/* スタディスタディ 共通レイアウト。色・書体・形は theme-N.css の変数で切り替える。 */
:root{
  --bg:#fff;--surface:#fff;--alt:#f5f7fa;--text:#1f2a37;--muted:#4b5563;--line:#e2e8f0;
  --primary:#1d6fd1;--primary-ink:#fff;--primary-soft:#eaf3ff;--accent:#1d6fd1;
  --cta:#e4570f;--cta-ink:#fff;--cta-hover:#c74a0b;--line-green:#06c755;--line-ink:#fff;
  --radius:12px;--radius-lg:20px;--btn-radius:999px;--shadow:0 10px 30px rgba(15,40,80,.08);
  --font-body:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI","Yu Gothic",Meiryo,sans-serif;
  --font-head:var(--font-body);--head-weight:700;--head-spacing:.02em;
  --hero-bg:var(--primary-soft);--hero-ink:var(--text);--hero-em:var(--primary);
  --header-bg:rgba(255,255,255,.96);--header-h:72px;--container:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.85 var(--font-body);letter-spacing:.02em;overflow-wrap:anywhere}
img,svg{display:block;max-width:100%}
svg{fill:currentColor}
a{color:inherit}
p{margin:0 0 1em}
h1,h2,h3{margin:0;font-family:var(--font-head);font-weight:var(--head-weight);letter-spacing:var(--head-spacing);line-height:1.5}
h1{font-size:clamp(32px,4.4vw,54px);line-height:1.4}
h2{font-size:clamp(26px,3vw,38px)}
h3{font-size:20px}
small{font-size:.8em}
em{font-style:normal}
ul,ol{margin:0;padding:0;list-style:none}
dl,dd{margin:0}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.skip{position:fixed;left:12px;top:-80px;z-index:200;background:#fff;color:#000;padding:10px 14px;border-radius:6px}
.skip:focus{top:12px}
.sp-only{display:none}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.container.narrow{max-width:860px}
.note{font-size:14px;line-height:1.8;color:var(--muted)}

/* ---------- buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:56px;padding:14px 28px;border-radius:var(--btn-radius);font-weight:700;font-size:17px;line-height:1.4;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:inherit;transition:background .15s,transform .15s,box-shadow .15s}
.btn svg{width:22px;height:22px;flex-shrink:0}
.btn:hover{transform:translateY(-1px)}
.btn-cta{background:var(--cta);color:var(--cta-ink);box-shadow:0 6px 18px color-mix(in srgb,var(--cta) 35%,transparent)}
.btn-cta:hover{background:var(--cta-hover)}
.btn-small{min-height:44px;padding:8px 18px;font-size:14px}
.btn-small svg{width:18px;height:18px}
.btn-wide{width:100%;max-width:440px}
.btn-tel,.btn-line{min-height:52px;padding:10px 20px;font-size:15px;background:var(--surface);color:var(--text);border-color:var(--line)}
.btn-tel span,.btn-line span{display:flex;flex-direction:column;align-items:flex-start;line-height:1.3}
.btn-tel small{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.04em}
.btn-tel svg{color:var(--primary)}
.btn-line svg{color:var(--line-green)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line);min-height:56px}
.contact-row{display:flex;flex-wrap:wrap;gap:12px}
.cta-note{font-size:14px;color:var(--muted);margin:10px 0 0}
.more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--primary);text-decoration:none;font-size:15px}
.more svg{width:18px;height:18px}
.more:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- header */
.site-header{position:sticky;top:0;z-index:50;background:var(--header-bg);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:var(--header-h);display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--primary);color:var(--primary-ink);display:grid;place-items:center;font:800 24px/1 var(--font-head)}
.brand-text small{display:block;font-size:12px;color:var(--muted);line-height:1.3}
.brand-text strong{display:block;font-size:20px;line-height:1.3;font-family:var(--font-head)}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:15px;font-weight:600}
.main-nav>a:not(.btn){text-decoration:none}
.main-nav>a:not(.btn):hover{color:var(--primary)}
.nav-tel{display:flex;align-items:center;gap:6px;font-weight:800;letter-spacing:.04em}
.nav-tel svg{width:18px;height:18px;color:var(--primary)}
.menu-toggle{display:none}

