/* 30-sections-intro.css */

/* INTRODUCTION セクション：背景画像（ダイナミック・フルブリード） */
/* 背景画像：セクション全体を覆う。高さ制限なし（min-heightで十分な縦を確保） */
.introduction-bg-image {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  min-height: 100%; /* 親#introductionの高さに追従 */
  transform: scale(1.05);
  animation: introduction-bg-zoom 20s ease-in-out infinite alternate;
  /* 古紙の汚れをやわらげる：明るく・彩度やコントラストを抑える */
  filter: brightness(1.08) contrast(0.96) saturate(0.88);
  -webkit-filter: brightness(1.08) contrast(0.96) saturate(0.88);
  /* 透過でやわらげて背面が透けるように */
  opacity: 0.88;
}
@keyframes introduction-bg-zoom {
  0% { transform: scale(1.05); }
  100% { transform: scale(1.12); }
}

/* TOP直下セクションの余白管理（干渉回避のため、このブロックに集約） */
#top > .relative.z-10 {
  --lp-gap-default-sp: 10rem;
  --lp-gap-default-pc: 15rem;
  --lp-gap-fv-intro: 40rem;
  --lp-gap-intro-pair-sp: 24rem;
  --lp-gap-intro-pair-pc: 36rem;
}
#top > .relative.z-10 > section + section {
  margin-top: var(--lp-gap-default-sp);
}
/* FV -> INTRODUCTION は常に専用値を優先 */
#top > .relative.z-10 > #fv-block + #introduction-voice {
  margin-top: var(--lp-gap-fv-intro) !important;
}
@media (min-width: 768px) {
  #top > .relative.z-10 > section + section {
    margin-top: var(--lp-gap-default-pc);
  }
  #top > .relative.z-10 > #fv-block + #introduction-voice {
    margin-top: var(--lp-gap-fv-intro) !important;
  }
}
/* 例外：メンター紹介・お客様の声だけ上余白をなくす（強み #value は section+section の余白の対象にする） */
#top > .relative.z-10 > #mentor-intro,
#top > .relative.z-10 > #reviews {
  margin-top: 0;
}
/* お客様の声の下：余白を抑えて背景だけの領域をなくす */
#reviews + section {
  margin-top: 0;
}
/* ラストメッセージの上：flow 直後のときだけ余白をなくす */
#top > .relative.z-10 > #flow + #closing-cta {
  margin-top: 0;
}

/* INTRODUCTION セクション：上下余白・水玉画像・背景はABOUT同様の透過・はみ出さない */
.introduction-block {
  position: relative;
  margin-bottom: 0;
  min-height: auto;
  /* イントロの上下余白はこのルールだけで管理する */
  padding-top: 30px;
  padding-bottom: 30px;
  overflow: hidden;
  background-color: rgba(255, 255, 255, 0.82) !important;
}
#introduction-message {
  background-color: rgba(244, 249, 255, 0.86) !important;
}

.introduction-section {
  padding-right: 24px;
  padding-left: 24px;
}
#introduction-voice.introduction-block,
#introduction-message.introduction-block {
  padding: 5.625rem 1.5rem !important;
}
.introduction-inner {
  position: relative;
  max-width: 56rem;
  margin: 0 auto;
}
.introduction-block .intro-content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  text-align: center;
}
.introduction-block .intro-narrative {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 300;
  letter-spacing: 0.1em;
}

/* 水玉枠：デコ用画像（はみ出さない・円形） */
.introduction-block .intro-dot-frame {
  position: absolute;
  z-index: 1;
  overflow: hidden;
  border-radius: 50%;
  pointer-events: none;
}
.introduction-block .intro-dot-frame__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
/* 水玉に少しだけ白フィルター（オーバーレイ） */
.introduction-block .intro-dot-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  pointer-events: none;
}
/* 上の水玉：大きめ・少し下に下げる */
#introduction-voice .intro-dot-frame--tl {
  top: 2rem;
  left: 0;
  width: 200px;
  height: 200px;
}
/* 下（中央右）の水玉：中位にでかく・少し下に下げる */
#introduction-message .intro-dot-frame--rc {
  top: 58%;
  right: 0;
  transform: translateY(-50%);
  width: 200px;
  height: 200px;
}
@media (min-width: 768px) {
  #introduction-voice .intro-dot-frame--tl {
    top: 2.5rem;
    width: 260px;
    height: 260px;
  }
  #introduction-message .intro-dot-frame--rc {
    top: 58%;
    width: 240px;
    height: 240px;
  }
}

