/* ==========================================================================
   ハジメル.dev — styles.css
   ========================================================================== */

:root {
  /* color tokens */
  --bg: #FAFAF7;
  --bg-alt: #F4F2EC;
  --card: #F0EDE6;
  --dark: #0F172A;
  --dark-2: #0a0f1e;
  --mid: #64748B;
  --soft: #94A3B8;
  --border: #C8C5BE;
  --line: #E5E2DA;
  --accent: #FF6B6B;
  --accent-hover: #ff5757;
  --accent-light: #FFE8E8;
  --green: #10B981;
  --green-light: #D1FAE5;
  --blue-soft: #F0F4FF;
  --white: #ffffff;

  /* spacing rhythm（不均等） */
  --space-section-xs: 56px;
  --space-section-sm: 80px;
  --space-section-md: 96px;
  --space-section-lg: 120px;
  --space-section-xl: 160px;

  /* fonts */
  --font-sans: 'Noto Sans JP', system-ui, -apple-system, 'Hiragino Kaku Gothic ProN', sans-serif;
  --font-serif: 'Noto Serif JP', 'Hiragino Mincho ProN', serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* radii */
  --r-sm: 6px;
  --r-md: 12px;
  --r-lg: 20px;

  /* container */
  --container: 1080px;
  --pad: 20px;

  /* 装飾レイヤー（温かみ強化用） */
  --noise-opacity: 0.035;
  --blob-coral: rgba(255, 107, 107, 0.10);
  --blob-green: rgba(16, 185, 129, 0.10);
  --shadow-warm: 0 6px 22px rgba(120, 80, 70, 0.08);
  --shadow-warm-lg: 0 18px 50px rgba(120, 80, 70, 0.14);
}

/* reset --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--dark);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.8;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
button { font: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

/* グレインノイズ（紙の質感）------------------------------------------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 200;
  opacity: var(--noise-opacity);
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.55 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  background-size: 240px 240px;
}

/* skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--dark); color: var(--white);
  padding: 8px 12px; z-index: 100;
}
.skip-link:focus { left: 8px; top: 8px; }

/* container */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* section heading */
.section__h {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--dark);
  margin-bottom: 8px;
}
.section__h--serif {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.section__h--light { color: var(--white); }
.section__lede {
  font-size: 14px;
  color: var(--mid);
  margin-bottom: 32px;
  line-height: 1.9;
}
.br-mobile { display: inline; }

/* buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  border-radius: 999px;
  padding: 14px 24px;
  transition: transform .18s ease, background-color .18s ease, box-shadow .18s ease;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn__arrow {
  display: inline-block;
  transition: transform .18s ease;
}
.btn:hover .btn__arrow { transform: translateX(3px); }

.btn--primary {
  --mag-x: 0px;
  --mag-y: 0px;
  --hov-y: 0px;
  --hov-rot: 0deg;
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(255,107,107,0.28);
  transform: translate(var(--mag-x), calc(var(--mag-y) + var(--hov-y))) rotate(var(--hov-rot));
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.btn--primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,0.32) 50%, transparent 70%);
  transform: translateX(-110%);
  transition: transform .8s cubic-bezier(.22,1,.36,1);
  pointer-events: none;
  z-index: -1;
  animation: hd-shine-auto 7s cubic-bezier(.22,1,.36,1) 2s infinite;
}
@keyframes hd-shine-auto {
  0%, 88% { transform: translateX(-110%); }
  100%    { transform: translateX(110%); }
}
.btn--primary:hover {
  background: var(--accent-hover);
  --hov-y: -1px;
  --hov-rot: -0.6deg;
  box-shadow: 0 6px 18px rgba(255,107,107,0.36);
}
.btn--primary:hover::before {
  transform: translateX(110%);
}

