/* Process timeline — Tilitoimistokilpailutus (TrustHub layout, see docs/DESIGN.md) */

.trust-hub {
  --trust-primary: #00685f;
  --trust-primary-dark: #005049;
  --trust-primary-soft: rgba(0, 104, 95, 0.1);
  --trust-surface: #ffffff;
  --trust-surface-dim: #f2f4f6;
  --trust-border: #eceef0;
  --trust-text: #191c1e;
  --trust-text-muted: #3d4947;
  --trust-text-subtle: #6d7a77;
  --trust-font-display: "Hanken Grotesk", system-ui, sans-serif;
  --trust-font-sans: "Inter", system-ui, sans-serif;
  --trust-space-sm: 0.5rem;
  --trust-space-md: 1rem;
  --trust-space-lg: 1.5rem;
  --trust-space-xl: 2rem;
  --trust-radius: 14px;
  --trust-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.02), 0 12px 24px rgba(0, 0, 0, 0.02);
  --trust-shadow: 0 4px 8px rgba(0, 0, 0, 0.02), 0 20px 40px rgba(0, 104, 95, 0.06);
  --trust-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

.trust-hub__inner {
  position: relative;
}

.trust-hub .reveal-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.62s cubic-bezier(0.33, 1, 0.68, 1);
}

.trust-hub .reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.trust-hub__track .reveal-on-scroll:nth-child(1).is-visible {
  transition-delay: 0s;
}

.trust-hub__track .reveal-on-scroll:nth-child(2).is-visible {
  transition-delay: 0.06s;
}

.trust-hub__track .reveal-on-scroll:nth-child(3).is-visible {
  transition-delay: 0.12s;
}

@media (prefers-reduced-motion: reduce) {
  .trust-hub .reveal-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

.trust-hub__header {
  max-width: 46rem;
  margin: 0 auto clamp(2rem, 4vw, 2.75rem);
  text-align: center;
}

.trust-hub__title {
  margin: 0 0 var(--trust-space-md);
  font-family: var(--trust-font-display);
  font-size: clamp(1.5rem, 3.2vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.15;
  color: var(--trust-text);
}

.trust-hub__lede {
  margin: 0 auto;
  font-family: var(--trust-font-sans);
  font-size: clamp(1rem, 1.5vw, 1.0625rem);
  line-height: 1.6;
  color: var(--trust-text-muted);
  max-width: 42rem;
}

.trust-hub__timeline {
  position: relative;
}

.trust-hub__rail {
  position: absolute;
  pointer-events: none;
  z-index: 0;
}

.trust-hub__rail--h {
  display: none;
}

.trust-hub__rail--v {
  left: calc(1.375rem - 1px);
  top: 1.375rem;
  bottom: 1.375rem;
  width: 2px;
  border-radius: 1px;
  background: linear-gradient(
    180deg,
    rgba(0, 104, 95, 0.45) 0%,
    var(--trust-border) 22%,
    var(--trust-border) 78%,
    rgba(0, 104, 95, 0.35) 100%
  );
}

.trust-hub__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 3vw, 1.75rem);
  position: relative;
  z-index: 1;
}

.trust-hub__step {
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  gap: var(--trust-space-md);
  align-items: start;
}

.trust-hub__marker {
  position: relative;
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.trust-hub__marker::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: calc(2.75rem - 6px);
  height: calc(2.75rem - 6px);
  border-radius: 50%;
  z-index: 0;
  background: linear-gradient(178deg, #fafbfc 0%, var(--trust-surface) 42%, var(--trust-surface-dim) 100%);
  pointer-events: none;
}

.trust-hub__marker-inner {
  position: relative;
  z-index: 1;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--trust-font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--trust-primary);
  background: transparent;
  border: 2px solid var(--trust-primary);
  box-shadow: 0 2px 10px rgba(0, 104, 95, 0.08);
}

.trust-hub__panel {
  margin: 0;
  padding: var(--trust-space-md) var(--trust-space-lg);
  border-radius: var(--trust-radius);
  border: 1px solid var(--trust-border);
  background: linear-gradient(155deg, var(--trust-surface) 0%, var(--trust-surface-dim) 120%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset, var(--trust-shadow-sm);
  transition: border-color var(--trust-transition), box-shadow var(--trust-transition), transform var(--trust-transition);
}

.trust-hub__panel:hover {
  border-color: rgba(0, 104, 95, 0.22);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 1) inset, var(--trust-shadow);
  transform: translateY(-2px);
}

.trust-hub__panel--featured {
  border-color: rgba(0, 104, 95, 0.16);
  background: linear-gradient(
    160deg,
    var(--trust-surface) 0%,
    rgba(0, 104, 95, 0.03) 42%,
    var(--trust-surface) 100%
  );
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95) inset,
    0 0 0 1px rgba(0, 104, 95, 0.05),
    var(--trust-shadow-sm);
}

.trust-hub__panel--featured:hover {
  border-color: rgba(0, 104, 95, 0.32);
}

.trust-hub__headline {
  margin: 0 0 var(--trust-space-sm);
  font-family: var(--trust-font-display);
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.22;
  color: var(--trust-text);
}

.trust-hub__em {
  color: var(--trust-primary);
}

.trust-hub__detail {
  margin: 0;
  font-family: var(--trust-font-sans);
  font-size: 0.9375rem;
  line-height: 1.55;
  color: var(--trust-text-muted);
}

.trust-hub__detail + .trust-hub__detail {
  margin-top: 0.5rem;
}

@media (min-width: 961px) {
  .trust-hub__rail--v {
    display: none;
  }

  .trust-hub__rail--h {
    display: block;
    left: 10%;
    right: 10%;
    top: 1.375rem;
    height: 2px;
    background: linear-gradient(
      90deg,
      rgba(0, 104, 95, 0.35) 0%,
      var(--trust-border) 12%,
      var(--trust-border) 88%,
      rgba(0, 104, 95, 0.3) 100%
    );
    border-radius: 1px;
  }

  .trust-hub__track--steps-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(0.65rem, 1.5vw, 1rem);
    align-items: stretch;
  }

  .trust-hub__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--trust-space-md);
    min-height: 100%;
  }

  .trust-hub__panel {
    width: 100%;
    text-align: left;
    padding: var(--trust-space-md);
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .trust-hub__detail {
    flex-grow: 1;
  }
}

@media (max-width: 560px) {
  .trust-hub__step {
    grid-template-columns: 2.5rem 1fr;
    gap: var(--trust-space-sm);
  }

  .trust-hub__marker,
  .trust-hub__marker-inner {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 0.72rem;
  }

  .trust-hub__marker::before {
    width: calc(2.5rem - 6px);
    height: calc(2.5rem - 6px);
  }

  .trust-hub__rail--v {
    left: calc(1.25rem - 1px);
  }
}