/* ============================================================
   demo: online-coaching「ひらく」
   _template/plain-html を再スキン。:root と一部の display ウェイトのみ調整。
   ============================================================ */

:root {
  /* ── 配色（コーチング：温かく前向き） ──────────────── */
  --paper:      #faf6ef;
  --paper-2:    #f1eadd;
  --ink:        #221f1b;
  --muted:      #6e655a;
  --line:       #e4dccd;
  --card:       #ffffff;
  --accent:     #e0583e;   /* 柿色：前向き・行動を促す */
  --accent-ink: #ffffff;
  --accent-2:   #2f6b5e;   /* 深緑：信頼の副色 */

  /* ── フォント（和文対応） ───────────────────────────── */
  --font-display: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-body:    "Zen Kaku Gothic New", "Hiragino Sans", "Helvetica Neue", sans-serif;

  --radius:    18px;
  --radius-sm: 10px;
  --shadow:    0 18px 50px -24px rgba(34, 31, 27, .35);
  --shadow-sm: 0 8px 24px -16px rgba(34, 31, 27, .4);
  --container: 1140px;
  --pad-x:     clamp(20px, 5vw, 48px);
  --section-y: clamp(72px, 11vw, 140px);
  --ease: cubic-bezier(.22, 1, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.85;
  font-size: clamp(15px, 1.05vw, 17px);
  letter-spacing: .02em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--pad-x); }
.section { padding-block: var(--section-y); position: relative; }
.section--alt { background: var(--paper-2); }

.eyebrow { font-weight: 700; font-size: .8rem; letter-spacing: .22em; text-transform: uppercase; color: var(--accent); }
.section__head { max-width: 640px; margin: 0 auto clamp(40px, 6vw, 72px); text-align: center; }
.section__head--left { text-align: left; margin-inline: 0; }
.section__title { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.9rem, 4.4vw, 3rem); line-height: 1.3; letter-spacing: .01em; margin-top: .4em; }
.accent { color: var(--accent); }

.btn {
  --b: var(--ink);
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .82em 1.5em; border-radius: 999px; font-weight: 700; font-size: .95rem;
  border: 1.5px solid var(--b);
  transition: transform .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn--solid { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); box-shadow: var(--shadow-sm); }
.btn--solid:hover { box-shadow: 0 16px 34px -16px var(--accent); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--inverse { background: var(--paper); border-color: var(--paper); color: var(--ink); }
.btn--lg { padding: 1em 1.9em; font-size: 1rem; }
.btn--block { display: flex; width: 100%; }

.site-header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(10px);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  border-bottom: 1px solid transparent; transition: border-color .3s, background-color .3s;
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.header__inner { display: flex; align-items: center; gap: 1.5rem; min-height: 72px; }
.brand { display: inline-flex; align-items: center; gap: .6em; font-weight: 700; }
.brand__name { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; letter-spacing: .04em; }
.brand__mark { width: 22px; height: 22px; border-radius: 7px; background: var(--accent); box-shadow: inset 0 0 0 3px color-mix(in srgb, var(--accent-ink) 60%, transparent); transform: rotate(8deg); }
.nav { display: flex; gap: 1.6rem; margin-left: auto; }
.nav a { font-weight: 500; font-size: .95rem; position: relative; padding-block: 4px; color: var(--muted); transition: color .2s; }
.nav a::after { content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0; background: var(--accent); transition: width .3s var(--ease); }
.nav a:hover { color: var(--ink); }
.nav a:hover::after { width: 100%; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; margin-left: auto; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-nav { display: none; flex-direction: column; gap: .25rem; padding: 1rem var(--pad-x) 1.5rem; border-top: 1px solid var(--line); background: var(--paper); }
.mobile-nav a { padding: .8rem .2rem; font-weight: 700; border-bottom: 1px solid var(--line); }
.mobile-nav a.btn { border: 1.5px solid var(--accent); margin-top: .75rem; }

.bg-grain {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.04'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}
.bg-glow { position: fixed; top: -10%; right: -5%; z-index: 0; pointer-events: none; width: 60vw; height: 60vw; max-width: 720px; max-height: 720px; background: radial-gradient(circle at center, color-mix(in srgb, var(--accent) 26%, transparent), transparent 62%); filter: blur(20px); }
main, .site-header, .site-footer { position: relative; z-index: 2; }

