/* Jeden riadok registra. V bežnej hustote je to veľký register služieb — hover
   zvýrazní seba a stlčí ostatné riadky (stlčenie riadi obal .ob-register).
   V kompaktnej hustote je to tichý zoznam bodov do stĺpca. */

.ob-register__row {
  --ob-reg-nadpis: #363636;
  --ob-reg-text: var(--c-slate);
  --ob-reg-akcent: var(--c-delft);
  --ob-reg-pas: #fbf9f6;
  --ob-reg-linka: var(--c-hairline);
  --ob-reg-ease: var(--c-ease, cubic-bezier(.22,.61,.36,1));

  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 28px 48px;
  padding: 40px 24px;
  border-top: 1px solid var(--ob-reg-linka);
  box-shadow: inset 0 0 0 0 var(--ob-reg-akcent);
  transition:
    background-color .34s var(--ob-reg-ease),
    box-shadow .34s var(--ob-reg-ease),
    padding .34s var(--ob-reg-ease),
    filter .34s var(--ob-reg-ease),
    opacity .34s var(--ob-reg-ease);
}

/* Párne riadky majú teplý pás, aby sa zoznam čítal po riadkoch. */
.ob-register > :nth-child(even) .ob-register__row {
  background-color: var(--ob-reg-pas);
}

.ob-register__row:hover {
  background-color: var(--c-paper);
  box-shadow: inset 3px 0 0 0 var(--ob-reg-akcent);
  padding-left: 34px;
}

.ob-register:hover .ob-register__row:not(:hover) {
  filter: blur(1.6px);
  opacity: .45;
}

/* Ľavý index — číslo a disciplína. */
.ob-register__index {
  flex: 0 0 180px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.ob-register__num {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -.04em;
  line-height: 1;
  color: var(--ob-reg-akcent);
  font-variant-numeric: tabular-nums;
}

.ob-register__label {
  font-family: var(--c-font-mono);
  font-size: 13px;
  font-weight: 100;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--c-ash);
  transition:
    font-size .42s var(--ob-reg-ease),
    color .42s var(--ob-reg-ease);
}

.ob-register__label:empty {
  display: none;
}

.ob-register__row:hover .ob-register__label {
  font-size: 15px;
  color: var(--c-ink);
}

/* Telo riadku — nadpis a popis. */
.ob-register__body {
  flex: 1 1 340px;
  min-width: 0;
}

.ob-register__title {
  margin: 0;
  max-width: 22ch;
  font-size: 26px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.025em;
  color: var(--ob-reg-nadpis);
  text-wrap: balance;
}

.ob-register__text {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ob-reg-text);
  text-wrap: pretty;
}

.ob-register__text:empty {
  display: none;
}

/* Tlačidlo vpravo — pri hoveri sa vyplní diagonálnym prechodom. */
.ob-register__cta {
  flex: none;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: 9999px;
  border: 1px solid var(--ob-reg-akcent);
  font-size: 14px;
  font-weight: 500;
  color: var(--ob-reg-akcent);
  text-decoration: none;
  white-space: nowrap;
  background-color: transparent;
  background-image: linear-gradient(120deg,
    rgba(46,94,168,0) 0%,
    rgba(46,94,168,0) 45%,
    #2e5ea8 55%,
    #1d4278 100%);
  background-size: 220% 100%;
  background-repeat: no-repeat;
  background-position: 0% 0;
  transition:
    background-position .55s var(--ob-reg-ease),
    color .3s var(--ob-reg-ease),
    border-color .3s var(--ob-reg-ease);
}

.ob-register__cta:hover {
  background-position: 100% 0;
  color: #fff;
  border-color: var(--c-deep-delft);
}

.ob-register__cta:empty {
  display: none;
}

/* ── Kompaktná hustota — tichý zoznam bodov ─────────────────────────── */

.ob-register__row--kompakt {
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 18px;
  padding: 26px 0;
}

.ob-register > :nth-child(even) .ob-register__row--kompakt {
  background-color: transparent;
}

.ob-register__row--kompakt:hover {
  background-color: transparent;
  box-shadow: none;
  padding-left: 0;
}

.ob-register:hover .ob-register__row--kompakt:not(:hover) {
  filter: none;
  opacity: 1;
}

.ob-register__row--kompakt .ob-register__index {
  flex: 0 0 auto;
  padding-top: 3px;
}

.ob-register__row--kompakt .ob-register__num {
  font-family: var(--c-font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .04em;
}

.ob-register__row--kompakt .ob-register__title {
  max-width: 32ch;
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: -.015em;
}

.ob-register__row--kompakt .ob-register__text {
  margin-top: 8px;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.6;
}

.ob-register__row--kompakt .ob-register__cta {
  padding: 8px 16px;
  font-size: 13px;
}

@media (max-width: 720px) {
  .ob-register__row {
    padding: 32px 16px;
    gap: 20px 32px;
  }

  .ob-register__row:hover {
    padding-left: 24px;
  }

  .ob-register__cta {
    margin-left: 0;
  }

  .ob-register__row--kompakt {
    padding: 22px 0;
    gap: 14px;
  }
}

/* Na dotyku niet hoveru, stlčenie ostatných riadkov by len prekážalo. */
@media (hover: none) {
  .ob-register:hover .ob-register__row:not(:hover) {
    filter: none;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ob-register__row,
  .ob-register__label,
  .ob-register__cta {
    transition: none;
  }

  .ob-register:hover .ob-register__row:not(:hover) {
    filter: none;
    opacity: .6;
  }
}