/* ── Reset & Base ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  color: #1a1a2e;
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

/* ── Container ── */
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ── Typography ── */
h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; line-height: 1.2; text-align: center; margin-bottom: 12px; }
h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 8px; }
.section-sub { text-align: center; color: #555; max-width: 540px; margin: 0 auto 48px; font-size: 1.05rem; }
.highlight { color: #4f46e5; }

/* ── Buttons ── */
.btn {
  display: inline-block; padding: 14px 32px; border-radius: 8px;
  font-weight: 600; font-size: 1rem; cursor: pointer;
  background: #4f46e5; color: #fff; border: 2px solid #4f46e5;
  transition: all 0.2s;
}
.btn:hover { background: #4338ca; border-color: #4338ca; transform: translateY(-1px); }
.btn-outline { background: transparent; color: #4f46e5; }
.btn-outline:hover { background: #4f46e5; color: #fff; }
.btn-sm { padding: 8px 20px; font-size: 0.9rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-full { width: 100%; text-align: center; }

/* ── Nav ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid #eee; padding: 16px 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.5rem; font-weight: 800; color: #1a1a2e; }
.logo span { color: #4f46e5; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 0.95rem; font-weight: 500; color: #555; transition: color 0.2s; }
.nav-links a:hover { color: #4f46e5; }
.mobile-menu { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.mobile-menu span { display: block; width: 24px; height: 2px; background: #1a1a2e; transition: 0.3s; }

/* ── Hero ── */
.hero { padding: 140px 0 80px; background: linear-gradient(135deg, #f8f9ff 0%, #eef0ff 100%); }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-sub { font-size: 1.15rem; color: #555; margin: 20px 0 32px; max-width: 480px; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-result { font-size: 1.05rem; font-weight: 600; color: #4f46e5; margin-bottom: 24px; }
.hero-proof { margin-top: 24px; font-size: 0.9rem; color: #888; font-weight: 500; }

/* Phone mockup */
.phone-mockup {
  background: #1a1a2e; border-radius: 32px; padding: 16px;
  max-width: 340px; margin: 0 auto; box-shadow: 0 40px 80px rgba(79,70,229,0.15);
}
.phone-screen { background: #fff; border-radius: 20px; padding: 20px; min-height: 380px; display: flex; flex-direction: column; gap: 12px; }
.chat-bubble { padding: 12px 16px; border-radius: 16px; max-width: 85%; }
.chat-bubble.incoming { background: #f3f4f6; align-self: flex-start; }
.chat-bubble.aria { background: #eef0ff; align-self: flex-end; }
.chat-name { display: block; font-size: 0.75rem; font-weight: 600; color: #4f46e5; margin-bottom: 4px; }
.chat-bubble.incoming .chat-name { color: #888; }
.chat-text { font-size: 0.9rem; color: #333; line-height: 1.4; }

/* ── Problem / Stats ── */
.problem { padding: 64px 0; background: #1a1a2e; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; text-align: center; }
.stat-card { padding: 24px; }
.stat-num { display: block; font-size: 2.8rem; font-weight: 800; color: #4f46e5; }
.stat-label { color: #ccc; font-size: 1rem; margin-top: 8px; display: block; }

/* ── How It Works ── */
.how-it-works { padding: 96px 0; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.step-card { text-align: center; padding: 32px 24px; }
.step-num {
  width: 56px; height: 56px; border-radius: 50%; background: #4f46e5; color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; font-weight: 700; margin: 0 auto 20px;
}
.step-card p { color: #555; font-size: 0.95rem; }

/* ── Features ── */
.features { padding: 96px 0; background: #f8f9ff; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: #fff; padding: 32px; border-radius: 16px;
  border: 1px solid #eee; transition: box-shadow 0.2s, transform 0.2s;
}
.feature-card:hover { box-shadow: 0 8px 30px rgba(79,70,229,0.08); transform: translateY(-3px); }
.feature-icon { font-size: 2rem; margin-bottom: 12px; display: block; }
.feature-card p { color: #555; font-size: 0.95rem; }