.hero { padding-block: clamp(72px, 12vw, 150px) var(--section-y); }
.hero__inner { max-width: 900px; }
.hero__title { font-family: var(--font-display); font-weight: 700; font-size: clamp(2.1rem, 5.6vw, 4.2rem); line-height: 1.32; letter-spacing: .01em; margin-block: .3em .55em; }
.hero__title .ln { display: block; }
.hero__lead { font-size: clamp(1.05rem, 1.8vw, 1.25rem); color: var(--muted); max-width: 52ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.4rem; }
.hero__stats { display: flex; flex-wrap: wrap; gap: clamp(2rem, 6vw, 4rem); margin-top: 3.4rem; padding-top: 2.4rem; border-top: 1px solid var(--line); }
.hero__stats dt { font-size: .82rem; color: var(--muted); letter-spacing: .05em; }
.hero__stats dd { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 600; line-height: 1; margin-top: .25em; }
.hero__stats dd span { font-size: .5em; color: var(--accent); margin-left: .1em; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.2rem, 2.5vw, 2rem); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.8rem, 3vw, 2.6rem); transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.card__icon { display: inline-flex; align-items: center; justify-content: center; width: 54px; height: 54px; border-radius: 14px; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin-bottom: 1.2rem; }
.card h3 { font-family: var(--font-display); font-weight: 600; font-size: 1.4rem; margin-bottom: .5rem; line-height: 1.5; }
.card p { color: var(--muted); }

.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.2rem, 2.5vw, 1.8rem); align-items: start; }
.plan { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.8rem, 3vw, 2.6rem); display: flex; flex-direction: column; gap: 1.2rem; }
.plan--featured { border-color: var(--accent); box-shadow: var(--shadow); transform: translateY(-12px); }
.plan__badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--accent); color: var(--accent-ink); font-size: .78rem; font-weight: 700; letter-spacing: .06em; padding: .35em 1.1em; border-radius: 999px; white-space: nowrap; }
.plan__name { font-family: var(--font-display); font-weight: 600; font-size: 1.35rem; }
.plan__price { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.6rem); font-weight: 600; line-height: 1; }
.plan__cur { font-size: .5em; vertical-align: .35em; margin-right: .1em; }
.plan__unit { font-size: .4em; color: var(--muted); }
.plan__list { display: flex; flex-direction: column; gap: .7rem; flex: 1; }
.plan__list li { position: relative; padding-left: 1.6em; color: var(--muted); }
.plan__list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

.voices { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.2rem, 2.5vw, 2rem); }
.voice { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.8rem, 3vw, 2.4rem); display: flex; flex-direction: column; gap: 1.4rem; }
.voice blockquote { font-family: var(--font-display); font-size: 1.12rem; line-height: 1.85; }
.voice blockquote::before { content: "“"; color: var(--accent); font-size: 1.6em; line-height: 0; vertical-align: -.3em; margin-right: .05em; }
.voice figcaption { display: flex; align-items: center; gap: .7em; font-size: .9rem; color: var(--muted); margin-top: auto; }
.voice__avatar { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--accent-2); color: #fff; font-weight: 700; flex: none; }

.cta-band { background: var(--ink); color: var(--paper); padding-block: clamp(56px, 9vw, 110px); }
.cta-band__inner { text-align: center; max-width: 640px; margin-inline: auto; display: grid; gap: 1.2rem; justify-items: center; }
.cta-band h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.4; }
.cta-band p { color: color-mix(in srgb, var(--paper) 75%, transparent); }

.contact__inner { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact__note { color: var(--muted); margin-top: 1rem; }
.form { display: grid; gap: 1.2rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.6rem, 3vw, 2.4rem); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.form label { display: grid; gap: .5rem; font-weight: 700; font-size: .9rem; }
.form input, .form textarea { font: inherit; font-weight: 400; padding: .85em 1em; border: 1.5px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); color: var(--ink); transition: border-color .2s; }
.form input:focus, .form textarea:focus { outline: none; border-color: var(--accent); }
.form textarea { resize: vertical; }

.site-footer { background: var(--paper-2); border-top: 1px solid var(--line); padding-block: clamp(40px, 6vw, 64px); }
.footer__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 1.4rem 2rem; }
.footer__brand { display: inline-flex; align-items: center; gap: .6em; font-weight: 700; }
.footer__nav { display: flex; gap: 1.4rem; }
.footer__nav a { color: var(--muted); font-size: .92rem; transition: color .2s; }
.footer__nav a:hover { color: var(--ink); }
.footer__copy { margin-left: auto; color: var(--muted); font-size: .85rem; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal.is-visible[data-reveal-delay="1"] { transition-delay: .08s; }
.reveal.is-visible[data-reveal-delay="2"] { transition-delay: .16s; }
.reveal.is-visible[data-reveal-delay="3"] { transition-delay: .24s; }
.reveal.is-visible[data-reveal-delay="4"] { transition-delay: .32s; }

@media (max-width: 900px) {
  .cards, .voices { grid-template-columns: 1fr 1fr; }
  .plans { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .plan--featured { transform: none; }
  .contact__inner { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .nav, .header__cta { display: none; }
  .nav-toggle { display: flex; }
  .mobile-nav:not([hidden]) { display: flex; }
  .cards, .voices { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__copy { margin-left: 0; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
}