/* ---------- hero */
.hero{background:var(--hero-bg);color:var(--hero-ink);overflow:hidden}
.hero-inner{max-width:var(--container);margin:0 auto;padding:64px 32px 72px;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-eyebrow{display:inline-block;font-size:14px;font-weight:700;padding:6px 14px;border-radius:999px;background:var(--surface);color:var(--primary);margin-bottom:20px}
.hero h1 em{color:var(--hero-em)}
.hero-lead{font-size:18px;margin:20px 0 24px;line-height:1.9}
.hero-points{display:grid;gap:10px;margin-bottom:28px}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:16px}
.hero-points svg{width:24px;height:24px;flex-shrink:0;color:var(--surface);background:var(--primary);border-radius:50%;padding:3px;margin-top:2px}
.hero-points strong{margin-right:10px}
.hero-actions{display:grid;gap:16px;justify-items:start}
.hero-actions .btn-cta{min-height:64px;font-size:19px;padding:16px 34px}
.hero-card{background:var(--surface);color:var(--text);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow);min-width:0;container-type:inline-size}
.hero-card-label{font-size:15px;font-weight:700;color:var(--muted);margin:0}
.hero-price,.fee-price{display:flex;align-items:baseline;gap:clamp(3px,1.5cqi,6px);margin:4px 0;line-height:1.2;white-space:nowrap}
.hero-price>*,.fee-price>*{flex-shrink:0}
.yen-label{font-size:clamp(15px,5cqi,18px);font-weight:700}
.hero-price strong,.fee-price strong{font-size:clamp(36px,17cqi,68px);font-weight:800;letter-spacing:-.02em;color:var(--primary);font-variant-numeric:tabular-nums;font-family:var(--font-head)}
.yen{font-size:clamp(16px,5.5cqi,20px);font-weight:700}
.yen small{font-size:13px;font-weight:500}
.hero-price-sub{font-weight:700;font-size:16px;margin-bottom:16px}
.hero-zero{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:20px}
.hero-zero li{background:var(--alt);border-radius:var(--radius);padding:10px 6px;text-align:center;display:flex;flex-direction:column;line-height:1.4}
.hero-zero span{font-size:13px;color:var(--muted)}
.hero-zero strong{font-size:18px;color:var(--primary)}
.hero-time{border-top:1px solid var(--line);padding-top:16px;display:grid;gap:4px}
.hero-time>span:first-child{font-size:14px;color:var(--muted)}
.hero-time strong{font-size:28px;font-variant-numeric:tabular-nums;line-height:1.3}
.hero-time-bar{display:block;height:12px;border-radius:6px;background:var(--alt);overflow:hidden}
.hero-time-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--accent))}
.hero-time small{font-size:14px;color:var(--muted)}
.hero-trial{margin:16px 0 0;padding:12px 16px;background:var(--primary-soft);border-radius:var(--radius);font-size:15px}
.hero-trial strong{color:var(--primary)}

/* ---------- sections */
.section{padding:88px 0}
.section-head{margin-bottom:44px;max-width:780px}
.kicker{font-size:15px;font-weight:700;color:var(--primary);margin:0 0 10px;letter-spacing:.06em}
.section-lead{font-size:17px;color:var(--muted);margin:18px 0 0}
.section-cta{margin-top:44px;text-align:center}
.section-cta .cta-note{text-align:center}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.split .section-head{margin-bottom:24px}
.worries,.fees,.school,.parents,.elementary{background:var(--alt)}

.worry-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.worry-list li{background:var(--surface);border-radius:var(--radius);padding:24px 26px;box-shadow:var(--shadow)}
.worry{font-weight:700;font-size:17px;margin-bottom:12px;padding-left:28px;position:relative}
.worry::before{content:"？";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--alt);color:var(--muted);font-size:13px;display:grid;place-items:center;margin-top:3px}
.answer{display:flex;gap:8px;margin:0;color:var(--primary);font-weight:700;font-size:16px}
.answer svg{width:20px;height:20px;flex-shrink:0;margin-top:4px}

.promise-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.promise{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 28px;position:relative}
.promise-num{font:800 44px/1 var(--font-head);color:var(--primary-soft);-webkit-text-stroke:1px var(--primary);display:block;margin-bottom:12px}
.promise-tag{display:inline-block;background:var(--primary);color:var(--primary-ink);font-weight:700;font-size:14px;padding:3px 12px;border-radius:999px;margin-bottom:14px}
.promise h3{font-size:23px;margin-bottom:12px}
.promise p:not(.promise-tag){color:var(--muted);font-size:16px}

