/**
 * main.css — TOP 版ページ固有レイアウト（demo-top-peaceput）
 *
 * LP 版（demo-site-peaceput）との差分：
 * - About: 本文カードを 1 枚に削減。3特長リストを省略。
 * - Courses: brand-list 風カード 1 枚 + more-link に圧縮。タブ廃止。
 * - Support: メッセージ短縮。support-grid 4 → 2 アイテム表示。
 * - Cases: 3 → 2 事例に削減。
 * - Pricing: 3枚カード → プラン名＋月額のみのサマリ表に圧縮。
 * - FAQ: 5 → 3 件に削減。
 */

/* ============================================================
   §0 HERO（ヒーロー）— 完全維持
   peaceput: フルビューポート・CSS アニメ「冷たい余韻」
   z-index 構造: bg 0 / overlay 1 / content 2 / header 3
============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  overflow: clip;
  isolation: isolate;
  display: flex;
  align-items: center;
  /* AI 生成シネマティック背景画像（最下層・ベースとして） */
  background-color: var(--hero-grad-a);
  background-image: url("../images/generated/hero-bg.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* CSS アニメーション背景（シネマティック・メッシュ的な青系グラデ） */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: var(--z-video);
  background: var(--hero-grad-a);
  background-image:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(29, 78, 216, 0.45) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 70%, rgba(22, 39, 68, 0.6) 0%, transparent 55%),
    radial-gradient(ellipse 100% 50% at 50% 100%, rgba(15, 31, 58, 0.8) 0%, transparent 60%);
  animation: hero-mesh 14s ease-in-out infinite alternate;
}

@keyframes hero-mesh {
  0% {
    background-image:
      radial-gradient(ellipse 80% 60% at 20% 30%, rgba(29, 78, 216, 0.45) 0%, transparent 60%),
      radial-gradient(ellipse 60% 80% at 80% 70%, rgba(22, 39, 68, 0.6) 0%, transparent 55%),
      radial-gradient(ellipse 100% 50% at 50% 100%, rgba(15, 31, 58, 0.8) 0%, transparent 60%);
  }
  33% {
    background-image:
      radial-gradient(ellipse 70% 70% at 65% 20%, rgba(37, 99, 235, 0.38) 0%, transparent 55%),
      radial-gradient(ellipse 80% 50% at 10% 80%, rgba(17, 34, 68, 0.65) 0%, transparent 60%),
      radial-gradient(ellipse 90% 60% at 50% 110%, rgba(12, 25, 48, 0.85) 0%, transparent 60%);
  }
  66% {
    background-image:
      radial-gradient(ellipse 90% 55% at 40% 50%, rgba(29, 78, 216, 0.3) 0%, transparent 60%),
      radial-gradient(ellipse 55% 85% at 90% 40%, rgba(14, 32, 60, 0.7) 0%, transparent 55%),
      radial-gradient(ellipse 110% 45% at 55% 95%, rgba(10, 20, 40, 0.9) 0%, transparent 55%);
  }
  100% {
    background-image:
      radial-gradient(ellipse 75% 65% at 15% 45%, rgba(59, 130, 246, 0.25) 0%, transparent 58%),
      radial-gradient(ellipse 65% 75% at 75% 60%, rgba(22, 39, 68, 0.6) 0%, transparent 55%),
      radial-gradient(ellipse 95% 55% at 45% 100%, rgba(15, 25, 50, 0.88) 0%, transparent 60%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__bg {
    animation: none;
    background: linear-gradient(160deg, #0F1F3A 0%, #1E3A5F 40%, #0F1F3A 100%);
  }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: var(--z-overlay);
  background: linear-gradient(
    to bottom,
    rgba(15, 31, 58, 0.05) 0%,
    rgba(15, 31, 58, 0.0) 40%,
    rgba(15, 31, 58, 0.45) 100%
  );
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: var(--z-hero);
  width: 100%;
  min-height: 100svh;
  display: grid;
  place-items: center;
  text-align: center;
  color: #fff;
  padding: 8rem var(--space-4) 5rem;
}

.hero__inner {
  max-width: var(--container-narrow);
}

.hero__eyebrow {
  display: block;
  font-size: 0.6875rem;
  font-weight: 400;
  letter-spacing: 0.32em;
  text-transform: lowercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: var(--space-6);
}

