/* ==========================================================================
   写真堂みちしるべ - 共通スタイルシート (Vanilla CSS)
   ========================================================================== */

/* --- Google Fonts & Icons インポート --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&family=Noto+Serif+JP:wght@400;500;600&family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap');

/* --- カスタムプロパティ (デザインシステム) --- */
:root {
  /* カラーパレット */
  --color-primary: #705b3e;          /* 温かみのあるアースゴールド/ブラウン */
  --color-secondary: #655d54;        /* サブカラー（くすんだブラウン） */
  --color-background: #faf9f7;       /* 柔らかなオフホワイト（紙の質感） */
  --color-text-main: #1a1c1b;        /* メインのテキスト（ほぼ黒） */
  --color-text-muted: #444748;       /* 補足テキスト（グレー） */
  --color-border: #E5E3E0;           /* 境界線（極薄いグレー） */
  --color-outline: #c4c7c7;          /* アウトライン（薄いグレー） */
  --color-warm-sand: #D4B996;        /* アクセント（温かみのある砂色） */
  --color-surface-low: #f4f3f1;      /* やや暗いサーフェス */
  --color-white: #ffffff;
  --color-error: #ba1a1a;
  --color-error-bg: #ffdad6;

  /* タイポグラフィ */
  --font-serif: 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;

  /* レイアウトと余白 */
  --container-max-width: 1200px;
  --header-height: 96px;
  --section-gap: 120px;
  --section-gap-mobile: 80px;
  --border-radius: 4px;
  --transition-normal: all 0.3s ease-in-out;
}

/* ==========================================================================
   1. 基本設定 & リセット
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  height: -webkit-fill-available;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-background);
  color: var(--color-text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-normal);
}

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

button {
  background: none;
  border: none;
  font-family: inherit;
  cursor: pointer;
  outline: none;
}

/* ==========================================================================
   2. レイアウトユーティリティ
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-padding {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
}

@media (max-width: 768px) {
  .section-padding {
    padding-top: var(--section-gap-mobile);
    padding-bottom: var(--section-gap-mobile);
  }
}

/* ==========================================================================
   3. ヘッダー / ナビゲーション
   ========================================================================== */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: rgba(250, 249, 247, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(196, 199, 199, 0.3);
  transition: var(--transition-normal);
}

.main-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.15em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

/* SNS アイコン */
.sns-icons {
  display: flex;
  align-items: center;
  gap: 16px;
}

.sns-icon-link {
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
}

.sns-icon-link:hover {
  color: var(--color-primary);
}

.sns-icon-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* モバイルメニューボタン */
.menu-toggle {
  display: none;
  color: var(--color-primary);
}

.menu-toggle .material-symbols-outlined {
  font-size: 32px;
}

/* モバイルドロワーメニュー */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  z-index: 999;
  background-color: var(--color-background);
  padding: 120px 40px 40px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: center;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
}

.mobile-nav.open {
  right: 0;
}

.mobile-nav .nav-link {
  font-size: 20px;
  font-family: var(--font-serif);
}

.mobile-nav .sns-icons {
  margin-top: 40px;
  gap: 32px;
}

.mobile-nav .sns-icon-link svg {
  width: 28px;
  height: 28px;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: block;
  }
  .logo {
    font-size: 1.4rem;
  }
}

/* ==========================================================================
   4. フッター
   ========================================================================== */
.main-footer {
  background-color: var(--color-surface-low);
  padding: 80px 0;
  border-t: 1px solid var(--color-border);
  text-align: center;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 32px;
  letter-spacing: 0.15em;
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 24px 32px;
  margin-bottom: 32px;
}

.footer-link {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

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

.footer-link.instagram-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-link.instagram-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.footer-copy {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* ==========================================================================
   5. ボタン / 見出しなどの共通パーツ
   ========================================================================== */
/* Moreボタン */
.btn-more {
  display: inline-block;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid var(--color-outline);
  padding: 10px 40px;
  border-radius: var(--border-radius);
  transition: var(--transition-normal);
}

.btn-more:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* プライマリボタン (フォーム等で使用) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-warm-sand);
  color: var(--color-text-main);
  padding: 14px 48px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  border-radius: var(--border-radius);
  transition: var(--transition-normal);
}

.btn-primary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* セクションタイトル (和風・モダン) */
.section-title-wrapper {
  text-align: center;
  margin-bottom: 64px;
}

