/* ==========================================================================
   🌸 デザインシステム & スタイル定義: イビカ コンディション天気予報
   ========================================================================== */

/* 1. フォントのインポート */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&family=Outfit:wght@300;400;600;800&display=swap');

/* 2. CSS変数 (カラーパレット & 共通設定) */
:root {
  --color-bg-start: #FFF3F5;
  --color-bg-mid: #FFE4E8;
  --color-bg-end: #FFD2DC;
  
  --color-primary: #FF8E9E;
  --color-primary-light: #FFB7C5;
  --color-primary-dark: #E06A7B;
  
  --color-text-main: #4A2E35;
  --color-text-sub: #8A6E75;
  --color-text-white: #FFFFFF;
  
  --color-gold: #FFD700;
  --color-gold-light: #FFF0B3;
  --color-success: #8DE0A6;
  --color-info: #8AD4FF;
  
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-bg-hover: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 12px 40px -10px rgba(255, 183, 197, 0.3);
  --glass-shadow-hover: 0 20px 50px -10px rgba(255, 142, 158, 0.4);
  
  --font-en: 'Outfit', sans-serif;
  --font-jp: 'Noto Sans JP', sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 3. 基本リセット & 共通スタイル */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-jp);
  color: var(--color-text-main);
  min-height: 100vh;
  background: linear-gradient(135deg, var(--color-bg-start) 0%, var(--color-bg-mid) 50%, var(--color-bg-end) 100%);
  background-attachment: fixed;
  position: relative;
  line-height: 1.6;
}

/* 桜の花びらが舞うような背景の装飾 */
body::before, body::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 183, 197, 0.4) 0%, rgba(255, 255, 255, 0) 70%);
  z-index: -1;
  filter: blur(40px);
  pointer-events: none;
}

body::before {
  top: 10%;
  left: -50px;
  animation: floatBackground 20s infinite alternate ease-in-out;
}

body::after {
  bottom: 10%;
  right: -50px;
  animation: floatBackground 25s infinite alternate-reverse ease-in-out;
}

@keyframes floatBackground {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 30px) scale(1.2); }
}

a {
  color: inherit;
  text-decoration: none;
}

/* 4. グローバルレイアウト & コンテナ */
.app-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px 80px 20px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

/* ヘッダー */
header {
  text-align: center;
  margin-bottom: 10px;
  animation: fadeInDown 1s var(--transition-smooth);
}

.logo-container {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.logo-badge {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-text-white);
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  box-shadow: 0 4px 15px rgba(255, 142, 158, 0.3);
}

h1 {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  margin-top: 10px;
  text-shadow: 0 2px 10px rgba(255, 255, 255, 0.5);
}

.subtitle {
  font-size: 0.95rem;
  color: var(--color-text-sub);
  margin-top: 5px;
}

/* 5. ガラスモルフィズム共通カード */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(120%);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 30px;
  box-shadow: var(--glass-shadow);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  background: var(--glass-bg-hover);
  box-shadow: var(--glass-shadow-hover);
  transform: translateY(-2px);
}

/* カードのタイトル */
.section-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-left: 4px solid var(--color-primary);
  padding-left: 12px;
}

/* 6. 今日のイビカ天気 (メインセクション) */
.today-section {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 30px;
  animation: fadeInUp 1s var(--transition-smooth);
}

/* メインの巨大カード */
.today-weather-card {
  display: flex;
  align-items: center;
  justify-content: space-around;
  position: relative;
  overflow: hidden;
  padding: 40px;
}

.today-weather-card::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 183, 197, 0.2) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
}

/* お天気アイコンのスタイリングとアニメーション */
.weather-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.weather-icon-huge {
  font-size: 6.5rem;
  line-height: 1;
  filter: drop-shadow(0 10px 20px rgba(255, 142, 158, 0.25));
  user-select: none;
}

