/* サンプル精密株式会社 コーポレートサイト サンプル — 共通スタイル
   株式会社スマートマッチング制作の Web 制作サンプル
   インスパイア: 中小製造業の堅実トーン (青・グレー基調)
*/

:root {
    --c-primary: #1e40af;
    --c-primary-dark: #1e3a8a;
    --c-primary-soft: #dbeafe;
    --c-accent: #0891b2;
    --c-warn: #c2410c;
    --c-text: #1f2937;
    --c-text-soft: #4b5563;
    --c-text-muted: #6b7280;
    --c-border: #e5e7eb;
    --c-border-strong: #9ca3af;
    --c-bg: #ffffff;
    --c-bg-soft: #f8fafc;
    --c-bg-alt: #f1f5f9;
    --c-steel: #334155;
    --c-charcoal: #1e293b;

    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08);

    --radius: 8px;
    --radius-sm: 4px;
    --maxw: 1180px;
    --header-h: 72px;
    --sample-bar-h: 36px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
    color: var(--c-text);
    background: var(--c-bg);
    line-height: 1.8;
    font-size: 15.5px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; height: auto; }
a { color: var(--c-primary); text-decoration: none; transition: color .15s; }
a:hover { color: var(--c-primary-dark); }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-sm { padding: 56px 0; }
@media (max-width: 720px) { .section { padding: 56px 0; } .section-sm { padding: 40px 0; } }

/* --- 制作サンプル告知バー --- */
.smartmatching-sample-bar {
    position: sticky; top: 0; z-index: 9999;
    background: var(--c-charcoal); color: #fff;
    font-size: 13px; line-height: 1.5;
    padding: 8px 16px;
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: wrap; gap: 8px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}
.smartmatching-sample-bar strong { color: #fde047; margin-right: 6px; }
.smartmatching-sample-bar a {
    color: #fff; text-decoration: underline;
    margin-left: 12px; white-space: nowrap;
}
.smartmatching-sample-bar a:hover { color: #fde047; }
.smartmatching-sample-bar .sm-cta {
    background: var(--c-primary); border: none;
    padding: 4px 12px; border-radius: 4px;
    text-decoration: none; font-weight: 500;
}
.smartmatching-sample-bar .sm-cta:hover { background: var(--c-primary-dark); color: #fff; }
@media (max-width: 640px) {
    .smartmatching-sample-bar { font-size: 12px; }
    .smartmatching-sample-bar a { margin-left: 8px; }
}

/* --- グローバルヘッダ --- */
.site-header {
    position: sticky; top: 36px; z-index: 90;
    background: rgba(255,255,255,0.97); backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--c-border);
}
@media (max-width: 640px) { .site-header { top: 64px; } }
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    height: var(--header-h);
    gap: 24px;
}
.site-logo {
    display: flex; align-items: center; gap: 12px;
    color: var(--c-text); font-weight: 700; font-size: 17px;
}
.site-logo .mark {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
    border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 18px;
    letter-spacing: -0.02em;
}
.site-logo small {
    display: block; font-size: 11px;
    color: var(--c-text-muted); font-weight: 500;
    letter-spacing: 0.05em;
}
.gnav { display: flex; align-items: center; gap: 4px; list-style: none; }
.gnav li { position: relative; }
.gnav > li > a {
    display: inline-block; padding: 12px 14px;
    color: var(--c-text); font-size: 14px; font-weight: 500;
    border-bottom: 2px solid transparent;
}
.gnav > li > a:hover, .gnav > li.active > a {
    color: var(--c-primary); border-bottom-color: var(--c-primary);
}
.gnav .submenu {
    display: none; position: absolute; top: 100%; left: 0;
    background: #fff; min-width: 240px;
    border: 1px solid var(--c-border); border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px 0; margin-top: -1px;
    list-style: none;
}
.gnav li:hover .submenu, .gnav li:focus-within .submenu { display: block; }
.gnav .submenu a {
    display: block; padding: 10px 18px;
    color: var(--c-text); font-size: 13.5px;
}
.gnav .submenu a:hover { background: var(--c-bg-alt); color: var(--c-primary); }
.gnav .cta-btn {
    margin-left: 8px; padding: 10px 18px;
    background: var(--c-primary); color: #fff;
    border-radius: var(--radius-sm); font-size: 13.5px; font-weight: 600;
    border-bottom: 0;
}
.gnav .cta-btn:hover { background: var(--c-primary-dark); color: #fff; border-bottom: 0; }

