/* ===== Auth screen ===== */
.auth-screen {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-gray);
  padding: 40px 20px;
}
.auth-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 40px 36px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.09);
  text-align: center;
}
.auth-logo { font-size: 2.4rem; margin-bottom: 12px; }
.auth-card h2 { font-size: 1.3rem; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.auth-sub { font-size: 0.82rem; color: var(--text-light); margin-bottom: 24px; }
.auth-note { font-size: 0.8rem; color: var(--text-light); margin-top: 20px; }
.auth-note a { color: var(--primary); }

/* ===== Forms ===== */
.form-group { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; text-align: left; }
.form-group label { font-size: 0.82rem; font-weight: 600; color: var(--text); }
.form-group input,
.form-group select,
.form-group textarea {
  border: 1.5px solid var(--border);
  border-radius: 7px;
  padding: 9px 12px;
  font-size: 0.92rem;
  font-family: inherit;
  transition: border-color 0.15s;
  background: #fff;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,92,138,0.1);
}
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 140px; }

.btn-full { width: 100%; justify-content: center; text-align: center; }
.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  background: #fff;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn-secondary:hover { background: var(--primary); color: #fff; }
.btn-logout {
  padding: 6px 16px;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 6px;
  font-size: 0.83rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.btn-logout:hover { background: rgba(255,255,255,0.25); }

/* ===== Alerts ===== */
.alert {
  padding: 10px 14px;
  border-radius: 7px;
  font-size: 0.88rem;
  margin-bottom: 14px;
}
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.hidden { display: none !important; }

/* ===== Dashboard ===== */
.admin-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 20px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.admin-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}
.admin-card-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}

/* ===== File drop ===== */
.file-drop {
  position: relative;
  border: 2px dashed var(--border);
  border-radius: 9px;
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: var(--bg-gray);
}
.file-drop:hover, .file-drop.drag-over { border-color: var(--primary); background: #eaf2fb; }
.file-drop input[type=file] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}
.file-drop-icon { font-size: 2rem; display: block; margin-bottom: 6px; }
.file-drop-text p { font-size: 0.88rem; color: var(--text-light); margin: 0; }
.file-drop-note { font-size: 0.78rem !important; margin-top: 4px !important; }
.file-selected .file-drop-text p:first-child { color: var(--primary); font-weight: 600; }

/* ===== Admin file table ===== */
.admin-file-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.admin-file-table th {
  background: var(--bg-gray);
  padding: 9px 12px;
  text-align: left;
  font-weight: 700;
  color: var(--text);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
.admin-file-table td { padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.admin-file-table tr:hover td { background: #f9fbff; }
.fname-cell { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cat-select {
  border: 1.5px solid var(--border);
  border-radius: 5px;
  padding: 4px 6px;
  font-size: 0.82rem;
  font-family: inherit;
  background: #fff;
  cursor: pointer;
  transition: border-color 0.15s;
}
.cat-select:focus { outline: none; border-color: var(--primary); }
.cat-select:disabled { opacity: 0.5; cursor: wait; }

.btn-delete {
  padding: 4px 12px;
  background: #fff;
  border: 1.5px solid #fca5a5;
  color: #b91c1c;
  border-radius: 5px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
}
.btn-delete:hover { background: #fef2f2; }

/* ===== Admin list ===== */
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; margin-bottom: 20px; }
.admin-table th { background: var(--bg-gray); padding: 8px 12px; text-align: left; font-weight: 700; border-bottom: 2px solid var(--border); }
.admin-table td { padding: 8px 12px; border-bottom: 1px solid var(--border); }

.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.sub-title { font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 14px; }

.loading-text { color: var(--text-light); font-size: 0.9rem; }

/* ===== PDF viewer (top page) ===== */
.pdf-tab-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.pdf-tab-btn {
  padding: 8px 22px;
  border: 2px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--text-light);
  transition: all 0.15s;
}
.pdf-tab-btn.active, .pdf-tab-btn:hover { border-color: var(--primary); color: var(--primary); background: #eaf2fb; }

.pdf-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 60px 0;
  color: var(--text-light);
}
.spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.pdf-empty {
  text-align: center;
  padding: 60px 0;
  color: var(--text-light);
  font-size: 0.95rem;
}

.pdf-viewer-wrap { display: flex; flex-direction: column; gap: 10px; }
.pdf-file-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  flex-wrap: wrap;
}
.pdf-cat-badge {
  background: var(--primary);
  color: #fff;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
}
.pdf-fname { font-weight: 600; color: var(--text); }
.pdf-date { color: var(--text-light); margin-left: auto; }
.pdf-date-label { font-size: .88rem; font-weight: 600; color: var(--primary); }

.pdf-iframe {
  width: 100%;
  height: 70vh;
  min-height: 480px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #f0f0f0;
}

/* スマホ：PDFを画面幅いっぱいに */
@media (max-width: 768px) {
  .pdf-section {
    padding-left: 0;
    padding-right: 0;
    overflow: hidden;
  }
  .pdf-section .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .pdf-viewer-wrap {
    gap: 8px;
  }
  .pdf-file-info {
    padding: 0 16px;
  }
  .pdf-actions {
    padding: 0 16px;
  }
  .pdf-tab-bar {
    padding: 0 16px;
  }

  /* コンテナを突き抜けて画面幅いっぱいに */
  .pdf-iframe {
    display: block;
    width: 100vw;
    height: 82vh;
    min-height: 0;
    margin-left: calc(50% - 50vw);
    border: none;
    border-radius: 0;
  }
}
.pdf-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-sm-outline {
  display: inline-block;
  padding: 5px 14px;
  background: #fff;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  transition: background 0.15s;
}
.btn-sm-outline:hover { background: #eaf2fb; text-decoration: none; }

/* ===== Inline edit row ===== */
.btn-sm {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 5px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--primary);
  background: #fff;
  color: var(--primary);
  margin-right: 4px;
  transition: background 0.15s;
}
.btn-sm:hover { background: #eaf2fb; }
.btn-save-result { border-color: #16a34a; color: #16a34a; }
.btn-save-result:hover { background: #f0fdf4; }
.btn-cancel-result { border-color: #888; color: #888; }
.btn-cancel-result:hover { background: #f5f5f5; }
.edit-row { background: #fffbe6; }
.edit-input {
  width: 100%;
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.85rem;
  font-family: inherit;
}