/* ================================================================
   UPSCALE EXACT REPLICA DESIGN SYSTEM — LUIDE DIGITAL
   ================================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@600;700;800&display=swap');

:root {
  --primary: #0066FF;
  --primary-hover: #0052CC;
  --primary-glow: rgba(0, 102, 255, 0.4);
  --cyan: #00D2FF;
  --navy-deep: #050C1F;
  --navy-dark: #0A1633;
  --navy-light: #14234C;
  --text-dark: #0B132A;
  --text-muted: #5E6D8A;
  --text-light: #94A3B8;
  --bg-page: #F8FAFC;
  --bg-card: #FFFFFF;
  --border-light: rgba(0, 102, 255, 0.08);
  --border-subtle: #E2E8F0;
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --radius-full: 9999px;
  --shadow-sm: 0 4px 12px rgba(0, 102, 255, 0.04);
  --shadow-md: 0 12px 32px rgba(0, 102, 255, 0.06);
  --shadow-lg: 0 20px 50px rgba(0, 102, 255, 0.10);
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-head: 'Poppins', 'Inter', sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ================= HEADER ================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0;
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-word {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 26px;
  letter-spacing: -0.03em;
  color: var(--text-dark);
}

.brand-word span {
  color: var(--primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.main-nav a:hover {
  color: var(--primary);
}

.btn-header {
  background: var(--primary);
  color: #fff !important;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px var(--primary-glow);
  transition: all 0.25s ease;
}

.btn-header:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  margin: 5px 0;
  transition: 0.3s;
}

/* ================= HERO (GLOWING CYBER BLUE) ================= */
.hero-upscale {
  position: relative;
  background: radial-gradient(circle at 50% 30%, #004ecc 0%, #061845 50%, #02081a 100%);
  color: #fff;
  text-align: center;
  padding: 100px 0 140px;
  overflow: hidden;
}

.hero-upscale::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 210, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 210, 255, 0.08) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: center bottom;
  mask-image: radial-gradient(ellipse at 50% 50%, rgba(0,0,0,1) 0%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, rgba(0,0,0,1) 0%, transparent 80%);
  pointer-events: none;
}

.hero-upscale::after {
  content: '';
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 350px;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.25) 0%, rgba(0, 102, 255, 0) 70%);
  filter: blur(60px);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  margin: 0 auto;
}

.hero-logo-badge {
  font-family: var(--font-head);
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: #fff;
}

.hero-logo-badge span {
  color: var(--cyan);
}

.meta-partner-badge-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  padding: 10px 32px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 0 3px rgba(255, 255, 255, 0.2);
  margin-bottom: 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.meta-partner-badge-card:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.meta-partner-badge-card img {
  height: 64px;
  width: auto;
  object-fit: contain;
  display: block;
}

.hero-title-upscale {
  font-family: var(--font-head);
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: #FFFFFF;
}

.hero-subtitle-upscale {
  font-size: clamp(16px, 2.2vw, 19px);
  color: #CBD5E1;
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.btn-hero-glow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0084FF 0%, #0052CC 100%);
  color: #fff !important;
  font-weight: 700;
  font-size: 17px;
  padding: 16px 42px;
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 132, 255, 0.5), inset 0 1px 1px rgba(255, 255, 255, 0.4);
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-hero-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0, 132, 255, 0.7);
}

.hero-micro-text {
  font-size: 13px;
  color: #94A3B8;
  margin-top: 14px;
}

/* ================= BRANDS MARQUEE ================= */
.brands-section {
  padding: 36px 0;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}

.marquee-wrapper {
  position: relative;
  display: flex;
  overflow: hidden;
  user-select: none;
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.marquee-content {
  display: flex;
  gap: 20px;
  animation: marquee-scroll 28s linear infinite;
  flex-shrink: 0;
}

@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.brand-chip-upscale {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 24px;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 700;
  color: #475569;
  white-space: nowrap;
}

.brand-chip-upscale img {
  height: 24px;
  width: auto;
  object-fit: contain;
}

/* ================= SECTION HEADINGS ================= */
.section {
  padding: 100px 0;
}

.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.section-kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title-upscale {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.section-desc-upscale {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================= PARTNERS / CLIENTS ================= */
.partners-section-upscale {
  padding: 100px 0 120px;
  background: #FAFCFF;
}

