:root {
  --bg-main: #0a0f1d;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(31, 41, 55, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.35);
  --accent-emerald: #10b981;
  --accent-purple: #8b5cf6;
  --accent-amber: #f59e0b;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 25%, rgba(139, 92, 246, 0.1) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
}

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

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(10, 15, 29, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-badge {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.logo-text h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-text span {
  font-size: 0.75rem;
  color: var(--accent-emerald);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-link:hover {
  color: #fff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn {
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.25s ease;
  border: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

.btn-emerald {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-emerald:hover {
  background: linear-gradient(135deg, #047857, #059669);
  transform: translateY(-2px);
}

/* HERO */
.hero {
  padding: 8.5rem 2rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.3);
  border-radius: 9999px;
  font-size: 0.85rem;
  color: #60a5fa;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h2 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 1.5rem;
}

.hero h2 .highlight {
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #34d399);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 2.5rem;
}

.hero-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.badge-item span.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
}

/* SECTION HEADERS */
.section-title {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-title h3 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 0.75rem;
}

.section-title p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* FEATURES GRID */
.features-section {
  max-width: 1200px;
  margin: 0 auto 6rem;
  padding: 0 2rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.75rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.2rem;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-5px);
  box-shadow: var(--shadow-card);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  background: rgba(37, 99, 235, 0.12);
  color: #60a5fa;
  border: 1px solid rgba(37, 99, 235, 0.25);
}

.feature-card h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* LIVE TAXPAYER CHECKER */
.taxpayer-section {
  max-width: 860px;
  margin: 0 auto 6rem;
  padding: 0 2rem;
}

.taxpayer-box {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
}

.taxpayer-form {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.taxpayer-input {
  flex: 1;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--border-color);
  padding: 0.9rem 1.2rem;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.taxpayer-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.taxpayer-result {
  margin-top: 1.5rem;
  padding: 1.2rem;
  border-radius: var(--radius-sm);
  display: none;
}

/* PRICING */
.pricing-section {
  max-width: 1200px;
  margin: 0 auto 6rem;
  padding: 0 2rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s;
}

.pricing-card.popular {
  border-color: #3b82f6;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.12), rgba(17, 24, 39, 0.85));
  transform: scale(1.03);
}

.popular-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 9999px;
  text-transform: uppercase;
}

.pricing-header h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pricing-amount {
  font-size: 2.2rem;
  font-weight: 800;
  margin: 1.2rem 0;
  color: #fff;
}

.pricing-amount span {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

.pricing-features {
  list-style: none;
  margin-bottom: 2rem;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

/* MODALS */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-content {
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-close:hover {
  color: #fff;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.95rem;
  outline: none;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .hero h2 {
    font-size: 2.3rem;
  }
  .nav-links {
    display: none;
  }
  .taxpayer-form {
    flex-direction: column;
  }
}

/* --- BRAND LOGO ENHANCEMENTS --- */
.logo-badge-img {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), filter 0.3s ease;
}

.logo-badge-img:hover {
  transform: scale(1.08) rotate(-2deg);
}

.brand-logo-img {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 4px 16px rgba(6, 182, 212, 0.45));
}

.brand-title {
  font-size: 1.3rem !important;
  font-weight: 800 !important;
  letter-spacing: -0.5px !important;
  color: #ffffff !important;
  display: flex;
  align-items: center;
}

.brand-gradient {
  background: linear-gradient(135deg, #38bdf8 0%, #6366f1 70%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-left: 2px;
}

.brand-status {
  font-size: 0.75rem;
  color: #10b981;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}
/* ===================================================
   MOBILE NAVIGATION & FULL RESPONSIVE ENHANCEMENTS
   =================================================== */

.navbar-wrapper {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.mobile-toggle-btn {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  width: 44px;
  height: 44px;
  padding: 10px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  transition: all 0.3s ease;
}

.mobile-toggle-btn .bar {
  width: 22px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-toggle-btn.active {
  background: rgba(14, 165, 233, 0.15);
  border-color: rgba(56, 189, 248, 0.4);
}

.mobile-toggle-btn.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  background: #38bdf8;
}

.mobile-toggle-btn.active .bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.mobile-toggle-btn.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  background: #38bdf8;
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background: rgba(10, 15, 29, 0.98);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.25rem 1.25rem 1.75rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
  flex-direction: column;
  gap: 1rem;
  animation: mobileSlideDown 0.25s ease-out forwards;
}

@keyframes mobileSlideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.mobile-nav-link {
  display: block;
  color: #cbd5e1;
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.mobile-nav-link:hover, .mobile-nav-link:active {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.08);
}

.mobile-nav-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

/* --- RESPONSIVE BREAKPOINTS --- */
@media (max-width: 920px) {
  .nav-links, .nav-actions {
    display: none !important;
  }
  .mobile-toggle-btn {
    display: flex;
  }
  .mobile-menu.open {
    display: flex;
  }
}

@media (max-width: 768px) {
  html, body {
    overflow-x: hidden;
    width: 100%;
  }

  .navbar {
    padding: 0.85rem 1.25rem;
  }

  .hero {
    padding-top: calc(75px + 2.25rem) !important;
    padding-bottom: 2.5rem !important;
    padding-left: 1.25rem !important;
    padding-right: 1.25rem !important;
  }

  .hero h2 {
    font-size: 2.1rem !important;
    line-height: 1.25;
    letter-spacing: -0.5px;
  }

  .hero p {
    font-size: 0.95rem;
    line-height: 1.55;
    margin-bottom: 2rem;
  }

  .hero-pill {
    font-size: 0.78rem;
    padding: 6px 14px;
    white-space: normal;
    text-align: center;
    line-height: 1.35;
    margin-bottom: 1.25rem;
  }

  .hero-actions {
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
    max-width: 320px;
    margin: 0 auto 2.5rem;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 0.85rem 1.5rem !important;
    font-size: 1rem;
  }

  .hero-badges {
    gap: 8px;
    justify-content: center;
  }

  .badge-item {
    font-size: 0.75rem;
    padding: 6px 10px;
  }

  .features-section, 
  .taxpayer-section, 
  .pricing-section, 
  .integrators-section {
    padding: 3rem 1.25rem;
  }

  .section-title {
    margin-bottom: 2.25rem;
  }

  .section-title h3 {
    font-size: 1.7rem;
    line-height: 1.25;
  }

  .section-title p {
    font-size: 0.88rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .feature-card {
    padding: 1.5rem 1.25rem;
  }

  .taxpayer-box {
    padding: 1.5rem 1.25rem;
  }

  .taxpayer-form {
    flex-direction: column;
    gap: 0.75rem;
  }

  .taxpayer-form input {
    width: 100%;
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
  }

  .taxpayer-form button {
    width: 100%;
    justify-content: center;
    padding: 0.85rem 1.5rem;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 400px;
    margin: 0 auto;
  }

  .pricing-card {
    padding: 1.75rem 1.5rem;
  }

  .integrator-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    max-width: 450px;
    margin: 0 auto;
  }

  footer {
    padding: 2.5rem 1.25rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .hero h2 {
    font-size: 1.8rem !important;
  }

  .brand-title {
    font-size: 1.15rem !important;
  }

  .logo-container span {
    font-size: 1.15rem !important;
  }
}
@media (max-width: 480px) {
  .hero {
    padding-top: calc(70px + 2rem) !important;
  }
}