/* ── CSS Variables ── */
:root {
  --bg:        #0a0e14;
  --surface:   #131c2b;
  --border:    #1e2d42;
  --accent:    #00c896;
  --accent2:   #0af0b0;
  --text:      #cdd6e0;
  --text-dim:  #5a7080;
  --heading:   #e8f0f8;
  --font-mono: 'Share Tech Mono', monospace;
  --font-body: 'Sora', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  background-image:
    linear-gradient(rgba(0,200,150,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,200,150,.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent2); }

/* ── PAGE HEADER ── */
.page-header {
  border-bottom: 1px solid var(--border);
  padding: 4rem 2rem 2.5rem;
}

.page-header-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.hero-tag {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: .75rem;
  letter-spacing: .15em;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.hero-tag::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--accent);
  display: inline-block;
}

.entry-title {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--heading);
  font-weight: normal;
}

.entry-title img { vertical-align: middle; margin-left: .5rem; }

/* ── LAYOUT ── */
.cheatsheet-layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 2rem 5rem;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 3rem;
  align-items: start;
}

/* ── TOC ── */
.toc {
  position: sticky;
  top: 4.5rem;
  font-family: var(--font-mono);
  font-size: .75rem;
}

.toc-title {
  color: var(--text-dim);
  font-size: .7rem;
  letter-spacing: .15em;
  margin-bottom: .75rem;
}

.toc a {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--text-dim);
  padding: .4rem .75rem;
  border-left: 2px solid var(--border);
  transition: color .2s, border-color .2s;
}

.toc a:hover {
  color: var(--accent);
  border-left-color: var(--accent);
}

/* ── SECTIONS GRID ── */
.cheatsheet-content {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  align-items: start;
}

.cs-section {
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
}

.cs-section-header {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(0,200,150,.04);
}

.cs-section-header h2 {
  font-family: var(--font-mono);
  font-size: .85rem;
  letter-spacing: .1em;
  color: var(--heading);
  font-weight: normal;
}

.section-icon {
  color: var(--accent);
  font-size: .9rem;
  width: 1.2rem;
  text-align: center;
}

/* Description under section header */
.cs-desc {
  padding: .75rem 1.25rem;
  font-size: .82rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
}

/* ── ACCORDION ENTRIES ── */
.cs-entry { border-bottom: 1px solid var(--border); }
.cs-entry:last-child { border-bottom: none; }

.cs-entry-name {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--accent);
  padding: .6rem 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  transition: background .15s;
}

.cs-entry-name:hover { background: rgba(0,200,150,.04); }

.cs-entry-name .toggle-icon {
  color: var(--text-dim);
  font-size: .65rem;
  transition: transform .25s;
  flex-shrink: 0;
}

.cs-entry-name.open .toggle-icon { transform: rotate(180deg); }

.cs-entry-code {
  overflow: hidden;
  max-height: 0;
  transition: max-height .3s ease;
}

.cs-entry-code.open { max-height: 600px; }

/* Plain text entry body (for non-code content) */
.cs-entry-body {
  padding: .75rem 1.25rem 1rem;
  font-size: .82rem;
  color: var(--text);
  line-height: 1.7;
  background: #0d1520;
}

.cs-entry-body b { color: var(--accent2); font-weight: normal; }
.cs-entry-body i { color: var(--text-dim); }

.cs-entry-body code {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--accent);
  background: rgba(0,200,150,.07);
  padding: .1rem .35rem;
  border-radius: 2px;
}

/* Prism override */
.cs-entry-code pre[class*="language-"] {
  margin: 0;
  padding: .75rem 1.25rem 1rem;
  background: #0d1520 !important;
  border-radius: 0;
  font-size: .78rem;
  font-family: var(--font-mono);
}

/* ── BACK TO TOP ── */
#myBtn {
  display: none;
  position: fixed;
  bottom: 2rem; right: 2rem;
  background: var(--surface);
  border: 1px solid var(--accent);
  color: var(--accent);
  width: 2.5rem; height: 2.5rem;
  cursor: pointer;
  font-size: 1rem;
  transition: background .2s, color .2s;
  z-index: 99;
}

#myBtn:hover { background: var(--accent); color: var(--bg); }

/* ── RESPONSIVE ── */
@media (max-width: 720px) {
  .cheatsheet-layout { grid-template-columns: 1fr; }
  .toc { display: none; }
}