/* ===========================================================
   合同会社EraNext — PHPバージョン無料診断
   =========================================================== */

:root{
  --navy:#15314E;
  --navy-deep:#0F2439;
  --blue:#257AE7;
  --blue-dark:#1A62C4;
  --blue-light:#AFD0F5;
  --bg:#FFFFFF;
  --bg-tint:#EEF3FA;
  --border:#D6E2F2;
  --text:#1A1F36;
  --text-muted:#6B7794;
  --alert:#C0392B;
  --warn:#B4740F;
  --safe:#1E6B3C;
  --radius:8px;
  --shadow:0 2px 8px rgba(21,49,78,.08);
  --wrap:1080px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  font-family:"Noto Sans JP",system-ui,-apple-system,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}

img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-underline-offset:.2em}
a:hover{color:var(--blue-dark)}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:2px}

h1,h2,h3{line-height:1.45;margin:0;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.skip-link{position:absolute;left:-9999px;top:0;z-index:999;background:#fff;color:var(--navy);padding:12px 20px;font-weight:700}
.skip-link:focus{left:0}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px;width:100%}
.wrap-narrow{max-width:720px}

/* ---------- ボタン ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:12px 28px;
  border-radius:var(--radius);border:2px solid transparent;
  font-weight:700;font-size:16px;line-height:1.4;text-align:center;
  text-decoration:none;cursor:pointer;
  transition:background-color .15s ease,border-color .15s ease,color .15s ease;
}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue)}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff}
.btn-sm{min-height:42px;padding:8px 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed}

/* ---------- ヘッダー ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.logo img{width:auto;height:34px}
.header-actions{display:flex;align-items:center;gap:16px}
.header-tel{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--navy);font-weight:700;font-size:17px;text-decoration:none;
  min-height:44px;
}
.header-tel:hover{color:var(--blue)}

@media (max-width:767px){
  .header-inner{min-height:60px}
  .logo img{height:28px}
  .header-tel-num{display:none}
  .header-tel{padding:0 6px}
  .header-actions{gap:8px}
}

/* ---------- ヒーロー ---------- */
.hero{background:var(--navy);color:#fff;padding:72px 0 64px}
.hero-eyebrow{
  display:inline-block;margin:0 0 20px;padding:5px 14px;
  background:rgba(175,208,245,.16);border-radius:999px;
  color:var(--blue-light);font-size:13px;font-weight:700;letter-spacing:.04em;
}
.hero h1{font-size:clamp(28px,5vw,44px);letter-spacing:.01em;margin-bottom:24px}
.hero-lead{font-size:clamp(15px,2vw,18px);color:#D8E5F6;max-width:46em;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 24px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--blue-light)}
.hero-meta li{position:relative;padding-left:20px}
.hero-meta li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:9px;height:5px;border-left:2px solid var(--blue-light);border-bottom:2px solid var(--blue-light);
  transform:rotate(-45deg);
}
.br-sp{display:none}
@media (max-width:600px){
  .br-sp{display:inline}
  .hero{padding:48px 0 48px}
  .hero-cta .btn{width:100%}
}

/* ---------- セクション ---------- */
.section{padding:96px 0}
.section-tint{background:var(--bg-tint)}
.section h2{font-size:clamp(22px,3.5vw,32px);color:var(--navy);margin-bottom:16px}
.h2-tight{margin-bottom:12px}
.section .lead{font-size:16px;color:var(--text);max-width:52em;margin-bottom:40px}
@media (max-width:767px){.section{padding:64px 0}}

/* ---------- グリッド・カード ---------- */
.grid-3{display:grid;gap:24px;grid-template-columns:1fr;margin-top:32px}
.grid-2{display:grid;gap:24px;grid-template-columns:1fr;margin-top:8px}
.grid-2-gap{gap:40px}
@media (min-width:768px){
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-2{grid-template-columns:repeat(2,1fr)}
}

.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);
}
.card h3{font-size:18px;color:var(--navy);margin-bottom:10px}
.card p{font-size:15px;color:var(--text)}
.card-plain{box-shadow:none}
.card-tint{background:var(--bg-tint);border-color:var(--border);box-shadow:none}
.section-tint .card{box-shadow:none}

.icon-circle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:var(--navy);color:#fff;margin-bottom:16px;
}

.card.card-navy{background:var(--navy);border-color:var(--navy);color:#fff;box-shadow:none}
.card.card-navy h3,.section .card.card-navy h3{color:var(--blue-light)}
.card.card-navy p{color:#fff}
.card.card-navy .big-statement{font-size:clamp(19px,2.6vw,23px);font-weight:700;line-height:1.6;color:#fff;margin-bottom:16px}
.card.card-navy .card-navy-sub{font-size:14px;color:#C9DBF2}
.h3-alert{color:var(--alert)!important}
.h3-tight{margin-bottom:14px}

