:root {
  --bg-color: #f5f5f7;
  --card-bg: #ffffff;
  --text-color: #111111;
  --muted-text: #666666;
  --border-color: #dddddd;
  --accent: #0b74ff;
  --accent-soft: rgba(11, 116, 255, 0.12);
  --danger: #ff4b4b;
  --danger-soft: #ffe6e6;
  --input-bg: #fafafa;
}

:root[data-theme="dark"] {
  --bg-color: #111827;
  --card-bg: #1f2937;
  --text-color: #f9fafb;
  --muted-text: #9ca3af;
  --border-color: #374151;
  --accent: #60a5fa;
  --accent-soft: rgba(96, 165, 250, 0.2);
  --danger: #fb7185;
  --danger-soft: #451a1a;
  --input-bg: #111827;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
}

/* Topbar */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-left .app-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.9rem;
}

.lang-label {
  color: var(--muted-text);
}

#langSelect {
  padding: 4px 6px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--input-bg);
  color: var(--text-color);
}

.theme-toggle {
  border: none;
  background: transparent;
  font-size: 1.2rem;
  cursor: pointer;
  color: #000000;
}

:root[data-theme="dark"] .theme-toggle {
  color: #ffffff;
}

/* Layout */

.container {
  max-width: 900px;
  margin: 16px auto 32px;
  padding: 0 10px 10px;
}

.card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 14px 14px 16px;
  margin-bottom: 14px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(0, 0, 0, 0.02);
}

h2 {
  margin: 0 0 8px;
  font-size: 1rem;
}

/* Text / hint */

.hint {
  font-size: 0.85rem;
  color: var(--muted-text);
  margin: 4px 0 8px;
}

/* Zone tabs */

.zone-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.zone-tab {
  border-radius: 999px;
  border: 1px solid var(--border-color);
  padding: 4px 12px;
  background: var(--input-bg);
  font-size: 0.85rem;
  cursor: pointer;
}

.zone-tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.zone-tab.danger {
  color: var(--danger);
  border-color: var(--danger-soft);
  background: var(--danger-soft);
}

/* Options */

.options {
  margin-top: 6px;
}

.option-line {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  margin-bottom: 2px;
}

.option-line input[type="checkbox"] {
  margin: 0;
}

/* textarea, input */

textarea,
input[type="text"],
input[type="number"],
select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  padding: 6px 8px;
  font-size: 0.9rem;
  background: var(--input-bg);
  color: var(--text-color);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

textarea {
  min-height: 100px;
  resize: vertical;
  font-family: SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
}

textarea:focus,
input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
  background: #ffffff0d;
}

select {
  min-height: 32px;
}

:root[data-theme="dark"] select {
  background-color: #2c2f36;
  color: #ffffff;
  border-color: #555555;
}

:root[data-theme="dark"] select:hover {
  background-color: #363a42;
}

:root[data-theme="dark"] select:focus {
  border-color: #7a7a7a;
  box-shadow: 0 0 0 2px rgba(122, 122, 122, 0.35);
}

:root[data-theme="dark"] select option {
  background-color: #2c2f36;
  color: #ffffff;
}

/* Actions / buttons */

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

.btn-primary,
.btn-secondary {
  border-radius: 999px;
  border: none;
  padding: 6px 14px;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

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

/* Roles */

.role-box {
  border-radius: 12px;
  border: 1px solid var(--border-color);
  padding: 10px;
  margin-bottom: 8px;
  background: rgba(0, 0, 0, 0.01);
}

.role-title {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.role-port-hint {
  font-size: 0.8rem;
  color: var(--muted-text);
  margin-bottom: 6px;
}

.role-services {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.role-service {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  padding: 4px 6px;
  border-radius: 8px;
  transition: background 0.15s ease, border-color 0.15s ease;
  border: 1px solid transparent;
}

.role-service.active {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.role-service label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}

.role-service input[type="checkbox"] {
  margin: 0;
}

.role-service input[type="text"] {
  max-width: 140px;
}

/* Allowlist */

.allowlist-block {
  margin-top: 8px;
}

.allowlist-label {
  font-size: 0.85rem;
  font-weight: 500;
  display: block;
  margin-bottom: 4px;
}

.allowlist-textarea {
  min-height: 80px;
}

/* Feature blocks */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 10px;
}

.feature-block {
  border-radius: 12px;
  border: 1px solid var(--border-color);
  padding: 10px;
  background: rgba(0, 0, 0, 0.01);
}

.feature-header {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  flex-wrap: wrap;
}

.toggle-line {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.feature-header .toggle-line input[type="checkbox"] {
  margin: 0;
}

.feature-chip {
  font-size: 0.8rem;
  padding: 2px 10px;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  color: var(--text-color);
}

.feature-body {
  margin-top: 8px;
}

/* Status */

.status-text {
  font-size: 0.8rem;
  color: var(--muted-text);
}

.status-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 6px;
}

/* Custom ports */

.custom-port-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.custom-port-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.custom-port-row {
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 10px;
  background: rgba(0, 0, 0, 0.02);
}

.custom-port-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
  align-items: center;
}

.custom-port-ips {
  margin-top: 8px;
  min-height: 80px;
}

.custom-port-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  margin-top: 8px;
}

.remove-port-btn {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid var(--danger);
}

/* details / summary */

details summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
}

details[open] summary ~ * {
  animation: fadeIn 0.2s ease-in;
}

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

/* Responsive */

@media (max-width: 640px) {
  .actions {
    justify-content: flex-start;
  }
  .actions button {
    flex: 1 0 110px;
  }
  .role-service {
    flex-direction: column;
    align-items: flex-start;
  }
  .role-service input[type="text"] {
    max-width: 100%;
  }
}

/* ==== Dark Theme Zone Tab Fix ==== */

:root[data-theme="dark"] .zone-tab {
  background: #1f2937;
  color: var(--muted-text);
  border-color: #374151;
}

:root[data-theme="dark"] .zone-tab.active {
  background: #2563eb; /* 強めの青 */
  border-color: #2563eb;
  color: #ffffff;
}

:root[data-theme="dark"] .zone-tab.danger {
  background: #7f1d1d;
  color: #fca5a5;
  border-color: #b91c1c;
}

:root[data-theme="dark"] .zone-tab.danger.active {
  background: #dc2626; /* 赤を明るく */
  border-color: #dc2626;
  color: #ffffff;
}

/* ====== Download Modal ====== */

.modal.hidden {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 50;
}

.modal-content {
  background: var(--card-bg);
  padding: 18px;
  border-radius: 12px;
  width: 90%;
  max-width: 360px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  animation: fadeIn 0.15s ease-out;
}

.modal-content h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1rem;
}

.modal-content input[type="text"] {
  width: 100%;
  margin-bottom: 12px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}