.pvst-toolkit {
  --pvst-bg: #f6f8fc;
  --pvst-card: #ffffff;
  --pvst-text: #16324f;
  --pvst-muted: #66758a;
  --pvst-border: #dbe4f0;
  --pvst-primary: #1f67e8;
  --pvst-primary-dark: #174fb5;
  --pvst-success: #168554;
  --pvst-success-bg: #eaf8f1;
  --pvst-warning: #8a6400;
  --pvst-warning-bg: #fff4cf;
  --pvst-danger: #b42318;
  --pvst-danger-bg: #fff0ef;
  --pvst-info-bg: #eef5ff;
  width: 100%;
  max-width: 100%;
  margin: 24px auto;
  padding: 24px;
  box-sizing: border-box;
  overflow: hidden;
  color: var(--pvst-text);
  background: var(--pvst-bg);
  border: 1px solid var(--pvst-border);
  border-radius: 22px;
  font-family: inherit;
}

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

.pvst-toolbar { display: flex; justify-content: flex-end; margin-bottom: 8px; }
.pvst-lang { display: inline-flex; gap: 7px; }
.pvst-lang button {
  min-width: 42px;
  padding: 7px 12px;
  color: var(--pvst-text);
  background: #fff;
  border: 1px solid var(--pvst-border);
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 800;
}
.pvst-lang button.is-active { color: #fff; background: #0f2340; border-color: #0f2340; }

.pvst-header { max-width: 900px; margin-bottom: 22px; }
.pvst-kicker {
  display: inline-flex;
  margin-bottom: 9px;
  color: var(--pvst-primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .045em;
  text-transform: uppercase;
}
.pvst-header h2 { margin: 0 0 10px; color: var(--pvst-text); font-size: clamp(28px, 4.2vw, 42px); line-height: 1.12; }
.pvst-header p { margin: 0; color: var(--pvst-muted); font-size: 17px; line-height: 1.62; }

.pvst-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 20px;
}
.pvst-tab {
  display: flex;
  gap: 11px;
  align-items: center;
  min-width: 0;
  padding: 14px;
  color: var(--pvst-text);
  background: #fff;
  border: 1px solid var(--pvst-border);
  border-radius: 14px;
  cursor: pointer;
  font: inherit;
  text-align: left;
}
.pvst-tab:hover { border-color: #a9c3ec; }
.pvst-tab.is-active { border-color: var(--pvst-primary); box-shadow: 0 0 0 2px rgba(31,103,232,.1); }
.pvst-tab__icon {
  flex: 0 0 auto;
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: #fff;
  background: var(--pvst-primary);
  border-radius: 10px;
  font-weight: 900;
}
.pvst-tab__copy { min-width: 0; }
.pvst-tab__copy strong { display: block; overflow-wrap: anywhere; font-size: 14px; line-height: 1.25; }
.pvst-tab__copy small { display: block; margin-top: 3px; color: var(--pvst-muted); font-size: 11px; line-height: 1.3; }

.pvst-main { min-width: 0; }
.pvst-tool-card {
  min-width: 0;
  padding: 24px;
  background: var(--pvst-card);
  border: 1px solid var(--pvst-border);
  border-radius: 18px;
}
.pvst-tool-head { margin-bottom: 20px; }
.pvst-tool-head h3 { margin: 0 0 7px; font-size: 26px; line-height: 1.2; }
.pvst-tool-head p { margin: 0; color: var(--pvst-muted); line-height: 1.55; }

.pvst-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.pvst-panel { min-width: 0; padding: 18px; background: #fff; border: 1px solid var(--pvst-border); border-radius: 14px; }
.pvst-panel--soft { background: #f9fbff; }
.pvst-panel h4 { margin: 0 0 14px; font-size: 19px; }
.pvst-panel p { color: var(--pvst-muted); line-height: 1.55; }

.pvst-field { margin-bottom: 16px; }
.pvst-field:last-child { margin-bottom: 0; }
.pvst-field label,
.pvst-label { display: block; margin-bottom: 7px; color: var(--pvst-text); font-size: 14px; font-weight: 800; }
.pvst-field small { display: block; margin-top: 6px; color: var(--pvst-muted); line-height: 1.4; }
.pvst-field input[type="text"],
.pvst-field input[type="number"],
.pvst-field input[type="email"],
.pvst-field select,
.pvst-field textarea {
  width: 100%;
  max-width: 100%;
  padding: 11px 12px;
  color: #1d2f45;
  background: #fff;
  border: 1px solid #cfd9e7;
  border-radius: 10px;
  font: inherit;
  line-height: 1.4;
}
.pvst-field textarea { min-height: 185px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
.pvst-field input:focus,
.pvst-field select:focus,
.pvst-field textarea:focus { outline: 2px solid rgba(31,103,232,.18); border-color: var(--pvst-primary); }

