/* ═══════════════════════════════════════════════════════════════════
   technology-applications.css
   Technology · Applications · Case Studies — Combined Page
   Matches existing brand: White #FFFFFF / Gray #F5F5F7 / Black #1D1D1F / Accent #FF6A00
   ═══════════════════════════════════════════════════════════════════ */

/* ─── CSS Variables ─────────────────────────────────────────────── */
:root {
  --c-white:      #FFFFFF;
  --c-gray:       #F5F5F7;
  --c-gray-mid:   #E8E8ED;
  --c-gray-dark:  #86868B;
  --c-black:      #1D1D1F;
  --c-accent:     #FF6A00;
  --c-accent-dim: rgba(255, 106, 0, 0.12);
  --c-dark:       #111113;
  --c-dark-mid:   #1A1A1E;

  --font-head:    'SF Pro Display', -apple-system, 'Helvetica Neue', sans-serif;
  --font-body:    'SF Pro Text',    -apple-system, 'Helvetica Neue', sans-serif;
  --font-mono:    'SF Mono', ui-monospace, 'Courier New', monospace;

  --radius:       12px;
  --radius-lg:    20px;
  --radius-xl:    28px;

  --shadow-sm:    0 2px 12px rgba(0,0,0,.06);
  --shadow-md:    0 8px 32px rgba(0,0,0,.1);
  --shadow-lg:    0 20px 60px rgba(0,0,0,.14);

  --transition:   0.3s cubic-bezier(.25,.46,.45,.94);
  --transition-slow: 0.6s cubic-bezier(.25,.46,.45,.94);
}

/* ─── Reset & Base ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  color: var(--c-black);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}

/* ─── Shared Utilities ──────────────────────────────────────────── */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 16px;
}
.section-tag::before {
  content: '';
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-accent);
  flex-shrink: 0;
}
.section-tag--light { color: rgba(255,106,0,.9); }
.section-tag--light::before { background: rgba(255,106,0,.9); }

.section-title {
  font-family: var(--font-head);
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--c-black);
  margin-bottom: 20px;
}
.section-title--light { color: var(--c-white); }

.section-intro {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.7;
  color: var(--c-gray-dark);
  max-width: 600px;
  margin-bottom: 0;
}
.section-intro--light { color: rgba(255,255,255,.7); }

/* ─── Buttons ───────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--c-accent);
  color: var(--c-white);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 100px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn-primary:hover {
  background: #e65e00;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,106,0,.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 14px 28px;
  background: transparent;
  color: var(--c-black);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1.5px solid var(--c-gray-mid);
  border-radius: 100px;
  transition: all var(--transition);
}
.btn-secondary:hover {
  border-color: var(--c-black);
  background: var(--c-black);
  color: var(--c-white);
}

/* ─── Reveal animation ──────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ═══════════════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════════════ */
.tap-hero {
  position: relative;
  min-height: 100vh;
  background: var(--c-dark);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 140px 5vw 120px;
}

/* Subtle grid background */
.tap-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,106,0,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,106,0,.06) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Orange glow */
.tap-hero::after {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 800px;
  max-height: 800px;
  background: radial-gradient(ellipse, rgba(255,106,0,.18) 0%, transparent 70%);
  pointer-events: none;
}

.tap-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.tap-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,.4);
  margin-bottom: 32px;
  list-style: none;
}
.tap-breadcrumb a {
  color: rgba(255,255,255,.5);
  text-decoration: none;
  transition: color var(--transition);
}
.tap-breadcrumb a:hover { color: var(--c-accent); }

.tap-hero-pills {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 28px;
}
.tap-pill-link {
  color: var(--c-accent);
  text-decoration: none;
  transition: opacity var(--transition);
}
.tap-pill-link:hover { opacity: .7; }

.tap-hero-title {
  font-family: var(--font-head);
  font-size: clamp(44px, 6vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.03em;
  color: var(--c-white);
  margin-bottom: 28px;
}
.tap-hero-title em {
  font-style: normal;
  color: var(--c-accent);
}

