/* ==========================================================
   ゲーミングWeb制作ページ メインスタイル
   BEM記法 / モバイルファースト
   ========================================================== */

/* ---------- リセット・ベース ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.9;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent-cyan);
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

strong {
  font-weight: 700;
}

/*reCaptchaバッジを非表示*/
.grecaptcha-badge { visibility: hidden; }



/* ---------- ユーティリティ ---------- */
.u-sp-only {
  display: inline;
}

.u-pc-only {
  display: none;
}

.u-marker {
  color: var(--color-accent-yellow);
  font-weight: 700;
}

/* 強調カード共通のさりげない装飾:
   照準（ビューファインダー）風のコーナーマーク＋淡いゴールドの光 */
.about__definition::before,
.effects__card::before,
.manga__col--after::before,
.about__definition::after,
.effects__card::after,
.manga__col--after::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
}

.about__definition::before,
.effects__card::before,
.manga__col--after::before {
  top: 10px;
  left: 10px;
  border-top: 1px solid rgba(201, 151, 59, 0.55);
  border-left: 1px solid rgba(201, 151, 59, 0.55);
}

.about__definition::after,
.effects__card::after,
.manga__col--after::after {
  right: 10px;
  bottom: 10px;
  border-right: 1px solid rgba(201, 151, 59, 0.55);
  border-bottom: 1px solid rgba(201, 151, 59, 0.55);
}

@media (min-width: 768px) {
  .u-sp-only {
    display: none;
  }

  .u-pc-only {
    display: inline;
  }
}

/* hidden属性はdisplay指定より優先して非表示にする */
.button[hidden],
.paint-game__overlay[hidden],
.paint-game__result[hidden],
.design-game__overlay[hidden],
.design-game__result[hidden],
.design-game__compare[hidden],
.design-game__toolbar[hidden] {
  display: none;
}

/* ---------- ボタン ---------- */
.button {
  display: inline-block;
  padding: 14px 28px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-s);
  font-family: var(--font-base);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
  text-align: center;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

.button--primary {
  background: var(--color-primary);
  color: var(--color-text-invert);
  font-weight: 700;
  box-shadow: 0 4px 0 var(--color-primary-deep);
}

.button--primary:hover {
  background: var(--color-primary-bright);
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--color-primary-deep), var(--shadow-glow);
}

.button--primary:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--color-primary-deep);
}

.button--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-line);
}

.button--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-bright);
}

.button--large {
  padding: 18px 48px;
  font-size: 1.15rem;
}

.button__icon {
  width: 1.05em;
  height: 1.05em;
  vertical-align: -0.16em;
  margin-right: 8px;
}

/* ---------- ヘッダー ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(13, 13, 18, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-line);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: var(--content-width-wide);
  margin: 0 auto;
  padding: 12px 16px;
}

.header__logo {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 900;
  font-size: 0.95rem;
  color: var(--color-text);
  white-space: nowrap;
}

.header__logo-mark {
  width: 22px;
  height: 22px;
  display: block;
  flex-shrink: 0;
}

.header__nav {
  display: none;
}

.header__score {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--color-accent-yellow);
  border: 1px dashed var(--color-accent-yellow);
  border-radius: var(--radius-s);
  padding: 4px 10px;
}

.header__score-label {
  color: var(--color-text-sub);
}

.header__cta {
  display: none;
}

@media (min-width: 768px) {
  .header__inner {
    padding: 14px 24px;
  }

  .header__logo {
    font-size: 1.05rem;
  }

  .header__cta {
    display: inline-block;
    background: var(--color-primary);
    color: var(--color-text-invert);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 8px 20px;
    border-radius: var(--radius-s);
    transition: background var(--transition-base);
  }

  .header__cta:hover {
    background: var(--color-primary-bright);
  }
}

@media (min-width: 1280px) {
  .header__nav {
    display: flex;
    gap: 24px;
    margin-left: 32px;
  }

  .header__nav-link {
    font-size: 0.85rem;
    color: var(--color-text-sub);
    transition: color var(--transition-base);
  }

