:root {
  /* ==========================================================
     Official Meta Enterprise Corporate Theme (Light Architecture)
     Inspired by business.whatsapp.com, Stripe & Twilio Enterprise
     ========================================================== */
  --corp-bg: #f8fafc;
  --corp-bg-pure: #ffffff;
  --corp-bg-subtle: #f1f5f9;
  --corp-bg-card: #ffffff;
  --corp-card-elevated: #ffffff;
  --corp-border-subtle: #e2e8f0;
  --corp-border-hover: #cbd5e1;
  --corp-border-focus: rgba(0, 128, 105, 0.4);
  
  /* Official Meta WhatsApp Business Colors */
  --corp-emerald: #008069;         /* Official Meta WA Green */
  --corp-emerald-light: #25D366;   /* WhatsApp Accent */
  --corp-emerald-deep: #075E54;    /* Deep Forest */
  --corp-emerald-glow: rgba(0, 128, 105, 0.15);
  --corp-emerald-bg: #e6f7f3;      /* Soft Emerald Tint */
  --corp-meta-blue: #0064e0;       /* Official Meta Corporate Blue */
  --corp-meta-blue-bg: #eff6ff;
  
  /* Executive Slate Typography Hierarchy */
  --text-pure: #0f172a;            /* Deepest Obsidian Slate */
  --text-body: #334155;            /* Slate 700 */
  --text-muted: #64748b;           /* Slate 500 */
  --text-subtle: #94a3b8;          /* Slate 400 */

  /* Typography & Geometry */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;
  --corp-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
  --corp-shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --corp-shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.08), 0 0 1px 1px rgba(0, 0, 0, 0.04);
  --transition-smooth: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--corp-bg);
  color: var(--text-pure);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
}

/* Official Architectural Engineering Grid Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(15, 23, 42, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* Subtle Professional Radial Mesh */
.corp-ambient-radial {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 1200px;
  height: 600px;
  background: radial-gradient(ellipse at center, rgba(0, 128, 105, 0.08) 0%, rgba(0, 100, 224, 0.04) 45%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

/* ==========================================================
   1. Official Corporate Top Announcement Bar
   ========================================================== */
.corp-banner {
  background: #ffffff;
  border-bottom: 1px solid var(--corp-border-subtle);
  padding: 8px 16px;
  text-align: center;
  font-size: 0.84rem;
  color: var(--text-body);
  position: relative;
  z-index: 1001;
}

.corp-banner-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #f8fafc;
  border: 1px solid var(--corp-border-subtle);
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  transition: var(--transition-smooth);
}

.corp-banner-pill:hover {
  background: #f1f5f9;
  border-color: #cbd5e1;
}

.corp-banner-tag {
  background: var(--corp-emerald-bg);
  color: var(--corp-emerald);
  font-weight: 700;
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.corp-banner-link {
  color: var(--corp-emerald);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.corp-banner-link:hover {
  text-decoration: underline;
}

/* ==========================================================
   2. Official Executive Header & Navigation
   ========================================================== */
.corp-header {
  position: sticky;
  top: 0;
  width: 100%;
  max-width: 100vw;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--corp-border-subtle);
  z-index: 1000;
  transition: var(--transition-smooth);
  box-sizing: border-box;
}

.corp-nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 16px;
  width: 100%;
  max-width: 1320px;
  padding: 0 20px;
  margin: 0 auto;
  box-sizing: border-box;
}

/* Corporate Brand */
.corp-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.corp-logo-mark {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--corp-emerald) 0%, #065F46 100%);
  border: 1px solid rgba(0, 128, 105, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.25rem;
  box-shadow: 0 4px 12px rgba(0, 128, 105, 0.25);
}

.corp-brand-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-pure);
  letter-spacing: -0.025em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.corp-brand-name span.b-accent {
  color: var(--corp-emerald);
}

.corp-verified-badge {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--corp-emerald);
  background: var(--corp-emerald-bg);
  border: 1px solid rgba(0, 128, 105, 0.3);
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Nav Menu Items */
.corp-nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
  white-space: nowrap;
}