/* ---------- 表 ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin-bottom:24px}
.table-hint{display:none;font-size:13px;color:var(--text-muted);margin:0 0 8px}
@media (max-width:767px){.table-hint{display:block}}
.table{width:100%;border-collapse:collapse;background:#fff;font-size:15px;min-width:520px}
.table th,.table td{border:1px solid var(--border);padding:13px 16px;text-align:left;vertical-align:middle}
.table thead th{background:var(--navy);color:#fff;font-weight:700;font-size:14px}
.table tbody th{background:var(--bg-tint);font-weight:700;color:var(--navy);white-space:nowrap}
.section-tint .table tbody th{background:#E3EBF7}
.table-judge tbody th{width:9em}

.badge{display:inline-block;padding:3px 12px;border-radius:999px;font-size:13px;font-weight:700;white-space:nowrap}
.badge-safe{background:#E3F2E9;color:var(--safe);border:1px solid #BEDFCB}
.badge-warn{background:#FBF0DC;color:var(--warn);border:1px solid #EBD3A6}
.badge-alert{background:#FBE8E6;color:var(--alert);border:1px solid #EFC4BF}

.note{border-left:3px solid var(--blue);padding:4px 0 4px 18px;font-size:15px}
.note-sub{font-size:14px;color:var(--text-muted);margin-top:10px}

/* ---------- 出典 ---------- */
.sources{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px}
.section-tint .sources{background:#fff}
.sources-title{font-size:14px;font-weight:700;color:var(--navy);margin-bottom:10px}
.sources ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.sources li{font-size:14px;padding-left:18px;position:relative}
.sources li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--blue-light)}
.ext{font-size:.85em;margin-left:4px}

/* ---------- リスト ---------- */
.list-x,.list-check,.list-dash{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.list-x li,.list-check li,.list-dash li{position:relative;padding-left:30px;font-size:15px}
.list-x li::before{
  content:"×";position:absolute;left:4px;top:0;
  color:var(--alert);font-weight:700;font-size:17px;
}
.list-check li::before{
  content:"";position:absolute;left:4px;top:.55em;
  width:12px;height:7px;border-left:2.5px solid var(--blue);border-bottom:2.5px solid var(--blue);
  transform:rotate(-45deg);
}
.list-dash li::before{content:"";position:absolute;left:2px;top:.82em;width:14px;height:2px;background:var(--text-muted)}
/* 文章中のリストは前後に余白をとる */
.wrap-narrow .list-dash{margin:14px 0 20px}
.wrap-narrow h3{margin-top:36px}

/* ---------- サービス帯 ---------- */
.service-band{
  background:var(--navy);color:#fff;border-radius:var(--radius);
  padding:20px 26px;margin-bottom:40px;
}
.service-band p{font-size:clamp(15px,2vw,17px);font-weight:700;margin:0}
.section h3{font-size:17px;color:var(--navy);margin:28px 0 10px}
.section h3:first-child{margin-top:0}

/* ---------- ステップ ---------- */
.steps{list-style:none;margin:32px 0 0;padding:0;display:grid;gap:20px;grid-template-columns:1fr;counter-reset:none}
@media (min-width:768px){.steps{grid-template-columns:repeat(4,1fr);gap:20px}}
.step{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;position:relative;
}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:var(--blue);color:#fff;font-weight:700;font-size:15px;margin-bottom:14px;
}
.step h3{font-size:17px;color:var(--navy);margin:0 0 8px}
.step p{font-size:14px;margin-bottom:14px}
.step-time{display:inline-block;font-size:12px;font-weight:700;color:var(--text-muted);background:var(--bg-tint);padding:4px 12px;border-radius:999px}

/* ---------- 定義リスト ---------- */
.deflist{margin:32px 0 0;padding:0;border-top:1px solid var(--border)}
.deflist>div{display:grid;grid-template-columns:1fr;gap:2px;padding:18px 4px;border-bottom:1px solid var(--border)}
@media (min-width:768px){.deflist>div{grid-template-columns:16em 1fr;gap:24px;align-items:baseline}}
.deflist dt{font-weight:700;color:var(--navy);margin:0}
.deflist dd{margin:0;color:var(--text);font-size:15px}

/* ---------- ピル ---------- */
.pill{display:inline-block;padding:5px 16px;border-radius:999px;font-size:13px;font-weight:700;color:#fff;margin-bottom:14px}
.pill-blue{background:var(--blue)}
.pill-navy{background:var(--navy)}

