/*
Theme Name: やさしいiPhone解説
Theme URI: https://example.com
Author: Wakaru iPhone
Description: 初心者・シニア向けiPhone解説サイトのWordPressテーマ
Version: 2.0
Text Domain: wakaru-iphone
*/

:root{--blue:#007aff;--bg:#f5f9ff;--ink:#1d1d1f;--line:#d9e7f7;--muted:#667085;--shadow:0 10px 28px rgba(0,64,128,.08)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Noto Sans JP",Arial,sans-serif;color:var(--ink);line-height:1.8;font-size:17px}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto}

/* HEADER */
.header{position:sticky;top:0;background:rgba(255,255,255,.95);z-index:100;border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.header-inner{max-width:1180px;margin:auto;padding:14px 20px;display:flex;justify-content:space-between;align-items:center;gap:14px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:48px;height:48px;border-radius:16px;background:linear-gradient(135deg,#007aff,#66c7ff);color:white;display:grid;place-items:center;font-size:1.6rem}
.logo-title{font-weight:900;line-height:1.3}
.logo-title span{display:block;color:var(--muted);font-size:.75rem}
.nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.nav a{background:#edf6ff;color:#005ecb;font-weight:800;padding:8px 12px;border-radius:999px;font-size:.88rem;transition:.15s}
.nav a:hover{background:#007aff;color:#fff}

/* HERO */
.hero{background:linear-gradient(135deg,#fff,#edf6ff);border-bottom:1px solid var(--line)}
.hero-inner{max-width:1180px;margin:auto;padding:54px 20px;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.badge{display:inline-block;background:#fff;color:#005ecb;border:1px solid var(--line);border-radius:999px;padding:7px 15px;font-weight:900}
.hero h1{font-size:clamp(2rem,4.6vw,3.7rem);line-height:1.22;margin:18px 0}
.hero h1 em{font-style:normal;color:var(--blue)}
.btn{display:inline-block;background:var(--blue);color:white;border-radius:999px;padding:12px 18px;font-weight:900;margin-right:8px;transition:.15s}
.btn:hover{background:#005ecb}

/* HERO CARD */
.hero-card{position:relative;overflow:hidden;padding:30px;text-align:left;background:linear-gradient(145deg,#ffffff 0%,#f1f8ff 54%,#eaf5ff 100%);border:1px solid #cfe6ff;border-radius:22px;box-shadow:0 22px 50px rgba(0,122,255,.16)}
.hero-card:before{content:"";position:absolute;right:-70px;top:-80px;width:210px;height:210px;border-radius:50%;background:rgba(0,122,255,.12)}
.hero-card:after{content:"";position:absolute;left:-55px;bottom:-70px;width:180px;height:180px;border-radius:50%;background:rgba(255,149,0,.12)}
.hero-card-label{position:relative;z-index:1;display:inline-flex;align-items:center;gap:7px;background:#fff;color:#005ecb;border:1px solid #cfe6ff;border-radius:999px;padding:6px 14px;font-weight:900;font-size:.88rem;box-shadow:0 8px 18px rgba(0,94,203,.08)}
.hero-card-label:before{content:"✓";display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:#007aff;color:#fff;font-size:.75rem}
.hero-card-main{position:relative;z-index:1;display:grid;grid-template-columns:190px 1fr;gap:24px;align-items:center;margin-top:18px}
.hero-card .phone{width:176px;height:318px;background:linear-gradient(145deg,#111,#3b3f49);border-radius:40px;margin:0;padding:13px;box-shadow:0 18px 35px rgba(16,35,64,.24),inset 0 0 0 2px rgba(255,255,255,.08)}
.hero-card .screen{height:100%;background:linear-gradient(180deg,#f8fcff 0%,#dff1ff 100%);border-radius:30px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--blue);font-size:3.3rem;gap:12px;text-align:center;line-height:1.35}
.screen-apple{line-height:1}
.screen-text{display:block;color:#164269;font-size:.92rem;font-weight:900;background:rgba(255,255,255,.74);border-radius:16px;padding:9px 12px;box-shadow:0 7px 16px rgba(0,122,255,.1)}
.hero-card-info h3{font-size:1.35rem;line-height:1.45;margin:0 0 10px;color:#10233f}
.hero-card-info p{margin:0 0 12px;color:#486074;font-weight:700}
.hero-card-info ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.hero-card-info li{position:relative;background:rgba(255,255,255,.82);border:1px solid #d9ebff;border-radius:14px;padding:8px 12px 8px 34px;font-weight:900;color:#164269}
.hero-card-info li:before{content:"";position:absolute;left:13px;top:50%;width:9px;height:9px;border-radius:50%;background:#ff9500;transform:translateY(-50%)}
.hero-card-bottom{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.hero-card-bottom span{background:#fff;border:1px solid #dbeeff;color:#005ecb;border-radius:999px;padding:6px 11px;font-size:.82rem;font-weight:900}

