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

:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #e0e7ff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --accent: #b8860b;
  --accent-dark: #d4a017;
  --white: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-700);
  line-height: 1.6;
  background: var(--white);
}

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

img {
  max-width: 100%;
}

ul {
  list-style: none;
}

/* ===== Layout ===== */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-sm {
  max-width: 720px;
}

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--gray-50);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--gray-500);
  max-width: 560px;
  margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 0.9375rem;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}

.btn-sm {
  font-size: 0.8125rem;
  padding: 6px 16px;
}

.btn-lg {
  font-size: 1rem;
  padding: 14px 32px;
}

.btn-block {
  display: block;
  width: 100%;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: background 0.3s, box-shadow 0.3s;
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.nav-logo-icon {
  width: 28px;
  height: 28px;
}

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

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--gray-900);
}

.nav-cta {
  margin-left: 16px;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px 24px 16px;
  border-top: 1px solid var(--gray-100);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  padding: 10px 0;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-600);
}

.mobile-menu a:hover {
  color: var(--gray-900);
}

/* ===== Hero ===== */
.hero {
  padding: 140px 0 96px;
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 1.125rem;
  color: var(--gray-500);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Card mockup */
.hero-visual {
  display: flex;
  justify-content: center;
}

.card-mockup {
  perspective: 800px;
}

.card-mockup-inner {
  width: 340px;
  aspect-ratio: 1.586 / 1;
  background: linear-gradient(135deg, #4f46e5, #7c3aed);
  border-radius: 16px;
  padding: 24px;
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 20px 40px rgba(79, 70, 229, 0.3), 0 8px 16px rgba(0, 0, 0, 0.1);
  transform: rotateY(-5deg) rotateX(3deg);
  transition: transform 0.3s;
  position: relative;
  overflow: hidden;
}

.card-mockup-inner::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.card-mockup-inner::after {
  content: "";
  position: absolute;
  top: 20px;
  right: -20px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-mockup:hover .card-mockup-inner {
  transform: rotateY(0deg) rotateX(0deg);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  position: relative;
  z-index: 1;
}

.card-issuer {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.card-chip {
  position: relative;
  z-index: 1;
}

.card-number {
  font-family: "Courier New", Courier, monospace;
  font-size: 1.125rem;
  letter-spacing: 0.15em;
  position: relative;
  z-index: 1;
}

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  position: relative;
  z-index: 1;
}

.card-bottom-right {
  text-align: right;
}

.card-label {
  font-size: 0.5625rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.6;
  margin-bottom: 2px;
}

.card-value {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ===== Features ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ===== How It Works (Steps) ===== */
.steps-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.steps-row-connector {
  display: flex;
  justify-content: center;
  color: var(--gray-300);
  padding: 16px 0;
}

.steps-row-connector svg {
  width: 24px;
  height: 24px;
}

.step-card {
  flex: 1;
  max-width: 260px;
  text-align: center;
  position: relative;
  padding: 0 12px;
}

.step-number {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step-icon {
  width: 56px;
  height: 56px;
  background: var(--primary-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--primary);
}

.step-icon svg {
  width: 28px;
  height: 28px;
}

.step-icon-secure {
  background: #dcfce7;
  color: #16a34a;
}

.step-card-secure h3 {
  color: #16a34a;
}

.step-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.875rem;
  color: var(--gray-500);
  line-height: 1.6;
}

.step-connector {
  flex-shrink: 0;
  width: 32px;
  color: var(--gray-300);
  padding-top: 66px;
}

.step-connector svg {
  width: 20px;
  height: 20px;
}

.trust-banner {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-top: 48px;
  padding: 24px 32px;
  background: var(--white);
  border: 2px solid #dcfce7;
  border-radius: var(--radius);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.trust-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  color: #16a34a;
  margin-top: 2px;
}

.trust-banner p {
  font-size: 0.9375rem;
  color: var(--gray-600);
  line-height: 1.6;
}

.trust-banner strong {
  color: var(--gray-900);
}

@media (max-width: 768px) {
  .steps-row {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .step-card {
    max-width: 320px;
  }

  .step-connector {
    padding-top: 0;
    width: 100%;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .step-connector svg {
    transform: rotate(90deg);
  }

  .steps-row-connector {
    display: flex;
    padding: 0;
    height: 32px;
    align-items: center;
  }

  .steps-row-connector svg {
    width: 20px;
    height: 20px;
  }

  .trust-banner {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 24px;
  }
}

/* ===== Pricing ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 720px;
  margin: 0 auto;
}

