/* ============================================================
   Yodel Snow School — Course Lesson Pages
   Shared stylesheet (2026-2027 season redesign)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Zen+Kaku+Gothic+New:wght@500;700;900&family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

:root{
  --ink:#131c2b;
  --ink-soft:#1f2e45;
  --ink-softer:#324259;
  --accent:#2f6fed;
  --accent-dark:#1c4fc9;
  --accent-tint:#eaf1ff;
  --green:#5c9a2d;
  --green-tint:#eef7e4;
  --bg:#f5f7fb;
  --surface:#ffffff;
  --border:#e3e8f0;
  --text:#1c2430;
  --text-muted:#5b6474;
  --text-faint:#8791a1;
  --danger:#c8462f;
  --danger-tint:#fbebe7;
  --radius-sm:8px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(19,28,43,.06), 0 1px 1px rgba(19,28,43,.04);
  --shadow:0 10px 30px -12px rgba(19,28,43,.25);
  --shadow-lg:0 24px 60px -20px rgba(19,28,43,.35);
  --maxw:1120px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Hiragino Sans",sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--accent-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{
  font-family:"Zen Kaku Gothic New","Noto Sans JP",sans-serif;
  font-weight:700;
  line-height:1.4;
  margin:0 0 .6em;
  color:var(--ink);
  letter-spacing:.01em;
}
p{margin:0 0 1em}
ul{margin:0;padding:0}
button{font-family:inherit}

.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:64px 0}
.section-tight{padding:40px 0}
@media (max-width:640px){
  .section{padding:44px 0}
  .section-tight{padding:28px 0}
}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8rem;font-weight:700;letter-spacing:.14em;
  color:var(--accent-dark);text-transform:uppercase;
  margin-bottom:10px;
}
.section-title{font-size:1.7rem;margin-bottom:6px}
.section-lead{color:var(--text-muted);font-size:.98rem;max-width:60ch}

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;
  padding:10px 16px;border-radius:0 0 8px 0;z-index:1000;
}
.skip-link:focus{left:0}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(19,28,43,.94);
  backdrop-filter:saturate(160%) blur(10px);
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;
  max-width:var(--maxw);margin:0 auto;padding:12px 20px;
  gap:16px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-weight:700;font-size:1.05rem;
  font-family:"Zen Kaku Gothic New",sans-serif;
  white-space:nowrap;
}
.brand img{height:34px;width:auto;filter:brightness(0) invert(1);opacity:.95}
.brand .brand-jp{font-size:1rem}
.brand .brand-sub{display:block;font-size:.68rem;font-weight:500;color:#aeb9cc;letter-spacing:.08em}

.nav-toggle{
  display:none;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:8px;padding:8px 10px;cursor:pointer;
}
.nav-toggle svg{display:block}
.nav-toggle rect{fill:#fff}

.nav-links{
  display:flex;flex-wrap:wrap;align-items:center;gap:2px;
  font-size:.88rem;
}
.nav-links a{
  color:#dbe2ee;padding:9px 12px;border-radius:8px;white-space:nowrap;
}
.nav-links a:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none}
.nav-links a.is-active{color:#fff;background:rgba(47,111,237,.35)}
.nav-links .nav-en{
  border:1px solid rgba(255,255,255,.28);border-radius:20px;padding:6px 14px;
  margin-left:6px;
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:var(--ink);flex-direction:column;align-items:stretch;
    padding:8px 14px 18px;gap:2px;border-bottom:1px solid rgba(255,255,255,.1);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 10px;border-bottom:1px solid rgba(255,255,255,.06)}
  .nav-links .nav-en{margin-left:0;text-align:center}
}

.back-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.85rem;font-weight:700;color:var(--accent-dark);
  padding:14px 0 0;
}
.back-link::before{content:"←";}

