/* ═══════════════════════════════════════════════════════════
   SOLARIX — HOW IT WORKS PAGE
   Phase 5: Hero, 4 Process Steps, 30-Day Timeline, CTA
   ═══════════════════════════════════════════════════════════ */


/* ── HIW HERO ────────────────────────────────────────────── */

.hiw-hero {
  position: relative;
  padding: calc(var(--nav-height) + 80px) 0 var(--sp-9);
  text-align: center;
  overflow: hidden;
}

.hiw-hero-fluid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
}

.hiw-hero-blob {
  position: absolute;
  width: 600px;
  height: 500px;
  top: -15%;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 60% 40% 70% 30% / 50% 60% 40% 70%;
  background: radial-gradient(
    ellipse,
    rgba(255,107,43,0.09) 0%,
    rgba(232,48,42,0.04) 50%,
    transparent 75%
  );
  filter: blur(80px);
  animation: hiw-blob-morph 16s ease-in-out infinite;
  will-change: border-radius, transform;
}

@keyframes hiw-blob-morph {
  0%, 100% {
    border-radius: 60% 40% 70% 30% / 50% 60% 40% 70%;
    transform: translateX(-50%) scale(1);
  }
  33% {
    border-radius: 40% 60% 30% 70% / 60% 40% 70% 30%;
    transform: translateX(-50%) scale(1.04);
  }
  66% {
    border-radius: 70% 30% 50% 50% / 30% 70% 60% 40%;
    transform: translateX(-50%) scale(0.97);
  }
}

.hiw-hero-inner {
  position: relative;
  z-index: 2;
}

.hiw-hero-title {
  font-family: var(--font-display);
  line-height: 0.9;
  letter-spacing: 0.02em;
  margin: var(--sp-4) 0 var(--sp-5);
}

.hiw-hero-line-1 {
  display: block;
  font-size: clamp(60px, 8vw, 80px);
  color: var(--white);
}

.hiw-hero-line-2 {
  display: block;
  font-size: clamp(80px, 10vw, 100px);
  background: var(--warm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 40px rgba(255,107,43,0.4));
}

.hiw-hero-sub {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--white-40);
  max-width: 520px;
  margin: 0 auto;
}


/* ── PROCESS STEP BASE ───────────────────────────────────── */

.process-step {
  position: relative;
  padding: var(--sp-9) 0;
  overflow: hidden;
}

.process-step--surface {
  background: var(--surface);
}

/* ── Step watermark number — 200px Bebas behind content ── */
.step-watermark {
  position: absolute;
  font-family: var(--font-display);
  font-size: clamp(140px, 18vw, 200px);
  color: var(--white-03);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  top: 50%;
  transform: translateY(-50%);
  letter-spacing: -0.02em;
}

/* Odd steps (01, 03): watermark right edge */
.process-step--odd .step-watermark {
  right: -1%;
}

/* Even steps (02, 04): watermark left edge */
.process-step--even .step-watermark {
  left: -1%;
}

/* ── Step grid ── */
.step-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 45fr 55fr;
  gap: var(--sp-8);
  align-items: center;
}

.step-grid--reversed {
  grid-template-columns: 55fr 45fr;
}

.step-grid--reversed .step-content { order: 2; }
.step-grid--reversed .step-card    { order: 1; }

/* ── Step copy column ── */
.step-badge {
  margin-bottom: var(--sp-5);
}

.step-title {
  font-family: var(--font-display);
  font-size: clamp(44px, 5vw, 64px);
  line-height: 0.95;
  letter-spacing: 0.02em;
  color: var(--white);
  margin-bottom: var(--sp-5);
}

.step-body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--white-40);
  max-width: 420px;
  margin-bottom: var(--sp-5);
}

/* Timeframe callout pill */
.step-callout {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  background: var(--white-06);
  border: 1px solid var(--border-med);
  border-radius: var(--r-pill);
  padding: 8px 18px;
}

.step-callout-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
}

.step-callout-value {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.05em;
  line-height: 1;
}

.step-callout-value--warm { color: var(--warm-1); }
.step-callout-value--cold { color: var(--cold-1); }

/* ── Step card inner padding ── */
.step-card {
  padding: var(--sp-6);
}

.step-card.glass-card--warm {
  border-top: 3px solid var(--warm-1);
}

.step-card.glass-card--cold {
  border-top: 3px solid var(--cold-1);
}

/* Shared DM Mono card header with trailing rule */
.step-card-header {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--sp-5);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.step-card-header::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}


/* ── STEP 01 — AUDIT CHECKLIST ───────────────────────────── */

.audit-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.audit-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--white-80);
}

.audit-check {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 1px;
  color: var(--warm-1);
}


/* ── STEP 02 — ARCHITECTURE DIAGRAM ─────────────────────── */

.arch-diagram {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: var(--sp-4);
}

.arch-node {
  flex: 1;
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--sp-4) var(--sp-3);
  text-align: center;
}

