/* ============================================================
   まばたきチェック — スタイル
   パレット: うるおいのある低グレアな水色紙面 × 深い青緑インク × ティール
   書体: 見出し Shippori Mincho B1 / 本文 Zen Kaku Gothic New / 数字 Space Grotesk
   ============================================================ */

:root {
  --paper: #F2F7F8;      /* ページ背景(低グレアの淡い水色) */
  --card: #FFFFFF;       /* カード面 */
  --ink: #14303A;        /* 主要テキスト */
  --ink-2: #486571;      /* 補助テキスト */
  --ink-3: #7A939C;      /* 弱いテキスト */
  --line: #D8E4E7;       /* 罫線 */
  --teal: #0E7C86;       /* アクセント(ボタン・リンク) */
  --teal-deep: #0A5A62;  /* アクセント濃 */
  --marker: #0797A8;     /* メーターのデータ印(検証済み) */
  --aqua: #BFE6E9;       /* アクセント淡 */
  --lid: #0F2A31;        /* まばたきワイプの「まぶた」 */

  --font-display: "Shippori Mincho B1", "Hiragino Mincho ProN", serif;
  --font-body: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;
  --font-num: "Space Grotesk", "Zen Kaku Gothic New", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

/* hidden属性はどのdisplay指定よりも優先して非表示にする */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--aqua); }

img, svg, video { max-width: 100%; display: block; }

a { color: var(--teal); }

:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 2px;
  border-radius: 4px;
}

.micro {
  font-size: 0.8rem;
  color: var(--ink-3);
  line-height: 1.7;
}

/* ---------- ヘッダー ---------- */

.site-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 24px;
}

.site-head__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.site-head__beta {
  font-family: var(--font-num);
  font-size: 0.75rem;
  color: var(--teal);
  vertical-align: super;
  margin-left: 2px;
}

.site-head__link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.site-head__link:hover { color: var(--teal); border-color: var(--teal); }

/* ---------- ヒーロー ---------- */

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  max-width: 1080px;
  margin: 0 auto;
  padding: 56px 24px 72px;
}

.hero__eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--teal);
  margin-bottom: 18px;
}

.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 4.2vw, 2.9rem);
  line-height: 1.45;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.hero__title em {
  font-style: normal;
  color: var(--teal-deep);
  background-image: linear-gradient(transparent 68%, var(--aqua) 68%);
}

.hero__sub {
  color: var(--ink-2);
  max-width: 32em;
  margin-bottom: 28px;
}

.hero__cta .micro { margin-top: 12px; }

/* 署名的要素: 理想のペースでまばたきする目 */

.hero__eye {
  position: relative;
  text-align: center;
  padding: 24px 8px;
}

.hero__eye::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 78%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(191, 230, 233, 0.55), transparent 70%);
  z-index: -1;
}

.eye { width: min(320px, 80%); margin: 0 auto; overflow: visible; }

.eye__blinker {
  transform-origin: 50% 50%;
  transform-box: fill-box;
  animation: blink 3.6s ease-in-out infinite;
}

@keyframes blink {
  0%, 93%, 100% { transform: scaleY(1); }
  95.5% { transform: scaleY(0.05); }
  98% { transform: scaleY(1); }
}

.eye__white { fill: #FDFEFE; }
.eye__pupil { fill: var(--ink); }
.eye__glint { fill: #FFFFFF; opacity: 0.95; }
.eye__outline {
  fill: none;
  stroke: var(--ink);
  stroke-width: 3.5;
  stroke-linecap: round;
}

.hero__eyecap {
  font-size: 0.85rem;
  color: var(--ink-2);
  margin-top: 14px;
  line-height: 1.9;
}

/* ---------- ボタン ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px 28px;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  transition: background-color 160ms, color 160ms, border-color 160ms;
}

.btn--primary {
  background: var(--teal);
  color: #FFFFFF;
}

.btn--primary:hover { background: var(--teal-deep); }

.btn--primary:disabled {
  background: var(--line);
  color: var(--ink-3);
  cursor: not-allowed;
}

.btn--ghost {
  background: transparent;
  color: var(--teal);
  border-color: var(--line);
}

.btn--ghost:hover { border-color: var(--teal); }

.btn--big { font-size: 1.05rem; padding: 15px 36px; }

/* ---------- チェッカー ---------- */

.checker { padding: 0 24px 88px; }

.checker__card {
  max-width: 780px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 44px 40px;
  box-shadow: 0 12px 40px rgba(20, 48, 58, 0.06);
}

