/* =============================================================
   Process & Time Management — Dual-Track Gantt
   =============================================================
   Sits below the Verve case study on the homepage. Reuses the
   site's theme tokens (--red, --dk-bg, --dk-text, --dk-text-muted,
   --dk-border, glass surfaces) so it inherits both light + dark
   modes automatically. Bilingual via html[data-lang="zh"].         */

.process-section {
  padding-top: 6rem;
  padding-bottom: 6rem;
}

/* Strip the .stats-component-wrapper background frame inherited from
   the Webflow / theme stylesheets. The Process section already has its
   own internal cards (bars + milestones + summary stats) that carry
   the visual structure; the outer wrapper box was redundant. */
.process-section.stats-component-wrapper,
html[data-theme="dark"] .process-section.stats-component-wrapper {
  background: transparent !important;
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  -webkit-backdrop-filter: none !important;
          backdrop-filter: none !important;
}

.process-header {
  max-width: 720px;
  margin-bottom: 3.5rem;
}

.process-header .tagline-pill {
  display: inline-block;
}

.process-header h2 {
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.process-header .text-size-medium {
  font-size: 1rem;
  line-height: 1.55;
}

/* Track header (W ruler / Design / Collaboration column labels) */
.process-track-header {
  display: grid;
  grid-template-columns: 60px 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1rem;
}

.process-track-header__label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 500;
  color: rgba(0, 0, 0, 0.55);
}

html[data-theme="dark"] .process-track-header__label {
  color: var(--dk-text-muted);
}

/* Three-column scaffold */
.process-grid {
  display: grid;
  grid-template-columns: 60px 1fr 1fr;
  gap: 2rem;
  position: relative;
  --track-h: 1100px;
  height: calc(var(--track-h) + 40px);
}

/* Day-ruler (left column) */
.process-ruler {
  position: relative;
  height: var(--track-h);
}

.process-ruler__tick {
  position: absolute;
  right: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: rgba(0, 0, 0, 0.45);
}

html[data-theme="dark"] .process-ruler__tick {
  color: var(--dk-text-muted);
}

.process-ruler__tick::after {
  content: "";
  width: 6px;
  height: 1px;
  background: rgba(0, 0, 0, 0.12);
}

html[data-theme="dark"] .process-ruler__tick::after {
  background: var(--dk-border);
}

/* Design track (middle column) */
.process-track {
  position: relative;
  height: var(--track-h);
}

.process-track__spine {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: rgba(0, 0, 0, 0.08);
  transform: translateX(-50%);
}

html[data-theme="dark"] .process-track__spine {
  background: var(--dk-border);
}

.process-bar {
  position: absolute;
  left: 0;
  right: 0;
}

.process-bar__fill {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  border-radius: 14px;
  border: 1px solid;
  overflow: hidden;
  transition: height 0.3s linear;
  height: 0;
}

/* Odd phases (1, 3, 5) → solid red */
.process-bar.is-accent .process-bar__fill {
  background: var(--red);
  border-color: var(--red);
  box-shadow: 0 8px 24px rgba(255, 76, 75, 0.20);
}

/* Even phases (2, 4) → glass card */
.process-bar.is-glass .process-bar__fill {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

html[data-theme="dark"] .process-bar.is-glass .process-bar__fill {
  background: var(--dk-glass-bg);
  border-color: var(--dk-glass-border);
  box-shadow: var(--dk-glass-shadow);
  -webkit-backdrop-filter: var(--dk-glass-blur);
          backdrop-filter: var(--dk-glass-blur);
}

/* Bar label (always visible, sits above the fill) */
.process-bar__label {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 18px;
  pointer-events: none;
  overflow: hidden;
}


.process-bar.is-short .process-bar__label {
  padding: 10px 14px 8px;
  gap: 2px;
}

.process-bar.is-accent .process-bar__label {
  color: #ffffff;
}

.process-bar.is-glass .process-bar__label {
  color: var(--black, #1a1a1a);
}

html[data-theme="dark"] .process-bar.is-glass .process-bar__label {
  color: var(--dk-text);
}

.process-bar__label-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.process-bar__num {
  font-size: 11px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  letter-spacing: 0.06em;
  opacity: 0.75;
}

.process-bar__name {
  font-size: 22px;
  font-weight: 400;
  line-height: 1.15;
  margin-top: 2px;
  letter-spacing: -0.01em;
}