/* アニメーションクラス */
.anim-float {
  animation: floatIcon 4s infinite ease-in-out;
}
.anim-spin {
  animation: rotateIcon 25s infinite linear;
}
.anim-pulse {
  animation: pulseIcon 3s infinite ease-in-out;
}

@keyframes floatIcon {
  0% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
  100% { transform: translateY(0); }
}

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

@keyframes pulseIcon {
  0% { transform: scale(1); }
  50% { transform: scale(1.06); }
  100% { transform: scale(1); }
}

.weather-label {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.6);
  padding: 6px 18px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary-dark);
  box-shadow: 0 4px 15px rgba(255, 142, 158, 0.1);
}

/* 好調度サークルプログレスバー */
.condition-circle-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.circle-svg {
  width: 170px;
  height: 170px;
  transform: rotate(-90deg);
}

.circle-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.4);
  stroke-width: 14;
}

.circle-progress {
  fill: none;
  stroke: url(#pinkGradient);
  stroke-width: 14;
  stroke-linecap: round;
  stroke-dasharray: 471.2; /* 2 * PI * 75 */
  stroke-dashoffset: 471.2;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 4px 10px rgba(255, 142, 158, 0.3));
}

.circle-percentage {
  position: absolute;
  top: 43%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
}

.percent-num {
  font-family: var(--font-en);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-text-main);
  line-height: 1;
}

.percent-symbol {
  font-size: 1.2rem;
  font-weight: 800;
  margin-left: 2px;
}

.percent-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-sub);
  margin-top: 2px;
  letter-spacing: 0.05em;
}

/* メッセージ ＆ スタンプカード */
.message-stamp-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 35px;
  position: relative;
  overflow: hidden;
}

.card-header-badge {
  align-self: flex-start;
  background: rgba(255, 142, 158, 0.12);
  color: var(--color-primary-dark);
  border: 1px solid rgba(255, 142, 158, 0.2);
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
}

.card-header-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary-dark);
  animation: pulseIcon 1.5s infinite;
}

.message-content {
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.8;
  color: var(--color-text-main);
  position: relative;
  z-index: 2;
  margin-bottom: 25px;
  word-break: break-all;
}

.message-content::before {
  content: '“';
  position: absolute;
  top: -25px;
  left: -15px;
  font-size: 4rem;
  font-family: serif;
  color: rgba(255, 142, 158, 0.15);
  line-height: 1;
}

/* スタンプ表示 */
.stamp-wrapper {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-top: 15px;
}

.stamp-box {
  background: linear-gradient(135deg, #FFF0F2 0%, #FFE4E8 100%);
  border: 2.5px dashed rgba(255, 142, 158, 0.45);
  padding: 16px 16px 12px 16px;
  border-radius: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transform: rotate(-4deg);
  box-shadow: 0 8px 25px rgba(255, 142, 158, 0.12);
  animation: stampPop 0.6s var(--transition-bounce) both;
  min-width: 130px;
  max-width: 150px;
}

@keyframes stampPop {
  0% { transform: scale(0) rotate(-15deg); opacity: 0; }
  100% { transform: scale(1) rotate(-4deg); opacity: 1; }
}

.stamp-emoji {
  font-size: 5rem;
  line-height: 1;
  filter: drop-shadow(0 4px 10px rgba(255, 142, 158, 0.25));
}

.stamp-image {
  width: 110px;
  height: 110px;
  object-fit: contain;
  vertical-align: middle;
  display: inline-block;
  flex-shrink: 0;
  filter: drop-shadow(0 4px 12px rgba(255, 142, 158, 0.25));
}

.mini-stamp-image {
  width: 56px;
  height: 56px;
  object-fit: contain;
  vertical-align: middle;
  display: inline-block;
  flex-shrink: 0;
  filter: drop-shadow(0 3px 8px rgba(255, 142, 158, 0.2));
}

.stamp-text {
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--color-primary-dark);
  letter-spacing: 0.02em;
  text-align: center;
}

