/* ===================================
   ideal - スタイルシート
   ================================== */

/* カスタムプロパティ（テーマ） */
:root {
  --color-bg: #0f0f23;
  --color-bg-secondary: #1a1a2e;
  --color-surface: rgba(255, 255, 255, 0.05);
  --color-surface-hover: rgba(255, 255, 255, 0.1);
  --color-border: rgba(255, 255, 255, 0.1);
  --color-text: #e4e4e7;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-danger: #ef4444;
  --color-danger-hover: #f87171;
  --color-success: #22c55e;

  --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
}

/* アプリコンテナ */
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===================================
   ヘッダー
   ================================== */
.header {
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  font-size: 1.75rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-primary), #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.search-box {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--color-text-muted);
}

.search-input {
  width: 100%;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 0.9375rem;
  transition: var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-surface-hover);
}

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

/* ユーザーメニュー */
.user-menu {
  display: flex;
  align-items: center;
}

.login-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.login-btn:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
}

.login-btn svg {
  width: 18px;
  height: 18px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-info.hidden {
  display: none;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
}

.user-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hidden {
  display: none !important;
}

/* ===================================
   メイン
   ================================== */
.main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* グラスカード */
.glass-card {
  background: var(--color-surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ===================================
   新規メモフォーム
   ================================== */
.new-memo {
  margin-bottom: 2.5rem;
}

.memo-form {
  padding: 1.5rem;
}

.memo-title-input,
.memo-content-input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--color-text);
  font-family: var(--font-family);
  resize: none;
}

.memo-title-input {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.75rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.memo-title-input:focus,
.memo-content-input:focus {
  outline: none;
}

.memo-title-input::placeholder,
.memo-content-input::placeholder {
  color: var(--color-text-muted);
}

.memo-content-input {
  font-size: 1rem;
  min-height: 100px;
  line-height: 1.7;
}

.memo-form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

/* ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background: var(--color-surface-hover);
}

.btn-danger {
  background: transparent;
  color: var(--color-danger);
}

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

.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-icon:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* ===================================
   メモ一覧
   ================================== */
.memo-count {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.memo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

/* メモカード */
.memo-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: var(--transition-normal);
  animation: fadeIn 0.3s ease;
}

.memo-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.memo-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.memo-card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  word-break: break-word;
}

.memo-card-actions {
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  transition: var(--transition-fast);
}

.memo-card:hover .memo-card-actions {
  opacity: 1;
}

.memo-card-content {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  word-break: break-word;
  white-space: pre-wrap;
  position: relative;
}

.memo-card-content.collapsed {
  max-height: 100px;
  overflow: hidden;
}

.memo-card-content.collapsed::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--color-surface));
  pointer-events: none;
}

.memo-card-content.expanded {
  max-height: none;
}

.expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.5rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-primary);
  background: transparent;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.expand-btn:hover {
  background: rgba(99, 102, 241, 0.1);
}

.expand-btn svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.expand-btn.expanded svg {
  transform: rotate(180deg);
}

.memo-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--color-border);
}

.memo-card-date {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* 空の状態 */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--color-text-muted);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state p {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.empty-state.hidden {
  display: none;
}

/* ===================================
   モーダル
   ================================== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  width: 100%;
  max-width: 500px;
  padding: 1.5rem;
  transform: scale(0.95);
  transition: var(--transition-normal);
}

.modal.active .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

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

.modal-body .memo-content-input {
  min-height: 150px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* ===================================
   フッター
   ================================== */
.footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  border-top: 1px solid var(--color-border);
}

/* ===================================
   レスポンシブ
   ================================== */
@media (max-width: 640px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  .search-box {
    max-width: none;
  }

  .memo-grid {
    grid-template-columns: 1fr;
  }

  .main {
    padding: 1.5rem 1rem;
  }
}