/* MAIN LAYOUT */
.main{max-width:1180px;margin:42px auto 64px;padding:0 20px;display:grid;grid-template-columns:1fr 320px;gap:28px}
.section{margin-bottom:40px}
.section-title{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.section-title h2{margin:0;font-size:1.45rem}
.section-title:after{content:"";height:2px;background:var(--line);flex:1}

/* GRID */
.grid{display:grid;gap:14px}
.cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}

/* RECOMMEND */
.recommend-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.recommend-card{display:flex;flex-direction:row;align-items:center;gap:12px;padding:12px;border-radius:14px;background:#fff;border:1px solid var(--line);box-shadow:0 5px 14px rgba(0,64,128,.04);text-decoration:none;position:relative;transition:.18s}
.recommend-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.recommend-card:before{content:attr(data-num);position:absolute;left:8px;top:8px;background:#ff9500;color:white;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-weight:900;font-size:.75rem;z-index:1}
.recommend-card img{width:90px;height:68px;object-fit:cover;border-radius:10px;flex-shrink:0;margin:0}
.recommend-body h3,.recommend-card h3{margin:0;font-size:.9rem;line-height:1.5;color:var(--ink);flex:1;min-width:0}

/* CARDS */
.card,.cat-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:18px;transition:.18s;display:block}
.card:hover,.cat-card:hover{transform:translateY(-3px)}
.card img{border-radius:16px;margin-bottom:12px;width:100%;object-fit:cover}
.card-title{display:block;font-size:1rem;font-weight:700;line-height:1.5;margin:8px 0 4px;color:var(--ink)}
.card-desc{display:block;font-size:.88rem;color:var(--muted);line-height:1.6}
.tag{display:inline-block;background:#edf6ff;color:#005ecb;border-radius:999px;font-size:.78rem;font-weight:900;padding:3px 10px}
.cat-head{display:flex;gap:12px;align-items:center}
.cat-icon{font-size:2rem}
.cat-card p{margin:10px 0 0;color:var(--muted);font-size:.92rem;line-height:1.65;font-weight:700}
.cat-card:hover p{color:#486074}

/* SIDEBAR */
.sidebar{position:sticky;top:92px;align-self:start;max-height:calc(100vh - 108px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none;-ms-overflow-style:none}
.sidebar::-webkit-scrollbar{display:none}
.side-box{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:18px;margin-bottom:20px}
.side-box h3{font-size:1rem;font-weight:900;margin:0 0 14px;padding:0 0 10px;border-bottom:2px solid var(--blue);color:#16263a}
.side-list{counter-reset:side-rank;display:flex;flex-direction:column;gap:9px}
.side-list a{display:flex;align-items:center;gap:10px;background:#f5f9ff;border-radius:14px;padding:12px 14px 12px 48px;font-weight:800;font-size:.95rem;transition:.15s;border:1px solid transparent;color:#16263a;counter-increment:side-rank;position:relative}
.side-list a:hover{background:#edf6ff;border-color:#c8e4ff;transform:translateX(3px)}
.side-list a::before{content:counter(side-rank);position:absolute;left:10px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;background:var(--blue);color:#fff;font-size:.8rem;font-weight:900;display:grid;place-items:center}
.side-list a:nth-child(1)::before{background:#f4a32a}
.side-list a:nth-child(2)::before{background:#8d8d8d}
.side-list a:nth-child(3)::before{background:#b87333}

