/* Kyushu Treat — clean, friendly snack-box style. Brand: Kyushu sea blue + yuzu yellow */
:root {
  --blue: #1677E5;
  --blue-deep: #0D56B0;
  --blue-light: #E8F2FE;
  --yellow: #FFC21A;
  --yellow-light: #FFF5D6;
  --pink: #FF5C8D;
  --mint: #23B892;
  --ink: #23284A;
  --muted: #6B7090;
  --line: #E7E9F2;
  --bg-soft: #F6F8FC;
  --white: #FFFFFF;

  --font: "Rubik", "M PLUS Rounded 1c", system-ui, sans-serif;
  --jp: "M PLUS Rounded 1c", "Hiragino Maru Gothic ProN", sans-serif;

  --wrap: 1140px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 20px;
  --shadow: 0 6px 24px rgba(35, 40, 74, .08);
  --shadow-hover: 0 10px 32px rgba(35, 40, 74, .14);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--white); color: var(--ink);
  font-family: var(--font); font-size: 17px; line-height: 1.65; -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--blue); }
h1, h2, h3 { margin: 0; line-height: 1.2; font-weight: 700; }
h2 { font-size: clamp(28px, 3.8vw, 40px); }
h3 { font-size: 20px; }
p { margin: 0; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.center { display: flex; justify-content: center; margin-top: 40px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; z-index: 60; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--pink); outline-offset: 3px; }

/* Buttons: pill */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font); font-weight: 700; font-size: 17px; text-decoration: none;
  padding: 15px 34px; border-radius: 999px; border: 0; cursor: pointer;
  box-shadow: 0 4px 14px rgba(22, 119, 229, .28); transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(22, 119, 229, .32); }
.btn-blue { background: var(--blue); color: #fff; }
.btn-blue:hover { background: var(--blue-deep); }
.btn-yellow { background: var(--yellow); color: var(--ink); box-shadow: 0 4px 14px rgba(255, 170, 0, .35); }
.btn-yellow::after { content: "★"; font-size: 15px; }
.btn-outline-light { background: rgba(255,255,255,.14); color: #fff; box-shadow: inset 0 0 0 2px rgba(255,255,255,.8); }
.btn-small { padding: 9px 22px; font-size: 15px; }
.btn-small::after { content: none; }
.btn-block { display: flex; width: 100%; }

/* Top bar + header */
.topbar { background: var(--blue); color: #fff; text-align: center; font-size: 14px; padding: 8px var(--gutter); }
.topbar a { color: var(--yellow); font-weight: 700; }
.site-header { position: sticky; top: 0; z-index: 30; background: var(--white); box-shadow: 0 2px 12px rgba(35,40,74,.06); }
.header-inner { display: flex; align-items: center; gap: 28px; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-text { font-family: var(--font); font-weight: 800; font-size: 24px; letter-spacing: .02em; color: var(--blue); }
.brand-text b { font-weight: 800; color: var(--yellow); margin-left: 4px; }
.nav { display: flex; gap: 30px; list-style: none; margin: 0 0 0 16px; padding: 0; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--blue); }
.header-inner > .btn { margin-left: auto; }
@media (max-width: 800px) { .nav { display: none; } }

/* Hero: full-bleed warm-blue gradient with collage */
.hero {
  position: relative; overflow: hidden; color: #fff;
  padding: clamp(40px, 6vw, 72px) 0 clamp(72px, 9vw, 112px);
  background:
    radial-gradient(circle at 85% 20%, rgba(255,194,26,.35), transparent 40%),
    linear-gradient(135deg, #2B8BF2 0%, #1677E5 45%, #0D56B0 100%);
}
.hero::before {
  content: "九州"; position: absolute; left: -2%; bottom: -8%;
  font-family: var(--jp); font-weight: 800; font-size: clamp(180px, 28vw, 380px);
  color: rgba(255,255,255,.07); line-height: 1; pointer-events: none;
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(24px, 4vw, 48px); align-items: center; }
.eyebrow-jp { display: inline-block; font-family: var(--jp); background: rgba(255,255,255,.18); color: #fff; font-weight: 700; padding: 5px 16px; border-radius: 999px; margin-bottom: 18px; font-size: 15px; }
.hero h1 { font-weight: 800; font-size: clamp(46px, 7vw, 84px); line-height: 1.02; letter-spacing: -.01em; }
.hero-sub { font-weight: 700; font-size: clamp(20px, 2.4vw, 26px); line-height: 1.3; margin-top: 18px; max-width: 18em; }
.lede { font-size: 17px; margin-top: 14px; max-width: 30em; color: #E3EEFF; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero-badges { list-style: none; padding: 0; margin: 26px 0 0; display: flex; flex-wrap: wrap; gap: 18px; }
.hero-badges li { font-size: 14px; font-weight: 500; display: flex; align-items: center; gap: 6px; }
.hero-badges li::before { content: "✓"; width: 20px; height: 20px; border-radius: 50%; background: var(--yellow); color: var(--ink); font-size: 12px; font-weight: 800; display: grid; place-items: center; }
.hero-art {
  width: 100%; max-width: 560px; justify-self: center;
  background: #fff; border-radius: 28px; padding: 18px; transform: rotate(2deg);
  box-shadow: 0 24px 60px rgba(4, 30, 80, .35);
}
.hero-art svg { background: var(--yellow-light); border-radius: 18px; }
.can-text { font-family: var(--jp); font-weight: 800; font-size: 26px; fill: #0E7A63; }
.box-jp { font-family: var(--jp); font-weight: 800; font-size: 22px; fill: var(--blue-deep); }
.box-en { font-family: var(--font); font-weight: 800; font-size: 13px; letter-spacing: .18em; fill: var(--pink); }
.hero-wave { position: absolute; bottom: -1px; left: 0; width: 100%; height: 60px; }
.hero-wave path { fill: var(--white); }

