/* ==========================================================================
   UPI Send — High-Converting Fintech Landing Page Stylesheet
   Mobile-First & Pixel-Perfect Responsive Design
   Designed for upisend.in | India Fintech Aesthetic
   ========================================================================== */

:root {
  /* Brand Colors */
  --color-primary: #1d4ed8;
  --color-primary-dark: #1e40af;
  --color-primary-light: #3b82f6;
  --color-accent: #38bdf8;
  --color-accent-soft: rgba(56, 189, 248, 0.12);
  
  /* Dark Navy Gradients */
  --bg-navy-dark: #060f22;
  --bg-navy-mid: #0b1a33;
  --bg-navy-light: #13274c;
  --bg-navy-card: rgba(19, 39, 76, 0.75);
  
  /* Light Neutral Palette */
  --bg-body: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-subtle: #f1f5f9;
  
  /* Functional Accents */
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.08);
  --color-warning: #f59e0b;
  
  /* Typography */
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #94a3b8;
  --text-white: #ffffff;
  
  /* Borders & Shadows */
  --border-light: #e2e8f0;
  --border-subtle: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.08), 0 4px 10px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 35px -8px rgba(11, 26, 51, 0.14), 0 10px 15px -3px rgba(11, 26, 51, 0.06);
  --shadow-glow: 0 0 40px -10px rgba(29, 78, 216, 0.35);

  /* Fonts */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  /* Container Width */
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-navy-dark);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  line-height: 1.6;
  background-color: var(--bg-body);
  color: var(--text-main);
  overflow-x: hidden;
  position: relative;
  width: 100%;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-muted);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

.text-center { text-align: center; }
.text-blue { color: var(--color-primary) !important; }
.text-accent { color: var(--color-accent) !important; }
.text-red { color: var(--color-danger) !important; }
.text-green { color: var(--color-success) !important; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  white-space: nowrap;
  touch-action: manipulation;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(29, 78, 216, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  color: var(--text-white);
  box-shadow: 0 6px 20px rgba(29, 78, 216, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-white);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-accent);
  border-color: rgba(56, 189, 248, 0.4);
}

.btn-ghost {
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
  padding: 8px 14px;
}

.btn-ghost:hover {
  color: var(--text-white);
  background: rgba(255, 255, 255, 0.08);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 15px 28px;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
}

.pulse-hover:hover {
  animation: pulseGlow 1.5s infinite;
}

@keyframes pulseGlow {
  0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.6); }
  70% { box-shadow: 0 0 0 12px rgba(37, 99, 235, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

/* Top Announcement Banner */
.top-banner {
  background: linear-gradient(90deg, #1e3a8a 0%, #1e40af 100%);
  color: #e2e8f0;
  font-size: 0.82rem;
  padding: 8px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.banner-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  text-align: center;
}

.banner-badge {
  background: #22c55e;
  color: #064e3b;
  font-weight: 800;
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.banner-link {
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: underline;
  white-space: nowrap;
}

.banner-link:hover {
  color: #ffffff;
}

/* Site Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6, 15, 34, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s ease;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 36px;
  width: auto;
  max-width: 150px;
  object-fit: contain;
  display: block;
}

.brand-logo-img-mobile {
  height: 32px;
  width: auto;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 26px;
}

.mobile-nav-header {
  display: none;
}

.mobile-nav-cta {
  display: none;
}

.nav-link {
  color: #cbd5e1;
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--color-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  gap: 4px;
}

.mobile-toggle span {
  width: 20px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 998;
}

/* ==========================================================================
   Hero Section (Deep Navy Fintech Gradient)
   ========================================================================== */
.hero-section {
  position: relative;
  background: radial-gradient(circle at 50% 10%, #173264 0%, #0b1a33 50%, #060f22 100%);
  color: var(--text-white);
  padding: 70px 0 85px 0;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
  opacity: 0.35;
}

.hero-glow-1 {
  width: 500px;
  height: 500px;
  top: -100px;
  left: 10%;
  background: #1d4ed8;
}

.hero-glow-2 {
  width: 350px;
  height: 350px;
  bottom: 0;
  right: 5%;
  background: #0284c7;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  position: relative;
  z-index: 10;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--color-accent);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 600;
  width: fit-content;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: pulseGreen 1.8s infinite;
  flex-shrink: 0;
}

@keyframes pulseGreen {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  font-weight: 800;
  line-height: 1.18;
  color: #ffffff;
  letter-spacing: -0.03em;
}