.btn--white {
  --mag-x: 0px;
  --mag-y: 0px;
  --hov-y: 0px;
  --hov-rot: 0deg;
  background: var(--white);
  color: var(--dark);
  box-shadow: 0 4px 14px rgba(0,0,0,0.10);
  transform: translate(var(--mag-x), calc(var(--mag-y) + var(--hov-y))) rotate(var(--hov-rot));
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.btn--white::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255,107,107,0.16) 50%, transparent 70%);
  transform: translateX(-110%);
  transition: transform .8s cubic-bezier(.22,1,.36,1);
  pointer-events: none;
  z-index: -1;
}
.btn--white:hover {
  --hov-y: -1px;
  --hov-rot: -0.6deg;
  box-shadow: 0 6px 18px rgba(0,0,0,0.18);
}
.btn--white:hover::before {
  transform: translateX(110%);
}

.btn--nav {
  --mag-x: 0px;
  --mag-y: 0px;
  background: var(--accent);
  color: var(--white);
  padding: 10px 18px;
  font-size: 13px;
  transform: translate(var(--mag-x), var(--mag-y));
}
.btn--nav:hover {
  background: var(--accent-hover);
}

/* underline (SVG) ----------------------------------------------------- */
.u-underline {
  display: inline-block;
  position: relative;
  padding-bottom: 0.08em;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 220 14' preserveAspectRatio='none'><path d='M3,9 Q55,2 110,7 T217,5' stroke='%23FF6B6B' stroke-width='3.2' fill='none' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 0 0.42em;
  transition: background-size 1.05s cubic-bezier(.55,.05,.25,1) .1s;
}
.u-underline.is-drawn,
:root.is-loaded .u-underline {
  background-size: 100% 0.42em;
}

/* nav ----------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15,23,42,0.92);
  backdrop-filter: saturate(160%) blur(6px);
  -webkit-backdrop-filter: saturate(160%) blur(6px);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background-color .25s ease, backdrop-filter .25s ease, box-shadow .25s ease;
}
.nav.is-scrolled {
  background: rgba(15,23,42,0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.18);
}

/* スクロール進捗バー（nav 下端に貼り付き） */
.scroll-progress {
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 2px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--accent), #FFB199 60%, var(--green));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .12s linear;
  will-change: transform;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 16px;
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.nav__name { font-size: 15px; }
.nav__links {
  display: none;
  gap: 24px;
  font-size: 13px;
  color: rgba(255,255,255,0.78);
}
.nav__links a {
  transition: color .15s ease;
}
.nav__links a:hover { color: var(--white); }

@media (min-width: 768px) {
  .nav__links { display: flex; }
}

/* HERO §1 ------------------------------------------------------------- */
.hero {
  background:
    radial-gradient(1200px 480px at 92% -20%, var(--blob-coral), transparent 60%),
    radial-gradient(900px 400px at -10% 110%, var(--blob-green), transparent 60%),
    var(--white);
  color: var(--dark);
  padding-top: var(--space-section-sm);
  padding-bottom: var(--space-section-sm);
  position: relative;
  overflow: hidden;
}

/* Hero ドゥードル装飾 */
.hero__doodles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.hero__doodle {
  position: absolute;
  opacity: 0;
  animation: hd-doodle-in .9s ease-out forwards;
}
@keyframes hd-doodle-in {
  from { opacity: 0; transform: translateY(8px) rotate(-6deg); }
  to   { opacity: 0.85; transform: translateY(0) rotate(0); }
}
.hero__doodle--star {
  top: 28px; right: 6%;
  animation-delay: .35s;
  animation-name: hd-doodle-spin-in;
}
@keyframes hd-doodle-spin-in {
  from { opacity: 0; transform: scale(.5) rotate(-30deg); }
  to   { opacity: 0.85; transform: scale(1) rotate(0); }
}
.hero__doodle--star:hover { animation: hd-spin 4s linear infinite; }
@keyframes hd-spin {
  to { transform: rotate(360deg); }
}
.hero__doodle--squiggle {
  bottom: 88px; left: 6%;
  animation-delay: .55s;
  animation-name: hd-doodle-in-tilt;
  transform-origin: 100% 50%;
}
@keyframes hd-doodle-in-tilt {
  from { opacity: 0; transform: translateY(8px) rotate(-30deg); }
  to   { opacity: 0.85; transform: translateY(0) rotate(-22deg); }
}
.hero__doodle--heart {
  top: 42%; right: 3%;
  animation-delay: .75s;
  animation-name: hd-heart-in;
}
@keyframes hd-heart-in {
  0%   { opacity: 0; transform: scale(.5); }
  60%  { opacity: 0.9; transform: scale(1.18); }
  100% { opacity: 0.7; transform: scale(1); }
}
.hero__doodle--dots {
  top: 14%; left: 38%;
  animation-delay: .9s;
  opacity: 0.7;
}
.hero__grid { position: relative; z-index: 1; }

