/* ======================================================
   PRIVOZ — EXPERT
   BLOCK 04: PROCESS
   HORIZONTAL SCROLL
====================================================== */

/* Для корректной работы position: sticky */

.expert-page {
  overflow: visible;
}

/* ======================================================
   ОСНОВНАЯ СЕКЦИЯ
====================================================== */

.expert-page .expert-process {
  position: relative;
  min-height: 100vh;

  background: #ffffff;
}

.expert-page .expert-process,
.expert-page .expert-process *,
.expert-page .expert-process *::before,
.expert-page .expert-process *::after {
  box-sizing: border-box;
}

/* ======================================================
   ЗАКРЕПЛЁННАЯ ОБЛАСТЬ
====================================================== */

.expert-page .expert-process-sticky {
  position: sticky;
  top: var(--header-height, 80px);

  display: flex;
  align-items: center;

  min-height: 650px;
  height: calc(100vh - var(--header-height, 80px));

  overflow: hidden;
  background: #ffffff;
}

/* ======================================================
   ЗАГОЛОВОК
====================================================== */

.expert-page .expert-process-head {
  max-width: 900px;
  margin-bottom: 75px;
}

.expert-page .expert-process-head .expert-section-label {
  margin-bottom: 22px;
}

.expert-page .expert-process-head h2 {
  margin: 0;

  color: var(--expert-text-dark);

  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: clamp(46px, 5vw, 72px);
  font-weight: 500;

  line-height: 1;
  letter-spacing: -0.055em;
}

.expert-page .expert-process-head h2 span {
  display: block;
  color: var(--expert-accent);
}

/* ======================================================
   ГОРИЗОНТАЛЬНАЯ ОБЛАСТЬ
====================================================== */

.expert-page .expert-process-viewport {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.expert-page .expert-process-track {
  position: relative;

  display: flex;
  gap: 18px;

  width: max-content;
  min-width: 100%;

  padding: 40px 0 15px;

  will-change: transform;
}

/* ======================================================
   ЛИНИЯ ПРОГРЕССА
====================================================== */

.expert-page .expert-process-line {
  position: absolute;

  top: 12px;
  left: 0;

  width: 100%;
  height: 2px;

  background: rgba(var(--expert-accent-rgb), 0.15);
}

.expert-page .expert-process-progress {
  position: absolute;

  top: 0;
  left: 0;

  width: 0%;
  height: 100%;

  background: linear-gradient(
    90deg,
    var(--expert-accent-dark),
    var(--expert-accent)
  );
}

.expert-page .expert-process-marker {
  position: absolute;

  top: 50%;
  left: 0;

  width: 11px;
  height: 11px;

  border-radius: 50%;
  background: #ffffff;

  box-shadow:
    0 0 10px rgba(var(--expert-accent-rgb), 0.85),
    0 0 22px rgba(var(--expert-accent-rgb), 0.45);

  transform: translate(-50%, -50%);
}

/* ======================================================
   КАРТОЧКИ ЭТАПОВ
====================================================== */

.expert-page .expert-process-step {
  flex: 0 0 clamp(270px, 27vw, 385px);

  display: flex;
  flex-direction: column;

  min-width: 0;
  min-height: 255px;

  padding: 28px;

  background: #ffffff;
  border: 1px solid var(--expert-border);

  clip-path: polygon(
    12px 0,
    100% 0,
    100% calc(100% - 12px),
    calc(100% - 12px) 100%,
    0 100%,
    0 12px
  );

  transition:
    background 0.3s ease,
    transform 0.3s ease;
}

.expert-page .expert-process-step:hover {
  background: var(--expert-bg-soft);
  transform: translateY(-5px);
}

/* НОМЕР ЭТАПА */

.expert-page .expert-process-step > span {
  display: block;
  margin-bottom: 30px;

  color: var(--expert-accent);

  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

/* НАЗВАНИЕ */

.expert-page .expert-process-step h3 {
  margin: 0 0 12px;

  color: var(--expert-text-dark);

  font-size: 23px;
  font-weight: 500;
  line-height: 1.25;
}

/* ОПИСАНИЕ */

.expert-page .expert-process-step p {
  margin: 0;

  color: var(--expert-text-soft);

  font-size: 13px;
  line-height: 1.6;
}

/* ======================================================
   ПЛАНШЕТЫ
====================================================== */

@media (max-width: 1120px) {

  .expert-page .expert-process {
    min-height: 0 !important;
    height: auto !important;

    padding: 95px 0 105px;
  }

  .expert-page .expert-process-sticky {
    position: static;

    display: block;

    min-height: 0;
    height: auto;

    overflow: visible;
  }

  .expert-page .expert-process-viewport {
    overflow: visible;
  }

  .expert-page .expert-process-track {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));

    width: 100%;
    gap: 18px;
    padding: 0;

    transform: none !important;
    will-change: auto;
  }

  .expert-page .expert-process-line {
    display: none;
  }

  .expert-page .expert-process-step {
    min-height: 220px;
  }
}

/* ======================================================
   МОБИЛЬНАЯ ВЕРСИЯ
====================================================== */

@media (max-width: 768px) {

  .expert-page .expert-process {
    padding: 75px 0 85px;
  }

  .expert-page .expert-process-head {
    margin-bottom: 40px;
  }

  .expert-page .expert-process-head h2 {
    font-size: clamp(39px, 10vw, 54px);
  }

  .expert-page .expert-process-track {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .expert-page .expert-process-step {
    min-height: 190px;
    padding: 24px;
  }

  .expert-page .expert-process-step > span {
    margin-bottom: 24px;
  }

  .expert-page .expert-process-step h3 {
    font-size: 21px;
  }
}

@media (max-width: 430px) {

  .expert-page .expert-process-head h2 {
    font-size: clamp(35px, 9vw, 44px);
  }

  .expert-page .expert-process-step {
    padding: 22px;
  }
}

/* ======================================================
   REDUCED MOTION
====================================================== */

@media (prefers-reduced-motion: reduce) {

  .expert-page .expert-process {
    height: auto !important;
    min-height: 0 !important;
    padding: 95px 0;
  }

  .expert-page .expert-process-sticky {
    position: static;
    display: block;
    min-height: 0;
    height: auto;
    overflow: visible;
  }

  .expert-page .expert-process-viewport {
    overflow: visible;
  }

  .expert-page .expert-process-track {
    display: grid;
    grid-template-columns: repeat(
      auto-fit,
      minmax(min(100%, 270px), 1fr)
    );
    width: 100%;
    padding: 0;
    transform: none !important;
    will-change: auto;
  }

  .expert-page .expert-process-line {
    display: none;
  }

  .expert-page .expert-process-step {
    transition: none;
  }

  .expert-page .expert-process-step:hover {
    transform: none;
  }
}