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

:root {
  --text-primary: #000;
  --text-secondary: #404040;
  --text-muted: #737373;
  --bg-primary: #fff;
  --bg-card: #fff;
  --border-color: #e5e5e5;
  --accent: #c2410c;
  --accent-warm: #ea580c;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

/* Subtle accent glow */
.gradient-bg {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse 50% 30% at 50% 0%, rgba(234, 88, 12, 0.04), transparent);
  pointer-events: none;
  z-index: 0;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav-logo {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Hero Section */
.hero {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 2rem 4rem;
  position: relative;
  z-index: 1;
  min-height: 100vh;
}

.hero-content {
  text-align: center;
  max-width: 520px;
}

/* Logo - transparent, clean */
.logo-container {
  margin-bottom: 2rem;
}

.logo {
  width: 128px;
  height: 128px;
  transition: transform 0.3s ease;
}

.logo:hover {
  transform: scale(1.03);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.75rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 100px;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.badge-dot {
  width: 5px;
  height: 5px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Headings */
h1 {
  font-size: clamp(1.75rem, 5vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.tagline {
  font-size: clamp(1rem, 3vw, 1.1875rem);
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  font-weight: 400;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 1rem;
}

/* Form */
.signup-form {
  margin-bottom: 0;
}

.hidden {
  display: none;
}

.form-group {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  max-width: 400px;
  margin: 0 auto;
}

.form-group input[type="email"] {
  flex: 1;
  min-width: 240px;
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  font-family: inherit;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.form-group input[type="email"]:focus {
  outline: none;
  border-color: var(--text-primary);
}

.form-group input[type="email"]::placeholder {
  color: var(--text-muted);
}

.form-group button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  color: #fff;
  background: var(--text-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.form-group button:hover {
  background: var(--accent);
}

.form-group button:active {
  transform: scale(0.98);
}

.form-hint {
  margin-top: 1rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* Features */
.features {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 3rem;
}

.feature {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 400;
}

.feature-dot {
  width: 3px;
  height: 3px;
  background: var(--accent-warm);
  border-radius: 50%;
}

/* Footer */
footer {
  padding: 2rem;
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-color);
  background: var(--bg-primary);
}

.footer-content {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeIn 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

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

/* Responsive */
@media (max-width: 640px) {
  .nav {
    padding: 1rem 1.25rem;
  }

  .hero {
    padding: 5rem 1.25rem 3rem;
  }

  .hero-content {
    max-width: 100%;
  }

  .logo {
    width: 100px;
    height: 100px;
  }

  h1 {
    font-size: 1.75rem;
    line-height: 1.2;
  }

  .tagline {
    font-size: 0.9375rem;
    padding: 0;
  }

  .form-group {
    flex-direction: column;
    align-items: stretch;
    padding: 0 0.5rem;
  }

  .form-group input[type="email"] {
    min-width: 100%;
    padding: 1rem;
    font-size: 1rem;
  }

  .form-group button {
    padding: 1rem;
    font-size: 1rem;
  }

  .features {
    flex-direction: column;
    gap: 0.5rem;
  }

  .feature-dot {
    display: none;
  }

  .feature {
    font-size: 0.8125rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}

/* Selection color */
::selection {
  background: rgba(194, 65, 12, 0.15);
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--text-primary);
  outline-offset: 2px;
}