/* ============================================================
   TOOLS — индекс (#/tools), страницы инструментов,
   генераторы crontab и iptables
   ============================================================ */

.tools-home {
  padding: 48px 56px 80px;
  max-width: 1180px;
  margin: 0 auto;
}

.tools-hero {
  margin-bottom: 44px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border-2);
}
.tools-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.6px;
  line-height: 1.1;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.tools-title:focus {
  outline: none;
}
.tools-sub {
  font-size: 14.5px;
  color: var(--muted);
  max-width: 620px;
  line-height: 1.6;
}

.tool-category {
  margin-bottom: 42px;
}
.tool-category-title {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  color: var(--comment);
  letter-spacing: 1.6px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px;
}

.tool-card {
  display: block;
  padding: 16px 20px 16px 22px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  text-decoration: none;
  color: inherit;
  transition:
    background 0.15s,
    border-color 0.15s,
    transform 0.15s,
    border-left-color 0.15s;
}
.tool-card:hover {
  background: #2a2a2c;
  border-color: var(--border);
  border-left-color: var(--accent);
  transform: translateY(-1px);
}
.tool-card-name {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 6px;
  letter-spacing: -0.1px;
}
.tool-card-desc {
  font-size: 12.8px;
  color: var(--muted);
  line-height: 1.5;
}

/* --- Страница инструмента --- */

.tool-page {
  padding: 40px 56px 80px;
  max-width: 900px;
  margin: 0 auto;
}
.tool-page .breadcrumb {
  margin-bottom: 18px;
}

.tool-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.tool-title:focus {
  outline: none;
}

.tool-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 30px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-2);
}

.tool-body {
  margin-bottom: 40px;
}

.tool-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 26px;
}
.tool-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.tool-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: #8c8c8c;
}

.tool-input {
  padding: 11px 14px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-bright);
  font: inherit;
  font-family: var(--mono);
  font-size: 14px;
  outline: none;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
  width: 100%;
}
.tool-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.15);
}
.tool-input--invalid {
  border-color: #e05252;
  box-shadow: 0 0 0 3px rgba(224, 82, 82, 0.15);
}

.tool-hint {
  font-size: 12px;
  color: #7a7a7a;
  font-family: var(--mono);
}

.tool-result {
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  overflow: hidden;
}
.tool-result-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border-2);
  align-items: baseline;
}
.tool-result-row:last-child {
  border-bottom: none;
}
.tool-result-key {
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #8c8c8c;
}
.tool-result-val {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--text-bright);
  word-break: break-all;
}

.tool-error {
  padding: 12px 16px;
  background: rgba(224, 82, 82, 0.08);
  border: 1px solid rgba(224, 82, 82, 0.3);
  border-radius: 6px;
  color: #e0a0a0;
  font-size: 13.5px;
  font-family: var(--mono);
}

.tool-row-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}
.tool-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  color: var(--text);
  cursor: pointer;
  user-select: none;
}
.tool-check input {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 3px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  position: relative;
  cursor: pointer;
  transition:
    border-color 0.15s,
    background 0.15s;
  flex-shrink: 0;
}
.tool-check input:checked {
  background: var(--accent);
  border-color: var(--accent);
}
.tool-check input:checked::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
}

.tool-range {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--bg-3);
  border-radius: 2px;
  cursor: pointer;
  outline: none;
  margin: 10px 0 4px;
}
.tool-range::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  cursor: pointer;
  box-shadow: 0 0 0 1px var(--accent);
  margin-top: -1px;
}
.tool-range::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  cursor: pointer;
}

.tool-password {
  display: flex;
  align-items: stretch;
  gap: 8px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  padding: 10px 12px 10px 16px;
  min-height: 56px;
}
.tool-password-text {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--text-bright);
  letter-spacing: 0.5px;
  word-break: break-all;
  line-height: 1.5;
  background: none;
  border: none;
  outline: none;
  padding: 6px 0;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-bright);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 0.15s,
    border-color 0.15s,
    color 0.15s;
  white-space: nowrap;
}
.tool-btn:hover:not(:disabled) {
  background: var(--bg-4);
  border-color: var(--accent);
}
.tool-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.tool-btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.tool-btn--primary:hover:not(:disabled) {
  background: #0088e0;
  border-color: #0088e0;
}