/* INTRODUCTION 内ハイライト：真白のマーカー風 */
.introduction-block .intro-highlight {
  background-color: #ffffff;
  padding: 0.15em 0.35em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

@media (min-width: 768px) {
  .introduction-block {
    padding-top: 30px;
    padding-bottom: 30px;
  }
  .introduction-block .intro-content {
    gap: 2rem;
  }
  .introduction-block .intro-narrative {
    font-size: 1.25rem;
  }
}

/* 2分割したINTRODUCTION同士の余白 */
#top > .relative.z-10 > #introduction-voice + #introduction-message {
  margin-top: var(--lp-gap-intro-pair-sp);
}
@media (min-width: 768px) {
  #top > .relative.z-10 > #introduction-voice + #introduction-message {
    margin-top: var(--lp-gap-intro-pair-pc);
  }
}
/* イントロメッセージ → メインメニュー間（template 挟み込み対応） */
#top > .relative.z-10 > #introduction-message + #menu-hub,
#top > .relative.z-10 > #introduction-message + template + #menu-hub {
  margin-top: 10rem;
}
@media (min-width: 768px) {
  #top > .relative.z-10 > #introduction-message + #menu-hub,
  #top > .relative.z-10 > #introduction-message + template + #menu-hub {
    margin-top: 15rem;
  }
}

#intro-message-transition.intro-message-transition-overlay {
  position: fixed;
  inset: 0;
  z-index: 219;
  opacity: var(--intro-msg-overlay-opacity, 0);
  visibility: hidden;
  pointer-events: none;
  transition: none;
}
#intro-message-transition.intro-message-transition-overlay.is-active {
  visibility: visible;
}
#intro-message-transition .intro-message-transition-layer {
  position: absolute;
  inset: 0;
  background: #ffffff;
  clip-path: inset(0 0 0 calc((1 - var(--intro-msg-wipe-progress, 0)) * 100%));
  transition: none;
}
#intro-message-transition .intro-message-transition-copy {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.95rem;
  width: min(100%, 64rem);
  margin: 0 auto;
  padding: 0 1.25rem;
  opacity: var(--intro-msg-copy-opacity, 0);
  transform: translate3d(0, var(--intro-msg-copy-y, 14px), 0);
  transition: none;
}
#intro-message-transition .intro-message-transition-visual {
  position: absolute;
  right: clamp(1.2rem, 6vw, 5rem);
  top: 50%;
  width: clamp(132px, 18vw, 248px);
  aspect-ratio: 1 / 1;
  border-radius: 999px;
  overflow: hidden;
  opacity: calc(var(--intro-msg-copy-opacity, 0) * 0.96);
  transform: translate3d(0, calc(-50% + (var(--intro-msg-copy-y, 14px) * 0.65)), 0);
  z-index: 0;
}
#intro-message-transition .intro-message-transition-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
#intro-message-transition .intro-message-transition-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.03);
}
#intro-message-transition .intro-message-transition-sub {
  position: relative;
  z-index: 1;
}
#intro-message-transition .intro-message-transition-sub {
  margin: 0;
  text-align: center;
  line-height: 1.7;
}
#intro-message-transition .intro-message-transition-sub .intro-message-transition-line {
  margin: 0;
  opacity: 0;
  transform: translate3d(0, 10px, 0);
  transition: opacity 0.28s ease, transform 0.28s ease;
}
#intro-message-transition .intro-message-transition-sub .intro-message-transition-line + .intro-message-transition-line {
  margin-top: 1rem;
}
#intro-message-transition .intro-message-transition-sub .intro-message-transition-line.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
#intro-message-transition .intro-message-transition-sub span {
  display: inline;
  color: var(--brand-color);
  background: var(--surface-brand-soft);
  padding: 0.16em 0.38em;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2.15vw, 1.72rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
#intro-message-transition .transition-scroll-hint {
  opacity: calc(var(--intro-msg-copy-opacity, 0) * 0.9);
}