.partners-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 48px;
}

.tab-btn {
  padding: 10px 28px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 700;
  border: 1px solid #CBD5E1;
  background: #fff;
  color: #64748B;
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.partners-grid-upscale {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.partner-card-upscale {
  background: #FFFFFF;
  border: 1px solid rgba(0, 102, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: 0 10px 30px rgba(0, 102, 255, 0.04);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.partner-card-upscale:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 45px rgba(0, 102, 255, 0.10);
  border-color: rgba(0, 102, 255, 0.25);
}

.partner-crossover {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 24px;
}

.pill-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  color: #1E293B;
  box-shadow: 0 2px 6px rgba(0,0,0,0.02);
}

.pill-badge img {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
}

.pill-badge .pill-ph {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #E2E8F0;
  color: #475569;
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 800;
}

.pill-badge.brand-pill {
  background: #EFF6FF;
  border-color: #BFDBFE;
  color: var(--primary);
}

.crossover-symbol {
  color: #94A3B8;
  font-size: 18px;
  font-weight: 400;
}

.verified-icon-svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.partner-name-title {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.partner-official-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
}

.partner-desc-text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.partner-link-btn {
  margin-top: 16px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  text-decoration: underline;
}

/* ================= 3D API SECTION ================= */
.api-section-upscale {
  padding: 90px 0;
  background: #FFFFFF;
}

.api-grid-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
  background: #F8FAFC;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: clamp(36px, 5vw, 64px);
  box-shadow: var(--shadow-md);
}

.api-mockup-3d {
  position: relative;
  background: linear-gradient(135deg, #E0F2FE 0%, #BAE6FD 50%, #7DD3FC 100%);
  border-radius: var(--radius-md);
  padding: 60px 40px;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 102, 255, 0.12);
  border: 4px solid #FFFFFF;
}

.meta-logo-3d img {
  height: 64px;
  width: auto;
  object-fit: contain;
  margin: 0 auto 16px;
  background: #FFFFFF;
  padding: 8px 20px;
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  display: block;
}

.api-mockup-3d h3 {
  font-family: var(--font-head);
  font-size: 30px;
  font-weight: 900;
  color: #0369A1;
  margin-bottom: 6px;
}

.api-mockup-3d p {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #0284C7;
}

.api-content-side h2 {
  font-family: var(--font-head);
  font-size: clamp(28px, 3.5vw, 38px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-dark);
  margin-bottom: 18px;
}

.api-content-side p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 28px;
}

.btn-primary-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff !important;
  font-weight: 700;
  font-size: 15px;
  padding: 13px 34px;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 18px var(--primary-glow);
  transition: all 0.25s ease;
}

.btn-primary-pill:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px var(--primary-glow);
}

/* ================= BENEFÍCIOS ================= */
.benefits-section-upscale {
  padding: 100px 0;
  background: #FAFCFF;
}

.benefits-pills-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.benefit-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 18px;
  background: #EFF6FF;
  border: 1px solid #BFDBFE;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}

.benefits-grid-upscale {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.benefit-card-clean {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0,0,0,0.02);
}

.benefit-card-clean:hover {
  transform: translateY(-4px);
  border-color: #93C5FD;
  box-shadow: 0 12px 30px rgba(0, 102, 255, 0.08);
}

.benefit-card-clean h3 {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.benefit-card-clean p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ================= FUNCIONALIDADES ================= */
.features-section-upscale {
  padding: 100px 0;
  background: #FFFFFF;
}

.features-grid-upscale {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card-upscale {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-md);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(0,0,0,0.02);
}

.feature-card-upscale:hover {
  transform: translateY(-5px);
  border-color: #93C5FD;
  box-shadow: 0 16px 36px rgba(0, 102, 255, 0.08);
}

.feature-icon-badge {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #EFF6FF;
  border: 1px solid #DBEAFE;
  display: grid;
  place-items: center;
  color: var(--primary);
  margin-bottom: 20px;
}

.feature-card-upscale h3 {
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.feature-card-upscale p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

.btn-card-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff !important;
  font-size: 13px;
  font-weight: 700;
  padding: 9px 24px;
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
}

.btn-card-action:hover {
  background: var(--primary-hover);
}

/* ================= STATS ROW ================= */
.stats-section-upscale {
  padding: 60px 0;
  background: #FAFCFF;
  border-top: 1px solid #E2E8F0;
  border-bottom: 1px solid #E2E8F0;
}

.stats-grid-upscale {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-item-upscale .stat-val {
  font-family: var(--font-head);
  font-size: clamp(36px, 4.5vw, 54px);
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item-upscale p {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

