:root {
  --ink: #10231f;
  --ink-soft: #3a524c;
  --paper: #f4f7f2;
  --panel: rgba(255, 255, 255, 0.72);
  --line: rgba(16, 35, 31, 0.12);
  --accent: #0f8a6b;
  --accent-deep: #0b5c49;
  --warm: #c9782a;
  --ok: #1f8f5f;
  --warn: #b7791f;
  --shadow: 0 18px 50px rgba(16, 35, 31, 0.08);
  --radius: 22px;
  --font-display: Helvetica, Arial, sans-serif;
  --font-body: Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(15, 138, 107, 0.18), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(201, 120, 42, 0.14), transparent 55%),
    linear-gradient(180deg, #eef5f0 0%, var(--paper) 40%, #e8f0ea 100%);
}

body {
  overflow-x: hidden;
  font-family: Helvetica, Arial, sans-serif;
}

.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.55;
  animation: drift 14s ease-in-out infinite alternate;
}

.bg-orb-a {
  width: 280px;
  height: 280px;
  background: rgba(15, 138, 107, 0.25);
  top: 12%;
  right: -60px;
}

.bg-orb-b {
  width: 220px;
  height: 220px;
  background: rgba(201, 120, 42, 0.18);
  bottom: 10%;
  left: -40px;
  animation-delay: -4s;
}

@keyframes drift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(24px);
  }
}

.top,
main,
.footer {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 2rem));
  margin-inline: auto;
}

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.4rem 0 0.5rem;
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.brand-mark {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1;
}

.brand-sub {
  font-size: 0.82rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}

.top-meta {
  display: flex;
  gap: 0.5rem;
}

.pill {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
}

.pill.muted {
  color: var(--ink-soft);
  font-weight: 500;
}

.hero {
  padding: 1.8rem 0 1.2rem;
  animation: rise 0.7s ease both;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-deep);
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  max-width: 16ch;
}

.hero h1 em {
  font-style: normal;
  font-weight: 500;
  color: var(--accent-deep);
}

.lede {
  max-width: 54ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.55;
  margin: 0;
}

.scenario-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.scenario-card {
  text-align: left;
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(10px);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.scenario-card:hover {
  transform: translateY(-2px);
}

.scenario-card.active {
  border-color: rgba(15, 138, 107, 0.45);
  background: linear-gradient(160deg, rgba(15, 138, 107, 0.12), rgba(255, 255, 255, 0.8));
}

.scenario-kicker {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--warm);
  margin-bottom: 0.45rem;
}

.scenario-card strong {
  display: block;
  font-size: 1.35rem;
  margin-bottom: 0.35rem;
}

.scenario-card span:last-child {
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.4;
}

.workspace {
  display: grid;
  grid-template-columns: 1.45fr 0.9fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  padding: 1.2rem 1.3rem;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.panel h2,
.panel h3 {
  margin: 0 0 0.25rem;
  font-size: 1.15rem;
}

.panel-head p,
.tests-panel > .panel-head p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  justify-content: flex-end;
}

.brand-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-weight: 600;
}

.brand-toggle select,
.btn {
  font: inherit;
}

.brand-toggle select {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.7rem;
  background: white;
}

.btn {
  border: 0;
  border-radius: 999px;
  padding: 0.55rem 1rem;
  cursor: pointer;
  font-weight: 650;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn.primary {
  background: var(--ink);
  color: white;
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

.flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.flow-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  border-radius: 16px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.45);
  opacity: 0.45;
  transform: translateY(6px);
  transition: all 0.35s ease;
}

.flow-step.visible {
  opacity: 1;
  transform: translateY(0);
}

.flow-step.active {
  border-color: rgba(15, 138, 107, 0.35);
  background: rgba(15, 138, 107, 0.08);
  box-shadow: inset 0 0 0 1px rgba(15, 138, 107, 0.08);
}

.flow-step.done {
  opacity: 1;
}

.step-index {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(16, 35, 31, 0.08);
  color: var(--ink);
}

.flow-step.active .step-index,
.flow-step.done .step-index {
  background: var(--accent);
  color: white;
}

.step-actor {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin-bottom: 0.2rem;
}

.step-title {
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.step-desc {
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.45;
}

.progress-bar {
  margin-top: 1rem;
  height: 6px;
  border-radius: 999px;
  background: rgba(16, 35, 31, 0.08);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #2bb891);
  transition: width 0.35s ease;
}

.side {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.info-block {
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.info-block strong {
  display: block;
  color: var(--ink);
  margin-bottom: 0.35rem;
}

.info-block ul {
  margin: 0.4rem 0 0;
  padding-left: 1.1rem;
}

.action-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.action-list li {
  position: relative;
  padding: 0.55rem 0.7rem 0.55rem 2rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
  font-size: 0.9rem;
  line-height: 1.35;
}

.action-list li::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 0.85rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--warm);
}

.code-box {
  margin: 0;
  max-height: 280px;
  overflow: auto;
  background: #132521;
  color: #d7efe7;
  border-radius: 14px;
  padding: 0.9rem 1rem;
  font-size: 0.78rem;
  line-height: 1.45;
}

.tests-panel {
  margin-bottom: 1rem;
}

.test-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.test-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.9rem;
  background: rgba(255, 255, 255, 0.55);
}

.test-card .name {
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.test-card .brand {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: rgba(15, 138, 107, 0.12);
  color: var(--accent-deep);
  margin-bottom: 0.45rem;
}

.test-card .expect {
  color: var(--ink-soft);
  font-size: 0.85rem;
  line-height: 1.4;
}

.arch {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 0.8rem 0 0.6rem;
}

.arch-node {
  border: 1px solid var(--line);
  background: white;
  border-radius: 14px;
  padding: 0.75rem 0.9rem;
  min-width: 140px;
  text-align: center;
  font-weight: 700;
  font-size: 0.92rem;
}

.arch-node small {
  display: block;
  margin-top: 0.2rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.arch-node.accent {
  background: linear-gradient(160deg, rgba(15, 138, 107, 0.16), white);
  border-color: rgba(15, 138, 107, 0.3);
}

.arch-arrow {
  color: var(--ink-soft);
  font-weight: 700;
}

.footnote {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0 2rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .workspace,
  .scenario-picker,
  .test-grid {
    grid-template-columns: 1fr;
  }

  .panel-head {
    flex-direction: column;
  }

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

  .hero h1 {
    max-width: none;
  }
}