:root {
  --perf-bg: #f4f7fb;
  --perf-surface: rgba(255, 255, 255, 0.9);
  --perf-surface-strong: #ffffff;
  --perf-line: rgba(15, 23, 42, 0.12);
  --perf-line-strong: rgba(15, 23, 42, 0.18);
  --perf-ink: #121826;
  --perf-muted: #64748b;
  --perf-soft: #eef3f8;
  --perf-red: #dc1117;
  --perf-blue: #0ea5e9;
  --perf-green: #12a36b;
  --perf-amber: #d97706;
  --perf-violet: #6956d9;
  --perf-shadow: 0 20px 55px rgba(15, 23, 42, 0.13);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--perf-bg);
}

body.performance-page {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(135deg, rgba(220, 17, 23, 0.08) 0%, transparent 26%),
    linear-gradient(160deg, transparent 0%, rgba(14, 165, 233, 0.12) 48%, rgba(18, 163, 107, 0.1) 100%),
    var(--perf-bg);
  color: var(--perf-ink);
  font-family: Inter, "SF Pro Display", "Segoe UI", system-ui, -apple-system, sans-serif;
  letter-spacing: 0;
}

body.performance-dark {
  --perf-bg: #0c111b;
  --perf-surface: rgba(17, 24, 39, 0.86);
  --perf-surface-strong: #111827;
  --perf-line: rgba(226, 232, 240, 0.13);
  --perf-line-strong: rgba(226, 232, 240, 0.22);
  --perf-ink: #f8fafc;
  --perf-muted: #9ca3af;
  --perf-soft: rgba(30, 41, 59, 0.72);
  --perf-shadow: 0 24px 65px rgba(0, 0, 0, 0.42);
  color-scheme: dark;
}

button,
select,
a {
  font: inherit;
}

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

.performance-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: max(22px, env(safe-area-inset-top)) 0 max(28px, env(safe-area-inset-bottom));
}

.performance-hero {
  display: grid;
  grid-template-columns: minmax(150px, 220px) minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  min-height: 104px;
  margin-bottom: 18px;
  padding: 18px;
  border: 1px solid var(--perf-line);
  border-radius: 8px;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.88), rgba(255, 255, 255, 0.58)),
    linear-gradient(90deg, rgba(220, 17, 23, 0.12), rgba(14, 165, 233, 0.12));
  box-shadow: var(--perf-shadow);
  overflow: hidden;
}

body.performance-dark .performance-hero {
  background:
    linear-gradient(120deg, rgba(15, 23, 42, 0.9), rgba(17, 24, 39, 0.7)),
    linear-gradient(90deg, rgba(220, 17, 23, 0.18), rgba(14, 165, 233, 0.16));
}

.brand-lockup {
  display: flex;
  align-items: center;
  min-width: 0;
  text-decoration: none;
}

.brand-logo {
  width: min(100%, 206px);
  height: auto;
  display: block;
  object-fit: contain;
}

.brand-logo-dark {
  display: none;
}

body.performance-dark .brand-logo-light {
  display: none;
}

body.performance-dark .brand-logo-dark {
  display: block;
}

.hero-title {
  min-width: 0;
}

.hero-title span,
.panel-head span,
.comparison-head span,
.period-picker span,
.comparison-selectors span {
  display: block;
  color: var(--perf-muted);
  font-size: 11px;
  font-weight: 800;
  line-height: 1.2;
  text-transform: uppercase;
}

.hero-title h1 {
  margin: 5px 0 0;
  color: var(--perf-ink);
  font-size: clamp(27px, 4.4vw, 52px);
  line-height: 0.96;
  font-weight: 950;
  letter-spacing: 0;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  min-width: max-content;
}

.icon-btn,
.home-link {
  min-height: 42px;
  border: 1px solid var(--perf-line-strong);
  border-radius: 8px;
  background: var(--perf-surface);
  color: var(--perf-ink);
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}

.icon-btn {
  width: 42px;
  padding: 0;
  cursor: pointer;
  font-weight: 950;
}

.home-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 15px;
  text-decoration: none;
  font-size: 12px;
  font-weight: 850;
}

.status-panel {
  margin-bottom: 14px;
  padding: 15px 17px;
  border: 1px solid var(--perf-line);
  border-left: 4px solid var(--perf-red);
  border-radius: 8px;
  background: var(--perf-surface);
  color: var(--perf-muted);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.08);
  font-size: 14px;
  font-weight: 720;
}

.status-panel.success {
  border-left-color: var(--perf-green);
}

.status-panel.error {
  border-left-color: var(--perf-red);
  color: #b91c1c;
}

body.performance-dark .status-panel.error {
  color: #fda4af;
}

.performance-app {
  display: grid;
  gap: 14px;
}

.control-band,
.score-focus,
.panel,
.comparison-panel {
  border: 1px solid var(--perf-line);
  border-radius: 8px;
  background: var(--perf-surface);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.09);
}

.control-band {
  display: grid;
  grid-template-columns: minmax(220px, 360px) 1fr;
  align-items: center;
  gap: 14px;
  padding: 14px;
}