@media (prefers-reduced-motion: no-preference) {
  .pop { animation: bob 3.4s ease-in-out infinite; transform-box: fill-box; transform-origin: center; }
  .pop2 { animation-delay: -.8s; } .pop3 { animation-delay: -1.6s; } .pop4 { animation-delay: -2.2s; } .pop5 { animation-delay: -.4s; }
  @keyframes bob { 0%,100% { transform: translateY(0) rotate(0); } 50% { transform: translateY(-9px) rotate(4deg); } }
}
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { max-width: 380px; order: 2; transform: rotate(1.5deg); }
}

/* Sections */
.section { padding: clamp(64px, 9vw, 104px) 0; scroll-margin-top: 80px; }
.section-tint { background: var(--bg-soft); }
.sec-head { text-align: center; margin: 0 auto 44px; max-width: 640px; display: flex; flex-direction: column; align-items: center; }
.sec-head > div { display: flex; flex-direction: column; align-items: center; }
.sec-num { font-weight: 800; font-size: 15px; color: var(--yellow); background: none; letter-spacing: .1em; margin-bottom: 4px; }
.sec-num::before { content: "— "; } .sec-num::after { content: " —"; }
.sec-jp { font-family: var(--jp); color: var(--blue); font-weight: 700; font-size: 15px; letter-spacing: .14em; margin-bottom: 6px; }
.sec-jp-light { color: var(--yellow); }
.fineprint { font-size: 13px; color: var(--muted); margin-top: 24px; text-align: center; }

.badge { display: inline-block; font-weight: 700; font-size: 14px; padding: 5px 16px; border-radius: 999px; }
.badge-pink { background: var(--pink); color: #fff; }

/* 01 theme banner */
.theme-banner {
  position: relative; display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 24px;
  background: linear-gradient(120deg, #FFE48A, var(--yellow)); border-radius: 32px; box-shadow: var(--shadow);
  padding: clamp(28px, 5vw, 60px); overflow: hidden;
}
.theme-banner::after {
  content: "佐賀"; position: absolute; right: -10px; bottom: -40px; font-family: var(--jp); font-weight: 800;
  font-size: 200px; color: rgba(255,255,255,.35); line-height: 1; pointer-events: none;
}
.theme-copy { position: relative; z-index: 1; }
.theme-copy h3 { font-weight: 800; font-size: clamp(38px, 5vw, 58px); margin: 14px 0 12px; }
.theme-copy p { max-width: 30em; margin-bottom: 26px; }
.theme-art { position: relative; z-index: 1; max-width: 340px; justify-self: center; width: 100%; }
.deadline {
  position: absolute; top: 22px; right: 22px; z-index: 2; background: var(--white); color: var(--blue);
  font-weight: 700; padding: 8px 18px; border-radius: 999px; font-size: 14px; box-shadow: var(--shadow);
}
@media (max-width: 760px) { .theme-banner { grid-template-columns: 1fr; padding-top: 72px; } .theme-art { max-width: 220px; order: -1; } }

/* 02 about */
.about-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 3vw, 30px); }
.about-card { background: #fff; border-radius: var(--radius); padding: 32px 28px; box-shadow: var(--shadow); text-align: center; transition: transform .2s, box-shadow .2s; }
.about-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.about-icon { width: 96px; height: 96px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 20px; }
.about-icon svg { width: 58px; }
.c-blue .about-icon { background: var(--blue); }
.c-yellow .about-icon { background: var(--yellow); }
.c-pink .about-icon { background: var(--pink); }
.about-card p { color: var(--muted); margin-top: 10px; font-size: 16px; }
@media (max-width: 860px) { .about-cards { grid-template-columns: 1fr; } }

