.user-menu-header{background:linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);padding:12px 14px;border-bottom:1px solid #e5e7eb;border-radius:8px 8px 0 0}.user-menu-header .user-name{font-weight:700;color:#0f172a}.user-menu-header .user-coin{font-size:12px;color:#64748b}.media-menu-section{border-bottom:1px solid #e5e7eb;padding-bottom:12px}.media-menu-title{font-size:11px;color:#64748b;margin-bottom:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.media-menu-item{display:grid;grid-template-columns:80px 1fr;gap:10px;align-items:center;padding:8px;background:#f9fafb;border-radius:6px;transition:background .2s ease}.media-menu-item:hover{background:#f0f4ff}.media-menu-item-label{display:flex;align-items:center;font-size:13px;font-weight:600;color:#0f172a;white-space:nowrap}.media-menu-item-buttons{display:flex;gap:4px;flex-wrap:wrap}
.likeButton{cursor:pointer}.likeButton .border{fill:#fff}.likeButton .explosion{transform-origin:250px 250px;transform:scale(0.02);stroke:#dd4688;fill:none;opacity:0;stroke-width:1;transform-origin:250px 250px}.likeButton .particleLayer{opacity:0}.likeButton .particleLayer circle{opacity:0;transform-origin:250px 250px}.likeButton .heart{fill:rgba(6,6,6,.24);transform:scale(0.8);transform-origin:250px 250px}.likeButton .goodFill{transform:scale(1, 1) translate(0%, 0%);fill:#e2264d}.likeButton.clicked .explosion{animation:explosionAnime 800ms;animation-fill-mode:forwards}.likeButton.clicked .heart{animation:heartAnime 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer{animation:particleLayerAnime 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(1){animation:particleAnimate1 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(2){animation:particleAnimate2 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(3){animation:particleAnimate3 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(4){animation:particleAnimate4 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(5){animation:particleAnimate5 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(6){animation:particleAnimate6 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(7){animation:particleAnimate7 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(8){animation:particleAnimate8 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(9){animation:particleAnimate9 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(10){animation:particleAnimate10 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(11){animation:particleAnimate11 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(12){animation:particleAnimate12 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(13){animation:particleAnimate13 800ms;animation-fill-mode:forwards}.likeButton.clicked .particleLayer circle:nth-child(14){animation:particleAnimate14 800ms;animation-fill-mode:forwards}@keyframes explosionAnime{0%{opacity:0;transform:scale(0.01)}1%{opacity:1;transform:scale(0.01)}5%{stroke-width:200}20%{stroke-width:300}50%{stroke:#cc8ef5;transform:scale(1.1);stroke-width:1}50.1%{stroke-width:0}100%{stroke:#cc8ef5;transform:scale(1.1);stroke-width:0}}@keyframes particleLayerAnime{0%{transform:translate(0, 0);opacity:0}30%{opacity:0}31%{opacity:1}60%{transform:translate(0, 0)}70%{opacity:1}100%{opacity:0;transform:translate(0, -20px)}}@keyframes particleAnimate1{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(-16px, -59px)}90%{transform:translate(-16px, -59px)}100%{opacity:1;transform:translate(-16px, -59px)}}@keyframes particleAnimate2{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(41px, 43px)}90%{transform:translate(41px, 43px)}100%{opacity:1;transform:translate(41px, 43px)}}@keyframes particleAnimate3{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(50px, -48px)}90%{transform:translate(50px, -48px)}100%{opacity:1;transform:translate(50px, -48px)}}@keyframes particleAnimate4{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(-39px, 36px)}90%{transform:translate(-39px, 36px)}100%{opacity:1;transform:translate(-39px, 36px)}}@keyframes particleAnimate5{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(-39px, 32px)}90%{transform:translate(-39px, 32px)}100%{opacity:1;transform:translate(-39px, 32px)}}@keyframes particleAnimate6{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(48px, 6px)}90%{transform:translate(48px, 6px)}100%{opacity:1;transform:translate(48px, 6px)}}@keyframes particleAnimate7{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(-69px, -36px)}90%{transform:translate(-69px, -36px)}100%{opacity:1;transform:translate(-69px, -36px)}}@keyframes particleAnimate8{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(-12px, -52px)}90%{transform:translate(-12px, -52px)}100%{opacity:1;transform:translate(-12px, -52px)}}@keyframes particleAnimate9{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(-43px, -21px)}90%{transform:translate(-43px, -21px)}100%{opacity:1;transform:translate(-43px, -21px)}}@keyframes particleAnimate10{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(-10px, 47px)}90%{transform:translate(-10px, 47px)}100%{opacity:1;transform:translate(-10px, 47px)}}@keyframes particleAnimate11{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(66px, -9px)}90%{transform:translate(66px, -9px)}100%{opacity:1;transform:translate(66px, -9px)}}@keyframes particleAnimate12{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(40px, -45px)}90%{transform:translate(40px, -45px)}100%{opacity:1;transform:translate(40px, -45px)}}@keyframes particleAnimate13{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(29px, 24px)}90%{transform:translate(29px, 24px)}100%{opacity:1;transform:translate(29px, 24px)}}@keyframes particleAnimate14{0%{transform:translate(0, 0)}30%{opacity:1;transform:translate(0, 0)}80%{transform:translate(-10px, 50px)}90%{transform:translate(-10px, 50px)}100%{opacity:1;transform:translate(-10px, 50px)}}@keyframes heartAnime{0%{transform:scale(0);fill:#e2264d}39%{transform:scale(0)}60%{transform:scale(1.2, 1.2)}70%{transform:scale(1, 1) translate(0%, -10%)}75%{transform:scale(1.1, 0.9) translate(0%, 5%)}80%{transform:scale(0.95, 1.05) translate(0%, -3%)}100%{transform:scale(1, 1) translate(0%, 0%);fill:#e2264d}}
/* ページレイアウト */
.video-gallery-page {
  background: #020617;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.video-gallery-section {
  flex: 1;
  padding: 1rem;
  display: flex;
  overflow: hidden;
}

