:root {
  --paper: #f4efdf;
  --paper-deep: #e8dfc6;
  --ink: #171713;
  --muted: #625e52;
  --red: #e24a2a;
  --red-dark: #a82f18;
  --yellow: #f3c746;
  --green: #8fad67;
  --line: #292820;
  --panel: rgba(255, 253, 244, 0.78);
  --panel-solid: #fbf7e9;
  --shadow: 8px 8px 0 var(--ink);
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(23, 23, 19, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 23, 19, 0.045) 1px, transparent 1px),
    radial-gradient(circle at 15% 8%, rgba(226, 74, 42, 0.13), transparent 29rem),
    radial-gradient(circle at 86% 38%, rgba(243, 199, 70, 0.16), transparent 25rem);
  background-size: 24px 24px, 24px 24px, auto, auto;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a,
input,
select,
textarea {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

[hidden] {
  display: none !important;
}

.page-shell {
  width: min(1220px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 28px;
}

.masthead {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 24px;
  border-bottom: 4px solid var(--ink);
}

.eyebrow,
.section-number,
.label,
.case-tab,
.footer-mark,
.field > span,
.status-line,
.department-number,
.situation-board span,
.summary-chips span {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-block;
  padding: 7px 10px;
  color: var(--paper);
  background: var(--ink);
  text-decoration: none;
}

h1 {
  max-width: 930px;
  margin: 16px 0 0;
  font-size: clamp(2.7rem, 7vw, 6.7rem);
  line-height: 0.88;
  letter-spacing: -0.075em;
  text-transform: uppercase;
}

h1 span {
  color: var(--red);
}

.stamp {
  flex: 0 0 196px;
  margin-top: 4px;
  padding: 13px 12px 11px;
  color: var(--red);
  border: 4px double var(--red);
  font-family: var(--mono);
  font-size: 0.92rem;
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
  text-transform: uppercase;
  transform: rotate(2.5deg);
}

.stamp span {
  display: block;
  margin-bottom: 6px;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}

.department-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  margin-top: 18px;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: 4px 4px 0 rgba(23, 23, 19, 0.25);
}

.department-nav a {
  min-width: 0;
  padding: 12px 8px;
  border-right: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 0.69rem;
  font-weight: 850;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 120ms ease, color 120ms ease;
}

.department-nav a:last-child {
  border-right: 0;
}

.department-nav a:hover,
.department-nav a[aria-current="page"] {
  color: var(--paper);
  background: var(--ink);
}

.department-nav span {
  color: var(--red);
}

.department-nav a[aria-current="page"] span {
  color: var(--yellow);
}

.tool-panel {
  padding-top: 42px;
  animation: panel-in 180ms ease-out;
}

.panel-heading {
  max-width: 940px;
  margin-bottom: 28px;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(230px, 0.65fr);
  gap: 48px;
  max-width: none;
  align-items: end;
}

.panel-heading h2 {
  margin: 12px 0 0;
  font-size: clamp(2.45rem, 5vw, 5.3rem);
  line-height: 0.91;
  letter-spacing: -0.065em;
  text-transform: uppercase;
}

.panel-heading > p,
.split-heading > p,
.directory-heading > p {
  margin: 16px 0 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.65;
}

.section-number {
  margin: 0;
  color: var(--red);
}

.situation-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 3px solid var(--ink);
  background: var(--panel-solid);
  box-shadow: var(--shadow);
}

.situation-board > div {
  min-width: 0;
  padding: 19px 18px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.situation-board > div:nth-child(4) {
  border-right: 0;
}

.situation-board .situation-verdict {
  grid-column: 1 / -1;
  border-right: 0;
  border-bottom: 0;
  background: var(--yellow);
}

.situation-board span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
}

.situation-board strong {
  display: block;
  font-family: var(--mono);
  font-size: clamp(0.85rem, 1.6vw, 1.08rem);
  overflow-wrap: anywhere;
}

.situation-verdict strong {
  font-size: clamp(1.08rem, 2vw, 1.45rem);
}

.directory-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.7fr);
  gap: 48px;
  align-items: end;
  margin: 58px 0 22px;
  padding-top: 26px;
  border-top: 4px solid var(--ink);
}

