/* =========================================================
   PARCHMENT THEME BASE STYLESHEET
   This file contains ALL layout + typography rules.

   Users should NOT edit this file directly.
   All color + font customisation is done through `_config.yml`
   and inserted in CSS variables in `default.html`.
   ========================================================= */


/* -------------------------
   Global color variables
   -------------------------
   These are inserted dynamically from default.html.

   --parchment   : page background
   --ink         : main text color
   --ink-soft    : secondary text
   --border      : subtle lines
   --accent      : links / highlights
   --font-body   : main content font
-------------------------- */

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--parchment);
  color: var(--ink);
  line-height: 1.9; /* increased line height for cursive fonts */
}

/* -------------------------
   Two-column layout
-------------------------- */

.layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar is fixed so it stays visible while scrolling */
.sidebar {
  width: 260px;
  padding: 1.5rem 1.2rem;
  border-right: 1px solid var(--border);
  background: rgba(0,0,0,0.02);
  position: fixed;
  height: 100vh;
  overflow-y: auto;
}

/* Main content area is offset to avoid the sidebar */
.content {
  margin-left: 260px;
  padding: 3rem 3.5rem 4rem;
  max-width: 900px;
}

/* -------------------------
   Sidebar branding
-------------------------- */

.logo {
  width: 200px;
  height: 200px;
  margin: 1rem auto;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.logo img {
  display: block;          /* removes inline whitespace */
  margin: auto;           /* true horizontal + vertical centering */
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}

.site-name {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

/* Sidebar navigation links */

.sidebar nav {
  max-height: calc(100vh - 320px); /* leaves space for logo + title */
  overflow-y: auto;
  padding-right: 0.3rem;
}

.sidebar nav a {
  display: block;
  padding: 0.3rem 0;
  text-decoration: none;
  color: var(--ink-soft);
}

.sidebar nav a:hover {
  color: var(--ink);
  text-decoration: underline;
}

/* -------------------------
   Typography
-------------------------- */

h1 { font-size: 2rem; margin-top: 0; }
h2 { font-size: 1.6rem; margin-top: 2rem; }
h3 { font-size: 1.3rem; margin-top: 1.6rem; }
h4 { font-size: 1.1rem; margin-top: 1.2rem; }

h1, h2, h3, h4 {
  line-height: 1.25;
}

p { margin: 0.8rem 0; }

hr {
  border: none;
  border-top: 1px dashed var(--border);
  margin: 2rem 0;
}

/* -------------------------
   Lists
-------------------------- */

ul, ol {
  padding-left: 1.6rem;      /* Indent from content margin */
  margin: 0.8rem 0;          /* Vertical spacing between paragraphs and lists */
  line-height: 1.9;          /* Match body line-height for readability */
}

dl dt {
  font-weight: 600;           /* Term is emphasized */
  margin-top: 1rem;           /* Space above term */
}

dl dd {
  margin-left: 1rem;          /* Indent description slightly */
  margin-bottom: 0.6rem;
  line-height: 1.9;           /* Consistent spacing */
}

/* Optional: softer list markers */
ul li::marker, ol li::marker {
  color: var(--ink-soft);
}

/* -------------------------
   Tables
-------------------------- */

table {
  border-collapse: collapse;  /* Avoid double borders */
  width: 100%;                /* Full-width tables */
  margin: 1.5rem 0;           /* Vertical spacing */
  font-size: 0.95rem;         /* Slightly smaller than body text */
}

th, td {
  border: 1px solid var(--border);  /* Light parchment borders */
  padding: 0.8rem 1rem;             /* Generous padding for readability */
  text-align: left;
  vertical-align: top;
  line-height: 1.9;
}

th {
  background: var(--table-head-bg);
  font-weight: 600;
}

tr:nth-child(even) td {
  background: var(--table-row-alt-bg);
}

/* -------------------------
   Code formatting
-------------------------- */

code {
  background: rgba(0,0,0,0.05);
  padding: 0.15rem 0.3rem;
  border-radius: 4px;
  font-size: 0.9rem;
  font-family: monospace;
}

pre {
  background: rgba(0,0,0,0.05);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  white-space: pre-wrap;       /* allows wrapping */
  word-break: break-word;      /* legacy safety */
  overflow-wrap: anywhere;     /* modern browsers */
  overflow-x: hidden;          /* remove horizontal scrollbar */
  font-family: monospace;
}

pre code {
  background: none;
  padding: 0;
}

/* -------------------------
   Keyboard keys
-------------------------- */

kbd {
  background: rgba(0,0,0,0.05);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.85rem;
  font-family: monospace;
  white-space: nowrap;
}

/* -------------------------
   Images
-------------------------- */

.content img {
  display: block;
  margin: 2rem auto;
  max-width: 80%;
  height: auto;
}

/* -------------------------
   Notes and blockquotes
-------------------------- */

.note, blockquote {
  background: rgba(0,0,0,0.03);
  border-left: 4px solid var(--accent);
  padding: 0.8rem 1rem;
  margin: 1.2rem 0;
  border-radius: 6px;
}

/* -------------------------
   Responsive layout
-------------------------- */

@media (max-width: 800px) {
  .sidebar {
    position: relative;
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .content {
    margin-left: 0;
    padding: 2rem 1.5rem 3rem;
  }

  .layout {
    flex-direction: column;
  }
}