/* ============================================================
   KKRF TECH — How We Work  (Revamped UI)
   ============================================================ */

/* ── HERO ──────────────────────────────────────────────────── */
.pg-hero {
  background: #020c1b;
  padding: 168px 0 120px;
  position: relative;
  overflow: hidden;
}

/* Radial glow behind hero text */
.pg-hero::before {
  content: "";
  position: absolute;
  top: -160px; left: -180px;
  width: 780px; height: 780px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(21,116,255,.22) 0%, transparent 68%);
  pointer-events: none;
}

/* Subtle grid texture */
.pg-hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 50%, black 30%, transparent 100%);
}

/* Right-side accent blob */
.pg-hero__inner::after {
  content: "";
  position: absolute;
  top: -60px; right: -300px;
  width: 560px; height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(21,116,255,.12), transparent 65%);
  pointer-events: none;
}

.pg-hero__inner { position: relative; z-index: 1; max-width: 860px; }

.pg-hero__eye {
  font-family: 'Inter', sans-serif;
  font-size: 11px; font-weight: 600; letter-spacing: .2em;
  text-transform: uppercase; color: var(--blue);
  display: inline-flex; align-items: center; gap: 12px;
  margin-bottom: 32px;
  background: rgba(21,116,255,.1);
  border: 1px solid rgba(21,116,255,.28);
  padding: 6px 16px 6px 10px;
  border-radius: 999px;
}
.pg-hero__eye::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 8px var(--blue);
  flex-shrink: 0;
}

.pg-hero__title {
  font-family: var(--font-display);
  font-size: clamp(42px, 5.8vw, 76px);
  font-weight: 800; line-height: .98; letter-spacing: -.045em;
  color: var(--white); margin-bottom: 28px;
}
.pg-hero__title span {
  background: linear-gradient(135deg, #4da1ff 0%, #1574FF 60%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pg-hero__sub {
  font-size: clamp(16px, 1.5vw, 19px); line-height: 1.68;
  color: rgba(255,255,255,.55); max-width: 600px; margin-bottom: 52px;
}

.pg-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; }
.pg-hero .btn { border-radius: 10px; }
.pg-hero .btn--solid {
  background: var(--blue);
  box-shadow: 0 4px 24px rgba(21,116,255,.45);
}
.pg-hero .btn--solid:hover {
  background: #0f5ce0;
  box-shadow: 0 8px 32px rgba(21,116,255,.55);
  transform: translateY(-1px);
}
.pg-hero .btn--ghost {
  border-color: rgba(255,255,255,.2);
  color: rgba(255,255,255,.72);
}
.pg-hero .btn--ghost:hover {
  border-color: rgba(255,255,255,.6);
  color: var(--white);
  background: rgba(255,255,255,.06);
}

/* Scroll indicator */
.pg-hero__scroll {
  position: absolute; bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: rgba(255,255,255,.3);
  animation: heroScrollBounce 2s ease-in-out infinite;
}
.pg-hero__scroll svg { opacity: .4; }
@keyframes heroScrollBounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ── PRINCIPLES ─────────────────────────────────────────────── */
.hww-principles {
  padding: clamp(96px, 11vw, 140px) 0;
  background: #fff;
  position: relative;
}
.hww-principles::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent 0%, var(--blue) 40%, rgba(21,116,255,.3) 100%);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 68px;
}

.prin-card {
  background: #fafbfd;
  border: 1px solid #e8ecf3;
  border-radius: 18px;
  padding: 28px 22px 24px;
  display: flex; flex-direction: column; gap: 14px;
  position: relative;
  transition: border-color .3s, transform .35s cubic-bezier(.22,.68,0,1.2), box-shadow .35s;
  overflow: hidden;
}
.prin-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), #6ea7ff);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .35s ease;
  border-radius: 18px 18px 0 0;
}
.prin-card:hover {
  border-color: rgba(21,116,255,.22);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(21,116,255,.1);
}
.prin-card:hover::before { transform: scaleX(1); }

.prin-icon {
  width: 46px; height: 46px;
  background: linear-gradient(135deg, rgba(21,116,255,.12) 0%, rgba(21,116,255,.06) 100%);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
  flex-shrink: 0;
}
.prin-icon svg { width: 22px; height: 22px; }

