/* ==========================================================================
   How It Works Section
   ========================================================================== */

.how-it-works {
  min-height: 100vh;
  background-color: var(--color-jet-black);
  display: flex;
  align-items: center;
  padding-block: var(--space-10) var(--space-12);
  box-sizing: border-box;
}

.how-it-works__inner {
  /* layout handled by .container--wide utility */
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* --------------------------------------------------------------------------
   Section header
   -------------------------------------------------------------------------- */
.how-it-works__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 640px;
}

.how-it-works__eyebrow {
  font-family: var(--font-text);
  font-size: var(--font-size-caption);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-frozen-blue);
  margin: 0;
}

.how-it-works__title {
  font-family: var(--font-display);
  font-weight: var(--font-weight-black);
  font-size: var(--font-size-display-md);
  line-height: var(--line-height-display);
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin: 0;
}

.how-it-works__description {
  font-family: var(--font-text);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-light-grey-2);
  opacity: 0.75;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Steps row
   -------------------------------------------------------------------------- */
.how-it-works__steps {
  display: grid;
  grid-template-columns: 1fr 40px 1fr 40px 1fr;
  align-items: start;
  gap: 0;
}

/* --------------------------------------------------------------------------
   Individual step card
   -------------------------------------------------------------------------- */
.hiw-step {
  background-color: var(--color-dark-grey-1);
  border: 1px solid var(--color-dark-grey-2);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-4) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  height: 100%;
  box-sizing: border-box;
}

.hiw-step__number {
  font-family: var(--font-display);
  font-size: var(--font-size-display-xl);
  font-weight: var(--font-weight-black);
  color: rgba(5, 195, 222, 0.5);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: -8px;
}

.hiw-step__icon {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.hiw-step__title {
  font-family: var(--font-display);
  font-size: var(--font-size-heading-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  line-height: var(--line-height-heading);
  letter-spacing: -0.01em;
  margin: 0;
}

.hiw-step__text {
  font-family: var(--font-text);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-light-grey-2);
  opacity: 0.8;
  margin: 0;
}

.hiw-step__benefits {
  list-style: none;
  margin: var(--space-1) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--color-dark-grey-2);
  padding-top: var(--space-2);
}

.hiw-step__benefits li {
  font-family: var(--font-text);
  font-size: var(--font-size-small);
  color: var(--color-light-grey-2);
  line-height: 1.5;
  padding-left: 16px;
  position: relative;
}

.hiw-step__benefits li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-frozen-blue);
}

/* --------------------------------------------------------------------------
   Connector arrows between steps
   -------------------------------------------------------------------------- */
.hiw-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 120px; /* roughly centres against the step cards */
}

/* --------------------------------------------------------------------------
   Process Flow (alternative layout)
   -------------------------------------------------------------------------- */
.hiw-flow {
  width: 100%;
}

.hiw-flow__steps {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
}

/* Each column: border-top forms the continuous track line */
.hiw-flow__step {
  position: relative;
  border-top: 1px solid var(--color-dark-grey-2);
  padding-top: var(--space-10);
  padding-inline: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Vertical connector line from dot down to content */
.hiw-flow__step::after {
  content: '';
  position: absolute;
  top: 6px;
  left: calc(var(--space-4) + 6px); /* centre of 13px dot */
  width: 1px;
  height: calc(var(--space-10) - 13px);
  background: linear-gradient(to bottom, var(--color-frozen-blue), transparent);
  opacity: 0.35;
}

/* Frozen Blue node dot on the track line */
.hiw-flow__step::before {
  content: '';
  position: absolute;
  top: -7px;
  left: var(--space-4);
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background-color: var(--color-frozen-blue);
  box-shadow: 0 0 0 4px rgba(5, 195, 222, 0.15);
}

.hiw-flow__number {
  font-family: var(--font-text);
  font-size: var(--font-size-small);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-frozen-blue);
  line-height: 1;
  position: absolute;
  /* above the dot: dot top is -7px, number sits above with a small gap */
  top: -36px;
  left: var(--space-4);
}

.hiw-flow__title {
  font-family: var(--font-display);
  font-size: var(--font-size-heading-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  line-height: var(--line-height-heading);
  letter-spacing: -0.01em;
  margin: 0;
}

.hiw-flow__text {
  font-family: var(--font-text);
  font-size: var(--font-size-body);
  line-height: var(--line-height-body);
  color: var(--color-light-grey-2);
  opacity: 0.8;
  margin: 0;
}

.hiw-flow__benefits {
  list-style: none;
  margin: var(--space-1) 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--color-dark-grey-2);
  padding-top: var(--space-2);
}

.hiw-flow__benefits li {
  font-family: var(--font-text);
  font-size: var(--font-size-small);
  color: var(--color-light-grey-2);
  line-height: 1.5;
  padding-left: 16px;
  position: relative;
}

.hiw-flow__benefits li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-frozen-blue);
  opacity: 0.6;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .how-it-works__steps {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .hiw-connector {
    padding-top: 0;
    padding-block: var(--space-1);
    transform: rotate(90deg);
  }

  .hiw-flow__steps {
    grid-template-columns: 1fr;
  }

  .hiw-flow__step:not(:last-child) {
    border-bottom: 1px solid var(--color-dark-grey-2);
    padding-bottom: var(--space-5);
    margin-bottom: var(--space-1);
  }

  .hiw-flow__step::before {
    top: -5px;
  }

  .hiw-flow__step:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .how-it-works__header {
    max-width: 100%;
  }
}