/* 4 · PRODUCT HIGHLIGHTS — feature rows. Currently Voice and Invoices.
   Logic: js/sections/voice.js, js/sections/invoice.js */

.feature { max-width: 1320px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(40px, 6vw, 96px); align-items: center; }
/* .feature.is-flipped puts the copy on the right */
.feature.is-flipped { grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); }
.feature.is-flipped .f-copy { order: 2; }
.f-copy .kicker { margin-bottom: 26px; }
.f-text { margin: 26px 0 0; max-width: 25em; color: var(--tx-2); font-size: 18px; line-height: 1.55; }
.f-vis { position: relative; height: clamp(520px, 64vh, 580px); }

/* ---------- Voice ---------- */
.mic-panel { position: absolute; left: 0; top: 0; width: 62%; padding: 28px 30px 32px; border-radius: 32px;
  background: linear-gradient(160deg, rgba(18, 88, 74, .7), rgba(4, 30, 25, .62)); box-shadow: 0 0 0 1px rgba(243, 238, 227, .11) inset, 0 50px 90px -40px rgba(0, 0, 0, .7);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  opacity: 0; transform: translateY(30px); transition: opacity 900ms var(--ease-out), transform 1100ms var(--ease-out); }
.voice-vis.in .mic-panel { opacity: 1; transform: none; }
.mic-row { display: flex; align-items: center; gap: 18px; }
.mic { position: relative; width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center; background: var(--surface); color: var(--emerald-deep); transition: background-color 400ms ease, color 400ms ease, box-shadow 400ms ease; }
.mic svg { width: 26px; height: 26px; }
.mic::before, .mic::after { content: ""; position: absolute; inset: 0; border-radius: 50%; box-shadow: 0 0 0 1.5px rgba(108, 255, 192, .7); opacity: 0; }
.voice-vis[data-s="listen"] .mic { background: var(--volt); color: var(--volt-ink); box-shadow: 0 0 40px -6px rgba(108, 255, 192, .7); }
.voice-vis[data-s="listen"] .mic::before { animation: ripple 1.8s var(--ease-out) infinite; }
.voice-vis[data-s="listen"] .mic::after { animation: ripple 1.8s var(--ease-out) 900ms infinite; }
@keyframes ripple { from { opacity: .9; transform: scale(1); } to { opacity: 0; transform: scale(1.9); } }
.mic-state { font-size: 12.5px; letter-spacing: .2em; text-transform: uppercase; font-weight: 600; color: var(--tx-3); }
.voice-vis[data-s="listen"] .mic-state { color: var(--volt); }
.wave { display: flex; align-items: center; gap: 4px; height: 76px; margin: 26px 0 24px; }
.wave i { flex: 1; height: 100%; border-radius: 3px; background: linear-gradient(180deg, var(--volt), var(--mint) 50%, var(--volt)); transform: scaleY(var(--a, .05)); opacity: .9; }
.transcript { margin: 0; min-height: 3.9em; padding-right: 8%; font-family: var(--display); font-size: clamp(24px, 2.1vw, 33px); line-height: 1.3; letter-spacing: -0.012em; color: var(--tx); }
.transcript span { opacity: 0; filter: blur(6px); transition: opacity 420ms var(--ease-out), filter 420ms var(--ease-out), text-decoration-color 500ms ease;
  text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 7px; text-decoration-color: transparent; }
.transcript span.on { opacity: 1; filter: none; }
.transcript span.mapped { text-decoration-color: var(--c); }
.vp-card { position: absolute; right: 0; top: 64px; width: 46%; min-width: 300px; padding: 20px 20px 18px; border-radius: 28px; background: var(--ivory); color: var(--ink);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .6) inset, 0 60px 100px -40px rgba(0, 0, 0, .8);
  opacity: 0; transform: translateY(40px) rotate(2.5deg); transition: opacity 900ms var(--ease-out) 250ms, transform 1200ms var(--ease-out) 250ms; }
.voice-vis.in .vp-card { opacity: 1; transform: rotate(2deg); }
.vp-card svg { width: 18px; height: 18px; }
.vp-head { display: flex; justify-content: space-between; align-items: center; margin: 2px 4px 12px; }
.vp-from { display: inline-flex; align-items: center; gap: 5px; height: 26px; padding: 0 10px; border-radius: 999px; background: var(--soft-mint); color: var(--emerald); font-size: 12.5px; font-weight: 600; }
.vp-from svg { width: 13px; height: 13px; }
.vp-row { position: relative; display: flex; align-items: center; gap: 14px; padding: 10px 14px; border-radius: 14px; background: var(--surface); margin-top: 6px; color: var(--ink-3);
  transition: color 400ms ease, box-shadow 500ms ease; }
.vp-row div { display: grid; gap: 1px; flex: 1; }
.vp-row small { font-size: 12px; color: var(--ink-web); }
.vp-row b { font-size: 16px; font-weight: 600; color: var(--ink); letter-spacing: -0.015em; opacity: 0; transform: translateX(-6px); transition: opacity 400ms var(--ease-out), transform 500ms var(--ease-out); }
.vp-row:not(.on) div::after { content: ""; position: absolute; left: 46px; bottom: 13px; width: 46%; height: 9px; border-radius: 5px; background: var(--border); }
.vp-row.on { color: var(--emerald); }
.vp-row.on b { opacity: 1; transform: none; }
.vp-btn { margin-top: 14px; height: 50px; border-radius: 25px; display: grid; place-items: center; font-weight: 600; font-size: 16px; color: var(--surface);
  background: linear-gradient(100deg, #1a6a5c, var(--emerald-deep) 60%, #0a4a40); opacity: .35; transition: opacity 500ms ease, box-shadow 500ms ease; }
.voice-vis[data-s="ready"] .vp-btn { opacity: 1; box-shadow: 0 12px 26px -12px rgba(13, 91, 79, .8), 0 0 0 3px rgba(108, 255, 192, .45); }

