:root {
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-300: #93c5fd;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --blue-900: #1e3a8a;
  --blue-950: #172554;

  --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;

  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--gray-900);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

img, svg {
  display: block;
}

/* ── Container ── */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  line-height: 1;
}

.btn-primary {
  background: var(--blue-600);
  color: #fff;
}
.btn-primary:hover {
  background: var(--blue-700);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--blue-600);
  border: 1.5px solid var(--blue-200);
}
.btn-outline:hover {
  background: var(--blue-50);
  border-color: var(--blue-400);
}

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--blue-100);
  padding: 0.875rem 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--blue-800);
  letter-spacing: -0.025em;
  flex-shrink: 0;
}

.navbar-brand .brand-icon {
  color: var(--blue-500);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.navbar-nav a {
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  border-radius: var(--radius);
  transition: color 0.15s, background 0.15s;
}

.navbar-nav a:hover {
  color: var(--blue-600);
  background: var(--blue-50);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-700);
  padding: 0.25rem;
  border-radius: var(--radius);
}
.mobile-toggle:hover {
  background: var(--gray-100);
}

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, var(--blue-950) 0%, var(--blue-800) 55%, var(--blue-700) 100%);
  color: #fff;
  padding: 5rem 0 6rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 75% 50%, rgba(96, 165, 250, 0.15) 0%, transparent 65%),
    radial-gradient(ellipse 40% 60% at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  line-height: 0;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--blue-200);
  letter-spacing: 0.01em;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.08;
  margin-bottom: 1.25rem;
}

.hero-title .accent {
  color: var(--blue-300);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 460px;
  line-height: 1.7;
  margin-bottom: 2.25rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.cta-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #fff;
  color: var(--blue-800);
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-weight: 700;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}
.cta-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.cta-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.2s;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  cursor: pointer;
}
.cta-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.45);
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.mockup-shell {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-2xl);
  padding: 1.25rem;
  width: 100%;
  max-width: 490px;
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(4px);
}

/* ── Stats ── */
.stats {
  background: var(--blue-50);
  border-bottom: 1px solid var(--blue-100);
  padding: 3rem 0;
}

.stats .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.stat-card {
  text-align: center;
  padding: 1rem;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--blue-700);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.375rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-500);
  font-weight: 500;
}

/* ── Section Header ── */
.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--blue-600);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--gray-900);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-sub {
  font-size: 1.05rem;
  color: var(--gray-500);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Features ── */
.features {
  padding: 5rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feat-card {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
}

.feat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-400));
  opacity: 0;
  transition: opacity 0.25s;
}

.feat-card:hover {
  border-color: var(--blue-200);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.feat-card:hover::after {
  opacity: 1;
}

.feat-icon {
  width: 2.75rem;
  height: 2.75rem;
  background: var(--blue-50);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-600);
  margin-bottom: 1.125rem;
  transition: background 0.25s, color 0.25s;
  flex-shrink: 0;
}

.feat-card:hover .feat-icon {
  background: var(--blue-600);
  color: #fff;
}

.feat-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.feat-desc {
  font-size: 0.875rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ── How it works ── */
.how {
  background: var(--blue-950);
  color: #fff;
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.how::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 50% 100%, rgba(59, 130, 246, 0.12) 0%, transparent 65%);
  pointer-events: none;
}

.how .section-title { color: #fff; }
.how .section-sub { color: rgba(255,255,255,0.6); }
.how .section-label { color: var(--blue-300); }

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
  z-index: 1;
}

.steps::before {
  content: '';
  position: absolute;
  top: 2rem;
  left: calc(16.66% + 1rem);
  right: calc(16.66% + 1rem);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-700), transparent);
}

.step {
  text-align: center;
}

.step-num {
  width: 4rem;
  height: 4rem;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-500));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 auto 1.5rem;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.15);
}

.step-icon {
  color: #fff;
}

.step-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.625rem;
}

.step-desc {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.65;
}

/* ── Benefits ── */
.benefits {
  padding: 5rem 0;
  background: var(--gray-50);
}

.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.benefits-content .section-header {
  text-align: left;
  margin-bottom: 0;
}

.benefits-content .section-sub {
  margin: 0;
  margin-top: 0.75rem;
}

.benefits-list {
  list-style: none;
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
}

.benefit-check {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--blue-100);
  color: var(--blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.benefit-item p {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.55;
}

.benefit-item strong {
  color: var(--gray-800);
  font-weight: 600;
}

.benefits-visual {
  background: #fff;
  border-radius: var(--radius-2xl);
  padding: 1.5rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--gray-200);
}

/* ── CTA section ── */
.cta-section {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--blue-800) 0%, var(--blue-600) 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 80% at 50% 50%, rgba(255,255,255,0.05) 0%, transparent 65%);
  pointer-events: none;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
}

.cta-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.78);
  margin-bottom: 2.25rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.cta-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Footer ── */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 3rem 0 1.5rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-brand .brand-icon {
  color: var(--blue-400);
}

.footer-desc {
  font-size: 0.875rem;
  line-height: 1.65;
}

.footer-heading {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #fff;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  font-size: 0.875rem;
  transition: color 0.15s;
}

.footer-links a:hover {
  color: var(--blue-400);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-copy {
  font-size: 0.8rem;
}

.footer-made {
  font-size: 0.8rem;
  color: var(--blue-400);
}

/* ── Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-up.in {
  opacity: 1;
  transform: translateY(0);
}

/* stagger via delay set in JS */

/* ── Responsive ── */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .navbar-nav { display: none; }
  .navbar-actions .btn-outline { display: none; }
  .mobile-toggle { display: block; }

  .navbar-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--blue-100);
    padding: 1rem 1.5rem;
    gap: 0.25rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    z-index: 99;
  }

  .hero {
    padding: 3.5rem 0 5rem;
  }

  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2.5rem;
  }

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

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

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

  .mockup-shell {
    max-width: 360px;
  }

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

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

  .steps {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .steps::before { display: none; }

  .benefits-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .benefits-visual { display: none; }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

@media (max-width: 480px) {
  .stats .container {
    grid-template-columns: 1fr;
  }
}