@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Space+Grotesk:wght@400;500;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --momiji: #e8453c;
  --momiji-dark: #c0312a;
  --momiji-soft: rgba(232,69,60,0.1);
  --momiji-glow: rgba(232,69,60,0.25);
  --bg: #0d0d0f;
  --surface: #17171b;
  --surface2: #1f1f25;
  --surface3: #26262e;
  --border: rgba(255,255,255,0.07);
  --text: #f0f0f0;
  --text-muted: #888;
  --text-dim: #555;
  --radius: 16px;
  --radius-sm: 10px;
}

[data-theme="light"] {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --surface2: #f0f0f2;
  --surface3: #e5e5ea;
  --border: rgba(0,0,0,0.08);
  --text: #1a1a1a;
  --text-muted: #555;
  --text-dim: #999;
}

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

body {
  font-family: 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 60px 20px 80px;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 10%, rgba(232,69,60,0.06) 0%, transparent 60%);
  pointer-events: none; z-index: 0;
}

.container { max-width: 860px; margin: 0 auto; position: relative; z-index: 1; }

.nav-header { margin-bottom: 28px; }
.back-link { color: var(--text-dim); text-decoration: none; font-size: 13px; font-weight: 500; transition: color 0.2s; }
.back-link:hover { color: var(--momiji); }

.page-title-wrap { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
h1 { font-family: 'Space Grotesk', sans-serif; font-size: 24px; font-weight: 700; letter-spacing: -0.5px; }
.title-badge {
  background: var(--momiji-soft); color: var(--momiji);
  font-size: 11px; font-weight: 700; padding: 3px 10px;
  border-radius: 20px; border: 1px solid rgba(232,69,60,0.3);
  letter-spacing: 0.5px; text-transform: uppercase;
}

/* FORM */
.form-row { display: flex; gap: 10px; margin-bottom: 12px; }

.title-input {
  flex: 1; padding: 11px 16px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: 'Noto Sans JP', sans-serif; font-size: 14px; outline: none;
  transition: border-color 0.2s;
}
.title-input:focus { border-color: var(--momiji); }
.title-input::placeholder { color: var(--text-dim); }

.lang-select {
  padding: 11px 14px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text);
  font-family: 'Noto Sans JP', sans-serif; font-size: 13px;
  outline: none; cursor: pointer; transition: border-color 0.2s;
}
.lang-select:focus { border-color: var(--momiji); }

#monaco-container {
  width: 100%;
  height: 420px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.2s;
}

#monaco-container:focus-within {
  border-color: rgba(232,69,60,0.4);
  box-shadow: 0 0 0 3px var(--momiji-soft);
}

.file-btn {
  padding: 11px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
}
.file-btn:hover {
  border-color: var(--momiji);
  color: var(--momiji);
  background: var(--momiji-soft);
}

.editor-hint {
  font-size: 12px;
  color: var(--text-dim);
}

.form-footer { display: flex; justify-content: flex-end; margin-top: 12px; }

.send-btn {
  padding: 10px 28px; background: var(--momiji); color: white;
  border: none; border-radius: 20px; font-size: 14px; font-weight: 700;
  cursor: pointer; font-family: 'Noto Sans JP', sans-serif;
  transition: all 0.2s; box-shadow: 0 4px 14px var(--momiji-glow);
}
.send-btn:hover { background: var(--momiji-dark); transform: translateY(-1px); }
.send-btn:disabled { opacity: 0.6; cursor: default; transform: none; }

/* LIST */
.section-title {
  font-size: 12px; font-weight: 700; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 1px;
  display: flex; align-items: center; gap: 10px;
  margin: 32px 0 14px;
}
.section-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.paste-card {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px;
  text-decoration: none; color: inherit;
  transition: all 0.2s; margin-bottom: 8px;
}
.paste-card:hover { border-color: rgba(232,69,60,0.25); background: var(--surface2); }

.paste-card-left { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.paste-card-title { font-weight: 700; font-size: 15px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.paste-card-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text-dim); flex-wrap: wrap; }
.paste-card-meta strong { color: var(--text-muted); }
.paste-card-arrow { color: var(--text-dim); font-size: 18px; flex-shrink: 0; }