.pvst-inline { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.pvst-check { display: flex; gap: 9px; align-items: flex-start; color: var(--pvst-text); font-size: 14px; line-height: 1.45; }
.pvst-check input { margin-top: 3px; accent-color: var(--pvst-primary); }
.pvst-radio-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 9px; }
.pvst-radio {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  padding: 12px;
  border: 1px solid var(--pvst-border);
  border-radius: 10px;
  cursor: pointer;
}
.pvst-radio input { margin-top: 3px; accent-color: var(--pvst-primary); }
.pvst-radio strong, .pvst-radio small { display: block; }
.pvst-radio small { margin-top: 2px; color: var(--pvst-muted); font-weight: 400; }

.pvst-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 16px;
  color: #fff !important;
  background: var(--pvst-primary);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  text-decoration: none !important;
}
.pvst-button:hover { background: var(--pvst-primary-dark); }
.pvst-button--secondary { color: var(--pvst-primary) !important; background: #eaf1ff; }
.pvst-button--secondary:hover { background: #dce8ff; }
.pvst-button--ghost { color: var(--pvst-text) !important; background: #fff; border: 1px solid var(--pvst-border); }
.pvst-button--danger { background: var(--pvst-danger); }
.pvst-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 14px; }

.pvst-code {
  position: relative;
  min-width: 0;
  max-height: 420px;
  overflow: auto;
  padding: 16px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: #e9f2ff;
  background: #101a2a;
  border-radius: 12px;
  font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.pvst-report {
  min-width: 0;
  padding: 16px;
  color: #1c2c40;
  background: #f7faff;
  border: 1px solid var(--pvst-border);
  border-radius: 12px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.pvst-alert { padding: 13px 14px; margin: 12px 0; border-radius: 11px; line-height: 1.5; }
.pvst-alert strong { color: inherit; }
.pvst-alert--info { color: #17416f; background: var(--pvst-info-bg); }
.pvst-alert--success { color: #12663f; background: var(--pvst-success-bg); }
.pvst-alert--warning { color: var(--pvst-warning); background: var(--pvst-warning-bg); }
.pvst-alert--danger { color: var(--pvst-danger); background: var(--pvst-danger-bg); }

.pvst-results { margin-top: 18px; }
.pvst-result-card { padding: 16px; margin-bottom: 10px; border: 1px solid var(--pvst-border); border-radius: 12px; background: #fff; }
.pvst-result-card:last-child { margin-bottom: 0; }
.pvst-result-card h5 { margin: 0 0 7px; font-size: 16px; }
.pvst-result-card p { margin: 0; color: var(--pvst-muted); line-height: 1.5; }
.pvst-result-card ul { margin: 8px 0 0 19px; padding: 0; }
.pvst-result-card li { margin: 4px 0; line-height: 1.45; }
.pvst-result-card--critical { border-left: 5px solid #d92d20; }
.pvst-result-card--warning { border-left: 5px solid #e2a400; }
.pvst-result-card--ok { border-left: 5px solid #18a566; }
.pvst-result-card--info { border-left: 5px solid var(--pvst-primary); }

.pvst-summary-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 10px; margin: 14px 0; }
.pvst-metric { min-width: 0; padding: 13px; background: #f5f8fc; border-radius: 10px; }
.pvst-metric span { display: block; color: var(--pvst-muted); font-size: 11px; }
.pvst-metric strong { display: block; margin-top: 4px; overflow-wrap: anywhere; font-size: 16px; }

.pvst-server-preview { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 8px; padding: 12px; margin-top: 9px; background: #f4f7fb; border-radius: 10px; }
.pvst-server-preview div { min-width: 0; }
.pvst-server-preview span { display: block; color: var(--pvst-muted); font-size: 10px; }
.pvst-server-preview strong { display: block; margin-top: 3px; overflow-wrap: anywhere; font-size: 13px; }

