/*
 * AI Solutions Page — solutions grid, protocol, engagement plans.
 * Loads only on the "AI Solutions" page template.
 */

/* Page Hero */
.page-hero { padding: 160px 0 80px; border-bottom: 1px solid var(--border); }
.page-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: flex-end; }
.page-label {
  display: flex; align-items: center; gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 24px;
}
.page-label::before { content: ''; width: 20px; height: 1px; background: var(--accent); }
.page-hero h1 {
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 500; line-height: 0.9; letter-spacing: -0.04em;
}
.page-hero h1 .serif { color: var(--accent); }
.page-hero-meta { font-size: 17px; color: var(--text-dim); max-width: 400px; padding-bottom: 12px; line-height: 1.6; }
.page-hero-meta strong { display: block; margin-top: 14px; color: var(--text); font-weight: 500; }

/* Guarantee Exclusion Notice */
.ai-notice { background: var(--accent-soft); border-bottom: 1px solid var(--border); }
.ai-notice-inner {
  display: flex; align-items: center; justify-content: center;
  gap: 10px; text-align: center;
  padding: 14px 0;
  font-size: 12px; letter-spacing: 0.04em;
  color: var(--text);
}
.ai-notice-inner i { color: var(--accent); font-size: 13px; flex-shrink: 0; }

/* Solutions Grid */
.ai-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--border); }
.ai-card {
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 44px 40px 40px;
  display: flex; flex-direction: column; align-items: flex-start;
  transition: background 0.3s;
}
.ai-card:nth-child(2n) { border-right: none; }
.ai-card:hover { background: var(--white); }

.ai-tag {
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-light); margin-bottom: 24px;
  transition: color 0.3s;
}
.ai-card:hover .ai-tag { color: var(--accent); }

.ai-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-dark);
  color: var(--text); font-size: 17px;
  margin-bottom: 24px;
  transition: all 0.3s;
}
.ai-card:hover .ai-icon { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }

.ai-card h3 { font-size: 22px; font-weight: 500; letter-spacing: -0.02em; margin-bottom: 12px; }
.ai-card p { font-size: 14px; color: var(--text-dim); line-height: 1.65; margin-bottom: 24px; }

.ai-card-cta {
  margin-top: auto;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 500; letter-spacing: -0.01em;
  padding-bottom: 3px; border-bottom: 1px solid var(--accent);
  transition: gap 0.2s ease;
}
.ai-card-cta i { font-size: 10px; transition: transform 0.2s ease; }
.ai-card-cta:hover i { transform: translateX(3px); }

/* Engagement Plans */
.ai-engagement { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--border); }
.ai-plan {
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 48px 40px;
  display: flex; flex-direction: column; align-items: flex-start;
  transition: background 0.3s;
}
.ai-plan:last-child { border-right: none; }
.ai-plan:hover { background: var(--white); }

.ai-plan-tag {
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 20px;
}
.ai-plan h3 { font-size: 26px; font-weight: 500; letter-spacing: -0.02em; margin-bottom: 12px; }
.ai-plan p { font-size: 15px; color: var(--text-dim); line-height: 1.65; margin-bottom: 20px; }

.ai-plan-meta {
  font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text-light); margin-bottom: 28px;
  padding-bottom: 3px; border-bottom: 1px solid var(--border-dark);
}
.ai-plan-cta { margin-top: auto; }

.ai-alt-contact { margin-top: 40px; }

/* Blueprint Infographic */
.ai-board {
  display: grid;
  grid-template-columns: 1fr 110px 1.15fr 110px 1fr;
  grid-template-areas:
    "h-in la h-e lb h-out"
    "b-in la b-e lb b-out"
    "stats stats stats stats stats";
  border: 1px solid var(--border);
  background: var(--white);
}

/* Explicit areas */
.ai-board > .ai-board-head:nth-child(1) { grid-area: h-in; }
.ai-board > .ai-board-link:nth-child(2) { grid-area: la; }
.ai-board > .ai-board-head:nth-child(3) { grid-area: h-e; }
.ai-board > .ai-board-link:nth-child(4) { grid-area: lb; }
.ai-board > .ai-board-head:nth-child(5) { grid-area: h-out; }
.ai-board > .ai-board-cell:nth-child(6) { grid-area: b-in; }
.ai-board > .ai-board-engine { grid-area: b-e; }
.ai-board > .ai-b-out { grid-area: b-out; }
.ai-board-stats { grid-area: stats; }

.ai-board-head {
  padding: 12px 20px;
  font-size: 10px; letter-spacing: 0.14em;
  color: var(--text-light);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ai-board-head.ai-head-accent { color: var(--accent); }
.ai-board-head.ai-h-out { border-right: none; }