.section-title-wrapper.border-bottom {
  display: inline-block;
  border-bottom: 1px solid var(--color-primary);
  padding-bottom: 8px;
  margin-bottom: 48px;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-text-main);
}

.section-subtitle {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ==========================================================================
   6. ヒーローセクション (HOME)
   ========================================================================== */
.hero {
  position: relative;
  width: 100%;
  aspect-ratio: 3/2;
  overflow: hidden;
}

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

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-content {
  color: var(--color-white);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  margin-bottom: 16px;
  filter: drop-shadow(0 4px 6px rgba(0,0,0,0.15));
}

.hero-text {
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 0.3em;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
    letter-spacing: 0.15em;
  }
  .hero-text {
    font-size: 13px;
    letter-spacing: 0.2em;
  }
}

/* ==========================================================================
   7. コンセプトセクション (HOME - みちしるべの由来)
   ========================================================================== */
.concept-text {
  text-wrap: balance;
  max-width: 680px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 2.2;
  color: var(--color-text-muted);
  text-align: justify;
  text-justify: inter-character;
}

@media (max-width: 768px) {
  .concept-text {
  text-wrap: balance;
    font-size: 14px;
    line-height: 2;
    text-align: left;
  }
}

/* ==========================================================================
   8. プランセクション (HOME - リスト表示)
   ========================================================================== */
.plan-header {
  padding-top: 80px;
  padding-bottom: 40px;
  text-align: center;
  border-top: 1px solid rgba(196, 199, 199, 0.2);
}

.plan-header .title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  letter-spacing: 0.3em;
  color: var(--color-primary);
  margin-top: 8px;
}

.plan-header .subtitle {
  font-size: 10px;
  letter-spacing: 0.5em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.plan-list-section {
  max-width: 1400px;
  margin: 0 auto;
  padding-bottom: 80px;
}

.plan-row {
  display: flex;
  align-items: center;
  margin-bottom: 120px;
}

.plan-row.reverse {
  flex-direction: row-reverse;
}

.plan-info {
  width: 50%;
  padding: 64px 80px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
}

.plan-info h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  letter-spacing: 0.15em;
}

.plan-desc {
  text-wrap: balance;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-muted);
}

.plan-img-wrapper {
  width: 50%;
  overflow: hidden;
  position: relative;
}

.plan-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.2);
  transition: transform 0.7s ease, filter 0.7s ease;
}

.plan-row:hover .plan-img-wrapper img {
  filter: grayscale(0);
  transform: scale(1.03);
}

@media (max-width: 992px) {
  .plan-info {
    padding: 40px;
  }
}

@media (max-width: 768px) {
  .plan-row,
  .plan-row.reverse {
    flex-direction: column;
    margin-bottom: 64px;
  }
  .plan-info,
  .plan-img-wrapper {
    width: 100%;
  }
  .plan-info {
    padding: 32px 24px;
  }
}

/* ==========================================================================
   9. プロフィールセクション (HOME - PHOTOGRAPHER)
   ========================================================================== */
.profile-section {
  border-top: 1px solid var(--color-border);
}

.profile-container {
  display: flex;
  align-items: center;
  gap: 96px;
}

.profile-img-wrapper {
  width: 45%;
  max-width: 220px;
  margin: 0 auto;
  position: relative;
}

.profile-img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  filter: grayscale(0.2);
  transition: filter 0.7s ease;
}

.profile-img:hover {
  filter: grayscale(0);
}

.profile-img-border {
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 100%;
  height: 100%;
  border: 1px solid rgba(112, 91, 62, 0.2);
  z-index: -1;
}

.profile-info {
  width: 55%;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.profile-name-title {
  font-size: 10px;
  letter-spacing: 0.5em;
  color: var(--color-primary);
  text-transform: uppercase;
}

.profile-name {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  letter-spacing: 0.1em;
}

.profile-name-en {
  font-size: 16px;
  font-weight: 300;
  margin-left: 16px;
  font-family: var(--font-sans);
}

.profile-text {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .profile-container {
    flex-direction: column;
    gap: 48px;
  }
  .profile-img-wrapper {
    width: 60%;
    max-width: 200px;
  }
  .profile-info {
    width: 100%;
  }
  .profile-name {
    font-size: 1.8rem;
  }
}

/* ==========================================================================
   10. FAQ セクション (HOME / FAQページ共通)
   ========================================================================== */
.faq-section {
  background-color: var(--color-surface-low);
}

.faq-wrapper {
  max-width: 800px;
  margin: 0 auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.faq-item {
  border-bottom: 1px solid rgba(196, 199, 199, 0.3);
  padding-bottom: 16px;
  cursor: pointer;
}

