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

/* BODY */
body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%);
  color: #0f172a;
}

/* NAVBAR */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 8%;
  background: white;
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
}

.logo {
  font-weight: 700;
  font-size: 22px;
}

.cta {
  background: #111827;
  color: white;
  padding: 10px 18px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
}

/* HERO */
.hero.premium {
  padding: 120px 20px;
  text-align: center;
}

.hero-inner {
  max-width: 800px;
  margin: auto;
}

.hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
}

.hero p {
  font-size: 18px;
  color: #475569;
  margin-top: 20px;
}

.hero-buttons {
  margin-top: 30px;
}

.secondary-btn {
  margin-left: 12px;
  padding: 14px 28px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  text-decoration: none;
  color: #111827;
}

.trust-line {
  margin-top: 15px;
  font-size: 14px;
  color: #64748b;
}

/* SECTIONS */
section {
  max-width: 1000px;
  margin: auto;
  padding: 80px 20px;
}

h2 {
  font-size: 28px;
  margin-bottom: 20px;
  text-align: center;
}

.case-study {
  background: #f8fafc;
}

.case-card {
  background: white;
  padding: 30px;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  max-width: 700px;
  margin: 40px auto;
}

ul {
  margin-top: 20px;
  padding-left: 20px;
}
.not-for {
  background: #111827;
  color: white;
  text-align: center;
}

.not-for ul {
  max-width: 600px;
  margin: auto;
  margin-top: 20px;
}
body.dark {
  background: #0f172a;
  color: #e2e8f0;
}

body.dark section {
  background: #0f172a;
}

body.dark .card,
body.dark .case-card {
  background: #1e293b;
  border: 1px solid #334155;
}


/* PROBLEMS */
.problems ul {
  max-width: 600px;
  margin: 20px auto;
  color: #374151;
}

/* SERVICES */
.cards {
  display: flex;
  gap: 24px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.card {
  flex: 1;
  min-width: 260px;
  background: white;
  padding: 30px;
  border-radius: 12px;
  border: 1px solid #eee;
  transition: all 0.2s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.05);
}

.card h3 {
  margin-bottom: 10px;
}

/* PROCESS */
.steps {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
  gap: 10px;
}

.steps div {
  flex: 1;
  padding: 20px;
  background: #eef2ff;
  border-radius: 8px;
  text-align: center;
  font-weight: 500;
}

/* MODEL */
.model ul {
  max-width: 400px;
  margin: 20px auto;
}

/* NETWORK */
.network ul {
  max-width: 500px;
  margin: 20px auto;
}

/* ABOUT */
.about p {
  max-width: 600px;
  margin: auto;
  text-align: center;
  color: #374151;
}

/* CONTACT */
.contact {
  text-align: center;
}

.contact a {
  color: #2563eb;
  text-decoration: none;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 30px;
  background: white;
  border-top: 1px solid #eee;
  color: #6b7280;
}

/* MOBILE */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 32px;
  }

  .steps {
    flex-direction: column;
  }
}