/* ===========================================================
   VARIABLES
   =========================================================== */
:root {
  --primary: #7c9fee;
  --primary-hover: #4f7ce0;
  --text-dark: #1f2937;
  --text-light: #6c757d;
  --background: linear-gradient(180deg, #eef4f2 0%, #f8f9fa 100%);
  --container-bg: #ffffff;
  --focus-ring: 0 0 0 3px rgba(139,167,233,0.35);
  --focus-color: var(--primary);
  --focus-radius: 12px;
}

/* ===========================================================
   DOCUMENT
   =========================================================== */
   
body {
  margin: 0;
  padding: 2rem 0;
  display: block;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  background: var(--background);
  line-height: 1.6;
  background-attachment: fixed;
  background-repeat: no-repeat;
  background-size: cover;
  color: var(--text-dark);
}

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

a:hover { 
  color: var(--primary-hover); 
  text-decoration: underline; 
}

h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

h2 {
  font-size: 1.4rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

p, li {
  font-size: 1rem;
  color: var(--text-dark);
}

ul {
  padding-left: 1.2rem;
}

footer p {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-top: 2rem;
}

/* Container --------------------------------------------------*/
   
.container {
  max-width: 820px;
  background: var(--container-bg);
  padding: 2rem;
  border-radius: 24px;
  border: 1px solid #e6e6e6;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

/* Focus appearance -------------------------------------------*/

a,
button,
input,
textarea,
select,
.form-control,
.btn,
[tabindex]:not([tabindex="-1"]) {
  outline: none;
}   
   
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
.form-control:focus-visible,
.btn:focus-visible,
[tabindex]:focus-visible {
  outline: none;
  border-color: var(--focus-color);
  box-shadow: var(--focus-ring);
  border-radius: var(--focus-radius);
}

/* ===========================================================
   RESPONSIVE
   =========================================================== */
   
@media (max-width: 768px) {
  body { padding: 0; }
  .container { border-radius: 0; box-shadow: none; border: none; padding: 1.5rem; }
}