.panel { text-align: center; }

.panel__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  margin-bottom: 20px;
}

.panel__status { color: var(--ink-2); }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  list-style: none;
  counter-reset: step;
  margin: 8px 0 30px;
  text-align: left;
}

.steps li {
  counter-increment: step;
  background: var(--paper);
  border-radius: 12px;
  padding: 16px;
  font-size: 0.9rem;
}

.steps li::before {
  content: counter(step);
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  color: var(--teal);
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.steps b { display: block; margin-bottom: 2px; }
.steps span { color: var(--ink-3); font-size: 0.8rem; line-height: 1.5; display: block; }

.panel .micro { margin-top: 16px; }

.spinner {
  width: 36px;
  height: 36px;
  margin: 24px auto 20px;
  border-radius: 50%;
  border: 4px solid var(--aqua);
  border-top-color: var(--teal);
  animation: spin 0.9s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- カメラ(live) ---------- */

.live {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
  text-align: left;
  margin-bottom: 20px;
}

.live__video {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 14px;
  overflow: hidden;
  background: #10242B;
}

.live__video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* 鏡映し */
}

.live__badge {
  position: absolute;
  top: 10px;
  left: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #FFFFFF;
  background: rgba(20, 48, 58, 0.78);
  border-radius: 999px;
  padding: 4px 12px;
}

.live__badge.is-ok { background: var(--teal); }

.live__count {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 5rem;
  color: #FFFFFF;
  background: rgba(16, 36, 43, 0.45);
}

.live__timer {
  position: absolute;
  right: 12px;
  bottom: 12px;
  width: 84px;
  height: 84px;
}

.live__timer svg { width: 100%; height: 100%; transform: rotate(-90deg); }

.ring__bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.3);
  stroke-width: 7;
}

.ring__fg {
  fill: none;
  stroke: #7FD4DB;
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 326.73;
  stroke-dashoffset: 326.73;
}

.live__timernum {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 1.5rem;
  color: #FFFFFF;
}

.live__side h2 { text-align: left; }

.live__side p { font-size: 0.92rem; color: var(--ink-2); margin-bottom: 18px; }

.reading__hint {
  font-weight: 700;
  color: var(--teal-deep) !important;
  font-size: 0.88rem !important;
  margin-bottom: 10px !important;
}

.reading__body {
  max-height: 280px;
  overflow-y: auto;
  padding-right: 8px;
}

.reading__body p {
  font-size: 0.92rem;
  line-height: 2;
  color: var(--ink);
  margin-bottom: 14px;
}

/* ---------- 結果 ---------- */

.result__eyebrow {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}

.result__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(3.4rem, 9vw, 5rem);
  line-height: 1.2;
  color: var(--ink);
}

.result__unit {
  font-size: 0.35em;
  color: var(--ink-2);
  margin-left: 8px;
  font-weight: 500;
}

.result__tier {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--teal-deep);
  margin: 4px 0 10px;
}

.result__msg {
  max-width: 34em;
  margin: 0 auto 30px;
  color: var(--ink-2);
  font-size: 0.95rem;
  text-align: left;
}

/* メーター(0〜25回/分) */

.meter { margin: 0 auto 24px; max-width: 560px; }

.meter__bracket {
  position: relative;
  height: 26px;
  margin-bottom: 4px;
}

.meter__bracket span {
  position: absolute;
  left: 60%;
  width: 20%;
  bottom: 0;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--teal-deep);
  border-bottom: 2px solid var(--teal-deep);
  padding-bottom: 3px;
  white-space: nowrap;
  text-align: center;
}

.meter__track {
  position: relative;
  display: flex;
  gap: 2px; /* ゾーン間のスペーサー */
  height: 26px;
  border-radius: 6px;
}

.meter__zone { height: 100%; }
.meter__zone--z1 { width: 20%; background: #EFD5C8; border-radius: 6px 0 0 6px; }
.meter__zone--z2 { width: 20%; background: #F0E0D0; }
.meter__zone--z3 { width: 20%; background: #EAEBDF; }
.meter__zone--z4 { width: 40%; background: #CFE8E5; border-radius: 0 6px 6px 0; }

