/* =========================================================================
   Upcallo - pohyblive ukazky
   Kazda funkce ma na webu malou scenu, ktera ukaze, co dela - misto ikony.
   Pravidla:
   - zadna animace nebezi mimo obrazovku (.demo bez .is-in je pauznuta),
   - pri prefers-reduced-motion se nehybe nic a je videt vysledny stav,
   - bez JS je scena porad videt, jen se nehybe.
   ========================================================================= */

.demo {
  position: relative;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-tile);
  background: var(--surface-sunken);
  padding: 12px;
  overflow: hidden;
}
.demo * { animation-play-state: paused; }
.demo.is-in * { animation-play-state: running; }

@media (prefers-reduced-motion: reduce) {
  .demo *, .demo.is-in * { animation: none !important; transition: none !important; }
}

/* mala scena v karte funkce */
.demo--tile { height: 116px; margin-bottom: 16px; display: grid; align-content: center; gap: 8px; }

.demo-line { height: 8px; border-radius: 999px; background: var(--border); }
.demo-chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 26px; padding: 0 10px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 0.75rem; font-weight: 600; color: var(--ink-2); white-space: nowrap;
}
.demo-bubble {
  max-width: 88%;
  padding: 8px 11px; border-radius: 12px;
  font-size: 0.8125rem; line-height: 1.35;
  background: var(--surface); border: 1px solid var(--border); color: var(--ink-2);
}
.demo-bubble--ai { background: var(--accent-tint); border-color: var(--accent-tint-border); color: var(--accent); border-bottom-left-radius: 4px; }
.demo-bubble--caller { margin-left: auto; border-bottom-right-radius: 4px; }

/* ---------------------------------------------------- 1 - odpovedi a ceny */

.d-answer { display: grid; gap: 8px; }
.d-answer .q { animation: popIn 5.2s var(--ease) infinite; }
.d-answer .a { animation: popIn 5.2s var(--ease) 1s infinite; }

@keyframes popIn {
  0%   { opacity: 0; transform: translateY(6px) scale(0.98); }
  12%  { opacity: 1; transform: none; }
  82%  { opacity: 1; transform: none; }
  100% { opacity: 0; transform: translateY(-4px); }
}

/* ------------------------------------------------------- 2 - objednavky */

.d-cal { display: grid; grid-template-columns: repeat(6, 1fr); gap: 5px; }
.d-cal i {
  display: block; height: 20px; border-radius: 6px;
  background: var(--surface); border: 1px solid var(--border);
}
.d-cal i.pick {
  animation: slotTake 5s var(--ease) infinite;
}
.d-cal .stamp {
  grid-column: 1 / -1;
  font-size: 0.75rem; font-weight: 700; color: var(--success);
  display: flex; align-items: center; gap: 6px;
  opacity: 0;
  animation: fadeHold 5s var(--ease) 1.4s infinite;
}
@keyframes slotTake {
  0%, 22%   { background: var(--surface); border-color: var(--border); transform: none; }
  30%       { background: var(--accent-tint); border-color: var(--accent); transform: scale(1.12); }
  38%, 92%  { background: var(--accent); border-color: var(--accent); transform: none; }
  100%      { background: var(--surface); border-color: var(--border); }
}
@keyframes fadeHold {
  0%   { opacity: 0; transform: translateY(4px); }
  10%  { opacity: 1; transform: none; }
  80%  { opacity: 1; transform: none; }
  100% { opacity: 0; }
}

/* --------------------------------------------------- 3 - vzkaz a shrnuti */

.d-wave { display: flex; align-items: center; gap: 3px; height: 34px; }
.d-wave i {
  flex: 1; border-radius: 999px; background: var(--accent-soft, var(--accent-tint-border));
  height: 30%;
  animation: wave 1.5s ease-in-out infinite;
}
.d-wave i:nth-child(3n) { animation-duration: 1.1s; }
.d-wave i:nth-child(4n) { animation-duration: 1.9s; }
.d-wave i:nth-child(odd) { animation-delay: .18s; }
.d-wave i:nth-child(3n+1) { animation-delay: .36s; }
.d-wave--accent i { background: var(--accent); opacity: .55; }
@keyframes wave {
  0%, 100% { height: 24%; }
  50%      { height: 100%; }
}

.d-summary { display: grid; gap: 6px; margin-top: 6px; }
.d-summary .demo-line { width: 0; animation: grow 5s var(--ease) infinite; }
.d-summary .demo-line:nth-child(1) { animation-delay: .4s; --w: 92%; }
.d-summary .demo-line:nth-child(2) { animation-delay: .9s; --w: 74%; }
.d-summary .demo-line:nth-child(3) { animation-delay: 1.4s; --w: 55%; background: var(--accent-tint-border); }
@keyframes grow {
  0%       { width: 0; opacity: 0; }
  14%      { opacity: 1; }
  24%, 88% { width: var(--w, 80%); opacity: 1; }
  100%     { width: var(--w, 80%); opacity: 0; }
}

