/* ============================================================
   PROCESS SECTION — SPLIT PANEL LAYOUT
   Left: sticky headline + vertical pipeline
   Right: scrolling card stack
   Fully responsive: mobile-sm → mobile → tablet → desktop → desktop-lg
   ============================================================ */

#process {
  position: relative;
  background: var(--bg);
}

/* ── SPLIT CONTAINER ── */
.process-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  max-width: var(--cw);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 60px);
  min-height: 100vh;
  /* Section height = right column content height.
     min-height ensures sticky left has room before cards are rendered.
     On large screens where all cards fit < 100vh, the section will be
     at least 100vh tall, giving enough scroll distance for all nodes. */
}

/* Ensure section always scrollable — right column extends far enough
   to drive the pipeline through all 5 nodes. */
@media (min-height: 1000px) {
  .process-right {
    padding-bottom: 40vh; /* extra scroll room on tall viewports */
  }
}

/* ── LEFT COLUMN — STICKY ── */
.process-left {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  padding: 80px 60px 80px 0;
}

.process-left-inner {
  display: flex;
  flex-direction: column;
  gap: 48px;
  width: 100%;
}

.process-eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 0;
}

.process-headline {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--t1);
  margin: 0;
}

.process-headline .word {
  display: block;
}

/* ── VERTICAL PIPELINE TRACK ── */
.process-pipeline-track {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: 20px;
}

.pipeline-line-bg {
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--bh);
}

.pipeline-line-fill {
  position: absolute;
  left: 6px;
  top: 8px;
  width: 1px;
  height: 100%;
  background: var(--accent);
  transform-origin: top center;
  transform: scaleY(0);
  box-shadow: 0 0 8px rgba(0, 170, 255, 0.5);
  transition: transform 0.3s ease;
}

.pipeline-node {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  position: relative;
  z-index: 1;
}

.node-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid var(--bc);
  background: var(--bg);
  flex-shrink: 0;
  transition: border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.node-label {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--t3);
  text-transform: uppercase;
  transition: color 0.3s ease;
}

/* ACTIVE STATE */
.pipeline-node.active .node-dot {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 170, 255, 0.15), 0 0 12px rgba(0, 170, 255, 0.4);
  animation: node-pulse-left 1.4s ease-out infinite;
}

.pipeline-node.active .node-label {
  color: var(--accent);
}

/* COMPLETED STATE */
.pipeline-node.done .node-dot {
  border-color: var(--accent);
  background: rgba(0, 170, 255, 0.2);
}

.pipeline-node.done .node-label {
  color: var(--t2);
}

@keyframes node-pulse-left {
  0%   { box-shadow: 0 0 0 0 rgba(0, 170, 255, 0.5), 0 0 8px rgba(0, 170, 255, 0.3); }
  70%  { box-shadow: 0 0 0 8px rgba(0, 170, 255, 0), 0 0 16px rgba(0, 170, 255, 0.2); }
  100% { box-shadow: 0 0 0 0 rgba(0, 170, 255, 0), 0 0 8px rgba(0, 170, 255, 0.3); }
}

/* ── RIGHT COLUMN — SCROLLING CARDS ── */
.process-right {
  display: flex;
  flex-direction: column;
  padding: 80px 0 80px 60px;
  gap: 24px;
  border-left: 1px solid var(--bh);
}

.process-card {
  position: relative;
  opacity: 0;
  transform: translateY(32px);
  will-change: opacity, transform;
}

.card-inner {
  background: var(--panel);
  border: 1px solid var(--bc);
  border-radius: 2px;
  padding: clamp(28px, 3vw, 48px);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s ease, background 0.3s ease;

  --bracket-size: 12px;
  --bracket-color: rgba(0, 170, 255, 0.25);
}

.card-inner::before,
.card-inner::after {
  content: '';
  position: absolute;
  width: var(--bracket-size);
  height: var(--bracket-size);
  border-color: var(--bracket-color);
  border-style: solid;
  transition: border-color 0.3s ease;
}