.process-bar.is-short .process-bar__name {
  font-size: 17px;
}

.process-bar__weeks {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  padding-top: 2px;
  opacity: 0.85;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Body paragraph — full bilingual description, sits below the heading.
   Smaller / tighter on short bars (P1, P4, P5 = 165px) so the text
   actually fits without clipping. Initial state is hidden + slightly
   shifted down; the per-variant scroll/reveal logic toggles the
   `is-body-visible` (variants 1-3) or `is-revealed` (variants 4-7)
   class on the parent bar to fade it in.                              */
.process-bar__body {
  font-size: 13px;
  line-height: 1.5;
  margin-top: 12px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.55s ease,
              transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.process-bar.is-body-visible .process-bar__body,
.process-bar.is-revealed .process-bar__body {
  opacity: 0.9;
  transform: translateY(0);
}

/* On the red bars, white body needs full opacity for legibility */
.process-bar.is-accent.is-body-visible .process-bar__body,
.process-bar.is-accent.is-revealed .process-bar__body {
  opacity: 1;
}

.process-bar.is-short .process-bar__body {
  font-size: 11px;
  line-height: 1.4;
  margin-top: 6px;
}

/* On the red bars white text needs a touch more weight to read cleanly */
.process-bar.is-accent .process-bar__body {
  color: rgba(255, 255, 255, 0.92);
}

.process-bar.is-glass .process-bar__body {
  color: rgba(0, 0, 0, 0.65);
}

html[data-theme="dark"] .process-bar.is-glass .process-bar__body {
  color: var(--dk-text-muted);
}

/* Collaboration track (right column) */
.process-collab {
  position: relative;
  height: var(--track-h);
}

.process-collab__spine-bg {
  position: absolute;
  left: 14px;
  top: 0;
  width: 1px;
  height: 100%;
  background: rgba(0, 0, 0, 0.08);
  z-index: 0;
}

html[data-theme="dark"] .process-collab__spine-bg {
  background: var(--dk-border);
}

.process-collab__spine-fill {
  position: absolute;
  left: 14px;
  top: 0;
  width: 1px;
  height: 0;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0.4;
  transition: height 0.3s linear;
  z-index: 1;
}

html[data-theme="dark"] .process-collab__spine-fill {
  background: var(--dk-text-muted);
}

.process-milestone {
  position: absolute;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.5s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 2;
}

.process-milestone.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.process-milestone__connector {
  position: absolute;
  right: 100%;
  top: 14px;
  width: 32px;
  height: 1px;
  background: var(--red);
  opacity: 0.5;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.process-milestone.is-visible .process-milestone__connector {
  transform: scaleX(1);
}

.process-milestone__dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 0 0 rgba(255, 76, 75, 0);
  transition: box-shadow 0.4s ease;
}

html[data-theme="dark"] .process-milestone__dot {
  background: var(--dk-bg);
}

.process-milestone.is-visible .process-milestone__dot {
  box-shadow: 0 0 0 4px rgba(255, 76, 75, 0.12);
}

.process-milestone__dot::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
}

.process-milestone__card {
  flex: 1;
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 8px 14px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

html[data-theme="dark"] .process-milestone__card {
  background: var(--dk-glass-bg);
  border-color: var(--dk-glass-border);
  box-shadow: var(--dk-glass-shadow);
  -webkit-backdrop-filter: var(--dk-glass-blur);
          backdrop-filter: var(--dk-glass-blur);
}

.process-milestone__label {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.005em;
}

.process-milestone__meta {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  margin-top: 2px;
  color: rgba(0, 0, 0, 0.55);
}

html[data-theme="dark"] .process-milestone__meta {
  color: var(--dk-text-muted);
}

/* Bilingual text — show one, hide the other */
.l-en { display: inline; }
.l-zh { display: none; }
html[data-lang="zh"] .l-en { display: none; }
html[data-lang="zh"] .l-zh { display: inline; }
.l-en-block { display: block; }
.l-zh-block { display: none; }
html[data-lang="zh"] .l-en-block { display: none; }
html[data-lang="zh"] .l-zh-block { display: block; }

/* Reduced motion — snap to final state */
@media (prefers-reduced-motion: reduce) {
  .process-bar__fill,
  .process-collab__spine-fill,
  .process-milestone,
  .process-milestone__connector {
    transition: none !important;
  }
  .process-milestone {
    opacity: 1;
    transform: translateX(0);
  }
  .process-milestone__connector {
    transform: scaleX(1);
  }
}