.corp-nav-item {
  position: relative;
}

.corp-nav-link, .corp-nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 11px;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-body);
  text-decoration: none;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  font-family: inherit;
  white-space: nowrap;
}

.corp-nav-link:hover, .corp-nav-btn:hover,
.corp-nav-item:hover .corp-nav-btn,
.corp-nav-item.active .corp-nav-link {
  color: var(--corp-emerald);
  background: #f1f5f9;
}

.corp-chevron {
  font-size: 0.65rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.corp-nav-item:hover .corp-chevron {
  transform: rotate(180deg);
  color: var(--corp-emerald);
}

/* Official Corporate Dropdowns */
.corp-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #ffffff;
  border: 1px solid var(--corp-border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 20px 45px -10px rgba(15, 23, 42, 0.12), 0 0 1px 1px rgba(0, 0, 0, 0.05);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1200;
}

.corp-nav-item:hover .corp-dropdown,
.corp-nav-item.open .corp-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.mega-menu-width {
  width: 680px;
}

.simple-menu-width {
  width: 340px;
}

.dropdown-meta-header {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 14px;
  padding-left: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dropdown-meta-header i {
  color: var(--corp-emerald);
}

.dropdown-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.dropdown-single-col {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.corp-menu-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.corp-menu-card:hover {
  background: #f8fafc;
  border-color: var(--corp-border-subtle);
  transform: translateX(2px);
}

.menu-card-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.icon-auth { background: #fef3c7; color: #b45309; border: 1px solid #fde68a; }
.icon-mktg { background: #fee2e2; color: #b91c1c; border: 1px solid #fecaca; }
.icon-util { background: #dbeafe; color: #1d4ed8; border: 1px solid #bfdbfe; }
.icon-flow { background: #ede9fe; color: #6d28d9; border: 1px solid #ddd6fe; }
.icon-comm { background: #fce7f3; color: #be185d; border: 1px solid #fbcfe8; }
.icon-serv { background: #d1fae5; color: #047857; border: 1px solid #a7f3d0; }
.icon-api { background: #e0f2fe; color: #0369a1; border: 1px solid #bae6fd; }
.icon-doc { background: #dcfce7; color: #15803d; border: 1px solid #bbf7d0; }
.icon-hook { background: #f3e8ff; color: #7e22ce; border: 1px solid #e9d5ff; }

.menu-card-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-pure);
  display: flex;
  align-items: center;
  gap: 8px;
}

.menu-card-tag {
  font-size: 0.65rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--corp-emerald-bg);
  color: var(--corp-emerald);
}

.menu-card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 2px;
}

/* Nav Actions */
.corp-nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin-left: auto;
}

.btn-corp-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-xs);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-body);
  background: #ffffff;
  border: 1px solid var(--corp-border-subtle);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: var(--corp-shadow-sm);
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-corp-ghost:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  color: var(--text-pure);
}

.btn-corp-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-xs);
  font-size: 0.84rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--corp-emerald);
  border: 1px solid rgba(0, 128, 105, 0.4);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 14px rgba(0, 128, 105, 0.25);
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-corp-primary:hover {
  background: #006b57;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 128, 105, 0.35);
}

.corp-mobile-toggle {
  display: none;
  background: #ffffff;
  border: 1px solid var(--corp-border-subtle);
  color: var(--text-pure);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-xs);
  font-size: 1.15rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

/* ==========================================================
   3. Official Executive Hero Section
   ========================================================== */
.corp-hero {
  padding: 70px 0 60px;
  position: relative;
}

.corp-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.corp-hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.corp-trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  background: var(--corp-emerald-bg);
  border: 1px solid rgba(0, 128, 105, 0.25);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--corp-emerald);
  width: fit-content;
}

.corp-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--corp-emerald);
  box-shadow: 0 0 10px var(--corp-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; box-shadow: 0 0 14px var(--corp-emerald); }
  100% { transform: scale(0.95); opacity: 0.7; }
}