.tap-hero-sub {
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.7;
  color: rgba(255,255,255,.6);
  max-width: 520px;
}

.tap-hero-scroll {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 56px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,.3);
}
.tap-scroll-line {
  width: 60px;
  height: 1px;
  background: rgba(255,255,255,.2);
  position: relative;
  overflow: hidden;
}
.tap-scroll-line::after {
  content: '';
  position: absolute;
  left: -100%;
  top: 0;
  width: 100%;
  height: 100%;
  background: var(--c-accent);
  animation: scrollLine 2s ease infinite;
}
@keyframes scrollLine {
  0%   { left: -100%; }
  50%  { left: 0; }
  100% { left: 100%; }
}

/* Floating stats */
.tap-hero-stats {
  position: absolute;
  bottom: 80px;
  right: 5vw;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 2;
}
.tap-stat-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 16px 24px;
  min-width: 180px;
  backdrop-filter: blur(10px);
}
.tap-stat-card--accent {
  background: rgba(255,106,0,.15);
  border-color: rgba(255,106,0,.3);
}
.tap-stat-val {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 700;
  color: var(--c-white);
  line-height: 1;
  margin-bottom: 4px;
}
.tap-stat-val small {
  font-size: 14px;
  font-weight: 500;
  opacity: .7;
}
.tap-stat-lbl {
  font-size: 11px;
  color: rgba(255,255,255,.5);
  letter-spacing: .5px;
}

/* ═══════════════════════════════════════════════════════════════════
   SECTION NAV (sticky)
   ═══════════════════════════════════════════════════════════════════ */
.tap-section-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-gray-mid);
  transform: translateY(-100%);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.tap-section-nav.is-visible {
  transform: translateY(0);
  box-shadow: 0 4px 24px rgba(0,0,0,.06);
}
.tap-section-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5vw;
  display: flex;
  gap: 0;
}
.tap-snav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 18px 24px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .5px;
  color: var(--c-gray-dark);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.tap-snav-link svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
}
.tap-snav-link:hover,
.tap-snav-link.active {
  color: var(--c-black);
  border-bottom-color: var(--c-accent);
}

/* ═══════════════════════════════════════════════════════════════════
   SHARED SECTION STYLES
   ═══════════════════════════════════════════════════════════════════ */
.tap-section {
  padding: 100px 5vw;
}

.tap-section-header {
  max-width: 1200px;
  margin: 0 auto 64px;
}
.tap-section-header--dark .section-title { color: var(--c-white); }

/* ═══════════════════════════════════════════════════════════════════
   ①  TECHNOLOGY
   ═══════════════════════════════════════════════════════════════════ */
.tap-tech {
  background: var(--c-white);
}

/* Tech pillars grid */
.tap-tech-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px;
}

/* Cards — flip on hover */
.tap-tech-card {
  perspective: 1000px;
  height: 340px;
  cursor: default;
}
.tap-tech-card:nth-child(n+4) {
  /* Row 2: 2 cards, center them */
  /* handled via JS for 2-card partial row */
}
.tap-tech-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.7s cubic-bezier(.25,.46,.45,.94);
}
.tap-tech-card:hover .tap-tech-card-inner,
.tap-tech-card:focus-within .tap-tech-card-inner {
  transform: rotateY(180deg);
}
.tap-tech-card-front,
.tap-tech-card-back {
  position: absolute;
  inset: 1;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}
.tap-tech-card-front {
  background: var(--c-gray);
  border: 1px solid var(--c-gray-mid);
  display: flex;
  flex-direction: column;
}
.tap-tech-card-back {
  background: var(--c-dark);
  border: 1px solid rgba(255,106,0,.2);
  transform: rotateY(180deg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.tap-tc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--c-accent);
  margin-bottom: auto;
}
.tap-tc-icon {
  margin: 12px 0 16px;
}
.tap-tc-icon svg {
  width: 48px;
  height: 48px;
}
.tap-tc-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--c-gray-dark);
  margin-bottom: 10px;
}
.tap-tc-title {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-black);
  letter-spacing: -.01em;
}