/* ---------- Hero ----------
   NOTE: background-color/position/size/repeat are set here as single
   (non comma-separated) values on purpose. Each page supplies its own
   background-image (gradient + photo, as a 2-layer comma list) via an
   inline style. A single value here is repeated to cover however many
   image layers the page declares, so the photo always scales/centers
   correctly and never tiles, regardless of layer count. */
.hero{
  position:relative;color:#fff;
  background-color:var(--ink);
  background-image:linear-gradient(180deg,rgba(12,18,30,.35),rgba(12,18,30,.78));
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
  min-height:340px;
  display:flex;align-items:flex-end;
}
.hero-home{min-height:520px}
.hero-inner{
  max-width:var(--maxw);margin:0 auto;width:100%;
  padding:60px 20px 40px;
}
.hero-tag{
  display:inline-block;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  padding:5px 14px;border-radius:20px;font-size:.78rem;font-weight:700;letter-spacing:.08em;
  margin-bottom:14px;backdrop-filter:blur(4px);
}
.hero h1{color:#fff;font-size:clamp(1.6rem,4vw,2.6rem);margin-bottom:8px;text-shadow:0 2px 18px rgba(0,0,0,.35)}
.hero-sub{color:#e7ecf6;font-size:1.02rem;max-width:64ch;margin-bottom:0}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;
}
.hero-fact{
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:12px;padding:10px 16px;font-size:.86rem;backdrop-filter:blur(4px);
}
.hero-fact b{display:block;font-size:.68rem;font-weight:500;color:#c7d1e3;letter-spacing:.06em;margin-bottom:2px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:700;font-size:.95rem;
  border:2px solid transparent;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease;
}
.btn:hover{text-decoration:none}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px -10px rgba(47,111,237,.6)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff}
.btn-outline{background:transparent;color:var(--accent-dark);border-color:var(--accent)}
.btn-outline:hover{background:var(--accent-tint)}
.btn-block{width:100%}
.btn-lg{padding:16px 30px;font-size:1.02rem}

/* ---------- Cards / session grid ---------- */
.month-block{margin-bottom:40px}
.month-heading{
  display:flex;align-items:baseline;gap:12px;margin-bottom:18px;
  padding-bottom:10px;border-bottom:2px solid var(--border);
}
.month-heading .num{
  font-family:"Zen Kaku Gothic New",sans-serif;font-weight:900;
  font-size:1.9rem;color:var(--ink);
}
.month-heading .yr{color:var(--text-faint);font-size:.85rem;font-weight:700}

.session-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;
}
.session-card{
  position:relative;
  background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--course-c,var(--accent));
  border-radius:var(--radius);
  padding:20px 20px 18px;box-shadow:var(--shadow-sm);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
  display:flex;flex-direction:column;gap:10px;
}
a.session-card{color:inherit}
a.session-card:hover{
  transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c9d7f7;border-left-color:var(--course-c,var(--accent));text-decoration:none;
}
.session-card .cat{
  display:inline-flex;align-self:flex-start;align-items:center;gap:6px;
  font-size:.72rem;font-weight:700;letter-spacing:.05em;color:var(--course-c,var(--accent-dark));
  background:var(--course-t,var(--accent-tint));padding:4px 10px;border-radius:999px;
}
.session-card.is-cancelled{opacity:.62}
.session-card.is-cancelled .cat{color:var(--danger);background:var(--danger-tint)}