.hero__headline {
  font-family: var(--font-sans);
  font-size: clamp(1.75rem, 3.8vw, 3.25rem);
  font-weight: 300;
  line-height: 1.65;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: var(--space-7);
}

.hero__headline .accent-serif {
  font-family: var(--font-display);
  font-weight: 400;
  font-style: italic;
  font-size: 1.1em;
  color: var(--color-line);
}

.hero__sub {
  font-size: clamp(0.8125rem, 1.2vw, 1rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  line-height: 2;
  margin-bottom: var(--space-8);
}

.hero__branch {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}

.branch-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-7);
  height: 52px;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: var(--radius-sm);
  transition: opacity var(--transition-base), background-color var(--transition-base);
}

.branch-btn--support {
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-accent);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.branch-btn--support:hover,
.branch-btn--support[aria-expanded="true"] {
  background: #fff;
  opacity: 0.88;
}

.branch-btn--course {
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.branch-btn--course:hover,
.branch-btn--course[aria-expanded="true"] {
  background: rgba(255, 255, 255, 0.1);
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: var(--z-hero);
}

.hero__scroll-label {
  font-size: 0.625rem;
  letter-spacing: 0.24em;
  text-transform: lowercase;
  color: rgba(255, 255, 255, 0.45);
}

.hero__scroll-line {
  display: block;
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.3);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0%, 100% { transform: scaleY(1); opacity: 0.3; }
  50%       { transform: scaleY(0.6); opacity: 0.9; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__scroll-line { animation: none; opacity: 0.4; }
}

/* ============================================================
   §1 ABOUT（history-collage 風）— 圧縮版
   TOP 版: 巨大年号 + コラージュ維持。本文カード 1 枚のみ。
   3 特長リストは廃止 → more-link で誘導。
============================================================ */
.section--about {
  background: var(--color-bg);
  padding: var(--space-section) 0;
  overflow: hidden;
}

.about-collage {
  position: relative;
  min-height: 40rem;
  margin-top: var(--space-8);
}

.about-collage__year {
  position: absolute;
  top: -1rem;
  left: -2rem;
  font-family: var(--font-display);
  font-size: var(--font-size-display);
  font-weight: 400;
  line-height: 0.9;
  color: var(--color-accent);
  opacity: 0.08;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.04em;
}

.about-collage__motif {
  position: absolute;
  pointer-events: none;
  opacity: 0.12;
}

.about-collage__motif--book {
  top: 5%;
  right: 5%;
  width: 28%;
}

.about-collage__motif--graph {
  bottom: 8%;
  right: 10%;
  width: 22%;
}

.about-collage__motif--person {
  bottom: 0;
  left: 8%;
  width: 18%;
}

.about-collage__circle {
  position: absolute;
  top: 18%;
  right: 2%;
  width: clamp(10rem, 18vw, 18rem);
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-bg-soft) 0%, var(--color-line) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
}

.about-collage__circle-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
  padding: var(--space-5);
}

.about-collage__circle-num {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  color: var(--color-accent);
  line-height: 1;
}

.about-collage__circle-label {
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
}

/* 本文カード（TOP版: 1枚のみ） */
.about-card {
  position: absolute;
  top: 28%;
  left: 10%;
  width: min(26rem, 55%);
  background: rgba(242, 244, 248, 0.96);
  border: 1px solid var(--color-border-light);
  padding: var(--space-7) var(--space-8);
  box-shadow: var(--shadow-md);
}

.about-card__chapter {
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.about-card__title {
  font-size: clamp(var(--font-size-lg), 2.2vw, var(--font-size-2xl));
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.about-card__body {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-5);
}

/* ============================================================
   §2 COURSES（brand-list 風）— 圧縮版
   TOP 版: 1 枚カード + more-link。タブ廃止。
============================================================ */
.section--courses {
  background: var(--color-bg-white);
  padding: var(--space-section) 0;
}

/* TOP版: 1アイテムのみ表示 */
.courses-list--top {
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
  margin-top: var(--space-8);
}

.course-item {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

.course-item__media {
  position: relative;
  background: linear-gradient(135deg, var(--color-bg-soft) 0%, var(--color-line) 100%);
  aspect-ratio: 4/3;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.course-item__media-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6);
}

.course-item__media-num {
  font-family: var(--font-display);
  font-size: clamp(4rem, 8vw, 7rem);
  font-weight: 400;
  color: var(--color-accent);
  opacity: 0.18;
  line-height: 1;
}