.highlight-text {
  color: #38bdf8;
}

.hero-subtitle {
  font-size: clamp(0.98rem, 2vw, 1.12rem);
  line-height: 1.65;
  color: #cbd5e1;
}

.hero-subtitle strong {
  color: #ffffff;
}

.hero-cta-group {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.hero-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.82rem;
  color: #94a3b8;
  font-weight: 500;
}

/* ==========================================================================
   Hero Mockups (Responsive Dual / Tabbed Layout)
   ========================================================================== */
.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  width: 100%;
}

.mockup-mobile-tabs {
  display: none;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  padding: 4px;
  margin-bottom: 18px;
  gap: 6px;
}

.mockup-tab-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  color: #94a3b8;
  border: none;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.mockup-tab-btn.active {
  background: #1d4ed8;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(29, 78, 216, 0.4);
}

.mockup-stage {
  position: relative;
  width: 100%;
  max-width: 480px;
  min-height: 500px;
}

.phone-frame {
  position: absolute;
  width: 280px;
  border-radius: 34px;
  background: #0f172a;
  border: 6px solid #1e293b;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6), 0 0 35px rgba(29, 78, 216, 0.2);
  overflow: hidden;
  transition: all 0.35s ease;
}

.phone-speaker {
  width: 55px;
  height: 4px;
  background: #334155;
  border-radius: 2px;
  margin: 9px auto 6px auto;
}

/* WhatsApp Phone (Left) */
.phone-whatsapp {
  left: 0;
  top: 10px;
  z-index: 2;
  background: #0b141a;
  transform: rotate(-3deg);
}

.phone-whatsapp:hover {
  transform: rotate(0deg) scale(1.02);
  z-index: 5;
}

.wa-header {
  background: #1f2c34;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid #2a3942;
}

.wa-avatar {
  width: 30px;
  height: 30px;
  background: #00a884;
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.wa-contact-name {
  color: #e9edef;
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1.2;
}

.wa-status {
  font-size: 0.68rem;
  color: #8696a0;
}

.wa-chat-body {
  padding: 12px 9px;
  background: #0b141a;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.wa-bubble {
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.75rem;
  max-width: 95%;
  position: relative;
}

.wa-received {
  background: #202c33;
  color: #e9edef;
  align-self: flex-start;
  border-top-left-radius: 0;
}

.wa-sent {
  background: #005c4b;
  color: #e9edef;
  align-self: flex-end;
  border-top-right-radius: 0;
  width: 95%;
}

.wa-time {
  display: block;
  font-size: 0.62rem;
  color: #8696a0;
  text-align: right;
  margin-top: 3px;
}

.blue-ticks {
  color: #53bdeb;
  font-weight: bold;
}

.wa-payment-card-preview {
  background: #ffffff;
  color: #0f172a;
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 6px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.biz-pill {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #1e3a8a;
}

.verified-tag {
  background: #ecfdf5;
  color: #059669;
  font-size: 0.62rem;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 4px;
}

.preview-amount-box {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 5px 8px;
  text-align: center;
}

.preview-lbl {
  font-size: 0.62rem;
  color: #64748b;
  display: block;
}

.preview-amt {
  font-size: 1.05rem;
  font-weight: 800;
  color: #1d4ed8;
}

.preview-note {
  font-size: 0.68rem;
  color: #334155;
  margin: 5px 0;
}

.preview-qr-mini {
  display: flex;
  justify-content: center;
  margin: 3px 0;
}

.preview-qr-mini img {
  width: 65px;
  height: 65px;
  border-radius: 4px;
  border: 1px solid #cbd5e1;
  padding: 2px;
  background: #ffffff;
}

.preview-footer-btn {
  background: #1d4ed8;
  color: #ffffff;
  text-align: center;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 5px;
  border-radius: 4px;
  margin-top: 5px;
}

.wa-link-text {
  font-size: 0.72rem;
  line-height: 1.35;
}

.wa-url {
  color: #53bdeb;
  text-decoration: underline;
  word-break: break-all;
  display: inline-block;
}

/* Customer Payment Screen (Right) */
.phone-checkout {
  right: 0;
  top: 50px;
  z-index: 3;
  background: #ffffff;
  transform: rotate(3deg);
}

.phone-checkout:hover {
  transform: rotate(0deg) scale(1.02);
  z-index: 5;
}

.checkout-screen {
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checkout-top {
  text-align: center;
}