.meter__marker {
  position: absolute;
  top: -7px;
  bottom: -7px;
  left: 0%;
  width: 4px;
  transform: translateX(-50%);
  background: var(--marker);
  border-radius: 2px;
  box-shadow: 0 0 0 2px #FFFFFF; /* 面との分離リング */
  transition: left 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.meter__you {
  position: absolute;
  top: -26px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  font-weight: 700;
  color: #FFFFFF;
  background: var(--teal-deep);
  border-radius: 999px;
  padding: 2px 10px;
  white-space: nowrap;
}

.meter__ticks {
  position: relative;
  height: 18px;
  margin-top: 6px;
}

.meter__ticks span {
  position: absolute;
  transform: translateX(-50%);
  font-family: var(--font-num);
  font-size: 0.72rem;
  color: var(--ink-3);
}

.meter__ticks span:nth-child(1) { left: 0%; }
.meter__ticks span:nth-child(2) { left: 20%; }
.meter__ticks span:nth-child(3) { left: 40%; }
.meter__ticks span:nth-child(4) { left: 60%; }
.meter__ticks span:nth-child(5) { left: 80%; }
.meter__ticks span:nth-child(6) { left: 100%; }

.meter__zonelabels {
  display: flex;
  margin-top: 2px;
}

.meter__zonelabels span {
  font-size: 0.72rem;
  color: var(--ink-2);
  text-align: center;
}

.meter__zonelabels span:nth-child(1) { width: 20%; }
.meter__zonelabels span:nth-child(2) { width: 20%; }
.meter__zonelabels span:nth-child(3) { width: 20%; }
.meter__zonelabels span:nth-child(4) { width: 40%; }

.result__actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.result__next {
  display: inline-block;
  margin-top: 22px;
  font-size: 0.9rem;
  font-weight: 700;
}

#btnCancel { display: block; margin: 0 auto; }

/* ---------- 開発中アプリ ---------- */

.app {
  background: var(--card);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 80px 24px;
}

.section__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  text-align: center;
  margin-bottom: 10px;
}

.section__lead {
  text-align: center;
  color: var(--ink-2);
  margin-bottom: 44px;
}

.app__features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 1000px;
  margin: 0 auto 56px;
}

.feature h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  padding-left: 14px;
  border-left: 3px solid var(--teal);
  line-height: 1.6;
}

.feature p { font-size: 0.9rem; color: var(--ink-2); }

.signup {
  max-width: 560px;
  margin: 0 auto;
  background: #E8F3F4;
  border-radius: 16px;
  padding: 32px 28px;
  text-align: center;
}

.signup__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.signup__lead { font-size: 0.9rem; color: var(--ink-2); margin-bottom: 18px; }

.signup__todo {
  border: 2px dashed var(--ink-3);
  border-radius: 10px;
  padding: 14px;
  font-size: 0.82rem;
  color: var(--ink-2);
  text-align: left;
  line-height: 1.8;
}

.signup__todo code {
  background: #FFFFFF;
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.78rem;
}

/* ---------- FAQ ---------- */

.faq {
  max-width: 780px;
  margin: 0 auto;
  padding: 72px 24px;
}

.faq .section__title { margin-bottom: 24px; }

.faq details { border-bottom: 1px solid var(--line); }

.faq summary {
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 18px 32px 18px 4px;
  position: relative;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 1.2rem;
  color: var(--teal);
  transition: transform 200ms;
}

.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }

.faq details p {
  font-size: 0.92rem;
  color: var(--ink-2);
  padding: 0 4px 20px;
}

/* ---------- フッター ---------- */

.site-foot {
  text-align: center;
  padding: 40px 24px 48px;
  font-size: 0.78rem;
  color: var(--ink-3);
  line-height: 2;
}

/* ---------- まばたきワイプ ---------- */

.blinkwipe {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
}

.blinkwipe__lid {
  position: absolute;
  left: 0;
  right: 0;
  height: 50.5%;
  background: var(--lid);
  transform: scaleY(0);
}

.blinkwipe__lid--top { top: 0; transform-origin: top; }
.blinkwipe__lid--bottom { bottom: 0; transform-origin: bottom; }

.blinkwipe.is-active .blinkwipe__lid--top { animation: lidclose 700ms ease-in-out forwards; }
.blinkwipe.is-active .blinkwipe__lid--bottom { animation: lidclose 700ms ease-in-out forwards; }

@keyframes lidclose {
  0% { transform: scaleY(0); }
  42% { transform: scaleY(1); }
  58% { transform: scaleY(1); }
  100% { transform: scaleY(0); }
}