  .header__nav-link:hover {
    color: var(--color-primary-bright);
  }
}

/* ---------- ヒーロー（スクロール連動） ---------- */
.hero {
  position: relative;
  /* stickyで固定した画面を、この高さぶんのスクロールで演出する */
  height: 220vh;
}

.hero__sticky {
  position: sticky;
  top: 0;
  height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  overflow: hidden;
  padding: 88px 20px 0;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}


.hero__grid {
  position: absolute;
  inset: -50%;
  background-image:
    linear-gradient(rgba(201, 151, 59, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 151, 59, 0.12) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: perspective(500px) rotateX(55deg) translateY(10%);
  animation: hero-grid-scroll 12s linear infinite;
}

@keyframes hero-grid-scroll {
  from {
    background-position: 0 0;
  }

  to {
    background-position: 0 480px;
  }
}

.hero__glow {
  position: absolute;
  left: 50%;
  top: 40%;
  width: 640px;
  height: 640px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(201, 151, 59, 0.28) 0%, transparent 65%);
  filter: blur(8px);
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
  margin: auto 0;
}

.hero__title {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero__title-service {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-accent-yellow);
  letter-spacing: 0.2em;
}

.hero__title-copy {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.4;
  text-shadow: 0 0 32px rgba(201, 151, 59, 0.55);
}

.hero__lead {
  margin-top: 24px;
  color: var(--color-text-sub);
  font-size: 0.95rem;
}

.hero__actions {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.hero__scroll-hint {
  margin-top: 40px;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.35em;
  color: var(--color-text-sub);
  animation: blink 1.2s steps(2, start) infinite;
}

/* 画面下・横幅いっぱいの巨大見出し（スクロールで1文字ずつ落ちる） */
.hero__headline {
  position: relative;
  z-index: 1;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 0 4px;
  margin-bottom: 40px;
  font-family: "Anton", var(--font-base);
  font-size: clamp(3rem, 15.5vw, 15rem);
  line-height: 0.95;
  color: #fff;
  letter-spacing: 0;
  white-space: nowrap;
  text-shadow: 0 0 48px rgba(201, 151, 59, 0.65);
  user-select: none;
}

.hero__headline-letter {
  display: inline-block;
  transform-origin: 50% 100%;
  will-change: transform, opacity;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@media (min-width: 768px) {
  .hero__title-copy {
    font-size: 3.6rem;
  }

  .hero__lead {
    font-size: 1.05rem;
  }

  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }
}

/* ---------- セクション共通 ---------- */
.section {
  padding: var(--section-padding-sp) 20px;
}

.section:nth-of-type(even) {
  background: var(--color-bg-panel);
}

.section__inner {
  max-width: var(--content-width);
  margin: 0 auto;
}

.section__inner--wide {
  max-width: var(--content-width-wide);
}

.section__eyebrow {
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  color: var(--color-primary-bright);
  margin-bottom: 12px;
}

.section__title {
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1.5;
  margin-bottom: 24px;
}

.section__title-sub {
  display: block;
  margin-top: 8px;
  font-size: 1.1rem;
  color: var(--color-accent-yellow);
}

.section__lead {
  color: var(--color-text-sub);
  margin-bottom: 40px;
}

@media (min-width: 768px) {
  .section {
    padding: var(--section-padding-pc) 32px;
  }

  .section__title {
    font-size: 2.2rem;
  }

  .section__title-sub {
    font-size: 1.4rem;
  }
}

/* スクロール出現アニメーション */
.js-reveal {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(14px);
  transition: opacity 0.7s ease, transform 0.7s ease, filter 0.7s ease;
}

.js-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

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

  .js-reveal {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }

  .hero {
    height: auto;
    min-height: 100svh;
  }

  .hero__grid,
  .hero__scroll-hint {
    animation: none;
  }
}

/* ---------- 課題セクション ---------- */
.problem__list {
  display: grid;
  gap: 20px;
  margin-bottom: 48px;
}

.problem__item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-m);
  padding: 28px 24px;
}

.problem__icon {
  display: block;
  width: 52px;
  height: 52px;
  color: var(--color-primary);
  opacity: 0.9;
  margin-bottom: 16px;
}