.biz-logo-badge {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #1d4ed8, #3b82f6);
  color: #ffffff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.95rem;
  margin: 0 auto 5px auto;
  box-shadow: 0 4px 10px rgba(29, 78, 216, 0.25);
}

.biz-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #0f172a;
}

.biz-upi-id {
  font-size: 0.7rem;
  color: #64748b;
  font-family: var(--font-mono);
}

.checkout-bill-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 10px;
  text-align: center;
}

.bill-label {
  font-size: 0.68rem;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.bill-amount {
  font-size: 1.35rem;
  font-weight: 800;
  color: #0f172a;
  margin: 2px 0;
}

.bill-desc {
  font-size: 0.72rem;
  color: #475569;
}

.zero-fee-tag {
  display: inline-block;
  background: #ecfdf5;
  color: #059669;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 20px;
  margin-top: 4px;
}

.upi-action-buttons {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.upi-app-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 7px;
  font-size: 0.74rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease;
  border: 1px solid #e2e8f0;
}

.gpay-btn { background: #ffffff; color: #1f2937; border-color: #d1d5db; }
.phonepe-btn { background: #5f259f; color: #ffffff; border-color: #5f259f; }
.paytm-btn { background: #002970; color: #ffffff; border-color: #002970; }

.upi-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 900;
  flex-shrink: 0;
}

.gpay-icon { background: #4285f4; color: #ffffff; }
.phonepe-icon { background: #ffffff; color: #5f259f; }
.paytm-icon { background: #00baf2; color: #ffffff; }

.checkout-security-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: 0.62rem;
  color: #64748b;
  margin-top: 2px;
}

/* ==========================================================================
   Section Layout Standards
   ========================================================================= */
.section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  max-width: 760px;
  margin: 0 auto 44px auto;
}

.sub-heading {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.65rem, 3.8vw, 2.3rem);
  font-weight: 800;
  line-height: 1.25;
  color: #0f172a;
  margin-bottom: 14px;
}

.section-desc {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--text-muted);
}

/* ==========================================================================
   Problem Section
   ========================================================================== */
.problem-section {
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: 20px;
}

.problem-card {
  background: #fdfefe;
  border: 1px solid #fee2e2;
  border-radius: var(--radius-lg);
  padding: 26px 20px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
}

.problem-card:hover {
  transform: translateY(-2px);
  border-color: #fca5a5;
}

.problem-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

.problem-card h3 {
  font-size: 1.12rem;
  color: #991b1b;
  margin-bottom: 8px;
}

.problem-card p {
  font-size: 0.92rem;
  color: #4b5563;
}

/* ==========================================================================
   Interactive Savings Calculator
   ========================================================================== */
.calculator-section {
  background: #f8fafc;
  border-bottom: 1px solid var(--border-light);
}

.calc-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
  align-items: center;
}

.calc-highlight-box {
  display: flex;
  gap: 14px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: 18px;
  margin-top: 20px;
}

.calc-highlight-box .h-icon {
  font-size: 1.6rem;
  flex-shrink: 0;
}

.calc-highlight-box .h-text {
  font-size: 0.92rem;
  color: #1e3a8a;
  line-height: 1.5;
}

.calc-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  box-shadow: var(--shadow-xl);
}

.calc-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 14px;
}

.calc-card-header h3 {
  font-size: 1.2rem;
}

.calc-pill {
  background: #ecfdf5;
  color: #059669;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: var(--radius-full);
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.slider-label-row label {
  font-weight: 600;
  color: #334155;
  font-size: 0.9rem;
}

.slider-val {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

.custom-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: #e2e8f0;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  touch-action: none;
}

.custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #ffffff;
  box-shadow: 0 2px 8px rgba(29, 78, 216, 0.4);
  cursor: pointer;
}

.custom-slider::-moz-range-thumb {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #ffffff;
  box-shadow: 0 2px 8px rgba(29, 78, 216, 0.4);
  cursor: pointer;
}

.slider-markers {
  display: flex;
  justify-content: space-between;
  font-size: 0.74rem;
  color: #94a3b8;
  margin-top: 8px;
  margin-bottom: 24px;
}

.calc-results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

.result-box {
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 14px;
}

.res-title {
  display: block;
  font-size: 0.76rem;
  color: #64748b;
  margin-bottom: 4px;
}

.res-amount {
  font-size: 1.3rem;
  font-weight: 800;
  display: block;
  font-family: var(--font-mono);
}