/* 動画ギャラリーコンテナ */
.video-gallery-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
  background: radial-gradient(120% 120% at 90% 10%, rgba(99, 102, 241, 0.32) 0%, rgba(15, 23, 42, 0.95) 55%),
    linear-gradient(160deg, rgba(15, 23, 42, 0.92) 0%, rgba(30, 41, 59, 0.9) 100%);
  color: #e2e8f0;
  border-radius: 24px;
  border: 1px solid rgba(148, 163, 184, 0.16);
  box-shadow: 0 30px 90px -50px rgba(8, 47, 73, 0.9);
  backdrop-filter: blur(26px) saturate(165%);
  width: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ヘッダーセクション */
.video-gallery-header {
  margin-bottom: 1rem;
  padding: 1rem 1.5rem;
  background: rgba(15, 23, 42, 0.68);
  border-radius: 20px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  box-shadow: 0 20px 60px -40px rgba(15, 23, 42, 0.75);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-shrink: 0;
}

.video-gallery-heading {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  align-items: flex-start;
}

.video-gallery-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #f8fafc;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 1rem;
  letter-spacing: 0.02em;
}

.video-gallery-title i {
  font-size: 1.7rem;
  background: linear-gradient(135deg, #38bdf8, #6366f1);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.video-gallery-subtitle {
  font-size: 0.9rem;
  color: rgba(226, 232, 240, 0.7);
  margin: 0;
}

.btn-create-video {
  background: linear-gradient(135deg, #22d3ee 0%, #6366f1 100%);
  color: #0f172a;
  border: none;
  padding: 0.7rem 1.8rem;
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 18px 40px -18px rgba(14, 165, 233, 0.85);
  flex-shrink: 0;
}

.btn-create-video i {
  font-size: 1rem;
}

.btn-create-video:hover {
  transform: translateY(-3px);
  box-shadow: 0 25px 60px -20px rgba(14, 165, 233, 0.9);
  filter: brightness(1.05);
}

/* TikTok風縦スワイプフィード */
.video-gallery-feed {
  position: relative;
  width: 100%;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  border-radius: 20px;
  background: #000;
  outline: none;
  box-shadow: 0 30px 90px -50px rgba(8, 47, 73, 0.9);
}