.problem__icon svg {
  width: 100%;
  height: 100%;
}

.problem__item-title {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.problem__item-text {
  font-size: 0.9rem;
  color: var(--color-text-sub);
}

.problem__conclusion {
  text-align: center;
  font-size: 1.05rem;
}

@media (min-width: 768px) {
  .problem__list {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- ゲーミングWebとは ---------- */
.about__definition {
  position: relative;
  font-size: 1.05rem;
  background:
    radial-gradient(circle at 0% 0%, rgba(201, 151, 59, 0.13) 0%, transparent 55%),
    var(--color-bg-card);
  border-radius: var(--radius-m);
  padding: 28px;
  margin-bottom: 24px;
}

.about__philosophy {
  color: var(--color-text-sub);
  margin-bottom: 40px;
}

.about__features {
  display: grid;
  gap: 20px;
  margin-bottom: 32px;
}

.about__feature {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-m);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}

.about__feature-num {
  font-weight: 900;
  font-size: 2.2rem;
  color: rgba(201, 151, 59, 0.3);
  position: absolute;
  top: 8px;
  right: 16px;
}

.about__feature-title {
  font-size: 1.15rem;
  color: var(--color-primary-bright);
  margin-bottom: 8px;
}

.about__feature-text {
  font-size: 0.9rem;
  color: var(--color-text-sub);
}

.about__note {
  font-size: 0.85rem;
  color: var(--color-accent-yellow);
  text-align: center;
}

@media (min-width: 768px) {
  .about__features {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 3つの効果 ---------- */
.effects__cards {
  display: grid;
  gap: 24px;
}

.effects__card {
  position: relative;
  background:
    radial-gradient(circle at 50% 0%, rgba(201, 151, 59, 0.1) 0%, transparent 60%),
    var(--color-bg-card);
  border-radius: var(--radius-m);
  padding: 32px 28px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.effects__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.effects__card-tag {
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--color-primary-bright);
  margin-bottom: 4px;
}

.effects__card-title {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.effects__card-copy {
  font-weight: 700;
  color: var(--color-accent-yellow);
  line-height: 1.6;
  margin-bottom: 16px;
}

.effects__card-text {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

.effects__card-list {
  border-top: 1px dashed var(--color-line);
  padding-top: 16px;
  display: grid;
  gap: 8px;
}

.effects__card-list li {
  font-size: 0.85rem;
  padding-left: 1.4em;
  position: relative;
}

.effects__card-list li::before {
  content: "▶";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-size: 0.7rem;
  top: 0.35em;
}

@media (min-width: 1280px) {
  .effects__cards {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 漫画に変わる体験型 ---------- */
.manga__compare {
  display: grid;
  gap: 16px;
  margin-bottom: 40px;
}

.manga__col {
  border-radius: var(--radius-m);
  padding: 28px 24px;
}

.manga__col--before {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
}

.manga__col--after {
  position: relative;
  background: linear-gradient(160deg, rgba(201, 151, 59, 0.16), rgba(201, 151, 59, 0.04));
  box-shadow: 0 0 40px rgba(201, 151, 59, 0.12);
}

.manga__col-title {
  font-size: 1.15rem;
  text-align: center;
  margin-bottom: 16px;
}

.manga__col--after .manga__col-title {
  color: var(--color-primary-bright);
}

.manga__col-list {
  display: grid;
  gap: 10px;
  font-size: 0.9rem;
}

.manga__mark {
  display: inline-block;
  width: 1.6em;
  font-weight: 700;
}

.manga__mark--good {
  color: var(--color-accent-yellow);
}

.manga__mark--bad {
  color: var(--color-text-sub);
}

.manga__arrow {
  text-align: center;
  font-size: 1.6rem;
  color: var(--color-primary);
  transform: rotate(90deg);
}

.manga__conclusion {
  text-align: center;
  font-size: 1.05rem;
}

@media (min-width: 768px) {
  .manga__compare {
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
  }

  .manga__arrow {
    transform: none;
    align-self: center;
  }
}

/* ---------- デモ共通 ---------- */
.game {
  margin-top: 56px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-l);
  background: var(--color-bg-card);
  overflow: hidden;
}