.tool-strength {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  margin-top: 8px;
}
.tool-strength-bar {
  flex: 1;
  height: 5px;
  background: var(--bg-3);
  border-radius: 3px;
  overflow: hidden;
}
.tool-strength-fill {
  height: 100%;
  width: 0;
  border-radius: 3px;
  transition:
    width 0.25s,
    background 0.25s;
}
.tool-strength-fill[data-level="weak"] {
  background: #e05252;
  width: 25%;
}
.tool-strength-fill[data-level="fair"] {
  background: #e0a040;
  width: 50%;
}
.tool-strength-fill[data-level="good"] {
  background: #6a9955;
  width: 75%;
}
.tool-strength-fill[data-level="strong"] {
  background: #3fbf7f;
  width: 100%;
}

.tool-others {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border-2);
}
.tool-others-title {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: #8c8c8c;
  margin-bottom: 14px;
}
.tool-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tool-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 12.5px;
  font-family: var(--mono);
  text-decoration: none;
  transition:
    color 0.15s,
    background 0.15s,
    border-color 0.15s;
}
.tool-chip:hover {
  color: var(--text-bright);
  background: var(--bg-3);
  border-color: var(--accent);
}

@media (max-width: 820px) {
  .tools-home {
    padding: 32px 22px 60px;
  }
  .tools-title {
    font-size: 28px;
  }
  .tools-grid {
    grid-template-columns: 1fr;
  }
  .tool-page {
    padding: 28px 22px 60px;
  }
  .tool-title {
    font-size: 24px;
  }
  .tool-result-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .tool-result-row .tool-result-key {
    font-size: 11px;
  }
  .tool-password {
    flex-direction: column;
    padding: 14px;
  }
  .tool-password-text {
    font-size: 15px;
  }
  .tool-btn {
    width: 100%;
  }
}

/* ============================================================
   CRON GENERATOR
   ============================================================ */

.cron-builder {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.cron-block {
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 12px;
  overflow: hidden;
}

.cron-block-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-2);
  background: linear-gradient(180deg, #2a2a2c 0%, #252526 100%);
}

.cron-block-title {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--text-bright);
}

.cron-block-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: #7a7a7a;
  letter-spacing: 0.3px;
}

/* --- Пресеты --- */

.cron-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 12px 16px 0;
  border-bottom: 1px solid var(--border-2);
}

.cron-tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: #8c8c8c;
  font: inherit;
  font-size: 13px;
  font-family: var(--mono);
  font-weight: 500;
  cursor: pointer;
  transition:
    color 0.15s,
    border-color 0.15s,
    background 0.15s;
  margin-bottom: -1px;
}

.cron-tab:hover {
  color: var(--text-bright);
  background: rgba(255, 255, 255, 0.03);
}

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

.cron-tab-icon {
  font-size: 13px;
  opacity: 0.7;
  line-height: 1;
}

.cron-tab.active .cron-tab-icon {
  opacity: 1;
  color: var(--accent);
}

.cron-panels {
  padding: 16px 20px 20px;
}

.cron-panel {
  display: none;
  flex-wrap: wrap;
  gap: 8px;
}

.cron-panel.active {
  display: flex;
  animation: fade 0.18s ease;
}

.cron-chip {
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  background: #2d2d30;
  border: 1px solid #3a3a3d;
  border-radius: 7px;
  color: #c8c8c8;
  font: inherit;
  font-size: 12.5px;
  font-family: var(--mono);
  cursor: pointer;
  transition:
    color 0.15s,
    background 0.15s,
    border-color 0.15s,
    transform 0.12s cubic-bezier(0.2, 0.8, 0.3, 1);
}

.cron-chip:hover {
  color: #fff;
  background: #37373a;
  border-color: var(--accent);
  transform: translateY(-1px);
}

.cron-chip:active {
  transform: translateY(0);
  background: rgba(0, 122, 204, 0.15);
}