.fee-layout{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}
.fee-card{background:var(--surface);border:3px solid var(--primary);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow);min-width:0;container-type:inline-size}
.fee-course{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;margin-bottom:8px}
.fee-course strong{font-size:24px}
.fee-course span{color:var(--muted);font-size:15px}
.fee-sub{font-weight:700;margin:0 0 18px}
.fee-initial{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 12px;align-items:baseline;border-top:1px dashed var(--line);padding-top:16px;margin:0}
.fee-initial span{color:var(--muted);font-size:15px}
.fee-initial strong{font-size:20px}
.fee-zero{background:var(--surface);border-radius:var(--radius-lg);padding:32px}
.fee-zero h3{margin-bottom:16px}
.fee-zero ul{margin-bottom:18px}
.fee-zero li{display:flex;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);font-size:16px}
.fee-zero li strong{color:var(--primary);font-size:18px}
.fee-elementary{margin:24px 0 0;font-size:15px;color:var(--muted)}
.fee-elementary a{color:var(--primary);font-weight:700;margin-left:8px}

.timeline{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 32px}
.timeline-ends{display:flex;justify-content:space-between;font-size:15px;margin-bottom:10px}
.timeline-ends strong{font-size:28px;margin-right:6px;font-variant-numeric:tabular-nums}
.timeline-bar{height:56px;border-radius:28px;background:linear-gradient(90deg,var(--primary),var(--accent));color:var(--primary-ink);display:grid;place-items:center;font-weight:700;font-size:16px;text-align:center;padding:0 12px}
.timeline-ticks{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin:8px 6px 0}
.timeline-note{margin:14px 0 0;font-size:16px;font-weight:700;color:var(--primary);text-align:center}
.rule-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:26px 0}
.rule-grid li{background:var(--primary-soft);border-radius:var(--radius);padding:20px 22px;display:flex;flex-direction:column}
.rule-grid strong{font-size:18px}
.rule-grid span{font-size:15px;color:var(--muted)}
.hours-table{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);margin-bottom:14px}
.hours-table div{padding:18px 22px;border-left:1px solid var(--line)}
.hours-table div:first-child{border-left:0}
.hours-table dt{font-size:15px;color:var(--muted)}
.hours-table dd{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums}

.school-steps{display:grid;gap:14px}
.school-steps li{display:flex;gap:18px;background:var(--surface);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow)}
.school-steps li>span{font:800 26px/1 var(--font-head);color:var(--primary);min-width:40px;padding-top:4px}
.school-steps h3{font-size:18px;margin-bottom:4px}
.school-steps p{margin:0;color:var(--muted);font-size:15px}
.school .split>div>p{font-size:16px}

.cycle{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:c}
.cycle li{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 22px;position:relative}
.cycle li:not(:last-child)::after{content:"";position:absolute;right:-14px;top:44px;width:10px;height:10px;border-top:3px solid var(--primary);border-right:3px solid var(--primary);transform:rotate(45deg);z-index:1}
.cycle-num{width:40px;height:40px;border-radius:50%;background:var(--primary);color:var(--primary-ink);display:grid;place-items:center;font-weight:800;font-size:18px;margin-bottom:12px}
.cycle-tag{font-size:14px;font-weight:700;color:var(--primary);margin:0 0 2px}
.cycle h3{font-size:19px;margin-bottom:8px}
.cycle li>p:last-child{font-size:15px;color:var(--muted);margin:0}
.cycle-loop{text-align:center;font-weight:700;color:var(--primary);margin:18px 0 32px}
.cycle-loop::before{content:"↻ "}
.daily{background:var(--primary-soft);border-radius:var(--radius-lg);padding:28px 32px;margin-bottom:18px}
.daily h3{margin-bottom:12px}
.daily ol{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.daily li{background:var(--surface);border-radius:var(--radius);padding:16px 18px;display:flex;flex-direction:column;font-size:16px}
.daily strong{color:var(--primary)}