/* VIEW PAGE */
.paste-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; margin-bottom: 16px; flex-wrap: wrap;
}
.paste-header-left { display: flex; flex-direction: column; gap: 8px; }
.paste-title { font-family: 'Space Grotesk', sans-serif; font-size: 22px; font-weight: 700; color: var(--text); }
.paste-meta-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 13px; color: var(--text-dim); }
.paste-meta-row strong { color: var(--text-muted); }
.paste-actions { display: flex; gap: 8px; flex-shrink: 0; }

.lang-badge {
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--momiji); font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 20px; letter-spacing: 0.3px;
}

.code-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
}

.code-wrap pre {
  margin: 0; padding: 0;
  background: transparent !important;
}

.code-wrap pre code {
  font-family: 'JetBrains Mono', monospace !important;
  font-size: 13px !important;
  line-height: 1.7 !important;
  padding: 20px 24px !important;
  background: transparent !important;
  border-radius: var(--radius) !important;
}

.copy-btn {
  padding: 8px 16px; background: var(--surface2);
  border: 1px solid var(--border); border-radius: 8px;
  color: var(--text-muted); font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: 'Noto Sans JP', sans-serif; transition: all 0.2s;
}
.copy-btn:hover { border-color: var(--momiji); color: var(--momiji); background: var(--momiji-soft); }

.danger-btn-sm {
  padding: 8px 16px; background: transparent;
  border: 1px solid rgba(232,69,60,0.3); border-radius: 8px;
  color: var(--momiji); font-size: 13px; font-weight: 600;
  cursor: pointer; font-family: 'Noto Sans JP', sans-serif; transition: all 0.2s;
}
.danger-btn-sm:hover { background: var(--momiji); color: white; }

/* ログインアラート */
.login-alert-box {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; text-align: center; margin-bottom: 24px;
}
.login-alert-box p { color: var(--text-muted); margin-bottom: 14px; font-size: 14px; }
.login-redirect-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--momiji); color: white; text-decoration: none;
  padding: 10px 24px; border-radius: 20px; font-size: 14px; font-weight: 700; transition: all 0.2s;
}
.login-redirect-btn:hover { background: var(--momiji-dark); transform: translateY(-1px); }

/* 空状態 */
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-dim); }
.empty-state .emoji { font-size: 36px; margin-bottom: 10px; opacity: 0.5; }
.empty-state p { font-size: 14px; }

/* NAV */
.menu-icon {
  position: fixed; top: 20px; left: 20px;
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 50%; font-size: 18px; cursor: pointer; z-index: 1000;
  color: var(--text-muted); transition: all 0.2s;
}
.menu-icon:hover { border-color: var(--momiji); color: var(--text); }
.nav-menu {
  position: fixed; top: 0; left: -270px; width: 260px; height: 100%;
  background: var(--surface); border-right: 1px solid var(--border);
  padding-top: 80px; transition: left 0.3s cubic-bezier(.4,0,.2,1); z-index: 999;
}
.nav-menu.active { left: 0; }
.nav-menu a {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 24px; text-decoration: none;
  color: var(--text-muted); font-weight: 500; font-size: 14px;
  border-left: 3px solid transparent; transition: all 0.2s;
}
.nav-menu a:hover { background: var(--surface2); color: var(--text); border-left-color: var(--momiji); }
.nav-account {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 24px 14px 21px; color: var(--text);
  font-weight: 700; font-size: 14px;
  border-left: 3px solid var(--momiji); background: var(--surface2);
}
.nav-avatar {
  width: 26px; height: 26px; min-width: 26px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: white;
}
.nav-settings-link {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 24px; text-decoration: none;
  color: var(--text-muted); font-weight: 500; font-size: 14px;
  border-left: 3px solid transparent; transition: all 0.2s;
}
.nav-settings-link:hover { background: var(--surface2); color: var(--text); border-left-color: var(--momiji); }

::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface3); border-radius: 4px; }