.ipcalc-page {
  min-height: 100vh;
}

.ipcalc-main {
  width: min(1380px, calc(100% - 32px));
  margin: 0 auto;
  padding: 18px 0 64px;
}

.ipcalc-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 10px 0 8px;
}

.ipcalc-hero h1 {
  margin: 4px 0 0;
  color: #dcebe4;
  font-size: clamp(1.45rem, 2.2vw, 2.25rem);
  font-weight: 800;
  line-height: 1.12;
}

.ipcalc-hero p:last-child {
  max-width: 780px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.hero-badges span {
  padding: 8px 10px;
  color: #071311;
  background: var(--brand-deep);
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 900;
}

.ipcalc-workbench {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 18px;
  align-items: stretch;
  margin-top: 14px;
}

.calc-panel,
.result-panel {
  background: rgba(18, 28, 26, 0.94);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.22);
}

.calc-panel {
  display: grid;
  gap: 16px;
  padding: 22px;
}

.form-head h2,
.section-title h2 {
  margin: 0;
  color: var(--surface-strong);
  font-size: 1.35rem;
}

.form-head p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.calc-panel label {
  display: grid;
  gap: 7px;
  min-width: 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.calc-panel input {
  width: 100%;
  min-height: 48px;
  padding: 0 13px;
  color: var(--ink);
  background: #0c1513;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}

.calc-panel input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(41, 199, 173, 0.16);
}

.calc-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.calc-actions button,
.copy-button,
.example-grid button {
  min-height: 44px;
  padding: 0 14px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 900;
}

.calc-actions button:first-child {
  color: #061210;
  background: var(--brand);
  border: 0;
}

.secondary-button,
.copy-button,
.example-grid button {
  color: var(--ink);
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.calc-actions button:hover,
.calc-actions button:focus-visible,
.copy-button:hover,
.copy-button:focus-visible,
.example-grid button:hover,
.example-grid button:focus-visible {
  color: #061210;
  background: var(--accent);
  border-color: var(--accent);
  outline: none;
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.example-grid button {
  min-height: 40px;
  color: #dffaf1;
  font-size: 0.8rem;
  text-align: left;
}

.calc-results-panel {
  display: grid;
  align-content: start;
  gap: 0;
  padding: clamp(22px, 4vw, 38px);
  background:
    linear-gradient(135deg, rgba(41, 199, 173, 0.16), rgba(242, 165, 74, 0.12)),
    rgba(18, 28, 26, 0.94);
}

.result-layout {
  margin-top: 18px;
}

.result-panel {
  min-width: 0;
  padding: 22px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.summary-card,
.info-card {
  min-width: 0;
  padding: 14px;
  background: rgba(23, 36, 33, 0.86);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.summary-card span,
.info-card span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.summary-card strong,
.info-card strong {
  display: block;
  margin-top: 7px;
  overflow-wrap: anywhere;
  color: var(--surface-strong);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 1rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.bit-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
}

.bit-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.bit-legend i {
  width: 14px;
  height: 14px;
  border-radius: 4px;
}

.binary-table {
  display: grid;
  gap: 10px;
}

.binary-row {
  display: grid;
  grid-template-columns: 96px minmax(120px, 170px) minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 10px;
  background: rgba(7, 19, 17, 0.48);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.binary-label {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.binary-value,
.binary-bits {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.86rem;
}

.binary-bits {
  overflow-x: auto;
  white-space: nowrap;
}

.bit-net,
.binary-bits .net {
  color: #7fe7d3;
}

.bit-host,
.binary-bits .host {
  color: #f2a54a;
}

.binary-bits .dot {
  color: rgba(238, 248, 242, 0.42);
  padding: 0 2px;
}

.subnet-panel {
  margin-top: 18px;
}

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

.subnet-note {
  min-height: 22px;
  margin-bottom: 12px;
  color: #ffdca8;
}

.subnet-table-wrap {
  max-height: 620px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.subnet-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 820px;
}

.subnet-table th,
.subnet-table td {
  padding: 11px 12px;
  border-bottom: 1px solid rgba(185, 209, 200, 0.12);
  font-size: 0.9rem;
  text-align: left;
}

.subnet-table th {
  position: sticky;
  top: 0;
  z-index: 1;
  color: var(--brand-deep);
  background: #0b1110;
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.subnet-table td {
  color: #dffaf1;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.subnet-table tr:hover td {
  background: rgba(41, 199, 173, 0.08);
}

@media (max-width: 1080px) {
  .ipcalc-hero,
  .ipcalc-workbench {
    grid-template-columns: 1fr;
  }

  .hero-badges {
    justify-content: flex-start;
  }

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

@media (max-width: 680px) {
  .ipcalc-main {
    width: min(100% - 24px, 1380px);
    padding-top: 12px;
  }

  .calc-panel,
  .calc-results-panel,
  .result-panel {
    padding: 16px;
  }

  .calc-actions,
  .example-grid,
  .summary-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    align-items: stretch;
    flex-direction: column;
  }

  .subnet-actions {
    justify-content: stretch;
  }

  .subnet-actions button,
  .copy-button {
    width: 100%;
  }

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