/* 03 inside */
.inside-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.snack-grid { list-style: none; margin: 0; padding: 22px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; background: var(--bg-soft); border-radius: 28px; }
.snack {
  aspect-ratio: 1; border-radius: 16px; padding: 14px; display: flex; flex-direction: column; justify-content: flex-end;
  background: #fff; box-shadow: 0 3px 10px rgba(35,40,74,.07);
}
.snack-jp { font-family: var(--jp); font-weight: 800; font-size: clamp(17px, 2vw, 22px); line-height: 1.15; margin-bottom: auto; color: var(--blue-deep); }
.snack strong { font-size: 15px; line-height: 1.3; }
.snack small { font-size: 12px; color: var(--muted); }
.s1 { background: #FFE8EF; } .s2 { background: #DDF6EE; } .s3 { background: var(--blue-light); }
.s4 { background: var(--yellow-light); } .s5 { background: #E6F3E8; } .s6 { background: #FFF2C2; }
.features { list-style: none; margin: 0; padding: 0; counter-reset: f; display: grid; gap: 30px; }
.features li { counter-increment: f; display: grid; grid-template-columns: 56px 1fr; column-gap: 16px; }
.features li::before {
  content: counter(f); grid-row: span 2; font-weight: 800; font-size: 54px; line-height: .9; color: var(--yellow);
}
.features p { color: var(--muted); margin-top: 6px; }
@media (max-width: 860px) { .inside-grid { grid-template-columns: 1fr; } }
@media (max-width: 420px) { .snack-grid { grid-template-columns: repeat(2, 1fr); padding: 14px; } }

/* Promo banner */
.promo { padding: 0 0 clamp(48px, 7vw, 80px); }
.promo-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 28px; flex-wrap: wrap;
  background: linear-gradient(110deg, #3FA2F7, var(--blue)); color: #fff; border-radius: 28px;
  padding: clamp(28px, 4vw, 48px); box-shadow: var(--shadow);
}
.promo-inner > div { max-width: 660px; }
.promo-tag { font-weight: 700; color: var(--blue); background: #fff; display: inline-block; padding: 3px 14px; border-radius: 999px; font-size: 14px; margin-bottom: 12px; }
.promo h2 { font-size: clamp(24px, 3vw, 32px); }
.promo p { margin-top: 8px; color: #E3EEFF; }

/* 04 crew */
.crew { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(24px, 5vw, 56px); align-items: center; }
.crew > * { min-width: 0; }
.crew-text { font-size: 19px; }
.crew-tiles { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.crew-tiles li {
  aspect-ratio: 1; border-radius: 18px; display: grid; place-items: center; box-shadow: var(--shadow);
  font-family: var(--jp); font-weight: 800; font-size: clamp(18px, 2.4vw, 26px); color: #fff;
}
.t1 { background: var(--blue); } .t2 { background: var(--pink); } .t3 { background: var(--mint); } .t4 { background: #FF8A5B; }
.t5 { background: #8C6CF0; } .t6 { background: var(--yellow); color: var(--ink) !important; } .t7 { background: var(--blue-deep); }
.t8 { background: #fff; color: var(--muted) !important; box-shadow: inset 0 0 0 2px var(--line) !important; font-family: var(--font) !important; }
@media (max-width: 860px) { .crew { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 480px) { .crew-tiles { gap: 8px; } .crew-tiles li { font-size: 16px; border-radius: 14px; } }