/* ---------- teacher introduction (replace the placeholder with a real photo later) */
.teacher{background:var(--alt)}
.teacher-card{display:grid;grid-template-columns:280px minmax(0,1fr);gap:44px;align-items:center;padding:36px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.teacher-photo{margin:0;aspect-ratio:4/5;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;border-radius:var(--radius);background:linear-gradient(145deg,var(--primary-soft),var(--alt));color:var(--primary)}
.teacher-photo svg{width:140px;height:140px;opacity:.5}
.teacher-photo figcaption{font-size:14px;font-weight:700;letter-spacing:.06em}
.teacher-role{font-size:15px;font-weight:700;color:var(--primary);margin-bottom:8px}
.teacher-copy h3{font-size:clamp(22px,2.5vw,28px);margin-bottom:18px}
.teacher-copy>p:not(.teacher-role){color:var(--muted)}
.teacher-profile{margin:24px 0 16px}
.teacher-profile div{display:grid;grid-template-columns:100px minmax(0,1fr);gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:15px}
.teacher-profile dt{font-weight:700;color:var(--primary)}
.teacher-copy .note{margin:0}

.parent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.parent-grid article{background:var(--surface);border-radius:var(--radius-lg);padding:30px 28px;box-shadow:var(--shadow)}
.parent-icon{width:56px;height:56px;border-radius:16px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;margin-bottom:16px}
.parent-icon svg{width:30px;height:30px}
.parent-grid h3{margin-bottom:10px}
.parent-grid p{color:var(--muted);margin:0;font-size:16px}

.trial{background:var(--surface)}
.trial-box{background:var(--primary-soft);border-radius:var(--radius-lg);padding:56px 48px}
.trial-badges{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:36px}
.trial-badges li{background:var(--surface);border:2px solid var(--primary);border-radius:var(--radius);padding:12px 22px;display:flex;align-items:baseline;gap:10px}
.trial-badges strong{font-size:24px;color:var(--primary)}
.trial-badges span{font-size:17px;font-weight:700}
.trial-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:36px}
.trial-steps li{background:var(--surface);border-radius:var(--radius);padding:22px 20px}
.trial-steps li>span{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--primary-ink);background:var(--primary);border-radius:999px;padding:2px 12px;margin-bottom:10px}
.trial-steps h3{font-size:18px;margin-bottom:6px}
.trial-steps p{font-size:15px;color:var(--muted);margin:0}
.trial-actions{display:grid;justify-items:center;text-align:center;gap:10px;margin-bottom:24px}
.trial-actions .btn-cta{min-height:64px;font-size:19px;padding:16px 36px}
.trial-or{margin:14px 0 0;font-size:15px;color:var(--muted)}
.trial-actions .contact-row{justify-content:center}

.faq-list{display:grid;gap:12px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.faq summary{display:flex;align-items:center;gap:14px;padding:20px 22px;cursor:pointer;list-style:none;font-weight:700;font-size:17px}
.faq summary::-webkit-details-marker{display:none}
.q{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:var(--primary);color:var(--primary-ink);display:grid;place-items:center;font-weight:800;font-size:15px}
.a .q{background:var(--cta)}
.q-text{flex:1}
.toggle{width:20px;height:20px;position:relative;flex-shrink:0}
.toggle::before,.toggle::after{content:"";position:absolute;left:3px;right:3px;top:9px;height:2px;background:currentColor;transition:transform .2s}
.toggle::after{transform:rotate(90deg)}
details[open] .toggle::after{transform:rotate(0)}
.a{display:flex;gap:14px;padding:0 22px 22px}
.a p{margin:4px 0 0;font-size:16px;color:var(--muted)}

.elem-box{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;background:var(--surface);border-radius:var(--radius-lg);padding:36px 40px}
.elem-box h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:12px}
.elem-box p{font-size:16px;color:var(--muted)}
.elem-fee{border-left:1px solid var(--line);padding-left:36px}
.elem-fee>p:first-child{font-weight:700;color:var(--text);margin:0}
.elem-price{font-size:20px;font-weight:700;color:var(--text)!important;margin:4px 0}
.elem-price strong{font-size:38px;color:var(--primary)}

.access-data div{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:16px 0;border-bottom:1px solid var(--line)}
.access-data dt{color:var(--muted);font-size:15px}
.access-data dd{font-weight:700}
.access-data dd small{font-weight:500;color:var(--muted);font-size:14px}
.access-data a{color:var(--primary)}
.access .note{margin-top:14px}
.contact-box{margin-top:48px;background:var(--primary-soft);border-radius:var(--radius-lg);padding:32px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.contact-box h3{margin-bottom:6px}
.contact-box p{margin:0;color:var(--muted)}