/* ── Testimonials ── */
.testimonials { padding: 96px 0; }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 48px; }
.testimonial-card {
  background: #f8f9ff; padding: 32px; border-radius: 16px;
  border: 1px solid #eee; display: flex; flex-direction: column; justify-content: space-between;
}
.quote { font-size: 1rem; color: #333; font-style: italic; line-height: 1.6; margin-bottom: 20px; }
.testimonial-author strong { display: block; color: #1a1a2e; }
.testimonial-author span { font-size: 0.85rem; color: #888; }

/* ── Pricing ── */
.pricing { padding: 96px 0; background: #f8f9ff; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.price-card {
  background: #fff; padding: 40px 32px; border-radius: 16px;
  border: 2px solid #eee; text-align: center; position: relative;
  transition: box-shadow 0.2s;
}
.price-card.featured { border-color: #4f46e5; box-shadow: 0 12px 40px rgba(79,70,229,0.12); transform: scale(1.03); }
.badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: #4f46e5; color: #fff; padding: 4px 16px; border-radius: 20px;
  font-size: 0.8rem; font-weight: 600;
}
.price { font-size: 3rem; font-weight: 800; color: #1a1a2e; margin: 16px 0 4px; }
.price span { font-size: 1rem; font-weight: 500; color: #888; }
.price-label { font-size: 0.85rem; color: #888; font-weight: 500; margin-bottom: 8px; }
.price-monthly { font-size: 1.15rem; font-weight: 600; color: #4f46e5; margin-bottom: 24px; }
.price-monthly span { font-size: 0.85rem; font-weight: 500; color: #888; }
.price-card ul { margin-bottom: 32px; }
.price-card li { padding: 8px 0; color: #555; font-size: 0.95rem; border-bottom: 1px solid #f3f4f6; }
.price-card li:last-child { border: none; }

.pricing-note { text-align: center; margin-top: 40px; padding: 24px 32px; background: #fff; border-radius: 12px; border: 1px solid #eee; }
.pricing-note p { color: #555; font-size: 0.95rem; line-height: 1.6; }

/* ── Contact ── */
.contact { padding: 96px 0; background: #1a1a2e; }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.contact-text h2 { text-align: left; color: #fff; }
.contact-text p { color: #aaa; font-size: 1.1rem; margin-top: 12px; }
.contact-form { display: flex; flex-direction: column; gap: 14px; }
.contact-form input {
  padding: 14px 18px; border-radius: 8px; border: 2px solid #333;
  background: #262640; color: #fff; font-size: 1rem; font-family: inherit;
  transition: border-color 0.2s;
}
.contact-form input::placeholder { color: #777; }
.contact-form input:focus { outline: none; border-color: #4f46e5; }
.form-note { font-size: 0.85rem; color: #777; text-align: center; }

/* ── Footer ── */
.footer { padding: 64px 0 24px; background: #111127; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: #777; margin-top: 12px; font-size: 0.9rem; }
.footer-links h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; }
.footer-links a { display: block; color: #888; font-size: 0.9rem; margin-bottom: 10px; transition: color 0.2s; }
.footer-links a:hover { color: #4f46e5; }
.footer-bottom { border-top: 1px solid #222; padding-top: 20px; }
.footer-bottom p { color: #555; font-size: 0.85rem; text-align: center; }

/* ── Mobile ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 64px; left: 0; right: 0; background: #fff;
    padding: 24px; gap: 16px; border-bottom: 1px solid #eee;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .mobile-menu { display: flex; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .phone-mockup { max-width: 300px; }
  .stats-grid { grid-template-columns: 1fr; gap: 16px; }
  .steps-grid { grid-template-columns: 1fr; gap: 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .price-card.featured { transform: none; }
  .contact-inner { grid-template-columns: 1fr; }
  .contact-text h2 { text-align: center; }
  .contact-text p { text-align: center; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
}