/* ---- Harness Doctor landing page ---- */

:root {
  --bg: #0b0f10;
  --bg-soft: #0f1517;
  --panel: #131a1c;
  --panel-2: #161e21;
  --border: #233033;
  --text: #e6f0ee;
  --muted: #93a6a3;
  --dim: #6b7d7a;
  --accent: #3ddc97;
  --accent-2: #4fd1c5;
  --accent-3: #7af2c4;
  --warn: #f4c152;
  --err: #ff6b6b;
  --radius: 14px;
  --maxw: 1080px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Fira Code", ui-monospace, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
}

/* Background grid + glow */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 500px at 70% -10%, rgba(61, 220, 151, 0.12), transparent 60%),
    radial-gradient(700px 500px at 10% 10%, rgba(79, 209, 197, 0.08), transparent 55%),
    linear-gradient(var(--bg), var(--bg));
}
.bg-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 50% 0%, black, transparent 70%);
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  backdrop-filter: blur(8px);
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  color: var(--text);
  font-size: 1.05rem;
}
.nav__brand:hover {
  text-decoration: none;
}
.logo {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  color: var(--bg);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 24px rgba(61, 220, 151, 0.35);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  font-size: 0.92rem;
}
.nav__links a {
  color: var(--muted);
}
.nav__links a:hover {
  color: var(--text);
  text-decoration: none;
}
.nav__cta {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text) !important;
}
.nav__cta:hover {
  border-color: var(--accent);
}

/* Layout */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
}
.section__title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.section__sub {
  color: var(--muted);
  max-width: 620px;
  margin: 0 0 2.5rem;
}
.section__sub code,
.section p code {
  color: var(--accent-3);
  background: rgba(61, 220, 151, 0.08);
  padding: 0.05em 0.35em;
  border-radius: 5px;
}

/* Hero */
.hero {
  padding: 3.5rem 0 4.5rem;
  text-align: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
}
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}
.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 1.3rem 0 1rem;
}
.grad {
  background: linear-gradient(120deg, var(--accent), var(--accent-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lede {
  max-width: 640px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 1.12rem;
}
.hero__lede strong {
  color: var(--text);
}
.hero__note {
  color: var(--dim);
  font-size: 0.88rem;
  margin-top: 1.5rem;
}

/* Terminal */
.terminal {
  text-align: left;
  max-width: 640px;
  margin: 2.5rem auto 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  overflow: hidden;
  box-shadow:
    0 30px 80px -30px rgba(0, 0, 0, 0.8),
    0 0 0 1px rgba(61, 220, 151, 0.04);
}
.terminal__bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 0.9rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border);
}
.terminal__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #2c3a3d;
}
.terminal__dot:nth-child(1) {
  background: #ff5f57;
}
.terminal__dot:nth-child(2) {
  background: #febc2e;
}
.terminal__dot:nth-child(3) {
  background: #28c840;
}
.terminal__title {
  margin-left: 0.6rem;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.78rem;
}
.terminal__body {
  margin: 0;
  padding: 1.1rem 1.2rem 1.4rem;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}
.c-prompt {
  color: var(--accent);
}
.c-cmd {
  color: var(--text);
}
.c-ok {
  color: var(--accent);
}
.c-warn {
  color: var(--warn);
}
.c-err {
  color: var(--err);
}
.c-dim {
  color: var(--dim);
}
.c-score {
  color: var(--accent-3);
  font-weight: 700;
  font-size: 1.05em;
}

/* CTA row + copy button */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  align-items: center;
}
.cta-row--center {
  margin-top: 1.8rem;
}
.copy {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  padding: 0.7rem 1rem;
  border-radius: 11px;
  cursor: pointer;
  font: inherit;
  transition:
    border-color 0.15s,
    transform 0.05s;
}
.copy code {
  color: var(--accent-3);
}
.copy:hover {
  border-color: var(--accent);
}
.copy:active {
  transform: translateY(1px);
}
.copy__icon {
  color: var(--muted);
  font-size: 1.05rem;
}
.copy--block {
  width: 100%;
  justify-content: space-between;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.72rem 1.15rem;
  border-radius: 11px;
  font-weight: 600;
  font-size: 0.95rem;
  transition:
    transform 0.05s,
    background 0.15s,
    border-color 0.15s;
}
.btn:hover {
  text-decoration: none;
}
.btn:active {
  transform: translateY(1px);
}
.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
}
.btn--ghost:hover {
  border-color: var(--accent);
}
.btn--solid {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--bg);
  box-shadow: 0 10px 30px -10px rgba(61, 220, 151, 0.6);
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
  transition:
    transform 0.18s,
    border-color 0.18s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(61, 220, 151, 0.4);
}
.card__icon {
  font-size: 1.7rem;
  margin-bottom: 0.7rem;
}
.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.card code {
  color: var(--accent-3);
}

/* Strip */
.strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--border);
}
.strip__item {
  text-align: center;
  padding: 0.5rem;
}
.strip__num {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-3);
  letter-spacing: -0.02em;
}
.strip__label {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.step {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: var(--radius);
  padding: 1.4rem;
}
.step h3 {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}
.step__n {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  font-size: 0.85rem;
  background: rgba(61, 220, 151, 0.12);
  color: var(--accent);
  border: 1px solid rgba(61, 220, 151, 0.3);
}
.step p {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 1rem;
}
.step code {
  color: var(--accent-3);
}

/* Code blocks */
.section--ci {
  border-top: 1px solid var(--border);
}
.ci-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2.5rem;
  align-items: center;
}
.code-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  box-shadow: 0 20px 60px -30px rgba(0, 0, 0, 0.7);
}
.code-block--wide {
  max-width: 640px;
}
.code-block__bar {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--dim);
}
.code-block pre {
  margin: 0;
  padding: 1.1rem 1.2rem;
  font-family: var(--mono);
  font-size: 0.84rem;
  line-height: 1.65;
  overflow-x: auto;
  color: var(--text);
}
.y-key {
  color: var(--accent-2);
}
.y-kw {
  color: #c792ea;
}
.y-str {
  color: var(--accent-3);
}
.y-num {
  color: var(--warn);
}
.y-com {
  color: var(--dim);
}

/* Final CTA */
.final {
  text-align: center;
  padding: 5.5rem 0;
  border-top: 1px solid var(--border);
}
.final h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.6rem;
}
.final p {
  color: var(--muted);
  margin: 0;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.5rem;
  background: var(--bg-soft);
}
.footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}
.footer__inner p {
  margin: 0;
  color: var(--muted);
}
.footer__links {
  display: flex;
  gap: 1.3rem;
  font-size: 0.92rem;
}
.footer__links a {
  color: var(--muted);
}
.footer__links a:hover {
  color: var(--accent);
}
.footer__fine {
  max-width: var(--maxw);
  margin: 1.5rem auto 0;
  color: var(--dim);
  font-size: 0.8rem;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translate(-50%, 140%);
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
  padding: 0.7rem 1.2rem;
  border-radius: 10px;
  box-shadow: 0 12px 40px -10px rgba(61, 220, 151, 0.6);
  transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: 100;
}
.toast.show {
  transform: translate(-50%, 0);
}

/* Reveal on scroll */
.section,
.hero {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
.section.in,
.hero.in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .section,
  .hero {
    opacity: 1;
    transform: none;
    transition: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* Responsive */
@media (max-width: 860px) {
  .cards,
  .steps {
    grid-template-columns: 1fr;
  }
  .strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  .ci-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .nav__links a:not(.nav__cta) {
    display: none;
  }
}
@media (max-width: 480px) {
  .strip {
    grid-template-columns: 1fr;
  }
}