/* ---------- 目のケア用品 ---------- */

.care {
  max-width: 1000px;
  margin: 0 auto;
  padding: 72px 24px 8px;
}

.care__items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 14px;
}

.care-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
}

.care-card__tag {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--teal);
  margin-bottom: 6px;
}

.care-card__name {
  font-size: 0.98rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.6;
}

.care-card__desc {
  font-size: 0.82rem;
  color: var(--ink-2);
  line-height: 1.8;
  flex-grow: 1;
  margin-bottom: 14px;
}

.care-card__link {
  font-size: 0.85rem;
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--aqua);
  align-self: flex-start;
  padding-bottom: 2px;
}

.care-card__link:hover { border-color: var(--teal); }

.care__note { text-align: center; }

/* ---------- 見守りアプリ(α) ---------- */

.apphero {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 24px 24px;
  text-align: center;
}

.apphero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  margin-bottom: 10px;
}

.apphero__alpha {
  font-family: var(--font-num);
  font-size: 0.55em;
  color: var(--teal);
  vertical-align: super;
  margin-left: 4px;
}

.apphero__lead { color: var(--ink-2); font-size: 0.95rem; }

.apprun {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 20px;
  text-align: left;
  margin-bottom: 20px;
}

.apprun__main { display: grid; gap: 14px; }

.statcard {
  background: var(--paper);
  border-radius: 14px;
  padding: 18px 20px;
}

.statcard--hero { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }

.statcard__label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-3);
  display: block;
}

.statcard__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 2.6rem;
  line-height: 1.2;
}

.statcard__unit { font-size: 0.9rem; color: var(--ink-2); margin-left: 4px; }

.statcard__status {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--teal-deep);
}

.statrow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.statrow .statcard { padding: 12px 14px; }

.statrow .statcard__num { font-size: 1.3rem; }

.apprun__hint {
  font-size: 0.8rem;
  color: var(--ink-3);
  line-height: 1.8;
  margin-bottom: 16px;
}

.break-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  text-align: center;
  background: var(--lid);
  color: #FFFFFF;
  padding: 24px;
}

.break-overlay h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.break-overlay p { color: #BFE6E9; margin-bottom: 20px; }

.break-overlay__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 4.5rem;
  display: block;
  margin-bottom: 16px;
}

/* 見守りの設定 */

.settings {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 20px 18px;
  margin-bottom: 26px;
  text-align: left;
}

.settings legend {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-2);
  padding: 0 8px;
}

.settings__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  padding: 6px 0;
  font-size: 0.88rem;
}

.settings__label {
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--ink-3);
  min-width: 7em;
}

.settings__opt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.settings__opt input { accent-color: var(--teal); }

.settings__select {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--ink);
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
}

/* 7日間の履歴 */

.hist {
  max-width: 480px;
  margin: 0 auto 26px;
  text-align: left;
}

.hist__title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink-2);
  margin-bottom: 10px;
}

.hist__row {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 3px 0;
}

.hist__label {
  font-family: var(--font-num);
  font-size: 0.75rem;
  color: var(--ink-3);
}

.hist__track {
  height: 10px;
  background: var(--paper);
  border-radius: 5px;
  overflow: hidden;
}

.hist__bar {
  height: 100%;
  background: var(--marker);
  border-radius: 5px;
  min-width: 2px;
}

.hist__value {
  font-size: 0.75rem;
  color: var(--ink-2);
  white-space: nowrap;
}

/* ---------- レスポンシブ ---------- */

@media (max-width: 880px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 36px 24px 56px;
    text-align: center;
  }

  .hero__sub { margin-left: auto; margin-right: auto; }

  .hero__eye { order: -1; padding: 8px; }

  .eye { width: min(220px, 62%); }

  .checker__card { padding: 32px 20px; }

  .steps { grid-template-columns: 1fr; gap: 10px; }

  .live { grid-template-columns: 1fr; }

  .reading__body { max-height: 200px; }

  .app__features { grid-template-columns: 1fr; gap: 24px; }

  .meter__bracket span { font-size: 0.65rem; }

  .care__items { grid-template-columns: 1fr 1fr; }

  .apprun { grid-template-columns: 1fr; }

  .statrow { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .care__items { grid-template-columns: 1fr; }
}

/* ---------- モーション低減 ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .eye__blinker { animation: none; }

  .meter__marker { transition: none; }

  .blinkwipe.is-active .blinkwipe__lid--top,
  .blinkwipe.is-active .blinkwipe__lid--bottom { animation: none; }
}