/* ============================================
   CSS 変数（業種別配色を反映：RF 屋根工事）
   ============================================ */
:root {
    --color-primary: #1A3A5C;
    --color-accent: #E67E22;
    --color-text: #2C3E50;
    --color-background: #FFFFFF;
}

/* ============================================
   リセット & ベース
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.7;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   ヘッダー
   ============================================ */
.header {
    background-color: var(--color-primary);
    color: #fff;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    font-size: 1.2rem;
    font-weight: 700;
}

/* CTA ボタン（見た目のみ、cursor: pointer を入れない） */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-accent);
    color: #fff;
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 700;
}

.cta-button--header {
    font-size: 0.9rem;
}

.cta-button--large {
    font-size: 1.3rem;
    padding: 20px 40px;
}

.cta-label {
    font-size: 0.85em;
}

.cta-phone {
    font-size: 1.1em;
    letter-spacing: 0.05em;
}

/* ============================================
   メインビジュアル（業種別画像が未確定のためグラデーションフォールバック）
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #fff;
    padding: 100px 20px;
    text-align: center;
}

.hero-catchphrase {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 1.1rem;
}

/* ============================================
   セクション共通
   ============================================ */
.services,
.company,
.contact {
    padding: 80px 0;
}

.section-title {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--color-primary);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 15px auto 0;
}

/* ============================================
   サービス
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    text-align: center;
}

.service-icon {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 15px;
}

.service-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

/* trust_signals */
.trust-signals {
    margin-top: 60px;
    background-color: #f7f9fb;
    padding: 30px;
    border-radius: 8px;
}

.trust-title {
    text-align: center;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.trust-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
}

.trust-list li {
    padding: 12px 0 12px 30px;
    position: relative;
}

.trust-list li::before {
    content: '\f00c';  /* チェックマーク */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* ============================================
   会社概要
   ============================================ */
.company-table {
    width: 100%;
    border-collapse: collapse;
    max-width: 700px;
    margin: 0 auto;
}

.company-table th,
.company-table td {
    padding: 15px 20px;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

.company-table th {
    background-color: var(--color-primary);
    color: #fff;
    width: 30%;
}

/* ============================================
   お問い合わせ
   ============================================ */
.contact {
    background-color: var(--color-primary);
    color: #fff;
    text-align: center;
}

.contact .section-title {
    color: #fff;
}

.contact-message {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* ============================================
   提案デモバナー（右下固定、cursor: pointer なし）
   ============================================ */
.proposal-banner {
    position: fixed;
    bottom: 12px;
    right: 12px;
    background-color: rgba(0, 0, 0, 0.75);
    color: #fff;
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 0.75rem;
    max-width: 320px;
    z-index: 1000;
}

/* ============================================
   レスポンシブ（モバイルファースト → タブレット以上で調整）
   ============================================ */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        gap: 10px;
    }

    .hero-catchphrase {
        font-size: 1.5rem;
    }

    .cta-button--large {
        font-size: 1rem;
        padding: 15px 25px;
    }

    .proposal-banner {
        max-width: 90%;
        font-size: 0.7rem;
    }
}