:root {
  /* Colors */
  --bg-primary: #101213;
  --bg-secondary: #333739;
  --bg-tertiary: #7a3434;
  
  --text-primary: #eefffc;
  --text-secondary: #a8c9c8;
  --text-muted: #6d829c;
  
  --accent-primary: #ff8888;
  --accent-secondary: #ffde5c;
  --accent-tertiary: #f881af;
  
  /* Spacing scale */
  --sp-xs: 0.25rem;
  --sp-sm: 0.5rem;
  --sp-md: 1rem;
  --sp-lg: 1.5rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4rem;
  
  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

img {
  max-width: 100%;
  margin: var(--sp-sm);
}

body {
  font-family: "Sen", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  font-weight: 400;
}

/* bg decoration */
@media (min-width: 1024px) {
  body::before {
    content: '';
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background-image: var(--page-bg-decoration, url(/assets/bg-large.png));
    background-attachment: fixed;
    background-position: top right;
    background-repeat: no-repeat;
    background-size: auto 90%;
    pointer-events: none;
    z-index: -1;
  }
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-top: var(--sp-lg);
  margin-bottom: var(--sp-md);
}

h1 {
  font-size: 3rem;
  font-family: "Satisfy", cursive;
  font-weight: 800;
  padding: 5px;
}
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: var(--sp-md); }

/* ===== LINKS ===== */
a {
  color: var(--accent-primary);
  text-decoration: none;
  position: relative;
}

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

/* ===== ACCENT UTILITIES ===== */
.accent-primary { color: var(--accent-primary); }
.accent-secondary { color: var(--accent-secondary); }
.accent-tertiary { color: var(--accent-tertiary); }

.accent-gradient {
  background: linear-gradient(135deg, var(--accent-secondary), var(--accent-tertiary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== LAYOUT UTILITIES ===== */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--sp-lg);
}

.content{
  background-color: color-mix(in srgb, var(--bg-primary) 80%, transparent);
}

.flex { display: flex; gap: var(--sp-md); }
.flex-center { display: flex; align-items: center; justify-content: center; gap: var(--sp-md); }
.grid { display: grid; gap: var(--sp-lg); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: var(--sp-md) var(--sp-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-secondary), var(--accent-tertiary));
  color: var(--bg-primary);
  font-weight: 700;
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-secondary:hover {
  background: rgba(187, 215, 255, 0.1);
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--sp-lg);
}

/* ===== CODE ===== */
code {
  font-family: "SUSE Mono", monospace;
  background: var(--bg-tertiary);
  padding: var(--sp-xs) var(--sp-sm);
  border-radius: var(--radius-sm);
  color: var(--accent-tertiary);
  font-size: 0.9rem;
  font-weight: 300;
  font-optical-sizing: auto;
}

pre {
  font-family: "SUSE Mono", monospace;
  font-weight: 300;
  font-optical-sizing: auto;
  background: var(--bg-tertiary);
  padding: var(--sp-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--sp-md);
  border-left: 3px solid var(--accent-primary);
}

pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

/* ===== LISTS ===== */
ul, ol {
  margin-left: var(--sp-lg);
  margin-bottom: var(--sp-md);
}

li {
  margin-bottom: var(--sp-sm);
}

/* ===== BLOCKQUOTES ===== */
blockquote {
  border-left: 3px solid var(--accent-secondary);
  padding-left: var(--sp-lg);
  margin-left: 0;
  margin-bottom: var(--sp-md);
  color: var(--text-secondary);
  font-style: italic;
}

/* ===== DIVIDERS ===== */
hr {
  border: none;
  height: 2px;
  background: linear-gradient(135deg, var(--accent-secondary), var(--accent-tertiary));
  margin: var(--sp-2xl) 0;
}

/* ===== TABLES ===== */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--sp-lg);
}

th, td {
  padding: var(--sp-md);
  text-align: left;
  border-bottom: 1px solid var(--bg-tertiary);
}

th {
  background: var(--bg-tertiary);
  font-weight: 700;
  color: var(--accent-primary);
}