:root {
  --hex-bg: #090b0c;
  --hex-bg-soft: #0d1012;
  --hex-panel: #12161a;
  --hex-panel-elevated: #171d22;
  --hex-border: #26312b;
  --hex-text: #e4f0e8;
  --hex-muted: #8ea398;
  --hex-accent: #42f58d;
  --hex-accent-soft: rgba(66, 245, 141, 0.16);
  --hex-danger: #ff5f6d;
}

* {
  box-sizing: border-box;
}

body.hex-editor-page {
  margin: 0;
  background: var(--hex-bg);
  color: var(--hex-text);
  font-family: Inter, Segoe UI, Arial, sans-serif;
  letter-spacing: 0.01em;
}

.hex-editor-shell {
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 18px;
  gap: 14px;
  position: relative;
  overflow: hidden;
}

.hex-editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 14px;
  border: 1px solid var(--hex-border);
  border-radius: 12px;
  background: var(--hex-panel);
  box-shadow: inset 0 0 0 1px rgba(66, 245, 141, 0.03);
}

.toolbar-left,
.toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.hex-editor-toolbar button,
.hex-editor-toolbar a {
  border: 1px solid var(--hex-border);
  background: var(--hex-panel-elevated);
  color: var(--hex-text);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease, background-color 0.18s ease;
}

.hex-editor-toolbar button:hover,
.hex-editor-toolbar a:hover {
  border-color: var(--hex-accent);
  box-shadow: 0 0 0 1px var(--hex-accent-soft) inset;
}

.hex-editor-toolbar button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.hex-editor-toolbar button:active,
.hex-editor-toolbar a:active {
  transform: translateY(1px);
}

#hexJumpInput {
  border: 1px solid var(--hex-border);
  border-radius: 8px;
  background: #0c1012;
  color: var(--hex-text);
  padding: 8px 10px;
  min-width: 140px;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

#hexJumpInput:focus {
  border-color: var(--hex-accent);
  box-shadow: 0 0 0 2px rgba(66, 245, 141, 0.16);
}

.hex-status-bar {
  border: 1px solid var(--hex-border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--hex-muted);
  background: var(--hex-panel);
  font-weight: 500;
}

.hex-status-bar[data-tone='error'] {
  color: #ffd3d7;
}

.hex-status-bar[data-tone='ok'] {
  color: #9cf6c6;
}

.hex-safety-indicator {
  min-width: 38px;
  padding: 8px 10px;
  font-size: 14px;
  line-height: 1;
  border-color: #33533f !important;
  box-shadow: inset 0 0 0 1px rgba(66, 245, 141, 0.12), 0 0 12px rgba(66, 245, 141, 0.14);
  animation: safetyPulse 2.2s ease-in-out infinite;
}

.hex-safety-panel {
  border: 1px solid #336148;
  border-radius: 12px;
  background: linear-gradient(180deg, #111a15 0%, #101418 100%);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: inset 0 0 0 1px rgba(66, 245, 141, 0.08), 0 6px 22px rgba(0, 0, 0, 0.35);
}

.hex-safety-header {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: flex-start;
}

.hex-safety-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  border: 1px solid #3f7e5b;
  background: rgba(66, 245, 141, 0.15);
  color: #beffd9;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.hex-safety-close {
  margin-left: auto;
}

.hex-safety-header h3 {
  margin: 0;
  font-size: 14px;
  color: #d6f2e1;
}

.hex-safety-close,
.hex-safety-dismiss {
  border: 1px solid var(--hex-border);
  background: #19211f;
  color: var(--hex-text);
  border-radius: 7px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.hex-safety-close:hover,
.hex-safety-dismiss:hover {
  border-color: var(--hex-accent);
  background: #1f2a27;
}

.hex-safety-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.hex-safety-item {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 8px;
  align-items: start;
  padding: 6px 8px;
  border-radius: 8px;
  background: rgba(66, 245, 141, 0.06);
  border: 1px solid rgba(66, 245, 141, 0.1);
}

.hex-safety-icon {
  color: var(--hex-accent);
  font-size: 13px;
  line-height: 1;
  margin-top: 1px;
  filter: drop-shadow(0 0 4px rgba(66, 245, 141, 0.35));
}

.hex-safety-text {
  color: #c3d8cc;
  font-size: 13px;
  line-height: 1.4;
}

.hex-safety-footer {
  display: flex;
  justify-content: flex-end;
}

.hex-safety-modal {
  position: fixed;
  inset: 0;
  background: rgba(3, 5, 4, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1200;
  padding: 12px;
}

.hex-safety-modal-card {
  width: 100%;
  max-width: 420px;
  border: 1px solid #3d6d52;
  border-radius: 12px;
  background: linear-gradient(180deg, #121b16 0%, #11161a 100%);
  padding: 16px;
  display: grid;
  gap: 12px;
}

