:root{
  --bg: #f7fcf9;            /* soft mint paper */
  --text: #0f172a;          /* slate-900 */
  --muted: #475569;         /* slate-600 */
  --border: #e5e7eb;        /* gray-200 */
  --shadow: 0 10px 30px rgba(0,0,0,.08);
  --maxw: 72ch;

  /* Accents */
  --accent-luigi: #2e8b57;  /* Luigi green */
  --accent-mario: #ef4444;  /* Mario red */
  --ink: #ffffff;
}

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

html { scroll-behavior: smooth; }

body{
  margin: 0;
  font: 16px/1.65 system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}

/* accessibility */
.skip-link{
  position: absolute; left: -9999px; top: -9999px;
}
.skip-link:focus{
  left: 1rem; top: 1rem; background: var(--accent-luigi); color: var(--ink);
  padding: .5rem .75rem; border-radius: .5rem; outline: 2px solid #000;
}

/* page header */
.site-header{
  padding: clamp(24px, 5vw, 48px) 20px 12px;
  text-align: center;
}
.title{
  margin: 0;
  font-size: clamp(1.5rem, 3vw + .5rem, 2.25rem);
}
.subtitle{
  margin: .25rem 0 0 0;
  color: var(--muted);
}

/* hero art */
.hero{
  margin: 0 auto;
  padding: 0 20px;
  max-width: 1100px;
}
.hero img{
  width: 100%;
  height: auto;
  display: block;
  border-radius: 14px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.hero figcaption{
  margin-top: .6rem;
  color: var(--muted);
  font-size: .95rem;
  text-align: center;
}

/* character sections */
.character{ margin: 2rem auto 3rem; }

.character-header{
  text-align: center;
  padding: 8px 20px 0;
}
.character-title{
  margin: 0;
  font-size: clamp(1.25rem, 2vw + .5rem, 1.75rem);
}
.character-subtitle{
  margin: .25rem 0 0;
  color: var(--muted);
}

/* per-character accents */
.character-header--luigi .character-title{ color: var(--accent-luigi); }
.character-header--mario .character-title{ color: var(--accent-mario); }

/* body copy */
.copy{
  margin: 1rem auto 0;
  padding: 0 20px;
  max-width: var(--maxw);
}
.copy p{ margin: 0 0 1rem 0; }

/* buttons */
.button{
  display: inline-block;
  background: var(--accent-luigi);
  color: var(--ink);
  text-decoration: none;
  padding: .6rem 1rem;
  border-radius: .6rem;
  box-shadow: var(--shadow);
  transition: transform .15s ease, box-shadow .15s ease, background-color .15s ease;
}
.button--mario{ background: var(--accent-mario); }

.button:hover{
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(0,0,0,.12);
}
.button:active{ transform: translateY(0); }
.button:focus-visible{
  outline: 3px solid currentColor;
  outline-offset: 3px;
}

/* footer */
.site-footer{
  padding: 24px;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

/* motion preference */
@media (prefers-reduced-motion: reduce){
  html { scroll-behavior: auto; }
  .button { transition: none; }
}