/* Per-course color coding on the calendar page (session.calendar.html).
   Each of the 9 courses gets one color, reused across all of its own
   session cards (e.g. all 6 シニアキャンプ cards share one color, all 4
   デモキャンプ cards share another) — set via data-course on the card. */
.session-card[data-course="hatsusuberi"]{--course-c:#0e7d82;--course-t:#e1f5f5}
.session-card[data-course="opening"]{--course-c:#c15b05;--course-t:#fdecdc}
.session-card[data-course="senior"]{--course-c:#1f7a3d;--course-t:#e3f6e8}
.session-card[data-course="demo"]{--course-c:#6a3dc9;--course-t:#ece6fb}
.session-card[data-course="anteikan"]{--course-c:#c22a3f;--course-t:#fbe5e8}
.session-card[data-course="jyotatsu"]{--course-c:#1b4fa0;--course-t:#e2ebfa}
.session-card[data-course="spring"]{--course-c:#c22a7a;--course-t:#fbe4ef}
.session-card[data-course="goldenweek"]{--course-c:#9c7a00;--course-t:#faf3d2}
.session-card[data-course="gassan"]{--course-c:#3f5566;--course-t:#e7edf1}
.session-card h3{font-size:1.08rem;margin:0}
.session-card .date{
  font-weight:700;color:var(--ink-soft);font-size:.92rem;
  display:flex;align-items:center;gap:6px;
}
.session-card .date svg{flex:none}
.session-card .meta{font-size:.82rem;color:var(--text-muted)}
.session-card .go{
  margin-top:auto;font-size:.82rem;font-weight:700;color:var(--accent-dark);
  display:flex;align-items:center;gap:4px;
}
.session-card .go::after{content:"›";font-size:1.1em}
.tag-cancelled{
  display:inline-block;font-size:.72rem;font-weight:700;color:var(--danger);
  background:var(--danger-tint);padding:3px 9px;border-radius:999px;margin-left:6px;
}

/* ---------- Info / at-a-glance card (course detail) ---------- */
.detail-layout{
  display:grid;grid-template-columns:1.55fr 1fr;gap:28px;align-items:start;
}
@media (max-width:900px){
  .detail-layout{grid-template-columns:1fr}
}
.lede{font-size:1.02rem;color:var(--text)}
.lede + .notice-list{margin-top:18px}

.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
}
.info-card{padding:24px 24px 20px;position:sticky;top:88px}
@media (max-width:900px){.info-card{position:static}}
.info-card h2{font-size:1.05rem;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.info-card h2::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.info-list{list-style:none;margin:0;padding:0}
.info-list li{
  display:flex;gap:14px;padding:12px 0;border-top:1px solid var(--border);
  font-size:.9rem;
}
.info-list li:first-child{border-top:none;padding-top:0}
.info-list .k{
  flex:0 0 84px;color:var(--text-faint);font-weight:700;font-size:.78rem;
  letter-spacing:.03em;padding-top:2px;
}
.info-list .v{flex:1;color:var(--text)}
.info-list .v .price-line{display:block;margin:0 0 2px}
.info-list .v small{color:var(--text-muted)}
.price-highlight{
  font-family:"Zen Kaku Gothic New",sans-serif;font-weight:900;color:var(--accent-dark);font-size:1.05em;
}
.info-card .cta{margin-top:18px}

/* ---------- Schedule table ---------- */
.schedule{
  border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface);
}
.schedule-day{
  display:grid;grid-template-columns:120px 1fr;gap:0;
  border-top:1px solid var(--border);
}
.schedule-day:first-child{border-top:none}
.schedule-day .day-label{
  background:var(--bg);padding:16px 18px;font-weight:700;color:var(--ink-soft);
  font-size:.9rem;display:flex;align-items:center;
}
.schedule-day .day-body{padding:16px 20px;font-size:.92rem}
.schedule-day .day-body .slot{display:flex;gap:10px;padding:4px 0}
.schedule-day .day-body .slot .time{flex:0 0 128px;color:var(--accent-dark);font-weight:700}
@media (max-width:560px){
  .schedule-day{grid-template-columns:1fr}
  .schedule-day .day-label{padding:10px 18px}
  /* flex-direction:column makes flex-basis apply to HEIGHT, so the time
     label's fixed 128px basis must be cleared here or it renders as a
     128px-tall block and pushes a large gap above the description text. */
  .schedule-day .day-body .slot{flex-direction:column;align-items:flex-start;gap:1px}
  .schedule-day .day-body .slot .time{flex:0 0 auto}
}

