:root {
  --bg: #f3efe6;
  --bg-accent: #f9f7f2;
  --surface: rgba(255, 255, 255, 0.92);
  --surface-strong: #ffffff;
  --surface-muted: #f4f5f9;
  --line: #ddd6c8;
  --text: #171a22;
  --muted: #6e7482;
  --muted-2: #8d93a1;
  --green: #009f81;
  --green-soft: #ddf5ef;
  --amber: #df8f1b;
  --amber-soft: #fff2df;
  --red: #c63d55;
  --red-soft: #fdecef;
  --blue: #0b6bcb;
  --blue-soft: #e9f4ff;
  --purple: #5f3aa7;
  --shadow: 0 18px 40px rgba(33, 38, 45, 0.08);
  --shadow-soft: 0 10px 24px rgba(33, 38, 45, 0.05);
  --radius-xl: 28px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --mono: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: Inter, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(0, 159, 129, 0.09), transparent 28%),
    radial-gradient(circle at top right, rgba(95, 58, 167, 0.08), transparent 24%),
    linear-gradient(180deg, #f7f3ea 0%, #f1ede4 100%);
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

body {
  line-height: 1.45;
}

.site-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 28px;
  padding: 28px;
  max-width: 1480px;
  margin: 0 auto;
}

.sidebar {
  position: sticky;
  top: 24px;
  align-self: start;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius-xl);
  background: rgba(255, 251, 244, 0.85);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(23, 26, 34, 0.06);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sidebar h1,
.content h1 {
  margin: 14px 0 10px;
  font-size: clamp(28px, 4vw, 54px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.sidebar p.lead,
.page-intro p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.nav-section {
  margin-top: 22px;
}

.nav-label {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--muted-2);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-list {
  display: grid;
  gap: 8px;
}

.nav-list a {
  display: block;
  padding: 11px 12px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--text);
  font-weight: 600;
}

.nav-list a:hover,
.nav-list a.active {
  background: rgba(255, 255, 255, 0.88);
  border-color: rgba(95, 58, 167, 0.14);
  text-decoration: none;
}

.helper-card {
  margin-top: 22px;
  padding: 16px;
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid #d7e5f6;
}

.helper-card h3,
.stack-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.helper-card p,
.helper-card li,
.stack-card p,
.stack-card li {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.helper-card ul,
.stack-card ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.content {
  display: grid;
  gap: 24px;
}

.page-intro {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
}

.page-intro h2 {
  margin: 12px 0 8px;
  font-size: clamp(28px, 3vw, 40px);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 560px) minmax(320px, 1fr);
  gap: 22px;
  align-items: start;
}

.popup-frame {
  padding: 18px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.62));
  border: 1px solid rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.popup-window {
  width: 100%;
  max-width: 470px;
  min-height: 640px;
  margin: 0 auto;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid #e1dfd7;
  background: var(--surface-muted);
  box-shadow: 0 24px 48px rgba(23, 26, 34, 0.08);
}

.popup-header {
  padding: 14px 16px 12px;
  border-bottom: 1px solid #e0e1e9;
  background: #fffdfa;
}

.title-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.title {
  font-size: 15px;
  font-weight: 700;
}

.title span {
  color: var(--muted-2);
  font-weight: 500;
}

.version {
  font-size: 12px;
  color: var(--muted-2);
}

.state-chip-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.chip.green {
  background: var(--green-soft);
  color: #0f6e5c;
}

.chip.amber {
  background: var(--amber-soft);
  color: #986019;
}

.chip.red {
  background: var(--red-soft);
  color: #a4324c;
}

.chip.blue {
  background: var(--blue-soft);
  color: #0e61b2;
}

.popup-body {
  padding: 14px 16px 16px;
  display: grid;
  gap: 12px;
}

.summary-card,
.section-card,
.footer-bar {
  border-radius: 16px;
  border: 1px solid #e0e1e9;
  background: rgba(255, 255, 255, 0.94);
}

.summary-card {
  padding: 16px;
  box-shadow: var(--shadow-soft);
}

.summary-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.summary-title {
  margin: 0;
  font-size: 12px;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.summary-label {
  margin: 4px 0 0;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.summary-text {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.score-pill {
  min-width: 96px;
  text-align: center;
  padding: 10px 12px;
  border-radius: 14px;
  font-size: 12px;
  font-weight: 800;
}

