:root {
  --color-bg: #05060f;
  --color-surface: rgba(20, 22, 42, 0.72);
  --color-surface-solid: #12142a;
  --color-primary: #00e5ff;
  --color-secondary: #ff2e88;
  --color-accent: #7c4dff;
  --color-text: #eef1ff;
  --color-text-muted: #8891b5;
  --color-border: rgba(0, 229, 255, 0.22);
  --color-danger: #ff4d6d;
  --color-success: #00ffa3;
  --radius: 18px;
  --shadow: 0 10px 34px rgba(0, 0, 0, 0.45);
  --glow-primary: 0 0 18px rgba(0, 229, 255, 0.45);
  --glow-secondary: 0 0 26px rgba(255, 46, 136, 0.3);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  font-size: 17px;
  color: var(--color-text);
  line-height: 1.6;
  padding-bottom: 84px;
  background-color: var(--color-bg);
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255, 46, 136, 0.16), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(0, 229, 255, 0.16), transparent 42%),
    radial-gradient(circle at 50% 100%, rgba(124, 77, 255, 0.14), transparent 48%);
  background-attachment: fixed;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

/* ---------- ローディングオーバーレイ ---------- */
.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(5, 6, 15, 0.78);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.loading-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.loading-spinner {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.08);
  border-top-color: var(--color-primary);
  border-right-color: var(--color-secondary);
  animation: spin 0.8s linear infinite;
  box-shadow: var(--glow-primary), var(--glow-secondary);
}

.loading-label {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

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

/* ---------- ヘッダー ---------- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  background: rgba(10, 11, 24, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.app-header .logo {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.03em;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 10px rgba(0, 229, 255, 0.35));
}

.app-header .welcome {
  font-size: 14px;
  color: var(--color-text-muted);
}

.hamburger-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-primary);
}

/* ---------- ハンバーガーメニュー ---------- */
.hamburger-menu {
  position: fixed;
  inset: 0;
  background: rgba(3, 4, 12, 0.6);
  backdrop-filter: blur(2px);
  display: none;
  z-index: 20;
}

.hamburger-menu.open {
  display: block;
}

.hamburger-menu-panel {
  background: linear-gradient(180deg, rgba(18, 20, 42, 0.96), rgba(10, 11, 24, 0.98));
  border-right: 1px solid var(--color-border);
  box-shadow: var(--glow-primary);
  width: 78%;
  max-width: 320px;
  height: 100%;
  padding: 22px;
}

.hamburger-menu-panel h2 {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-top: 0;
  letter-spacing: 0.05em;
}

.hamburger-menu-panel ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hamburger-menu-panel li a,
.hamburger-menu-panel li button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 15px 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--color-text);
  background: none;
  border-left: none;
  border-right: none;
  border-top: none;
  font-size: 17px;
  cursor: pointer;
  transition: color 0.15s ease;
}

.hamburger-menu-panel li a:hover,
.hamburger-menu-panel li button:hover {
  color: var(--color-primary);
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
}

main {
  max-width: 480px;
  margin: 0 auto;
  padding: 18px 16px;
}

/* ---------- カード ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  padding: 18px;
  margin-bottom: 18px;
}

.card h2 {
  margin-top: 0;
  font-size: 19px;
  color: var(--color-primary);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}

/* ---------- ボタン ---------- */
.btn {
  display: inline-block;
  width: 100%;
  padding: 17px 20px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  color: #04050d;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  text-align: center;
  box-shadow: var(--glow-primary), var(--glow-secondary);
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 0 26px rgba(0, 229, 255, 0.6), 0 0 42px rgba(255, 46, 136, 0.4);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
}

.btn:disabled {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-muted);
  box-shadow: none;
  cursor: not-allowed;
}

.btn + .btn {
  margin-top: 12px;
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.18) inset;
}

/* ---------- フォーム ---------- */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 13px 15px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 17px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.18);
}

.password-field {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 14px;
}

.error-message {
  color: var(--color-danger);
  font-size: 14px;
  margin: 8px 0;
}