/* ---------- Notices ---------- */
.notice-list{
  list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;
}
.notice-list li{
  position:relative;padding-left:20px;font-size:.88rem;color:var(--text-muted);
}
.notice-list li::before{content:"※";position:absolute;left:0;color:var(--text-faint)}

.notice-panel{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 24px;
}
.notice-panel h3{font-size:1rem;margin-bottom:10px}

/* ---------- Form ---------- */
.form-card{padding:28px 26px 30px}
@media (max-width:560px){.form-card{padding:22px 18px 26px}}
.field{margin-bottom:20px}
.field label{
  display:block;font-weight:700;font-size:.86rem;color:var(--ink-soft);margin-bottom:7px;
}
.field .req{color:var(--danger);font-weight:700;font-size:.75rem;margin-left:4px}
.field input[type=text],
.field input[type=tel],
.field input[type=email],
.field select,
.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--border);border-radius:10px;
  font-size:.95rem;font-family:inherit;background:#fbfcfe;color:var(--text);
  transition:border-color .15s ease,background .15s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);background:#fff;
}
.field textarea{resize:vertical;min-height:110px}
.dob-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.dob-row select{width:auto;flex:1;min-width:88px}
.dob-row span{color:var(--text-muted);font-size:.88rem}
.check-grid{display:flex;flex-direction:column;gap:10px}
.check-item{
  display:flex;align-items:center;gap:10px;border:1.5px solid var(--border);
  border-radius:10px;padding:12px 14px;font-size:.92rem;cursor:pointer;background:#fbfcfe;
}
.check-item:has(input:checked){border-color:var(--accent);background:var(--accent-tint)}
.check-item input{width:18px;height:18px;accent-color:var(--accent);flex:none}
.radio-inline{display:flex;gap:18px;align-items:center}
.radio-inline label{display:flex;align-items:center;gap:6px;font-weight:500;color:var(--text);font-size:.92rem}
.radio-inline input{accent-color:var(--accent);width:16px;height:16px}
.form-note{font-size:.8rem;color:var(--text-faint);margin-top:-8px;margin-bottom:18px}

/* ---------- Contact block ---------- */
.contact-panel{
  background:var(--ink);color:#e9edf6;border-radius:var(--radius-lg);
  padding:30px 30px;display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center;
}
@media (max-width:640px){.contact-panel{grid-template-columns:1fr;text-align:left}}
.contact-panel h3{color:#fff;font-size:1.05rem;margin-bottom:6px}
.contact-panel .lines{font-size:.9rem;color:#c4cee2}
.contact-panel .lines a{color:#fff}
.contact-panel .lines .small{font-size:.78rem;color:#98a4bd;display:block;margin-top:6px;line-height:1.7}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink);color:#aeb9cc;padding:48px 0 26px;margin-top:60px;
}
.footer-grid{
  display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:30px;margin-bottom:34px;
}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;margin-bottom:10px;font-family:"Zen Kaku Gothic New",sans-serif}
.footer-brand img{height:30px;filter:brightness(0) invert(1);opacity:.9}
.footer-col h4{color:#fff;font-size:.85rem;letter-spacing:.05em;margin-bottom:12px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:8px;font-size:.86rem}
.footer-col a{color:#aeb9cc}
.footer-col a:hover{color:#fff}
.footer-social{display:flex;gap:10px;margin-top:14px}
.footer-social a{
  width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;
}
.footer-social img{height:16px;filter:brightness(0) invert(1);opacity:.85}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:18px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:.78rem;color:#7c8aa4;
}

/* ---------- Misc ---------- */
.divider{height:1px;background:var(--border);margin:34px 0}
.badge-sia{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--text-muted)}
.badge-sia img{height:26px}
.small-print{font-size:.8rem;color:var(--text-faint)}

.anchor-offset{scroll-margin-top:90px}

::selection{background:var(--accent);color:#fff}