/* Back face */
.tap-tc-body {
  font-size: 13px;
  line-height: 1.65;
  color: rgba(255,255,255,.65);
}
.tap-tc-specs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}
.tap-tc-specs li {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .5px;
  color: var(--c-accent);
  background: rgba(255,106,0,.1);
  border: 1px solid rgba(255,106,0,.2);
  border-radius: 100px;
  padding: 4px 10px;
}

/* Hover hint on front */
.tap-tech-card-front::after {
  content: 'Hover to explore';
  position: absolute;
  bottom: 20px;
  right: 24px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(0,0,0,.2);
}

/* Last row: 2 cards → center */
.tap-tech-grid .tap-tech-card:nth-child(4),
.tap-tech-grid .tap-tech-card:nth-child(5) {
  /* If only 5 cards, last row has 2: handled with grid-column-start */
}
.tap-tech-grid .tap-tech-card:nth-child(4) { grid-column-start: 1; }

/* Engineering diagram */
.tap-diagram-block {
  max-width: 1200px;
  margin: 60px auto 0;
  border: 1px solid var(--c-gray-mid);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--c-dark);
}
.tap-diagram-label {
  padding: 16px 28px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,106,0,.6);
  border-bottom: 1px solid rgba(255,106,0,.1);
}
.tap-diagram {
  padding: 32px 28px;
  overflow-x: auto;
}
.tap-diagram-svg {
  width: 100%;
  height: auto;
  min-width: 600px;
}

.tap-tc-image{
    width:100%;
    height:180px;
    object-fit:cover;
    border-radius:8px;
    
}

/* ═══════════════════════════════════════════════════════════════════
   ②  APPLICATIONS
   ═══════════════════════════════════════════════════════════════════ */
.tap-apps {
  background: var(--c-dark);
}
.tap-apps .tap-section-header { margin-bottom: 56px; }

.tap-apps-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.tap-app-card {
  background: var(--c-dark-mid);
  border: 1px solid rgba(255,255,255,.06);
  display: grid;
  grid-template-columns: 1fr;
  overflow: hidden;
  transition: border-color var(--transition);
}
.tap-app-card:first-child  { border-radius: var(--radius-xl) 0 0 0; }
.tap-app-card:nth-child(2) { border-radius: 0 var(--radius-xl) 0 0; }
.tap-app-card:nth-child(3) { border-radius: 0 0 0 var(--radius-xl); }
.tap-app-card:last-child   { border-radius: 0 0 var(--radius-xl) 0; }
.tap-app-card:hover { border-color: rgba(255,106,0,.25); }

/* Photo placeholder */
.tap-app-photo {
  position: relative;
  height: 220px;
  background: linear-gradient(135deg, var(--app-color, #FF6A00) 0%, rgba(0,0,0,.6) 100%);
  overflow: hidden;
}
.tap-app-photo img {
  width: 100%;
  object-fit: cover;
  display: block;
}
.tap-app-photo-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.tap-app-photo-icon {
  font-size: 40px;
  line-height: 1;
}
.tap-app-photo-hint {
  font-size: 11px;
  letter-spacing: 1px;
  color: rgba(255,255,255,.4);
  text-transform: uppercase;
}
.tap-app-num {
  position: absolute;
  top: 20px;
  left: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: rgba(255,255,255,.5);
  background: rgba(0,0,0,.4);
  padding: 4px 10px;
  border-radius: 100px;
  backdrop-filter: blur(8px);
}

.tap-app-body {
  padding: 32px 36px 40px;
}
.tap-app-sector {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 10px;
}
.tap-app-tagline {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.25;
  letter-spacing: -.01em;
  margin-bottom: 14px;
}
.tap-app-desc {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(255,255,255,.55);
  margin-bottom: 24px;
}
.tap-app-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.tap-app-col-head {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,.3);
  margin-bottom: 10px;
}
.tap-app-uses,
.tap-app-kpi {
  list-style: none;
}
.tap-app-uses li {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
  line-height: 1.4;
}
.tap-app-uses li:last-child { border-bottom: none; }
.tap-app-kpi li {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-accent);
  padding: 5px 0;
  border-bottom: 1px solid rgba(255,106,0,.08);
  display: flex;
  align-items: center;
  gap: 6px;
}
.tap-app-kpi li::before {
  content: '↑';
  font-size: 10px;
  opacity: .7;
}
.tap-app-kpi li:last-child { border-bottom: none; }