.game__header {
  padding: 32px 24px 8px;
}

.game__tag {
  display: inline-block;
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  color: var(--color-text-invert);
  background: var(--color-accent-yellow);
  border-radius: 4px;
  padding: 3px 10px;
  margin-bottom: 12px;
}

.game__title {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.game__desc {
  font-size: 0.92rem;
  color: var(--color-text-sub);
}

.game__caution {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--color-accent-yellow);
}

.game__body {
  padding: 24px;
  display: grid;
  gap: 24px;
}

.game__point {
  background: var(--color-bg-panel);
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-m);
  padding: 24px;
}

.game__point-title {
  font-size: 0.95rem;
  color: var(--color-primary-bright);
  margin-bottom: 12px;
}

.game__point-list {
  display: grid;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--color-text-sub);
}

.game__point-list li {
  padding-left: 1.4em;
  position: relative;
}

.game__point-list li::before {
  content: "★";
  position: absolute;
  left: 0;
  color: var(--color-accent-yellow);
  font-size: 0.75rem;
  top: 0.3em;
}

@media (min-width: 1280px) {
  .game__body {
    grid-template-columns: 1fr 300px;
    align-items: start;
  }
}

/* ---------- デモ1: ビル塗りゲーム ---------- */
.paint-game__hud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.paint-game__brush-select {
  display: flex;
  gap: 8px;
}

.paint-game__brush-btn {
  font-family: var(--font-base);
  background: var(--color-bg-panel);
  border: 2px solid var(--color-line);
  border-radius: var(--radius-s);
  color: var(--color-text);
  padding: 8px 14px;
  cursor: pointer;
  text-align: left;
  transition: border-color var(--transition-base), background var(--transition-base);
}

.paint-game__brush-btn.is-active {
  border-color: var(--color-accent-cyan);
  background: rgba(63, 210, 255, 0.1);
}

.paint-game__brush-btn--new.is-active {
  border-color: var(--color-primary);
  background: rgba(201, 151, 59, 0.12);
}

.paint-game__brush-name {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
}

.paint-game__brush-btn--new .paint-game__brush-name {
  color: var(--color-primary-bright);
}

.paint-game__brush-spec {
  display: block;
  font-size: 0.72rem;
  color: var(--color-text-sub);
}

.paint-game__meters {
  display: flex;
  gap: 16px;
}

.paint-game__meter {
  text-align: right;
}

.paint-game__meter-label {
  display: block;
  font-size: 0.72rem;
  color: var(--color-text-sub);
}

.paint-game__meter-value {
  font-family: var(--font-pixel);
  font-size: 1.3rem;
  color: var(--color-accent-yellow);
}

.paint-game__stage {
  position: relative;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--color-line);
}

.paint-game__canvas {
  display: block;
  width: 100%;
  height: auto;
  touch-action: none;
  cursor: crosshair;
  background: #87b5d8;
}

.paint-game__overlay,
.paint-game__result {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: rgba(13, 13, 18, 0.86);
  text-align: center;
  padding: 24px;
}

.paint-game__overlay-title,
.paint-game__result-title {
  font-family: var(--font-pixel);
  font-size: 1.4rem;
  color: var(--color-accent-yellow);
}

.paint-game__overlay-text {
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

.paint-game__result-list {
  display: grid;
  gap: 6px;
  font-size: 0.95rem;
}

.paint-game__result-list div {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.paint-game__result-list dt {
  color: var(--color-text-sub);
}

.paint-game__result-list dd {
  font-family: var(--font-pixel);
  color: var(--color-accent-yellow);
}

.paint-game__result-note {
  font-size: 0.85rem;
  color: var(--color-primary-bright);
  font-weight: 700;
}

.paint-game__result-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media (min-width: 768px) {
  .paint-game__result-actions {
    flex-direction: row;
  }
}

/* ---------- デモ2: お粗末デザイン探し ---------- */
.design-game {
  display: grid;
  gap: 16px;
}

.design-game__stage {
  position: relative;
  width: min(100%, 420px);
  margin: 0 auto;
  aspect-ratio: 400 / 533;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-bg);
}