.end-cta{background:var(--primary);color:var(--primary-ink);padding:80px 0;text-align:center}
.end-cta .kicker{color:inherit;opacity:.9}
.end-cta h2{margin-bottom:14px}
.end-cta p:not(.kicker):not(.cta-note){font-size:17px;opacity:.95}
.end-actions{display:grid;justify-items:center;gap:16px;margin-top:28px}
.end-actions .btn-cta{min-height:64px;font-size:19px;padding:16px 36px}
.end-cta .cta-note{color:inherit;opacity:.9}
.end-actions .contact-row{justify-content:center}

/* ---------- inner pages */
.page-intro{background:var(--hero-bg);color:var(--hero-ink);padding:56px 0}
.page-intro h1{font-size:clamp(28px,3.4vw,42px);margin-bottom:14px}
.page-intro p:last-child{font-size:17px;margin:0;max-width:760px}
.materials-bridge{margin:28px 0 8px;font-weight:700;font-size:17px}
.material-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.material-grid article{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px}
.material-type{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:8px}
.material-grid h3{margin-bottom:12px}
.material-grid p{color:var(--muted)}
.material-grid li{padding-left:26px;position:relative;margin-top:6px}
.material-grid li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:800}
.flow-list{display:grid;gap:18px}
.flow-list li{display:flex;gap:22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px}
.flow-num{flex-shrink:0;width:48px;height:48px;border-radius:50%;background:var(--primary);color:var(--primary-ink);display:grid;place-items:center;font-weight:800;font-size:20px}
.flow-list h2{font-size:22px;margin-bottom:8px}
.flow-list p{margin:0;color:var(--muted)}
.prose h2{font-size:22px;margin:36px 0 12px}
.prose h2:first-child{margin-top:0}
.prose p{font-size:16px}