.nav-toggle {
    display: none; background: none; border: none;
    font-size: 24px; color: var(--c-text); padding: 6px;
}
@media (max-width: 980px) {
    .nav-toggle { display: block; }
    .gnav {
        display: none; position: absolute;
        top: 100%; left: 0; right: 0;
        background: #fff; flex-direction: column; align-items: stretch;
        border-bottom: 1px solid var(--c-border);
        padding: 12px 0; gap: 0;
    }
    .gnav.open { display: flex; }
    .gnav > li > a {
        padding: 14px 24px; border-bottom: 1px solid var(--c-border);
    }
    .gnav .submenu { position: static; box-shadow: none; border: none; padding-left: 16px; display: block; background: var(--c-bg-soft); }
    .gnav .cta-btn { margin: 12px 24px; text-align: center; }
}

/* --- パンくず --- */
.breadcrumbs {
    background: var(--c-bg-soft);
    border-bottom: 1px solid var(--c-border);
    padding: 12px 0; font-size: 13px;
}
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 4px; }
.breadcrumbs li:not(:last-child)::after {
    content: '›'; margin: 0 8px; color: var(--c-text-muted);
}
.breadcrumbs a { color: var(--c-text-soft); }
.breadcrumbs li:last-child { color: var(--c-text); font-weight: 500; }

/* --- ページヘッダ (サブページ) --- */
.page-hero {
    background: linear-gradient(135deg, var(--c-bg-alt) 0%, var(--c-primary-soft) 100%);
    padding: 56px 0 48px;
    position: relative; overflow: hidden;
}
.page-hero::before {
    content: ''; position: absolute; top: 0; right: -120px;
    width: 380px; height: 380px;
    background: radial-gradient(circle, rgba(30, 64, 175, 0.08), transparent 70%);
    border-radius: 50%;
}
.page-hero h1 {
    font-size: 36px; font-weight: 700; margin-bottom: 12px;
    color: var(--c-text); position: relative;
}
.page-hero .eyebrow {
    display: inline-block; font-size: 13px; font-weight: 600;
    color: var(--c-primary); letter-spacing: 0.15em;
    margin-bottom: 12px;
}
.page-hero p { color: var(--c-text-soft); font-size: 15px; max-width: 720px; }
@media (max-width: 720px) { .page-hero h1 { font-size: 26px; } }

/* --- セクション共通 --- */
.section-title { font-size: 30px; font-weight: 700; margin-bottom: 12px; line-height: 1.4; }
.section-title .accent { color: var(--c-primary); }
.section-lead { font-size: 15.5px; color: var(--c-text-soft); max-width: 720px; margin: 0 auto 40px; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head .eyebrow {
    display: inline-block; font-size: 12px; font-weight: 600;
    color: var(--c-primary); letter-spacing: 0.2em; margin-bottom: 10px;
}
@media (max-width: 720px) { .section-title { font-size: 22px; } }

/* --- ボタン --- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 13px 28px; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 14.5px;
    transition: transform .15s, background .15s, color .15s;
    border: 2px solid transparent;
}
.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover { background: var(--c-primary-dark); color: #fff; transform: translateY(-1px); }
.btn-secondary { background: #fff; color: var(--c-primary); border-color: var(--c-primary); }
.btn-secondary:hover { background: var(--c-primary-soft); color: var(--c-primary-dark); }
.btn-ghost { background: transparent; color: var(--c-text); border-color: var(--c-border-strong); }
.btn-ghost:hover { background: var(--c-bg-alt); color: var(--c-primary); }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* --- カード --- */
.card {
    background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius);
    padding: 28px 24px;
    transition: border-color .15s, box-shadow .15s, transform .15s;
}
.card:hover { border-color: var(--c-primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }

