/*
Theme Name: Living Notebook
Theme URI: https://farshadnasimi.com
Author: Farshad Nasimi
Description: A growth-stage writing theme — Signals, Inquiry, Origins — with a concentric-ring visual motif, light/dark mode, and a reading-progress bar.
Version: 1.0.1
Requires at least: 6.0
Requires PHP: 7.4
License: Unlicense
Text Domain: living-notebook
*/

/* ==========================================================================
   Tokens
   ========================================================================== */
:root{
  --paper: #EDEBE1;
  --paper-raised: #F7F5EC;
  --paper-sunk: #E4E1D3;
  --ink: #221E17;
  --ink-soft: #5B5645;
  --ink-faint: #8B8570;
  --line: #D6D0BC;
  --accent: #2C4A6E;
  --accent-soft: #DDE4EA;
  --clay: #9C5A3C;
  --clay-soft: #EDE0D8;
  --amber: #B87B22;
  --amber-soft: #F1E4CC;
  --shadow: 0 1px 2px rgba(34,30,23,0.07), 0 14px 32px -18px rgba(34,30,23,0.28);
  --shadow-lift: 0 4px 8px rgba(34,30,23,0.08), 0 24px 48px -20px rgba(34,30,23,0.32);
  --radius: 6px;
  --grain-opacity: 0.05;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper: #16140F;
    --paper-raised: #201C14;
    --paper-sunk: #0F0D09;
    --ink: #EDE8DA;
    --ink-soft: #B7AF98;
    --ink-faint: #7C755F;
    --line: #38321F;
    --accent: #8FB2DF;
    --accent-soft: #22303F;
    --clay: #D89A72;
    --clay-soft: #33231A;
    --amber: #E7B25C;
    --amber-soft: #362A16;
    --shadow: 0 1px 2px rgba(0,0,0,0.45), 0 14px 32px -18px rgba(0,0,0,0.7);
    --shadow-lift: 0 4px 8px rgba(0,0,0,0.5), 0 24px 48px -20px rgba(0,0,0,0.8);
    --grain-opacity: 0.08;
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --paper: #16140F;
  --paper-raised: #201C14;
  --paper-sunk: #0F0D09;
  --ink: #EDE8DA;
  --ink-soft: #B7AF98;
  --ink-faint: #7C755F;
  --line: #38321F;
  --accent: #8FB2DF;
  --accent-soft: #22303F;
  --clay: #D89A72;
  --clay-soft: #33231A;
  --amber: #E7B25C;
  --amber-soft: #362A16;
  --shadow: 0 1px 2px rgba(0,0,0,0.45), 0 14px 32px -18px rgba(0,0,0,0.7);
  --shadow-lift: 0 4px 8px rgba(0,0,0,0.5), 0 24px 48px -20px rgba(0,0,0,0.8);
  --grain-opacity: 0.08;
  color-scheme: dark;
}

/* ==========================================================================
   Reset & base
   ========================================================================== */
*{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  position: relative;
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}
::selection{ background: var(--amber-soft); }
a{ color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:focus-visible, button:focus-visible{ outline: 2px solid var(--accent); outline-offset: 2px; }
img{ max-width:100%; display:block; border-radius: var(--radius); }
button{ font: inherit; background:none; border:none; cursor:pointer; color: inherit; }

/* film-grain overlay, drawn once as an SVG turbulence filter — no image asset */
body::before{
  content:"";
  position: fixed; inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: var(--grain-opacity);
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap{ max-width: 1080px; margin: 0 auto; padding: 0 26px; }
.prose{ max-width: 66ch; }
.prose > * + *{ margin-top: 1.15em; }
.prose h2{ font-size: 24px; margin-top: 1.8em; }
.prose figure{ margin: 0; }
.prose figcaption{ font-family:"IBM Plex Mono", monospace; font-size:12.5px; color:var(--ink-faint); margin-top:10px; }

h1,h2,h3,h4{
  font-family: "Fraunces", Georgia, serif;
  color: var(--ink);
  font-weight: 600;
  text-wrap: balance;
  margin: 0;
}
.mono{ font-family:"IBM Plex Mono", ui-monospace, monospace; }
.eyebrow{
  font-family:"IBM Plex Mono", monospace;
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before{ content:""; width:16px; height:1px; background: var(--ink-faint); display:inline-block; }

/* ==========================================================================
   Ring mark
   ========================================================================== */
.mark{ color: var(--ink); flex: none; }
.mark.spin{ animation: spin-in 900ms ease-out both; }
@keyframes spin-in{ from{ opacity:0; transform: rotate(-24deg) scale(.7);} to{ opacity:1; transform: rotate(0) scale(1);} }

