@import url('https://api.fontshare.com/v2/css?f[]=satoshi@700,600,500,400&display=swap');
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');

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

:root {
  --bg:            #0A0A0A;
  --s1:            #111111;
  --s2:            #161616;
  --s3:            #1E1E1E;
  --s4:            #242424;
  --border:        rgba(255, 255, 255, 0.055);
  --border-strong: rgba(255, 255, 255, 0.10);
  --accent:        #C8A45A;
  --accent-bg:     rgba(200, 164, 90, 0.08);
  --text:          #EDEBE6;
  --text-2:        #8A8884;
  --text-3:        #484644;
  --r:             3px;
  --ease:          cubic-bezier(0.16, 1, 0.3, 1);
  --t:             160ms;
}

html {
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 400;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100dvh;
  max-width: 620px;
  margin: 0 auto;
}

/* ============================================================
   セットアップ画面
============================================================ */
#setup-screen {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  padding: 64px 40px 48px 44px;
  gap: 24px;
  justify-content: center;
}

#setup-screen h1 {
  font-family: 'Satoshi', sans-serif;
  font-weight: 600;
  font-size: 20px;
  letter-spacing: -0.4px;
  color: var(--text);
}

#setup-screen p {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.65;
  max-width: 300px;
}

#setup-screen input {
  width: 100%;
  padding: 10px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-strong);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 13px;
  outline: none;
  transition: border-color var(--t);
}

#setup-screen input:focus {
  border-bottom-color: var(--accent);
}

#setup-screen input::placeholder { color: var(--text-3); }

.setup-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 8px;
}

.setup-label {
  font-size: 10px !important;
  font-weight: 500 !important;
  letter-spacing: 0.9px;
  text-transform: uppercase;
  color: var(--text-3) !important;
  text-align: left !important;
}

.setup-hint {
  font-size: 11px !important;
  color: var(--text-3) !important;
  text-align: left !important;
  line-height: 1.5;
}

.setup-hint a { color: var(--accent); text-decoration: none; }

/* ============================================================
   メインアプリ
============================================================ */
#app {
  display: none;
  flex-direction: column;
  min-height: 100dvh;
}

/* ============================================================
   ヘッダー
============================================================ */
header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid var(--border);
  padding: 0 20px 0 28px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

header h1 {
  font-family: 'Satoshi', sans-serif;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: -0.2px;
  color: var(--text);
  flex-shrink: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

/* ============================================================
   タブ
============================================================ */
.tabs {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 28px;
  border-bottom: 1px solid var(--border);
  background: var(--s1);
}

.tab {
  padding: 11px 16px 10px;
  font-family: 'Satoshi', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2px;
  color: var(--text-3);
  cursor: pointer;
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
  transition: color var(--t), border-color var(--t);
  user-select: none;
}

.tab.active {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.tab:hover:not(.active) { color: var(--text-2); }

/* ============================================================
   書くタブ
============================================================ */
#write-tab {
  padding: 32px 28px 32px 44px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}

.date-label {
  font-family: 'IBM Plex Sans', sans-serif;
  font-style: italic;
  font-size: 12px;
  font-weight: 300;
  color: var(--text-3);
  letter-spacing: 0.1px;
  margin-left: -4px;
}

textarea {
  width: 100%;
  min-height: 220px;
  padding: 0;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  font-weight: 300;
  line-height: 1.9;
  resize: none;
  outline: none;
  caret-color: var(--accent);
  transition: color var(--t);
}

textarea::placeholder {
  color: var(--text-3);
  font-style: italic;
}

.tag-input-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.tag-input-wrap label {
  font-family: 'Satoshi', sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.9px;
  text-transform: uppercase;
  color: var(--text-3);
}

.tag-input-wrap input {
  padding: 6px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 13px;
  outline: none;
  transition: border-color var(--t);
}

.tag-input-wrap input:focus { border-bottom-color: var(--accent); }
.tag-input-wrap input::placeholder { color: var(--text-3); }

/* ============================================================
   タグサジェスト
============================================================ */
.tag-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.tag-pill {
  font-family: 'Satoshi', sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: var(--text-3);
  background: var(--s2);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 2px;
  cursor: pointer;
  transition: color var(--t), border-color var(--t), background var(--t);
}

.tag-pill:hover {
  color: var(--accent);
  border-color: rgba(200, 164, 90, 0.3);
  background: var(--accent-bg);
}

/* ============================================================
   保存ボタン
============================================================ */
#save-btn { align-self: flex-start; }

/* ============================================================
   読むタブ
============================================================ */
#read-tab {
  display: none;
  flex-direction: column;
}

.search-wrap {
  padding: 12px 28px 12px 44px;
  border-bottom: 1px solid var(--border);
}