.design-game__flyer {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.design-game__spot {
  position: absolute;
  z-index: 1;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.design-game__spot:focus-visible {
  outline: 2px dashed var(--color-accent-cyan);
  outline-offset: -2px;
}

.design-game__spot.is-hint {
  border-radius: var(--radius-s);
  animation: design-hint 0.8s ease-in-out 3;
}

@keyframes design-hint {
  0%, 100% {
    box-shadow: inset 0 0 0 3px rgba(255, 215, 110, 0);
  }

  50% {
    box-shadow: inset 0 0 0 3px rgba(255, 215, 110, 0.9);
  }
}

.design-game__pin {
  position: absolute;
  z-index: 2;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-text-invert);
  border: 2px solid var(--color-text);
  font-weight: 900;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
  pointer-events: none;
  animation: design-pin-pop 0.35s ease;
}

@keyframes design-pin-pop {
  from {
    transform: translate(-50%, -50%) scale(0);
  }
}

.design-game__miss {
  position: absolute;
  z-index: 3;
  transform: translate(-50%, -100%);
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(20, 19, 16, 0.85);
  color: var(--color-text);
  font-size: 0.72rem;
  white-space: nowrap;
  pointer-events: none;
  animation: design-miss 0.9s ease forwards;
}

@keyframes design-miss {
  from {
    opacity: 0;
  }

  20% {
    opacity: 1;
  }

  to {
    opacity: 0;
    transform: translate(-50%, -170%);
  }
}

.design-game__hud {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 3;
  font-family: var(--font-pixel);
  font-size: 0.85rem;
  color: var(--color-accent-yellow);
  background: rgba(20, 19, 16, 0.78);
  border: 1px solid rgba(255, 215, 110, 0.4);
  border-radius: var(--radius-s);
  padding: 4px 12px;
  pointer-events: none;
}

.design-game__hint {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 3;
  font-family: var(--font-pixel);
  font-size: 0.8rem;
  color: var(--color-primary-bright);
  background: rgba(20, 19, 16, 0.78);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-s);
  padding: 4px 12px;
  cursor: pointer;
}

.design-game__hint:hover {
  background: var(--color-primary);
  color: var(--color-text-invert);
}

.design-game__compare {
  position: absolute;
  inset: 0;
  z-index: 4;
  --pos: 50%;
}

.design-game__compare:has(.design-game__compare-range:focus-visible) {
  outline: 2px dashed var(--color-accent-cyan);
  outline-offset: -2px;
}

.design-game__compare-img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.design-game__compare-before {
  position: absolute;
  inset: 0;
  clip-path: inset(0 calc(100% - var(--pos)) 0 0);
}

.design-game__compare-divider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  width: 3px;
  transform: translateX(-50%);
  background: var(--color-primary);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

.design-game__compare-divider::after {
  content: "◀ ▶";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-text-invert);
  font-size: 0.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.45);
}

.design-game__compare-label {
  position: absolute;
  top: 10px;
  z-index: 1;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(20, 19, 16, 0.8);
  pointer-events: none;
}

.design-game__compare-label--before {
  left: 10px;
  color: var(--color-accent-cyan);
}

.design-game__compare-label--after {
  right: 10px;
  color: var(--color-accent-yellow);
}

.design-game__compare-range {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
  touch-action: none;
}

.design-game__overlay,
.design-game__result {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(20, 19, 16, 0.92);
  text-align: center;
  padding: 24px;
}

.design-game__overlay-title,
.design-game__result-title {
  font-family: var(--font-pixel);
  font-size: 1.4rem;
  color: var(--color-accent-yellow);
  text-shadow: 0 0 18px rgba(255, 215, 110, 0.4);
}

.design-game__overlay-text,
.design-game__result-text {
  font-size: 0.85rem;
  color: var(--color-text);
}

.design-game__toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
}

.design-game__toolbar-note {
  width: 100%;
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

.design-game__findings {
  display: grid;
  gap: 10px;
}

.design-game__findings-empty {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  text-align: center;
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-m);
  padding: 14px;
}

.design-game__findings-empty[hidden] {
  display: none;
}

.design-game__finding {
  background: var(--color-bg-panel);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-m);
  padding: 16px 18px;
}