/* ------------------------------------------------------ 4 - nalehava slova */

.d-urgent { display: grid; gap: 10px; }
.d-urgent .said { font-size: 0.8125rem; color: var(--ink-3); line-height: 1.4; }
.d-urgent .hot {
  border-radius: 5px; padding: 1px 4px; font-weight: 700;
  color: var(--ink-2); background: transparent;
  animation: hotWord 5s var(--ease) infinite;
}
@keyframes hotWord {
  0%, 18%  { background: transparent; color: var(--ink-2); }
  26%, 92% { background: var(--danger-bg); color: var(--danger); }
  100%     { background: transparent; color: var(--ink-2); }
}
.d-urgent .alarm {
  justify-self: start; opacity: 0;
  border-color: var(--danger); color: var(--danger); background: var(--danger-bg);
  animation: fadeHold 5s var(--ease) 1.5s infinite;
}
.d-urgent .alarm .dot { background: var(--danger); }

/* ------------------------------------------------- 5 - hlas a vyslovnost */

.d-voice { display: grid; gap: 10px; justify-items: center; }
.d-voice .say { position: relative; height: 26px; width: 100%; }
.d-voice .say span {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 1.0625rem; font-weight: 800; letter-spacing: -0.02em;
}
.d-voice .written { animation: swapOut 4.6s var(--ease) infinite; }
.d-voice .spoken { color: var(--accent); animation: swapIn 4.6s var(--ease) infinite; }
@keyframes swapOut {
  0%, 38%  { opacity: 1; transform: none; }
  46%, 92% { opacity: 0; transform: translateY(-8px); }
  100%     { opacity: 1; transform: none; }
}
@keyframes swapIn {
  0%, 38%  { opacity: 0; transform: translateY(8px); }
  46%, 92% { opacity: 1; transform: none; }
  100%     { opacity: 0; transform: translateY(8px); }
}

/* ------------------------------------------------------------ 6 - jazyky */

.d-lang { position: relative; height: 72px; }
.d-lang p {
  position: absolute; inset: 0;
  display: grid; align-content: center; gap: 6px;
  opacity: 0;
  animation: langCycle 9s var(--ease) infinite;
}
.d-lang p:nth-child(2) { animation-delay: 3s; }
.d-lang p:nth-child(3) { animation-delay: 6s; }
.d-lang .tag { font-family: var(--mono); font-size: 0.6875rem; letter-spacing: 0.1em; color: var(--accent); }
.d-lang .txt { font-size: 0.875rem; color: var(--ink-2); line-height: 1.4; }
@keyframes langCycle {
  0%       { opacity: 0; transform: translateY(6px); }
  4%, 30%  { opacity: 1; transform: none; }
  34%, 100%{ opacity: 0; transform: translateY(-6px); }
}

/* -------------------------------------------------------- 7 - zivy hovor */

.d-live { display: grid; gap: 7px; }
.d-live .demo-bubble { opacity: 0; animation: popIn 6s var(--ease) infinite; }
.d-live .demo-bubble:nth-child(2) { animation-delay: .8s; }
.d-live .whisper {
  justify-self: end; opacity: 0;
  border-style: dashed; color: var(--accent); border-color: var(--accent);
  animation: fadeHold 6s var(--ease) 1.8s infinite;
}

/* ------------------------------------------------------- 8 - doporuceni */

.d-suggest { display: grid; gap: 8px; }
.d-suggest .row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 8px 10px; font-size: 0.8125rem; color: var(--ink-2);
}
.d-suggest .go {
  height: 26px; padding: 0 10px; border-radius: 8px;
  background: var(--accent); color: var(--on-accent);
  font-size: 0.75rem; font-weight: 700; display: grid; place-items: center;
  animation: press 5s var(--ease) infinite;
}
@keyframes press {
  0%, 44%  { transform: none; }
  50%      { transform: scale(0.92); }
  56%, 88% { transform: none; }
  100%     { transform: none; }
}
.d-suggest .done {
  opacity: 0; justify-self: start;
  color: var(--success); border-color: var(--success-border); background: var(--success-bg);
  animation: fadeHold 5s var(--ease) 2.8s infinite;
}

