/* ═══════════════════════════════════════════════════════════
   SnipeGuard Hub — デザインシステム & スタイルシート
   ════════════════════════════════════════════════════════ */

/* ─── カスタムプロパティ ─────────────────────────────────── */
:root {
  /* カラーパレット（ダークモード） */
  --bg-base:        #080c12;
  --bg-surface:     #0e1420;
  --bg-elevated:    #141c2e;
  --bg-glass:       rgba(20, 28, 46, 0.7);
  --bg-glass-dim:   rgba(14, 20, 32, 0.5);

  --accent-blue:    #3b82f6;
  --accent-purple:  #8b5cf6;
  --accent-cyan:    #06b6d4;

  /* 危険度カラー */
  --danger-red:     #ef4444;
  --danger-red-bg:  rgba(239, 68, 68, 0.12);
  --danger-red-glow:rgba(239, 68, 68, 0.3);

  --caution-yellow: #f59e0b;
  --caution-yellow-bg: rgba(245, 158, 11, 0.12);
  --caution-yellow-glow: rgba(245, 158, 11, 0.3);

  --safe-green:     #10b981;
  --safe-green-bg:  rgba(16, 185, 129, 0.12);
  --safe-green-glow:rgba(16, 185, 129, 0.3);

  --unknown-gray:   #6b7280;
  --unknown-gray-bg:rgba(107, 114, 128, 0.12);

  /* テキスト */
  --text-primary:   #f0f4ff;
  --text-secondary: #8892a4;
  --text-muted:     #4a5568;

  /* ボーダー */
  --border-subtle:  rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.1);
  --border-strong:  rgba(255, 255, 255, 0.2);

  /* タイポグラフィ */
  --font-sans:  'Inter', system-ui, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;

  /* スペーシング */
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  18px;
  --radius-xl:  24px;

  /* トランジション */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── リセット & ベース ──────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(59, 130, 246, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
}

/* ─── ユーティリティ ─────────────────────────────────────── */
.mono { font-family: var(--font-mono); }
[hidden] { display: none !important; }

/* ─── グラスモーフィズム ─────────────────────────────────── */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
}

.glass-panel-dim {
  background: var(--bg-glass-dim);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

/* ─── オーバーレイ ────────────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4, 7, 13, 0.85);
  backdrop-filter: blur(8px);
  z-index: 9999;
  padding: 1rem;
  animation: fadeIn 0.3s var(--ease-out);
}

/* ─── 認証モーダル ────────────────────────────────────────── */
.modal {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem;
  animation: slideUp 0.4s var(--ease-out);
}

.modal-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.logo-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 0.75rem;
  animation: pulse 3s ease-in-out infinite;
}

.modal-logo h1 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-accent {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.4rem;
  letter-spacing: 0.05em;
}

/* ─── フォーム共通 ────────────────────────────────────────── */
.field-group {
  margin-bottom: 1.1rem;
}

.field-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.65rem 0.9rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

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

.form-error {
  font-size: 0.8rem;
  color: var(--danger-red);
  min-height: 1.2rem;
  margin-top: 0.5rem;
}

/* ─── ボタン ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.875rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.18s var(--ease-in-out);
  white-space: nowrap;
  outline: none;
  padding: 0.55rem 1.1rem;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.4);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  color: #fff;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.25);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn-primary:active { transform: translateY(0); }

.btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-warning {
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--caution-yellow);
  transition: all 0.18s var(--ease-in-out), opacity 0.3s, cursor 0.1s;
}

.btn-warning:hover:not(:disabled) {
  background: rgba(245, 158, 11, 0.25);
  border-color: rgba(245, 158, 11, 0.5);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.btn-danger-outline {
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--danger-red);
  padding: 0.3rem 0.6rem;
  font-size: 0.75rem;
  border-radius: 6px;
}

.btn-danger-outline:hover {
  background: rgba(239, 68, 68, 0.1);
}

.btn-full { width: 100%; }
.btn-sm { font-size: 0.8rem; padding: 0.4rem 0.8rem; }