/* ==========================================================================
   Site header
   ========================================================================== */
.site-header{
  position: sticky; top:0; z-index: 100;
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.site-header .wrap{ display:flex; justify-content:space-between; align-items:center; gap:20px; }
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; }
.brand-name{ font-family:"Fraunces", serif; font-weight:600; font-size:19px; color:var(--ink); }
.header-right{ display:flex; align-items:center; gap:6px; }

.site-nav ul{ display:flex; gap:22px; flex-wrap:wrap; list-style:none; margin:0; padding:0; }
.site-nav a{
  font-family:"IBM Plex Mono", monospace; font-size:12.5px; letter-spacing:.04em; text-transform:uppercase;
  color: var(--ink-soft); text-decoration:none; padding-bottom:3px; border-bottom:1px solid transparent;
}
.site-nav a:hover, .site-nav a[aria-current="page"]{ color:var(--ink); border-bottom-color: var(--clay); }

.icon-btn{
  width:36px; height:36px; display:inline-flex; align-items:center; justify-content:center;
  border:1px solid var(--line); border-radius:50%; color:var(--ink-soft);
}
.icon-btn:hover{ color:var(--ink); border-color:var(--ink-faint); }
.icon-btn svg{ width:16px; height:16px; }
.theme-toggle .sun{ display:none; }
:root[data-theme="dark"] .theme-toggle .sun{ display:block; }
:root[data-theme="dark"] .theme-toggle .moon{ display:none; }
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .theme-toggle .sun{ display:block; }
  :root:not([data-theme="light"]) .theme-toggle .moon{ display:none; }
}

.nav-toggle{ display:none; width:36px; height:36px; border:1px solid var(--line); border-radius:50%; align-items:center; justify-content:center; }
.nav-toggle svg{ width:16px; height:16px; }

/* reading progress bar (entry pages only) */
.progress-track{ position: fixed; top: 0; left:0; right:0; z-index: 200; height:3px; background: transparent; }
.progress-bar{ height:100%; width:0%; background: linear-gradient(90deg, var(--amber), var(--clay), var(--accent)); transition: width 80ms linear; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{ position: relative; padding: 76px 0 56px; border-bottom:1px solid var(--line); overflow:hidden; }
.hero-rings{
  position:absolute; right:-120px; top:50%; transform: translateY(-50%);
  width:520px; height:520px; color: var(--ink); opacity:.05; pointer-events:none;
}
.hero-grid{ position:relative; display:grid; grid-template-columns: 1fr 260px; gap:40px; align-items:center; }
.hero h1{ font-size: clamp(34px, 5.4vw, 54px); line-height:1.06; max-width: 15ch; margin: 16px 0 20px; }
.hero .dek{ max-width: 56ch; font-size: 19px; color: var(--ink-soft); margin: 0 0 26px; }
.hero .actions{ display:flex; gap:14px; flex-wrap:wrap; }

.stamp-cluster{ position: relative; height: 220px; display:none; }
.stamp{
  position:absolute; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center;
  width:132px; height:132px; border-radius:50%; gap:2px; color: var(--ink-soft);
}
.stamp svg{ position:absolute; inset:0; width:100%; height:100%; }
.stamp-label{ font-family:"IBM Plex Mono",monospace; font-size:10.5px; letter-spacing:.06em; text-transform:uppercase; position:relative; }
.stamp-sub{ font-family:"Fraunces", serif; font-style:italic; font-size:12px; color:var(--ink-faint); position:relative; }
.stamp-amber{ color: var(--amber); top:0; right:70px; transform: rotate(-6deg); }
.stamp-blue{ color: var(--accent); top:56px; right:-10px; transform: rotate(4deg); }
.stamp-clay{ color: var(--clay); bottom:-6px; right:96px; transform: rotate(-3deg); }

.btn{
  display:inline-flex; align-items:center; gap:8px; font-family:"IBM Plex Mono", monospace; font-size:12.5px;
  letter-spacing:.05em; text-transform:uppercase; text-decoration:none; padding:12px 20px; border-radius:3px; border:1px solid var(--line);
  transition: transform 160ms ease, border-color 160ms ease, opacity 160ms ease;
}
.btn.primary{ background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn.ghost{ color: var(--ink-soft); }
.btn.primary:hover{ opacity:.88; transform: translateY(-1px); }
.btn.ghost:hover{ color:var(--ink); border-color:var(--ink-faint); transform: translateY(-1px); }