/* ------------------------------------------------------------- 9 - data */

.d-chart { display: flex; align-items: flex-end; gap: 6px; height: 74px; }
.d-chart i {
  flex: 1; border-radius: 5px 5px 2px 2px;
  background: var(--accent-tint-border);
  height: 10%;
  animation: bar 5.4s var(--ease) infinite;
}
.d-chart i:nth-child(1) { --h: 38%; animation-delay: 0s; }
.d-chart i:nth-child(2) { --h: 62%; animation-delay: .1s; }
.d-chart i:nth-child(3) { --h: 48%; animation-delay: .2s; }
.d-chart i:nth-child(4) { --h: 88%; animation-delay: .3s; background: var(--accent); }
.d-chart i:nth-child(5) { --h: 70%; animation-delay: .4s; }
.d-chart i:nth-child(6) { --h: 34%; animation-delay: .5s; }
.d-chart i:nth-child(7) { --h: 54%; animation-delay: .6s; }
@keyframes bar {
  0%       { height: 8%; }
  18%, 88% { height: var(--h, 50%); }
  100%     { height: 8%; }
}

/* ============================================ PRUCHOD HOVORU - simulator */

.flow-demo { display: grid; gap: 14px; }

.flow-pick { display: flex; flex-wrap: wrap; gap: 8px; }
.flow-pick button {
  min-height: 38px; padding: 0 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--border-strong);
  background: var(--surface); color: var(--ink-2);
  font: inherit; font-size: 0.875rem; font-weight: 600;
  cursor: pointer;
  transition: background-color 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}
.flow-pick button:hover { border-color: var(--accent); color: var(--accent); }
.flow-pick button[aria-pressed="true"] {
  background: var(--accent); border-color: var(--accent); color: var(--on-accent);
}

.flow-steps { display: grid; gap: 8px; position: relative; }

.flow-step {
  position: relative;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 4px 12px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--r-tile);
  background: var(--surface);
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease), opacity 200ms var(--ease), transform 200ms var(--ease);
}
.flow-step + .flow-step::before {
  content: "";
  position: absolute; left: 31px; top: -9px;
  width: 2px; height: 9px;
  background: var(--border);
  transition: background-color 200ms var(--ease);
}

.flow-step .n {
  grid-row: span 2;
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface-sunken);
  font-family: var(--mono); font-size: 0.8125rem; color: var(--ink-muted);
  transition: background-color 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}
.flow-step .name { font-weight: 700; font-size: 0.9375rem; letter-spacing: -0.01em; }
.flow-step .meta { grid-column: 2; font-size: 0.8125rem; color: var(--ink-muted); }
.flow-step .verdict {
  grid-column: 3; grid-row: 1 / span 2;
  font-size: 0.8125rem; font-weight: 600; color: var(--ink-muted);
  opacity: 0; transform: translateX(-4px);
  transition: opacity 200ms var(--ease), transform 200ms var(--ease), color 200ms var(--ease);
  text-align: right; max-width: 190px;
}
.flow-step[data-state] .verdict { opacity: 1; transform: none; }

/* stavy kroku */
.flow-step[data-state="ringing"] {
  border-color: var(--warning); background: var(--warning-bg);
}
.flow-step[data-state="ringing"] .n {
  background: var(--warning); border-color: var(--warning); color: #fff;
  animation: ring 900ms var(--ease) infinite;
}
.flow-step[data-state="ringing"] .verdict { color: var(--warning); }
@keyframes ring {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--warning) 45%, transparent); }
  70%      { box-shadow: 0 0 0 9px transparent; }
}

.flow-step[data-state="answered"] {
  border-color: var(--accent); background: var(--accent-tint);
}
.flow-step[data-state="answered"] .n { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.flow-step[data-state="answered"] .verdict { color: var(--accent); }

.flow-step[data-state="skipped"] { opacity: .62; border-style: dashed; }
.flow-step[data-state="unreached"] { opacity: .38; }

.flow-step[data-state="answered"], .flow-step[data-state="ringing"] { transform: translateX(2px); }

.flow-caller {
  position: absolute; left: 20px; top: 0;
  width: 12px; height: 12px; border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent);
  opacity: 0;
  transition: transform 420ms var(--ease), opacity 200ms var(--ease);
  pointer-events: none;
}
.flow-demo.is-running .flow-caller { opacity: 1; }

.flow-status {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  min-height: 44px;
  padding: 10px 14px;
  border-radius: var(--r-tile);
  border: 1px dashed var(--border-strong);
  background: var(--surface-sunken);
  font-size: 0.875rem; color: var(--ink-2);
}
.flow-status strong { font-weight: 700; }

.flow-replay {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 38px; padding: 0 14px;
  border-radius: var(--r-button);
  border: 1px solid var(--border-strong); background: var(--surface);
  font: inherit; font-size: 0.875rem; font-weight: 700; color: var(--ink);
  cursor: pointer;
}
.flow-replay:hover { border-color: var(--accent); color: var(--accent); }
.flow-replay svg { width: 15px; height: 15px; }