/* 7. 今週の天気 (グラフ) */
.weekly-section {
  animation: fadeInUp 1s 0.2s var(--transition-smooth) both;
}

.weekly-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 30px;
}

.chart-container {
  position: relative;
  width: 100%;
  height: 280px;
}

/* ミニ週カードリスト */
.weekly-cards-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.weekly-mini-card {
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 18px;
  padding: 15px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
}

.weekly-mini-card:hover {
  background: var(--color-text-white);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(255, 183, 197, 0.25);
}

.mini-day {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-text-sub);
}

.mini-day.is-today {
  color: var(--color-primary-dark);
  background: rgba(255, 142, 158, 0.15);
  padding: 2px 8px;
  border-radius: 100px;
}

.mini-stamp {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  margin-top: 5px;
}

.mini-stamp .stamp-emoji {
  font-size: 2.5rem;
  line-height: 1;
  filter: drop-shadow(0 3px 6px rgba(255, 142, 158, 0.2));
  margin-bottom: 2px;
}

.mini-icon {
  font-size: 2.2rem;
  line-height: 1;
  margin: 2px 0;
  filter: drop-shadow(0 4px 8px rgba(255, 142, 158, 0.15));
}

.mini-percent {
  font-family: var(--font-en);
  font-size: 1.1rem;
  font-weight: 800;
}

.mini-stamp {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.7);
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid rgba(255, 142, 158, 0.15);
  color: var(--color-text-sub);
  white-space: nowrap;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 8. 今月の天気 (カレンダー) */
.monthly-section {
  animation: fadeInUp 1s 0.4s var(--transition-smooth) both;
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
}

.calendar-title-group {
  display: flex;
  flex-direction: column;
}

.calendar-month-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text-main);
}

.calendar-month-sub {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  letter-spacing: 0.05em;
}

.calendar-legend {
  display: flex;
  gap: 15px;
  font-size: 0.8rem;
  color: var(--color-text-sub);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

.legend-color {
  width: 10px;
  height: 10px;
  border-radius: 3px;
}

.legend-color.good { background: linear-gradient(135deg, #FFB7C5 0%, #FF8E9E 100%); }
.legend-color.normal { background: #E6C2C9; }
.legend-color.low { background: #D1B3BA; }

/* カレンダーグリッド */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 10px;
}

.calendar-weekday {
  text-align: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-text-sub);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 142, 158, 0.2);
}

.calendar-weekday:nth-child(7) { color: #8AD4FF; } /* 土曜 */
.calendar-weekday:nth-child(1) { color: #FF8E9E; } /* 日曜 */

.calendar-day {
  aspect-ratio: 1 / 1;
  background: rgba(255, 255, 255, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 16px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.calendar-day:hover {
  background: var(--color-text-white);
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(255, 183, 197, 0.25);
  z-index: 10;
}

.calendar-day.empty {
  opacity: 0.15;
  cursor: default;
  pointer-events: none;
}

.day-number {
  font-family: var(--font-en);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-sub);
}

.calendar-day.is-today-cal {
  border: 2px solid var(--color-primary);
  background: rgba(255, 240, 242, 0.6);
}

.calendar-day.is-today-cal .day-number {
  color: var(--color-primary-dark);
  font-weight: 800;
}

.day-weather-mini {
  font-size: 1.8rem;
  line-height: 1;
  align-self: center;
  margin-bottom: 4px;
  filter: drop-shadow(0 2px 4px rgba(255, 142, 158, 0.15));
  transition: var(--transition-bounce);
}

.calendar-day:hover .day-weather-mini {
  transform: scale(1.2);
}

.day-condition-bar {
  height: 4px;
  width: 100%;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.day-condition-progress {
  height: 100%;
  border-radius: 10px;
  background: var(--color-primary-light);
  width: 0;
  transition: width 1s ease-in-out;
}

