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

:root {
  --color-primary: #0a332d;
  --color-primary-light: #0f4a40;
  --color-accent: #00ff7d;
  --color-accent-muted: #00d16f;
  --color-accent-dark: #007855;
  --color-surface: #f7faf9;
  --color-surface-elevated: #ffffff;
  --color-text: #1a2e2a;
  --color-text-muted: #5a6e6a;
  --color-border: #d8e4e0;
  --shadow-sm: 0 1px 3px rgba(10, 51, 45, 0.08);
  --shadow-md: 0 8px 30px rgba(10, 51, 45, 0.12);
  --shadow-lg: 0 20px 60px rgba(10, 51, 45, 0.18);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --max-width: 1120px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.6;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app main {
  flex: 1;
}

.section {
  padding: 96px 24px;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin: 0 0 16px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0;
  line-height: 1.7;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(0, 255, 125, 0.35);
}

.btn-primary:hover {
  background: #33ff96;
  box-shadow: 0 6px 20px rgba(0, 255, 125, 0.45);
}

.btn-secondary {
  background: transparent;
  color: var(--color-surface-elevated);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.55);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 24px;
  transition: background 0.2s ease, box-shadow 0.2s ease, padding 0.2s ease;
}

.header--scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: 12px 24px;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-logo img {
  height: 36px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.header-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.15s ease;
}

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

.header-cta {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.header-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
}

.header-menu-btn span {
  display: block;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  background: linear-gradient(165deg, var(--color-primary) 0%, #051f1b 55%, #021412 100%);
  color: var(--color-surface-elevated);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}

.hero-glow--1 {
  width: 500px;
  height: 500px;
  top: -120px;
  right: -80px;
  background: var(--color-accent);
}

.hero-glow--2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  left: -100px;
  background: var(--color-accent-dark);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 20%, transparent 80%);
}

.hero-inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 100px;
  background: rgba(0, 255, 125, 0.12);
  border: 1px solid rgba(0, 255, 125, 0.25);
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 24px;
  letter-spacing: -0.02em;
}

.hero-highlight {
  color: var(--color-accent);
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  margin: 0 0 36px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin: 0;
}

.hero-stats div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stats dt {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0;
}

.hero-stats dd {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.65);
  margin: 0;
}

.hero-visual {
  position: relative;
  min-height: 420px;
}

.hero-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
}

.hero-card--main {
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 20px;
}

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

.hero-card-chart {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  height: 140px;
  margin-bottom: 20px;
}

.hero-bar {
  flex: 1;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px 4px 0 0;
  min-height: 20px;
}

.hero-bar--accent {
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-dark));
}

.hero-card-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-card-metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
}

.hero-card-metric-label {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
}

.hero-card--float {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  font-size: 0.8125rem;
  box-shadow: var(--shadow-md);
  animation: float 4s ease-in-out infinite;
}

.hero-card--float strong {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 2px;
}

.hero-card--float p {
  margin: 0;
  color: rgba(255, 255, 255, 0.55);
}

.hero-card--top {
  top: 0;
  right: -16px;
}

.hero-card--bottom {
  bottom: 24px;
  left: -24px;
  animation-delay: 2s;
}

.hero-float-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(0, 255, 125, 0.15);
  color: var(--color-accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.hero-float-icon--green {
  background: rgba(0, 209, 111, 0.2);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Features */
.features {
  background: var(--color-surface-elevated);
}

.features .section-subtitle {
  margin-bottom: 56px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 28px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(0, 255, 125, 0.4);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(0, 255, 125, 0.12);
  font-size: 1.375rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 10px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin: 0;
  line-height: 1.65;
}

/* Platform */
.platform-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.platform-list {
  list-style: none;
  margin: 40px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.platform-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 20px;
  border-left: 3px solid var(--color-accent);
}

.platform-list strong {
  font-size: 1rem;
  color: var(--color-primary);
}

.platform-list span {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.platform-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  background: var(--color-primary);
  color: var(--color-surface-elevated);
  box-shadow: var(--shadow-lg);
}

.platform-card-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.platform-pill {
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.6);
}

.platform-pill--active {
  background: rgba(0, 255, 125, 0.15);
  color: var(--color-accent);
  border: 1px solid rgba(0, 255, 125, 0.3);
}

.platform-card-body {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.platform-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
}

.platform-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.platform-stat-value--accent {
  color: var(--color-accent);
}

.platform-stat-label {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-surface-elevated);
  text-align: center;
}

.cta-inner {
  max-width: 720px;
}

.cta-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  margin: 0 0 16px;
  line-height: 1.2;
}

.cta-description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.72);
  margin: 0 0 32px;
  line-height: 1.7;
}

.cta-btn {
  font-size: 1rem;
}

/* Footer */
.footer {
  background: #051f1b;
  padding: 40px 24px;
  color: rgba(255, 255, 255, 0.65);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-logo img {
  height: 32px;
  width: auto;
  opacity: 0.9;
}

.footer-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.15s ease;
}

.footer-linkedin:hover {
  color: var(--color-accent);
}

.footer-copy {
  margin: 0;
  font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 960px) {
  .hero-inner,
  .platform-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-visual {
    min-height: 360px;
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
  }

  .hero-card--top {
    right: 0;
  }

  .hero-card--bottom {
    left: 0;
  }

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

  .platform-card-body {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-menu-btn {
    display: flex;
  }

  .header-nav {
    position: fixed;
    inset: 0;
    top: 68px;
    flex-direction: column;
    justify-content: flex-start;
    gap: 32px;
    padding: 32px 24px;
    background: var(--color-surface-elevated);
    transform: translateX(100%);
    transition: transform 0.25s ease;
  }

  .header-nav--open {
    transform: translateX(0);
  }

  .header-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    width: 100%;
  }

  .header-nav a {
    font-size: 1.125rem;
    color: var(--color-primary);
  }

  .header-cta {
    width: 100%;
  }
}

@media (max-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero {
    padding-top: 100px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }
}