:root {
  --primary: #006654;
  --primary-dark: #004d3f;
  --primary-light: #0d826c;
  --primary-subtle: #e6f4f1;
  --accent: #06cf78;
  --accent-soft: #d2f8e6;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 40px rgba(0, 102, 84, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-sans: 'Plus Jakarta Sans', 'Hind Siliguri', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Nav */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.25s ease;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

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

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  object-fit: contain;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.brand-tagline {
  font-size: 11.5px;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  font-size: 14.5px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 102, 84, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 18px rgba(0, 102, 84, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border-color: var(--border-color);
}

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

.btn-pill {
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13.5px;
}

/* Lang Switcher */
.lang-toggle {
  display: flex;
  align-items: center;
  background: #f1f5f9;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 3px;
}

.lang-btn {
  border: none;
  background: transparent;
  padding: 6px 12px;
  font-size: 12.5px;
  font-weight: 700;
  border-radius: 999px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn.active {
  background: #ffffff;
  color: var(--primary);
  box-shadow: 0 2px 5px rgba(0,0,0,0.06);
}

/* Hero Section */
.hero {
  padding: 72px 0 88px;
  background: radial-gradient(circle at 50% 0%, #edf7f4 0%, #f8fafc 70%);
  border-bottom: 1px solid var(--border-color);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 56px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--primary-subtle);
  border: 1px solid rgba(0, 102, 84, 0.15);
  border-radius: 999px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 20px;
}

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

.hero-title {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.22;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-title span {
  color: var(--primary);
}

.hero-desc {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-subtle);
  font-weight: 600;
}

/* Phone Mockup Frame */
.hero-mockup {
  display: flex;
  justify-content: center;
  position: relative;
}

.phone-card {
  width: 310px;
  background: #0f172a;
  padding: 12px;
  border-radius: 44px;
  box-shadow: 0 25px 60px -15px rgba(0, 102, 84, 0.28), 0 0 0 1px rgba(255, 255, 255, 0.15) inset;
  position: relative;
  transition: transform 0.3s ease;
}

.phone-card:hover {
  transform: translateY(-6px);
}

.phone-screen {
  border-radius: 34px;
  overflow: hidden;
  background: #ffffff;
  aspect-ratio: 9 / 19.5;
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mockup-floating-badge {
  position: absolute;
  background: #ffffff;
  padding: 12px 18px;
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2;
}

.mockup-badge-top {
  top: 15%;
  left: -30px;
}

.mockup-badge-bottom {
  bottom: 12%;
  right: -25px;
}

.badge-icon-box {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.badge-info-title {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-main);
}

.badge-info-sub {
  font-size: 11px;
  color: var(--text-subtle);
}

/* Sections */
.section {
  padding: 88px 0;
  border-bottom: 1px solid var(--border-color);
}

.section-light {
  background: #ffffff;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: 34px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.28;
  margin-bottom: 16px;
  letter-spacing: -0.4px;
}

.section-subtitle {
  font-size: 16.5px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Feature Grid Cards */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all 0.25s ease;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-icon-box {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 22px;
}

.feature-card-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.35;
}

.feature-card-desc {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}

.feature-list {
  list-style: none;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border-light);
}

.feature-list-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-subtle);
  font-weight: 600;
  margin-bottom: 6px;
}

.feature-list-item::before {
  content: "✓";
  color: var(--primary);
  font-weight: 800;
}

/* Interactive App Showcase Tabs */
.showcase-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-md);
}

.tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 40px;
}

.tab-btn {
  border: 1px solid var(--border-color);
  background: #f8fafc;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 999px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.tab-btn.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 102, 84, 0.22);
}

.showcase-panel {
  display: none;
}

.showcase-panel.active {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 56px;
  animation: fadeIn 0.3s ease-in-out;
}

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

.showcase-content {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.showcase-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
}

.showcase-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
}

.showcase-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.showcase-bullet {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

.bullet-check {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-subtle);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
  margin-top: 2px;
}

.showcase-mockup-wrapper {
  display: flex;
  justify-content: center;
}

.showcase-phone-card {
  width: 290px;
  background: #0f172a;
  padding: 10px;
  border-radius: 40px;
  box-shadow: var(--shadow-xl);
}

.showcase-phone-screen {
  border-radius: 30px;
  overflow: hidden;
  background: #ffffff;
  aspect-ratio: 9 / 19.5;
}

.showcase-phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Security & Assurance Cards */
.security-banner {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 44px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  box-shadow: var(--shadow-sm);
}

.security-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.security-icon {
  font-size: 28px;
}

.security-item-title {
  font-size: 16.5px;
  font-weight: 800;
  color: var(--text-main);
}

.security-item-desc {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
}

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

.faq-question {
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  border: none;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
}

.faq-chevron {
  transition: transform 0.2s ease;
  font-size: 18px;
  color: var(--text-subtle);
}

.faq-card.open .faq-chevron {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease-out;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
}

.faq-card.open .faq-answer {
  padding-bottom: 20px;
}

/* CTA Download Banner */
.cta-banner {
  background: linear-gradient(135deg, #004d3f 0%, #006654 100%);
  border-radius: var(--radius-xl);
  padding: 64px 48px;
  color: #ffffff;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.cta-title {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.25;
}

.cta-desc {
  font-size: 17px;
  opacity: 0.9;
  max-width: 580px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.btn-white {
  background: #ffffff;
  color: var(--primary-dark);
}

.btn-white:hover {
  background: #f1f5f9;
  transform: translateY(-2px);
}

/* Document Pages (Privacy, Terms, Delete Account) */
.doc-header {
  padding: 56px 0 40px;
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.doc-meta {
  display: flex;
  gap: 18px;
  font-size: 13.5px;
  color: var(--text-subtle);
  font-weight: 600;
  margin-top: 12px;
}

.doc-body {
  padding: 56px 0 88px;
  background: #ffffff;
}

.doc-content {
  font-size: 15.5px;
  line-height: 1.8;
  color: #334155;
}

.doc-content h2 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-main);
  margin: 44px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.doc-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin: 26px 0 10px;
}

.doc-content p {
  margin-bottom: 16px;
}

.doc-content ul {
  margin: 12px 0 20px 24px;
}

.doc-content li {
  margin-bottom: 8px;
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14.5px;
}

.doc-table th, .doc-table td {
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  text-align: left;
}

.doc-table th {
  background: #f8fafc;
  font-weight: 700;
  color: var(--text-main);
}

/* Interactive Deletion Form */
.deletion-box {
  background: var(--bg-page);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-top: 36px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: #ffffff;
  outline: none;
  transition: border-color 0.2s;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 84, 0.12);
}

.alert-success {
  background: var(--accent-soft);
  color: #065f46;
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 600;
  margin-top: 20px;
  display: none;
}

/* Footer */
.footer {
  background: #0f172a;
  color: #cbd5e1;
  padding: 72px 0 36px;
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-brand-title {
  font-size: 20px;
  font-weight: 800;
  color: #ffffff;
}

.footer-brand-desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: #94a3b8;
  max-width: 320px;
}

.footer-heading {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: #94a3b8;
  transition: color 0.2s;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: #64748b;
}

/* Mobile Responsiveness */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-main);
}

@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }
  .hero-desc {
    margin: 0 auto 32px;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }
  .showcase-panel.active {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .showcase-bullets {
    align-items: center;
  }
  .security-banner {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .security-banner {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  .hero-title {
    font-size: 34px;
  }
  .showcase-wrapper {
    padding: 20px;
  }
}