.transition-scroll-hint-anchor {
  position: relative;
  width: fit-content;
  max-width: min(92vw, 58rem);
  margin: 0 auto;
}
.intro-message-transition-textwrap {
  z-index: 1;
}
.transition-scroll-hint {
  position: absolute;
  left: calc(-1 * clamp(1.4rem, 3.2vw, 2.4rem));
  top: 50%;
  width: 0.85rem;
  height: clamp(3.4rem, 9vw, 5.2rem);
  transform: translateY(-50%);
  pointer-events: none;
  transition: none;
}
.transition-scroll-hint__line {
  position: absolute;
  inset: 0;
  width: 1px;
  margin: 0 auto;
  background: rgba(var(--brand-rgb), 0.32);
}
.transition-scroll-hint__dot {
  position: absolute;
  left: 50%;
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 999px;
  background: var(--brand-72);
  transform: translate(-50%, 0);
  animation: transitionScrollHint 1.65s cubic-bezier(0.55, 0.08, 0.47, 0.96) infinite;
}
@keyframes transitionScrollHint {
  0% {
    top: 0;
    opacity: 0.2;
  }
  20% {
    opacity: 0.95;
  }
  100% {
    top: calc(100% - 0.35rem);
    opacity: 0;
  }
}
@media (max-width: 767px) {
  .transition-scroll-hint {
    left: calc(-1 * clamp(1rem, 4.2vw, 1.6rem));
  }
}
@media (max-width: 767px) {
  #intro-message-transition .intro-message-transition-copy {
    width: 100%;
    padding: 0 1rem;
  }
  #intro-message-transition .intro-message-transition-visual {
    position: absolute;
    right: -0.75rem;
    top: 50%;
    width: min(44vw, 180px);
    opacity: calc(var(--intro-msg-copy-opacity, 0) * 0.66);
    transform: translate3d(0, calc(-50% + (var(--intro-msg-copy-y, 14px) * 0.65)), 0);
  }
}
@media (prefers-reduced-motion: reduce) {
  #intro-message-transition.intro-message-transition-overlay,
  #intro-message-transition .intro-message-transition-layer,
  #intro-message-transition .intro-message-transition-copy {
    transition: none !important;
  }
}

/* INTRODUCTION 内テキスト：古紙風背景用・暗い茶＋軽い影で可読性確保 */
.introduction-block .intro-label,
.introduction-block .intro-heading {
  color: #4a4035;
  text-shadow:
    0 0 1px rgba(255, 255, 255, 0.6),
    0 1px 2px rgba(0, 0, 0, 0.08),
    0 2px 4px rgba(0, 0, 0, 0.06);
}
.introduction-block .intro-label {
  opacity: 1;
  color: #5a4d42;
  letter-spacing: 0.35em;
}

/* INTRODUCTION：テキストは常時表示（フェード演出なし） */
.introduction-block .intro-label,
.introduction-block .intro-narrative > * {
  opacity: 1 !important;
  transform: none !important;
  animation: none !important;
}

/* BR で区切った行の間隔を詰める（leading-[2.8] を上書き） */
.introduction-block .intro-narrative,
.introduction-block .intro-narrative .intro-heading {
  line-height: 1.65 !important;
}
.introduction-block .intro-heading strong {
  color: #4a4035;
}