.directory-heading h3 {
  margin: 8px 0 0;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  text-transform: uppercase;
}

.department-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.department-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 300px;
  padding: 24px;
  border: 3px solid var(--ink);
  background: var(--panel);
  box-shadow: 5px 5px 0 var(--ink);
  text-decoration: none;
  overflow: hidden;
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

.department-card::after {
  position: absolute;
  right: -28px;
  top: -32px;
  width: 100px;
  height: 100px;
  border: 17px solid rgba(23, 23, 19, 0.07);
  border-radius: 50%;
  content: "";
}

.department-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 9px 9px 0 var(--ink);
  background: var(--yellow);
}

.department-card.accent-yellow {
  background: var(--yellow);
}

.department-card.accent-red {
  color: var(--paper);
  background: var(--red);
}

.department-card.accent-red .department-number,
.department-card.accent-red p {
  color: var(--paper);
}

.department-number {
  color: var(--red);
}

.department-card h3 {
  margin: 28px 0 13px;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  line-height: 0.98;
  letter-spacing: -0.045em;
  text-transform: uppercase;
}

.department-card p {
  margin: 0 0 26px;
  color: #39372f;
  font-size: 0.94rem;
  font-weight: 620;
  line-height: 1.55;
}

.department-card > strong {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 0.73rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.ip-dossier {
  position: relative;
  padding: 48px clamp(22px, 5vw, 62px) 34px;
  border: 3px solid var(--ink);
  background: var(--yellow);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.ip-dossier::after {
  position: absolute;
  right: -35px;
  bottom: -58px;
  width: 190px;
  height: 190px;
  border: 26px solid rgba(23, 23, 19, 0.08);
  border-radius: 50%;
  content: "";
}

.case-tab {
  position: absolute;
  top: 0;
  left: 0;
  padding: 8px 12px;
  color: var(--paper);
  background: var(--ink);
}

.ip-display-wrap,
.actions {
  position: relative;
  z-index: 1;
}

.label {
  margin: 0;
  color: #494022;
}

.ip-address {
  max-width: 100%;
  margin: 12px 0 10px;
  font-family: var(--mono);
  font-size: clamp(2rem, 7vw, 5.8rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.07em;
  overflow-wrap: anywhere;
}

.ip-address.is-loading {
  animation: blink 0.9s steps(2, end) infinite;
}

.loading-note {
  margin: 0;
  color: #4d4327;
  font-family: var(--mono);
  font-size: 0.88rem;
  font-weight: 700;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.actions-top {
  margin: 0 0 20px;
}

.button {
  min-height: 46px;
  padding: 11px 16px;
  color: var(--ink);
  border: 2px solid var(--ink);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.34);
  box-shadow: 3px 3px 0 var(--ink);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.055em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease, color 120ms ease;
}

.button-primary {
  color: var(--paper);
  background: var(--ink);
}

.button-danger {
  color: var(--red-dark);
  border-color: var(--red-dark);
}

.button-compact {
  min-height: 38px;
  padding: 8px 11px;
  font-size: 0.68rem;
}

.button-wide {
  width: 100%;
}

.button:hover:not(:disabled) {
  color: var(--paper);
  background: var(--red);
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 var(--ink);
}

.button:active:not(:disabled) {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 var(--ink);
}

.button:focus-visible,
.department-nav a:focus-visible,
.department-card:focus-visible,
.eyebrow:focus-visible,
.mode-button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 4px solid var(--red);
  outline-offset: 3px;
}

.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.two-column-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr);
  gap: 26px;
  margin-top: 42px;
}

.document-card {
  border: 3px solid var(--ink);
  background: var(--panel);
  padding: clamp(22px, 4vw, 38px);
}

.verdict-card {
  display: flex;
  flex-direction: column;
  min-height: 430px;
}

.document-card h3,
.result-heading h3 {
  margin: 16px 0 0;
  font-size: clamp(1.8rem, 3.8vw, 3.35rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
  text-transform: uppercase;
}

.large-copy {
  margin: 24px 0 36px;
  color: #39372f;
  font-size: clamp(1.05rem, 2vw, 1.4rem);
  font-weight: 650;
  line-height: 1.5;
}