/* Industries CTA */
.tap-apps-cta {
  max-width: 1200px;
  margin: 48px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 40px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-xl);
}
.tap-apps-cta p {
  font-size: 16px;
  color: rgba(255,255,255,.6);
}
.tap-apps-cta .btn-primary { white-space: nowrap; }

/* ═══════════════════════════════════════════════════════════════════
   ③  CASE STUDIES
   ═══════════════════════════════════════════════════════════════════ */
.tap-cases {
  background: var(--c-white);
}

.tap-cases-list {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.tap-case {
  padding: 60px 0;
}

.tap-case-divider {
  border: none;
  border-top: 1px solid var(--c-gray-mid);
  margin: 0;
}

.tap-case-header {
  margin-bottom: 40px;
}
.tap-case-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}
.tap-case-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--c-accent);
  background: var(--c-accent-dim);
  padding: 5px 12px;
  border-radius: 100px;
}
.tap-case-sector {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--c-gray-dark);
  text-transform: uppercase;
}
.tap-case-title {
  font-family: var(--font-head);
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--c-black);
  max-width: 700px;
}

/* Story: Problem → Solution → Result */
.tap-case-story {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 0;
  margin-bottom: 40px;
  align-items: start;
}
.tap-story-arrow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 28px 12px 0;
  font-size: 20px;
  color: var(--c-gray-mid);
  font-weight: 300;
}
.tap-story-step {
  background: var(--c-gray);
  border-radius: var(--radius-lg);
  padding: 28px 28px 32px;
  border: 1px solid var(--c-gray-mid);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.tap-story-step:hover {
  border-color: rgba(255,106,0,.25);
  box-shadow: var(--shadow-sm);
}
.tap-story-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}
.tap-story-icon svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
  fill: none;
  stroke: currentColor;
}
.tap-story-icon--problem  { background: rgba(239,68,68,.1);  color: #EF4444; }
.tap-story-icon--solution { background: rgba(255,106,0,.12); color: var(--c-accent); }
.tap-story-icon--result   { background: rgba(34,197,94,.1);  color: #22C55E; }

.tap-story-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-gray-dark);
  margin-bottom: 10px;
}
.tap-story-text {
  font-size: 14px;
  line-height: 1.65;
  color: #3A3A3C;
}

/* Metrics panel */
.tap-case-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--c-gray-mid);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tap-metric {
  background: var(--c-white);
  padding: 28px 24px;
  border-radius: 0;
  transition: background var(--transition);
}
.tap-metric:hover { background: var(--c-gray); }
.tap-metric:first-child { border-radius: var(--radius-lg) 0 0 var(--radius-lg); }
.tap-metric:last-child  { border-radius: 0 var(--radius-lg) var(--radius-lg) 0; }
.tap-metric-val {
  font-family: var(--font-head);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: -.02em;
  margin-bottom: 6px;
  line-height: 1;
}
.tap-metric-lbl {
  font-size: 12px;
  line-height: 1.4;
  color: var(--c-gray-dark);
}

/* CTA block */
.tap-cases-cta {
  max-width: 1100px;
  margin: 60px auto 0;
}
.tap-cases-cta-inner {
  background: var(--c-dark);
  border-radius: var(--radius-xl);
  padding: 72px 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.tap-cases-cta-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,106,0,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,106,0,.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
.tap-cases-cta-inner .section-tag,
.tap-cases-cta-inner .section-title,
.tap-cases-cta-inner .section-intro {
  position: relative;
  z-index: 1;
}
.tap-cases-cta-inner .section-title { color: var(--c-white); max-width: 500px; margin: 0 auto 16px; }
.tap-cases-cta-inner .section-intro { color: rgba(255,255,255,.55); margin: 0 auto 32px; }
.tap-cases-cta-inner .section-tag { justify-content: center; }