.design-game__finding-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--color-primary-bright);
  margin-bottom: 8px;
}

.design-game__finding-num {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-text-invert);
  font-size: 0.8rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}

.design-game__finding-text {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin-bottom: 8px;
}

.design-game__finding-fix {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-accent-yellow);
}

@media (prefers-reduced-motion: reduce) {
  .design-game__pin {
    animation: none;
  }

  .design-game__spot.is-hint {
    animation: none;
    box-shadow: inset 0 0 0 3px var(--color-accent-yellow);
  }
}

/* ---------- 制作の流れ ---------- */
.flow__list {
  display: grid;
  gap: 20px;
  counter-reset: flow;
}

.flow__step {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-m);
  padding: 28px 24px;
  position: relative;
}

.flow__step-num {
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--color-primary-bright);
  letter-spacing: 0.2em;
}

.flow__step-title {
  font-size: 1.1rem;
  margin: 6px 0 10px;
}

.flow__step-text {
  font-size: 0.88rem;
  color: var(--color-text-sub);
}

@media (min-width: 1280px) {
  .flow__list {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ---------- FAQ ---------- */
.faq__list {
  display: grid;
  gap: 12px;
}

.faq__item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.faq__question {
  list-style: none;
  cursor: pointer;
  padding: 20px 48px 20px 24px;
  font-weight: 700;
  position: relative;
  transition: color var(--transition-base);
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::before {
  content: "Q";
  font-weight: 900;
  color: var(--color-primary-bright);
  margin-right: 12px;
}

.faq__question::after {
  content: "＋";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-sub);
  transition: transform var(--transition-base);
}

.faq__item[open] .faq__question::after {
  content: "－";
  color: var(--color-primary-bright);
}

.faq__question:hover {
  color: var(--color-primary-bright);
}

.faq__answer {
  padding: 0 24px 20px;
  font-size: 0.9rem;
  color: var(--color-text-sub);
  border-top: 1px dashed var(--color-line);
  padding-top: 16px;
  margin: 0 24px 20px;
  padding-left: 0;
  padding-right: 0;
}

/* ---------- CTA ---------- */
.contact {
  position: relative;
  overflow: hidden;
  text-align: center;
}

.contact__bg {
  position: absolute;
  inset: 0;
}

.contact__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 19, 16, 0.95) 0%, rgba(20, 19, 16, 0.6) 50%, rgba(20, 19, 16, 0.95) 100%);
  pointer-events: none;
}

.contact__inner {
  position: relative;
  z-index: 1;
}

.contact__text {
  color: var(--color-text-sub);
  margin-bottom: 36px;
}

.contact__actions {
  margin-bottom: 12px;
}

.contact__note {
  font-size: 0.78rem;
  color: var(--color-text-sub);
}

/* ---------- フッター ---------- */
.footer {
  border-top: 1px solid var(--color-line);
  padding: 48px 20px 32px;
  text-align: center;
}

.footer__logo {
  font-weight: 900;
  font-size: 1.05rem;
}

.footer__vision {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin: 8px 0 24px;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  margin-bottom: 24px;
}

.footer__link {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  transition: color var(--transition-base);
}

.footer__link:hover {
  color: var(--color-primary-bright);
}

.footer__copyright {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-text-sub);
}

/* ---------- 実績解除トースト ---------- */
.achievement {
  position: fixed;
  left: 16px;
  bottom: 16px;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-bg-card);
  border: 2px solid var(--color-accent-yellow);
  border-radius: var(--radius-m);
  padding: 12px 20px;
  box-shadow: 0 0 24px rgba(255, 210, 63, 0.3);
  transform: translateY(150%);
  transition: transform 0.4s cubic-bezier(0.2, 0.9, 0.3, 1.2);
  max-width: calc(100vw - 32px);
}

.achievement.is-show {
  transform: translateY(0);
}

.achievement__icon {
  font-size: 1.6rem;
}

.achievement__label {
  font-weight: 700;
  font-size: 0.7rem;
  color: var(--color-accent-yellow);
  letter-spacing: 0.2em;
}

.achievement__name {
  font-weight: 700;
  font-size: 0.95rem;
}