/* ═══════════════════════════════════════════════════════════
   Checkout: cart and warranty, shipping, payment.
   One page, three steps that fold into a summary line once done.
   The progress bar is a bus: it fills as each stage is signed off.
   ═══════════════════════════════════════════════════════════ */

.co { padding-block: clamp(22px, 3.5vw, 40px) var(--gap-section); }
.co__head { display: grid; gap: 12px; margin-bottom: clamp(20px, 3vw, 32px); }
.co__head h1 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); font-weight: 800; letter-spacing: -.03em; }

/* ─── Steps bus ──────────────────────────────────────────── */
.steps { position: relative; margin-top: 8px; }
.steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.steps__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  color: var(--text-mute);
  font-size: .86rem;
  transition: color .3s;
}
.steps__list li span {
  display: inline-grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  font-size: .74rem;
  transition: background-color .3s, border-color .3s, color .3s;
}
.steps__list li.is-on { color: var(--text); }
.steps__list li.is-on span { border-color: var(--green); color: var(--green); box-shadow: 0 0 0 4px var(--green-soft); }
.steps__list li.is-done span { background: var(--green); border-color: var(--green); color: var(--on-green); }
.steps__bar {
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 2px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
}
.steps__bar i {
  display: block;
  height: 100%;
  background: var(--green);
  transform-origin: 100% 50%;
  transform: scaleX(var(--p, .1667));
}
[dir="ltr"] .steps__bar i { transform-origin: 0 50%; }

/* ─── Layout ─────────────────────────────────────────────── */
.co__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, .8fr);
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}
.co__main { display: grid; gap: 14px; min-width: 0; }

.step {
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: var(--surface);
  transition: border-color .3s;
}
.step.is-open { border-color: var(--line-2); }
.step__head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 18px 22px;
}
.step__n { color: var(--text-mute); font-size: .8rem; }
.step.is-open .step__n { color: var(--green); }
.step.is-done .step__n { color: var(--green); }
.step__head h2 { font-size: 1.08rem; outline: none; }
.step:not(.is-open):not(.is-done) .step__head h2 { color: var(--text-mute); }
.step__sum {
  flex-basis: 100%;
  order: 5;
  margin-top: -2px;
  font-size: .84rem;
  color: var(--text-mid);
  padding-inline-start: 34px;
}
.step__edit {
  margin-inline-start: auto;
  border: 0;
  background: none;
  color: var(--green);
  font-weight: 700;
  font-size: .84rem;
  cursor: pointer;
  padding: 8px 4px;
  min-height: 40px;
}
.step__edit:hover { text-decoration: underline; text-underline-offset: 4px; }
.step__body { padding: 0 22px 22px; }
.step__foot { display: flex; justify-content: flex-end; margin-top: 18px; }
.step__foot .btn { min-width: 220px; }

.co__lines { border-top: 1px solid var(--line); }
.co__lines .line:last-child { border-bottom: 0; }
.co__hint {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--surface-2);
  font-size: .78rem;
  color: var(--text-mid);
  line-height: 1.7;
}
.co__hint i { color: var(--green); font-size: 1.05rem; flex-shrink: 0; margin-top: 2px; }

/* ─── Forms ──────────────────────────────────────────────── */
.co__form { display: grid; gap: 18px; }
.co__fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 18px; }
.field--wide { grid-column: 1 / -1; }

.opts { border: 0; margin: 0; padding: 0; display: grid; gap: 8px; }
.opts legend { font-size: .88rem; font-weight: 600; margin-bottom: 8px; padding: 0; }
.opt {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  padding-inline-start: 48px;
  border-radius: var(--r);
  border: 1px solid var(--line-2);
  cursor: pointer;
  transition: border-color .2s, background-color .2s;
}
.opt input {
  position: absolute;
  inset-inline-start: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px; height: 18px;
  margin: 0;
  accent-color: var(--green);
  cursor: pointer;
}
.opt:hover { border-color: var(--green-line); }
.opt:has(input:checked) { border-color: var(--green); background: var(--green-soft); }
.opt:has(input:focus-visible) { outline: 2px solid var(--green); outline-offset: 2px; }
.opt:has(input:disabled) { opacity: .5; cursor: not-allowed; }
.opt__body { display: grid; gap: 2px; }
.opt__body b { font-size: .92rem; }
.opt__body small { font-size: .78rem; color: var(--text-mute); }
.opt__why { font-size: .74rem; color: var(--text-mid); font-weight: 600; }
.opt__price { font-weight: 700; font-size: .9rem; white-space: nowrap; }
.opt__price small { color: var(--text-mute); font-weight: 500; }
.opt__price i { font-size: 1.4rem; color: var(--text-mute); }