.card-inner::before {
  top: 8px;
  left: 8px;
  border-width: 1px 0 0 1px;
}

.card-inner::after {
  bottom: 8px;
  right: 8px;
  border-width: 0 1px 1px 0;
}

.process-card.active .card-inner {
  border-color: rgba(0, 170, 255, 0.35);
  background: rgba(0, 170, 255, 0.03);
}

.process-card.active .card-inner::before,
.process-card.active .card-inner::after {
  border-color: rgba(0, 170, 255, 0.5);
}

.card-number {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin: 0 0 16px 0;
  text-transform: uppercase;
}

.card-title {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 700;
  color: var(--t1);
  line-height: 1.2;
  margin: 0 0 12px 0;
  letter-spacing: -0.01em;
}

.card-body {
  font-size: 14px;
  line-height: 1.7;
  color: var(--t2);
  margin: 0;
}

/* ── RESPONSIVE: Tablet (≤1024px) ── */
@media (max-width: 1024px) {
  .process-split {
    gap: 0;
  }
  .process-left {
    padding: 60px 32px 60px 0;
  }
  .process-right {
    padding: 60px 0 60px 32px;
  }
  .process-headline {
    font-size: clamp(28px, 4.5vw, 56px);
  }
  .process-pipeline-track {
    padding-left: 16px;
  }
  .pipeline-node {
    gap: 12px;
    padding: 14px 0;
  }
}

/* ── RESPONSIVE: Mobile (≤768px) — stack vertically ── */
@media (max-width: 768px) {
  .process-split {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .process-left {
    position: static;
    height: auto;
    padding: 60px 0 0 0;
    align-items: flex-start;
  }

  .process-left-inner {
    gap: 32px;
  }

  .process-headline {
    font-size: clamp(28px, 8vw, 48px);
  }

  .process-right {
    padding: 32px 0 60px 0;
    border-left: none;
    border-top: 1px solid var(--bh);
    gap: 16px;
  }

  .process-pipeline-track {
    flex-direction: row;
    align-items: center;
    padding-left: 0;
    padding-top: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 0;
    margin: 0 -20px;
    padding: 0 20px 8px;
  }

  .pipeline-line-bg,
  .pipeline-line-fill {
    top: 6px;
    left: 28px;
    right: 28px;
    bottom: auto;
    width: auto;
    height: 1px;
    transform-origin: left center;
  }

  .pipeline-line-fill {
    transform: scaleX(0);
  }

  .pipeline-node {
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 0 16px;
    min-width: 64px;
  }

  .node-label {
    white-space: nowrap;
    font-size: 9px;
  }

  /* Cards: reveal all at once on mobile */
  .process-card {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ── RESPONSIVE: Small Phones (≤480px) ── */
@media (max-width: 480px) {
  .process-left {
    padding: 40px 0 0 0;
  }

  .process-left-inner {
    gap: 24px;
  }

  .process-eyebrow {
    font-size: 10px;
    letter-spacing: 0.14em;
  }

  .process-headline {
    font-size: clamp(26px, 9vw, 36px);
  }

  .process-right {
    padding: 24px 0 40px 0;
    gap: 12px;
  }

  .process-pipeline-track {
    margin: 0 -16px;
    padding: 0 16px 8px;
  }

  .pipeline-line-bg,
  .pipeline-line-fill {
    left: 24px;
    right: 24px;
  }

  .pipeline-node {
    padding: 0 12px;
    min-width: 56px;
    gap: 6px;
  }

  .node-dot {
    width: 10px;
    height: 10px;
  }

  .node-label {
    font-size: 8px;
    letter-spacing: 0.1em;
  }

  .card-inner {
    padding: 20px;
    --bracket-size: 8px;
  }

  .card-title {
    font-size: 18px;
  }

  .card-body {
    font-size: 13px;
    line-height: 1.6;
  }
}

/* ── RESPONSIVE: Large Desktop (>1440px) ── */
@media (min-width: 1441px) {
  .process-left {
    padding: 100px 80px 100px 0;
  }
  .process-right {
    padding: 100px 0 100px 80px;
  }
  .process-right {
    padding-bottom: 50vh; /* plenty of scroll room */
  }
  .process-headline {
    font-size: clamp(48px, 5vw, 80px);
  }
}