.video-gallery-feed.is-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.74), rgba(30, 41, 59, 0.65));
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.video-feed-track {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.video-feed-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-feed-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  cursor: pointer;
  background: #000;
}

.video-feed-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.75), rgba(99, 102, 241, 0.75));
  color: rgba(226, 232, 240, 0.85);
  gap: 1rem;
}

.video-feed-placeholder i {
  font-size: 4rem;
  opacity: 0.6;
}

.video-feed-placeholder p {
  font-size: 1.1rem;
  margin: 0;
}

.video-feed-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 2rem 1.5rem;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.6) 60%, transparent 100%);
  color: #fff;
  pointer-events: none;
  z-index: 10;
}

.video-feed-author {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.video-feed-author i {
  color: #38bdf8;
  font-size: 1.1rem;
}

.video-feed-prompt {
  font-size: 1rem;
  line-height: 1.6;
  margin: 0 0 1rem 0;
  color: rgba(255, 255, 255, 0.95);
}

.video-feed-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.video-feed-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.8rem;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

.video-feed-chip i {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* いいねボタン */
.video-feed-actions {
  position: absolute;
  right: 1.5rem;
  bottom: 12rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 15;
}

.video-feed-favorite-btn {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 0;
  transition: transform 0.2s ease;
}

.video-feed-favorite-btn:hover {
  transform: scale(1.1);
}

.video-feed-favorite-btn:active {
  transform: scale(0.95);
}

.video-feed-favorite-btn .heart-icon {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.8));
  transition: transform 0.2s ease;
}

.video-feed-favorite-btn .favorite-count {
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

.video-feed-progress {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  backdrop-filter: blur(10px);
  z-index: 10;
}

.feed-empty {
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.74), rgba(30, 41, 59, 0.65));
  border-radius: 24px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: #cbd5f5;
  backdrop-filter: blur(18px);
  text-align: center;
  padding: 3rem;
}

.feed-empty i {
  font-size: 4rem;
  opacity: 0.6;
  margin-bottom: 1rem;
}

.feed-empty p {
  font-size: 1.1rem;
  margin: 0;
}

.feed-loading {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.7);
  padding: 1rem 1.5rem;
  border-radius: 16px;
  backdrop-filter: blur(10px);
  z-index: 20;
}

.feed-loading .spinner {
  width: 32px;
  height: 32px;
  border-width: 3px;
  margin: 0 auto 0.5rem;
}

.feed-loading p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
}

/* エラー・空メッセージ */
.video-gallery-error,
.video-gallery-empty {
  text-align: center;
  padding: 3rem;
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.74), rgba(30, 41, 59, 0.65));
  border-radius: 24px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: #cbd5f5;
  backdrop-filter: blur(18px);
  box-shadow: 0 25px 65px -45px rgba(15, 23, 42, 0.9);
}

.video-gallery-error i,
.video-gallery-empty i {
  font-size: 3.2rem;
  margin-bottom: 1rem;
  opacity: 0.65;
}

.video-gallery-error p,
.video-gallery-empty p {
  font-size: 1.1rem;
  margin: 0;
}

.video-gallery-error {
  background: linear-gradient(145deg, rgba(239, 68, 68, 0.18), rgba(30, 41, 59, 0.7));
  border-color: rgba(239, 68, 68, 0.35);
}

/* グリッドレイアウト */
.video-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2.3rem;
  margin-bottom: 3rem;
}

/* 動画カード */
.video-gallery-card {
  background: linear-gradient(155deg, rgba(15, 23, 42, 0.9) 5%, rgba(15, 23, 42, 0.72) 95%);
  border-radius: 22px;
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  border: 1px solid rgba(148, 163, 184, 0.08);
  box-shadow: 0 22px 60px -35px rgba(8, 47, 73, 0.85);
  backdrop-filter: blur(18px);
}

.video-gallery-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(120deg, rgba(56, 189, 248, 0.12) 0%, rgba(99, 102, 241, 0.16) 45%, rgba(236, 72, 153, 0.08) 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.video-gallery-card:hover {
  transform: translateY(-9px) scale(1.01);
  box-shadow: 0 30px 70px -35px rgba(56, 189, 248, 0.6);
  border-color: rgba(99, 102, 241, 0.4);
}