.btn-spinner {
  display: inline-block;
  animation: spin 1s linear infinite;
}

/* ─── トップバー ─────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.5rem;
  background: rgba(8, 12, 18, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.brand-text { color: var(--text-primary); }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* 接続インジケーター */
.conn-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.conn-dot.connecting { background: var(--caution-yellow); animation: blink 1.2s ease-in-out infinite; }
.conn-dot.connected  { background: var(--safe-green); }
.conn-dot.error      { background: var(--danger-red); }

/* ─── ダッシュボード レイアウト ──────────────────────────── */
.dashboard {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ─── ユーザーステータスカード ───────────────────────────── */
.user-status-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.user-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.4rem 1rem;
  gap: 1rem;
  position: relative;    /* プログレスバーの absolute 基準 */
  overflow: hidden;
  padding-bottom: 1.2rem; /* バー分の余白 */
}

.user-card-left {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background 0.4s, box-shadow 0.4s;
}

.status-dot.lobby {
  background: var(--safe-green);
  box-shadow: 0 0 0 3px var(--safe-green-glow);
  animation: pulse-green 2.5s ease-in-out infinite;
}

.status-dot.standby {
  background: var(--unknown-gray);
  box-shadow: none;
  animation: none;
}

.user-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.user-status-row {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.15rem;
}

.user-status-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.countdown-inline {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

/* カード底辺プログレスバー */
.countdown-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--border-subtle);
}

.countdown-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  width: 100%;
  transition: width 1s linear;
}

/* ─── ターゲット追加フォーム ──────────────────────────────── */
.add-target-section {}

.add-form {
  padding: 1rem 1.2rem;
}

.add-form-fields {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.add-input {
  flex: 1;
  min-width: 180px;
  padding: 0.55rem 0.8rem;
  font-size: 0.9rem;
}

/* ─── ターゲットセクションヘッダー ──────────────────── */
.targets-header {
  margin-bottom: 0.6rem;
}

.targets-title-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.targets-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.targets-counter {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: 20px;
  padding: 0.1rem 0.5rem;
}

.targets-remaining {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

/* ─── ヘルプツールチップ ────────────────────── */
.help-wrap {
  position: relative;
  display: inline-flex;
}

.help-btn {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--border-default);
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary);
  font-size: 0.65rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, background 0.2s;
  flex-shrink: 0;
}

.help-btn:hover {
  border-color: var(--accent-blue);
  background: rgba(59,130,246,0.1);
  color: var(--accent-blue);
}

.help-tooltip {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  width: max-content;
  max-width: calc(100vw - 40px);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem;
  z-index: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  pointer-events: none;
}

/* 画面右端に近い場合は左寄せ */
.help-wrap:hover .help-tooltip,
.help-btn:focus + .help-tooltip {
  display: block;
}

.help-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.help-tooltip ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 0.7rem;
}

.help-tooltip li {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  gap: 0.4rem;
  align-items: baseline;
  white-space: nowrap;
}

.tip-icon { flex-shrink: 0; }

.help-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.5rem;
  margin-top: 0.1rem;
}

/* ─── ターゲットリスト ──────────────────────── */
.targets-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* ─── ターゲットリスト行 ──────────────────────── */
.target-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out),
              border-color 0.3s, background 0.3s;
  animation: cardIn 0.3s var(--ease-out);
  gap: 1rem;
}

.target-row:hover {
  transform: translateX(4px);
  background: rgba(255, 255, 255, 0.02);
}

/* 危険度スタイル */
.target-row.DANGER {
  border-color: var(--danger-red);
  background: var(--danger-red-bg);
  box-shadow: 0 0 15px var(--danger-red-glow);
}
.target-row.CAUTION {
  border-color: var(--caution-yellow);
  background: var(--caution-yellow-bg);
  box-shadow: 0 0 10px var(--caution-yellow-glow);
}
.target-row.SAFE {
  border-color: var(--safe-green);
  background: var(--safe-green-bg);
}
.target-row.UNKNOWN {
  border-color: var(--border-subtle);
  background: var(--unknown-gray-bg);
}

.row-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.row-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
  word-break: break-all;
}

.row-tag {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-left: 0.2rem;
}

.row-meta {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.row-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.5rem;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}

