/* ====== Index/Home Page – Modern Theme ====== */

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

html, body {
  height: 100%;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: linear-gradient(150deg, #ddf0e7 0%, #e9f4ee 40%, #f0f9f4 100%);
  background-attachment: fixed;
  color: var(--kt-text);
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ====== Layout ====== */

header {
  padding: 0 var(--kt-gap-lg);
  background: var(--kt-white);
  color: var(--kt-text);
  text-align: center;
  font-weight: 700;
  box-shadow: 0 2px 12px rgba(61, 186, 127, 0.12);
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 2px solid var(--kt-green);
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1.5rem 1.75rem;
}

/* ====== Section ====== */

.section {
  width: 100%;
  max-width: 960px;
  background: var(--kt-white);
  border-radius: var(--kt-radius-lg);
  padding: 2.25rem;
  border: 1px solid var(--kt-border);
  box-shadow: var(--kt-shadow);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.25rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* ====== Image ====== */

.intro-img {
  width: 100%;
  max-width: 320px;
  justify-self: center;
  display: block;
  border-radius: var(--kt-radius-md);
  border: 1px solid var(--kt-border);
  background: var(--kt-white);
  padding: 1.1rem;
  box-shadow: var(--kt-shadow);
  position: relative;
  z-index: 1;
}

.intro-text {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  position: relative;
  z-index: 5;
}

.intro-text h2 {
  font-size: 1.8rem;
  margin-top: 0;
  font-weight: 700;
  color: var(--kt-text);
}

.intro-text p {
  font-size: 1rem;
  opacity: 0.9;
  color: var(--kt-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.start-btn {
  position: relative;
  z-index: 10;
}

/* ====== Button ====== */

.btn {
  margin-top: 1.4rem;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--kt-radius-sm);
  background: var(--kt-green);
  color: var(--kt-white);
  border: none;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(61, 186, 127, 0.35);
  transition: background var(--kt-transition), box-shadow var(--kt-transition), transform var(--kt-transition);
}

.btn:hover {
  background: var(--kt-green-dark);
  box-shadow: 0 4px 16px rgba(61, 186, 127, 0.45);
  transform: translateY(-2px);
}

/* ====== Footer ====== */

footer {
  text-align: center;
  padding: var(--kt-gap-md);
  font-size: 0.9rem;
  color: var(--kt-text-muted);
  background: var(--kt-white);
  border-top: 2px solid var(--kt-green);
}

footer a {
  color: var(--kt-green);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--kt-transition);
}

footer a:hover {
  color: var(--kt-green-dark);
}

/* ====== Responsive ====== */
@media (max-width: 768px) {
  .section {
    grid-template-columns: 1fr;
    padding: var(--kt-gap-md);
    gap: 1.5rem;
  }

  .intro-text h2 {
    font-size: 1.5rem;
  }

  main {
    padding: var(--kt-gap) var(--kt-gap-sm);
  }
}