.corp-hero-title {
  font-size: 3.3rem;
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--text-pure);
}

.corp-title-highlight {
  color: var(--corp-emerald);
  background: linear-gradient(135deg, var(--corp-emerald) 0%, #0064e0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.corp-hero-subhead {
  font-size: 1.15rem;
  color: var(--text-body);
  line-height: 1.65;
  max-width: 580px;
}

.corp-cta-cluster {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.corp-sla-ribbon {
  display: flex;
  align-items: center;
  gap: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--corp-border-subtle);
}

.corp-sla-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-body);
}

.corp-sla-item i {
  color: var(--corp-emerald);
  font-size: 1rem;
}

/* ==========================================================
   4. Executive Dual-Console Frame (Official Clean Style)
   ========================================================== */
.corp-console-frame {
  background: #ffffff;
  border: 1px solid var(--corp-border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: var(--corp-shadow-lg);
  position: relative;
}

.corp-console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px 14px;
  border-bottom: 1px solid var(--corp-border-subtle);
  margin-bottom: 12px;
}

.console-traffic-lights {
  display: flex;
  gap: 6px;
}

.light-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.light-red { background: #ef4444; }
.light-yellow { background: #f59e0b; }
.light-green { background: #10b981; }

.console-status-pill {
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--corp-emerald);
  background: var(--corp-emerald-bg);
  border: 1px solid rgba(0, 128, 105, 0.2);
  padding: 3px 10px;
  border-radius: 4px;
}

/* Official WhatsApp Chat Window */
.corp-phone-screen {
  background: #efeae2; /* Official WhatsApp Light Wallpaper Color */
  background-image: radial-gradient(rgba(0,0,0,0.04) 1px, transparent 1px);
  background-size: 20px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--corp-border-subtle);
  height: 480px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.corp-phone-top {
  background: #008069; /* WhatsApp Official Header Green */
  color: #ffffff;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.corp-contact-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.corp-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #ffffff;
  color: #008069;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.85rem;
}

.corp-contact-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.corp-contact-sub {
  font-size: 0.72rem;
  color: #d1fae5;
}

.corp-chat-stream {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.corp-msg-bubble {
  max-width: 86%;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 0.86rem;
  line-height: 1.45;
  box-shadow: 0 1px 2px rgba(0,0,0,0.12);
}

.corp-msg-bubble.outgoing {
  align-self: flex-end;
  background: #d9fdd3; /* Official WhatsApp Sent Bubble */
  color: #111b21;
  border-top-right-radius: 2px;
}

.corp-msg-bubble.incoming {
  align-self: flex-start;
  background: #ffffff; /* Official WhatsApp Incoming Bubble */
  color: #111b21;
  border-top-left-radius: 2px;
}

.corp-chat-footer {
  background: #f0f2f5;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid rgba(0,0,0,0.06);
}

.corp-chat-input {
  flex: 1;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 20px;
  padding: 8px 16px;
  color: #111b21;
  font-size: 0.84rem;
  outline: none;
}

.corp-chat-input::placeholder {
  color: #94a3b8;
}

.corp-chat-send {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #008069;
  border: none;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  transition: transform 0.15s;
}

.corp-chat-send:hover {
  transform: scale(1.08);
}

.corp-scenario-bar {
  display: flex;
  gap: 6px;
  margin-top: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.corp-pill-btn {
  background: #f8fafc;
  border: 1px solid var(--corp-border-subtle);
  color: var(--text-body);
  font-size: 0.74rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.corp-pill-btn:hover, .corp-pill-btn.active {
  background: var(--corp-emerald-bg);
  color: var(--corp-emerald);
  border-color: rgba(0, 128, 105, 0.35);
}

/* ==========================================================
   5. International Enterprise Metrics Bar
   ========================================================== */
.corp-metrics-section {
  padding: 30px 0 60px;
}

.corp-metrics-frame {
  background: #ffffff;
  border: 1px solid var(--corp-border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 36px;
  box-shadow: var(--corp-shadow-sm);
}