.res-sub {
  font-size: 0.7rem;
  color: #94a3b8;
}

.savings-banner {
  background: linear-gradient(135deg, #0b1a33 0%, #172554 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
}

.savings-label {
  font-size: 0.82rem;
  color: #93c5fd;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.savings-huge {
  font-size: clamp(2rem, 5vw, 2.5rem);
  font-weight: 800;
  color: #38bdf8;
  margin: 4px 0;
  font-family: var(--font-mono);
}

.savings-tagline {
  font-size: 0.82rem;
  color: #cbd5e1;
  margin-bottom: 16px;
}

/* ==========================================================================
   How It Works (3 Steps)
   ========================================================================== */
.how-it-works-section {
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 24px;
}

.step-card {
  position: relative;
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.step-card:hover {
  transform: translateY(-3px);
  border-color: #bfdbfe;
  box-shadow: var(--shadow-lg);
}

.step-number {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 2.2rem;
  font-weight: 900;
  color: #e2e8f0;
  font-family: var(--font-mono);
}

.step-icon-wrap {
  width: 52px;
  height: 52px;
  background: #eff6ff;
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step-card h3 {
  font-size: 1.18rem;
  margin-bottom: 10px;
  color: #0f172a;
}

.step-card p {
  font-size: 0.92rem;
  color: #475569;
  margin-bottom: 18px;
  flex-grow: 1;
}

.step-badge {
  align-self: flex-start;
  background: #e0f2fe;
  color: #0369a1;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

/* ==========================================================================
   Comparison Table Section
   ========================================================================== */
.comparison-section {
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
}

.table-scroll-hint {
  display: none;
  text-align: center;
  font-size: 0.78rem;
  color: #64748b;
  margin-bottom: 12px;
  font-weight: 600;
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
}

.comparison-table {
  width: 100%;
  min-width: 560px;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #ffffff;
  box-shadow: var(--shadow-md);
}

.comparison-table th {
  padding: 16px 20px;
  font-size: 0.95rem;
  font-weight: 700;
  text-align: left;
  border-bottom: 2px solid var(--border-light);
}

.comparison-table th small {
  font-weight: 400;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.comparison-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.92rem;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.feature-col { width: 34%; }
.gateway-col { width: 33%; background: #f8fafc; color: #475569; }
.upisend-col { width: 33%; }

.highlight-col {
  background: #eff6ff;
  color: #1e3a8a;
  border-left: 2px solid #3b82f6;
  border-right: 2px solid #3b82f6;
}

.highlight-cell {
  background: #f0fdf4 !important;
  color: #065f46;
}

.feature-title strong {
  display: block;
  font-size: 0.94rem;
  color: #0f172a;
}

.feature-title span {
  font-size: 0.76rem;
  color: #64748b;
}

.gateway-val.bad {
  color: #dc2626;
  font-weight: 600;
}

.upisend-val.good {
  color: #047857;
  font-weight: 700;
}

/* ==========================================================================
   Features Grid
   ========================================================================== */
.features-section {
  background: #f8fafc;
  border-bottom: 1px solid var(--border-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: 20px;
}

.feature-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  transition: all 0.25s ease;
}

.feature-box:hover {
  transform: translateY(-2px);
  border-color: #93c5fd;
  box-shadow: var(--shadow-md);
}

.f-icon {
  font-size: 1.7rem;
  margin-bottom: 14px;
}

.feature-box h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: #0f172a;
}

.feature-box p {
  font-size: 0.9rem;
  color: #475569;
}

/* ==========================================================================
   Audience / Who It's For Grid
   ========================================================================== */
.audience-section {
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
}

.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 16px;
}

.audience-card {
  background: #f8fafc;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  transition: transform 0.2s ease;
}

.audience-card:hover {
  transform: translateY(-2px);
  background: #ffffff;
  border-color: #cbd5e1;
  box-shadow: var(--shadow-sm);
}

.aud-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.audience-card h4 {
  font-size: 1rem;
  margin-bottom: 5px;
  color: #0f172a;
}

.audience-card p {
  font-size: 0.86rem;
  color: #64748b;
  line-height: 1.45;
}

/* ==========================================================================
   Pricing Section
   ========================================================================== */
.pricing-section {
  background: #f8fafc;
  border-bottom: 1px solid var(--border-light);
}

.pricing-card-wrapper {
  max-width: 500px;
  margin: 0 auto;
}

.pricing-card {
  background: #ffffff;
  border: 2px solid #2563eb;
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  box-shadow: 0 20px 40px -10px rgba(29, 78, 216, 0.2);
  position: relative;
}

