:root {
  --surface: #faf9f5;
  --surface-low: #f4f4f0;
  --surface-white: #ffffff;
  --primary: #003527;
  --primary-container: #064e3b;
  --primary-hover: #00503d;
  --primary-light: #e8f0ec;
  --on-primary: #ffffff;
  --on-surface: #1b1c1a;
  --on-surface-muted: #7a7d79;
  --radius-xl: 48px;
  --radius-lg: 32px;
  --radius-md: 24px;
  --shadow-sm: 0 4px 20px rgba(27, 28, 26, 0.04);
  --shadow-md: 0 10px 40px rgba(27, 28, 26, 0.05);
  --shadow-lg: 0 20px 60px rgba(27, 28, 26, 0.08);
  --font: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 300ms ease-in-out;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container--narrow {
  max-width: 900px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--on-surface);
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 strong {
  font-weight: 600;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 1.75rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
}

p {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--on-surface-muted);
}

.text-lg {
  font-size: 1.125rem;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  transition: var(--transition);
}

.nav--scrolled {
  background: rgba(250, 249, 245, 0.6);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface-muted);
  transition: color var(--transition);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--font);
}

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

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 2rem;
  background: var(--primary);
  color: var(--on-primary);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  transition: background var(--transition);
  border: none;
  cursor: pointer;
  font-family: var(--font);
}

.nav__cta:hover {
  background: var(--primary-hover);
}

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

.nav__toggle span {
  width: 24px;
  height: 2px;
  background: var(--on-surface);
  border-radius: 2px;
  transition: var(--transition);
}

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

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

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

/* Sections */
.section {
  padding: 6rem 0;
}

.section--dark {
  background: var(--primary);
  color: var(--on-primary);
}

.section--dark h2,
.section--dark h3,
.section--dark p {
  color: var(--on-primary);
}

.section--dark p {
  opacity: 0.8;
}

.section--low {
  background: var(--surface-low);
}

.section__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 1rem;
}

.section--dark .section__label {
  color: var(--on-primary);
  opacity: 0.7;
}

.section__title {
  margin-bottom: 1rem;
}

.section__desc {
  font-size: 1.125rem;
  max-width: 600px;
}

/* Phone Frame */
.phone-frame {
  display: inline-flex;
  padding: 10px;
  background: #121212;
  border-radius: calc(var(--radius-lg) + 12px);
  box-shadow: var(--shadow-lg);
  max-width: 300px;
  width: 100%;
}

.phone-frame img {
  border-radius: var(--radius-md);
  width: 100%;
  height: auto;
  display: block;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem 6rem;
  background: var(--surface);
  overflow: hidden;
}

.hero__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 5rem;
  width: 100%;
}

.hero__content {
  flex: 1;
  min-width: 0;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: var(--primary-light);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-container);
  margin-bottom: 1.5rem;
}

.hero__title {
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: 1.125rem;
  margin-bottom: 2.5rem;
  max-width: 480px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font);
  transition: transform var(--transition), background var(--transition), color var(--transition);
  border: none;
  cursor: pointer;
}

.btn:active {
  transform: scale(0.98);
}

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

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

.btn--secondary {
  background: var(--surface-low);
  color: var(--on-surface);
}

.btn--secondary:hover {
  background: #e8e7e3;
}

.hero__media {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Features */
.features {
  display: flex;
  flex-direction: column;
  gap: 6rem;
}

.feature {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.feature--reverse {
  flex-direction: row-reverse;
}

.feature__content {
  flex: 1;
  min-width: 0;
}

.feature__number {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.feature__title {
  margin-bottom: 1rem;
}

.feature__desc {
  margin-bottom: 1.5rem;
}

.feature__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.feature__list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--on-surface-muted);
}

.feature__list-icon {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.feature__list-icon svg {
  width: 10px;
  height: 10px;
  fill: var(--primary);
}

.feature__media {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 360px;
}

.feature__image {
  width: 100%;
  height: auto;
  display: block;
}

/* Quick Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
  align-items: start;
}

.gallery-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.gallery-item .phone-frame {
  max-width: 240px;
  margin-bottom: 1rem;
}

.gallery-item__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface-muted);
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  text-align: center;
}

.stat__number {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 300;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.section--dark .stat__number {
  color: var(--on-primary);
}

.stat__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--on-surface-muted);
}

.section--dark .stat__label {
  color: var(--on-primary);
  opacity: 0.7;
}

/* CTA */
.cta-content {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-content h2 {
  margin-bottom: 1rem;
}

.cta-content p {
  margin-bottom: 2.5rem;
}

/* Footer */
.footer {
  background: var(--on-surface);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 2rem 2rem;
}

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 3rem;
  flex-wrap: wrap;
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer__desc {
  font-size: 0.875rem;
  opacity: 0.6;
  line-height: 1.6;
}

.footer__links {
  display: flex;
  gap: 3rem;
}

.footer__col h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 1rem;
}

.footer__col a {
  display: block;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition);
  margin-bottom: 0.5rem;
}

.footer__col a:hover {
  color: #fff;
}

.footer__bottom {
  max-width: 1200px;
  margin: 3rem auto 0;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8125rem;
  opacity: 0.5;
}

/* Scroll Animations */
.animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 700ms ease-out, transform 700ms ease-out;
}

.animate--visible {
  opacity: 1;
  transform: translateY(0);
}

.animate--delay-1 { transition-delay: 100ms; }
.animate--delay-2 { transition-delay: 200ms; }
.animate--delay-3 { transition-delay: 300ms; }

/* Responsive */
@media (max-width: 1000px) {
  .hero__inner {
    gap: 3rem;
  }

  .feature {
    gap: 3rem;
  }

  .feature__media {
    width: 300px;
  }
}

@media (max-width: 840px) {
  .hero__inner {
    flex-direction: column;
    gap: 3rem;
  }

  .hero__content {
    text-align: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .feature {
    flex-direction: column;
    gap: 2.5rem;
  }

  .feature--reverse {
    flex-direction: column;
  }

  .feature__content {
    text-align: center;
  }

  .feature__list-item {
    justify-content: center;
  }

  .feature__media {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

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

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

  .footer__inner {
    flex-direction: column;
    gap: 3rem;
  }

  .footer__links {
    width: 100%;
    justify-content: space-between;
  }

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

@media (max-width: 640px) {
  .nav__links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(250, 249, 245, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
  }

  .nav__links--open {
    display: flex;
  }

  .nav__link {
    font-size: 1.25rem;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__cta {
    display: none;
  }

  .nav__links .nav__cta {
    display: inline-flex;
  }

  .section {
    padding: 4rem 0;
  }

  .hero {
    padding: 6rem 1.5rem 3rem;
  }

  .container {
    padding: 0 1.5rem;
  }

  .features {
    gap: 4rem;
  }

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

  .footer {
    padding: 3rem 1.5rem 1.5rem;
  }

  .footer__links {
    flex-direction: column;
    gap: 2rem;
  }
}