.pvst-severity { display: inline-flex; align-items: center; gap: 6px; margin-bottom: 8px; padding: 4px 8px; border-radius: 999px; font-size: 11px; font-weight: 900; text-transform: uppercase; letter-spacing: .04em; }
.pvst-severity--critical { color: #8d1d14; background: #fee4e2; }
.pvst-severity--warning { color: #7a5600; background: #fff0bf; }
.pvst-severity--info { color: #17416f; background: #e3efff; }
.pvst-severity--ok { color: #12663f; background: #dff5e9; }

.pvst-empty { padding: 24px; color: var(--pvst-muted); background: #f5f8fc; border-radius: 12px; text-align: center; }
.pvst-hidden { display: none !important; }

.pvst-footer { margin-top: 18px; }
.pvst-safety { display: flex; gap: 8px; align-items: baseline; padding: 13px 14px; color: #165e3d; background: #edf9f2; border-radius: 11px; line-height: 1.45; }
.pvst-footer > p { margin: 10px 0 0; color: var(--pvst-muted); font-size: 12px; line-height: 1.5; }

@media (max-width: 1020px) {
  .pvst-tabs { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .pvst-grid { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .pvst-toolkit { padding: 16px; border-radius: 16px; }
  .pvst-tool-card { padding: 16px; }
  .pvst-tabs { grid-template-columns: 1fr; }
  .pvst-radio-grid { grid-template-columns: 1fr; }
  .pvst-summary-grid { grid-template-columns: 1fr; }
  .pvst-server-preview { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .pvst-safety { display: block; }
  .pvst-safety strong { display: block; margin-bottom: 4px; }
}
@media (max-width: 430px) {
  .pvst-server-preview { grid-template-columns: 1fr; }
  .pvst-button { width: 100%; }
  .pvst-actions { display: grid; grid-template-columns: 1fr; }
}


/* v1.1 beginner-friendly three-step script workflow */
.pvst-wizard {
  margin: 0 0 22px;
  padding: 18px;
  background: #f8fbff;
  border: 1px solid var(--pvst-border);
  border-radius: 15px;
}
.pvst-wizard h4 { margin: 0 0 14px; font-size: 18px; }
.pvst-wizard-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; }
.pvst-wizard-grid article { position: relative; display: flex; gap: 11px; min-width: 0; padding: 13px; background: #fff; border: 1px solid var(--pvst-border); border-radius: 12px; }
.pvst-wizard-grid article:not(:last-child)::after { content: '→'; position: absolute; right: -10px; top: 50%; z-index: 2; transform: translateY(-50%); color: var(--pvst-primary); background: var(--pvst-bg); font-weight: 900; }
.pvst-wizard-grid article > span,
.pvst-step-label > span { display: grid; flex: 0 0 auto; width: 30px; height: 30px; place-items: center; color: #fff; background: var(--pvst-primary); border-radius: 999px; font-weight: 900; }
.pvst-wizard-grid strong { display: block; margin-bottom: 4px; }
.pvst-wizard-grid p { margin: 0; color: var(--pvst-muted); font-size: 13px; line-height: 1.45; }
.pvst-step-label { display: flex; gap: 10px; align-items: center; margin: 22px 0 10px; }
.pvst-step-label strong { font-size: 18px; }
.pvst-step-label--inside { margin: 0 0 14px; }
.pvst-run-location { display: flex; gap: 12px; align-items: flex-start; padding: 13px; margin-bottom: 12px; color: #17416f; background: var(--pvst-info-bg); border-radius: 11px; }
.pvst-run-location > span { display: grid; flex: 0 0 auto; min-width: 34px; height: 34px; place-items: center; color: #fff; background: var(--pvst-primary); border-radius: 9px; font: 700 13px/1 ui-monospace, monospace; }
.pvst-run-location p { margin: 0; color: inherit; }
.pvst-paste-status { padding: 11px 13px; margin: 0 0 12px; border-radius: 10px; font-size: 13px; line-height: 1.45; }
.pvst-paste-status.is-found { color: #12663f; background: var(--pvst-success-bg); }
.pvst-paste-status.is-missing { color: var(--pvst-warning); background: var(--pvst-warning-bg); }
.pvst-button:disabled { cursor: not-allowed; opacity: .5; }
.pvst-summary-section { margin-bottom: 20px; }
.pvst-summary-section h5 { margin: 0 0 10px; font-size: 16px; }
.pvst-disk-metrics { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 9px; }
.pvst-disk-metric { display: grid; gap: 4px; min-width: 0; padding: 13px; background: #fff; border: 1px solid var(--pvst-border); border-radius: 11px; }
.pvst-disk-metric > span { color: var(--pvst-primary); font-weight: 800; }
.pvst-disk-metric small { color: var(--pvst-muted); }
.pvst-disk-metric em { color: var(--pvst-warning); font-size: 11px; font-style: normal; font-weight: 700; }
.pvst-disk-metric.is-system { background: #fffaf0; }
.pvst-rank-list { display: grid; gap: 8px; }
.pvst-rank-list > div { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 12px; align-items: start; padding: 10px 11px; background: #fff; border: 1px solid var(--pvst-border); border-radius: 9px; }
.pvst-rank-list code { min-width: 0; overflow-wrap: anywhere; white-space: normal; font-size: 12px; }
.pvst-rank-list strong { white-space: nowrap; font-size: 13px; }