/* Middle AI ENGINE node — dual warm/cold gradient border */
.arch-node--engine {
  background: linear-gradient(135deg,
    rgba(255,107,43,0.06) 0%,
    rgba(45,106,255,0.06) 100%
  );
  border-color: var(--border-med);
  box-shadow:
    0 0 0 1px rgba(255,107,43,0.15),
    0 0 20px rgba(255,107,43,0.06),
    inset 0 0 0 1px rgba(45,106,255,0.10);
  position: relative;
}

.arch-node-label {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: var(--sp-2);
}

.arch-node--engine .arch-node-label {
  background: var(--warm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.arch-node-name {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.05em;
  color: var(--white-80);
  display: block;
  line-height: 1.2;
}

.arch-node--engine .arch-node-name {
  font-size: 18px;
  background: linear-gradient(135deg, var(--warm-1), var(--cold-1));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.arch-node-items {
  margin-top: var(--sp-3);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.arch-node-items li {
  font-family: var(--font-body);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.4;
}

/* CSS connector with arrowhead */
.arch-connector {
  display: flex;
  align-items: center;
  width: 32px;
  flex-shrink: 0;
  position: relative;
}

.arch-connector-line {
  height: 1px;
  flex: 1;
}

.arch-connector--warm .arch-connector-line {
  background: linear-gradient(to right, rgba(255,107,43,0.3), rgba(255,107,43,0.7));
}

.arch-connector--cold .arch-connector-line {
  background: linear-gradient(to right, rgba(45,106,255,0.7), rgba(45,106,255,0.3));
}

/* Arrowhead via CSS border trick */
.arch-connector-arrow {
  width: 0;
  height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  flex-shrink: 0;
}

.arch-connector--warm .arch-connector-arrow {
  border-left: 6px solid rgba(255,107,43,0.7);
}

.arch-connector--cold .arch-connector-arrow {
  border-left: 6px solid rgba(45,106,255,0.7);
}


/* ── STEP 03 — ACTIVATION TIMELINE ──────────────────────── */

.activate-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

/* Warm gradient vertical connecting line */
.activate-line {
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--warm-1),
    rgba(255,107,43,0.08)
  );
  border-radius: 1px;
  pointer-events: none;
  z-index: 0;
}

.activate-item {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  position: relative;
  z-index: 1;
}

.activate-dot {
  width: 16px;
  height: 16px;
  min-width: 16px;
  border-radius: 50%;
  background: var(--warm-1);
  box-shadow: 0 0 10px rgba(255,107,43,0.5), 0 0 20px rgba(255,107,43,0.2);
  flex-shrink: 0;
}

.activate-time {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: #FF8C5A;
  min-width: 54px;
  flex-shrink: 0;
}

.activate-desc {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  color: var(--white-80);
}


/* ── STEP 04 — METRICS BAR CHART ─────────────────────────── */

.metrics-chart {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  margin-top: var(--sp-4);
}

.metric-row {
  display: grid;
  grid-template-columns: 130px 1fr 52px;
  align-items: center;
  gap: var(--sp-3);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.metric-bar-track {
  height: 8px;
  background: var(--surface-3);
  border-radius: var(--r-pill);
  overflow: hidden;
}

/* Fill is sized to target % by inline style --bar-w */
.metric-bar-fill {
  width: var(--bar-w, 100%);
  height: 100%;
  border-radius: inherit;
  background: var(--cold-gradient);
  transform-origin: left center;
  transform: scaleX(0); /* animated to 1 by GSAP */
}

/* Warm fill for standout metric */
.metric-bar-fill--warm {
  background: var(--warm-gradient);
}

.metric-value {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.04em;
  color: var(--cold-1);
  text-align: right;
  line-height: 1;
}

.metric-value--warm {
  color: var(--warm-1);
}


/* ── 30-DAY TIMELINE ─────────────────────────────────────── */

.thirty-days {
  background: var(--surface);
  padding: var(--sp-9) 0;
  position: relative;
  overflow: hidden;
}

.thirty-days-header {
  text-align: center;
  margin-bottom: var(--sp-8);
}

.thirty-days-title {
  font-family: var(--font-display);
  font-size: clamp(44px, 5vw, 56px);
  letter-spacing: 0.02em;
  color: var(--white);
  margin-top: var(--sp-4);
  line-height: 0.95;
}

/* Outer wrapper establishes position context for the rail */
.timeline-track {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--sp-7);
}

/* Rail — absolute vertical line running track height */
.timeline-rail {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
  pointer-events: none;
  overflow: hidden;
}

/* GSAP animates scaleY 0 → 1 on this element */
.timeline-rail-line {
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, var(--warm-1), var(--cold-1));
  transform-origin: top center;
  transform: scaleY(0);
}

/* Stack of milestone rows */
.milestones {
  display: flex;
  flex-direction: column;
  gap: var(--sp-7);
}

/* Each milestone is a 3-col grid: card | dot | spacer (or reverse) */
.milestone {
  display: grid;
  grid-template-columns: 1fr 48px 1fr;
  align-items: center;
  gap: var(--sp-5);
}

/* Left card — card in col 1, dot in col 2, spacer in col 3 */
.milestone--left .milestone-spacer { order: 3; }
.milestone--left .milestone-dot-col { order: 2; }
.milestone--left .milestone-card   { order: 1; }