.search-wrap input {
  width: 100%;
  padding: 6px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 13px;
  outline: none;
  transition: border-color var(--t);
}

.search-wrap input:focus { border-bottom-color: var(--accent); }
.search-wrap input::placeholder {
  color: var(--text-3);
  font-style: italic;
}

/* ============================================================
   タグフィルター
============================================================ */
.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 10px 28px 10px 44px;
  border-bottom: 1px solid var(--border);
  min-height: 0;
}

.tag-filter-pill {
  font-family: 'Satoshi', sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: var(--text-3);
  background: transparent;
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--t);
}

.tag-filter-pill:hover { color: var(--text-2); border-color: var(--border-strong); }

.tag-filter-pill.active {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}

/* ============================================================
   メモリスト
============================================================ */
#memo-list {
  display: flex;
  flex-direction: column;
}

/* ============================================================
   メモカード（リスト形式）
============================================================ */
.memo-card {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0 20px;
  padding: 16px 28px 16px 28px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--t);
  position: relative;
}

.memo-card:first-child { border-top: none; }

.memo-card:hover { background: var(--s1); }

.memo-card.expanded { background: var(--s1); }

.memo-card.expanded .memo-full {
  display: block;
  animation: slide-in 0.18s var(--ease);
}

.memo-card.expanded .memo-preview { display: none; }

@keyframes slide-in {
  from { opacity: 0; transform: translateY(-3px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* 日付列 */
.memo-date {
  font-family: 'IBM Plex Sans', sans-serif;
  font-style: italic;
  font-size: 11px;
  font-weight: 300;
  color: var(--text-3);
  letter-spacing: 0.1px;
  padding-top: 2px;
  line-height: 1.4;
  flex-shrink: 0;
}

/* 本文列 */
.memo-body-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.memo-preview {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-2);
  line-height: 1.55;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.memo-full {
  display: none;
  font-size: 14px;
  font-weight: 300;
  line-height: 1.85;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
}

.memo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.tag-badge {
  font-family: 'Satoshi', sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: var(--accent);
  background: var(--accent-bg);
  padding: 1px 7px;
  border-radius: 2px;
}

/* ============================================================
   ボタン
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: 'Satoshi', sans-serif;
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.2px;
  border: none;
  border-radius: var(--r);
  cursor: pointer;
  transition: opacity var(--t), background var(--t), transform 80ms ease;
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
}

.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--accent);
  color: var(--bg);
  padding: 8px 18px;
  font-weight: 600;
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-3);
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 400;
  border-radius: 2px;
}

.btn-ghost:hover { color: var(--text-2); background: var(--s2); }

/* ============================================================
   同期ステータス
============================================================ */
.sync-status {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 10px;
  font-weight: 300;
  color: var(--text-3);
  letter-spacing: 0.2px;
  padding-right: 4px;
}

.sync-status.syncing { color: var(--accent); }

/* ============================================================
   トースト
============================================================ */
#toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(56px);
  background: var(--s3);
  border: 1px solid var(--border-strong);
  color: var(--text-2);
  padding: 8px 18px;
  border-radius: var(--r);
  font-size: 12px;
  letter-spacing: 0.1px;
  transition: transform 0.22s var(--ease);
  z-index: 200;
  white-space: nowrap;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

#toast.show { transform: translateX(-50%) translateY(0); }

/* ============================================================
   空 / ローディング
============================================================ */
.loading,
.empty-state {
  padding: 64px 44px;
  font-family: 'IBM Plex Sans', sans-serif;
  font-style: italic;
  font-size: 13px;
  font-weight: 300;
  color: var(--text-3);
}

/* ============================================================
   オーバーレイ
============================================================ */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.overlay-card {
  background: var(--s2);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 28px 28px 24px;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
}

.overlay-title {
  font-family: 'Satoshi', sans-serif;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.2px;
  color: var(--text);
}

.overlay-list {
  font-size: 13px;
  font-weight: 300;
  line-height: 1.85;
  color: var(--text-2);
  padding-left: 16px;
}

.code-block {
  background: var(--s1);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  padding: 12px 14px;
  font-family: 'IBM Plex Mono', 'Fira Code', monospace;
  font-size: 11px;
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre;
  color: var(--text-2);
}

.overlay-input {
  width: 100%;
  padding: 8px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-strong);
  color: var(--text);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 13px;
  outline: none;
  transition: border-color var(--t);
}

.overlay-input:focus { border-bottom-color: var(--accent); }
.overlay-input::placeholder { color: var(--text-3); }

.overlay-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.setup-hint a,
.overlay-card a {
  color: var(--accent);
  text-decoration: none;
}