/* ==========================================================================
   TriPoint Innovations — Components
   Signature element: a slow radar sweep over faint topographic contour
   lines, standing in for "a signal moving across remote terrain." Used
   once, large, in the hero — not scattered throughout the site.
   ========================================================================== */

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

.hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-3xl) 0 var(--space-2xl);
  background: var(--bg-primary);
}

.hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xl);
  align-items: center;
}
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
}

.hero__copy .eyebrow { margin-bottom: var(--space-md); }
.hero__copy h1 { margin-bottom: var(--space-md); }
.hero__copy p.lead { max-width: 46ch; margin-bottom: var(--space-lg); }
.hero__actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

/* The radar-over-terrain signature graphic */
.hero__signal {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 460px;
  margin: 0 auto;
}
.hero__signal svg { width: 100%; height: 100%; }

.topo-line {
  fill: none;
  stroke: var(--tp-dark-gray);
  stroke-width: 1;
  opacity: 0.14;
}
.radar-sweep-group {
  transform-origin: 200px 200px;
  animation: sweep 5s linear infinite;
}
@media (prefers-reduced-motion: reduce) {
  .radar-sweep-group { animation: none; }
}
@keyframes sweep {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.radar-ring {
  fill: none;
  stroke: var(--tp-dark-gray);
  stroke-opacity: 0.16;
  stroke-width: 1;
}
.radar-node {
  fill: var(--accent);
}
.radar-node--ping {
  animation: node-pulse 2.6s var(--ease-out) infinite;
}
@keyframes node-pulse {
  0% { r: 4; opacity: 1; }
  70% { r: 16; opacity: 0; }
  100% { r: 16; opacity: 0; }
}

/* Background topo wash behind full-bleed dark sections */
.section--dark {
  position: relative;
}
.topo-wash {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
}
.section--dark > .container { position: relative; z-index: 1; }

/* Three-step "how it works" -------------------------------------------- */

.flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  position: relative;
}
@media (max-width: 780px) { .flow { grid-template-columns: 1fr; } }

.flow__step {
  position: relative;
  padding: var(--space-lg);
  background: var(--tp-white);
  border-radius: var(--radius-md);
  border: 1px solid rgba(37,37,37,0.08);
}
.flow__index {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
  display: block;
}
.flow__arrow {
  display: none;
}
@media (min-width: 781px) {
  .flow__step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -1.6rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent);
    font-size: 1.4rem;
    font-family: var(--font-mono);
  }
}

/* Timeline / progress ----------------------------------------------------- */

.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 2px solid rgba(37,37,37,0.12);
  margin-left: 6px;
}
.timeline__item {
  position: relative;
  padding: 0 0 var(--space-xl) var(--space-lg);
}
.timeline__item::before {
  content: "";
  position: absolute;
  left: -7px; top: 4px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-primary);
}
.timeline__item .tag { margin-bottom: var(--space-xs); }
.timeline__item h3 { margin-bottom: 0.3em; }

/* Founder cards ------------------------------------------------------------ */

.founder {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--space-lg);
  align-items: start;
  padding: var(--space-lg) 0;
}
.founder:not(:last-child) { border-bottom: 1px solid rgba(37,37,37,0.1); }
@media (max-width: 700px) { .founder { grid-template-columns: 1fr; } }
.founder__photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-align: center;
  padding: var(--space-sm);
  overflow: hidden;
}
.founder__photo img { width: 100%; height: 100%; object-fit: cover; }
.founder__role { color: var(--accent); font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 0.3em; display: block; }

/* Logo strip ----------------------------------------------------------- */

.logo-strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
  align-items: center;
  justify-content: center;
  padding: var(--space-md) 0;
}
.logo-strip__item {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  border: 1px solid rgba(37,37,37,0.12);
  padding: 0.6em 1.1em;
  border-radius: var(--radius-sm);
}

/* Contact form ------------------------------------------------------------ */

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.form-grid .field--full { grid-column: 1 / -1; }

.field { display: flex; flex-direction: column; gap: 0.4em; }
.field label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}
.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: 0.98rem;
  padding: 0.8em 0.9em;
  border: 1px solid rgba(37,37,37,0.18);
  border-radius: var(--radius-sm);
  background: var(--tp-white);
  color: var(--text-primary);
  transition: border-color var(--dur-fast);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
  outline: none;
}
.field textarea { resize: vertical; min-height: 120px; }

.form-status {
  font-size: 0.9rem;
  margin-top: var(--space-sm);
}
.form-status[data-state="success"] { color: #2E7D4F; }
.form-status[data-state="error"] { color: #C4432A; }

/* Product feature list -------------------------------------------------- */

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9em;
}
@media (max-width: 620px) { .feature-list { grid-template-columns: 1fr; } }
.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.7em;
  font-size: 0.96rem;
  color: var(--text-primary);
}
.feature-list li::before {
  content: "";
  flex-shrink: 0;
  margin-top: 0.5em;
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 1px;
  transform: rotate(45deg);
}