/* ================= PRICING PLANS ================= */
.pricing-section-upscale {
  padding: 110px 0;
  background: #FFFFFF;
}

.pricing-grid-upscale {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  align-items: stretch;
}

.price-card-upscale {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-lg);
  padding: 42px 34px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}

.price-card-upscale:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.price-card-upscale.featured {
  border: 2px solid var(--primary);
  box-shadow: 0 20px 50px rgba(0, 102, 255, 0.15);
  transform: scale(1.04);
}

.price-card-upscale.featured:hover {
  transform: scale(1.04) translateY(-4px);
}

.popular-ribbon {
  position: absolute;
  top: -14px;
  right: 28px;
  background: var(--primary);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.price-card-upscale h3 {
  font-family: var(--font-head);
  font-size: 24px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.price-card-upscale .plan-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.price-val-row {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 28px;
}

.price-val-row .currency {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
}

.price-val-row .amount {
  font-family: var(--font-head);
  font-size: 48px;
  font-weight: 900;
  color: var(--text-dark);
  line-height: 1;
}

.price-val-row .period {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}

.plan-features-list {
  list-style: none;
  margin-bottom: 36px;
  flex-grow: 1;
}

.plan-features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #334155;
  margin-bottom: 14px;
}

.plan-features-list li svg {
  width: 16px;
  height: 16px;
  fill: var(--primary);
  flex-shrink: 0;
}

.btn-plan {
  display: block;
  text-align: center;
  background: #F1F5F9;
  color: #334155;
  font-weight: 700;
  font-size: 15px;
  padding: 14px;
  border-radius: var(--radius-full);
  transition: all 0.25s ease;
}

.price-card-upscale.featured .btn-plan {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-plan:hover {
  background: var(--primary);
  color: #fff;
}

.pricing-disclaimer {
  text-align: center;
  font-size: 13px;
  color: #94A3B8;
  max-width: 720px;
  margin: 48px auto 0;
  line-height: 1.6;
}

/* ================= FAQ ================= */
.faq-section-upscale {
  padding: 100px 0;
  background: #FAFCFF;
  border-top: 1px solid #E2E8F0;
}

.faq-split-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: flex-start;
}

.faq-left-copy h2 {
  font-family: var(--font-head);
  font-size: 38px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.faq-left-copy p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.6;
}

.faq-accordion-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-acc-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: var(--radius-md);
  padding: 22px 26px;
  transition: all 0.2s ease;
}

.faq-acc-card[open] {
  border-color: #93C5FD;
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.05);
}

.faq-acc-card summary {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-acc-card summary::-webkit-details-marker {
  display: none;
}

.faq-acc-card summary::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--primary);
  transition: transform 0.2s;
}

.faq-acc-card[open] summary::after {
  content: '−';
}

.faq-body-text {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-top: 14px;
}

/* ================= FOOTER ================= */
.site-footer-upscale {
  background: #060D20;
  color: #94A3B8;
  padding: 70px 0 40px;
}

.footer-top-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 40px;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-logo {
  font-family: var(--font-head);
  font-size: 28px;
  font-weight: 900;
  color: #FFFFFF;
}

.footer-logo span {
  color: var(--primary);
}

.footer-legal-text {
  font-size: 13px;
  color: #64748B;
  line-height: 1.8;
}

.footer-bottom-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: #64748B;
  flex-wrap: wrap;
  gap: 12px;
}

/* Floating WhatsApp FAB */
.whatsapp-fab-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform 0.25s ease;
}

.whatsapp-fab-btn:hover {
  transform: scale(1.1);
}

/* Responsive */
@media (max-width: 992px) {
  .pricing-grid-upscale { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .price-card-upscale.featured { transform: none; }
  .price-card-upscale.featured:hover { transform: translateY(-4px); }
  .api-grid-card { grid-template-columns: 1fr; }
  .faq-split-grid { grid-template-columns: 1fr; }
  .stats-grid-upscale { grid-template-columns: repeat(2, 1fr); gap: 30px; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }
  .hero-upscale { padding: 70px 0 100px; }
  .stats-grid-upscale { grid-template-columns: 1fr; }
  .partners-grid-upscale { grid-template-columns: 1fr; }
  .benefits-grid-upscale { grid-template-columns: 1fr; }
  .features-grid-upscale { grid-template-columns: 1fr; }
}