.corp-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.corp-metric-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-pure);
  letter-spacing: -0.03em;
  font-family: var(--font-mono);
}

.corp-metric-value span {
  color: var(--corp-emerald);
}

.corp-metric-label {
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ==========================================================
   6. General Section White Styling Harmonization
   ========================================================== */
.section {
  background-color: var(--corp-bg);
  color: var(--text-pure);
}

.section-title {
  color: var(--text-pure);
}

.section-desc {
  color: var(--text-muted);
}

.feature-card, .service-card, .pricing-card, .calc-box, .profit-configurator, .margin-table-wrapper {
  background: #ffffff !important;
  border: 1px solid var(--corp-border-subtle) !important;
  color: var(--text-pure) !important;
  box-shadow: var(--corp-shadow-sm) !important;
}

.feature-title, .service-title, .tier-name {
  color: var(--text-pure) !important;
}

.feature-desc, .service-desc, .tier-desc {
  color: var(--text-body) !important;
}

.pricing-card.featured {
  background: #ffffff !important;
  border: 2px solid var(--corp-emerald) !important;
  box-shadow: 0 20px 45px -10px rgba(0, 128, 105, 0.15) !important;
}

.pricing-card .price-amount {
  color: var(--text-pure) !important;
}

.margin-table th {
  background: #f8fafc !important;
  color: var(--text-muted) !important;
  border-bottom: 1px solid var(--corp-border-subtle) !important;
}

.margin-table td {
  border-bottom: 1px solid var(--corp-border-subtle) !important;
  color: var(--text-pure) !important;
}

.wholesale-cost {
  color: var(--text-muted) !important;
}

.resell-price {
  color: var(--text-pure) !important;
}

.profit-stat-card {
  background: #f8fafc !important;
  border: 1px solid var(--corp-border-subtle) !important;
}

.profit-number {
  color: var(--corp-emerald) !important;
}

.calc-output-box {
  background: #f8fafc !important;
  border: 1px solid var(--corp-border-subtle) !important;
}

.calc-output-box #estTotal {
  color: var(--text-pure) !important;
}

.footer {
  background: #0f172a !important;
  color: #94a3b8 !important;
  border-top: 1px solid #1e293b !important;
}

.footer-col h4 {
  color: #ffffff !important;
}

/* Modal Styling in White Mode */
.modal-container {
  background: #ffffff !important;
  border: 1px solid var(--corp-border-subtle) !important;
  color: var(--text-pure) !important;
  box-shadow: var(--corp-shadow-lg) !important;
}

.modal-header, .wizard-steps, .modal-footer {
  border-color: var(--corp-border-subtle) !important;
  background: #f8fafc !important;
}

.form-label {
  color: var(--text-pure) !important;
}

.form-input, .form-select {
  background: #ffffff !important;
  border: 1px solid var(--corp-border-subtle) !important;
  color: var(--text-pure) !important;
}

.form-input:focus, .form-select:focus {
  border-color: var(--corp-emerald) !important;
  background: #ffffff !important;
}

/* ==========================================================
   Responsive Adaptations & Layout Robustness
   ========================================================== */
.corp-mobile-drawer-cta {
  display: none;
}

@media (max-width: 1280px) {
  .corp-nav-container {
    padding: 0 16px;
    gap: 12px;
  }
  .corp-nav-link, .corp-nav-btn {
    padding: 6px 8px;
    font-size: 0.82rem;
  }
  .btn-corp-ghost {
    padding: 7px 12px;
    font-size: 0.8rem;
  }
  .btn-corp-primary {
    padding: 8px 14px;
    font-size: 0.82rem;
  }
}