/* --- グリッド --- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
    .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* --- テーブル --- */
.table-default {
    width: 100%; border-collapse: collapse;
    font-size: 14px; background: #fff;
}
.table-default th, .table-default td {
    padding: 14px 16px; text-align: left;
    border-bottom: 1px solid var(--c-border);
}
.table-default th {
    background: var(--c-bg-soft); color: var(--c-text-soft);
    font-weight: 600; width: 24%;
}
@media (max-width: 600px) {
    .table-default th, .table-default td { display: block; width: 100%; padding: 8px 12px; }
    .table-default th { background: var(--c-bg-alt); border-bottom: none; }
    .table-default td { padding-bottom: 16px; }
}

/* --- フォーム --- */
.form-row { margin-bottom: 20px; }
.form-row label {
    display: block; font-size: 14px; font-weight: 600;
    margin-bottom: 8px; color: var(--c-text);
}
.form-row label .req {
    background: var(--c-warn); color: #fff;
    font-size: 11px; font-weight: 500;
    padding: 2px 8px; border-radius: 3px; margin-left: 8px;
}
.form-row input[type="text"], .form-row input[type="email"], .form-row input[type="tel"], .form-row input[type="file"], .form-row select, .form-row textarea {
    width: 100%; padding: 12px 14px;
    font-size: 14.5px; font-family: inherit;
    background: #fff;
    border: 1px solid var(--c-border); border-radius: var(--radius-sm);
    transition: border-color .15s, box-shadow .15s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15);
    outline: none;
}
.form-row textarea { resize: vertical; min-height: 140px; }
.form-row .help { font-size: 12px; color: var(--c-text-muted); margin-top: 4px; }

/* --- CTA バンド --- */
.cta-band {
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
    color: #fff; padding: 56px 0; text-align: center;
}
.cta-band h2 { font-size: 28px; font-weight: 700; margin-bottom: 12px; color: #fff; }
.cta-band p { color: rgba(255, 255, 255, 0.9); margin-bottom: 28px; }
.cta-band .btn-primary {
    background: #fff; color: var(--c-primary);
}
.cta-band .btn-primary:hover { background: var(--c-bg); color: var(--c-primary-dark); }
.cta-band .btn-secondary {
    background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.5);
}
.cta-band .btn-secondary:hover { background: rgba(255, 255, 255, 0.1); color: #fff; }

/* --- フッタ --- */
.site-footer {
    background: var(--c-charcoal); color: #cbd5e1;
    padding: 56px 0 24px; font-size: 13.5px;
}
.footer-grid {
    display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 36px; margin-bottom: 36px;
}
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
.footer-brand p { font-size: 13px; line-height: 1.85; color: #94a3b8; }
.footer-brand .addr { margin-top: 12px; font-size: 12.5px; color: #94a3b8; }
.footer-col h4 {
    color: #fff; font-size: 13px; font-weight: 600;
    margin-bottom: 14px; letter-spacing: 0.05em;
}
.footer-col ul { list-style: none; }
.footer-col li { padding: 4px 0; }
.footer-col a { color: #cbd5e1; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
    border-top: 1px solid #475569; padding-top: 20px;
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
    font-size: 12px; color: #94a3b8;
}
.footer-bottom a { color: #cbd5e1; }
.footer-sample-note {
    background: rgba(253, 224, 71, 0.08);
    color: #fde047; padding: 12px 16px; border-radius: var(--radius-sm);
    font-size: 12.5px; margin-top: 24px;
    border-left: 3px solid #fde047;
}

/* --- ユーティリティ --- */
.text-center { text-align: center; }
.mt-md { margin-top: 24px; }
.mb-md { margin-bottom: 24px; }
.mt-lg { margin-top: 48px; }
.mb-lg { margin-bottom: 48px; }
.bg-alt { background: var(--c-bg-alt); }
.bg-soft { background: var(--c-bg-soft); }
.pill {
    display: inline-block; background: var(--c-primary-soft);
    color: var(--c-primary-dark); font-size: 11px; font-weight: 600;
    padding: 3px 10px; border-radius: 20px;
    letter-spacing: 0.05em;
}
.pill-accent { background: rgba(8, 145, 178, 0.12); color: var(--c-accent); }
.pill-warn { background: rgba(194, 65, 12, 0.1); color: var(--c-warn); }