.period-picker,
.comparison-selectors label {
  display: grid;
  gap: 7px;
}

select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--perf-line-strong);
  border-radius: 8px;
  background: var(--perf-surface-strong);
  color: var(--perf-ink);
  padding: 0 13px;
  font-weight: 820;
  outline: none;
}

select:focus-visible,
.icon-btn:focus-visible,
.home-link:focus-visible {
  border-color: var(--perf-blue);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.22);
}

.period-meta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 14px;
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(18, 163, 107, 0.13), rgba(14, 165, 233, 0.12));
  color: var(--perf-ink);
}

.period-meta span {
  color: var(--perf-green);
  font-size: 12px;
  font-weight: 900;
}

.period-meta strong {
  font-size: 13px;
  font-weight: 900;
}

.score-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(0, 1.15fr);
  gap: 14px;
}

.score-focus {
  min-height: 278px;
  padding: 20px;
  background:
    linear-gradient(145deg, rgba(220, 17, 23, 0.13), rgba(14, 165, 233, 0.12)),
    var(--perf-surface-strong);
}

body.performance-dark .score-focus {
  background:
    linear-gradient(145deg, rgba(220, 17, 23, 0.2), rgba(14, 165, 233, 0.14)),
    var(--perf-surface-strong);
}

.score-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--perf-muted);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.score-note {
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(220, 17, 23, 0.1);
  color: var(--perf-red);
}

.score-number {
  margin: 22px 0 12px;
  font-size: clamp(62px, 11vw, 104px);
  line-height: 0.86;
  font-weight: 950;
  letter-spacing: 0;
}

.score-number small {
  font-size: 24px;
  color: var(--perf-muted);
}

.score-meter {
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(100, 116, 139, 0.18);
}

.score-meter span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--perf-red), var(--perf-amber), var(--perf-green));
}

.score-foot {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
}

.score-foot div,
.metric-card,
.benchmark-item {
  border: 1px solid var(--perf-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.58);
}

body.performance-dark .score-foot div,
body.performance-dark .metric-card,
body.performance-dark .benchmark-item {
  background: rgba(15, 23, 42, 0.44);
}

.score-foot div {
  min-width: 0;
  padding: 10px;
}

.score-foot span,
.metric-card span,
.benchmark-item span {
  display: block;
  color: var(--perf-muted);
  font-size: 11px;
  font-weight: 760;
}

.score-foot strong,
.metric-card strong,
.benchmark-item strong {
  display: block;
  margin-top: 4px;
  color: var(--perf-ink);
  font-size: 18px;
  font-weight: 930;
  line-height: 1.1;
}

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

.metric-card {
  min-height: 128px;
  padding: 14px;
}

.metric-card i {
  display: block;
  width: 36px;
  height: 4px;
  margin-top: 14px;
  border-radius: 999px;
  background: var(--metric-color, var(--perf-blue));
}

.analysis-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.74fr);
  gap: 14px;
}

.panel {
  min-width: 0;
  padding: 16px;
}

.panel-head,
.comparison-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
}

.panel-head strong {
  color: var(--perf-muted);
  font-size: 12px;
  font-weight: 850;
}

.score-parts {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.score-part {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 74px;
  align-items: center;
  gap: 12px;
}

.score-part strong {
  min-width: 0;
  color: var(--perf-ink);
  font-size: 13px;
  font-weight: 900;
}

.part-meter {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(100, 116, 139, 0.16);
}

.part-meter span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: var(--part-color, var(--perf-blue));
}

.score-part em {
  color: var(--perf-muted);
  font-size: 12px;
  font-style: normal;
  font-weight: 850;
  text-align: right;
}

.benchmark-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.benchmark-item {
  min-height: 86px;
  padding: 12px;
}

.comparison-panel {
  padding: 16px;
}

.comparison-head h2 {
  margin: 5px 0 0;
  color: var(--perf-ink);
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1;
  font-weight: 950;
  letter-spacing: 0;
}

.comparison-selectors {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 10px;
  width: min(520px, 100%);
}

.comparison-result {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  margin-top: 16px;
  padding: 15px;
  border: 1px solid var(--perf-line);
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(14, 165, 233, 0.1), rgba(18, 163, 107, 0.1));
}

.comparison-result h3 {
  margin: 0;
  color: var(--perf-ink);
  font-size: 19px;
  font-weight: 940;
}

.comparison-result p {
  margin: 5px 0 0;
  color: var(--perf-muted);
  font-size: 13px;
  font-weight: 720;
  line-height: 1.4;
}

.delta-pill {
  min-width: 98px;
  padding: 10px 12px;
  border-radius: 8px;
  text-align: center;
  font-size: 18px;
  font-weight: 950;
}

.delta-pill.good {
  background: rgba(18, 163, 107, 0.13);
  color: var(--perf-green);
}

.delta-pill.bad {
  background: rgba(220, 17, 23, 0.12);
  color: var(--perf-red);
}

.delta-pill.neutral {
  background: rgba(100, 116, 139, 0.13);
  color: var(--perf-muted);
}

.comparison-insights {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(280px, 1.08fr);
  gap: 12px;
  margin-top: 12px;
}