@media (max-width: 1140px) {
  .corp-nav-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid var(--corp-border-subtle);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    gap: 8px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    max-height: 82vh;
    overflow-y: auto;
  }
  .corp-nav-menu.mobile-open {
    display: flex;
  }
  .corp-nav-item {
    width: 100%;
  }
  .corp-nav-link, .corp-nav-btn {
    width: 100%;
    justify-content: space-between;
    padding: 12px 14px;
    font-size: 0.92rem;
    background: #f8fafc;
    border-radius: var(--radius-xs);
  }
  .corp-dropdown {
    position: static;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    display: none;
    width: 100% !important;
    box-shadow: none;
    background: #f1f5f9;
    margin-top: 8px;
    padding: 10px;
    border-radius: 12px;
  }
  .corp-nav-item.mobile-expanded .corp-dropdown {
    display: block;
  }
  .dropdown-matrix {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .corp-menu-card {
    padding: 8px 10px;
  }
  .corp-mobile-toggle {
    display: flex;
  }
  .corp-mobile-drawer-cta {
    display: block;
    margin-top: 12px;
    padding-top: 14px;
    border-top: 1px solid var(--corp-border-subtle);
  }
  .mega-menu-width {
    width: 100%;
  }
}

@media (max-width: 1080px) {
  .corp-hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .corp-hero-content {
    align-items: center;
  }
  .corp-hero-title {
    font-size: clamp(2.2rem, 5vw, 2.8rem);
  }
  .corp-sla-ribbon {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .section {
    padding: 56px 0;
  }
  .section-title {
    font-size: 1.85rem;
    line-height: 1.25;
  }
  .section-desc {
    font-size: 0.9rem;
    margin-bottom: 24px;
  }
  .corp-metrics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px 12px;
  }
  .corp-metrics-frame {
    padding: 20px 16px;
  }
  .meta-services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .configurator-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .api-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .calc-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 640px) {
  /* Top Banner */
  .corp-banner {
    padding: 6px 10px;
    font-size: 0.74rem;
  }
  .corp-banner-pill {
    padding: 4px 10px;
    gap: 6px;
    font-size: 0.74rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  .corp-banner-text {
    display: none;
  }

  /* Header Bar */
  .corp-nav-container {
    padding: 0 12px;
    height: 62px;
    gap: 8px;
  }
  .corp-brand {
    gap: 8px;
  }
  .corp-logo-mark {
    width: 34px;
    height: 34px;
    font-size: 1.1rem;
  }
  .corp-brand-name {
    font-size: 1.05rem;
  }
  .corp-verified-badge {
    display: none;
  }
  .corp-nav-actions {
    gap: 6px;
  }
  .btn-corp-ghost {
    display: none; /* Secondary Sandbox button is accessible in mobile drawer */
  }
  .btn-corp-primary {
    padding: 7px 12px;
    font-size: 0.78rem;
  }
  .corp-mobile-toggle {
    width: 36px;
    height: 36px;
    font-size: 1.05rem;
  }
  .corp-nav-menu {
    top: 62px;
    padding: 14px 16px 20px;
  }

  /* Hero Section */
  .corp-hero-section {
    padding: 32px 0 24px;
  }
  .corp-hero-title {
    font-size: clamp(1.85rem, 6.5vw, 2.25rem);
    line-height: 1.2;
  }
  .corp-hero-desc {
    font-size: 0.92rem;
    margin-bottom: 20px;
  }
  .corp-cta-cluster {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }
  .corp-cta-cluster .btn-corp-primary,
  .corp-cta-cluster .btn-corp-ghost {
    width: 100%;
    justify-content: center;
    padding: 12px 18px;
    font-size: 0.92rem;
  }
  .corp-sla-ribbon {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 10px;
    padding-top: 16px;
    margin-top: 18px;
    text-align: left;
  }
  .corp-sla-item {
    font-size: 0.76rem;
    gap: 6px;
  }