/* INTRODUCTION ナラティブ：段落と「私の人生…」ブロックの間隔を詰める（Tailwindに依存しない） */
.introduction-block .intro-narrative {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.introduction-block .intro-narrative-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.introduction-block .intro-section-label {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brand-62);
}
@media (min-width: 768px) {
  .introduction-block .intro-narrative {
    gap: 1.5rem;
  }
  .introduction-block .intro-narrative-section {
    gap: 1.5rem;
  }
  .introduction-block .intro-section-label {
    font-size: 0.75rem;
  }
}
.introduction-block .intro-thought-wrap {
  padding-top: 1rem !important;
  padding-bottom: 1rem !important;
}
.introduction-block .intro-thought-wrap .intro-thought-quote {
  display: block;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.introduction-block .intro-thought-wrap .intro-thought-quote + .intro-thought-quote {
  margin-top: 1.1rem;
}
#introduction-message .intro-switch {
  --intro-switch-scale: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  margin: 0.5rem 0 0.8rem;
}
#introduction-message .intro-switch-dot {
  display: block;
  border-radius: 999px;
  background: rgba(var(--brand-rgb), 0.5);
  animation: intro-switch-dot-bob 2.4s ease-in-out infinite;
}
#introduction-message .intro-switch-dot-1 {
  width: calc(16px * var(--intro-switch-scale));
  height: calc(16px * var(--intro-switch-scale));
  transform: translateX(calc(-22px * var(--intro-switch-scale)));
  animation-delay: 0s;
}
#introduction-message .intro-switch-dot-2 {
  width: calc(13px * var(--intro-switch-scale));
  height: calc(13px * var(--intro-switch-scale));
  transform: translateX(calc(17px * var(--intro-switch-scale)));
  opacity: 0.86;
  animation-delay: 0.08s;
}
#introduction-message .intro-switch-dot-3 {
  width: calc(10px * var(--intro-switch-scale));
  height: calc(10px * var(--intro-switch-scale));
  transform: translateX(calc(-12px * var(--intro-switch-scale)));
  opacity: 0.74;
  animation-delay: 0.16s;
}
#introduction-message .intro-switch-dot-4 {
  width: calc(8px * var(--intro-switch-scale));
  height: calc(8px * var(--intro-switch-scale));
  transform: translateX(calc(9px * var(--intro-switch-scale)));
  opacity: 0.62;
  animation-delay: 0.24s;
}
#introduction-message .intro-switch-dot-5 {
  width: calc(6px * var(--intro-switch-scale));
  height: calc(6px * var(--intro-switch-scale));
  transform: translateX(calc(-5px * var(--intro-switch-scale)));
  opacity: 0.5;
  animation-delay: 0.32s;
}
@keyframes intro-switch-dot-bob {
  0%, 100% { transform: translate(var(--dot-x, 0), 0); filter: brightness(1); }
  50% { transform: translate(var(--dot-x, 0), 2px); filter: brightness(1.14); }
}
#introduction-message .intro-switch-dot-1 { --dot-x: calc(-22px * var(--intro-switch-scale)); }
#introduction-message .intro-switch-dot-2 { --dot-x: calc(17px * var(--intro-switch-scale)); }
#introduction-message .intro-switch-dot-3 { --dot-x: calc(-12px * var(--intro-switch-scale)); }
#introduction-message .intro-switch-dot-4 { --dot-x: calc(9px * var(--intro-switch-scale)); }
#introduction-message .intro-switch-dot-5 { --dot-x: calc(-5px * var(--intro-switch-scale)); }
@media (max-width: 767px) {
  #introduction-message .intro-switch-dot-1 { --dot-x: calc(-18px * var(--intro-switch-scale)); }
  #introduction-message .intro-switch-dot-2 { --dot-x: calc(14px * var(--intro-switch-scale)); }
  #introduction-message .intro-switch-dot-3 { --dot-x: calc(-10px * var(--intro-switch-scale)); }
  #introduction-message .intro-switch-dot-4 { --dot-x: calc(8px * var(--intro-switch-scale)); }
  #introduction-message .intro-switch-dot-5 { --dot-x: calc(-4px * var(--intro-switch-scale)); }
}
@media (prefers-reduced-motion: reduce) {
  #introduction-message .intro-switch-dot {
    animation: none;
  }
}

/* INTRODUCTION 内「私の人生…」など：暗い茶＋軽い影＋下線（古紙背景で可読） */
.introduction-block .intro-thought-quote {
  color: #4a4035;
  font-size: clamp(1.5rem, 3.2vw, 1.875rem);
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.02em;
  line-height: 1.5;
  text-shadow:
    0 0 1px rgba(255, 255, 255, 0.5),
    0 1px 2px rgba(0, 0, 0, 0.1),
    0 2px 4px rgba(0, 0, 0, 0.08);
  display: inline-block;
  position: relative;
  padding-bottom: 0.5em;
}
.introduction-block .intro-thought-highlight {
  color: var(--brand-color);
  padding: 0.12em 0.32em;
  font-weight: 600;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
/* 下線：茶系グラデーション（古紙に馴染む） */
.introduction-block .intro-thought-quote::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(61, 46, 31, 0.5) 25%, rgba(45, 36, 24, 0.75) 50%, rgba(61, 46, 31, 0.5) 75%, transparent);
  border-radius: 1px;
}

.lp-on-dark .lp-text-secondary { color: rgba(255, 255, 255, 0.9); }
.lp-on-dark .lp-text-muted { color: rgba(255, 255, 255, 0.7); }
.lp-on-dark h2,
.lp-on-dark h3,
.lp-on-dark p,
.lp-on-dark span:not([class*="bg-"]),
.lp-on-dark a:not([class*="bg-"]) {
  color: #fff !important;
}
.lp-on-dark .text-white,
.lp-on-dark .text-white\/90 {
  color: #fff !important;
}