/* カレンダー詳細ポップアップ (ツールチップ) */
.day-tooltip {
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 220px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 142, 158, 0.3);
  border-radius: 16px;
  padding: 15px;
  box-shadow: 0 15px 30px rgba(74, 46, 53, 0.15);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: var(--transition-bounce);
}

.calendar-day:hover .day-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.tooltip-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  border-bottom: 1px dashed rgba(255, 142, 158, 0.2);
  padding-bottom: 6px;
}

.tooltip-date {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-sub);
}

.tooltip-percent {
  font-family: var(--font-en);
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--color-primary-dark);
}

.tooltip-stamp {
  align-self: flex-start;
  font-size: 0.7rem;
  background: rgba(255, 142, 158, 0.1);
  color: var(--color-primary-dark);
  padding: 2px 6px;
  border-radius: 4px;
  margin-bottom: 8px;
  display: inline-block;
}

.tooltip-msg {
  font-size: 0.8rem;
  line-height: 1.5;
  color: var(--color-text-main);
  word-break: break-all;
}

/* 9. モーダルウィンドウ (共通) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(74, 46, 53, 0.35);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.modal-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 32px;
  padding: 40px;
  width: 90%;
  max-width: 480px;
  box-shadow: 0 30px 60px rgba(74, 46, 53, 0.2);
  transform: scale(0.9) translateY(20px);
  transition: var(--transition-bounce);
}

.modal-overlay.is-active .modal-content {
  transform: scale(1) translateY(0);
}

.modal-header {
  text-align: center;
  margin-bottom: 25px;
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text-main);
}

.modal-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  margin-top: 5px;
}

/* ログインモーダル */
.input-group {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-sub);
}

.text-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid rgba(255, 142, 158, 0.3);
  padding: 14px 20px;
  border-radius: 16px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text-main);
  outline: none;
  transition: var(--transition-smooth);
}

.text-input:focus {
  background: var(--color-text-white);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(255, 142, 158, 0.15);
}

.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-white);
  border: none;
  padding: 14px;
  border-radius: 16px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(255, 142, 158, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 142, 158, 0.4);
}

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

/* エラー表示 */
.error-msg {
  color: #E06A7B;
  font-size: 0.8rem;
  font-weight: 700;
  margin-top: 5px;
  display: none;
}

/* ==========================================================================
   🔑 管理者専用全画面ビュー (ログイン & 登録フォーム)
   ========================================================================== */
.admin-full-page-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-bg-start) 0%, var(--color-bg-mid) 50%, var(--color-bg-end) 100%);
  background-attachment: fixed;
  z-index: 1000;
  overflow-y: auto;
  display: none; /* 初期状態は非表示 */
  padding: 20px 12px 60px 12px;
  animation: fadeInAdmin 0.3s ease-out;
}

.admin-full-page-overlay.is-active {
  display: block;
}

.admin-full-page-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 32px;
  padding: 40px 30px;
  width: 100%;
  max-width: 480px;
  margin: 40px auto;
  box-shadow: var(--glass-shadow-hover);
  position: relative;
  animation: fadeInUpAdmin 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes fadeInAdmin {
  0% { opacity: 0; }
  100% { opacity: 1; }
}

@keyframes fadeInUpAdmin {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* スライダー */
.slider-container {
  display: flex;
  align-items: center;
  gap: 15px;
}

.range-slider {
  flex-grow: 1;
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 10px;
  background: rgba(255, 142, 158, 0.2);
  outline: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-text-white);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(255, 142, 158, 0.4);
  transition: var(--transition-bounce);
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-val {
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-primary-dark);
  min-width: 50px;
  text-align: right;
}

/* アイコン＆スタンプグリッド */
.options-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.option-btn {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 142, 158, 0.25);
  border-radius: 12px;
  aspect-ratio: 1 / 1;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-bounce);
}

.option-btn:hover {
  background: var(--color-text-white);
  transform: scale(1.1);
  border-color: var(--color-primary);
}