.video-gallery-card:hover::after {
  opacity: 1;
}

/* サムネイル */
.video-card-thumbnail {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  background: #000;
  overflow: hidden;
}

.video-thumbnail,
.video-thumbnail-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-thumbnail-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.75), rgba(99, 102, 241, 0.75));
  color: rgba(226, 232, 240, 0.85);
  font-size: 1.4rem;
  gap: 0.4rem;
}

.video-thumbnail-placeholder i {
  font-size: 3rem;
  opacity: 0.6;
}

/* カードオーバーレイ */
.video-card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, rgba(15, 23, 42, 0) 25%, rgba(15, 23, 42, 0.75) 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.video-gallery-card:hover .video-card-overlay {
  opacity: 1;
}

.video-card-overlay i {
  font-size: 3.6rem;
  color: rgba(226, 232, 240, 0.9);
  transform: translateY(12px);
  transition: transform 0.35s ease, opacity 0.35s ease;
  opacity: 0;
}

.video-gallery-card:hover .video-card-overlay i {
  opacity: 1;
  transform: translateY(0);
}

/* 動画時間バッジ */
.video-card-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(15, 118, 110, 0.85);
  color: #ecfeff;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* カード情報 */
.video-card-info {
  padding: 1.35rem 1.35rem 1.4rem;
}

.video-card-prompt {
  font-size: 1rem;
  color: rgba(226, 232, 240, 0.88);
  margin: 0 0 1.1rem 0;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 3.3em;
}

.video-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(148, 163, 184, 0.85);
  gap: 0.75rem;
}

.video-card-author,
.video-card-ratio {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: rgba(51, 65, 85, 0.35);
  color: rgba(226, 232, 240, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.video-card-author i,
.video-card-ratio i {
  opacity: 0.8;
  color: #38bdf8;
}

/* ローディング */
.video-gallery-loading {
  text-align: center;
  padding: 3rem;
  color: rgba(226, 232, 240, 0.85);
}

.spinner {
  border: 4px solid rgba(148, 163, 184, 0.25);
  border-top: 4px solid rgba(56, 189, 248, 0.75);
  border-radius: 50%;
  width: 52px;
  height: 52px;
  animation: spin 1s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* もっと見るボタン */
.video-gallery-load-more {
  text-align: center;
  padding: 1rem 0 0.5rem;
  flex-shrink: 0;
}

.btn-load-more {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.95) 0%, rgba(129, 140, 248, 0.95) 100%);
  color: #0f172a;
  border: none;
  padding: 0.7rem 2rem;
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
  box-shadow: 0 18px 45px -18px rgba(56, 189, 248, 0.75);
}

.btn-load-more:hover {
  transform: translateY(-3px);
  box-shadow: 0 25px 60px -25px rgba(56, 189, 248, 0.85);
  filter: brightness(1.05);
}

/* モーダル */
.video-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(18px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 2rem;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.video-modal-content {
  background: linear-gradient(160deg, rgba(15, 23, 42, 0.97), rgba(15, 23, 42, 0.93));
  border-radius: 28px;
  max-width: 1200px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: slideUp 0.3s ease;
  border: 1px solid rgba(148, 163, 184, 0.16);
  box-shadow: 0 35px 85px -45px rgba(8, 47, 73, 0.95);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.video-modal-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  background: rgba(15, 23, 42, 0.75);
  color: rgba(226, 232, 240, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.2);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
  z-index: 10;
}

.video-modal-close:hover {
  background: rgba(99, 102, 241, 0.95);
  color: #0f172a;
  transform: scale(1.05) rotate(180deg);
}

.video-modal-player {
  background: radial-gradient(circle at 20% 20%, rgba(15, 118, 110, 0.35), rgba(15, 23, 42, 0.9));
  position: relative;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  border-radius: 28px 28px 0 0;
  overflow: hidden;
}

.video-player,
.video-not-available {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.video-player {
  object-fit: contain;
}

.video-not-available {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(226, 232, 240, 0.8);
  gap: 1rem;
}