@media (max-width: 767px) {
  .hero__doodle--heart { top: auto; bottom: 12%; right: 6%; }
  .hero__doodle--dots { display: none; }
  .hero__doodle--star { width: 42px; height: 42px; right: 8%; top: 16px; }
}
.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}
.hero__text, .hero__editor { min-width: 0; }
.hero__eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent);
  background: var(--accent-light);
  border: 1px solid rgba(255,107,107,0.30);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero__title {
  font-size: clamp(28px, 6vw, 44px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.01em;
  margin-bottom: 18px;
  color: var(--dark);
}
.hero__subtitle {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(15px, 2.4vw, 18px);
  color: var(--dark);
  margin-bottom: 18px;
  line-height: 1.7;
}
.hero__lede {
  color: var(--mid);
  font-size: 14px;
  line-height: 1.95;
  margin-bottom: 22px;
}
.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 28px;
  font-size: 12px;
  color: var(--dark);
}
.hero__badges li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
}
.hero__badges span { color: var(--green); font-size: 8px; }
.hero__cta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}
.hero__note {
  font-size: 12px;
  color: var(--soft);
}

/* editor mock */
.hero__editor {
  background: #0b1226;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--r-md);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.85;
  box-shadow: 0 18px 50px rgba(0,0,0,0.35);
}
.editor__chrome {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  background: #060a1a;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.editor__dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.editor__dot--r { background: #FF6B6B; }
.editor__dot--y { background: #FFC94B; }
.editor__dot--g { background: #4ADE80; }
.editor__tab {
  margin-left: 12px;
  font-size: 11px;
  color: rgba(255,255,255,0.45);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.editor__unsaved {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #FFC94B;
  box-shadow: 0 0 6px rgba(255,201,75,0.6);
  animation: hd-unsaved-pulse 2.4s ease-in-out infinite;
}
@keyframes hd-unsaved-pulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.18); }
}
.editor__body {
  margin: 0;
  padding: 14px 14px 16px;
  color: #E5E7EB;
  white-space: pre;
  overflow-x: auto;
  transition: opacity .6s ease;
}
.editor__body.is-fading { opacity: 0; }
.editor__body .ln {
  display: inline-block;
  width: 1.6em;
  color: #475569;
  user-select: none;
  margin-right: 6px;
  text-align: right;
}
.editor__body.is-typing .ln {
  opacity: 0;
  transition: opacity .28s ease;
}
.editor__body.is-typing .ln.is-shown {
  opacity: 1;
}
.editor__body .kw { color: #C084FC; }
.editor__body .fn { color: #60A5FA; }
.editor__body .tag { color: #FB7185; }
.editor__body .str { color: #FCD34D; }
.editor__body .cm { color: #64748B; font-style: italic; }
.editor__body.is-done .cm {
  animation: hd-cm-pulse 4s ease-in-out infinite;
}
@keyframes hd-cm-pulse {
  0%, 100% { opacity: 0.65; }
  50% { opacity: 1; }
}

/* タイピングカーソル — JSで textNode 直後に挿入される .caret span */
.editor__body .caret {
  display: inline-block;
  color: #FF6B6B;
  font-weight: 400;
  animation: hd-blink 1s steps(2, end) infinite;
  vertical-align: baseline;
}
.editor__body.is-done .caret { display: none; }
@keyframes hd-blink {
  50% { opacity: 0; }
}

@media (min-width: 768px) {
  .hero { padding-top: var(--space-section-md); padding-bottom: var(--space-section-md); }
  .hero__grid { grid-template-columns: 1fr 1.5fr; gap: 56px; align-items: center; }
  .hero__editor { font-size: 18px; line-height: 1.8; }
  .editor__body { padding: 22px 22px 26px; }
  .editor__chrome { padding: 12px 16px; }
  .editor__dot { width: 12px; height: 12px; }
  .editor__tab { font-size: 13px; }
  .br-mobile { display: none; }
}

