@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Outfit:wght@500;600;700;800;900&display=swap');

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-glass: rgba(26, 35, 58, 0.65);
  --bg-glass-hover: rgba(36, 48, 79, 0.8);
  --bg-glass-border: rgba(255, 255, 255, 0.08);
  --bg-glass-border-hover: rgba(255, 255, 255, 0.2);
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dark: #1e293b;

  --accent-amber: #f59e0b;
  --accent-amber-glow: rgba(245, 158, 11, 0.35);
  --accent-gradient: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
  
  --accent-cyan: #06b6d4;
  --accent-cyan-glow: rgba(6, 182, 212, 0.35);
  --cyan-gradient: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);

  --accent-emerald: #10b981;
  --accent-emerald-glow: rgba(16, 185, 129, 0.3);
  --emerald-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* オーロラアニメーション背景 */
.aurora-bg {
  position: fixed;
  top: -30%;
  left: -20%;
  width: 140%;
  height: 160%;
  z-index: -1;
  pointer-events: none;
  background: 
    radial-gradient(circle at 20% 30%, rgba(245, 158, 11, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  filter: blur(80px);
  animation: auroraMove 25s ease-in-out infinite alternate;
}

@keyframes auroraMove {
  0% { transform: scale(1) translate(0, 0); }
  50% { transform: scale(1.08) translate(-3%, 4%); }
  100% { transform: scale(0.95) translate(4%, -3%); }
}

/* ヘッダー */
.top-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 26, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--bg-glass-border);
  padding: 1.1rem 2rem;
}

.nav-container {
  max-width: 1320px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
  text-decoration: none;
}

.brand-logo {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 6px 20px var(--accent-amber-glow);
  transform: rotate(-3deg);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand:hover .brand-logo {
  transform: rotate(3deg) scale(1.08);
}

.brand-text span {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-amber);
  display: block;
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 900;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* ボタン共通 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--bg-glass-border);
  color: var(--text-main);
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 15px var(--accent-amber-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-amber-glow);
}

.btn-admin {
  background: var(--cyan-gradient);
  color: #ffffff;
  box-shadow: 0 4px 15px var(--accent-cyan-glow);
}

.btn-admin:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-cyan-glow);
}

/* メインコンテナ */
.main-content {
  flex: 1;
  max-width: 1320px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 2rem 4rem;
}

/* ヒーローセクション */
.hero-section {
  text-align: center;
  margin-bottom: 3rem;
  animation: fadeInDown 0.6s ease-out;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto;
  line-height: 1.6;
}

/* フィルターと検索コントロール */
.controls-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.category-tabs {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.tab-pill {
  padding: 0.6rem 1.25rem;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--bg-glass-border);
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.tab-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
}

.tab-pill.active {
  background: var(--accent-gradient);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-amber-glow);
}

.search-box {
  position: relative;
  min-width: 280px;
  flex-grow: 1;
  max-width: 380px;
}

.search-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.1rem;
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.8rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--bg-glass-border);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: all 0.25s ease;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-amber);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15);
}

/* ツールカードグリッド */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 1.75rem;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* カードスタイル */
.tool-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--bg-glass-border);
  border-radius: 22px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tool-card:hover {
  transform: translateY(-6px);
  border-color: var(--bg-glass-border-hover);
  background: var(--bg-glass-hover);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
}

.tool-card:hover::before {
  opacity: 1;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  flex-shrink: 0;
}

.card-badge {
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.badge-roughlaugh {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-family {
  background: rgba(236, 72, 153, 0.15);
  color: #f472b6;
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.badge-utility {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.card-body {
  margin-bottom: 1.5rem;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
  color: #ffffff;
  line-height: 1.35;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.card-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.card-btn {
  flex: 1;
  min-width: 140px;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  transition: all 0.2s ease;
  cursor: pointer;
}

.card-btn-public {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.card-btn-public:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.card-btn-admin {
  background: var(--emerald-gradient);
  color: #fff;
  box-shadow: 0 4px 12px var(--accent-emerald-glow);
  border: none;
}

.card-btn-admin:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--accent-emerald-glow);
}

.card-btn-copy {
  padding: 0.7rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--bg-glass-border);
  transition: all 0.2s;
}

.card-btn-copy:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* 管理画面専用バナー＆ステータス表示 */
.admin-badge-bar {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 16px;
  padding: 1rem 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInDown 0.5s ease-out;
}

.admin-badge-bar .user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  color: #34d399;
}

.admin-note {
  font-size: 0.8rem;
  color: #cbd5e1;
  background: rgba(0, 0, 0, 0.3);
  padding: 0.6rem 0.85rem;
  border-radius: 10px;
  margin-top: 0.75rem;
  border-left: 3px solid var(--accent-amber);
}

/* トースト通知 */
.toast {
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  padding: 1rem 1.6rem;
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  z-index: 999;
  transform: translateY(150%);
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* アニメーションキーフレーム */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-15px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* フッター */
footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--bg-glass-border);
  color: var(--text-muted);
  font-size: 0.85rem;
  background: rgba(10, 14, 26, 0.6);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .top-nav { padding: 1rem 1.25rem; }
  .main-content { padding: 1.75rem 1.25rem 3rem; }
  .hero-title { font-size: 1.85rem; }
  .tools-grid { grid-template-columns: 1fr; }
  .controls-bar { flex-direction: column; align-items: stretch; }
  .search-box { max-width: 100%; }
}