.video-not-available i {
  font-size: 3rem;
  opacity: 0.55;
}

/* モーダル情報セクション */
.video-modal-info {
  padding: 2.35rem;
}

.video-modal-title {
  font-size: 1.35rem;
  color: #f8fafc;
  margin: 0 0 1rem 0;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.video-modal-prompt {
  font-size: 1rem;
  color: rgba(226, 232, 240, 0.85);
  line-height: 1.85;
  margin: 0 0 1.8rem 0;
  padding: 1.2rem 1.3rem;
  background: rgba(30, 41, 59, 0.75);
  border-radius: 16px;
  border: 1px solid rgba(99, 102, 241, 0.25);
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.08);
}

.video-modal-details {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.video-detail-item {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1.1rem;
  background: rgba(30, 41, 59, 0.8);
  border-radius: 999px;
  font-size: 0.9rem;
  color: rgba(226, 232, 240, 0.82);
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.video-detail-item i {
  color: #38bdf8;
  font-size: 1rem;
}

/* レスポンシブ対応 */
@media (max-width: 1024px) {
  .video-gallery-container {
    padding: 2.5rem 1.5rem 4rem;
  }

  .video-gallery-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .video-gallery-grid {
    gap: 2rem;
  }

  .video-gallery-feed {
    height: 70vh;
  }

  .video-feed-overlay {
    padding: 1.5rem 1.25rem;
  }
}

@media (max-width: 768px) {
  .video-gallery-page {
    height: 100vh;
  }

  .video-gallery-section {
    padding: 0;
  }

  .video-gallery-container {
    padding: 0;
    margin: 0;
    max-width: 100%;
    border-radius: 0;
    border: none;
    background: #020617;
    height: 100%;
  }

  .video-gallery-header {
    align-items: center;
    justify-content: center; /* ボタンを中央に配置 */
    text-align: center;
    margin-bottom: 0;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
    padding: 0.8rem 1rem;
  }

  .video-gallery-heading {
    display: none; /* モバイルでヘッディングを非表示 */
  }

  .video-gallery-title {
    font-size: 1.4rem;
    margin: 0;
    padding: 0;
  }

  /* モバイルでタイトルと説明テキストを非表示 */
  .video-gallery-title-text,
  .video-gallery-subtitle-text {
    display: none;
  }

  .video-gallery-title i {
    font-size: 1.4rem;
    margin: 0;
  }

  .video-gallery-subtitle {
    margin: 0;
    padding: 0;
    font-size: 0.8rem;
  }

  .btn-create-video {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
  }

  .video-gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
  }

  .video-modal-overlay {
    padding: 1.25rem;
  }

  .video-modal-info {
    padding: 1.5rem;
  }

  .video-gallery-feed {
    border-radius: 0;
  }

  .video-feed-overlay {
    padding: 1.25rem 1rem;
  }

  .video-feed-prompt {
    font-size: 0.95rem;
  }

  .video-feed-chip {
    font-size: 0.8rem;
    padding: 0.35rem 0.7rem;
  }

  .video-feed-actions {
    right: 1rem;
    bottom: 9rem;
  }

  .video-feed-progress {
    top: 1rem;
    right: 1rem;
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
  }

  .video-gallery-load-more {
    padding: 0.8rem 0 0.5rem;
  }

  .btn-load-more {
    padding: 0.6rem 1.5rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 540px) {
  .video-gallery-header {
    flex-direction: column;
    align-items: stretch;
    text-align: left;
    gap: 0.8rem;
  }

  .video-gallery-heading {
    align-items: flex-start;
  }

  .video-gallery-grid {
    grid-template-columns: 1fr;
  }

  .video-gallery-title {
    font-size: 1.3rem;
    flex-direction: row;
    gap: 0.5rem;
  }

  .btn-create-video {
    width: 100%;
    justify-content: center;
    padding: 0.7rem 1.2rem;
  }

  .video-feed-overlay {
    padding: 1rem 0.85rem;
  }

  .video-feed-author {
    font-size: 0.9rem;
  }

  .video-feed-prompt {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .video-feed-meta-row {
    gap: 0.5rem;
  }

  .video-feed-chip {
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
  }

  .video-feed-actions {
    right: 0.8rem;
    bottom: 7rem;
  }

  .video-feed-progress {
    font-size: 0.8rem;
  }
}