.course-item__media-icon {
  width: 64px;
  height: 64px;
  fill: var(--color-accent);
  opacity: 0.35;
}

.course-item__category {
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.course-item__title {
  font-size: clamp(var(--font-size-xl), 2.5vw, var(--font-size-2xl));
  font-weight: 400;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}

.course-item__desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-5);
}

/* TOP版: カテゴリチップ（タブ代替） */
.course-cats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.course-cat-chip {
  display: inline-block;
  padding: 3px 10px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  border: 1px solid var(--color-line);
  background: var(--color-accent-pale);
}

/* ============================================================
   §3 SUPPORT（recruit-story 風）— 圧縮版
   TOP 版: 暗背景 + SVG レイヤリング維持。2アイテム表示。
============================================================ */
.section--support {
  position: relative;
  background: var(--color-bg-deep);
  color: #fff;
  padding: var(--space-section) 0;
  overflow: hidden;
}

.support__bg-motif {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.support__bg-motif svg {
  position: absolute;
  right: -5%;
  bottom: -5%;
  width: 55%;
  height: auto;
  opacity: 0.04;
}

/* TOP版: 2アイテムグリッド */
.support-grid--top {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.support-item {
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition-base), border-color var(--transition-base);
}

.support-item:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(191, 219, 254, 0.25);
}

.support-item__icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--space-5);
}

.support-item__icon svg {
  width: 100%;
  height: 100%;
  fill: var(--color-line);
}

.support-item__title {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: #fff;
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.support-item__text {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
}

/* 人物プレースホルダー（切り抜き風・維持） */
.support__person-stage {
  position: relative;
  margin: var(--space-7) 0 var(--space-5);
  min-height: 10rem;
  display: flex;
  align-items: center;
  gap: var(--space-7);
}

.support__person {
  width: 5rem;
  height: 8rem;
  background: linear-gradient(160deg, var(--color-line) 0%, rgba(191, 219, 254, 0.3) 100%);
  clip-path: polygon(20% 0%, 80% 0%, 100% 20%, 100% 100%, 0% 100%, 0% 20%);
  opacity: 0.18;
  flex-shrink: 0;
}

.support__person:nth-child(2) {
  width: 4.5rem;
  height: 7rem;
  opacity: 0.12;
}

.support__person:nth-child(3) {
  width: 4rem;
  height: 6.5rem;
  opacity: 0.08;
}

.support__cta {
  text-align: center;
  margin-top: var(--space-6);
}

.support__cta-text {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-5);
  letter-spacing: 0.04em;
}

/* ============================================================
   §4 CASES（brand-list 風）— 圧縮版
   TOP 版: 2 事例グリッド
============================================================ */
.section--cases {
  background: var(--color-bg-soft);
  padding: var(--space-section) 0;
}

/* TOP版: 2カラムグリッド */
.cases-grid--top {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.case-item {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.case-item:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.case-item__visual {
  height: 12rem;
  overflow: hidden;
}

.case-visual {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
  position: relative;
}

.case-visual--a {
  background: linear-gradient(135deg, var(--color-bg-deep) 0%, #1E3A5F 100%);
}

.case-visual--b {
  background: linear-gradient(135deg, #0E2845 0%, #1D3968 100%);
}

.case-visual__label {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-line);
  padding: 2px 8px;
  border: 1px solid rgba(191, 219, 254, 0.3);
  margin-right: var(--space-3);
}

.case-visual__type {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.12);
  position: absolute;
  top: var(--space-4);
  right: var(--space-5);
  line-height: 1;
  letter-spacing: -0.03em;
}

.case-item__body {
  padding: var(--space-6);
}

.case-item__title {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.45;
  margin-bottom: var(--space-3);
}

.case-item__result {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.case-item__link {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  transition: opacity var(--transition-fast);
}

.case-item__link:hover {
  opacity: 0.7;
}

/* ============================================================
   §5 PRICING — 圧縮版（プラン名 + 月額のみのサマリ）
============================================================ */
.section--pricing {
  background: var(--color-bg);
  padding: var(--space-section) 0;
}

/* TOP版: 横並びサマリ行 */
.pricing-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-8);
  max-width: var(--container-mid);
  margin-inline: auto;
}