/* §2 jisseki ---------------------------------------------------------- */
.jisseki {
  background: var(--bg);
  padding-top: var(--space-section-xs);
  padding-bottom: var(--space-section-xs);
  border-bottom: 1px solid var(--line);
}
.jisseki__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.jisseki__card {
  background: var(--card);
  border-radius: var(--r-md);
  padding: 22px 18px;
  text-align: center;
  border: 1px solid var(--line);
}
.jisseki__num {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 36px;
  color: var(--dark);
  letter-spacing: 0.01em;
  line-height: 1;
}
.jisseki__num span {
  font-size: 16px;
  color: var(--accent);
  margin-left: 4px;
}
.jisseki__label {
  margin-top: 10px;
  font-size: 12px;
  color: var(--mid);
  font-weight: 500;
}
@media (min-width: 768px) {
  .jisseki__grid { grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .jisseki__card { padding: 28px 18px; }
  .jisseki__num { font-size: 44px; }
  .jisseki__num span { font-size: 18px; }
  .jisseki__label { font-size: 13px; }
}

/* §3 nayami ----------------------------------------------------------- */
.nayami {
  background: var(--white);
  padding-top: var(--space-section-md);
  padding-bottom: var(--space-section-sm);
}
.nayami__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 12px;
}
.nayami__card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 22px 20px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform .25s cubic-bezier(.22,1,.36,1), box-shadow .25s ease;
  will-change: transform;
}
.nayami__card:hover {
  box-shadow: var(--shadow-warm);
}
.nayami__no {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 28px;
  color: var(--accent);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 8px;
}
.nayami__card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.nayami__card p {
  font-size: 13.5px;
  color: var(--mid);
  line-height: 1.85;
}
.nayami__bridge {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 36px;
  padding-left: 4px;
}
.nayami__bridge-text {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 14px;
  color: var(--accent);
}
@media (min-width: 768px) {
  .nayami__list { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .nayami__card { padding: 28px 24px; }
  .nayami__card h3 { font-size: 17px; }
}

/* §4 riyu ------------------------------------------------------------- */
.riyu {
  background: var(--bg);
  padding-top: var(--space-section-lg);
  padding-bottom: var(--space-section-sm);
}
.riyu__list {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.riyu__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}
.riyu__item:last-child { border-bottom: 1px solid var(--line); }
.riyu__num {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 48px;
  color: var(--dark);
  opacity: 0.18;
  line-height: 1;
  letter-spacing: 0.02em;
}
.riyu__body h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.riyu__body p {
  color: var(--mid);
  font-size: 14px;
  line-height: 1.95;
}
@media (min-width: 768px) {
  .riyu__item { grid-template-columns: 100px 1fr; gap: 32px; padding: 36px 0; }
  .riyu__num { font-size: 64px; }
  .riyu__body h3 { font-size: 19px; }
}

/* §5 yakusoku --------------------------------------------------------- */
.yakusoku {
  background: var(--blue-soft);
  padding-top: var(--space-section-md);
  padding-bottom: var(--space-section-sm);
}
.yakusoku__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 24px;
}
.yakusoku__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  background: var(--white);
  border: 1px solid #E0E7FF;
  border-radius: var(--r-md);
  padding: 22px 20px;
  align-items: start;
}
.yakusoku__icon {
  width: 38px; height: 38px;
  background: var(--green-light);
  border-radius: 999px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.yakusoku__item h3 {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}
.yakusoku__item p {
  font-size: 13.5px;
  color: var(--mid);
  line-height: 1.9;
}
@media (min-width: 768px) {
  .yakusoku__list { grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .yakusoku__item { padding: 28px 22px; grid-template-columns: 1fr; }
  .yakusoku__item h3 { font-size: 17px; margin-top: 8px; }
}

/* §6 lang ------------------------------------------------------------- */
.lang {
  background: var(--dark);
  color: var(--white);
  padding-top: var(--space-section-sm);
  padding-bottom: var(--space-section-sm);
}
.lang__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.lang__list li {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 8px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--r-sm);
  color: rgba(255,255,255,0.92);
}
.lang__note {
  margin-top: 22px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.95;
}