/* ---------- booking */
.booking-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.form-steps{display:flex;gap:8px;margin-bottom:28px;counter-reset:s}
.form-steps li{flex:1;text-align:center;padding:10px 4px;border-radius:var(--radius);background:var(--alt);color:var(--muted);font-weight:700;font-size:15px;counter-increment:s}
.form-steps li::before{content:counter(s) ". "}
.form-steps li.is-current{background:var(--primary);color:var(--primary-ink)}
.booking-form fieldset{border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;margin:0 0 24px;background:var(--surface)}
.booking-form legend{font-weight:800;font-size:19px;padding:0 8px;display:flex;align-items:center;gap:10px}
.booking-form legend span{width:30px;height:30px;border-radius:50%;background:var(--primary);color:var(--primary-ink);display:grid;place-items:center;font-size:15px}
.fieldset-lead{font-size:15px;color:var(--muted)}
.field,.choice{margin-bottom:20px}
.field>label,.choice-title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:16px;margin:0 0 8px}
.req,.opt{font-size:12px;font-weight:700;padding:1px 8px;border-radius:4px;line-height:1.6}
.req{background:var(--cta);color:var(--cta-ink)}
.opt{background:var(--alt);color:var(--muted)}
.hint{font-size:14px;color:var(--muted);margin:-4px 0 8px}
.booking-form input[type=text],.booking-form input[type=tel],.booking-form input[type=email],.booking-form input[type=date],.booking-form select,.booking-form textarea{width:100%;font:inherit;font-size:16px;min-height:52px;padding:12px 14px;border:2px solid var(--line);border-radius:10px;background:#fff;color:var(--text)}
.booking-form textarea{min-height:130px;resize:vertical}
.booking-form select:disabled{background:var(--alt);color:var(--muted)}
.booking-form input:focus,.booking-form select:focus,.booking-form textarea:focus{border-color:var(--primary);outline:3px solid color-mix(in srgb,var(--primary) 25%,transparent);outline-offset:0}
.booking-form [aria-invalid=true]{border-color:#c62828!important;background:#fff6f6!important}
.field-error{color:#b71c1c;font-size:14px;font-weight:700;margin:6px 0 0;min-height:0}
.field-error:empty{display:none}
.choice{border-top:1px dashed var(--line);padding-top:16px}
.choice-fields{display:grid;grid-template-columns:auto 1fr auto 1fr;gap:8px 12px;align-items:center}
.name-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.name-fields .field>label{flex-wrap:wrap;font-size:15px}
.booking-form fieldset{min-width:0}
.schedule-fields{display:grid;grid-template-columns:1fr 2fr;gap:12px;margin-top:16px}
.schedule-fields .field{min-width:0}
.time-slots button{font:inherit;font-size:16px;line-height:1.5;border:1px solid var(--primary);border-radius:8px;background:var(--surface);color:var(--text);cursor:pointer;min-height:44px;padding:8px 4px}
.time-slots button:hover{background:var(--primary-soft)}
.time-slots button[aria-pressed="true"]{position:relative;background:var(--primary);color:var(--primary-ink);border-color:var(--primary);font-weight:700}
.time-slots button[aria-pressed="true"]::after{content:'✓';position:absolute;top:-9px;right:-5px;display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--primary);color:var(--primary-ink);border:1px solid var(--surface);font-size:12px}
.time-slots{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.selected-slot{margin:16px 0 0;font-size:16px;font-weight:700}
.access-map{margin-top:24px}
.access-map iframe{width:100%;height:300px;border:0;border-radius:12px}
@media(max-width:600px){.schedule-fields{grid-template-columns:1fr}.access-map iframe{height:260px}}
.sub-label{font-size:14px;color:var(--muted);font-weight:700}
.other-school{margin-top:10px}
.other-school .sub-label{display:block;margin-bottom:4px}
.radio-row{display:flex;flex-wrap:wrap;gap:10px}
.radio-row label{display:flex;align-items:center;gap:8px;min-height:48px;padding:8px 16px;border:2px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;font-size:16px}
.radio-row input,.check input{width:22px;height:22px;accent-color:var(--primary)}
.consent{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.check{display:flex;align-items:center;gap:10px;font-weight:700;cursor:pointer}
.check a{color:var(--primary)}
.form-submit{text-align:center;margin-top:28px}
.form-error-summary{background:#fff3f3;border:2px solid #c62828;color:#8e1515;border-radius:var(--radius);padding:14px 18px;font-weight:700}
.confirm-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px}
.confirm-panel h2{font-size:26px;margin-bottom:8px}
.confirm-list{margin:20px 0}
.confirm-list div{display:grid;grid-template-columns:180px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.confirm-list dt{color:var(--muted);font-size:15px}
.confirm-list dd{font-weight:700;white-space:pre-wrap}
.confirm-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:24px}
.booking-aside{position:sticky;top:calc(var(--header-h) + 20px);background:var(--primary-soft);border-radius:var(--radius-lg);padding:26px}
.booking-aside h2{font-size:20px;margin-bottom:12px}
.booking-aside li{display:flex;flex-direction:column;padding:10px 0;border-bottom:1px solid color-mix(in srgb,var(--primary) 18%,transparent);font-size:15px}
.booking-aside li strong{color:var(--primary)}
.aside-contact{margin-top:18px}
.aside-contact p{font-weight:700;font-size:15px;margin-bottom:10px}
.aside-contact .contact-row{flex-direction:column}
.aside-contact .btn{width:100%;justify-content:flex-start}
.thanks-box{text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:44px 32px;margin-bottom:28px}
.thanks-icon{width:72px;height:72px;margin:0 auto 18px;border-radius:50%;background:var(--primary);color:var(--primary-ink);display:grid;place-items:center}
.thanks-icon svg{width:40px;height:40px}
.thanks-box h1{font-size:clamp(26px,3vw,34px);margin-bottom:14px}
.thanks-lead{font-weight:700;font-size:18px}
.thanks-summary{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 32px;margin-bottom:28px}
.thanks-summary h2,.thanks-next h2{font-size:22px}
.thanks-next{background:var(--primary-soft);border-radius:var(--radius-lg);padding:28px 32px;margin-bottom:24px}
.thanks-next ul{margin:12px 0 20px}
.thanks-next li{padding-left:24px;position:relative;margin-bottom:6px}
.thanks-next li::before{content:"・";position:absolute;left:4px}
.thanks-back{text-align:center}