/* ---------- maxims ---------- */
.maxims{ display:flex; gap:0; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; margin-top:38px; box-shadow: var(--shadow); }
.maxim{ flex:1; padding:16px 18px; background:var(--paper-raised); }
.maxim + .maxim{ border-left:1px solid var(--line); }
.maxim .k{ font-family:"IBM Plex Mono", monospace; font-size:10px; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint); }
.maxim .v{ font-family:"Fraunces", serif; font-weight:600; font-size:17px; margin-top:4px; }

/* ==========================================================================
   Section scaffolding
   ========================================================================== */
section.block{ padding: 56px 0; border-bottom:1px solid var(--line); }
section.block.muted{ background: var(--paper-raised); }
main > section.block:last-of-type{ border-bottom:none; }
.block-head{ margin-bottom:32px; max-width:70ch; }
.block-head h2{ font-size: clamp(23px, 3vw, 29px); margin-top:8px; }
.block-head p{ color:var(--ink-soft); margin-top:12px; font-size:16px; }

/* ---------- scroll reveal ---------- */
.reveal{ opacity:0; transform: translateY(14px); transition: opacity 560ms ease, transform 560ms ease; }
.reveal.is-visible{ opacity:1; transform:none; }

/* ---------- specimen cards (home stage grid) ---------- */
.specimen-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:8px; }
.specimen-card{
  position:relative; border:1px solid var(--line); border-radius:var(--radius); background:var(--paper-raised); padding:24px 22px 22px;
  text-decoration:none; color:var(--ink); display:flex; flex-direction:column; gap:12px;
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
  border-top: 3px solid var(--line);
}
.specimen-card.c-amber{ border-top-color: var(--amber); }
.specimen-card.c-blue{ border-top-color: var(--accent); }
.specimen-card.c-clay{ border-top-color: var(--clay); }
.specimen-card:hover{ border-color: var(--ink-faint); transform: translateY(-3px); box-shadow: var(--shadow-lift); }
.specimen-card .mark{ margin-bottom:2px; }
.specimen-card h3{ font-size:20px; }
.specimen-card p{ font-size:14.5px; color:var(--ink-soft); margin:0; }
.specimen-card .go{ font-family:"IBM Plex Mono",monospace; font-size:11px; color:var(--ink-faint); margin-top:auto; }

/* ---------- stage pill ---------- */
.dot{ width:8px; height:8px; border-radius:50%; display:inline-block; flex:none; }
.dot.clay{ background: var(--clay); } .dot.blue{ background: var(--accent); } .dot.amber{ background: var(--amber); }
.stage-pill{
  display:inline-flex; align-items:center; gap:7px;
  font-family:"IBM Plex Mono", monospace; font-size:11px; letter-spacing:.06em; text-transform:uppercase;
  color: var(--ink-soft); background: var(--paper-raised); border:1px solid var(--line); border-radius:20px; padding:4px 12px 4px 8px;
}

/* ---------- path cards (start here) ---------- */
.path-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; margin-top:8px; counter-reset: path; }
.path-card{ position:relative; border:1px solid var(--line); border-radius:var(--radius); padding:26px 22px; background:var(--paper-raised); counter-increment: path; }
.path-card::before{
  content: counter(path, decimal-leading-zero); position:absolute; top:18px; right:20px;
  font-family:"IBM Plex Mono",monospace; font-size:11px; color:var(--ink-faint);
}
.path-card .eyebrow{ margin-bottom:12px; }
.path-card h3{ font-size:18px; margin-bottom:10px; padding-right:34px; }
.path-card p{ font-size:14.5px; color:var(--ink-soft); margin:0 0 14px; }
.path-card a{ font-family:"IBM Plex Mono",monospace; font-size:12px; text-decoration:none; }

/* ==========================================================================
   Entry list (index pages)
   ========================================================================== */
.entry-list{ display:flex; flex-direction:column; }
.entry-row{
  display:grid; grid-template-columns: 34px 130px 1fr; gap:18px; padding:22px 4px; border-bottom:1px solid var(--line);
  position: relative; transition: padding-left 180ms ease;
}
.entry-row:last-child{ border-bottom:none; }
.entry-row::before{
  content:""; position:absolute; left:0; top:0; bottom:0; width:2px; background: transparent; transition: background 180ms ease;
}
.entry-row:hover::before{ background: var(--clay); }
.entry-row:hover{ padding-left:14px; }
.entry-row .mark{ margin-top:3px; }
.entry-row.stage-signals .mark{ color: var(--amber); }
.entry-row.stage-inquiry .mark{ color: var(--accent); }
.entry-row.stage-origins .mark{ color: var(--clay); }
.entry-row time{ font-family:"IBM Plex Mono",monospace; font-size:12px; color:var(--ink-faint); padding-top:3px; }
.entry-row h3{ font-size:19px; margin-bottom:6px; }
.entry-row h3 a{ color:var(--ink); text-decoration:none; }
.entry-row h3 a:hover{ color:var(--accent); }
.entry-row p{ margin:0; color:var(--ink-soft); font-size:15px; }