.hex-safety-modal-card h3 {
  margin: 0;
  font-size: 16px;
  color: #ccffe0;
}

.hex-safety-modal-card p {
  margin: 0;
  color: #c2d7cb;
  font-size: 13px;
  line-height: 1.4;
}

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

.hex-safety-modal-actions button {
  border: 1px solid var(--hex-border);
  background: #1b2321;
  color: var(--hex-text);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.hex-safety-modal-actions button:hover {
  border-color: var(--hex-accent);
}

.hex-safety-modal-actions button:last-child {
  border-color: #2e7f53;
  background: #1f5f3e;
  box-shadow: 0 0 12px rgba(66, 245, 141, 0.14);
}

.hex-loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(4, 8, 6, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1300;
  border-radius: 12px;
}

.hex-loading-card {
  border: 1px solid #3b704f;
  background: linear-gradient(180deg, #141c18 0%, #101612 100%);
  border-radius: 12px;
  padding: 14px 16px;
  min-width: 260px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.hex-loading-card p {
  margin: 0;
  font-size: 13px;
  color: #d5ecde;
}

.hex-loading-spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(66, 245, 141, 0.25);
  border-top-color: var(--hex-accent);
  animation: hexSpin 0.8s linear infinite;
}

@keyframes safetyPulse {
  0% {
    box-shadow: inset 0 0 0 1px rgba(66, 245, 141, 0.12), 0 0 8px rgba(66, 245, 141, 0.08);
  }
  50% {
    box-shadow: inset 0 0 0 1px rgba(66, 245, 141, 0.2), 0 0 16px rgba(66, 245, 141, 0.2);
  }
  100% {
    box-shadow: inset 0 0 0 1px rgba(66, 245, 141, 0.12), 0 0 8px rgba(66, 245, 141, 0.08);
  }
}

@keyframes hexSpin {
  to {
    transform: rotate(360deg);
  }
}

.hex-access-denied {
  border: 1px solid #59323a;
  border-radius: 10px;
  padding: 24px;
  background: #271b1f;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.hex-upgrade-btn {
  border: 1px solid transparent;
  background: var(--hex-danger);
  color: #fff;
  border-radius: 8px;
  padding: 8px 12px;
  text-decoration: none;
}

.hex-workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  min-height: 0;
  flex: 1;
  overflow: hidden;
}

.hex-pane {
  border: 1px solid var(--hex-border);
  border-radius: 12px;
  background: var(--hex-panel);
  min-height: 0;
  height: 100%;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(66, 245, 141, 0.02);
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.hex-pane-scroller {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 10px;
  overflow-anchor: none;
}

.hex-row {
  display: grid;
  grid-template-columns: 96px 1fr 180px;
  align-items: center;
  border-bottom: 1px solid #1f2623;
}

.offset-cell {
  color: var(--hex-muted);
  font-family: Consolas, monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
}

.hex-cell-group {
  display: grid;
  grid-template-columns: repeat(16, minmax(28px, 1fr));
  gap: 4px;
  padding: 0 8px;
}

.ascii-cell-group {
  display: grid;
  grid-template-columns: repeat(16, minmax(10px, 1fr));
  gap: 2px;
  font-family: Consolas, monospace;
  color: #b4c5bc;
  font-size: 12px;
}

.hex-byte-cell {
  border: 1px solid transparent;
  background: #0d1214;
  border-radius: 4px;
  color: var(--hex-text);
  font-family: Consolas, monospace;
  font-size: 12px;
  padding: 3px 0;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, box-shadow 0.15s ease, color 0.15s ease;
}

.hex-byte-cell:hover {
  border-color: var(--hex-accent);
  background: #11181a;
}

.ascii-byte-cell {
  text-align: center;
}

.byte-diff {
  background: #2a1a1f;
  border-color: #6a3945;
  color: #ffd3dd;
}

.byte-active {
  border-color: var(--hex-accent);
  box-shadow: 0 0 0 1px rgba(66, 245, 141, 0.34), 0 0 10px rgba(66, 245, 141, 0.12);
  background: #102118;
}

.byte-edited {
  border-color: #2e7f53;
  background: #132419;
  color: #bff7d9;
}

.hex-byte-input {
  width: 100%;
  border: 1px solid var(--hex-accent);
  background: #0b1210;
  color: var(--hex-text);
  border-radius: 4px;
  text-align: center;
  font-family: Consolas, monospace;
  outline: none;
  box-shadow: 0 0 0 2px rgba(66, 245, 141, 0.16);
}

.hidden {
  display: none !important;
}

@media (max-width: 1100px) {
  .hex-workspace {
    grid-template-columns: 1fr;
  }
}