.meter {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.05em;
}

.meter-track {
  height: 14px;
  margin: 8px 0;
  border: 2px solid var(--ink);
}

.meter-fill {
  width: 97%;
  height: 100%;
  background: repeating-linear-gradient(135deg, var(--red) 0 8px, var(--ink) 8px 16px);
}

.details-list {
  margin: 22px 0 0;
  border-top: 2px solid var(--ink);
}

.details-list > div {
  display: grid;
  grid-template-columns: minmax(130px, 0.65fr) minmax(0, 1.35fr);
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(23, 23, 19, 0.48);
}

.details-list.wide-labels > div {
  grid-template-columns: minmax(190px, 0.78fr) minmax(0, 1.22fr);
}

.details-list dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.71rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.details-list dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 750;
  overflow-wrap: anywhere;
}

.notice-strip {
  margin-top: 28px;
  padding: 20px 22px;
  border-top: 4px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  color: #403e35;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.68;
}

.notice-strip strong {
  color: var(--red-dark);
  text-transform: uppercase;
}

.tool-form {
  padding: 24px;
  border: 3px solid var(--ink);
  background: var(--yellow);
  box-shadow: var(--shadow);
}

.tool-form-inline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(170px, 0.25fr) auto;
  gap: 16px;
  align-items: end;
}

#subnet-form {
  grid-template-columns: minmax(0, 1fr) auto;
}

.field {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.field > span {
  color: #494022;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-width: 0;
  color: var(--ink);
  border: 2px solid var(--ink);
  border-radius: 0;
  background: var(--panel-solid);
  font-family: var(--mono);
  font-weight: 700;
}

.field input,
.field select {
  min-height: 48px;
  padding: 10px 12px;
}

.field textarea {
  min-height: 410px;
  padding: 14px;
  resize: vertical;
  line-height: 1.55;
  tab-size: 2;
}

.field input[type="range"] {
  min-height: auto;
  padding: 0;
  accent-color: var(--red);
  background: transparent;
}

.form-submit {
  min-height: 48px;
  white-space: nowrap;
}

.status-line {
  margin-top: 22px;
  padding: 13px 15px;
  color: var(--muted);
  border-left: 8px solid var(--ink);
  background: rgba(255, 253, 244, 0.66);
  line-height: 1.45;
  text-transform: none;
}

.status-line.is-success {
  color: var(--ink);
  border-left-color: var(--green);
}

.status-line.is-error {
  color: var(--red-dark);
  border-left-color: var(--red);
  background: rgba(226, 74, 42, 0.08);
}

.results-card {
  margin-top: 22px;
}

.result-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
}

.summary-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 23px 0 17px;
}

.summary-chips span {
  padding: 7px 9px;
  color: var(--paper);
  background: var(--ink);
}

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  border: 2px solid var(--ink);
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.79rem;
}

.results-table th,
.results-table td {
  padding: 12px 13px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}

.results-table th:last-child,
.results-table td:last-child {
  border-right: 0;
}

.results-table tbody tr:last-child td {
  border-bottom: 0;
}

.results-table th {
  color: var(--paper);
  background: var(--ink);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.results-table td:nth-child(1) {
  min-width: 180px;
}

.results-table td:nth-child(4) {
  min-width: 260px;
  white-space: pre-wrap;
}

.tool-verdict {
  margin: 22px 0 0;
  padding: 16px 18px;
  border: 2px solid var(--ink);
  background: var(--yellow);
  font-family: var(--mono);
  font-size: 0.84rem;
  font-weight: 750;
  line-height: 1.55;
}

.editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.editor-field {
  padding: 18px;
  border: 3px solid var(--ink);
  background: var(--panel);
}

.mode-switch {
  display: inline-flex;
  margin-bottom: 20px;
  border: 2px solid var(--ink);
}

.mode-button {
  min-height: 44px;
  padding: 10px 18px;
  border: 0;
  border-right: 2px solid var(--ink);
  background: var(--panel-solid);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
}

.mode-button:last-child {
  border-right: 0;
}

.mode-button.is-active {
  color: var(--paper);
  background: var(--ink);
}

.generator-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
  gap: 24px;
  align-items: start;
}