.prin-card h4 {
  font-family: var(--font-display);
  font-size: 14.5px; font-weight: 700; letter-spacing: -.015em;
  color: var(--ink);
}
.prin-card p { font-size: 13.5px; line-height: 1.62; color: var(--g-600); }

/* ── PROCESS ─────────────────────────────────────────────────── */
.hww-process {
  padding: clamp(96px, 11vw, 140px) 0;
  background: #020c1b;
  position: relative;
  overflow: hidden;
}
.hww-process::before {
  content: "";
  position: absolute;
  bottom: -300px; right: -200px;
  width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(21,116,255,.14), transparent 65%);
  pointer-events: none;
}

/* Force section-head text to white on dark bg */
.hww-process .eyebrow { color: #5ba3ff; }
.hww-process .section-title { color: #fff; }
.hww-process .section-lead { color: rgba(255,255,255,.5); }

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  margin-top: 72px;
  position: relative;
}

/* connector line injected by JS becomes more visible */
.hww-proc-line {
  position: absolute;
  top: 35px; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, rgba(21,116,255,.6), rgba(21,116,255,.15));
  z-index: 1;
  border-radius: 2px;
}

.proc-step {
  text-align: center;
  padding: 0 14px;
  position: relative; z-index: 2;
}

.proc-num {
  width: 70px; height: 70px;
  background: #0d1f38;
  border: 1.5px solid rgba(21,116,255,.4);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  font-family: var(--font-display);
  font-size: 12px; font-weight: 700; letter-spacing: .1em;
  color: var(--blue);
  transition: background .3s, border-color .3s, box-shadow .3s;
  position: relative;
}
.proc-num::after {
  content: "";
  position: absolute; inset: -5px;
  border-radius: 50%;
  border: 1px solid rgba(21,116,255,.15);
}
.proc-step:hover .proc-num {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
  box-shadow: 0 0 24px rgba(21,116,255,.55);
}

.proc-icon {
  width: 40px; height: 40px;
  margin: 0 auto 14px;
  color: rgba(255,255,255,.28);
}
.proc-icon svg { width: 40px; height: 40px; }
.proc-step:hover .proc-icon { color: var(--blue); }

.proc-step h4 {
  font-family: var(--font-display);
  font-size: 14px; font-weight: 700; letter-spacing: -.01em;
  color: rgba(255,255,255,.85); margin-bottom: 10px;
  transition: color .3s;
}
.proc-step:hover h4 { color: #fff; }

.proc-step p { font-size: 13px; line-height: 1.62; color: rgba(255,255,255,.4); }

/* ── ENGAGEMENT MODELS ──────────────────────────────────────── */
.hww-engage {
  padding: clamp(96px, 11vw, 140px) 0;
  background: #fff;
}

.engage-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 68px;
  align-items: start;
}

.engage-card {
  background: #fafbfd;
  border: 1px solid #e8ecf3;
  border-radius: 22px;
  padding: 40px 32px;
  position: relative;
  transition: border-color .3s, transform .4s cubic-bezier(.22,.68,0,1.2), box-shadow .4s;
  overflow: hidden;
}
.engage-card::after {
  content: "";
  position: absolute;
  bottom: -60px; right: -60px;
  width: 160px; height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(21,116,255,.06), transparent 65%);
  pointer-events: none;
}
.engage-card:hover {
  border-color: rgba(21,116,255,.3);
  transform: translateY(-8px);
  box-shadow: 0 24px 64px rgba(21,116,255,.1);
}

/* Featured center card — dark & dramatic */
.engage-card--featured {
  background: #020c1b;
  border: 1px solid rgba(21,116,255,.35);
  box-shadow: 0 8px 48px rgba(21,116,255,.18);
  transform: scale(1.03);
}
.engage-card--featured::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(21,116,255,.2), transparent 65%);
  pointer-events: none; border-radius: inherit;
}
.engage-card--featured::after {
  background: radial-gradient(circle, rgba(21,116,255,.12), transparent 65%);
}
.engage-card--featured:hover {
  border-color: var(--blue);
  transform: scale(1.03) translateY(-8px);
  box-shadow: 0 32px 80px rgba(21,116,255,.28);
}