.faq-question-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.faq-question {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 500;
  transition: var(--transition-normal);
}

.faq-item:hover .faq-question {
  color: var(--color-primary);
}

.faq-icon {
  color: var(--color-text-muted);
  transition: transform 0.3s ease-in-out;
}

.faq-answer-wrapper {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.4s ease;
}

.faq-answer {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.8;
  padding-top: 16px;
  padding-bottom: 8px;
}

/* FAQ アイテムが開いているときの状態 */
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-item.open .faq-answer-wrapper {
  max-height: 300px; /* 任意の十分な高さ */
  opacity: 1;
}

.faq-more-btn-wrapper {
  text-align: center;
  margin-top: 48px;
}

/* ==========================================================================
   11. プラン詳細ページ共通スタイル
   ========================================================================== */
/* ヒーロー（下層ページ用） */
.sub-hero {
  height: 250px;
  background-color: var(--color-surface-low);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.sub-hero-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  letter-spacing: 0.1em;
}

.sub-hero-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-top: 8px;
}

/* 撮影プランカードグリッド */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.price-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 40px 32px;
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition-normal);
}

.price-card:hover {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
  border-color: var(--color-warm-sand);
}

.price-card.popular {
  border-color: var(--color-primary);
}

.badge-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.1em;
  padding: 4px 16px;
  border-radius: 9999px;
}

.price-card-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.price-card-amount {
  font-family: var(--font-sans);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.price-card-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  flex-grow: 1; /* カードの高さを揃えつつ、文字あふれを防ぐ */
}

.price-card-features {
  list-style: none;
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.price-card-features li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.price-card-features li .material-symbols-outlined {
  color: var(--color-primary);
  font-size: 16px;
}

@media (max-width: 992px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* オプションセクション */
.options-section {
  background-color: var(--color-surface-low);
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.option-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 24px;
  text-align: center;
  border-radius: var(--border-radius);
}

.option-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.option-price {
  font-weight: 500;
  color: var(--color-primary);
}

@media (max-width: 992px) {
  .options-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .options-grid {
    grid-template-columns: 1fr;
  }
}

/* お申し込みの流れセクション */
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 40px;
  max-width: 800px;
  margin: 48px auto 0;
}

.step-item {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.step-number {
  background-color: var(--color-primary);
  color: var(--color-white);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.step-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
}

.step-desc {
  font-size: 14px;
  color: var(--color-text-muted);
}

@media (max-width: 576px) {
  .step-item {
    flex-direction: column;
    gap: 16px;
  }
}

/* プラン詳細フッター (お申し込み促進) */
.plan-cta-section {
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.cta-text {
  text-wrap: balance;
  max-width: 600px;
  margin: 0 auto 32px;
  color: var(--color-text-muted);
}

/* ==========================================================================
   12. FAQ ページ固有スタイル
   ========================================================================== */
.faq-category {
  margin-bottom: 64px;
}

.faq-category-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 24px;
  border-left: 2px solid var(--color-primary);
  padding-left: 16px;
}

/* ==========================================================================
   13. お問い合わせページ・フォーム固有スタイル
   ========================================================================== */
.contact-grid {
  display: flex;
  gap: 80px;
}

.contact-info {
  width: 40%;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-info-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.contact-info-desc {
  font-size: 14px;
  color: var(--color-text-muted);
}

.btn-line-consult {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: #06C755; /* LINE カラー */
  color: var(--color-white);
  padding: 14px 32px;
  font-weight: 500;
  border-radius: var(--border-radius);
  letter-spacing: 0.1em;
  transition: var(--transition-normal);
}

.btn-line-consult:hover {
  opacity: 0.9;
}

.btn-line-consult svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.contact-form-wrapper {
  width: 60%;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 14px;
  font-weight: 500;
}

.form-label span {
  color: var(--color-error);
  margin-left: 4px;
}

.form-control {
  width: 100%;
  font-family: inherit;
  font-size: 14px;
  padding: 12px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  outline: none;
  transition: var(--transition-normal);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(112, 91, 62, 0.1);
}

textarea.form-control {
  min-height: 150px;
  resize: vertical;
}

.form-submit-wrapper {
  margin-top: 16px;
}

@media (max-width: 992px) {
  .contact-grid {
    flex-direction: column;
    gap: 64px;
  }
  .contact-info,
  .contact-form-wrapper {
    width: 100%;
  }
}