.generator-controls {
  display: grid;
  gap: 22px;
  background: var(--yellow);
  box-shadow: var(--shadow);
}

.generator-controls > div {
  display: grid;
  gap: 20px;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.check-field {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px;
  border: 2px solid var(--ink);
  background: rgba(255, 255, 255, 0.3);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 800;
}

.check-field.full {
  grid-column: 1 / -1;
}

.check-field input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--red);
}

.generator-results {
  min-height: 470px;
}

.password-results {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.password-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: stretch;
}

.password-value {
  min-width: 0;
  padding: 13px 14px;
  border: 2px solid var(--ink);
  background: var(--panel-solid);
  font-family: var(--mono);
  font-size: 0.88rem;
  font-weight: 800;
  line-height: 1.45;
  overflow-wrap: anywhere;
  user-select: all;
}

.password-row .button {
  box-shadow: none;
}

footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  margin-top: 52px;
  padding: 23px 0 0;
  border-top: 4px solid var(--ink);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
}

footer p {
  margin: 0;
}

.footer-mark {
  color: var(--ink);
  text-align: right;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 50;
  max-width: min(440px, calc(100vw - 44px));
  padding: 14px 16px;
  color: var(--paper);
  border: 2px solid var(--ink);
  background: var(--red);
  box-shadow: 5px 5px 0 var(--ink);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 850;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 150ms ease, transform 150ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes blink {
  50% { opacity: 0.42; }
}

@keyframes panel-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 980px) {
  .department-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .department-nav a:nth-child(4) {
    border-right: 0;
  }

  .department-nav a:nth-child(n + 5) {
    border-top: 1px solid var(--ink);
  }

  .department-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .situation-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .situation-board > div:nth-child(2) {
    border-right: 0;
  }

  .situation-board > div:nth-child(4) {
    border-right: 0;
  }

  .tool-form-inline {
    grid-template-columns: minmax(0, 1fr) minmax(160px, 0.3fr);
  }

  .tool-form-inline .form-submit {
    grid-column: 1 / -1;
  }

  #subnet-form {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(100% - 24px, 720px);
    padding-top: 18px;
  }

  .masthead {
    display: block;
  }

  .stamp {
    width: 190px;
    margin-top: 24px;
  }

  .split-heading,
  .directory-heading,
  .two-column-grid,
  .editor-grid,
  .generator-layout {
    grid-template-columns: 1fr;
  }

  .split-heading,
  .directory-heading {
    gap: 12px;
  }

  .department-nav {
    position: static;
  }

  .details-list.wide-labels > div {
    grid-template-columns: minmax(150px, 0.7fr) minmax(0, 1.3fr);
  }

  footer {
    display: grid;
  }

  .footer-mark {
    text-align: left;
  }
}

@media (max-width: 620px) {
  h1 {
    font-size: clamp(2.6rem, 15vw, 4.25rem);
  }

  .panel-heading h2 {
    font-size: clamp(2.35rem, 12vw, 4.2rem);
  }

  .department-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .department-nav a {
    border-top: 1px solid var(--ink);
  }

  .department-nav a:nth-child(odd) {
    border-right: 1px solid var(--ink);
  }

  .department-nav a:nth-child(even) {
    border-right: 0;
  }

  .department-nav a:nth-child(-n + 2) {
    border-top: 0;
  }

  .department-grid,
  .situation-board,
  .tool-form-inline,
  .check-grid {
    grid-template-columns: 1fr;
  }

  .situation-board > div,
  .situation-board > div:nth-child(2),
  .situation-board > div:nth-child(4) {
    border-right: 0;
  }

  .department-card {
    min-height: 250px;
  }

  .ip-dossier,
  .tool-form,
  .generator-controls {
    box-shadow: 5px 5px 0 var(--ink);
  }

  .ip-address {
    font-size: clamp(1.65rem, 11vw, 3rem);
    letter-spacing: -0.065em;
  }

  .actions,
  .actions .button,
  .form-submit,
  .mode-switch,
  .mode-button {
    width: 100%;
  }

  .mode-switch {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .result-heading {
    display: grid;
  }

  .details-list > div,
  .details-list.wide-labels > div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .password-row {
    grid-template-columns: 1fr;
  }

  .password-row .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}