.cron-chip.cron-chip--active {
  color: #fff;
  background: rgba(0, 122, 204, 0.18);
  border-color: var(--accent);
}

/* --- Поля ввода --- */

.cron-block--fields .cron-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  padding: 18px 20px 20px;
}

.cron-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.cron-field-name {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: #8c8c8c;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cron-input {
  width: 100%;
  padding: 14px 12px;
  background: #1a1a1c;
  border: 1px solid #3a3a3d;
  border-radius: 8px;
  color: var(--text-bright);
  font: inherit;
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.5px;
  outline: none;
  transition:
    border-color 0.15s,
    box-shadow 0.15s,
    background 0.15s;
}

.cron-input::placeholder {
  color: #555;
  font-weight: 400;
  font-size: 13px;
}

.cron-input:hover {
  border-color: #4a4a4d;
}

.cron-input:focus {
  background: #1f1f22;
  border-color: var(--accent);
  box-shadow:
    0 0 0 3px rgba(0, 122, 204, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.cron-input.cron-input--invalid {
  border-color: #e05252;
  box-shadow: 0 0 0 3px rgba(224, 82, 82, 0.18);
}

.cron-field-hint {
  font-family: var(--mono);
  font-size: 10.5px;
  color: #7a7a7a;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.2px;
}

/* --- Карточка результата --- */

.cron-block--result {
  background: linear-gradient(180deg, #252526 0%, #1f1f21 100%);
}

.cron-result-card {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.cron-result-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.cron-result-expression {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-family: var(--mono);
}

.cron-token {
  display: inline-block;
  padding: 8px 14px;
  background: #1a1a1c;
  border: 1px solid #3a3a3d;
  border-radius: 7px;
  color: var(--text-bright);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition:
    background 0.15s,
    border-color 0.15s,
    box-shadow 0.15s,
    color 0.15s;
}

.cron-token--focused {
  background: rgba(0, 122, 204, 0.12);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.15);
  color: #fff;
}

.cron-token--invalid {
  background: rgba(224, 82, 82, 0.12);
  border-color: rgba(224, 82, 82, 0.55);
  color: #f0b0b0;
}

.cron-result-card--error .cron-result-expression .cron-token {
  opacity: 0.7;
}

.cron-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-bright);
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: 0.3px;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background 0.15s,
    border-color 0.15s,
    color 0.15s;
}

.cron-copy-btn:hover:not(:disabled) {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.cron-copy-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.cron-result-human {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-top: 16px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
}

.cron-human-label {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: #7a9ab0;
}

.cron-human-text {
  font-size: 17px;
  line-height: 1.5;
  color: #e0ecf5;
  font-weight: 500;
  letter-spacing: -0.1px;
}

.cron-block--result #cron-error {
  padding: 0 24px 20px;
}

/* --- Справка --- */

.cron-help {
  padding: 0;
}

.cron-help > summary {
  padding: 14px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #8c8c8c;
  display: flex;
  align-items: center;
  gap: 10px;
  transition:
    color 0.15s,
    background 0.15s;
}

.cron-help > summary::-webkit-details-marker {
  display: none;
}
.cron-help > summary::before {
  content: "▸";
  font-size: 10px;
  color: #6a6a6a;
  transition: transform 0.2s;
  display: inline-block;
}
.cron-help[open] > summary::before {
  transform: rotate(90deg);
  color: var(--accent);
}
.cron-help > summary:hover {
  color: var(--text-bright);
  background: rgba(255, 255, 255, 0.02);
}

.cron-help-body {
  padding: 4px 20px 20px;
  border-top: 1px solid var(--border-2);
  font-size: 13.5px;
  line-height: 1.7;
  color: #b5b5b5;
}
.cron-help-body p {
  margin: 14px 0 10px;
}
.cron-help-body p:first-child {
  margin-top: 16px;
}
.cron-help-body code {
  font-family: var(--mono);
  font-size: 12.5px;
  background: #2d2d30;
  color: #ce9178;
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid #3a3a3d;
}
.cron-help-body table {
  width: 100%;
  margin: 12px 0;
  border-collapse: collapse;
  font-size: 13px;
}
.cron-help-body th {
  text-align: left;
  padding: 7px 12px;
  background: #2a2a2c;
  color: var(--text-bright);
  font-size: 11.5px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
.cron-help-body td {
  padding: 7px 12px;
  border-bottom: 1px solid var(--border-2);
}
.cron-help-body td code {
  font-size: 12px;
}

