/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  line-height: 1.6;
  color: #e2e8f0;
  background: #0f0f23;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hidden {
  display: none !important;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 1.5rem;
  background: rgba(15, 15, 35, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-brand {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.btn-signin {
  padding: 0.5rem 1.25rem;
  background: transparent;
  border: 1px solid rgba(0, 212, 255, 0.4);
  color: #00d4ff;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-signin:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: rgba(0, 212, 255, 0.6);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  color: #a1a1aa;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: #00d4ff;
}

/* Hero Section */
.hero {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: #0f0f23;
  color: white;
  padding: 7rem 1.5rem 3rem; /* top padding for fixed header */
  position: relative;
  overflow: hidden;
}

/* Subtle gradient overlay */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 255, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 50%, rgba(124, 58, 237, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

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

.badge {
  display: inline-block;
  background: rgba(0, 212, 255, 0.15);
  border: 1px solid rgba(0, 212, 255, 0.3);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
  color: #00d4ff;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.tagline {
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  font-weight: 500;
  color: #f1f5f9;
  margin-bottom: 1rem;
}

.description {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  color: #a1a1aa;
}

/* Signup Form */
.signup-form {
  display: flex;
  gap: 0.5rem;
  max-width: 450px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.signup-form input[type="email"] {
  flex: 1;
  min-width: 200px;
  padding: 1rem 1.25rem;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  font-size: 1rem;
  color: #f4f4f5;
  outline: none;
  transition: all 0.2s ease;
}

.signup-form input[type="email"]:focus {
  border-color: rgba(0, 212, 255, 0.5);
  background: rgba(0, 0, 0, 0.4);
}

.signup-form input[type="email"]::placeholder {
  color: #71717a;
}

.signup-form button {
  padding: 1rem 1.5rem;
  background: rgba(0, 212, 255, 0.2);
  border: 1px solid rgba(0, 212, 255, 0.3);
  color: #00d4ff;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.signup-form button:hover {
  background: rgba(0, 212, 255, 0.3);
  border-color: rgba(0, 212, 255, 0.5);
  transform: translateY(-1px);
}

.signup-note {
  font-size: 0.85rem;
  color: #71717a;
  margin-top: 1rem;
}

.signup-success {
  background: rgba(0, 212, 255, 0.15);
  border: 1px solid rgba(0, 212, 255, 0.3);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin-top: 1rem;
  color: #00d4ff;
}

.signup-success .checkmark {
  display: inline-block;
  margin-right: 0.5rem;
  font-weight: bold;
}

.signup-error {
  color: #f87171;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

/* Section base styles */
section {
  padding: 5rem 1.5rem;
}

section h2 {
  font-size: clamp(1.8rem, 5vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: #f1f5f9;
  text-align: center;
}

.section-intro {
  font-size: 1.1rem;
  color: #a1a1aa;
  margin-bottom: 2rem;
  text-align: center;
}

/* Problem Section */
.problem {
  background: #0a0a1a;
}

.tools-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.tool-card {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(12px);
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.95rem;
  color: #cbd5e1;
  transition: all 0.2s ease;
}

.tool-card:hover {
  border-color: rgba(0, 212, 255, 0.3);
  background: rgba(26, 26, 46, 0.8);
}

.tool-icon {
  font-size: 1.2rem;
}

.problem-statement {
  font-size: 1.1rem;
  color: #f1f5f9;
  font-weight: 500;
  margin-bottom: 2rem;
  text-align: center;
}

.pain-points {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.pain-point {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #a1a1aa;
}

.pain-icon {
  font-size: 1.2rem;
}

/* Solution Section */
.solution {
  background: #0f0f23;
}

.benefits {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
}

.benefit {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.1rem;
  color: #cbd5e1;
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(12px);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  min-width: 320px;
}

.benefit-icon {
  color: #00d4ff;
  font-weight: bold;
  font-size: 1.2rem;
}

.solution-outcome {
  font-size: 1.3rem;
  font-weight: 600;
  background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  margin-top: 1.5rem;
  text-align: center;
}

/* Video Showcase */
.showcase {
  background: #0a0a1a;
  padding: 3rem 1.5rem;
}

.video-container {
  max-width: 900px;
  margin: 0 auto;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(0, 212, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.video-container video {
  width: 100%;
  display: block;
  background: #000;
}

.video-credit {
  max-width: 900px;
  margin: 0.5rem auto 0;
  text-align: right;
  font-size: 0.75rem;
  color: #52525b;
}

.video-credit a {
  color: #71717a;
  text-decoration: none;
}

.video-credit a:hover {
  color: #a1a1aa;
}

/* How It Works */
.how-it-works {
  background: #0f0f23;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.step {
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(12px);
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.3s ease;
}

.step:hover {
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.1);
  transform: translateY(-4px);
}

.step-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.step h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #f1f5f9;
  text-align: center;
}

.step p {
  font-size: 0.95rem;
  color: #a1a1aa;
  text-align: center;
}

/* Features */
.features {
  background: #0a0a1a;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.feature {
  padding: 1.5rem;
  text-align: center;
  background: rgba(26, 26, 46, 0.4);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.3s ease;
}

.feature:hover {
  border-color: rgba(124, 58, 237, 0.3);
  background: rgba(26, 26, 46, 0.6);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.feature h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #f1f5f9;
}

.feature p {
  font-size: 0.95rem;
  color: #a1a1aa;
}

/* Audience */
.audience {
  background: #0f0f23;
}

.audience-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
}

.audience-item {
  background: rgba(26, 26, 46, 0.6);
  backdrop-filter: blur(12px);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-size: 0.95rem;
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.2s ease;
}

.audience-item:hover {
  border-color: rgba(0, 212, 255, 0.3);
}

.audience-tagline {
  font-size: 1.1rem;
  color: #a1a1aa;
  font-style: italic;
  text-align: center;
}

/* Final CTA */
.final-cta {
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
  border-top: 1px solid rgba(0, 212, 255, 0.2);
  border-bottom: 1px solid rgba(124, 58, 237, 0.2);
}

.final-cta h2 {
  background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.final-cta p {
  font-size: 1.1rem;
  color: #a1a1aa;
  margin-bottom: 2rem;
  text-align: center;
}

.final-cta .signup-success {
  display: inline-block;
}

/* Footer */
footer {
  padding: 3rem 1.5rem;
  background: #050510;
  text-align: center;
}

.footer-brand {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.footer-tagline {
  color: #71717a;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: #52525b;
}

/* Responsive */
@media (max-width: 600px) {
  .signup-form {
    flex-direction: column;
  }

  .signup-form input[type="email"],
  .signup-form button {
    width: 100%;
  }

  .pain-points {
    flex-direction: column;
    align-items: center;
  }

  .benefit {
    min-width: auto;
    width: 100%;
  }
}