.engage-card--featured .engage-tag {
  background: rgba(21,116,255,.2);
  color: #5ba3ff;
  border: 1px solid rgba(21,116,255,.3);
}
.engage-card--featured h3 { color: #fff !important; }
.engage-card--featured > p { color: rgba(255,255,255,.5) !important; }
.engage-card--featured li { color: rgba(255,255,255,.7) !important; }
.engage-card--featured .engage-list li::before { color: #5ba3ff; }

.engage-tag {
  display: inline-block;
  font-size: 10.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  background: rgba(21,116,255,.09); color: var(--blue);
  padding: 5px 14px; border-radius: 999px;
  margin-bottom: 22px;
}

.engage-card h3 {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 24px); font-weight: 800; letter-spacing: -.025em;
  color: var(--ink); margin-bottom: 14px; line-height: 1.15;
}
.engage-card > p {
  font-size: 14.5px; line-height: 1.68; color: var(--g-600); margin-bottom: 28px;
}

.engage-list { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.engage-list li {
  font-size: 14px; color: var(--g-700);
  display: flex; align-items: flex-start; gap: 10px;
  line-height: 1.45;
}
.engage-list li::before {
  content: "";
  width: 16px; height: 16px; flex-shrink: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='7.5' fill='none' stroke='%231574FF' stroke-opacity='.3'/%3E%3Cpath d='M5 8l2 2 4-4' stroke='%231574FF' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center / contain;
  margin-top: 1px;
}

/* ── TECH STACK ──────────────────────────────────────────────── */
.hww-stack {
  padding: clamp(96px, 11vw, 140px) 0;
  background: #f4f7fc;
  position: relative;
}
.hww-stack::before {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(21,116,255,.055) 1px, transparent 0);
  background-size: 28px 28px;
  pointer-events: none;
}

.stack-tabs {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 52px 0 40px;
}
.stack-tab {
  padding: 8px 20px;
  border: 1px solid #dce2ed;
  border-radius: 999px;
  font-size: 13px; font-weight: 600; font-family: var(--font-display);
  color: var(--g-500);
  background: #fff;
  cursor: pointer;
  transition: all .22s ease;
}
.stack-tab:hover { border-color: var(--blue); color: var(--blue); background: rgba(21,116,255,.04); }
.stack-tab.active {
  background: var(--blue);
  color: #fff; border-color: var(--blue);
  box-shadow: 0 4px 16px rgba(21,116,255,.35);
}

.stack-panel { display: none; }
.stack-panel.active {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 12px;
}

.stack-item {
  background: #fff;
  border: 1px solid #e2e8f3;
  border-radius: 14px;
  padding: 20px 12px 16px;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 600; color: var(--g-500); text-align: center;
  transition: border-color .25s, color .25s, transform .3s cubic-bezier(.22,.68,0,1.2), box-shadow .3s;
  cursor: default;
}
.stack-item:hover {
  border-color: rgba(21,116,255,.4);
  color: var(--ink);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(21,116,255,.1);
}
.stack-item svg { width: 30px; height: 30px; color: var(--blue); }

/* ── CASE STUDIES ────────────────────────────────────────────── */
.hww-cases {
  padding: clamp(96px, 11vw, 140px) 0;
  background: #020c1b;
  position: relative;
  overflow: hidden;
}
.hww-cases::before {
  content: "";
  position: absolute;
  top: -250px; left: 50%; transform: translateX(-50%);
  width: 800px; height: 800px; border-radius: 50%;
  background: radial-gradient(circle, rgba(21,116,255,.11), transparent 65%);
  pointer-events: none;
}

.hww-cases .eyebrow { color: #5ba3ff; }
.hww-cases .section-title { color: #fff; }
.hww-cases .section-lead { color: rgba(255,255,255,.5); }

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 68px;
}

.case-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 20px;
  padding: 36px 30px 32px;
  position: relative;
  overflow: hidden;
  transition: border-color .3s, transform .35s cubic-bezier(.22,.68,0,1.2), background .3s;
  backdrop-filter: blur(4px);
}
.case-card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(21,116,255,.7), transparent);
  opacity: 0; transition: opacity .3s;
}
.case-card:hover {
  border-color: rgba(21,116,255,.35);
  transform: translateY(-6px);
  background: rgba(255,255,255,.065);
}
.case-card:hover::before { opacity: 1; }