/* --- Адаптив: cron --- */
@media (max-width: 820px) {
  .cron-block-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .cron-block--fields .cron-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cron-input {
    font-size: 15px;
    padding: 12px 10px;
  }
  .cron-token {
    padding: 6px 11px;
    font-size: 14px;
  }
  .cron-human-text {
    font-size: 15px;
  }
  .cron-tab {
    font-size: 12px;
    padding: 7px 10px;
  }
  .cron-tab-label {
    display: inline;
  }
  .cron-copy-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .cron-tab-label {
    display: none;
  }
  .cron-tab {
    padding: 8px 10px;
  }
  .cron-tab-icon {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cron-chip {
    transition: none;
  }
  .cron-chip:hover {
    transform: none;
  }
  .cron-panel.active {
    animation: none;
  }
}

/* ============================================================
   IPTABLES GENERATOR
   ============================================================ */

.ipt-builder {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.ipt-block {
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 12px;
  overflow: hidden;
}

.ipt-block-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-2);
  background: linear-gradient(180deg, #2a2a2c 0%, #252526 100%);
}

.ipt-block-title {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--text-bright);
}

.ipt-block-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: #7a7a7a;
  letter-spacing: 0.3px;
}

/* --- Пресеты --- */

.ipt-preset-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(230px, 0.45fr);
  gap: 12px;
  padding: 16px 20px 0;
}

.ipt-preset-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px 0;
  color: #8c8c8c;
  font-family: var(--mono);
  font-size: 11px;
}

.ipt-reset-btn {
  padding: 0;
  background: transparent;
  border: 0;
  color: #8c8c8c;
  font: inherit;
  cursor: pointer;
}

.ipt-reset-btn:hover,
.ipt-reset-btn:focus-visible {
  color: var(--text-bright);
}

.ipt-preset-selected {
  margin: 0 20px 18px;
  padding: 10px 12px;
  background: rgba(0, 122, 204, 0.08);
  border-left: 2px solid var(--accent);
  color: #b8c9d6;
  font-family: var(--mono);
  font-size: 11px;
}

.ipt-preset-empty {
  width: 100%;
  padding: 14px;
  border: 1px dashed #3a3a3d;
  border-radius: 7px;
  color: #8c8c8c;
  font-size: 12px;
  text-align: center;
}

.ipt-chip-group {
  color: #858585;
  font-size: 10px;
}

.ipt-chip.active {
  background: rgba(0, 122, 204, 0.16);
  border-color: var(--accent);
  color: #fff;
}

.ipt-advanced {
  margin: 16px 20px 0;
  border: 1px solid var(--border-2);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.08);
}

.ipt-advanced > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  color: #b8b8b8;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
}

.ipt-advanced-hint {
  color: #747474;
  font-size: 10px;
  font-weight: 400;
}

.ipt-advanced-body {
  padding-bottom: 16px;
  border-top: 1px solid var(--border-2);
}

.ipt-panels {
  padding: 16px 20px 20px;
}

.ipt-panel {
  display: none;
  flex-wrap: wrap;
  gap: 8px;
}

.ipt-panel.active {
  display: flex;
  animation: fade 0.18s ease;
}

.ipt-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  background: #2d2d30;
  border: 1px solid #3a3a3d;
  border-radius: 7px;
  color: #c8c8c8;
  font: inherit;
  font-size: 12.5px;
  font-family: var(--mono);
  cursor: pointer;
  transition:
    color 0.15s,
    background 0.15s,
    border-color 0.15s,
    transform 0.12s cubic-bezier(0.2, 0.8, 0.3, 1);
}

.ipt-chip:hover {
  color: #fff;
  background: #37373a;
  border-color: var(--accent);
  transform: translateY(-1px);
}