.pricing-popular-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 5px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(29, 78, 216, 0.35);
  white-space: nowrap;
}

.pricing-header {
  text-align: center;
  margin-top: 8px;
}

.plan-name {
  font-size: 1.5rem;
  color: #0f172a;
  margin-bottom: 4px;
}

.plan-desc {
  font-size: 0.9rem;
  color: #64748b;
}

.pricing-rate {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 3px;
  margin: 18px 0 6px 0;
}

.pricing-rate .currency {
  font-size: 1.7rem;
  font-weight: 800;
  color: #0f172a;
}

.pricing-rate .amount {
  font-size: clamp(3rem, 8vw, 3.6rem);
  font-weight: 900;
  color: #1d4ed8;
  font-family: var(--font-mono);
  line-height: 1;
}

.pricing-rate .period {
  font-size: 1.05rem;
  color: #64748b;
  font-weight: 600;
}

.pricing-subtext {
  font-size: 0.85rem;
  color: #059669;
  background: #ecfdf5;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  display: inline-block;
  font-weight: 600;
}

.pricing-divider {
  height: 1px;
  background: var(--border-light);
  margin: 24px 0;
}

.pricing-features-list {
  display: flex;
  flex-direction: column;
  gap: 13px;
  margin-bottom: 28px;
}

.p-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: #334155;
}

.p-item svg {
  flex-shrink: 0;
}

.pricing-cta-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-guarantee {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 0.78rem;
  color: #059669;
  font-weight: 600;
}

/* ==========================================================================
   Trust & Security Box
   ========================================================================== */
.trust-section {
  background: #ffffff;
  padding: 50px 0;
  border-bottom: 1px solid var(--border-light);
}

.trust-box {
  background: #0b1a33;
  color: #ffffff;
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  box-shadow: var(--shadow-xl);
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 24px;
}

.trust-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.t-icon {
  font-size: 1.6rem;
}

.trust-item h4 {
  color: #ffffff;
  font-size: 1.05rem;
}

.trust-item p {
  color: #94a3b8;
  font-size: 0.86rem;
  line-height: 1.45;
}

/* ==========================================================================
   FAQ Section Accordion
   ========================================================================== */
.faq-section {
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
}

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #f8fafc;
  transition: border-color 0.2s ease;
}

.faq-item:hover {
  border-color: #cbd5e1;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: transparent;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  color: #0f172a;
  cursor: pointer;
  gap: 12px;
  touch-action: manipulation;
}

.faq-icon {
  font-size: 1.3rem;
  font-weight: 700;
  color: #1d4ed8;
  transition: transform 0.25s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 20px;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 18px;
  transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
}

.faq-answer p {
  font-size: 0.92rem;
  color: #475569;
  line-height: 1.55;
}

/* ==========================================================================
   CTA Form Embed Container Section (Deftform Styled)
   ========================================================================== */
.cta-section {
  background: radial-gradient(circle at 50% 10%, #173264 0%, #0b1a33 60%, #060f22 100%);
  color: #ffffff;
  padding: 85px 0;
}

.cta-card {
  position: relative;
  background: rgba(19, 39, 76, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-xl);
  padding: 50px 30px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.cta-tag {
  display: inline-block;
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.cta-title {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  color: #ffffff;
  margin-bottom: 14px;
  font-weight: 800;
}

.cta-desc {
  font-size: clamp(0.95rem, 1.8vw, 1.12rem);
  color: #cbd5e1;
  max-width: 650px;
  margin: 0 auto 30px auto;
}

/* Deftform Container & Styling */
.cta-form-container {
  max-width: 620px;
  margin: 0 auto 26px auto;
  text-align: left;
  width: 100%;
}

.deftform-card-wrapper {
  background: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xl);
  padding: 20px 16px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  transition: all 0.3s ease;
}

.deftform {
  width: 100% !important;
  max-width: 100% !important;
}

.deftform iframe {
  width: 100% !important;
  max-width: 100% !important;
  border: none !important;
  border-radius: 12px;
  display: block;
}

.cta-guarantee-row {
  display: flex;
  justify-content: center;
  gap: 18px;
  font-size: 0.82rem;
  color: #94a3b8;
  flex-wrap: wrap;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #060f22;
  color: #94a3b8;
  padding: 60px 0 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.footer-tagline {
  font-size: 0.88rem;
  margin-top: 12px;
  margin-bottom: 14px;
  color: #94a3b8;
}