/* ---------- Invoice ---------- */
.inv-job { position: absolute; left: 0; bottom: 4%; z-index: 2; width: 330px; padding: 16px 18px 6px 24px; border-radius: 24px; background: var(--surface); color: var(--ink); overflow: hidden;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .6) inset, 0 40px 70px -30px rgba(0, 0, 0, .75);
  opacity: 0; transform: translateY(30px); transition: opacity 900ms var(--ease-out), transform 1100ms var(--ease-out); }
.inv-vis.in .inv-job { opacity: 1; transform: none; }
.inv-job svg { width: 18px; height: 18px; }
.inv-job .jc-stripe { background: var(--warning); }
.inv-vis[data-paid="yes"] .inv-job .jc-stripe { background: var(--success); }
.ij-top { display: flex; justify-content: space-between; gap: 10px; }
.ij-pay { position: relative; height: 56px; margin-top: 12px; border-radius: 16px; box-shadow: 0 0 0 1px var(--border) inset; transition: background-color 400ms ease, box-shadow 400ms ease; }
.ij-pay > span { position: absolute; inset: 0; display: flex; align-items: center; gap: 10px; padding: 0 8px 0 14px; font-weight: 600; font-size: 16px; transition: opacity 320ms var(--ease-out), transform 420ms var(--ease-out); }
.ij-unpaid svg { color: var(--warning); }
.ij-unpaid .sh-btn { height: 40px; padding: 0 14px; font-size: 14.5px; transition: transform 160ms var(--ease-out); }
.ij-unpaid .sh-btn.press { animation: press 300ms var(--ease-out); }
.ij-paid { color: var(--emerald); opacity: 0; transform: translateY(6px); }
.ij-date { margin-left: auto; padding-right: 8px; font-weight: 500; font-size: 13px; color: var(--ink-2); }
.inv-vis[data-paid="yes"] .ij-pay { background: var(--soft-mint); box-shadow: none; }
.inv-vis[data-paid="yes"] .ij-unpaid { opacity: 0; transform: translateY(-6px); }
.inv-vis[data-paid="yes"] .ij-paid { opacity: 1; transform: none; }
.inv-job .sh-inv { margin: 12px 0; font-size: 15.5px; }
.inv-job .sh-inv.press { animation: press 300ms var(--ease-out); }