@media (max-width: 780px) {
  .pvst-wizard-grid { grid-template-columns: 1fr; }
  .pvst-wizard-grid article:not(:last-child)::after { content: '↓'; right: auto; left: 20px; top: auto; bottom: -15px; transform: none; }
}
@media (max-width: 520px) {
  .pvst-disk-metrics { grid-template-columns: 1fr; }
  .pvst-rank-list > div { grid-template-columns: 1fr; gap: 4px; }
}

/* v1.2 beginner guidance for logs, security, and performance */
.pvst-source-help {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  padding: 13px 14px;
  margin: -4px 0 16px;
  color: #17416f;
  background: var(--pvst-info-bg);
  border: 1px solid #d7e7ff;
  border-radius: 11px;
}
.pvst-source-help::before {
  content: '?';
  display: grid;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  place-items: center;
  color: #fff;
  background: var(--pvst-primary);
  border-radius: 999px;
  font-weight: 900;
}
.pvst-source-help strong { display: block; white-space: nowrap; }
.pvst-source-help p { margin: 0; color: inherit; font-size: 13px; line-height: 1.5; }

.pvst-log-copy-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 8px;
  margin-bottom: 12px;
}
.pvst-log-copy-map > div {
  display: flex;
  gap: 8px;
  align-items: center;
  min-width: 0;
  padding: 11px;
  color: var(--pvst-muted);
  background: #f5f8fc;
  border: 1px solid var(--pvst-border);
  border-radius: 10px;
  font-size: 12px;
  line-height: 1.35;
}
.pvst-log-copy-map > div > span {
  display: grid;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  place-items: center;
  color: var(--pvst-primary);
  background: #eaf1ff;
  border-radius: 7px;
  font-weight: 900;
}
.pvst-log-copy-map > div.is-error {
  color: #8d1d14;
  background: var(--pvst-danger-bg);
  border-color: #f2c9c5;
  font-weight: 800;
}
.pvst-log-copy-map > div.is-error > span { color: #fff; background: var(--pvst-danger); }

.pvst-mode-cards {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: 9px;
}
.pvst-mode-cards label { position: relative; display: block; margin: 0; cursor: pointer; }
.pvst-mode-cards input { position: absolute; opacity: 0; pointer-events: none; }
.pvst-mode-cards span {
  display: block;
  min-height: 84px;
  padding: 13px;
  color: var(--pvst-text);
  background: #fff;
  border: 1px solid var(--pvst-border);
  border-radius: 11px;
}
.pvst-mode-cards strong { display: block; margin-bottom: 7px; font-size: 14px; line-height: 1.35; }
.pvst-mode-cards em {
  display: inline-flex;
  padding: 4px 7px;
  color: var(--pvst-primary);
  background: #eaf1ff;
  border-radius: 999px;
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
  line-height: 1.2;
}
.pvst-mode-cards input:checked + span { border-color: var(--pvst-primary); box-shadow: 0 0 0 2px rgba(31,103,232,.1); }
.pvst-mode-cards input:focus-visible + span { outline: 2px solid rgba(31,103,232,.3); outline-offset: 2px; }

@media (max-width: 620px) {
  .pvst-log-copy-map,
  .pvst-mode-cards { grid-template-columns: 1fr; }
  .pvst-source-help { display: block; }
  .pvst-source-help::before { margin-bottom: 8px; }
  .pvst-source-help strong { white-space: normal; }
}