: 700;
    border-radius: var(--radius);
    transition: background 0.25s, transform 0.2s;
    letter-spacing: 1px;
}
.btn-hero:hover { background: var(--color-accent-dark); transform: translateY(-2px); }

/* ヒーローバッジ */
.hero-badges {
    position: relative; z-index: 2;
    width: 100%;
    background: color-mix(in srgb, var(--color-accent) 92%, transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 0;
    margin-top: auto;
}
.badge-item {
    padding: 20px 48px;
    text-align: center;
    color: #fff;
}
.badge-item strong {
    display: block;
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -1px;
}
.badge-item strong span { font-size: 1rem; font-weight: 400; margin-left: 2px; }
.badge-item p { font-size: 0.72rem; color: rgba(255,255,255,0.82); margin-top: 4px; letter-spacing: 1px; }
.badge-sep { width: 1px; height: 40px; background: rgba(255,255,255,0.3); }

/* ============================================
   ② ABOUT US
============================================ */
.sec-about .container { padding: var(--section-pad); }
.about-lead {
    font-size: 0.95rem;
    color: var(--color-text-sub);
    max-width: 760px;
    margin: 0 auto 56px;
    text-align: center;
    line-height: 1.95;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
}
.feature-card {
    background: #fff;
    padding: 40px 32px;
    position: relative;
    transition: background 0.25s;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover { background: var(--color-accent-pale); }
.feature-num {
    font-family: var(--font-en);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-accent);
    opacity: 0.25;
    line-height: 1;
    margin-bottom: 16px;
    letter-spacing: -2px;
}
.feature-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-main);
    margin-bottom: 12px;
    line-height: 1.55;
}
.feature-card p { font-size: 0.84rem; color: var(--color-text-sub); line-height: 1.85; }

/* ============================================
   ③ SERVICE
============================================ */
.sec-service .container { padding: var(--section-pad); }
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--color-text);
}
.service-card {
    background: var(--color-main);
    overflow: hidden;
    position: relative;
}
.service-img { overflow: hidden; }
.service-img img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    filter: brightness(0.55) saturate(0.7);
    transition: transform 0.55s ease, filter 0.4s;
}
.service-card:hover .service-img img {
    transform: scale(1.05);
    filter: brightness(0.65) saturate(0.9);
}
.service-body { padding: 28px 28px 32px; }
.service-num {
    font-family: var(--font-en);
    font-size: 0.65rem;
    letter-spacing: 3px;
    color: var(--color-accent);
    display: block;
    margin-bottom: 10px;
}
.service-body h3 {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
    line-height: 1.5;
}
.service-body p { font-size: 0.82rem; color: rgba(255,255,255,0.65); line-height: 1.8; }
.service-price {
    display: inline-block;
    margin-top: 14px;
    font-size: 0.78rem;
    color: var(--color-accent);
    border-top: 1px solid color-mix(in srgb, var(--color-accent) 40%, transparent);
    padding-top: 10px;
    width: 100%;
}

/* ============================================
   ④ 代表メッセージ
============================================ */
.sec-greeting .container { padding: var(--section-pad); }
.greeting-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 72px;
    align-items: start;
}
.greeting-img img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 16px;
}
.greeting-img-label {
    padding: 16px 0 16px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 14px;
}
.ceo-title { font-size: 0.72rem; color: var(--color-text-sub); margin-bottom: 4px; }
.ceo-name { font-size: 1.1rem; font-weight: 700; color: var(--color-main); letter-spacing: 2px; }
.ceo-career { font-size: 0.78rem; color: var(--color-text-sub); line-height: 1.75; }
.career-license { margin-top: 6px; color: var(--color-accent); font-size: 0.75rem; }

.greeting-text h2 {
    font-size: clamp(1.3rem, 2.8vw, 1.9rem);
    font-weight: 700;
    color: var(--color-main);
    line-height: 1.55;
    margin-bottom: 24px;
}
.greeting-lead {
    font-size: 0.92rem;
    color: var(--color-text-sub);
    line-height: 1.95;
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--color-border);
}
.greeting-quote {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.95;
    padding-left: 20px;
    border-left: 3px solid var(--color-accent);
    font-style: normal;
}