  /* WhatsApp Simulator on Mobile */
  .corp-console-frame {
    padding: 10px;
    border-radius: 14px;
    margin-top: 20px;
    box-sizing: border-box;
    width: 100%;
  }
  .corp-console-header {
    padding: 4px 8px 10px;
    margin-bottom: 8px;
  }
  .corp-phone-screen {
    height: 390px;
    border-radius: 12px;
  }
  .corp-phone-top {
    padding: 8px 10px;
  }
  .corp-avatar {
    width: 30px;
    height: 30px;
    font-size: 0.75rem;
  }
  .corp-contact-name {
    font-size: 0.82rem;
  }
  .corp-contact-sub {
    font-size: 0.65rem;
  }
  .corp-chat-stream {
    padding: 12px 10px;
    gap: 10px;
  }
  .corp-msg-bubble {
    max-width: 92%;
    font-size: 0.8rem;
    padding: 8px 10px;
  }
  .corp-chat-footer {
    padding: 8px 10px;
    gap: 8px;
  }
  .corp-chat-input {
    padding: 6px 12px;
    font-size: 0.78rem;
  }
  .corp-chat-send {
    width: 30px;
    height: 30px;
    font-size: 0.75rem;
  }
  .corp-scenario-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    justify-content: flex-start;
    padding: 6px 2px 8px;
    gap: 6px;
    scrollbar-width: none;
  }
  .corp-scenario-bar::-webkit-scrollbar {
    display: none;
  }
  .corp-pill-btn {
    white-space: nowrap;
    flex-shrink: 0;
    font-size: 0.72rem;
    padding: 5px 10px;
  }

  /* Metrics Ribbon */
  .corp-metrics-section {
    padding: 16px 0 32px;
  }
  .corp-metrics-frame {
    padding: 16px 12px;
    border-radius: 12px;
  }
  .corp-metric-value {
    font-size: 1.55rem;
  }
  .corp-metric-label {
    font-size: 0.7rem;
  }

  /* Cards & Forms */
  .service-card {
    padding: 20px 16px;
    border-radius: 14px;
  }
  .feature-card {
    padding: 20px 16px;
    border-radius: 14px;
  }
  .feature-icon {
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    margin-bottom: 14px;
  }

  /* Margin Table & Configurator */
  .margin-table-wrapper {
    margin-top: 18px;
    border-radius: 12px;
    border: 1px solid var(--corp-border-subtle);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .margin-table {
    min-width: 560px;
  }
  .margin-table th {
    padding: 10px 12px;
    font-size: 0.72rem;
  }
  .margin-table td {
    padding: 12px 12px;
    font-size: 0.8rem;
  }
  .profit-configurator {
    padding: 18px 14px;
    border-radius: 14px;
  }
  .profit-stat-card {
    padding: 16px 12px;
  }
  .profit-number {
    font-size: 2.1rem;
  }

  /* Developer Code Box */
  .code-box {
    border-radius: 12px;
  }
  .code-header {
    padding: 8px 10px;
  }
  .code-tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    gap: 4px;
  }
  .code-tab {
    padding: 4px 8px;
    font-size: 0.74rem;
    white-space: nowrap;
  }
  .code-content {
    padding: 12px 10px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .code-content pre code {
    font-size: 0.72rem;
  }
  .code-footer {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px;
  }
  .test-run-btn {
    width: 100%;
    justify-content: center;
  }
  .api-grid .btn {
    width: 100%;
    justify-content: center;
    margin-bottom: 8px;
  }

  /* Pricing Cards */
  .pricing-card {
    padding: 22px 16px;
    border-radius: 14px;
  }
  .pricing-card.featured {
    transform: none !important;
  }
  .price-amount {
    font-size: 2.2rem;
  }
  .pricing-cta {
    width: 100%;
  }
  .volume-calculator {
    padding: 18px 14px;
    border-radius: 14px;
  }

  /* Onboarding Modal */
  .modal-backdrop {
    padding: 8px;
    align-items: flex-end;
  }
  .modal-container {
    max-height: 88vh;
    border-radius: 18px 18px 0 0;
    overflow-y: auto;
  }
  .modal-header {
    padding: 14px 16px;
  }
  .wizard-steps {
    padding: 10px 14px;
  }
  .step-indicator span {
    font-size: 0.7rem;
  }
  .modal-body {
    padding: 14px 16px;
  }

  /* Footer */
  .footer {
    padding: 44px 0 20px;
  }
  .footer-col h4 {
    margin-bottom: 12px;
  }
}