.ipt-chip:active {
  transform: translateY(0);
  background: rgba(0, 122, 204, 0.15);
}

/* --- Поля --- */

.ipt-block--fields {
  padding-bottom: 20px;
}

.ipt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  padding: 16px 20px 0;
}

.ipt-grid--2col {
  grid-template-columns: 1fr 1fr;
}

.ipt-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.ipt-field-name {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  color: #8c8c8c;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ipt-input,
.ipt-select {
  width: 100%;
  padding: 9px 11px;
  background: #1a1a1c;
  border: 1px solid #3a3a3d;
  border-radius: 6px;
  color: var(--text-bright);
  font: inherit;
  font-family: var(--mono);
  font-size: 13px;
  outline: none;
  transition:
    border-color 0.15s,
    box-shadow 0.15s,
    background 0.15s;
}

.ipt-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238c8c8c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 14px;
  padding-right: 32px;
}

.ipt-input:focus,
.ipt-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.15);
  background: #1f1f22;
}

.ipt-row-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  padding: 4px 0;
}

.ipt-check {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  font-family: var(--mono);
  color: var(--text);
  cursor: pointer;
  user-select: none;
}

.ipt-check input {
  appearance: none;
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  border-radius: 3px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
  transition:
    border-color 0.15s,
    background 0.15s;
}

.ipt-check input:checked {
  background: var(--accent);
  border-color: var(--accent);
}

.ipt-check input:checked::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
  background-size: 11px;
  background-position: center;
  background-repeat: no-repeat;
}

/* --- Результат --- */

.ipt-block--result {
  background: linear-gradient(180deg, #252526 0%, #1f1f21 100%);
}

.ipt-result-card {
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ipt-result-row {
  display: flex;
  align-items: stretch;
  gap: 12px;
  flex-wrap: wrap;
}

.ipt-result-command {
  flex: 1;
  min-width: 0;
  margin: 0;
  padding: 14px 16px;
  background: #181818;
  border: 1px solid #2a2a2d;
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  color: #d4d4d4;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-x: auto;
}

.ipt-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-bright);
  font: inherit;
  font-size: 12.5px;
  font-weight: 600;
  font-family: var(--mono);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition:
    background 0.15s,
    border-color 0.15s,
    color 0.15s;
}

.ipt-copy-btn:hover:not(:disabled) {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.ipt-copy-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.ipt-result-description {
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: #b5b5b5;
  padding-top: 14px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
}

.ipt-result-description:empty {
  display: none;
}

.ipt-desc-row {
  display: flex;
  gap: 10px;
  align-items: baseline;
}

.ipt-desc-key {
  color: #7a9ab0;
  min-width: 130px;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  flex-shrink: 0;
}

.ipt-desc-val {
  color: #e0ecf5;
  flex: 1;
  word-break: break-word;
}

.ipt-block--result #ipt-error {
  padding: 0 22px 20px;
}

.ipt-error-list {
  list-style: none;
  padding: 12px 16px;
  margin: 0;
  background: rgba(224, 82, 82, 0.08);
  border: 1px solid rgba(224, 82, 82, 0.3);
  border-radius: 8px;
  color: #e0a0a0;
  font-size: 13px;
  font-family: var(--mono);
}

.ipt-error-list li {
  padding: 2px 0 2px 16px;
  position: relative;
}

.ipt-error-list li::before {
  content: "✗";
  position: absolute;
  left: 0;
  color: #e05252;
}

/* --- Справка --- */

.ipt-help > summary {
  padding: 14px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #8c8c8c;
  display: flex;
  align-items: center;
  gap: 10px;
  transition:
    color 0.15s,
    background 0.15s;
}

.ipt-help > summary::-webkit-details-marker {
  display: none;
}
.ipt-help > summary::before {
  content: "▸";
  font-size: 10px;
  color: #6a6a6a;
  transition: transform 0.2s;
  display: inline-block;
}
.ipt-help[open] > summary::before {
  transform: rotate(90deg);
  color: var(--accent);
}
.ipt-help > summary:hover {
  color: var(--text-bright);
  background: rgba(255, 255, 255, 0.02);
}