.option-btn.is-selected {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  border-color: var(--color-primary-dark);
  color: var(--color-text-white);
  box-shadow: 0 4px 12px rgba(255, 142, 158, 0.3);
  transform: scale(1.05);
}

.stamps-grid {
  grid-template-columns: repeat(3, 1fr);
}

.stamp-btn {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 142, 158, 0.25);
  border-radius: 16px;
  padding: 15px 10px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: var(--transition-bounce);
}

.stamp-btn:hover {
  background: var(--color-text-white);
  transform: scale(1.05);
}

.stamp-btn .stamp-btn-emoji {
  font-size: 3rem;
  line-height: 1;
}

.stamp-btn .stamp-btn-image {
  width: 72px;
  height: 72px;
  object-fit: contain;
  filter: drop-shadow(0 3px 8px rgba(255, 142, 158, 0.15));
}

.stamp-btn.is-selected {
  background: linear-gradient(135deg, #FFF0F2 0%, #FFE4E8 100%);
  border: 2px solid var(--color-primary);
  color: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(255, 183, 197, 0.2);
}

.modal-close-btn {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-sub);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.modal-close-btn:hover {
  color: var(--color-primary-dark);
  transform: rotate(90deg);
}

/* 10. フッター */
footer {
  text-align: center;
  margin-top: 20px;
  color: var(--color-text-sub);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  animation: fadeInUp 1s 0.6s var(--transition-smooth) both;
}

/* 11. ローディングアニメーション */
.loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-bg-start) 0%, var(--color-bg-mid) 100%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 0.5s ease;
}

.loader-sakura {
  font-size: 3.5rem;
  animation: rotateIcon 4s infinite linear, floatIcon 2s infinite ease-in-out;
}

.loader-text {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  letter-spacing: 0.1em;
}

/* 12. 共通アニメーション定義 */
@keyframes fadeInDown {
  0% { opacity: 0; transform: translateY(-20px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(25px); }
  100% { opacity: 1; transform: translateY(0); }
}


/* ==========================================================================
   📱 レスポンシブデザイン (メディアクエリ)
   ========================================================================== */

@media (max-width: 900px) {
  .today-section {
    grid-template-columns: 1fr;
  }
  
  .weekly-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 600px) {
  .app-container {
    padding: 20px 12px 60px 12px;
    gap: 25px;
  }
  
  h1 {
    font-size: 1.7rem;
  }
  
  .glass-card {
    padding: 20px;
  }
  
  .today-weather-card {
    flex-direction: column;
    gap: 30px;
    padding: 30px 20px;
  }
  
  .weekly-cards-list {
    grid-template-columns: repeat(2, 1fr);
  }

  /* カレンダーのヘッダーと凡例のスマホ最適化 (はみ出し防止) */
  .calendar-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .calendar-legend {
    flex-wrap: wrap;
    gap: 8px 12px;
    width: 100%;
  }

  /* カレンダー用のカードパディングを狭めてセル幅を最大化 */
  .monthly-section .glass-card {
    padding: 12px;
  }
  
  .calendar-grid {
    gap: 5px;
  }
  
  .calendar-day {
    aspect-ratio: auto; /* スマホでは1:1のアスペクト比を無効化し、はみ出しを防ぐ */
    min-height: 50px;
    padding: 4px 2px;
    border-radius: 10px;
  }
  
  .day-number {
    font-size: 0.7rem;
  }
  
  .day-weather-mini {
    font-size: 1.1rem;
    margin-bottom: 2px;
  }

  .day-condition-bar {
    height: 3px;
  }
  
  /* スマホではツールチップを完全に無効化 (クリックによる詳細モーダル起動に変更) */
  .day-tooltip {
    display: none !important;
  }

  /* グラフのスマホ最適化 */
  .chart-container {
    height: 200px;
  }
  
  .options-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .stamps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}