.pricing-summary-item {
  text-align: center;
  padding: var(--space-7) var(--space-5);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-top: 3px solid var(--color-border);
}

.pricing-summary-item--featured {
  border-top-color: var(--color-accent);
  box-shadow: var(--shadow-card);
}

.pricing-summary-item__badge {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.pricing-summary-item__name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}

.pricing-summary-item__price {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-2xl), 3vw, var(--font-size-3xl));
  font-weight: 400;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.pricing-summary-item__unit {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 400;
  color: var(--color-text-muted);
}

/* ============================================================
   §6 NEWS（dense list）— 3件維持
============================================================ */
.section--news {
  background: var(--color-bg-white);
  padding: var(--space-section) 0;
}

/* ============================================================
   §7 FAQ — 3件に削減
============================================================ */
.section--faq {
  background: var(--color-bg-soft);
  padding: var(--space-section) 0;
}

/* ============================================================
   §8 CONTACT CTA（line-banner 風）— 完全維持
============================================================ */
.contact-cta {
  position: relative;
  background: var(--color-bg-deep);
  color: #fff;
  padding: var(--space-section) 0;
  overflow: hidden;
  text-align: center;
}

.contact-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 80% 60% at 20% 50%, rgba(29, 78, 216, 0.25) 0%, transparent 55%),
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(14, 32, 60, 0.4) 0%, transparent 60%);
  pointer-events: none;
}

.contact-cta__content {
  position: relative;
  z-index: 1;
}

.contact-cta__eyebrow {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: 0.28em;
  text-transform: lowercase;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: var(--space-5);
}

.contact-cta__title {
  font-family: var(--font-sans);
  font-size: clamp(var(--font-size-2xl), 3.5vw, var(--font-size-4xl));
  font-weight: 300;
  line-height: 1.5;
  color: #fff;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-6);
}

.contact-cta__sub {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 2;
  margin-bottom: var(--space-8);
}

.contact-cta__actions {
  display: flex;
  gap: var(--space-5);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-7);
}

.contact-cta__tel {
  font-family: var(--font-display);
  font-size: clamp(var(--font-size-xl), 2.5vw, var(--font-size-2xl));
  font-weight: 400;
  letter-spacing: 0.04em;
}

.contact-cta__tel a {
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition-fast);
}

.contact-cta__tel a:hover {
  color: #fff;
}

.contact-cta__tel-label {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.4);
  margin-top: var(--space-2);
  letter-spacing: 0.06em;
}

/* ============================================================
   セクション共通見出しブロック
============================================================ */
.section-heading {
  margin-bottom: var(--space-8);
}

.section-heading--center {
  text-align: center;
}

.section-heading--center .section-title {
  max-width: none;
  margin-inline: auto;
}

.section-heading__line {
  display: block;
  width: 2.5rem;
  height: 1px;
  background: var(--color-line);
  margin: var(--space-5) 0;
}

.section-heading--center .section-heading__line {
  margin-inline: auto;
}

/* ============================================================
   レスポンシブ
============================================================ */
@media (max-width: 820.98px) {
  /* Hero */
  .hero__content {
    padding: 6rem var(--space-4) 4rem;
  }

  .hero__branch {
    flex-direction: column;
    align-items: stretch;
  }

  .branch-btn {
    justify-content: center;
  }

  /* About collage → スタック */
  .about-collage {
    min-height: auto;
  }

  .about-collage__year {
    position: static;
    font-size: clamp(5rem, 22vw, 7rem);
    margin-bottom: var(--space-2);
    opacity: 0.1;
  }

  .about-collage__circle {
    position: static;
    width: clamp(8rem, 40vw, 12rem);
    margin: var(--space-5) auto;
  }

  .about-collage__motif {
    display: none;
  }

  .about-card {
    position: static;
    width: 100%;
    margin-top: var(--space-5);
  }

  /* Courses */
  .course-item {
    grid-template-columns: 1fr;
  }

  /* Support */
  .support-grid--top {
    grid-template-columns: 1fr;
  }

  .support__person-stage {
    display: none;
  }

  /* Cases */
  .cases-grid--top {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-inline: auto;
  }

  /* Pricing */
  .pricing-summary {
    grid-template-columns: 1fr;
    max-width: 360px;
  }

  /* News */
  .news-item {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .news-item__arrow {
    display: none;
  }
}

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}