/* Right card — spacer in col 1, dot in col 2, card in col 3 */
.milestone--right .milestone-spacer { order: 1; }
.milestone--right .milestone-dot-col { order: 2; }
.milestone--right .milestone-card   { order: 3; }

.milestone-spacer {
  /* Intentionally empty — creates opposing white space */
}

.milestone-dot-col {
  display: flex;
  align-items: center;
  justify-content: center;
}

.milestone-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
}

/* Outer glow ring */
.milestone-dot::before {
  content: '';
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  opacity: 0.25;
}

.milestone-dot--warm {
  background: var(--warm-1);
  box-shadow: 0 0 12px rgba(255,107,43,0.6), 0 0 28px rgba(255,107,43,0.2);
}

.milestone-dot--warm::before {
  background: var(--warm-1);
}

.milestone-dot--cold {
  background: var(--cold-1);
  box-shadow: 0 0 12px rgba(45,106,255,0.6), 0 0 28px rgba(45,106,255,0.2);
}

.milestone-dot--cold::before {
  background: var(--cold-1);
}

/* Milestone card */
.milestone-card {
  padding: var(--sp-5);
}

.milestone-day {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  display: block;
  margin-bottom: var(--sp-2);
}

.milestone-day--warm { color: #FF8C5A; }
.milestone-day--cold { color: #6B9FFF; }

.milestone-title {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: var(--sp-2);
}

.milestone-desc {
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.65;
  color: var(--white-40);
  max-width: none;
}


/* ── HIW BOTTOM CTA ──────────────────────────────────────── */

.hiw-cta {
  position: relative;
  padding: var(--sp-9) 0;
  background: var(--surface);
  overflow: hidden;
  text-align: center;
}

/* Warm atmosphere blob — centered top */
.hiw-cta-blob {
  position: absolute;
  width: 600px;
  height: 450px;
  top: -25%;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 60% 40% 70% 30% / 50% 60% 40% 70%;
  background: radial-gradient(
    ellipse,
    rgba(255,107,43,0.11) 0%,
    rgba(232,48,42,0.05) 50%,
    transparent 75%
  );
  filter: blur(80px);
  pointer-events: none;
  z-index: 1;
}

.hiw-cta-inner {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--sp-7);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hiw-cta-title {
  font-family: var(--font-display);
  font-size: clamp(44px, 6vw, 64px);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin: var(--sp-4) 0 var(--sp-5);
}

.hiw-cta-line-1 {
  display: block;
  color: var(--white);
}

.hiw-cta-line-2 {
  display: block;
  background: var(--warm-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 40px rgba(255,107,43,0.35));
}

.hiw-cta-body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--white-40);
  margin-bottom: var(--sp-6);
  max-width: 480px;
}

.hiw-cta-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  justify-content: center;
}


/* ── RESPONSIVE ──────────────────────────────────────────── */

@media (max-width: 1024px) {
  .step-grid,
  .step-grid--reversed {
    grid-template-columns: 1fr;
    gap: var(--sp-7);
  }

  .step-grid--reversed .step-content,
  .step-grid--reversed .step-card {
    order: 0;
  }

  /* Step card renders after copy on mobile */
  .step-content { order: 1; }
  .step-card    { order: 2; }

  .step-watermark {
    font-size: clamp(100px, 22vw, 140px);
  }

  /* Architecture diagram stacks on mobile */
  .arch-diagram {
    flex-direction: column;
    gap: var(--sp-2);
  }

  .arch-connector {
    width: auto;
    height: 28px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .arch-connector-line {
    width: 1px;
    height: 100%;
    background: var(--border) !important;
  }

  .arch-connector-arrow {
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 6px solid rgba(255,255,255,0.15);
    border-bottom: none;
  }
}

@media (max-width: 768px) {
  .metric-row {
    grid-template-columns: 1fr 36px;
    grid-template-rows: auto auto;
    gap: var(--sp-2);
  }

  .metric-label {
    grid-column: 1;
    grid-row: 1;
  }

  .metric-value {
    grid-column: 2;
    grid-row: 1;
    text-align: right;
  }

  .metric-bar-track {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  /* Timeline collapses to single column */
  .milestone {
    grid-template-columns: 24px 1fr;
    grid-template-rows: auto;
    gap: var(--sp-3);
  }

  .milestone--left .milestone-dot-col,
  .milestone--right .milestone-dot-col {
    order: 1;
    grid-column: 1;
  }

  .milestone--left .milestone-card,
  .milestone--right .milestone-card {
    order: 2;
    grid-column: 2;
  }

  .milestone--left .milestone-spacer,
  .milestone--right .milestone-spacer {
    display: none;
  }

  .timeline-rail {
    left: 11px;
    transform: none;
  }
}

@media (max-width: 480px) {
  .hiw-cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .hiw-cta-actions .btn {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hiw-hero-blob {
    animation: none;
  }

  .timeline-rail-line {
    transform: scaleY(1) !important;
  }

  .metric-bar-fill {
    transform: scaleX(1) !important;
  }
}