.case-client {
  font-family: var(--font-display);
  font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: #5ba3ff; margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.case-client::before {
  content: "";
  width: 18px; height: 1.5px;
  background: rgba(21,116,255,.55);
  flex-shrink: 0;
}

.case-card h3 {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 700; letter-spacing: -.02em; line-height: 1.3;
  color: rgba(255,255,255,.9); margin-bottom: 14px;
}
.case-card p {
  font-size: 14px; line-height: 1.68; color: rgba(255,255,255,.45); margin-bottom: 28px;
}

.case-metrics {
  display: flex; gap: 0;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.case-metric {
  text-align: center; flex: 1;
  padding: 0 8px;
  border-right: 1px solid rgba(255,255,255,.07);
}
.case-metric:last-child { border-right: none; }

.case-metric span {
  display: block;
  font-family: var(--font-display);
  font-size: 24px; font-weight: 800; letter-spacing: -.035em;
  color: var(--blue);
  line-height: 1;
  margin-bottom: 5px;
}
.case-metric small { font-size: 11px; color: rgba(255,255,255,.35); letter-spacing: .03em; }

/* ── FINAL CTA ───────────────────────────────────────────────── */
.hww-cta {
  padding: clamp(100px, 12vw, 160px) 0;
  background: linear-gradient(160deg, #020c1b 0%, #03163a 100%);
  text-align: center;
  position: relative; overflow: hidden;
}
.hww-cta::before {
  content: "";
  position: absolute; top: -150px; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 700px; border-radius: 50%;
  background: radial-gradient(circle, rgba(21,116,255,.22) 0%, transparent 60%);
  pointer-events: none;
}
/* Outer ring decoration */
.hww-cta::after {
  content: "";
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 900px; height: 900px; border-radius: 50%;
  border: 1px solid rgba(21,116,255,.08);
  pointer-events: none;
}

.hww-cta__inner { position: relative; z-index: 1; max-width: 680px; margin: 0 auto; }

.hww-cta__eye {
  font-family: 'Inter', sans-serif;
  font-size: 11px; font-weight: 600; letter-spacing: .2em;
  text-transform: uppercase; color: #5ba3ff;
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 32px;
  background: rgba(21,116,255,.12);
  border: 1px solid rgba(21,116,255,.3);
  padding: 6px 16px 6px 12px;
  border-radius: 999px;
}
.hww-cta__eye::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: #5ba3ff; box-shadow: 0 0 8px #5ba3ff;
}

.hww-cta h2 {
  font-family: var(--font-display);
  font-size: clamp(32px, 3.8vw, 56px);
  font-weight: 800; letter-spacing: -.045em; line-height: 1.04;
  color: #fff; margin-bottom: 20px;
}

.hww-cta p { font-size: 17px; line-height: 1.65; color: rgba(255,255,255,.48); margin-bottom: 44px; }

.hww-cta__actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px; }
.hww-cta .btn { border-radius: 10px; }
.hww-cta .btn--solid {
  background: var(--blue);
  box-shadow: 0 4px 28px rgba(21,116,255,.5);
}
.hww-cta .btn--solid:hover {
  background: #0f5ce0;
  box-shadow: 0 8px 36px rgba(21,116,255,.6);
  transform: translateY(-1px);
}
.hww-cta .btn--ghost {
  border-color: rgba(255,255,255,.2) !important;
  color: rgba(255,255,255,.65) !important;
}
.hww-cta .btn--ghost:hover {
  border-color: rgba(255,255,255,.55) !important;
  color: #fff !important;
  background: rgba(255,255,255,.06);
}

/* ── SECTION HEAD SHARED STYLES ─────────────────────────────── */
.hww-process .section-head,
.hww-cases .section-head {
  --eyebrow-color: #5ba3ff;
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .principles-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 40px 0; }
  .hww-proc-line { display: none; }
}

@media (max-width: 900px) {
  .engage-grid { grid-template-columns: 1fr; }
  .engage-card--featured { transform: scale(1); }
  .engage-card--featured:hover { transform: translateY(-8px); }
  .cases-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .principles-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 36px 0; }
  .cases-grid { grid-template-columns: 1fr; }
  .stack-panel.active { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); }
}

@media (max-width: 520px) {
  .principles-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .pg-hero { padding: 120px 0 80px; }
}