/* ---------- footer & mobile bar */
.site-footer{background:var(--text);color:#fff;padding:52px 0 28px}
.footer-inner{max-width:var(--container);margin:0 auto;padding:0 32px;display:grid;grid-template-columns:1fr 1fr;gap:40px}
.footer-brand strong{font-size:22px;font-family:var(--font-head)}
.footer-brand a{text-decoration:none}
.footer-brand p{margin-top:10px;font-size:15px;opacity:.9}
.footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;font-size:15px;align-content:start}
.footer-nav a{text-decoration:none;opacity:.9}
.footer-nav a:hover{text-decoration:underline}
.copyright{max-width:var(--container);margin:28px auto 0;padding:0 32px;font-size:13px;opacity:.75}
.mobile-bar{display:none}

/* ---------- responsive */
@media (max-width:1080px){
  .main-nav{gap:16px;font-size:14px}
  .nav-tel{display:none}
  .cycle{grid-template-columns:1fr 1fr}
  .cycle li:nth-child(2)::after{display:none}
  .trial-steps{grid-template-columns:1fr 1fr}
}
@media (max-width:960px){
  :root{--header-h:64px}
  .menu-toggle{display:flex;align-items:center;gap:8px;margin-left:auto;min-height:44px;padding:6px 10px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);font:700 14px var(--font-body);cursor:pointer;flex-shrink:0;white-space:nowrap}
  .menu-bar,.menu-bar::before,.menu-bar::after{display:block;width:18px;height:2px;background:currentColor;position:relative;transition:transform .2s}
  .menu-bar::before,.menu-bar::after{content:"";position:absolute;left:0}
  .menu-bar::before{top:-6px}.menu-bar::after{top:6px}
  .menu-toggle[aria-expanded=true] .menu-bar{background:transparent}
  .menu-toggle[aria-expanded=true] .menu-bar::before{transform:translateY(6px) rotate(45deg)}
  .menu-toggle[aria-expanded=true] .menu-bar::after{transform:translateY(-6px) rotate(-45deg)}
  .main-nav{display:none;position:absolute;left:0;right:0;top:var(--header-h);background:var(--surface);flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);box-shadow:0 20px 30px rgba(0,0,0,.08);max-height:calc(100vh - var(--header-h));overflow:auto}
  .main-nav.is-open{display:flex}
  .main-nav>a:not(.btn){padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px}
  .nav-tel{display:flex}
  .main-nav .btn{margin-top:14px;min-height:54px;font-size:16px}
  .hero-inner{grid-template-columns:1fr;gap:28px;padding:44px 24px 52px}
  .split,.fee-layout,.material-grid,.booking-layout,.elem-box{grid-template-columns:1fr}
  .elem-fee{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:20px}
  .promise-grid,.parent-grid{grid-template-columns:1fr}
  .booking-aside{position:static}
  .teacher-card{grid-template-columns:220px minmax(0,1fr);gap:28px;padding:28px}
}
@media (max-width:640px){
  body{font-size:16px}
  .sp-only{display:inline}
  .container{padding:0 20px}
  .header-inner{padding:0 16px}
  .brand-mark{width:38px;height:38px;font-size:21px;border-radius:10px}
  .brand-text strong{font-size:18px}
  .brand-text small{font-size:12px}
  h1{font-size:clamp(30px,8.6vw,38px)}
  h2{font-size:clamp(24px,6.6vw,28px);line-height:1.55}
  .section{padding:60px 0}
  .section-head{margin-bottom:28px}
  .section-lead{font-size:16px}
  /* hero: price comes right after the headline */
  .hero-inner{display:flex;flex-direction:column;align-items:stretch;gap:0;padding:28px 20px 40px}
  .hero-copy{display:contents}
  .hero-eyebrow{order:1;align-self:flex-start;font-size:13px;margin-bottom:14px}
  .hero h1{order:2}
  .hero-lead{order:3;font-size:16px;margin:14px 0 18px}
  .hero-card{order:4;padding:20px;margin-bottom:22px}
  .hero-points{order:5;margin-bottom:22px}
  .hero-actions{order:6;justify-items:stretch}
  .hero-actions .btn-cta,.trial-actions .btn-cta,.end-actions .btn-cta{width:100%;font-size:18px;padding:14px 18px}
  .hero-zero{gap:6px}
  .hero-zero span{font-size:12px}
  .hero-zero strong{font-size:16px}