.insight-summary,
.insight-answers {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--perf-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.54);
}

body.performance-dark .insight-summary,
body.performance-dark .insight-answers {
  background: rgba(15, 23, 42, 0.42);
}

.insight-summary h3,
.insight-answers h3 {
  margin: 0 0 10px;
  color: var(--perf-ink);
  font-size: 15px;
  font-weight: 930;
  line-height: 1.15;
}

.insight-summary p,
.insight-answer p {
  margin: 0;
  color: var(--perf-muted);
  font-size: 12px;
  font-weight: 720;
  line-height: 1.45;
}

.insight-drivers {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.insight-driver {
  display: grid;
  grid-template-columns: minmax(96px, 0.42fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: 9px;
  min-height: 30px;
  color: var(--perf-ink);
  font-size: 12px;
  font-weight: 850;
}

.insight-driver span:first-child {
  color: var(--perf-muted);
}

.insight-driver i {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(100, 116, 139, 0.16);
}

.insight-driver b {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: var(--driver-color, var(--perf-blue));
}

.insight-driver strong.good {
  color: var(--perf-green);
}

.insight-driver strong.bad {
  color: var(--perf-red);
}

.insight-answer {
  padding: 9px 0;
  border-top: 1px solid var(--perf-line);
}

.insight-answer:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.insight-answer strong {
  display: block;
  margin-bottom: 4px;
  color: var(--perf-ink);
  font-size: 12px;
  font-weight: 920;
}

.comparison-bars {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.comparison-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--perf-line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.5);
}

body.performance-dark .comparison-card {
  background: rgba(15, 23, 42, 0.42);
}

.comparison-card header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 11px;
  color: var(--perf-muted);
  font-size: 12px;
  font-weight: 850;
}

.comparison-line {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr) 70px;
  align-items: center;
  gap: 10px;
  min-height: 30px;
  color: var(--perf-ink);
  font-size: 12px;
  font-weight: 800;
}

.comparison-line span:first-child {
  color: var(--perf-muted);
}

.comparison-line i {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(100, 116, 139, 0.16);
}

.comparison-line b {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: var(--line-color, var(--perf-blue));
}

.empty-state {
  padding: 34px 18px;
  border: 1px dashed var(--perf-line-strong);
  border-radius: 8px;
  background: var(--perf-surface);
  color: var(--perf-muted);
  text-align: center;
  font-weight: 760;
}

@media (max-width: 900px) {
  .performance-shell {
    width: min(100% - 24px, 760px);
  }

  .performance-hero,
  .score-layout,
  .analysis-layout,
  .comparison-result {
    grid-template-columns: 1fr;
  }

  .comparison-head {
    flex-direction: column;
    align-items: stretch;
  }

  .performance-hero {
    align-items: start;
  }

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

  .control-band {
    grid-template-columns: 1fr;
  }

  .period-meta {
    justify-self: stretch;
    justify-content: space-between;
  }

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

  .comparison-selectors {
    width: 100%;
  }
}

@media (max-width: 560px) {
  body.performance-page {
    background:
      linear-gradient(150deg, rgba(220, 17, 23, 0.1), transparent 38%),
      linear-gradient(180deg, rgba(14, 165, 233, 0.11), rgba(18, 163, 107, 0.08)),
      var(--perf-bg);
  }

  .performance-shell {
    width: 100%;
    padding: max(12px, env(safe-area-inset-top)) 10px max(18px, env(safe-area-inset-bottom));
  }

  .performance-hero {
    min-height: 0;
    padding: 14px;
    gap: 12px;
  }

  .brand-logo {
    width: min(52vw, 190px);
  }

  .hero-title h1 {
    font-size: 31px;
    line-height: 0.98;
  }

  .hero-actions {
    width: 100%;
  }

  .home-link {
    flex: 1;
  }

  .status-panel,
  .control-band,
  .score-focus,
  .panel,
  .comparison-panel {
    padding: 13px;
  }

  .metric-grid,
  .benchmark-grid,
  .comparison-insights,
  .comparison-selectors,
  .comparison-bars {
    grid-template-columns: 1fr;
  }

  .metric-card {
    min-height: 106px;
  }

  .score-focus {
    min-height: 0;
  }

  .score-number {
    font-size: 78px;
  }

  .score-foot {
    grid-template-columns: 1fr;
  }

  .score-part {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .score-part em {
    text-align: left;
  }

  .comparison-result {
    align-items: stretch;
  }

  .delta-pill {
    min-width: 0;
  }

  .comparison-line {
    grid-template-columns: 98px minmax(0, 1fr) 56px;
  }

  .insight-driver {
    grid-template-columns: 92px minmax(0, 1fr) 58px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .score-focus,
  .metric-card,
  .panel,
  .comparison-panel {
    animation: perfRise 420ms ease both;
  }

  .metric-card:nth-child(2),
  .panel:nth-child(2) {
    animation-delay: 70ms;
  }

  .metric-card:nth-child(3),
  .comparison-panel {
    animation-delay: 120ms;
  }

  @keyframes perfRise {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}