/*
 * Landing - Landing page and ping animation
 * Full-page marketing layout with hero, steps, use cases, and features
 */

/* Let landing page use full width */
body:has(.landing) > main.container {
  max-width: 100%;
  padding: 0;
}

body:has(.landing) > header.container {
  display: none;
}

/* --- Hero Section --- */

.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--pico-spacing);
}

.hero-content {
  max-width: 600px;
}

.hero-visual {
  margin-bottom: var(--pico-spacing);
}

.hero h1 {
  font-size: clamp(3rem, 12vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.25em;
  color: var(--pico-primary);
}

.hero .tagline {
  font-size: clamp(1.25rem, 4vw, 1.5rem);
  color: var(--pico-muted-color);
  margin-bottom: var(--pico-spacing);
}

.hero .subtitle {
  color: var(--pico-secondary);
  margin-bottom: calc(var(--pico-spacing) * 2);
}

.hero form {
  display: inline-block;
}

/* --- Sections --- */

.landing section {
  padding: calc(var(--pico-spacing) * 4) var(--pico-spacing);
}

.landing section:nth-child(even) {
  background: var(--pico-card-sectioning-background-color);
}

.section-header {
  text-align: center;
  margin-bottom: calc(var(--pico-spacing) * 2);
}

.section-header h2 {
  color: var(--pico-primary);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* --- Steps (How it works) --- */

.steps {
  display: flex;
  justify-content: center;
  gap: calc(var(--pico-spacing) * 2);
  max-width: 900px;
  margin: 0 auto;
}

.step {
  flex: 1;
  max-width: 260px;
  text-align: center;
}

.step-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--pico-spacing);
  display: grid;
  place-items: center;
  border: 2px solid var(--pico-muted-border-color);
  border-radius: 50%;
  color: var(--pico-primary);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.step:hover .step-icon {
  border-color: var(--pico-primary);
  box-shadow: 0 0 20px var(--pico-primary-focus);
}

.step-icon svg {
  width: 36px;
  height: 36px;
}

.step h3 {
  font-size: 1rem;
  margin-bottom: 0.5em;
  color: var(--pico-color);
}

.step p {
  font-size: 0.9rem;
  color: var(--pico-muted-color);
  margin: 0;
}

@media (max-width: 700px) {
  .steps {
    flex-direction: column;
    align-items: center;
  }
}

/* --- Use cases grid --- */

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--pico-spacing);
  max-width: 960px;
  margin: 0 auto;
}

.use-case {
  padding: calc(var(--pico-spacing) * 1.5);
  margin: 0;
}

.use-case-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--pico-spacing);
  color: var(--pico-primary);
}

.use-case-icon svg {
  width: 100%;
  height: 100%;
}

.use-case h3 {
  font-size: 1rem;
  color: var(--pico-primary);
  margin-bottom: 0.5em;
}

.use-case p {
  font-size: 0.9rem;
  color: var(--pico-muted-color);
  margin: 0;
}

/* --- Features --- */

.features-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: calc(var(--pico-spacing) * 2);
  max-width: 800px;
  margin: 0 auto;
}

.feature {
  text-align: center;
  min-width: 140px;
}

.feature-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto calc(var(--pico-spacing) * 0.5);
  color: var(--pico-primary);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature p {
  font-size: 0.9rem;
  color: var(--pico-muted-color);
  margin: 0;
}

/* --- Final CTA --- */

.final-cta {
  text-align: center;
}

.final-cta p {
  font-size: 1.25rem;
  color: var(--pico-muted-color);
  margin-bottom: var(--pico-spacing);
}

.final-cta form {
  display: inline-block;
}

/* --- Footer --- */

body:has(.landing) > footer.container {
  display: none;
}

.landing-footer {
  text-align: center;
  padding: calc(var(--pico-spacing) * 2) var(--pico-spacing);
  margin-top: calc(var(--pico-spacing) * 2);
}

.landing-footer p {
  font-size: 0.875rem;
  color: var(--pico-muted-color);
  margin: 0;
}

.landing-footer svg {
  vertical-align: -3px;
}

.landing-footer a {
  color: var(--pico-muted-color);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.landing-footer a:hover {
  color: var(--pico-primary);
}

/* --- Ping Animation --- */

.ping-visual {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 0 auto;
  overflow: visible;
}

@media (min-width: 700px) {
  .ping-visual {
    width: 200px;
    height: 200px;
  }
}

.ping-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  background: var(--pico-primary);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--pico-primary-focus);
}

.ping-ring {
  position: absolute;
  inset: 0;
  border: 2px solid var(--pico-primary);
  border-radius: 50%;
  opacity: 0;
  animation: ping 2.5s ease-out infinite;
}

.ping-ring:nth-child(2) { animation-delay: 0.5s; }
.ping-ring:nth-child(3) { animation-delay: 1s; }

@keyframes ping {
  0% {
    transform: scale(0.2);
    opacity: 0.8;
  }
  100% {
    transform: scale(1);
    opacity: 0;
  }
}