  .hero-time strong{font-size:24px}
  .contact-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .contact-row .btn{padding:8px 10px;font-size:15px;min-height:56px}
  .btn-tel small{font-size:12px;letter-spacing:0}
  .worry-list{grid-template-columns:1fr;gap:14px}
  .worry-list li{padding:20px}
  .promise{padding:26px 22px}
  .fee-card,.fee-zero{padding:24px 20px}
  .timeline{padding:20px 16px}
  .timeline-ends strong{font-size:22px}
  .timeline-bar{height:auto;min-height:52px;font-size:15px;padding:8px 14px}
  .timeline-ticks{font-size:12px}
  .rule-grid,.hours-table,.daily ol,.trial-steps{grid-template-columns:1fr}
  .hours-table div{border-left:0;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px}
  .hours-table div:first-child{border-top:0}
  .hours-table dd{font-size:20px;white-space:nowrap}
  .cycle{grid-template-columns:1fr}
  .cycle li::after{display:none}
  .daily{padding:22px 18px}
  .teacher-card{grid-template-columns:minmax(0,1fr);gap:24px;padding:24px 20px}
  .teacher-photo{width:100%;max-width:260px;justify-self:center;aspect-ratio:4/3}
  .teacher-profile div{grid-template-columns:minmax(0,1fr);gap:4px}
  .trial-box{padding:36px 20px;border-radius:var(--radius)}
  .trial-badges{gap:8px}
  .trial-badges li{padding:10px 12px;flex:1 1 30%;flex-direction:column;align-items:center;gap:0;text-align:center}
  .trial-badges strong{font-size:18px}
  .trial-badges span{font-size:15px}
  .faq summary{padding:16px;font-size:16px;gap:10px}
  .a{padding:0 16px 18px}
  .elem-box{padding:26px 20px;gap:20px}
  .access-data div{grid-template-columns:84px 1fr}
  .contact-box{padding:24px 20px}
  .contact-box .contact-row{width:100%}
  .end-cta{padding:56px 0}
  .page-intro{padding:36px 0}
  .page-intro p:last-child{font-size:16px}
  .flow-list li{padding:20px;gap:14px}
  .flow-num{width:40px;height:40px;font-size:17px}
  .flow-list h2{font-size:19px}
  .booking-form fieldset{padding:20px 16px}
  .booking-form legend{font-size:17px}
  .choice-fields{grid-template-columns:1fr}
  .confirm-panel{padding:22px 16px}
  .confirm-list div{grid-template-columns:1fr;gap:2px}
  .confirm-actions{flex-direction:column-reverse}
  .confirm-actions .btn{width:100%;max-width:none}
  .thanks-box{padding:32px 20px}
  .thanks-box h1{font-size:23px}
  .thanks-summary,.thanks-next{padding:22px 18px}
  .footer-inner{grid-template-columns:1fr;padding:0 20px;gap:26px}
  .copyright{padding:0 20px}
  .site-footer{padding-bottom:110px}
  .mobile-bar{display:grid;grid-template-columns:64px 64px 1fr;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:60;padding:8px 10px calc(8px + env(safe-area-inset-bottom));background:var(--header-bg);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(0,0,0,.06)}
  .mobile-bar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:56px;border-radius:12px;text-decoration:none;font-weight:700;font-size:12px;border:1px solid var(--line);background:var(--surface)}
  .mobile-bar svg{width:22px;height:22px}
  .mb-tel svg{color:var(--primary)}
  .mb-line svg{color:var(--line-green)}
  .mobile-bar .mb-cta{flex-direction:row;gap:8px;background:var(--cta);color:var(--cta-ink);border-color:var(--cta);font-size:16px;border-radius:var(--btn-radius)}
  .page-booking .mobile-bar,.page-thanks .mobile-bar{grid-template-columns:1fr 1fr}
  .page-booking .mb-cta,.page-thanks .mb-cta{display:none!important}
}
@media (max-width:360px){
  .header-inner{gap:8px}
  .brand-text small{display:none}
  .hero-zero li{padding:8px 4px}
  .contact-row{grid-template-columns:1fr}
  .mobile-bar{grid-template-columns:56px 56px 1fr;gap:6px;padding-left:8px;padding-right:8px}
  .mobile-bar .mb-cta{font-size:14px;gap:6px}
  .mobile-bar .mb-cta svg{width:20px;height:20px}
  .trial-badges li{flex-basis:100%;flex-direction:row;justify-content:center;gap:10px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}