.ipt-help-body {
  padding: 4px 20px 20px;
  border-top: 1px solid var(--border-2);
  font-size: 13.5px;
  line-height: 1.7;
  color: #b5b5b5;
}

.ipt-help-body p {
  margin: 14px 0 10px;
}
.ipt-help-body p:first-child {
  margin-top: 16px;
}
.ipt-help-body code {
  font-family: var(--mono);
  font-size: 12.5px;
  background: #2d2d30;
  color: #ce9178;
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid #3a3a3d;
}

.ipt-help-body table {
  width: 100%;
  margin: 12px 0;
  border-collapse: collapse;
  font-size: 13px;
}

.ipt-help-body th {
  text-align: left;
  padding: 7px 12px;
  background: #2a2a2c;
  color: var(--text-bright);
  font-size: 11.5px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}

.ipt-help-body td {
  padding: 7px 12px;
  border-bottom: 1px solid var(--border-2);
}

/* --- Адаптив: iptables --- */

@media (max-width: 820px) {
  .ipt-grid--2col,
  .ipt-preset-toolbar {
    grid-template-columns: 1fr;
  }
  .ipt-block-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .ipt-copy-btn {
    width: 100%;
  }
  .ipt-desc-key {
    min-width: 100px;
  }
}

@media (max-width: 480px) {
  .ipt-preset-toolbar,
  .ipt-preset-meta {
    padding-right: 14px;
    padding-left: 14px;
  }
  .ipt-preset-meta {
    align-items: flex-start;
    flex-direction: column;
  }
  .ipt-panels {
    padding-right: 14px;
    padding-left: 14px;
  }
  .ipt-preset-selected {
    margin-right: 14px;
    margin-left: 14px;
  }
  .ipt-advanced {
    margin-right: 14px;
    margin-left: 14px;
  }
  .ipt-advanced-hint {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ipt-chip {
    transition: none;
  }
  .ipt-chip:hover {
    transform: none;
  }
  .ipt-panel.active {
    animation: none;
  }
}

/* --- Сценарный калькулятор iptables --- */

.ipt-simple {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.ipt-simple .tool-form {
  margin-bottom: 0;
}

.ipt-simple-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.ipt-simple-action {
  max-width: 340px;
}

.ipt-simple-result {
  overflow: hidden;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 10px;
}

.ipt-simple-command-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-2);
}

.ipt-simple-command {
  min-height: 64px;
  margin: 0;
  padding: 20px;
  color: #b6d7f2;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

#ipt-error:not(:empty) {
  padding: 0 18px 18px;
}

#ipt-copy:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.ipt-syntax {
  border-top: 1px solid var(--border-2);
}

.ipt-syntax > summary {
  padding: 16px 0 4px;
  color: #b8b8b8;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
}

.ipt-syntax-body {
  margin-top: 12px;
  padding: 18px;
  background: var(--bg-2);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.65;
}

.ipt-syntax-body h3 {
  margin: 0 0 8px;
  color: var(--text-bright);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.ipt-syntax-body ul {
  margin: 0;
  padding-left: 18px;
}

.ipt-syntax-body code,
.ipt-syntax-body pre {
  font-family: var(--mono);
}

.ipt-syntax-body code {
  color: #b6d7f2;
}

.ipt-syntax-format {
  margin: 0 0 18px;
  overflow-wrap: anywhere;
}

.ipt-syntax-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 28px;
}

.ipt-syntax-examples {
  margin-top: 20px;
}

.ipt-syntax-examples pre {
  margin: 0;
  padding: 14px;
  overflow-x: auto;
  background: #1a1a1c;
  border-radius: 6px;
  color: #b6d7f2;
  font-size: 11.5px;
  line-height: 1.7;
}

@media (max-width: 640px) {
  .ipt-simple-fields,
  .ipt-syntax-grid {
    grid-template-columns: 1fr;
  }
  .ipt-simple-action {
    max-width: none;
  }
  .ipt-simple-command-head {
    align-items: flex-start;
    flex-direction: column;
  }
}