:root{
  /* Dark theme colors */
  --bg-dark:#1a1a1a;           /* Main dark background */
  --bg-darker:#0f0f0f;         /* Even darker for contrast */
  --card-dark:#262626;          /* Dark grey for cards */
  --card-darker:#1f1f1f;       /* Darker cards */
  
  /* Text colors */
  --text-primary:#ffffff;       /* White text */
  --text-secondary:#b3b3b3;    /* Light grey text */
  --text-muted:#808080;        /* Muted grey text */
  
  /* Header colors */
  --header-bg:#000000;          /* Black header */
  --header-text:#ffffff;        /* White header text */
  
  /* Accent colors (keep LUTES blue for brand consistency) */
  --primary:#303f9f;           /* LUTES dark blue */
  --accent:#c5cae9;             /* LUTES light blue */
  
  /* Legacy colors for compatibility */
  --ink:#ffffff;                /* White for dark theme */
  --muted:#b3b3b3;              /* Light grey for muted text */
  --bg:#1a1a1a;                /* Dark background */
  --card:#262626;               /* Dark card background */
  
  /* Utilities */
  --radius:24px;
  --shadow-sm:0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg:0 12px 24px rgba(0,0,0,0.5);
  
  /* Colorful accent colors for feature cards */
  --color-lime:#a8e063;         /* Lime green */
  --color-blue:#4a90e2;        /* Royal blue */
  --color-magenta:#e74c3c;      /* Magenta/red */
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Helvetica,Arial,sans-serif;
  color:var(--text-primary);
  background:var(--bg-dark);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

.container{
  max-width:1200px;
  margin:auto;
  padding:0 24px;
}

header{
  position:sticky;
  top:0;
  background:var(--header-bg);
  border-bottom:1px solid rgba(255,255,255,0.1);
  z-index:100;
  box-shadow:var(--shadow-md);
}

header .row{
  display:flex;
  align-items:center;
  justify-content:center;
  padding:20px 24px;
  position:relative;
}

header .row a{
  position:absolute;
  right:24px;
}

.logo{
  height:40px;
  width:auto;
  object-fit:contain;
}

.badge{
  display:inline-block;
  background:var(--accent);
  color:var(--primary);
  padding:8px 16px;
  border-radius:999px;
  font-weight:700;
  font-size:12px;
  letter-spacing:0.3px;
  text-transform:uppercase;
  margin-bottom:16px;
}

.grid{display:grid;gap:32px;grid-template-columns:1fr}

.card{
  background:var(--card-dark);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:var(--radius);
  padding:40px;
  box-shadow:var(--shadow-md);
  transition:all 0.3s ease;
}

.card:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-2px);
  border-color:rgba(255,255,255,0.12);
}

/* Colorful feature cards */
.card-feature-lime{
  background:var(--color-lime);
  color:#000000;
}

.card-feature-blue{
  background:var(--color-blue);
  color:#ffffff;
}

.card-feature-magenta{
  background:var(--color-magenta);
  color:#ffffff;
}

h1{
  font-size:clamp(36px,5vw,56px);
  line-height:1.1;
  margin:0 0 20px;
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--text-primary);
}

h2{
  font-size:clamp(22px,3vw,28px);
  margin:0 0 16px;
  font-weight:700;
  letter-spacing:-0.01em;
  color:var(--text-primary);
}

p{
  margin:16px 0;
  font-size:18px;
  line-height:1.7;
  color:var(--text-secondary);
}

.muted{color:var(--text-muted)}

.actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:32px;
  justify-content:center;
}

.btn{
  appearance:none;
  border:0;
  border-radius:16px;
  padding:16px 28px;
  font-weight:700;
  font-size:16px;
  cursor:pointer;
  transition:all 0.2s ease;
  letter-spacing:0.2px;
}

.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 20px rgba(48,63,159,0.5);
}

.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(48,63,159,0.6);
}

.btn-primary:active{transform:scale(0.98)}

.btn-secondary{
  background:var(--card-dark);
  border:2px solid rgba(255,255,255,0.2);
  color:var(--text-primary);
}

.btn-secondary:hover{
  border-color:var(--primary);
  background:var(--card-darker);
}

.hint{
  font-size:14px;
  color:var(--text-muted);
  margin-top:16px;
  line-height:1.6;
}


ol.steps{
  display:grid;
  gap:20px;
  grid-template-columns:1fr;
  list-style:none;
  counter-reset:step-counter;
  margin:24px 0;
  padding:0;
}


.step{
  background:var(--card-dark);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:20px;
  padding:24px;
  padding-right:70px;
  position:relative;
  counter-increment:step-counter;
  color:var(--text-secondary);
}

.step::before{
  content:counter(step-counter);
  position:absolute;
  top:20px;
  right:20px;
  width:36px;
  height:36px;
  background:var(--primary);
  color:#fff;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:16px;
}

.step strong{
  color:var(--text-primary);
  font-weight:700;
}

footer{
  border-top:1px solid rgba(255,255,255,0.1);
  background:var(--bg-darker);
  margin-top:80px;
  color:var(--text-secondary);
}

footer .row{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  padding:40px 24px;
}

a{
  color:var(--text-primary);
  text-decoration:none;
  font-weight:600;
  transition:opacity 0.2s ease;
}

a:hover{
  opacity:0.8;
  color:var(--accent);
}

/* Hero section enhancements */
.hero-section{
  padding:64px 0 48px;
  color:var(--text-primary);
}

main.container{
  padding:48px 24px;
}

/* Colorful card text overrides */
.card-feature-lime h2,
.card-feature-lime p,
.card-feature-lime .muted,
.card-feature-lime strong{
  color:#000000;
}

.card-feature-blue h2,
.card-feature-blue p,
.card-feature-blue .muted,
.card-feature-blue strong,
.card-feature-magenta h2,
.card-feature-magenta p,
.card-feature-magenta .muted,
.card-feature-magenta strong{
  color:#ffffff;
}

/* Link styling within cards */
.card a{
  color:var(--primary);
  text-decoration:underline;
}

.card-feature-lime a{
  color:#000000;
  font-weight:700;
}

.card-feature-blue a,
.card-feature-magenta a{
  color:#ffffff;
  font-weight:700;
}