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

:root {
  --primary: #1976D2;
  --primary-dark: #1256a0;
  --accent: #26A69A;
  --text: #1a1a2e;
  --text-light: #555;
  --bg: #f8fafc;
  --white: #fff;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(25,118,210,0.10);
  --radius: 12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  height: 64px;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { color: var(--text-light); font-size: 0.95rem; font-weight: 500; }
.nav-links a:hover { color: var(--primary); text-decoration: none; }

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  border: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--white); text-decoration: none; }

/* ── Hero ── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 6rem 5% 5rem;
  background: linear-gradient(160deg, #e8f4fd 0%, #f0fbf9 100%);
}

.hero-badge {
  display: inline-block;
  background: #e3f2fd;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  max-width: 700px;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.hero h1 span { color: var(--primary); }

.hero p {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 560px;
  margin-bottom: 2.5rem;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }

.hero-note {
  margin-top: 1.5rem;
  font-size: 0.82rem;
  color: #888;
}

/* ── Features ── */
.features {
  padding: 5rem 5%;
  background: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--text-light);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  transition: box-shadow 0.2s, transform 0.2s;
}

.feature-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ── How it works ── */
.how {
  padding: 5rem 5%;
  background: linear-gradient(160deg, #f0fbf9 0%, #e8f4fd 100%);
}

.steps {
  display: flex;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

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

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.step p { font-size: 0.9rem; color: var(--text-light); }

/* ── Pricing ── */
.pricing {
  padding: 5rem 5%;
  background: var(--white);
  text-align: center;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 2rem auto 0;
  align-items: start;
}

.pricing-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.plan-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  padding: 0.25rem 0.85rem;
  border-radius: 999px;
  white-space: nowrap;
  text-transform: uppercase;
}

.plan-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.pricing-card .price {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary);
  margin: 0.4rem 0 0.2rem;
}

.pricing-card .enterprise-price {
  font-size: 1.4rem;
}

.pricing-card .price-sub {
  font-size: 0.82rem;
  color: var(--text-light);
  margin-bottom: 1.25rem;
}

.pricing-list {
  list-style: none;
  text-align: left;
  margin-bottom: 1.5rem;
  flex: 1;
}

.pricing-list li {
  padding: 0.35rem 0;
  font-size: 0.9rem;
  color: var(--text-light);
}

.pricing-list li::before { content: "✓  "; color: var(--accent); font-weight: 700; }

/* ── CTA ── */
.cta {
  padding: 5rem 5%;
  background: var(--primary);
  text-align: center;
  color: var(--white);
}

.cta h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta p {
  font-size: 1.05rem;
  opacity: 0.85;
  max-width: 500px;
  margin: 0 auto 2rem;
}

.btn-white {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
}
.btn-white:hover { background: #e8f4fd; text-decoration: none; }

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #25D366;
  color: var(--white);
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.2s;
}
.whatsapp-btn:hover { background: #1da851; text-decoration: none; }

/* ── Footer ── */
footer {
  background: var(--text);
  color: #aaa;
  text-align: center;
  padding: 2rem 5%;
  font-size: 0.85rem;
}

footer a { color: #ccc; }
footer a:hover { color: var(--white); }

/* ── Responsive ── */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 4rem 5% 3rem; }
  .steps { flex-direction: column; align-items: center; }
}