/* §7 flow ------------------------------------------------------------- */
.flow {
  background: var(--white);
  padding-top: var(--space-section-md);
  padding-bottom: var(--space-section-sm);
}
.flow__list {
  margin-top: 24px;
  position: relative;
  padding-left: 16px;
}
.flow__list::before {
  content: "";
  position: absolute;
  top: 8px; bottom: 8px;
  left: 6px;
  width: 1px;
  background: var(--border);
}
.flow__step {
  position: relative;
  padding: 0 0 24px 18px;
}
.flow__step::before {
  content: "";
  position: absolute;
  left: -10px; top: 8px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--border);
}
.flow__step--accent::before {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(255,107,107,0.18);
}
.flow__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mid);
  margin-bottom: 4px;
}
.flow__step--accent .flow__no { color: var(--accent); }
.flow__step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}
.flow__step p {
  font-size: 13.5px;
  color: var(--mid);
  line-height: 1.9;
}
@media (min-width: 768px) {
  .flow__step h3 { font-size: 17px; }
  .flow__step { padding-bottom: 32px; }
}

/* §8 voice ------------------------------------------------------------ */
.voice {
  background: var(--bg);
  padding-top: var(--space-section-md);
  padding-bottom: var(--space-section-sm);
}
.voice__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 28px;
}
.voice__main {
  background: var(--dark);
  color: var(--white);
  border-radius: var(--r-lg);
  padding: 32px 26px;
  position: relative;
  overflow: hidden;
}
.voice__quote-mark {
  position: absolute;
  top: 8px; right: 24px;
  font-family: var(--font-serif);
  font-size: 110px;
  color: var(--accent);
  opacity: 0.3;
  line-height: 1;
  pointer-events: none;
}
.voice__main blockquote { margin: 0; }
.voice__main blockquote p {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.95;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.96);
  position: relative;
  z-index: 1;
}
.voice__main blockquote footer {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.02em;
}
.voice__sub {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.voice__card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 18px 18px;
  transform-style: preserve-3d;
  transition: transform .25s cubic-bezier(.22,1,.36,1), box-shadow .25s ease;
  will-change: transform;
}
.voice__card:hover {
  box-shadow: var(--shadow-warm);
}
.voice__card p {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
}
.voice__card footer {
  font-size: 11.5px;
  color: var(--mid);
  letter-spacing: 0.02em;
}
.voice__note {
  margin-top: 18px;
  font-size: 11.5px;
  color: var(--soft);
}
@media (min-width: 768px) {
  .voice__grid { grid-template-columns: 1.4fr 1fr; gap: 22px; }
  .voice__sub { grid-template-columns: 1fr; gap: 12px; }
  .voice__main { padding: 40px 36px; }
  .voice__main blockquote p { font-size: 19px; }
}

/* §9 price ------------------------------------------------------------ */
.price {
  background: var(--white);
  padding-top: var(--space-section-md);
  padding-bottom: var(--space-section-sm);
}
.price__card {
  margin-top: 24px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px 24px;
}
.price__points {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 18px;
}
.price__points li {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--dark);
  position: relative;
  padding-left: 22px;
}
.price__points li::before {
  content: "";
  position: absolute;
  left: 0; top: 11px;
  width: 14px; height: 1.5px;
  background: var(--accent);
}
.price__note {
  font-size: 13.5px;
  color: var(--mid);
  line-height: 1.9;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.price__guard {
  margin-top: 18px;
  background: var(--green-light);
  color: #065F46;
  font-size: 13.5px;
  font-weight: 700;
  text-align: center;
  padding: 14px 18px;
  border-radius: var(--r-sm);
}

