/* =============================================
   先生アプリ - トップページ専用スタイル
   ============================================= */

/* =============================================
   ヒーローセクション
   ============================================= */
.hero {
  background: linear-gradient(145deg, #354D2F 0%, #4A6741 55%, #5A7A50 100%);
  padding: 72px 0 64px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 85%, rgba(232,184,75,0.15) 0%, transparent 50%),
    radial-gradient(circle at 85% 20%, rgba(232,131,106,0.12) 0%, transparent 50%);
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero__eyebrow {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--mustard);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}
.hero__title {
  color: #fff;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height: 1.2;
  margin-bottom: 20px;
}
.hero__title em {
  font-style: normal;
  color: var(--mustard);
  position: relative;
  display: inline-block;
}
.hero__title em::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--mustard);
  border-radius: 2px;
  opacity: 0.6;
}
.hero__desc {
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 24px;
}
.hero__desc strong { color: var(--mustard-light); }

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 100px;
  font-size: 0.82rem;
  color: #fff;
  font-weight: 500;
  backdrop-filter: blur(4px);
}

.hero__cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ヒーロービジュアル（黒板風） */
.hero__visual {
  display: flex;
  justify-content: center;
}
.hero__board {
  background: #2A4A27;
  border: 3px solid #1C3319;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  overflow: hidden;
}
.hero__board-header {
  background: #1C3319;
  padding: 10px 14px;
  display: flex;
  gap: 6px;
}
.hero__board-header span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
}
.hero__board-header span:nth-child(1) { background: #E8836A; }
.hero__board-header span:nth-child(2) { background: #E8B84B; }
.hero__board-header span:nth-child(3) { background: #4CAF50; }

.hero__board-body { padding: 20px; }
.hero__app-preview { display: flex; flex-direction: column; gap: 10px; }

.preview-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: #fff;
  font-size: 0.88rem;
  font-weight: 500;
  animation: slideInCard 0.6s ease forwards;
  opacity: 0;
}
.preview-card--1 { animation-delay: 0.2s; }
.preview-card--2 { animation-delay: 0.5s; }
.preview-card--3 { animation-delay: 0.8s; }

@keyframes slideInCard {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
.preview-card__icon { font-size: 1.4rem; flex-shrink: 0; }
.preview-card > span:nth-child(2) { flex: 1; }

/* =============================================
   お知らせバー
   ============================================= */
.notice-bar {
  background: #FEF9C3;
  border-bottom: 1.5px solid #FDE047;
  padding: 10px 0;
}
.notice-item {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.88rem;
}
.notice-item + .notice-item {
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed #FDE047;
}

/* =============================================
   タグスクロール
   ============================================= */
.section--tags { padding: 24px 0; border-bottom: 1.5px solid var(--border); }
.tags-scroll {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}
.tags-scroll::-webkit-scrollbar { height: 4px; }
.tags-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* =============================================
   アプリカード グリッド
   ============================================= */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* アプリカード */
.app-card { cursor: pointer; }
.app-card__thumb {
  display: block;
  width: 100%;
  height: 160px;
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--border) 100%);
  overflow: hidden;
  position: relative;
  text-decoration: none;
}
.app-card__thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, #E8F0E4 0%, #D1E0CB 100%);
}
.app-card__type {
  position: absolute;
  top: 8px;
  left: 8px;
}
.app-card__body { padding: 14px 16px; }
.app-card__tags { margin-bottom: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
.app-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}
.app-card__title a {
  color: var(--text-main);
  text-decoration: none;
  transition: color var(--transition);
}
.app-card__title a:hover { color: var(--moss); }
.app-card__desc {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 12px;
}
.app-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  padding-top: 10px;
}
.app-card__author {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-sub);
}
.app-card__author-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}
.app-card__author-icon--default {
  background: var(--moss-light);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.app-card__stats { display: flex; gap: 8px; }

