@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&family=Source+Code+Pro:wght@400;600&display=swap');

:root {
  --admin-bg: #1c1f26;
  --admin-bg-secondary: #252930;
  --admin-bg-card: #2d3140;
  --admin-border: #3a3f50;
  --admin-text: #dde1ec;
  --admin-text-muted: #7a82a0;
  --admin-accent: #4a7cc7;
  --admin-accent-hover: #5d8fd8;
  --admin-success: #2ecc71;
  --admin-warning: #f39c12;
  --admin-danger: #e74c3c;
  --admin-tag-public: #1a4a2e;
  --admin-tag-private: #4a2020;
  --font: 'Noto Sans JP', sans-serif;
  --mono: 'Source Code Pro', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--admin-bg);
  color: var(--admin-text);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
}

/* ===== HEADER ===== */
#admin-header {
  background: #13161d;
  border-bottom: 1px solid var(--admin-border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.admin-logo {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--admin-accent);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.admin-logo span {
  color: var(--admin-text-muted);
  font-weight: 400;
}

.admin-nav {
  display: flex;
  gap: 0.25rem;
}

.admin-nav a {
  color: var(--admin-text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  padding: 0.35rem 0.75rem;
  border-radius: 3px;
  transition: all 0.2s;
}

.admin-nav a:hover {
  background: var(--admin-bg-card);
  color: var(--admin-text);
}

/* ===== LOGIN PAGE ===== */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.login-box {
  background: var(--admin-bg-secondary);
  border: 1px solid var(--admin-border);
  border-radius: 6px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
}

.login-box h1 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--admin-text);
  margin-bottom: 0.25rem;
}

.login-subtitle {
  font-size: 0.8rem;
  color: var(--admin-text-muted);
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--admin-text-muted);
  margin-bottom: 0.35rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.form-group input {
  width: 100%;
  background: var(--admin-bg);
  border: 1px solid var(--admin-border);
  border-radius: 4px;
  color: var(--admin-text);
  padding: 0.6rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus {
  border-color: var(--admin-accent);
}

.login-btn {
  width: 100%;
  background: var(--admin-accent);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 0.7rem;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 0.5rem;
}

.login-btn:hover {
  background: var(--admin-accent-hover);
}

.error-msg {
  background: rgba(231, 76, 60, 0.15);
  border: 1px solid rgba(231, 76, 60, 0.4);
  color: #e74c3c;
  border-radius: 4px;
  padding: 0.6rem 0.75rem;
  font-size: 0.85rem;
  margin-top: 1rem;
  display: none;
}

.error-msg.visible {
  display: block;
}

/* ===== ADMIN MAIN ===== */
.admin-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.admin-page-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--admin-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--admin-border);
}

.admin-stats {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--admin-bg-card);
  border: 1px solid var(--admin-border);
  border-radius: 4px;
  padding: 1rem 1.5rem;
  min-width: 120px;
}

.stat-card .stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  font-family: var(--mono);
  color: var(--admin-accent);
}

.stat-card .stat-label {
  font-size: 0.75rem;
  color: var(--admin-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.2rem;
}

/* ===== ARTICLE TABLE ===== */
.article-table-wrap {
  overflow-x: auto;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.article-table th {
  background: #13161d;
  color: var(--admin-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--admin-border);
  white-space: nowrap;
}

.article-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid rgba(58, 63, 80, 0.5);
  vertical-align: top;
}

.article-table tr:hover td {
  background: rgba(255,255,255,0.02);
}

.article-table tr.private td {
  opacity: 0.7;
}

.badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.badge-public {
  background: rgba(46, 204, 113, 0.15);
  color: #2ecc71;
  border: 1px solid rgba(46, 204, 113, 0.3);
}

.badge-private {
  background: rgba(231, 76, 60, 0.15);
  color: #e74c3c;
  border: 1px solid rgba(231, 76, 60, 0.3);
}

.badge-rewritten {
  background: rgba(243, 156, 18, 0.15);
  color: #f39c12;
  border: 1px solid rgba(243, 156, 18, 0.3);
}

.badge-cursed {
  background: rgba(128, 0, 128, 0.15);
  color: #c084fc;
  border: 1px solid rgba(128, 0, 128, 0.3);
}

.mono-text {
  font-family: var(--mono);
  font-size: 0.82rem;
}

/* ===== ORIGINAL CONTENT PANEL ===== */
.btn-show-original {
  background: transparent;
  border: 1px solid var(--admin-border);
  color: var(--admin-text-muted);
  padding: 0.25rem 0.6rem;
  font-size: 0.75rem;
  font-family: var(--font);
  border-radius: 3px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-show-original:hover {
  border-color: var(--admin-accent);
  color: var(--admin-accent);
}

.original-panel {
  display: none;
  background: var(--admin-bg);
  border: 1px solid var(--admin-border);
  border-radius: 4px;
  padding: 1.25rem;
  margin-top: 1rem;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--admin-text);
}

.original-panel.visible {
  display: block;
}

.original-panel-header {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--admin-text-muted);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--admin-border);
}

.original-panel p {
  margin-bottom: 0.75em;
}

/* ===== ARTICLE DETAIL VIEW ===== */
.detail-panel {
  background: var(--admin-bg-secondary);
  border: 1px solid var(--admin-border);
  border-radius: 6px;
  padding: 2rem;
  margin-top: 2rem;
}

.detail-panel-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--admin-border);
  color: var(--admin-text);
}

/* ===== NO.499 SPECIAL ===== */
.special-499 {
  background: linear-gradient(135deg, #1a0a2e, #0d1a2e);
  border: 1px solid #4a3070;
  border-radius: 6px;
  padding: 3rem 2rem;
  margin: 2rem 0;
  text-align: center;
}

.special-499 .article-no {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: #7a5aac;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.special-499 .article-body-499 {
  max-width: 520px;
  margin: 0 auto;
  font-size: 1.05rem;
  line-height: 2.2;
  color: #c8b8e8;
  text-align: left;
}

.special-499 .article-body-499 p {
  margin-bottom: 1.2em;
}

.special-499 .article-body-499 .highlight {
  color: #e8d8ff;
  font-weight: 700;
}

.special-499 .article-date {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: #5a4a7a;
  margin-top: 2rem;
}

/* ===== LOGOUT LINK ===== */
.logout-link {
  color: var(--admin-text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  cursor: pointer;
}

.logout-link:hover {
  color: var(--admin-danger);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .admin-main {
    padding: 1rem;
  }

  .article-table {
    font-size: 0.78rem;
  }

  .stat-card {
    min-width: 80px;
    padding: 0.75rem 1rem;
  }
}