.pricing-grid-3 {
  grid-template-columns: repeat(3, 1fr);
  max-width: 960px;
}

.pricing-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  position: relative;
  transition: box-shadow 0.2s;
}

.pricing-card:hover {
  box-shadow: var(--shadow-md);
}

.pricing-card-featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-tier {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--gray-900);
  line-height: 1.2;
}

.pricing-original {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--gray-400);
  text-decoration: line-through;
  margin-right: 4px;
}

.pricing-period {
  font-size: 0.875rem;
  color: var(--gray-400);
  margin-bottom: 24px;
}

.pricing-features {
  text-align: left;
  margin-bottom: 32px;
}

.pricing-features li {
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-100);
  padding-left: 24px;
  position: relative;
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

.pricing-subinfo {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin-bottom: 24px;
}

.pricing-save {
  color: var(--primary);
  font-weight: 600;
}

.pricing-tagline {
  font-size: 0.9375rem;
  color: var(--gray-500);
  font-style: italic;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gray-100);
}

.pricing-includes {
  text-align: center;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--gray-200);
}

.pricing-includes-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 16px;
}

.pricing-includes-grid {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.pricing-includes-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--gray-500);
}

.pricing-includes-item svg {
  width: 18px;
  height: 18px;
  color: var(--primary);
  flex-shrink: 0;
}

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.testimonial-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px;
}

.testimonial-quote {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--gray-900);
}

.testimonial-role {
  font-size: 0.8125rem;
  color: var(--gray-400);
}

/* ===== FAQ ===== */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-item {
  border-bottom: 1px solid var(--gray-200);
}

.faq-item:first-child {
  border-top: 1px solid var(--gray-200);
}

.faq-question {
  width: 100%;
  padding: 20px 0;
  background: none;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-family: inherit;
  line-height: 1.5;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  font-size: 1.25rem;
  font-weight: 300;
  transition: transform 0.2s;
  flex-shrink: 0;
  margin-left: 16px;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding-bottom: 20px;
  font-size: 0.9375rem;
  color: var(--gray-500);
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

/* ===== About ===== */
.about-content p {
  font-size: 1.0625rem;
  color: var(--gray-600);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* ===== Waitlist CTA ===== */
.section-cta {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
  color: var(--white);
}

.section-cta h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--white);
}

.section-cta p {
  font-size: 1.125rem;
  opacity: 0.85;
  margin-bottom: 32px;
}

.waitlist-form {
  display: flex;
  gap: 12px;
  max-width: 440px;
  margin: 0 auto;
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

.waitlist-input {
  flex: 1;
  padding: 14px 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.waitlist-input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.waitlist-input:focus {
  border-color: rgba(255, 255, 255, 0.7);
}

.section-cta .btn-primary {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
  flex-shrink: 0;
}

.section-cta .btn-primary:hover {
  background: var(--gray-100);
  border-color: var(--gray-100);
}

.waitlist-note {
  font-size: 0.8125rem;
  opacity: 0.6;
  margin-top: 12px;
}

.waitlist-message {
  margin-top: 16px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 500;
}

.waitlist-success {
  color: var(--white);
  background: rgba(255, 255, 255, 0.2);
}

.waitlist-error {
  color: #fecaca;
  background: rgba(239, 68, 68, 0.25);
}

.section-cta .btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ===== Footer ===== */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.footer-logo-icon {
  width: 28px;
  height: 28px;
}

.footer-logo .accent {
  color: var(--accent-dark);
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--gray-400);
}

.footer-links h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gray-300);
  margin-bottom: 16px;
}

.footer-links a {
  display: block;
  font-size: 0.875rem;
  color: var(--gray-400);
  padding: 4px 0;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: 24px;
  text-align: center;
  font-size: 0.8125rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    padding: 120px 0 64px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 2.25rem;
  }

  .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .card-mockup-inner {
    width: 280px;
    padding: 20px;
    transform: none;
  }

  .card-mockup:hover .card-mockup-inner {
    transform: none;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .pricing-grid,
  .pricing-grid-3 {
    grid-template-columns: 1fr;
  }

  .pricing-includes-grid {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .section {
    padding: 64px 0;
  }

  .section-header h2 {
    font-size: 1.625rem;
  }

  .waitlist-form {
    flex-direction: column;
  }

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

@media (min-width: 769px) and (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid .testimonial-card:last-child {
    grid-column: span 2;
    max-width: 50%;
    margin: 0 auto;
  }
}