.footer-app-link {
  font-size: 0.82rem;
}

.footer-app-link a {
  color: #38bdf8;
  font-weight: 600;
}

.footer-nav-col h4 {
  color: #ffffff;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-nav-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-nav-col a, .footer-nav-col span {
  color: #94a3b8;
  font-size: 0.85rem;
  transition: color 0.2s ease;
}

.footer-nav-col a:hover {
  color: #ffffff;
}

.footer-disclaimer-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 24px;
}

.footer-disclaimer-box p {
  font-size: 0.76rem;
  color: #64748b;
  line-height: 1.55;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.8rem;
  color: #64748b;
  flex-wrap: wrap;
  gap: 8px;
}

/* ==========================================================================
   Mobile Floating Sticky CTA Bar
   ========================================================================== */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(6, 15, 34, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 10px 16px;
  padding-bottom: calc(10px + env(safe-area-inset-bottom));
  z-index: 990;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.mobile-sticky-bar.visible {
  transform: translateY(0);
}

.sticky-bar-info {
  display: flex;
  flex-direction: column;
}

.sticky-bar-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: #ffffff;
}

.sticky-bar-price {
  font-size: 0.72rem;
  color: #38bdf8;
  font-weight: 600;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

/* Tablet & Smaller Desktop (≤ 1024px) */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-content {
    align-items: center;
  }

  .hero-cta-group {
    justify-content: center;
  }

  .hero-trust-row {
    justify-content: center;
  }

  .calc-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

/* Tablets & Mobile (≤ 768px) */
@media (max-width: 768px) {
  .top-banner {
    font-size: 0.78rem;
    padding: 6px 12px;
  }

  .header-container {
    height: 62px;
  }

  .header-login-btn {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  /* Slide-in Mobile Drawer */
  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 82%;
    max-width: 320px;
    height: 100vh;
    background: #081328;
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 20px;
    gap: 16px;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 999;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.6);
    overflow-y: auto;
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .mobile-overlay.active {
    display: block;
  }

  .mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 8px;
  }

  .mobile-close-btn {
    background: transparent;
    border: none;
    color: #ffffff;
    font-size: 1.8rem;
    cursor: pointer;
    line-height: 1;
    padding: 4px;
  }

  .nav-menu .nav-link {
    font-size: 1.05rem;
    padding: 8px 0;
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .mobile-nav-cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    margin-top: 16px;
    padding-top: 12px;
  }

  /* Mockup Layout on Mobile */
  .mockup-mobile-tabs {
    display: flex;
  }

  .mockup-stage {
    min-height: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
  }

  .phone-frame {
    position: relative;
    top: 0 !important;
    left: auto !important;
    right: auto !important;
    transform: none !important;
    width: 100%;
    max-width: 310px;
    margin: 0 auto;
    display: none;
    animation: fadeInMockup 0.3s ease;
  }

  .phone-frame.active-mobile-view {
    display: block;
  }

  @keyframes fadeInMockup {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .table-scroll-hint {
    display: block;
  }

  .section {
    padding: 60px 0;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .mobile-sticky-bar {
    display: flex;
  }
}

/* Small Smartphone View (≤ 480px) */
@media (max-width: 480px) {
  .top-banner .banner-text {
    font-size: 0.74rem;
  }

  .hero-section {
    padding: 48px 0 60px 0;
  }

  .hero-tag {
    font-size: 0.76rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta-group .btn {
    width: 100%;
  }

  .hero-trust-row {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .phone-frame {
    max-width: 290px;
    border-width: 5px;
    border-radius: 28px;
  }

  .calc-card {
    padding: 20px 16px;
    border-radius: var(--radius-lg);
  }

  .calc-results-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .savings-huge {
    font-size: 2.1rem;
  }

  .pricing-card {
    padding: 30px 18px;
    border-radius: var(--radius-lg);
  }

  .pricing-popular-badge {
    font-size: 0.68rem;
    padding: 4px 12px;
  }

  .pricing-features-list {
    gap: 11px;
  }

  .p-item {
    font-size: 0.88rem;
  }

  .trust-box {
    padding: 26px 18px;
    border-radius: var(--radius-lg);
  }

  .cta-card {
    padding: 36px 16px;
    border-radius: var(--radius-lg);
  }

  .deftform-card-wrapper {
    padding: 12px 6px;
    border-radius: var(--radius-lg);
    min-height: 340px;
  }
}