@media (prefers-reduced-motion: reduce) {
  .flow-step, .flow-step .n, .flow-caller { transition: none; animation: none; }
  .flow-caller { display: none; }
}

/* ======================================== prehravany prepis ziveho hovoru */

.play-bubbles .bubble {
  opacity: 0; transform: translateY(8px);
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}
.play-bubbles .bubble.is-said { opacity: 1; transform: none; }
.no-js .play-bubbles .bubble, .play-bubbles.is-done .bubble { opacity: 1; transform: none; }

.typing { display: inline-flex; gap: 3px; align-items: center; height: 10px; }
.typing i {
  width: 5px; height: 5px; border-radius: 999px; background: currentColor; opacity: .5;
  animation: dots 1.1s ease-in-out infinite;
}
.typing i:nth-child(2) { animation-delay: .15s; }
.typing i:nth-child(3) { animation-delay: .3s; }
@keyframes dots {
  0%, 100% { transform: translateY(0); opacity: .35; }
  50%      { transform: translateY(-3px); opacity: 1; }
}

.call-summary {
  opacity: 0; transform: translateY(8px);
  transition: opacity 260ms var(--ease), transform 260ms var(--ease);
}
.call-summary.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .play-bubbles .bubble, .call-summary { opacity: 1 !important; transform: none !important; }
  .typing i { animation: none; }
}

/* ============================================== pocitadla a zive dlazdice */

.tick { font-variant-numeric: tabular-nums; }

.queue-bar {
  height: 8px; border-radius: 999px; background: var(--border-subtle);
  overflow: hidden;
}
.queue-bar span {
  display: block; height: 100%; border-radius: 999px;
  background: var(--accent);
  width: 20%;
  animation: queueFill 6s var(--ease) infinite;
}
.queue-bar--warn span { background: var(--warning); animation-delay: .6s; }
@keyframes queueFill {
  0%       { width: 12%; }
  35%      { width: 78%; }
  60%      { width: 46%; }
  100%     { width: 12%; }
}

/* krok, ktery probehl a pustil hovor dal */
.flow-step[data-state="done"] { border-color: var(--accent-tint-border); background: var(--accent-tint); }
.flow-step[data-state="done"] .n { background: var(--surface); border-color: var(--accent-tint-border); color: var(--accent); }
.flow-step[data-state="done"] .verdict { color: var(--ink-3); }

/* zvonilo to tam, ale nikdo nezvedl - hovor sel dal */
.flow-step[data-state="missed"] { border-color: var(--warning-border); background: var(--warning-bg); opacity: .75; }
.flow-step[data-state="missed"] .n { background: var(--warning-bg); border-color: var(--warning-border); color: var(--warning); }
.flow-step[data-state="missed"] .verdict { color: var(--warning); }

/* ===================================== postupne nabihani radku v ukazkach */
/* Jednorazove, kdyz se ukazka objevi na obrazovce - ne smycka, ktera blika. */

.js .seq > * {
  opacity: 0; transform: translateY(10px);
  transition: opacity 320ms var(--ease), transform 320ms var(--ease);
}
.js .seq.is-in > * { opacity: 1; transform: none; }
.js .seq.is-in > *:nth-child(1) { transition-delay: 60ms; }
.js .seq.is-in > *:nth-child(2) { transition-delay: 160ms; }
.js .seq.is-in > *:nth-child(3) { transition-delay: 260ms; }
.js .seq.is-in > *:nth-child(4) { transition-delay: 360ms; }
.js .seq.is-in > *:nth-child(5) { transition-delay: 460ms; }
.js .seq.is-in > *:nth-child(6) { transition-delay: 560ms; }
.js .seq.is-in > *:nth-child(7) { transition-delay: 660ms; }
.js .seq.is-in > *:nth-child(8) { transition-delay: 760ms; }
.js .seq.is-in > *:nth-child(9) { transition-delay: 860ms; }
.js .seq.is-in > *:nth-child(10) { transition-delay: 960ms; }

@media (prefers-reduced-motion: reduce) {
  .js .seq > *, .js .seq.is-in > * { opacity: 1; transform: none; transition: none; }
}

/* --------------------------------------------- pruchod hovoru na telefonu */
@media (max-width: 620px) {
  .flow-step { grid-template-columns: 30px 1fr; padding: 11px 12px; }
  .flow-step .n { grid-row: span 3; align-self: start; }
  .flow-step .verdict {
    grid-column: 2; grid-row: auto;
    text-align: left; max-width: none; margin-top: 3px;
  }
  .flow-pick button { flex: 1 1 auto; }
  .demo--tile { height: 108px; }
}