:root {
  color-scheme: light;
  --bg: #f4f2ec;
  --surface: #ffffff;
  --surface-alt: #f8f6f1;
  --ink: #1e2328;
  --muted: #626973;
  --line: #d6d0c3;
  --teal: #0d766f;
  --teal-soft: #d9efea;
  --blue: #315f9c;
  --blue-soft: #e0ebf7;
  --amber: #9a6716;
  --amber-soft: #f3dfbd;
  --red: #a64236;
  --red-soft: #efd6d2;
  --green: #2f6f46;
  --green-soft: #dcebdc;
  --shadow: 0 18px 48px rgba(30, 35, 40, 0.1);
  --radius: 8px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(30, 35, 40, 0.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(30, 35, 40, 0.045) 1px, transparent 1px),
    var(--bg);
  background-size: 36px 36px;
  line-height: 1.5;
}

button,
select,
textarea {
  font: inherit;
}

button,
select {
  min-height: 40px;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px clamp(18px, 4vw, 48px);
  border-bottom: 1px solid rgba(30, 35, 40, 0.12);
  background: rgba(244, 242, 236, 0.92);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: #202832;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.76rem;
}

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

.topnav a {
  padding: 7px 10px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.88rem;
  text-decoration: none;
}

.topnav a:hover,
.topnav a:focus-visible {
  border-color: var(--line);
  outline: none;
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
}

main {
  width: 100%;
}

.workspace,
.section-band {
  width: min(1480px, calc(100% - clamp(28px, 6vw, 88px)));
  margin: 0 auto;
}

.workspace {
  min-height: calc(100vh - 72px);
  padding: clamp(24px, 4vw, 46px) 0 20px;
}

.workspace-head,
.section-head {
  display: grid;
  grid-template-columns: minmax(280px, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(20px, 4vw, 46px);
  align-items: end;
}

.workspace-head {
  margin-bottom: 18px;
}

.section-head {
  margin-bottom: 18px;
}

.workspace-head p,
.section-head p {
  margin: 0;
  color: #3c444d;
  font-size: clamp(0.98rem, 1.1vw, 1.12rem);
}

.eyebrow,
.panel-kicker {
  margin: 0 0 8px;
  color: var(--teal);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  margin-bottom: 0;
  font-size: clamp(2.4rem, 5.6vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.35rem, 2.4vw, 2.25rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.app-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1.05fr) minmax(330px, 0.95fr);
  gap: 14px;
}

.panel,
.section-band {
  border: 1px solid rgba(30, 35, 40, 0.13);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
}

.panel {
  min-width: 0;
  padding: 18px;
}

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

.panel-head h2 {
  font-size: 1.15rem;
}

.badge {
  flex: 0 0 auto;
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: #fff;
  font-size: 0.72rem;
  font-weight: 900;
  white-space: nowrap;
}

.badge.stable,
.badge.grade-strong {
  border-color: #b9d4c1;
  color: var(--green);
  background: var(--green-soft);
}

.badge.grade-usable {
  border-color: #e1c693;
  color: var(--amber);
  background: var(--amber-soft);
}

.badge.grade-weak {
  border-color: #dfb9b3;
  color: var(--red);
  background: var(--red-soft);
}

.badge.grade-blocked {
  border-color: #caa8a3;
  color: #7f281e;
  background: #f3d7d2;
}

textarea {
  width: 100%;
  min-height: 258px;
  resize: vertical;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #232832;
  background: var(--surface-alt);
  line-height: 1.55;
}

textarea:focus,
select:focus,
button:focus-visible {
  border-color: var(--teal);
  outline: 3px solid rgba(13, 118, 111, 0.15);
}

.control-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 12px;
}

label span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

button {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #252b32;
  background: #fff;
  font-weight: 850;
}

button:hover {
  border-color: var(--teal);
  background: var(--teal-soft);
}

.primary-button {
  border-color: #0b5f59;
  color: #fff;
  background: var(--teal);
}

.primary-button:hover {
  color: #fff;
  background: #095d57;
}

.output-box {
  min-height: 620px;
  margin: 0;
  padding: 14px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #f2f7f4;
  background: #1f262c;
  font: 0.82rem/1.55 "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  white-space: pre-wrap;
}

.spec-cards,
.score-grid {
  display: grid;
  gap: 10px;
}

.spec-card,
.score-card {
  min-width: 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-alt);
}

.spec-card span,
.score-card span {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-size: 0.73rem;
  font-weight: 900;
  text-transform: uppercase;
}

.spec-card p,
.score-card p {
  margin-bottom: 0;
  color: #3d444c;
  font-size: 0.9rem;
}

.spec-card ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 18px;
  color: #3d444c;
  font-size: 0.9rem;
}

.section-band {
  margin-top: clamp(18px, 3vw, 34px);
  padding: clamp(20px, 4vw, 38px);
}

.score-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.score-card strong {
  display: block;
  margin-bottom: 9px;
  font-size: 1.25rem;
}

.hero-score {
  grid-row: span 2;
  color: #fff;
  background: #202832;
}

.hero-score span,
.hero-score p {
  color: rgba(255, 255, 255, 0.78);
}

.hero-score strong {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 0.95;
}

.bar {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #dfd9cd;
}

.bar i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--teal);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 0.9rem;
}

th {
  color: #2d343c;
  background: #e9e4d8;
  font-size: 0.74rem;
  font-weight: 950;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: 0;
}

.export-band {
  margin-bottom: 42px;
}

.json-box {
  min-height: 360px;
}

@media (max-width: 1220px) {
  .workspace-head,
  .section-head,
  .app-grid {
    grid-template-columns: 1fr;
  }

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

  .output-box {
    min-height: 420px;
  }
}

@media (max-width: 720px) {
  .topbar {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .topnav {
    justify-content: flex-start;
  }

  .workspace,
  .section-band {
    width: min(100% - 28px, 1480px);
  }

  h1 {
    font-size: clamp(2rem, 13vw, 3.1rem);
  }

  .panel,
  .section-band {
    padding: 14px;
  }

  .panel-head {
    align-items: flex-start;
    flex-direction: column;
  }

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