/* ============================================
   ⑤ 施工の流れ
============================================ */
.sec-flow .container { padding: var(--section-pad); }
.flow-chart {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 700px;
    margin: 0 auto;
}
.flow-step {
    display: flex;
    align-items: center;
    gap: 28px;
    background: #fff;
    border: 1px solid var(--color-border);
    padding: 28px 32px;
    transition: border-color 0.25s, box-shadow 0.25s;
}
.flow-step:hover {
    border-color: var(--color-accent);
    box-shadow: 4px 0 0 var(--color-accent) inset;
}
.flow-icon {
    width: 52px;
    height: 52px;
    background: var(--color-main);
    color: #fff;
    font-family: var(--font-en);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 1px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.25s;
}
.flow-step:hover .flow-icon { background: var(--color-accent); }
.flow-icon.free { background: var(--color-accent); }
.flow-body h3 { font-size: 0.95rem; font-weight: 700; color: var(--color-main); margin-bottom: 4px; }
.flow-body p { font-size: 0.82rem; color: var(--color-text-sub); display: flex; align-items: center; gap: 8px; }
.free-badge {
    display: inline-block;
    background: var(--color-accent);
    color: #fff;
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 2px;
    font-weight: 700;
    letter-spacing: 1px;
}
.flow-arrow {
    text-align: center;
    color: var(--color-accent);
    font-size: 1.2rem;
    padding: 4px 0;
    opacity: 0.5;
}

/* ============================================
   ⑥ 実績
============================================ */
.sec-results .container { padding: var(--section-pad); }
.works-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 52px;
}
.work-img { overflow: hidden; border-radius: var(--radius); margin-bottom: 16px; }
.work-img img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    transition: transform 0.45s ease;
}
.work-item:hover .work-img img { transform: scale(1.04); }
.work-tag {
    display: inline-block;
    font-size: 0.65rem;
    letter-spacing: 2px;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 3px 10px;
    margin-bottom: 10px;
}
.work-body h3 { font-size: 0.92rem; font-weight: 700; margin-bottom: 8px; color: var(--color-main); }
.work-body p { font-size: 0.8rem; color: var(--color-text-sub); line-height: 1.75; }

.tools-row {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 28px;
    background: var(--color-light);
    border-radius: var(--radius);
    flex-wrap: wrap;
}
.tools-label {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--color-main);
    white-space: nowrap;
}
.tools-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tool-tag {
    font-size: 0.75rem;
    padding: 5px 14px;
    background: #fff;
    border: 1px solid var(--color-border);
    color: var(--color-text-sub);
    border-radius: 2px;
}

/* ============================================
   ⑦ 会社概要
============================================ */
.sec-company .container { padding: var(--section-pad); }
.company-inner {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 48px;
    align-items: start;
}
.info-table dl { border-top: 1px solid var(--color-border); }
.info-table dt, .info-table dd {
    padding: 14px 8px;
    font-size: 0.87rem;
    border-bottom: 1px solid var(--color-border);
    line-height: 1.7;
}
.info-table dt {
    float: left; clear: left;
    width: 150px;
    font-weight: 700;
    color: var(--color-main);
    font-size: 0.82rem;
}
.info-table dd { margin-left: 150px; color: var(--color-text-sub); }
.map-wrap {
    height: 380px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
}
.map-wrap iframe { width: 100%; height: 100%; }

/* ============================================
   ⑧ お問い合わせ
============================================ */
.sec-cta {
    background: var(--color-main);
    padding: 88px 24px;
    text-align: center;
}
.contact-inner { max-width: var(--max-width); margin: 0 auto; }
.contact-inner h2 {
    font-size: clamp(1.4rem, 3vw, 2.1rem);
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.contact-lead { font-size: 0.88rem; color: rgba(255,255,255,0.5); margin-bottom: 48px; line-height: 1.9; }