/* ---------- 正直セクション ---------- */
.honest{
  border:2px solid var(--border);border-radius:var(--radius);
  padding:36px 32px;background:var(--bg-tint);
}
.honest .list-dash{margin:20px 0}
.honest-close{font-weight:700;color:var(--navy);margin-top:20px}
@media (max-width:600px){.honest{padding:28px 22px}}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;margin-top:32px}
.faq details{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.faq summary{
  padding:18px 52px 18px 22px;font-weight:700;font-size:16px;color:var(--navy);
  cursor:pointer;position:relative;list-style:none;min-height:44px;line-height:1.6;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:24px;top:50%;
  width:10px;height:10px;margin-top:-7px;
  border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq details[open] summary::after{transform:rotate(-135deg);margin-top:-2px}
.faq-body{padding:0 22px 20px;font-size:15px;border-top:1px solid var(--border);padding-top:16px}
@media (prefers-reduced-motion:reduce){.faq summary::after{transition:none}}

/* ---------- 会社情報 ---------- */
.company-dl{margin:24px 0 0;padding:0;border-top:1px solid var(--border)}
.company-dl>div{display:grid;grid-template-columns:1fr;gap:4px;padding:16px 4px;border-bottom:1px solid var(--border)}
@media (min-width:768px){.company-dl>div{grid-template-columns:10em 1fr;gap:24px}}
.company-dl dt{font-weight:700;color:var(--navy);margin:0;font-size:15px}
.company-dl dd{margin:0;font-size:15px}
address{font-style:normal}
.map-link{display:inline-block;margin-top:6px;font-size:14px}

/* ---------- フォーム ---------- */
.section-navy{background:var(--navy);color:#fff;padding:88px 0}
.h2-on-dark{color:#fff!important;margin-bottom:14px}
.lead-on-dark{color:#D3E2F5;font-size:15px;margin-bottom:36px}
.lead-on-dark a{color:#fff;font-weight:700}

.form{background:#fff;border-radius:var(--radius);padding:34px 32px;color:var(--text)}
@media (max-width:600px){.form{padding:26px 20px}.section-navy{padding:56px 0}}
.field{margin-bottom:20px}
.field label{display:block;font-weight:700;font-size:14px;color:var(--navy);margin-bottom:7px}
.field input,.field textarea{
  width:100%;padding:12px 14px;font-size:16px;font-family:inherit;line-height:1.6;
  border:1px solid #BCCBE0;border-radius:6px;background:#fff;color:var(--text);
  transition:border-color .15s ease;
}
.field input:focus,.field textarea:focus{border-color:var(--blue)}
.field textarea{resize:vertical;min-height:110px}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:var(--alert);background:#FEF8F7}

.req{display:inline-block;background:var(--alert);color:#fff;font-size:11px;padding:2px 8px;border-radius:3px;margin-left:6px;vertical-align:1px}
.opt{display:inline-block;background:#E4EAF2;color:var(--text-muted);font-size:11px;padding:2px 8px;border-radius:3px;margin-left:6px;vertical-align:1px}

.err{color:var(--alert);font-size:13px;margin:6px 0 0;min-height:0}
.err:empty{display:none}

.field-check{display:block;padding:16px;background:var(--bg-tint);border-radius:6px}
.field-check input{width:20px;height:20px;margin:0 8px 0 0;vertical-align:-4px;accent-color:var(--blue)}
.field-check label{display:inline;font-weight:400;font-size:15px;color:var(--text)}

.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.form-note{font-size:13px;color:var(--text-muted);text-align:center;margin-top:12px}
.form-status{margin-top:16px;padding:0;font-size:15px;border-radius:6px;text-align:center}
.form-status:empty{display:none}
.form-status.ok{background:#E3F2E9;color:var(--safe);border:1px solid #BEDFCB;padding:16px}
.form-status.ng{background:#FBE8E6;color:var(--alert);border:1px solid #EFC4BF;padding:16px}

/* ---------- フッター ---------- */
.site-footer{background:var(--navy-deep);color:#C9D7E8;padding:56px 0 28px;font-size:14px}
.footer-inner{display:grid;gap:28px;grid-template-columns:1fr;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12)}
@media (min-width:768px){.footer-inner{grid-template-columns:1fr 1fr;align-items:start}}
.footer-brand img{width:auto;height:36px;margin-bottom:12px}
.footer-biz{font-size:13px;color:#8FA6C0;margin:0}
.footer-info address{margin-bottom:8px}
.footer-info a{color:#fff}
.footer-links{margin-top:12px}
.copyright{margin:20px 0 0;font-size:12px;color:#7C92AC}

/* ---------- アニメーション ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1!important;transform:none!important;transition:none!important}
  .btn{transition:none}
}