/*
  フォトモザイクアート応募ページ 専用スタイル
  KFBまつりのデザインに合わせたスタイル
*/

/* ========== ヒーローセクション ========== */
.mosaic-hero {
  position: relative;
  background-image: url('images/mosaicart.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 4rem 2rem;
  border-bottom: var(--kfb-border);
  box-shadow: 0 8px 0 var(--kfb-black);
}

.mosaic-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.85);
  z-index: 1;
}

.mosaic-hero-inner {
  position: relative;
  z-index: 2;
}

.mosaic-hero-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.mosaic-title {
  font-family: var(--font-pop);
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 800;
  margin: 0 0 1.5rem;
  line-height: 1.3;
  position: relative;
  display: inline-block;
  padding: 0.5rem 0;
}

.mosaic-title::before {
  content: '';
  position: absolute;
  top: 0;
  left: -1rem;
  right: -1rem;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.2) 0%, rgba(255, 20, 147, 0.2) 50%, rgba(0, 206, 209, 0.2) 100%);
  border-radius: 12px;
  z-index: -1;
  transform: rotate(-1deg);
}

.mosaic-title-line {
  display: block;
  margin-bottom: 0.5rem;
  position: relative;
}

.mosaic-title-line:nth-child(1) {
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  color: var(--kfb-magenta);
  text-shadow: 2px 2px 0 rgba(255, 255, 255, 0.9), 4px 4px 0 rgba(255, 20, 147, 0.3);
}

.mosaic-title-line:nth-child(2) {
  font-size: clamp(1.6rem, 4.5vw, 2.5rem);
  color: var(--kfb-cyan);
  text-shadow: 2px 2px 0 rgba(255, 255, 255, 0.9), 4px 4px 0 rgba(0, 206, 209, 0.3);
  margin-left: 1rem;
}

.mosaic-title-line:nth-child(3) {
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  color: var(--kfb-yellow);
  text-shadow: 2px 2px 0 rgba(255, 255, 255, 0.9), 4px 4px 0 rgba(255, 215, 0, 0.3);
  margin-left: 0.5rem;
}

.mosaic-subtitle {
  font-family: var(--font-pop);
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  font-weight: 700;
  margin: 0;
  line-height: 1.6;
  padding: 0.75rem 1.5rem;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.9) 100%);
  border: 3px solid var(--kfb-black);
  border-radius: 50px;
  box-shadow: 0 4px 0 var(--kfb-black), 0 0 0 2px rgba(255, 215, 0, 0.3) inset;
  display: inline-block;
  color: var(--kfb-black);
  position: relative;
  backdrop-filter: blur(4px);
}

.mosaic-subtitle::before {
  content: '🎯';
  margin-right: 0.5rem;
  font-size: 1.2em;
}

/* ========== メインコンテンツ ========== */
.mosaic-content {
  padding: 3rem 0;
  background: #fff;
}

.mosaic-content-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

.mosaic-section {
  margin-bottom: 3rem;
  padding: 2rem;
  background: #fff;
  border: var(--kfb-border);
  border-radius: 12px;
  box-shadow: var(--kfb-shadow);
}

.mosaic-section--highlight {
  background: linear-gradient(135deg, var(--kfb-yellow) 0%, #ffe066 100%);
}

.mosaic-section--warning {
  background: #fff9e6;
  border-color: var(--kfb-yellow);
}

.mosaic-section--form {
  background: linear-gradient(135deg, rgba(255, 209, 220, 0.3) 0%, rgba(255, 182, 193, 0.3) 100%);
}

.mosaic-section-title {
  font-family: var(--font-pop);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 800;
  color: var(--kfb-black);
  margin: 0 0 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 3px solid var(--kfb-black);
}

.mosaic-text {
  font-size: clamp(1rem, 2.5vw, 1.1rem);
  line-height: 1.8;
  color: var(--kfb-black);
  margin: 0 0 1rem;
}

.mosaic-text:last-child {
  margin-bottom: 0;
}

/* ========== 完成イメージ画像 ========== */
.mosaic-image-box {
  margin-top: 2rem;
  text-align: center;
}

.mosaic-image-label {
  font-family: var(--font-pop);
  font-size: clamp(1.1rem, 2.8vw, 1.3rem);
  font-weight: 800;
  color: var(--kfb-black);
  margin: 0 0 1rem;
  padding: 0.5rem 1rem;
  background: var(--kfb-yellow);
  border: 2px solid var(--kfb-black);
  border-radius: 8px;
  display: inline-block;
  box-shadow: 2px 2px 0 var(--kfb-black);
}

.mosaic-image {
  max-width: 100%;
  width: 100%;
  height: auto;
  border: var(--kfb-border);
  border-radius: 8px;
  box-shadow: 4px 4px 0 var(--kfb-black);
  display: block;
  margin: 0 auto;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.mosaic-image:hover {
  transform: scale(1.02);
  box-shadow: 6px 6px 0 var(--kfb-black);
}

/* 画像拡大モーダル */
.mosaic-image-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0, 0, 0, 0.95);
  align-items: center;
  justify-content: center;
  padding: 1rem;
  cursor: pointer;
}