.tap-cta-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  position: relative;
  z-index: 1;
}
.tap-cases-cta-inner .btn-secondary {
  color: rgba(255,255,255,.7);
  border-color: rgba(255,255,255,.2);
}
.tap-cases-cta-inner .btn-secondary:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.4);
  color: var(--c-white);
}

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .tap-tech-grid { grid-template-columns: repeat(2, 1fr); }
  .tap-tech-grid .tap-tech-card:nth-child(4) { grid-column-start: auto; }
  .tap-tech-grid .tap-tech-card:nth-child(5) { grid-column: 1 / -1; max-width: 480px; margin: 0 auto; width: 100%; }

  .tap-case-story { grid-template-columns: 1fr; gap: 16px; }
  .tap-story-arrow { display: none; }

  .tap-case-metrics { grid-template-columns: repeat(2, 1fr); }
  .tap-metric:nth-child(1) { border-radius: var(--radius-lg) 0 0 0; }
  .tap-metric:nth-child(2) { border-radius: 0 var(--radius-lg) 0 0; }
  .tap-metric:nth-child(3) { border-radius: 0 0 0 var(--radius-lg); }
  .tap-metric:nth-child(4) { border-radius: 0 0 var(--radius-lg) 0; }
}

@media (max-width: 900px) {
  .tap-apps-grid { grid-template-columns: 1fr; }
  .tap-app-card:first-child,
  .tap-app-card:nth-child(2),
  .tap-app-card:nth-child(3),
  .tap-app-card:last-child {
    border-radius: var(--radius-xl);
  }

  .tap-hero-stats {
    position: relative;
    bottom: auto;
    right: auto;
    flex-direction: row;
    flex-wrap: wrap;
    margin-top: 48px;
  }
  .tap-stat-card { min-width: 140px; }
}

@media (max-width: 768px) {
  .tap-section { padding: 72px 24px; }

  .tap-tech-grid { grid-template-columns: 1fr; }
  .tap-tech-grid .tap-tech-card:nth-child(5) { max-width: 100%; }
  .tap-tech-card { height: 300px; }

  .tap-app-two-col { grid-template-columns: 1fr; }
  .tap-app-body { padding: 24px 24px 32px; }

  .tap-apps-cta {
    flex-direction: column;
    text-align: center;
  }

  .tap-section-nav-inner { overflow-x: auto; gap: 0; }
  .tap-snav-link { padding: 16px 16px; font-size: 12px; white-space: nowrap; }
  .tap-snav-link svg { display: none; }

  .tap-cases-cta-inner { padding: 48px 32px; }
  .tap-cta-row { flex-direction: column; }

  .tap-case-metrics { grid-template-columns: 1fr 1fr; }

  .tap-hero-title { font-size: 40px; }
}

@media (max-width: 480px) {
  .tap-hero { padding: 120px 24px 100px; }
  .tap-tech-card { height: auto; perspective: none; }
  .tap-tech-card-inner { transform-style: flat; }
  .tap-tech-card-back { position: relative; transform: none; border-radius: var(--radius-lg); margin-top: 4px; }
  .tap-tech-card-front::after { display: none; }
  .tap-tech-card:hover .tap-tech-card-inner { transform: none; }

  .tap-case-metrics { grid-template-columns: 1fr; }
  .tap-metric:first-child { border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
  .tap-metric:last-child  { border-radius: 0 0 var(--radius-lg) var(--radius-lg); }
  .tap-metric:nth-child(2) { border-radius: 0; }
  .tap-metric:nth-child(3) { border-radius: 0; }
}

/* ─── Print ─────────────────────────────────────────────────────── */
@media print {
  .tap-section-nav,
  .tap-hero-scroll,
  .tap-hero-stats { display: none; }
  .reveal { opacity: 1; transform: none; }
  .tap-tech-card { height: auto; perspective: none; }
  .tap-tech-card-back { position: relative; transform: none; margin-top: 8px; }
}