/* Cobot marketing — self-contained, no external fonts or assets */

:root {
  --cobalt: #0047ab;
  --cobalt-deep: #003380;
  --ink: #12161c;
  --ink-soft: #3a4450;
  --paper: #e8edf3;
  --paper-2: #f4f7fb;
  --line: #c5d0de;
  --ok-bg: #dce8f8;
  --warn: #5c4a12;
  --warn-bg: #f3ebd2;
  --radius: 2px;
  --max: 68rem;
  --focus: 0 0 0 3px #fff, 0 0 0 6px var(--cobalt);
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.55;
  color: var(--ink);
  background:
    radial-gradient(120% 80% at 100% -10%, rgba(0, 71, 171, 0.14), transparent 55%),
    radial-gradient(90% 60% at -10% 40%, rgba(0, 51, 128, 0.08), transparent 50%),
    linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 45%, #dfe6ef 100%);
  background-attachment: fixed;
}

/* Prefer local system faces; stack avoids Inter/Roboto/Arial-only defaults where possible */
@supports (font-family: "SF Pro Text") {
  body {
    font-family: "SF Pro Text", "IBM Plex Sans", "Segoe UI", "Helvetica Neue", sans-serif;
  }
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  padding: 0.5rem 0.85rem;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  transform: translateY(-160%);
  z-index: 20;
}

.skip:focus {
  transform: translateY(0);
  outline: none;
  box-shadow: var(--focus);
}

.site-header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.25rem 1.5rem 0;
}

.brand {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: lowercase;
  color: var(--cobalt);
}

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1.5rem 3rem;
  display: grid;
  gap: 2rem;
  align-items: center;
  min-height: min(88vh, 52rem);
}

.hero-copy h1 {
  margin: 0 0 0.65rem;
  font-size: clamp(3.2rem, 10vw, 5.75rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  font-weight: 800;
  color: var(--cobalt);
}

.lede {
  margin: 0;
  max-width: 34rem;
  font-size: clamp(1.1rem, 2.4vw, 1.35rem);
  color: var(--ink);
}

.hero-note {
  margin: 1.15rem 0 0;
  max-width: 32rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.hero-visual {
  margin: 0;
  display: grid;
  place-items: center;
}

.device-mock {
  width: min(100%, 26rem);
  height: auto;
  display: block;
  filter: drop-shadow(0 28px 48px rgba(18, 22, 28, 0.22));
  animation: float-y 6.5s ease-in-out infinite;
}

@keyframes float-y {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse-ring {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 0.9;
  }
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.75rem 1.5rem;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.55rem, 3vw, 2rem);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.section-lede {
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
  max-width: 36rem;
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.feature-list li {
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.feature-list li:last-child {
  border-bottom: 0;
}

.feature-list strong {
  color: var(--cobalt-deep);
  font-size: 1.02rem;
}

.feature-list span {
  color: var(--ink-soft);
}

.dev-note {
  margin: 1.5rem 0 0;
  padding: 0.85rem 1rem;
  background: var(--warn-bg);
  color: var(--warn);
  border-left: 3px solid #b8942e;
  max-width: 42rem;
  font-size: 0.95rem;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: start;
}

.step-num {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--cobalt);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  animation: pulse-ring 4s ease-in-out infinite;
}

.steps p {
  margin: 0.25rem 0 0;
  color: var(--ink-soft);
}

.hw-list {
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.hw-list > div {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.75rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}

.hw-list dt {
  margin: 0;
  font-weight: 700;
  color: var(--cobalt-deep);
}

.hw-list dd {
  margin: 0;
  color: var(--ink-soft);
}

.fine {
  margin: 1.25rem 0 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
  max-width: 40rem;
}

.privacy-grid {
  display: grid;
  gap: 1.5rem;
}

.privacy-grid h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--cobalt-deep);
}

.privacy-grid ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--ink-soft);
}

.privacy-grid li + li {
  margin-top: 0.35rem;
}

.status p {
  margin: 0;
  max-width: 42rem;
  color: var(--ink-soft);
}

.badge {
  display: inline-block;
  margin-right: 0.5rem;
  padding: 0.2rem 0.55rem;
  background: var(--ok-bg);
  color: var(--cobalt-deep);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  vertical-align: 0.1em;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

code {
  font-family: "SF Mono", "Menlo", "Consolas", "Liberation Mono", monospace;
  font-size: 0.92em;
  background: rgba(0, 71, 171, 0.08);
  padding: 0.08em 0.35em;
  border-radius: var(--radius);
  color: var(--cobalt-deep);
}

a:focus-visible,
.skip:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

@media (min-width: 860px) {
  .hero {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 2.5rem;
    padding-top: 2.5rem;
  }

  .privacy-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .hw-list > div {
    grid-template-columns: 8rem 1fr;
  }
}

@media (max-width: 859px) {
  .hero {
    min-height: auto;
    padding-bottom: 2rem;
  }

  .hero-visual {
    order: -1;
  }

  .device-mock {
    width: min(100%, 18rem);
  }

  .hw-list > div {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .device-mock,
  .step-num {
    animation: none;
  }
}