/* 検索バー */
.search-bar__inner {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px 4px 4px 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search-bar__inner:focus-within {
  border-color: var(--moss);
  box-shadow: 0 0 0 3px rgba(74,103,65,0.15);
}
.search-bar__icon { color: var(--text-light); }
.search-bar__input {
  border: none !important;
  box-shadow: none !important;
  padding: 8px 0;
  flex: 1;
  background: transparent;
}
.search-bar__input:focus { outline: none; }

/* アプリ空状態 */
.apps-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-sub);
}
.apps-empty__icon { font-size: 3rem; display: block; margin-bottom: 12px; }

/* =============================================
   使い方セクション
   ============================================= */
.section--howto { background: var(--surface); }
.howto-steps {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}
.howto-step {
  flex: 1;
  min-width: 200px;
  max-width: 280px;
  text-align: center;
  padding: 28px 20px;
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--border);
  position: relative;
}
.howto-step__num {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--mustard);
  color: var(--text-main);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 100px;
  letter-spacing: 0.05em;
}
.howto-step__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  display: block;
}
.howto-step h3 { font-size: 1rem; margin-bottom: 8px; color: var(--moss-dark); }
.howto-step p  { font-size: 0.88rem; color: var(--text-sub); }
.howto-arrow { font-size: 1.5rem; color: var(--border-dark); align-self: center; padding: 0 4px; }

/* =============================================
   ログイン要否 案内セクション
   ============================================= */
.section--login-guide {
  background: var(--bg);
  border-top: 1.5px solid var(--border);
  border-bottom: 1.5px solid var(--border);
}

.login-guide-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 640px) {
  .login-guide-grid { grid-template-columns: 1fr; }
}

.login-guide-card {
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 2px solid transparent;
}
.login-guide-card--free {
  background: #f0faf0;
  border-color: #b2ddb2;
}
.login-guide-card--required {
  background: #fffbf0;
  border-color: var(--mustard-light);
}

.login-guide-card__header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.login-guide-card__icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  line-height: 1;
}
.login-guide-card__header h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--moss-dark);
  margin: 0;
}

.login-guide-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.login-guide-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.93rem;
  color: var(--text-main);
  font-weight: 500;
}
.login-guide-list li span {
  font-size: 1.1rem;
  flex-shrink: 0;
  width: 1.5em;
  text-align: center;
}

.login-guide-card__note {
  font-size: 0.83rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed #ccc;
}
.login-guide-card__link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 6px;
  color: var(--moss);
  font-weight: 600;
  text-decoration: underline;
  font-size: 0.85rem;
  transition: color var(--transition);
}
.login-guide-card__link:hover {
  color: var(--moss-dark);
}

/* =============================================
   安心バッジセクション
   ============================================= */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.trust-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  transition: all var(--transition);
}
.trust-card:hover {
  border-color: var(--moss-light);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.trust-card__icon { font-size: 2.2rem; display: block; margin-bottom: 12px; }
.trust-card h3 { font-size: 0.97rem; color: var(--moss-dark); margin-bottom: 8px; }
.trust-card p  { font-size: 0.85rem; color: var(--text-sub); line-height: 1.7; }

/* =============================================
   CTAセクション
   ============================================= */
.section--cta { padding: 40px 0 80px; }
.cta-box {
  background: linear-gradient(135deg, var(--moss-dark) 0%, var(--moss) 100%);
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}
.cta-box::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: -60px;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}
.cta-box__deco {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cta-box h2 {
  color: #fff;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.cta-box p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}
.cta-box .btn { position: relative; z-index: 1; }

/* =============================================
   アクセシビリティ
   ============================================= */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* =============================================
   レスポンシブ
   ============================================= */
@media (max-width: 880px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }
  .hero { padding: 48px 0; }
  .howto-arrow { display: none; }
}
@media (max-width: 600px) {
  .hero__title { font-size: 2rem; }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; justify-content: center; }
  .apps-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .cta-box { padding: 40px 24px; }
}
@media (max-width: 400px) {
  .trust-grid { grid-template-columns: 1fr; }
}