/* ARTICLE */
.article-wrap{max-width:960px;margin:34px auto 64px;padding:0 20px}
.article-body{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:36px 40px}
.article-body .article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.article-body .card{min-width:0;overflow:hidden}
.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-bottom:18px}
.breadcrumb a{color:#005ecb;font-weight:900}
.eyecatch{border-radius:16px;margin-bottom:24px;width:100%;object-fit:cover}
.article-body h1{font-size:clamp(1.55rem,3.2vw,2.3rem);line-height:1.4}
.article-body h2{font-size:1.35rem;margin:1.8em 0 .7em;border-left:6px solid var(--blue);padding-left:12px}
.answer-box{background:#0b355b;color:white;border-radius:22px;padding:22px;margin:24px 0}
.answer-box h2{border:0;padding:0;margin:.2em 0;color:white}
.answer-box h3{color:#90d0ff}
.steps{counter-reset:s;list-style:none;padding:0}
.steps li{counter-increment:s;background:#edf6ff;border:1px solid #c8e4ff;border-radius:14px;padding:12px 14px 12px 52px;margin:10px 0;position:relative}
.steps li:before{content:counter(s);position:absolute;left:14px;top:12px;width:27px;height:27px;border-radius:50%;background:var(--blue);color:white;display:grid;place-items:center;font-weight:900}
.note,.next-read{background:#fff8e8;border:1px solid #ffe0a3;border-radius:16px;padding:16px;margin:24px 0}
.next-list{display:grid;gap:10px}
.next-list a{background:white;border:1px solid var(--line);border-radius:14px;padding:12px;font-weight:900;color:#005ecb}

/* FOOTER */
.footer{background:#16263a;color:#eaf4ff;padding:38px 20px 20px}
.footer-inner{max-width:1180px;margin:auto;display:grid;grid-template-columns:1fr 1fr 1fr;gap:26px}
.footer h3{color:#fff;margin:0 0 12px;font-size:1rem}
.footer ul{list-style:none;padding:0;margin:0;line-height:2}
.footer a{color:#b9cee4;transition:.15s}
.footer a:hover{color:#fff}
.footer-tags{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:0;margin:0;list-style:none}
.footer-tags li a{display:block;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:5px 10px;font-size:.82rem;color:#eaf4ff;text-align:center;transition:.15s}
.footer-tags li a:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.35)}
.footer-copy{text-align:center;border-top:1px solid rgba(255,255,255,.14);max-width:1180px;margin:24px auto 0;padding-top:16px;color:#b9cee4}

/* CONTACT */
.contact-wrap{max-width:720px;margin:40px auto 64px;padding:0 20px}
.contact-box{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:36px 40px}
.contact-box h1{font-size:1.8rem;margin-bottom:8px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:700;margin-bottom:6px}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;font-size:1rem;font-family:inherit;transition:.15s;background:#fafcff}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,122,255,.12)}
.form-group textarea{min-height:150px;resize:vertical}
.submit-btn{background:var(--blue);color:#fff;border:none;border-radius:999px;padding:14px 36px;font-size:1.05rem;font-weight:900;cursor:pointer;transition:.15s}
.submit-btn:hover{background:#005ecb}
.required{color:#ff3b30;font-size:.8rem;margin-left:4px}
.privacy-check{display:flex;align-items:flex-start;gap:10px;font-size:.9rem}
.privacy-check input{margin-top:4px}
.alert-success{background:#e8f5e9;border:1px solid #a5d6a7;border-radius:14px;padding:20px;margin-bottom:24px;color:#2e7d32;font-weight:700}

/* TAG / CAT PAGE */
.tax-header{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;margin-bottom:24px;box-shadow:var(--shadow)}

@media(max-width:900px){
  .hero-inner,.main{grid-template-columns:1fr}
  .nav{display:none}
  .sidebar{position:static}
  .cat-grid,.article-grid,.recommend-grid,.footer-inner{grid-template-columns:1fr}
  .article-body .article-grid{grid-template-columns:1fr}
  .article-body{padding:24px 18px}
  .contact-box{padding:24px 18px}
  .hero-card-main{grid-template-columns:1fr;text-align:center}
  .hero-card .phone{margin:auto}
  .hero-card-info li{text-align:left}
  .hero-card-bottom{justify-content:center}
}
@media(max-width:600px){
  .recommend-grid{grid-template-columns:1fr}
}