.row-remove {
  opacity: 0.4;
  transition: opacity 0.2s, color 0.2s;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.2rem;
  font-size: 0.9rem;
  line-height: 1;
}

.target-row:hover .row-remove {
  opacity: 1;
}

.row-remove:hover {
  color: var(--danger-red);
}

/* ─── ターゲットカード ────────────────────────────────────── */
.target-card {
  position: relative;
  padding: 1.25rem 1.3rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s var(--ease-out),
              border-color 0.4s, background 0.4s;
  animation: cardIn 0.35s var(--ease-out);
  overflow: hidden;
}

.target-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.target-card:hover {
  transform: translateY(-3px);
}

/* 危険度スタイル */
.target-card.DANGER {
  border-color: var(--danger-red);
  background: var(--danger-red-bg);
  box-shadow: 0 0 30px var(--danger-red-glow), inset 0 0 20px rgba(239,68,68,0.05);
}
.target-card.DANGER::before { background: linear-gradient(135deg, rgba(239,68,68,0.08), transparent); opacity: 1; }
.target-card.DANGER:hover { box-shadow: 0 0 50px var(--danger-red-glow), 0 12px 30px rgba(0,0,0,0.3); }

.target-card.CAUTION {
  border-color: var(--caution-yellow);
  background: var(--caution-yellow-bg);
  box-shadow: 0 0 20px var(--caution-yellow-glow);
}
.target-card.CAUTION::before { background: linear-gradient(135deg, rgba(245,158,11,0.08), transparent); opacity: 1; }

.target-card.SAFE {
  border-color: var(--safe-green);
  background: var(--safe-green-bg);
  box-shadow: 0 0 20px var(--safe-green-glow);
}
.target-card.SAFE::before { background: linear-gradient(135deg, rgba(16,185,129,0.08), transparent); opacity: 1; }

.target-card.UNKNOWN {
  border-color: var(--border-subtle);
  background: var(--unknown-gray-bg);
}

/* カードヘッダー */
.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.9rem;
  gap: 0.5rem;
}

.card-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
  word-break: break-all;
}

.card-tag {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  margin-top: 0.15rem;
}

.card-remove {
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.2s;
}

.target-card:hover .card-remove { opacity: 1; }

/* バッジ */
.card-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.7rem;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.badge-DANGER  { background: rgba(239,68,68,0.2);    color: #fca5a5; border: 1px solid rgba(239,68,68,0.4);    }
.badge-CAUTION { background: rgba(245,158,11,0.2);   color: #fcd34d; border: 1px solid rgba(245,158,11,0.4);   }
.badge-SAFE    { background: rgba(16,185,129,0.2);   color: #6ee7b7; border: 1px solid rgba(16,185,129,0.4);   }
.badge-UNKNOWN { background: rgba(107,114,128,0.2);  color: #9ca3af; border: 1px solid rgba(107,114,128,0.4);  }

.card-meta {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* DANGER カードのアニメーション */
.target-card.DANGER .card-badge {
  animation: danger-pulse 1.5s ease-in-out infinite;
}

/* ─── エンプティステート ──────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* ─── エラーモーダル ─────────────────────────────────────── */
.modal-error {
  text-align: center;
  max-width: 380px;
}

.error-icon { font-size: 4rem; margin-bottom: 1rem; }

.modal-error h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--danger-red);
  margin-bottom: 0.75rem;
}

.modal-error p {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 0.9rem;
}

/* ─── キーフレーム ───────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.05); }
}

@keyframes pulse-green {
  0%, 100% { box-shadow: 0 0 0 3px rgba(16,185,129,0.3); }
  50%       { box-shadow: 0 0 0 6px rgba(16,185,129,0.1); }
}

@keyframes danger-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.7; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── レスポンシブ ───────────────────────────────────────── */
@media (max-width: 600px) {
  .user-card { flex-direction: column; align-items: flex-start; }
  .add-form-fields { flex-direction: column; }
  .add-input, .add-input-tag { width: 100%; max-width: none; }
  .hash-sep { display: none; }
  .targets-grid { grid-template-columns: 1fr; }
  .modal { padding: 1.75rem 1.25rem; }
}