.inv-doc { position: absolute; right: 2%; top: 0; width: 62%; min-width: 320px; }
.paper { position: relative; padding: 30px 30px 28px; border-radius: 10px; background: #FFFEFA; color: var(--ink); font-family: var(--app-sans);
  box-shadow: 0 1px 0 rgba(255,255,255,.8) inset, 0 70px 120px -50px rgba(0, 0, 0, .85), 0 20px 40px -20px rgba(0, 0, 0, .4);
  rotate: -2.4deg; transform-origin: 50% 0; clip-path: inset(0 0 100% 0 round 10px); opacity: .4; transform: translateY(-10px);
  transition: clip-path 1100ms var(--ease-io), opacity 600ms ease, transform 1100ms var(--ease-out); }
.inv-vis[data-doc="open"] .paper { clip-path: inset(0 0 0 0 round 10px); opacity: 1; transform: none; }
.d-top { display: flex; justify-content: space-between; align-items: baseline; }
.d-title { font-family: var(--app-serif); font-size: 30px; letter-spacing: .02em; color: var(--emerald-deep); }
.d-no { font-weight: 700; font-size: 15px; letter-spacing: .02em; }
.d-from { display: grid; gap: 6px; margin: 12px 0 22px; }
.d-from i { display: block; height: 8px; border-radius: 4px; background: #EEE9DF; width: 44%; }
.d-from i + i { width: 30%; }
.d-meta { display: flex; justify-content: space-between; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.d-meta div { display: grid; gap: 2px; font-size: 14px; }
.d-meta .r { text-align: right; }
.d-meta small { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-web); font-weight: 600; margin-bottom: 2px; }
.d-meta span { color: var(--ink-web); }
.d-line { display: flex; justify-content: space-between; gap: 14px; padding: 13px 0; border-bottom: 1px solid var(--border); font-size: 14.5px; font-variant-numeric: tabular-nums; }
.d-line small { color: var(--ink-web); font-size: 12.5px; }
.d-head { font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-web); font-weight: 600; padding-top: 18px; }
.d-tot { display: grid; gap: 7px; margin: 16px 0 0 auto; width: 62%; font-size: 14px; color: var(--ink-web); font-variant-numeric: tabular-nums; }
.d-tot div { display: flex; justify-content: space-between; }
.d-tot span:last-child { color: var(--ink); font-weight: 600; }
.d-bal { padding-top: 9px; border-top: 1px solid var(--border); color: var(--ink) !important; font-weight: 700; font-size: 16px; }
.d-status { position: absolute; right: 30px; top: 64px; height: 28px; min-width: 70px; }
.d-status span { position: absolute; right: 0; top: 0; height: 28px; padding: 0 12px; border-radius: 999px; display: inline-flex; align-items: center; font-size: 13px; font-weight: 600; transition: opacity 300ms ease; }
.ds-u { background: #FBEBD6; color: var(--owed); }
.ds-p { background: var(--soft-mint); color: var(--emerald); opacity: 0; }
.inv-vis[data-paid="yes"] .ds-u { opacity: 0; }
.inv-vis[data-paid="yes"] .ds-p { opacity: 1; }
.d-stamp { position: absolute; left: 6%; top: 73%; padding: 8px 20px 6px; border: 3px solid var(--brass); border-radius: 12px; color: var(--brass); font-weight: 800; font-size: 34px; letter-spacing: .22em;
  opacity: 0; transform: rotate(-14deg) scale(1.7); transition: opacity 200ms ease, transform 420ms cubic-bezier(.2, .9, .3, 1); mix-blend-mode: multiply; }
.inv-vis[data-paid="yes"] .d-stamp { opacity: .9; transform: rotate(-14deg) scale(1); }
.inv-note { margin: 22px 0 0 34%; padding: 14px 18px; border-radius: 16px; background: rgba(78, 215, 176, .12); box-shadow: 0 0 0 1px rgba(78, 215, 176, .25) inset; color: var(--tx-2); font-size: 14.5px; line-height: 1.45;
  opacity: 0; transform: translateY(10px); transition: opacity 600ms var(--ease-out), transform 700ms var(--ease-out); }
.inv-note b { display: block; color: var(--mint-hi); font-weight: 600; }
.inv-vis[data-paid="yes"] .inv-note { opacity: 1; transform: none; transition-delay: 500ms; }

/* ---------- mobile ---------- */
@media (max-width: 900px) {
  .feature, .feature.is-flipped { grid-template-columns: 1fr; gap: 40px; }
  .feature.is-flipped .f-copy { order: 0; }
  .f-vis { height: auto; display: grid; gap: 18px; }
  .mic-panel, .vp-card, .inv-job, .inv-doc { position: relative; inset: auto; width: 100%; min-width: 0; }
  .vp-card { width: 92%; margin: -40px 0 0 auto; }
  .inv-doc { width: 96%; margin: -10px 0 0 auto; }
  .inv-job { width: min(100%, 330px); }
  .paper { padding: 24px 22px 24px; }
  .d-stamp { font-size: 26px; }
  .inv-note { margin-left: 0; }
}

/* ---------- reduced motion ---------- */
.rm .mic-panel, .rm .vp-card, .rm .inv-job { transform: none !important; translate: none !important; transition-property: opacity; transition-duration: 400ms; }
.rm .paper { clip-path: none; transition: opacity 400ms ease; transform: none; }
.rm .d-stamp { transform: rotate(-14deg); transition: opacity 300ms ease; }