/* pepper_c1 documentation — Eccel Technology colour scheme */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* ── Eccel palette ── */
  --red:       #cc1122;   /* logo red (wifi arcs) */
  --red-dark:  #a00e1a;   /* hover / active red   */
  --navy:      #1a2a4a;   /* deep navy from logo lettering */
  --navy-mid:  #2e4270;
  --charcoal:  #2f2f2f;   /* body text (from SVG fill) */
  --mid:       #555555;
  --muted:     #888888;
  --border:    #d8d8d8;
  --bg-page:   #f4f4f4;   /* light gray page background */
  --bg-white:  #ffffff;
  --bg-code:   #f0f2f5;
  --bg-nav:    #ffffff;
  --nav-w:     260px;
}

html { font-size: 15px; }
body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: var(--bg-page);
  color: var(--charcoal);
  display: flex;
  min-height: 100vh;
}

/* ── NAV ── */
nav {
  width: var(--nav-w);
  min-width: var(--nav-w);
  background: var(--bg-nav);
  border-right: 1px solid var(--border);
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.nav-logo {
  padding: 1.1rem 1.25rem;
  background: var(--navy);
  border-bottom: 3px solid var(--red);
}
.nav-logo a { text-decoration: none; }
.nav-logo .product {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.02em;
}
.nav-logo .sub {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.6);
  margin-top: 3px;
}

nav a { display: block; text-decoration: none; color: var(--charcoal); }
nav a:hover { color: var(--red); }

.nav-section { margin-top: 0.75rem; }
.nav-section-title {
  font-size: 0.63rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 0.4rem 1.25rem 0.25rem;
}
.nav-section a {
  padding: 0.32rem 1.25rem;
  font-size: 0.84rem;
  border-left: 3px solid transparent;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
  color: var(--mid);
}
.nav-section a:hover {
  background: #fdf0f1;
  color: var(--red);
  border-left-color: var(--red);
}
.nav-section a.active {
  color: var(--red-dark);
  border-left-color: var(--red);
  background: #fdf0f1;
  font-weight: 600;
}
.nav-section a.sub {
  padding-left: 2rem;
  font-size: 0.79rem;
  color: var(--muted);
}
.nav-section a.sub:hover { color: var(--red); }

/* ── MAIN ── */
main {
  flex: 1;
  max-width: 920px;
  padding: 2.5rem 3rem;
  overflow-x: hidden;
}

h1 {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 0.35rem;
}
h1 .badge {
  font-size: 0.68rem;
  font-weight: 700;
  background: var(--red);
  color: #fff;
  padding: 0.15em 0.5em;
  border-radius: 3px;
  vertical-align: middle;
  margin-left: 0.5rem;
}
.page-subtitle {
  color: var(--mid);
  margin-bottom: 2rem;
  font-size: 0.95rem;
  line-height: 1.55;
  border-bottom: 2px solid var(--red);
  padding-bottom: 1rem;
}
h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  margin: 2.5rem 0 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 2px solid var(--border);
}
h2:first-of-type { margin-top: 1rem; }
h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy-mid);
  margin: 1.25rem 0 0.4rem;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}
p { color: var(--mid); line-height: 1.65; margin-bottom: 0.75rem; }
ul, ol { color: var(--mid); padding-left: 1.4rem; margin-bottom: 0.75rem; line-height: 1.7; }
li { margin-bottom: 0.15rem; }

a { color: var(--red); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--red-dark); }

/* ── CODE ── */
code {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.87em;
  background: var(--bg-code);
  color: var(--navy);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  border: 1px solid var(--border);
}
pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-left: 4px solid var(--navy);
  border-radius: 0 5px 5px 0;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 0.75rem 0 1rem;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--charcoal);
}
pre code { background: none; border: none; padding: 0; font-size: inherit; color: inherit; }
pre .kw  { color: #0033aa; font-weight: 600; }
pre .str { color: #007700; }
pre .cmt { color: #888888; font-style: italic; }
pre .num { color: #cc4400; }
pre .fn  { color: #0055cc; }
pre .cls { color: #006666; font-weight: 600; }

/* ── METHOD CARD ── */
.method-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--navy);
  border-radius: 0 0 5px 5px;
  margin: 1.25rem 0;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
.method-header {
  padding: 0.8rem 1.25rem;
  background: var(--bg-code);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.method-name {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
}
.method-sig {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.82rem;
  color: var(--mid);
}
.method-body { padding: 1rem 1.25rem; }
.method-desc { color: var(--mid); font-size: 0.9rem; margin-bottom: 0.75rem; line-height: 1.6; }

