/* Vono AI — utilities: layout, glass, gradient text, buttons, chips, reveal. */

/* Layout */
.container { width: var(--container); margin-inline: auto; }
.container-narrow { width: var(--container-narrow); margin-inline: auto; }
.section { padding-block: var(--section-y); }
.stack { display: flex; flex-direction: column; }
.row { display: flex; align-items: center; }
.between { justify-content: space-between; }
.center { align-items: center; justify-content: center; }
.wrap { flex-wrap: wrap; }
.gap-1{gap:var(--s-1)} .gap-2{gap:var(--s-2)} .gap-3{gap:var(--s-3)} .gap-4{gap:var(--s-4)}
.gap-5{gap:var(--s-5)} .gap-6{gap:var(--s-6)} .gap-8{gap:var(--s-8)}
.grid { display: grid; gap: var(--s-5); }
.muted { color: var(--muted); }
.lead { font-size: var(--fs-lead); color: var(--ink-soft); line-height: 1.6; }
.eyebrow { font-size: var(--fs-xs); font-weight: 700; letter-spacing: .04em; color: var(--chip-ink); text-transform: none; }
.text-center { text-align: center; }
.hidden { display: none !important; }
.full { width: 100%; }

/* Gradient highlighted word (reference hero treatment) */
.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
  /* fallback if clip unsupported */
}
@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  .grad-text { color: var(--fuchsia); }
}

/* Glass / cards */
.glass {
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  backdrop-filter: blur(14px) saturate(1.2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-sm);
}
.card-pad { padding: clamp(18px, 3vw, 28px); }
.hairline { border: 1px solid var(--border); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  border-radius: var(--r-pill); font-weight: 700; font-size: var(--fs-sm);
  padding: 13px 26px; min-height: 46px; line-height: 1;
  transition: transform var(--t-fast) var(--ease-spring), box-shadow var(--t-base) var(--ease-out), background var(--t-base);
  will-change: transform; white-space: nowrap; user-select: none;
}
.btn:active { transform: scale(.96); }
.btn-primary { color: #fff; background: var(--grad-primary); background-size: 160% 160%; box-shadow: var(--sh-glow); }
.btn-primary:hover { box-shadow: 0 22px 60px rgba(123,92,255,.30), 0 10px 28px rgba(243,77,184,.22); }
.btn-secondary { color: var(--ink); background: var(--surface); border: 1px solid var(--border-strong); box-shadow: var(--sh-sm); }
.btn-secondary:hover { background: var(--mist); }
.btn-ghost { color: var(--chip-ink); background: var(--chip-bg); }
.btn-ghost:hover { background: rgba(231,214,255,.7); }
.btn-lg { padding: 16px 32px; font-size: var(--fs-body); min-height: 54px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .55; pointer-events: none; }

/* CTA shimmer (used on primary hero CTA) */
.btn-shimmer { position: relative; overflow: hidden; }
.btn-shimmer::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 25%, rgba(255,255,255,.45) 50%, transparent 75%);
  transform: translateX(-120%);
  animation: shimmer 3.2s var(--ease-in-out) infinite;
}
@keyframes shimmer { to { transform: translateX(120%); } }
@media (prefers-reduced-motion: reduce) { .btn-shimmer::after { animation: none; display: none; } }

/* Icon button */
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: var(--r-pill);
  color: var(--ink); background: var(--surface); border: 1px solid var(--border);
  transition: background var(--t-base), transform var(--t-fast) var(--ease-spring), color var(--t-base);
}
.icon-btn:hover { background: var(--mist); color: var(--violet); }
.icon-btn:active { transform: scale(.92); }

/* Chips / pills */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: var(--r-pill);
  background: var(--chip-bg); color: var(--chip-ink);
  font-size: var(--fs-sm); font-weight: 600; border: 1px solid transparent;
  transition: background var(--t-base), transform var(--t-fast) var(--ease-spring), border-color var(--t-base);
  white-space: nowrap;
}
.chip:hover { background: rgba(231,214,255,.7); transform: translateY(-1px); }
.chip[aria-pressed="true"], .chip.is-active { background: var(--grad-violet); color: #fff; }

/* Badges */
.badge { display:inline-flex; align-items:center; gap:6px; font-size: var(--fs-xs); font-weight: 700; padding: 5px 11px; border-radius: var(--r-pill); }
.badge-soft { background: var(--chip-bg); color: var(--chip-ink); }
.badge-warn { background: rgba(255,138,76,.15); color: #B4520E; }
.badge-info { background: rgba(123,92,255,.12); color: #5B3FB0; }
.badge-ok   { background: rgba(76,175,124,.14); color: #1E7A4E; }

/* Lilac icon container */
.icon-tile {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 14px;
  background: var(--chip-bg); color: var(--violet);
}

/* Hover lift */
.lift { transition: transform var(--t-base) var(--ease-out), box-shadow var(--t-base) var(--ease-out); }
.lift:hover { transform: translateY(-4px); box-shadow: var(--sh-lg); }
@media (prefers-reduced-motion: reduce) { .lift:hover { transform: none; } }

/* Reveal-on-scroll (driven by intersectionAnimations.js) */
[data-reveal] { opacity: 0; transform: translateY(18px); }
[data-reveal].is-in { opacity: 1; transform: none; transition: opacity var(--t-slow) var(--ease-out), transform var(--t-slow) var(--ease-out); }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* Grid helpers */
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.cols-auto { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
@media (max-width: 768px) { .cols-2,.cols-3,.cols-4 { grid-template-columns: 1fr; } }

.divider { height: 1px; background: var(--border); border: 0; }
.pill-track { display:inline-flex; gap:4px; padding:4px; background: var(--mist); border-radius: var(--r-pill); border:1px solid var(--border); }