/* 05 plans */
.plans-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(20px, 4vw, 40px); align-items: start; }
.plan-picker { border: 0; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.plan-card {
  position: relative; cursor: pointer; background: #fff; border-radius: var(--radius); padding: 26px 24px 22px;
  display: grid; gap: 4px; box-shadow: var(--shadow); border: 2px solid transparent; transition: border-color .15s, transform .15s;
}
.plan-card:hover { transform: translateY(-2px); }
.plan-card input { position: absolute; opacity: 0; pointer-events: none; }
.plan-card:has(input:checked) { border-color: var(--blue); background: var(--blue-light); }
.plan-card:has(input:focus-visible) { outline: 3px solid var(--pink); outline-offset: 3px; }
.plan-len { font-weight: 700; font-size: 18px; }
.plan-price { font-weight: 800; font-size: 40px; color: var(--blue); line-height: 1.1; }
.plan-price small { font-size: 15px; font-weight: 500; color: var(--muted); margin-left: 4px; }
.plan-save { font-weight: 700; color: var(--pink); font-size: 15px; }
.ribbon { position: absolute; top: -13px; left: 50%; translate: -50% 0; background: var(--yellow); font-weight: 800; font-size: 13px; padding: 3px 14px; border-radius: 999px; white-space: nowrap; }
.plan-summary { background: #fff; border-radius: 24px; padding: 30px; position: sticky; top: 96px; box-shadow: var(--shadow-hover); border-top: 6px solid var(--yellow); }
.sum-label { color: var(--muted); font-weight: 500; font-size: 14px; }
.sum-plan { font-weight: 800; font-size: 28px; margin-top: 2px; }
.sum-total { margin: 6px 0 18px; }
.sum-total span { font-weight: 800; font-size: 46px; color: var(--blue); }
.sum-total small { color: var(--muted); display: block; }
.sum-list { margin: 0 0 24px; padding: 0; list-style: none; display: grid; gap: 8px; }
.sum-list li { padding-left: 30px; position: relative; }
.sum-list li::before { content: "✓"; position: absolute; left: 0; top: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--mint); color: #fff; font-size: 12px; font-weight: 800; display: grid; place-items: center; }
.sum-note { font-size: 13px; color: var(--muted); margin-top: 16px; }
@media (max-width: 900px) { .plans-grid { grid-template-columns: 1fr; } .plan-summary { position: static; } }
@media (max-width: 480px) { .plan-picker { grid-template-columns: 1fr; } }

/* FAQ */
.faq-wrap { max-width: 860px; }
.faq-list { display: grid; gap: 12px; }
details { background: #fff; border-radius: 16px; box-shadow: 0 3px 12px rgba(35,40,74,.06); }
summary { cursor: pointer; list-style: none; padding: 20px 60px 20px 24px; position: relative; font-weight: 700; font-size: 18px; }
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%; translate: 0 -50%; width: 30px; height: 30px; border-radius: 50%;
  background: var(--blue-light); color: var(--blue); display: grid; place-items: center; font-size: 20px; line-height: 1; transition: rotate .2s;
}
details[open] summary::after { rotate: 45deg; }
details p { padding: 0 24px 22px; color: var(--muted); }

/* Waitlist */
.waitlist {
  background: linear-gradient(135deg, #2B8BF2, var(--blue-deep)); color: #fff; padding: clamp(64px, 9vw, 104px) 0; scroll-margin-top: 80px;
}
.waitlist-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.waitlist h2 { margin-top: 6px; font-weight: 800; }
.waitlist-grid > div p:last-child { margin-top: 14px; color: #E3EEFF; max-width: 30em; }
.form { background: #fff; color: var(--ink); border-radius: 24px; box-shadow: 0 20px 50px rgba(4,30,80,.3); padding: clamp(22px, 4vw, 36px); display: grid; gap: 6px; }
.form label, .form legend { font-weight: 700; font-size: 15px; }
.form input[type="email"], .form select {
  width: 100%; font: inherit; padding: 13px 16px; border: 1.5px solid var(--line); border-radius: 12px;
  background: var(--bg-soft); color: var(--ink); margin-bottom: 12px;
}
.form input[type="email"]:focus, .form select:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(22,119,229,.18); }
.form [aria-invalid="true"] { border-color: #D7263D; background: #FFF0F2; }
.form fieldset { border: 0; padding: 0; margin: 0 0 10px; display: grid; gap: 4px; }
.form .check { font-weight: 400; display: flex; gap: 10px; align-items: center; }
.form .check input { width: 18px; height: 18px; accent-color: var(--blue); }
.form .btn { justify-self: start; margin-top: 6px; }
.form-plan-note { font-size: 14px; color: var(--muted); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { min-height: 1.5em; font-size: 15px; font-weight: 700; }
.form-status.ok { color: #0E7A63; }
.form-status.err { color: #D7263D; }
@media (max-width: 860px) { .waitlist-grid { grid-template-columns: 1fr; } }

/* Footer */
.site-footer { background: var(--ink); color: #C6CADB; padding: 44px 0; font-size: 14px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 24px 48px; justify-content: space-between; align-items: flex-start; }
.brand-footer { margin-bottom: 6px; }
.footer-links { list-style: none; display: flex; gap: 24px; margin: 0; padding: 0; }
.footer-links a { color: #fff; font-weight: 500; }
.copy { width: 100%; color: #8D92A8; }
@media (max-width: 420px) { .header-inner { gap: 12px; } .brand-text { font-size: 20px; } .brand img { width: 32px; height: 32px; } .header-inner > .btn { padding: 8px 16px; font-size: 14px; } }