.ai-board-cell {
  display: flex; flex-direction: column; justify-content: center;
  gap: 12px;
  padding: 28px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ai-board-cell.ai-b-out { border-right: none; }

.ai-node {
  display: flex; align-items: center; gap: 14px;
  border: 1px solid var(--border-dark);
  background: var(--white);
  padding: 13px 16px;
  transition: border-color 0.25s, background 0.25s;
}
.ai-node:hover { border-color: var(--accent); background: var(--accent-soft); }
.ai-node-icon {
  width: 34px; height: 34px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-dark);
  font-size: 13px; color: var(--text);
  transition: border-color 0.25s, color 0.25s;
}
.ai-node:hover .ai-node-icon { border-color: var(--accent); color: var(--accent); }
.ai-node-text strong { display: block; font-size: 14px; font-weight: 500; letter-spacing: -0.01em; }
.ai-node-text span { display: block; font-size: 11px; color: var(--text-light); margin-top: 2px; }

/* Engine column — blueprint grid backdrop */
.ai-board-engine {
  background-color: var(--bg-alt);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 22px 22px;
  align-items: center; text-align: center;
}
.ai-engine-node {
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--text); color: var(--bg);
  padding: 16px 20px;
  font-size: 12px; letter-spacing: 0.12em;
}
.ai-engine-dot { width: 8px; height: 8px; background: var(--accent); animation: ai-pulse 1.6s ease-in-out infinite; }
@keyframes ai-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.7); }
}
.ai-engine-sub { font-size: 10px; letter-spacing: 0.16em; color: var(--accent); margin: 14px 0 20px; }
.ai-engine-steps { list-style: none; display: flex; flex-direction: column; gap: 10px; font-size: 11px; letter-spacing: 0.08em; color: var(--text-dim); }
.ai-engine-steps li { display: flex; align-items: center; gap: 10px; text-align: left; }
.ai-engine-steps i { color: var(--accent); width: 14px; text-align: center; flex-shrink: 0; }

/* Connectors */
.ai-board-link {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px;
  padding: 0 10px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.ai-link-label { font-size: 9px; letter-spacing: 0.18em; color: var(--text-light); }
.ai-link-track { display: flex; align-items: center; width: 100%; }
.ai-link-line {
  flex: 1; height: 1px;
  background-image: repeating-linear-gradient(90deg, var(--accent) 0 6px, transparent 6px 12px);
  animation: ai-dash 0.7s linear infinite;
}
.ai-link-tip {
  width: 7px; height: 7px; margin-left: -1px;
  border-top: 1px solid var(--accent);
  border-right: 1px solid var(--accent);
  transform: rotate(45deg);
}
@keyframes ai-dash { to { background-position-x: 12px; } }

/* Stats strip */
.ai-board-stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.ai-stat { padding: 22px 26px; border-right: 1px solid var(--border); }
.ai-stat:last-child { border-right: none; }
.ai-stat-num { display: block; font-size: 30px; font-weight: 500; letter-spacing: -0.02em; line-height: 1; }
.ai-stat-label { display: block; font-size: 9px; letter-spacing: 0.16em; color: var(--text-light); margin-top: 10px; }

.ai-board-foot { margin-top: 16px; font-size: 10px; letter-spacing: 0.08em; color: var(--text-light); }

@media (prefers-reduced-motion: reduce) {
  .ai-link-line, .ai-engine-dot { animation: none; }
}

/* Responsive */
@media (max-width: 1024px) {
  .ai-grid { grid-template-columns: 1fr 1fr; }
  .ai-board { grid-template-columns: 1fr 90px 1.15fr 90px 1fr; }
  .ai-board-cell { padding: 20px; }
  .ai-stat { padding: 18px 20px; }
  .ai-stat-num { font-size: 24px; }
}

@media (max-width: 900px) {
  .ai-board {
    grid-template-columns: 1fr;
    grid-template-areas:
      "h-in" "b-in" "la" "h-e" "b-e" "lb" "h-out" "b-out" "stats";
  }
  .ai-board-head { border-right: none; }
  .ai-board-cell { border-right: none; padding: 24px; }
  .ai-board-link {
    flex-direction: row;
    padding: 12px 24px;
    border-right: none;
  }
  .ai-link-label { order: -1; }
}

@media (max-width: 680px) {
  .page-hero { padding: 130px 0 60px; }
  .page-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .ai-grid { grid-template-columns: 1fr; }
  .ai-card { border-right: none; padding: 36px 24px 40px; }
  .ai-engagement { grid-template-columns: 1fr; }
  .ai-plan { border-right: none; padding: 40px 24px; }
  .ai-board-stats { grid-template-columns: 1fr 1fr; }
  .ai-stat:nth-child(2n) { border-right: none; }
  .ai-stat:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
}