/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: #0f172a;
  color: #ffffff;
  line-height: 1.6;
}

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

/* NAVBAR */
.nav {
  width: 100%;
  padding: 20px 40px;
  background: #0f172a;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-inner {
  max-width: 1100px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav nav {
  display: flex;
  gap: 25px;
  font-size: 15px;
  align-items: center;
}

.nav nav a:hover {
  color: #38bdf8;
}

.nav-cta {
  background: #38bdf8;
  color: #0f172a !important;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: bold;
}

.nav-cta:hover {
  background: #7dd3fc;
}

.logo {
  height: 55px;
}

.navbar {
  width: 100%;
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #0f172a;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar img {
  height: 40px;
}

.nav-links {
  display: flex;
  gap: 25px;
  font-size: 15px;
}

.nav-links a:hover {
  color: #38bdf8;
}

/* HERO */
.hero {
  text-align: center;
  padding: 100px 20px 80px;
  max-width: 900px;
  margin: auto;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
  line-height: 1.2;
}

.hero p {
  font-size: 18px;
  color: #cbd5e1;
  margin-bottom: 30px;
}

.cta-button {
  display: inline-block;
  padding: 14px 28px;
  background: #38bdf8;
  color: #0f172a;
  border-radius: 8px;
  font-weight: bold;
  transition: 0.2s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(56,189,248,0.3);
}

.cta-btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: bold;
  transition: 0.2s ease;
}

.cta-btn.primary {
  background: #38bdf8;
  color: #0f172a;
}

.cta-btn.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(56,189,248,0.3);
}

.subtext {
  font-size: 14px;
  color: #94a3b8;
}

/* PREVIEW SECTION */
.preview {
  padding: 80px 20px;
  background: #111827;
}

.preview-inner {
  max-width: 1100px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
  flex-wrap: wrap;
}

.preview-text {
  flex: 1;
  min-width: 280px;
}

.preview-text h2 {
  font-size: 32px;
  margin-bottom: 15px;
}

.preview-text p {
  color: #cbd5e1;
}

.phone-mockup {
  flex: 1;
  min-width: 280px;
  background: #1f2937;
  padding: 25px;
  border-radius: 30px;
  max-width: 320px;
  margin: auto;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.chat-bubble {
  padding: 10px 14px;
  border-radius: 18px;
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.4;
  max-width: 85%;
}

.left {
  background: #374151;
}

.right {
  background: #22c55e;
  color: #0f172a;
  margin-left: auto;
  text-align: right;
}

/* FEATURES */
.features {
  padding: 80px 20px;
  max-width: 1100px;
  margin: auto;
  text-align: center;
}

.features h2 {
  font-size: 34px;
  margin-bottom: 50px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
}

.feature-card {
  background: #1e293b;
  padding: 30px;
  border-radius: 12px;
  transition: 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  background: #263244;
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.feature-card p {
  font-size: 14px;
  color: #cbd5e1;
}

/* HOW IT WORKS */
.how-it-works {
  padding: 80px 20px;
  background: #111827;
  text-align: center;
}

.how-it-works h2 {
  font-size: 34px;
  margin-bottom: 50px;
}

.steps {
  max-width: 800px;
  margin: auto;
  display: flex;
  justify-content: space-around;
  gap: 30px;
  flex-wrap: wrap;
}

.step {
  flex: 1;
  min-width: 200px;
  text-align: center;
}

.step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: #38bdf8;
  color: #0f172a;
  border-radius: 50%;
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 15px;
}

.step p {
  font-size: 16px;
  color: #cbd5e1;
}

/* PRICING */
.pricing {
  padding: 80px 20px;
  max-width: 900px;
  margin: auto;
  text-align: center;
}

.pricing h2 {
  font-size: 34px;
  margin-bottom: 20px;
}

.pricing .price {
  font-size: 48px;
  font-weight: bold;
  color: #38bdf8;
  margin-bottom: 15px;
}

.pricing p {
  font-size: 18px;
  color: #cbd5e1;
  margin-bottom: 30px;
}

/* FOOTER */
.footer {
  text-align: center;
  padding: 40px 20px;
  background: #0b1120;
  color: #94a3b8;
  font-size: 14px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 34px;
  }

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

  .preview-text {
    text-align: center;
  }

  .navbar,
  .nav-inner {
    flex-direction: column;
    gap: 10px;
  }

  .nav-links,
  .nav nav {
    flex-wrap: wrap;
    justify-content: center;
  }

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

  .pricing .price {
    font-size: 36px;
  }
}