/* =============================================================
   Mobile / tablet (≤991px) — single-column stack
   =============================================================
   The desktop layout is a fixed-height 3-column Gantt that only
   makes sense at ≥992px (W ruler + 720px design track + parallel
   collab track). On smaller screens we collapse everything into a
   linear list of cards: bars become full-content cards (no fill
   animation, just the bar's own background), milestones become a
   second list under a "Collaboration" sub-heading. The W ruler is
   hidden — it's noise without the absolute positioning.            */

@media (max-width: 991px) {
  .process-section {
    padding-top: 4rem;
    padding-bottom: 4rem;
  }

  .process-header {
    margin-bottom: 2.5rem;
  }

  .process-track-header { display: none; }

  .process-grid {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    height: auto;
  }

  .process-ruler { display: none; }

  /* ── Design phase bars → vertical card stack ── */
  .process-track {
    height: auto;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    position: relative;
  }

  .process-track::before {
    content: "Design Process";
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-weight: 500;
    color: rgba(0, 0, 0, 0.55);
    margin-bottom: 0.25rem;
  }
  html[data-lang="zh"] .process-track::before { content: "设计流程"; }
  html[data-theme="dark"] .process-track::before { color: var(--dk-text-muted); }

  .process-track__spine { display: none; }

  /* The desktop layout has __fill underneath and __label on top
     (absolute over absolute). On mobile we collapse: the bar itself
     carries the color, __fill is hidden, __label flows in normal
     content order. Initial state hidden + translateY — JS toggles
     `is-revealed` on each bar as it enters viewport (IntersectionObserver).
     Body inherits the same trigger so it fades in with the bar.        */
  .process-bar {
    position: relative !important;
    top: auto !important;
    left: auto;
    right: auto;
    height: auto !important;
    border-radius: 14px;
    border: 1px solid;
    overflow: hidden;
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.55s ease-out,
                transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
  }

  .process-bar.is-revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .process-bar.is-accent {
    background: var(--red);
    border-color: var(--red);
    box-shadow: 0 6px 18px rgba(255, 76, 75, 0.18);
  }

  .process-bar.is-glass {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  }

  html[data-theme="dark"] .process-bar.is-glass {
    background: var(--dk-glass-bg);
    border-color: var(--dk-glass-border);
    box-shadow: var(--dk-glass-shadow);
    -webkit-backdrop-filter: var(--dk-glass-blur);
            backdrop-filter: var(--dk-glass-blur);
  }

  .process-bar__fill { display: none; }

  .process-bar__label {
    position: relative;
    inset: auto;
    padding: 1rem 1.25rem;
    gap: 6px;
  }

  .process-bar__name,
  .process-bar.is-short .process-bar__name {
    font-size: 18px;
  }

  .process-bar__weeks {
    padding-top: 4px;
  }

  .process-bar__body,
  .process-bar.is-short .process-bar__body {
    display: block;
    font-size: 13px;
    line-height: 1.5;
    margin-top: 8px;
  }

  /* ── Collaboration milestones → second list under sub-heading ── */
  .process-collab {
    height: auto;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding-left: 0;
    position: relative;
  }

  .process-collab::before {
    content: "Collaboration";
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-weight: 500;
    color: rgba(0, 0, 0, 0.55);
    margin-bottom: 0.25rem;
  }
  html[data-lang="zh"] .process-collab::before { content: "协作方式"; }
  html[data-theme="dark"] .process-collab::before { color: var(--dk-text-muted); }

  .process-collab__spine-bg,
  .process-collab__spine-fill { display: none; }

  /* Mobile milestones flow as a vertical list. Initial state mirrors
     the bar fade-up: hidden + translateY, then JS toggles `is-visible`
     via IntersectionObserver as the milestone scrolls into view.       */
  .process-milestone {
    position: relative !important;
    top: auto !important;
    left: auto;
    right: auto;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.5s ease-out,
                transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
    gap: 10px;
  }

  .process-milestone.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  .process-milestone__connector { display: none; }

  .process-milestone__dot {
    margin-left: 0;
    width: 22px;
    height: 22px;
  }

  .process-milestone__dot::before {
    width: 6px;
    height: 6px;
  }

  .process-milestone__card {
    padding: 0.6rem 0.85rem;
  }

  .process-milestone__label {
    font-size: 13px;
  }

}

/* Phone (<768px) — tighten further */
@media (max-width: 767px) {
  .process-header h2 {
    font-size: 2rem !important;
  }
  .process-bar__label { padding: 0.85rem 1rem; }
  .process-bar__name,
  .process-bar.is-short .process-bar__name { font-size: 17px; }
  .process-bar__body,
  .process-bar.is-short .process-bar__body { font-size: 12.5px; }
}