.info-message {
  color: var(--color-success);
  font-size: 14px;
  margin: 8px 0;
}

/* ---------- カルーセル ---------- */
.carousel {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.carousel img {
  width: 220px;
  height: 130px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: var(--glow-primary);
  flex-shrink: 0;
}

/* ---------- お知らせ ---------- */
.news-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 12px 0;
}

.news-item:last-child {
  border-bottom: none;
}

.news-item .date {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ---------- ステータスバッジ ---------- */
.status-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
}

.status-badge.open {
  background: rgba(0, 255, 163, 0.1);
  color: var(--color-success);
  box-shadow: 0 0 12px rgba(0, 255, 163, 0.35);
}

.status-badge.closed {
  background: rgba(255, 77, 109, 0.1);
  color: var(--color-danger);
  box-shadow: 0 0 12px rgba(255, 77, 109, 0.3);
}

/* ---------- 下部ナビ ---------- */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: rgba(9, 10, 22, 0.85);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--color-border);
  z-index: 10;
}

.bottom-nav a {
  flex: 1;
  text-align: center;
  padding: 13px 4px 11px;
  font-size: 13px;
  color: var(--color-text-muted);
  position: relative;
  transition: color 0.15s ease;
}

.bottom-nav a.active {
  color: var(--color-primary);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
}

.bottom-nav a.active::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.7);
}

/* ---------- ポイント ---------- */
.point-balance {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-primary);
  text-shadow: 0 0 18px rgba(0, 229, 255, 0.5);
}

/* ---------- クーポン / チケット ---------- */
.coupon-list,
.ticket-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.coupon-item {
  border: 1px dashed var(--color-primary);
  border-radius: var(--radius);
  padding: 14px;
  background: rgba(0, 229, 255, 0.04);
}

.coupon-item.used {
  opacity: 0.45;
  border-style: solid;
  border-color: rgba(255, 255, 255, 0.12);
  background: none;
}

/* ---------- カレンダー ---------- */
.calendar-table {
  width: 100%;
  border-collapse: collapse;
}

.calendar-table th,
.calendar-table td {
  padding: 11px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 14px;
  text-align: left;
}

.calendar-table th {
  color: var(--color-text-muted);
  font-weight: 600;
}

.placeholder-note {
  color: var(--color-text-muted);
  font-size: 14px;
  text-align: center;
  padding: 24px 0;
}

/* ---------- 認証ページ ---------- */
.auth-page main {
  max-width: 420px;
  padding-top: 56px;
}

.auth-logo {
  text-align: center;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0.03em;
  margin-bottom: 26px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 14px rgba(0, 229, 255, 0.4));
}

.link-row {
  text-align: center;
  margin-top: 18px;
  font-size: 15px;
}

/* ---------- レスポンシブ（タブレット〜PC） ---------- */
@media (min-width: 768px) {
  body {
    padding-bottom: 120px;
  }

  main {
    max-width: 720px;
    padding: 32px 28px 40px;
  }

  .app-header {
    padding: 18px 32px;
  }

  .card {
    padding: 24px;
  }

  .carousel img {
    width: 280px;
    height: 160px;
  }

  /* 一覧系はPCでは1列固定ではなく折り返しグリッドにして横幅を活かす */
  .coupon-list,
  .ticket-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
  }

  /* 下部固定バーではなく、フロートするドック風ナビに切り替える */
  .bottom-nav {
    left: 50%;
    right: auto;
    bottom: 24px;
    transform: translateX(-50%);
    width: min(560px, calc(100% - 48px));
    border: 1px solid var(--color-border);
    border-radius: 999px;
    box-shadow: var(--shadow), var(--glow-primary);
    overflow: hidden;
  }

  .bottom-nav a {
    padding: 14px 8px;
  }
}

@media (min-width: 1100px) {
  main {
    max-width: 960px;
  }
}

/* フォーム画面は横幅を活かす必要がないので常に読みやすい幅に固定する */
@media (min-width: 768px) {
  .auth-page main {
    max-width: 440px;
  }
}