.co__safe {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: .8rem;
  color: var(--text-mid);
  line-height: 1.7;
}
.co__safe i { color: var(--green); font-size: 1.1rem; margin-top: 2px; }
.co__terms { display: flex; align-items: flex-start; gap: 10px; font-size: .88rem; cursor: pointer; }
.co__terms input { width: 18px; height: 18px; margin: 4px 0 0; accent-color: var(--green); flex-shrink: 0; }
.co__terms.is-invalid span { text-decoration: underline wavy var(--green-line); text-underline-offset: 5px; }
.co__pay { min-width: 260px; }
.co__pay.is-busy { position: relative; overflow: hidden; }
.co__pay.is-busy::after {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  bottom: 0;
  height: 3px;
  width: 100%;
  background: var(--on-green);
  opacity: .5;
  transform-origin: 100% 50%;
  animation: payBar 1.2s cubic-bezier(.4, 0, .2, 1) forwards;
}
@keyframes payBar { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* ─── Done ───────────────────────────────────────────────── */
.done {
  display: grid;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px);
  border-radius: var(--r);
  border: 1px solid var(--green-line);
  background: linear-gradient(200deg, var(--green-soft), transparent 60%), var(--surface);
  outline: none;
}
.done h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); letter-spacing: -.02em; }
.done [data-order] { font-size: 1.05rem; color: var(--green); direction: ltr; unicode-bidi: isolate; }
.done__log {
  margin: 0 0 6px;
  padding: 14px 16px;
  border-radius: 10px;
  background: var(--ink);
  border: 1px solid var(--line);
  font-size: .76rem;
  line-height: 1.9;
  color: var(--text-mid);
  text-align: left;
  white-space: pre;
  overflow-x: auto;
}
.done__log .ok { color: var(--green); }
.done__demo { display: flex; gap: 8px; font-size: .82rem; color: var(--text-mid); }
.done__demo i { color: var(--green); margin-top: 3px; }
.done__acts { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }

/* ─── Summary ────────────────────────────────────────────── */
.co__aside { position: sticky; top: 90px; }
.co__sum {
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: var(--surface);
  overflow: hidden;
}
.co__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  font-weight: 700;
  font-size: .98rem;
  cursor: default;
  pointer-events: none;
}
.co__toggle b { margin-inline-start: auto; font-size: .9rem; display: none; }
.co__toggle i { display: none; transition: transform .3s var(--ease); }
.co__sumbody { padding: 14px 20px 20px; display: grid; gap: 14px; }
.co__mini { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.co__mini li { display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 10px; font-size: .8rem; }
.co__mini img { width: 44px; height: 33px; object-fit: cover; border-radius: 6px; border: 1px solid var(--line); }
.co__mini b { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.co__mini .qty-tag { font-size: .72rem; color: var(--text-mute); }
.co__mini span:last-child { white-space: nowrap; font-weight: 600; }
.co__trust { list-style: none; margin: 0; padding: 12px 0 0; border-top: 1px solid var(--line); display: grid; gap: 6px; }
.co__trust li { display: flex; align-items: center; gap: 8px; font-size: .78rem; color: var(--text-mute); }
.co__trust i { color: var(--green); }

.co.is-finished .step { display: none; }

@media (max-width: 900px) {
  .co__grid { grid-template-columns: 1fr; }
  .co__aside { position: static; order: -1; }
  .co__toggle { cursor: pointer; pointer-events: auto; border-bottom: 0; }
  .co__toggle b, .co__toggle i { display: inline-block; }
  .co__toggle[aria-expanded="true"] { border-bottom: 1px solid var(--line); }
  .co__toggle[aria-expanded="true"] i { transform: rotate(180deg); }
  .steps__list b { font-size: .78rem; }
}

@media (max-width: 640px) {
  .co__fields { grid-template-columns: 1fr; }
  .step__head, .step__body { padding-inline: 16px; }
  .step__foot .btn, .co__pay { width: 100%; min-width: 0; }
  .steps__list li { flex-direction: column; align-items: flex-start; gap: 6px; }
  .step__sum { padding-inline-start: 0; }
}