/* ── PARAMS TABLE ── */
.params-table { width: 100%; border-collapse: collapse; font-size: 0.84rem; margin: 0.5rem 0 0.75rem; }
.params-table th {
  background: var(--navy);
  color: #ffffff;
  font-size: 0.69rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: left;
  padding: 0.4rem 0.75rem;
}
.params-table td {
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--mid);
  vertical-align: top;
}
.params-table tr:last-child td { border-bottom: none; }
.params-table tr:nth-child(even) td { background: #fafafa; }
.params-table .pname { font-family: 'Cascadia Code', 'Consolas', monospace; color: var(--navy); white-space: nowrap; font-weight: 600; }
.params-table .ptype { font-family: 'Cascadia Code', 'Consolas', monospace; color: #007060; white-space: nowrap; }
.params-table .pdefault { font-family: 'Cascadia Code', 'Consolas', monospace; color: #cc4400; }

/* ── RETURN / RAISES ── */
.returns-row, .raises-row {
  display: flex;
  gap: 0.6rem;
  font-size: 0.85rem;
  margin: 0.35rem 0;
  align-items: baseline;
}
.returns-label {
  color: var(--muted);
  font-size: 0.69rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  min-width: 58px;
  font-weight: 700;
}
.returns-type { font-family: 'Cascadia Code', 'Consolas', monospace; color: #007060; }
.raises-exc   { font-family: 'Cascadia Code', 'Consolas', monospace; color: var(--red); }
.returns-desc, .raises-desc { color: var(--mid); }

/* ── TAGS / BADGES ── */
.tag {
  font-size: 0.66rem;
  font-weight: 700;
  padding: 0.15em 0.55em;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.tag-general    { background: #e6eaf4; color: var(--navy); }
.tag-mf-classic { background: #e6f4ea; color: #1a6b2a; }
.tag-mfu        { background: #fff4e0; color: #8a5a00; }
.tag-desfire    { background: #f0e6f4; color: #6b1a8a; }
.tag-icode      { background: #fde8e8; color: var(--red-dark); }
.tag-transport  { background: #e0eef8; color: #0a4a7a; }
.tag-low        { background: #eeeeee; color: #555555; }

/* ── COMMAND TABLE ── */
.cmd-table { width: 100%; border-collapse: collapse; font-size: 0.84rem; margin-bottom: 1rem; }
.cmd-table th {
  background: var(--navy);
  color: #ffffff;
  font-size: 0.69rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: left;
  padding: 0.5rem 0.75rem;
}
.cmd-table td {
  padding: 0.38rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--mid);
}
.cmd-table tr:nth-child(even) td { background: #fafafa; }
.cmd-table tr:hover td { background: #fdf0f1; }
.cmd-table .cname { font-family: 'Cascadia Code', 'Consolas', monospace; color: var(--navy); font-weight: 600; }
.cmd-table .ccode { font-family: 'Cascadia Code', 'Consolas', monospace; color: #cc4400; }

/* ── NOTE / WARNING ── */
.note {
  background: #eef3fb;
  border-left: 4px solid var(--navy-mid);
  border-radius: 0 5px 5px 0;
  padding: 0.75rem 1rem;
  margin: 0.75rem 0;
  font-size: 0.87rem;
  color: var(--mid);
}
.note strong { color: var(--navy); }
.warning {
  background: #fff8e6;
  border-left: 4px solid #d4820a;
  border-radius: 0 5px 5px 0;
  padding: 0.75rem 1rem;
  margin: 0.75rem 0;
  font-size: 0.87rem;
  color: var(--mid);
}
.warning strong { color: #8a5200; }

/* ── CARD GRID ── */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(195px, 1fr)); gap: 1rem; margin: 1rem 0; }
.card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--red);
  border-radius: 0 0 5px 5px;
  padding: 1.1rem 1.1rem;
  text-decoration: none;
  color: var(--charcoal);
  transition: border-top-color 0.15s, box-shadow 0.15s;
  display: block;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.card:hover {
  border-top-color: var(--navy);
  box-shadow: 0 3px 10px rgba(0,0,0,0.12);
  text-decoration: none;
  color: var(--charcoal);
}
.card-title { font-weight: 700; font-size: 0.88rem; color: var(--navy); margin-bottom: 0.3rem; }
.card-desc { color: var(--muted); font-size: 0.78rem; line-height: 1.4; }

/* ── FRAME DIAGRAM ── */
.frame-diagram {
  display: flex;
  gap: 2px;
  margin: 1rem 0;
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.76rem;
  flex-wrap: wrap;
}
.frame-byte {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
  text-align: center;
  min-width: 68px;
}
.frame-byte .label { color: var(--muted); font-size: 0.65rem; display: block; }
.frame-byte .value { color: var(--navy); font-weight: 700; }
.frame-byte.stx { border-color: #007060; border-top: 3px solid #007060; }
.frame-byte.len { border-color: #cc8800; border-top: 3px solid #cc8800; }
.frame-byte.pay { border-color: var(--navy-mid); border-top: 3px solid var(--navy-mid); }
.frame-byte.crc { border-color: var(--red); border-top: 3px solid var(--red); }

/* ── HR ── */
hr { border: none; border-top: 1px solid var(--border); margin: 2rem 0; }

/* scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f0f0f0; }
::-webkit-scrollbar-thumb { background: #cccccc; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--red); }