.contact-cols {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

/* 電話 */
.contact-tel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: #fff;
    transition: opacity 0.2s;
    pointer-events: none;
    cursor: default;
}
@media (max-width: 768px) {
    .contact-tel {
        pointer-events: auto;
        cursor: pointer;
    }
    .contact-tel:hover { opacity: 0.82; }
}
.tel-icon { font-size: 1.4rem; }
.tel-label { font-size: 0.68rem; letter-spacing: 2px; color: rgba(255,255,255,0.5); font-family: var(--font-en); }
.tel-num {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 1;
    color: #fff;
}
.tel-hour { font-size: 0.72rem; color: rgba(255,255,255,0.4); margin-top: 4px; }

.contact-divider {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: rgba(255,255,255,0.2);
    letter-spacing: 2px;
    align-self: center;
}

/* メール難読化エリア */
.cta-mail-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}
.mail-label { font-size: 0.68rem; letter-spacing: 2px; color: rgba(255,255,255,0.5); font-family: var(--font-en); }
.email-display {
    min-height: 1.4rem;
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 10px 24px;
    border-radius: 4px;
    transition: background 0.2s;
}
.email-display:hover,
.email-display:active {
    background: var(--color-accent-dark);
}
.cta-mail-hint { font-size: 0.75rem; color: rgba(255,255,255,0.4); line-height: 1.7; text-align: center; }


/* ============================================
   フッター
============================================ */
.footer {
    background: var(--color-dark);
    padding: 64px 24px;
    text-align: center;
}
.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}
.footer-sns {
    display: flex;
    gap: 16px;
    justify-content: center;
}
.sns-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    transition: background 0.2s;
}
.sns-link:hover { background: rgba(255,255,255,0.22); }
.sns-icon { width: 18px; height: 18px; filter: brightness(0) invert(1); }
.footer-logo {
    font-family: var(--font-en);
    font-size: 1.4rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.82);
    letter-spacing: 4px;
}
.footer-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px 25px;
}
.footer-nav a {
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.42);
    transition: color 0.2s;
}
.footer-nav a:hover { color: var(--color-accent); }
.copyright {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.22);
    letter-spacing: 1px;
}

/* ============================================
   レスポンシブ
============================================ */
@media (max-width: 900px) {
    .features-grid { grid-template-columns: 1fr; gap: 1px; }
    .service-grid { grid-template-columns: 1fr; gap: 1px; }
    .works-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .company-inner { grid-template-columns: 1fr; }
    .map-wrap { height: 280px; }
    .greeting-grid { grid-template-columns: 240px 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    :root { --section-pad: 64px 20px; }

    .hamburger { display: flex; }
    .nav {
        position: fixed;
        top: var(--header-h); right: -100%;
        width: min(300px, 80vw);
        height: calc(100vh - var(--header-h));
        background: var(--color-main);
        padding: 40px 28px;
        transition: right 0.35s ease;
        z-index: 150;
        overflow-y: auto;
    }
    .nav.open { right: 0; }
    .nav ul { flex-direction: column; gap: 24px; }
    .nav a { font-size: 0.95rem; color: rgba(255,255,255,0.8); }
    .nav a:hover { color: var(--color-accent); }
    .nav-cta { background: var(--color-accent) !important; display: inline-block; }

    .sec-hero { height: auto; min-height: 75vh; }
    .hero-content { padding: 30px 20px; }
    .sec-hero h1 { font-size: 1.85rem; }
    .hero-badges { flex-wrap: wrap; }
    .badge-item { padding: 16px 28px; }
    .badge-sep { display: none; }

    .greeting-grid { grid-template-columns: 1fr; gap: 36px; }
    .greeting-img {
        display: grid;
        grid-template-columns: 140px 1fr;
        gap: 20px;
        align-items: start;
    }
    .greeting-img img { aspect-ratio: 1/1; margin-bottom: 0; }

    .flow-step { padding: 20px 24px; gap: 20px; }

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

    .info-table dt { float: none; width: auto; border-bottom: none; padding-bottom: 2px; }
    .info-table dd { margin-left: 0; padding-top: 0; }

    .contact-cols { flex-direction: column; gap: 32px; align-items: center; }

    .footer { padding: 48px 24px; }
    .footer-nav { flex-direction: column; gap: 20px; }
}

@media (max-width: 480px) {
    .sec-hero h1 { font-size: 1.55rem; }
    .tel-num { font-size: 1.5rem; }
    .greeting-img { grid-template-columns: 1fr; }
}