.mosaic-image-modal.is-open {
  display: flex;
}

.mosaic-image-modal-content {
  max-width: 95vw;
  max-height: 95vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border: 3px solid var(--kfb-yellow);
  border-radius: 8px;
  box-shadow: 0 0 0 4px var(--kfb-black);
}

.mosaic-image-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 48px;
  height: 48px;
  background: var(--kfb-yellow);
  border: 3px solid var(--kfb-black);
  border-radius: 50%;
  color: var(--kfb-black);
  font-size: 24px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 4px 4px 0 var(--kfb-black);
  transition: transform 0.2s ease;
}

.mosaic-image-modal-close:hover {
  transform: scale(1.1);
}

.mosaic-text--large {
  font-size: clamp(1.3rem, 3vw, 1.6rem);
  font-weight: 700;
  text-align: center;
}

.mosaic-text--important {
  font-weight: 800;
  color: var(--kfb-magenta);
  font-size: clamp(1.1rem, 2.8vw, 1.3rem);
}

/* ========== テーマ ========== */
.mosaic-theme-title {
  font-family: var(--font-pop);
  font-size: clamp(1.8rem, 4.5vw, 2.5rem);
  font-weight: 800;
  color: var(--kfb-magenta);
  text-align: center;
  margin: 0 0 1.5rem;
  padding: 1rem;
  background: rgba(255, 20, 147, 0.1);
  border: 3px solid var(--kfb-magenta);
  border-radius: 8px;
}

.mosaic-theme-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.mosaic-theme-list li {
  font-size: clamp(1rem, 2.5vw, 1.1rem);
  line-height: 1.8;
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.mosaic-theme-list li::before {
  content: '●';
  position: absolute;
  left: 0;
  color: var(--kfb-cyan);
  font-weight: 800;
}

/* ========== 注意事項 ========== */
.mosaic-notice-box {
  background: rgba(255, 255, 255, 0.8);
  padding: 1.5rem;
  border: 2px solid var(--kfb-cyan);
  border-radius: 8px;
  margin: 1.5rem 0;
}

.mosaic-notice-title {
  font-family: var(--font-pop);
  font-size: clamp(1.2rem, 3vw, 1.4rem);
  font-weight: 800;
  color: var(--kfb-cyan);
  margin: 0 0 1rem;
}

.mosaic-notice-list {
  margin-top: 1.5rem;
}

.mosaic-notice-list ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mosaic-notice-list li {
  font-size: clamp(0.9rem, 2.2vw, 1rem);
  line-height: 1.8;
  padding: 0.75rem 0;
  padding-left: 1.5rem;
  position: relative;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.mosaic-notice-list li:last-child {
  border-bottom: none;
}

.mosaic-notice-list li::before {
  content: '■';
  position: absolute;
  left: 0;
  color: var(--kfb-black);
  font-weight: 800;
}

/* ========== リンク ========== */
.mosaic-link {
  color: var(--kfb-magenta);
  text-decoration: underline;
  font-weight: 700;
  transition: color 0.2s;
}

.mosaic-link:hover {
  color: var(--kfb-cyan);
}

/* ========== フォームボックス ========== */
.mosaic-form-box {
  text-align: center;
  padding: 3rem 2rem;
  background: rgba(255, 255, 255, 0.6);
  border: 2px solid var(--kfb-black);
  border-radius: 8px;
}

.mosaic-submit-btn {
  display: inline-block;
  font-family: var(--font-pop);
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--kfb-magenta) 0%, #ff1493 100%);
  padding: 1rem 3rem;
  border: var(--kfb-border);
  border-radius: 50px;
  box-shadow: 0 4px 0 var(--kfb-black), 0 0 0 2px rgba(255, 255, 255, 0.3) inset;
  text-decoration: none;
  margin: 1.5rem 0;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.mosaic-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--kfb-black), 0 0 0 2px rgba(255, 255, 255, 0.3) inset;
}

.mosaic-submit-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 0 var(--kfb-black), 0 0 0 2px rgba(255, 255, 255, 0.3) inset;
}

.mosaic-text--small {
  font-size: clamp(0.9rem, 2.2vw, 1rem);
  margin-top: 1.5rem;
}

/* ========== スマホ表示 ========== */
@media (max-width: 768px) {
  .mosaic-hero {
    padding: 2.5rem 1.5rem;
    background-size: cover;
    background-position: center;
  }

  .mosaic-content {
    padding: 2rem 0;
  }

  .mosaic-content-inner {
    padding: 0 1rem;
  }

  .mosaic-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
  }

  .mosaic-notice-box {
    padding: 1rem;
  }

  .mosaic-form-box {
    padding: 2rem 1rem;
  }

  .mosaic-submit-btn {
    padding: 0.875rem 2rem;
    font-size: clamp(1.1rem, 4vw, 1.3rem);
  }

  .mosaic-image {
    width: 100%;
    cursor: pointer;
  }

  .mosaic-image-modal-content {
    max-width: 100vw;
    max-height: 90vh;
  }

  .mosaic-image-modal-close {
    width: 40px;
    height: 40px;
    font-size: 20px;
    top: 0.5rem;
    right: 0.5rem;
  }
}