.score-pill.green {
  background: var(--green-soft);
  color: #0f6e5c;
}

.score-pill.amber {
  background: var(--amber-soft);
  color: #986019;
}

.score-pill.red {
  background: var(--red-soft);
  color: #a4324c;
}

.summary-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.stat {
  padding: 10px;
  border-radius: 12px;
  background: #faf8f5;
  border: 1px solid #eeebe4;
}

.stat-label {
  display: block;
  font-size: 11px;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-value {
  display: block;
  margin-top: 5px;
  font-size: 18px;
  font-weight: 750;
}

.section-card {
  padding: 14px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.section-title {
  margin: 0;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted-2);
}

.text-link {
  font-size: 12px;
  font-weight: 700;
}

.chain-list,
.insight-list {
  display: grid;
  gap: 8px;
}

.chain-step {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid #e8e8ef;
}

.chain-step.final {
  border-color: #cfe9e3;
  background: #fcfffe;
}

.chain-step.error {
  border-color: #f3d2db;
  background: #fffafb;
}

.status-box {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.status-box.green {
  background: var(--green);
}

.status-box.amber {
  background: var(--amber);
}

.status-box.red {
  background: var(--red);
}

.step-url {
  font-size: 13px;
  font-weight: 700;
}

.step-meta {
  margin-top: 2px;
  font-size: 12px;
  color: var(--muted);
}

.pill {
  padding: 4px 8px;
  border-radius: 999px;
  background: #f4f5f9;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.insight-card {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid #e8e8ef;
}

.insight-card.warning {
  background: #fffaf3;
  border-color: #f1debf;
}

.insight-card.error {
  background: #fff7f8;
  border-color: #f3d4db;
}

.insight-card.info {
  background: #f5faff;
  border-color: #d8e8f8;
}

.insight-card h4 {
  margin: 0 0 6px;
  font-size: 14px;
}

.insight-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.insight-meta {
  display: grid;
  gap: 5px;
  margin-top: 10px;
  font-size: 12px;
  color: var(--text);
}

.semrush-card {
  padding: 14px;
  border-radius: 14px;
  border: 1px solid #d9e7f5;
  background: linear-gradient(180deg, #f4faff 0%, #edf6ff 100%);
}

.semrush-card h4 {
  margin: 0 0 6px;
  font-size: 14px;
}

.semrush-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.semrush-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  margin-top: 12px;
}

.button-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid #dadde6;
  background: #fff;
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
}

.button.secondary {
  border-color: #d7e5f6;
  background: #fff;
  color: var(--blue);
}

.button.ghost {
  background: #f4f5f9;
}

.footer-bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
}

.footer-copy {
  color: var(--muted);
  font-size: 12px;
}

.stack-card {
  padding: 18px;
  border: 1px solid rgba(221, 214, 200, 0.8);
  border-radius: 18px;
  background: rgba(255, 252, 247, 0.82);
}

.stack-card + .stack-card {
  margin-top: 14px;
}

.stack-card table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 14px;
}

.stack-card th,
.stack-card td {
  text-align: left;
  vertical-align: top;
  padding: 10px 0;
  border-bottom: 1px solid #ece6db;
}

.stack-card th {
  color: var(--muted-2);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.note {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
}

.state-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
}

.state-card {
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(221, 214, 200, 0.95);
  box-shadow: var(--shadow-soft);
}

.state-card h3 {
  margin: 10px 0 6px;
  font-size: 18px;
}

.state-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.loading-bar {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: #e9edf4;
}

.loading-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  width: 38%;
  border-radius: inherit;
  background: linear-gradient(90deg, #77d2be, #009f81);
  animation: slide 1.2s infinite ease-in-out;
}

@keyframes slide {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(320%);
  }
}

.mono {
  font-family: var(--mono);
  font-size: 12px;
}

@media (max-width: 1120px) {
  .site-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .panel-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-shell {
    padding: 16px;
    gap: 16px;
  }

  .page-intro {
    flex-direction: column;
    align-items: start;
  }

  .summary-stats {
    grid-template-columns: 1fr;
  }

  .footer-bar,
  .summary-top,
  .semrush-row {
    flex-direction: column;
  }
}