/* §10 faq ------------------------------------------------------------- */
.faq {
  background: var(--bg);
  padding-top: var(--space-section-md);
  padding-bottom: var(--space-section-sm);
}
.faq__list {
  margin-top: 22px;
}
.faq__item {
  border-top: 1px solid var(--line);
}
.faq__item:last-child { border-bottom: 1px solid var(--line); }
.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 4px;
  font-weight: 700;
  font-size: 14.5px;
  cursor: pointer;
  list-style: none;
  position: relative;
  transition: color .15s ease;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--accent);
  font-weight: 400;
  line-height: 1;
  display: inline-block;
  transform-origin: center;
  transition: transform .28s cubic-bezier(.22,1,.36,1), color .2s ease;
}
.faq__item[open] summary { color: var(--accent); }
.faq__item[open] summary::after { transform: rotate(135deg); }
.faq__item p {
  padding: 0 4px 22px;
  font-size: 13.5px;
  color: var(--mid);
  line-height: 1.95;
  animation: hd-faq-open .35s cubic-bezier(.22,1,.36,1);
}
@keyframes hd-faq-open {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}
.faq__item summary:hover { color: var(--accent); }
.faq__item summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* §11 finalcta -------------------------------------------------------- */
.finalcta {
  background: var(--accent);
  color: var(--white);
  padding-top: var(--space-section-xl);
  padding-bottom: var(--space-section-md);
  position: relative;
  overflow: hidden;
}
.finalcta::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 12% 18%, rgba(255,255,255,0.10), transparent 70%),
    radial-gradient(ellipse 50% 35% at 88% 84%, rgba(16,185,129,0.18), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.finalcta__inner {
  text-align: center;
  position: relative;
  z-index: 2;
}
.finalcta__doodles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}
.finalcta__doodle {
  position: absolute;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.08));
  opacity: 0;
  animation: hd-doodle-in 1.2s cubic-bezier(.22,1,.36,1) .4s forwards;
}
.finalcta__doodle--ribbon { top: 18%; left: 6%; transform: rotate(-8deg); }
.finalcta__doodle--sparkle { top: 22%; right: 10%; animation: hd-doodle-spin-in 1.4s cubic-bezier(.22,1,.36,1) .6s forwards; }
.finalcta__doodle--circle { bottom: 14%; left: 8%; animation-delay: .5s; }
.finalcta__doodle--arrow { bottom: 18%; right: 8%; transform: rotate(6deg); animation-delay: .7s; }
@media (max-width: 767px) {
  .finalcta__doodle--ribbon { left: -2%; top: 8%; width: 100px; }
  .finalcta__doodle--sparkle { right: 4%; top: 12%; width: 28px; }
  .finalcta__doodle--circle { left: -6%; bottom: 8%; width: 60px; }
  .finalcta__doodle--arrow { right: -2%; bottom: 10%; width: 60px; }
}
.finalcta__badge {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  font-weight: 700;
  background: rgba(255,255,255,0.16);
  color: var(--white);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.finalcta__h {
  font-size: clamp(22px, 4.5vw, 30px);
  line-height: 1.55;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.01em;
}
.finalcta__lede {
  font-size: 13.5px;
  color: rgba(255,255,255,0.86);
  margin-bottom: 28px;
  line-height: 1.9;
}

/* footer -------------------------------------------------------------- */
.footer {
  background: var(--dark-2);
  color: rgba(255,255,255,0.78);
  padding-top: 48px;
  padding-bottom: 36px;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  gap: 22px;
  align-items: flex-start;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  font-weight: 700;
}
.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  font-size: 13px;
}
.footer__links a {
  color: rgba(255,255,255,0.66);
  transition: color .15s ease;
}
.footer__links a:hover { color: var(--white); }
.footer__copy {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.04em;
}
@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* privacy ------------------------------------------------------------- */
.privacy {
  padding-top: 36px;
}
.privacy h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
}
.privacy h3 {
  font-size: 13.5px;
  font-weight: 700;
  color: rgba(255,255,255,0.92);
  margin: 18px 0 6px;
}
.privacy p {
  font-size: 12.5px;
  color: rgba(255,255,255,0.62);
  line-height: 1.95;
}
.privacy__date {
  margin-top: 16px;
  font-size: 11.5px;
  color: rgba(255,255,255,0.45);
}

/* reveal animation (optional, JSで .is-in 付与) ------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* prefers-reduced-motion ---------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .btn--primary:hover,
  .btn--white:hover { transform: none; }
  .btn--primary::before { animation: none !important; transform: translateX(-110%); }
  .reveal { opacity: 1; transform: none; }
}

/* focus-visible ------------------------------------------------------- */
a:focus-visible,
button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}