.entry-row.stage-signals h3 a{ font-style:italic; font-weight:500; }
.entry-row.stage-inquiry h3 a{ font-weight:600; }
.entry-row.stage-origins h3 a{ font-weight:600; }

/* ---------- empty / seed state ---------- */
.empty-state{
  border:1px dashed var(--line); border-radius:var(--radius); padding:36px 28px; margin-top:8px;
  color:var(--ink-soft); font-size:15px; max-width:64ch; position:relative; display:flex; gap:18px; align-items:flex-start;
}
.empty-state .mark{ flex:none; margin-top:2px; opacity:.6; }
.empty-state strong{ color:var(--ink); }

/* ==========================================================================
   Single entry
   ========================================================================== */
.entry-head{ padding: 52px 0 34px; border-bottom:1px solid var(--line); }
.entry-head-grid{ display:grid; grid-template-columns: auto 1fr; gap:28px; align-items:flex-start; }
.entry-badge{
  width:78px; height:78px; border-radius:50%; flex:none; position:relative; display:flex; align-items:center; justify-content:center;
}
.entry-badge svg{ position:absolute; inset:0; width:100%; height:100%; }
.entry-badge.c-amber{ color:var(--amber); } .entry-badge.c-blue{ color:var(--accent); } .entry-badge.c-clay{ color:var(--clay); }
.entry-meta{ display:flex; gap:16px; flex-wrap:wrap; align-items:center; margin-bottom:14px; }
.entry-meta .m{ font-family:"IBM Plex Mono",monospace; font-size:11.5px; color:var(--ink-faint); letter-spacing:.03em; }
.entry-title{ font-size:clamp(28px,4.4vw,44px); line-height:1.1; max-width:22ch; }
.entry-title.stage-signals{ font-style:italic; font-weight:500; }
.entry-lede{ color:var(--ink-soft); font-size:17.5px; margin-top:16px; max-width:60ch; font-family:"Fraunces", serif; font-weight:500; }

.entry-layout{ display:grid; grid-template-columns: 1fr 240px; gap:48px; padding: 46px 0; }
.entry-layout .sidenotes{ display:flex; flex-direction:column; gap:22px; }
.sidenote{ font-size:13.5px; color:var(--ink-soft); border-left:2px solid var(--line); padding-left:14px; }
.sidenote .sn-num{ font-family:"IBM Plex Mono",monospace; color:var(--ink-faint); margin-right:4px; }

.backlinks{
  margin-top:8px; padding:18px 20px; background:var(--paper-raised); border:1px solid var(--line); border-radius:var(--radius);
}
.backlinks h4{ font-size:13px; margin-bottom:10px; }
.backlinks ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:8px; }
.backlinks a{ font-size:14.5px; text-decoration:none; }
.backlinks .dir{ font-family:"IBM Plex Mono",monospace; font-size:10px; color:var(--ink-faint); text-transform:uppercase; margin-right:8px; }

.revisions{ margin-top:8px; }
.revisions ol{ list-style:none; margin:0; padding:0; }
.revisions li{ display:flex; gap:14px; font-size:13.5px; color:var(--ink-soft); padding:8px 0; border-bottom:1px dashed var(--line); }
.revisions li:last-child{ border-bottom:none; }
.revisions time{ font-family:"IBM Plex Mono",monospace; font-size:11.5px; color:var(--ink-faint); flex:none; width:100px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ padding: 46px 0 60px; border-top: 1px solid var(--line); margin-top: 8px; }
.site-footer .wrap{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:14px; align-items:center; }
.footer-brand{ display:flex; align-items:center; gap:10px; }
.footer-brand .mark{ color: var(--ink-faint); }
.site-footer p{ margin:0; font-size:12.5px; color:var(--ink-faint); font-family:"IBM Plex Mono",monospace; }
.footer-links{ display:flex; gap:14px; align-items:center; }
.site-footer a{ color:var(--ink-soft); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (min-width: 900px){
  .stamp-cluster{ display:block; }
}
@media (max-width: 899px){
  .hero-grid{ grid-template-columns: 1fr; }
}
@media (max-width: 760px){
  .specimen-grid, .path-grid{ grid-template-columns:1fr; }
  .entry-row{ grid-template-columns: 20px 1fr; column-gap:14px; row-gap:4px; }
  .entry-row .mark{ grid-row: 1 / 3; }
  .entry-row time{ grid-column: 2; }
  .entry-row time + div{ grid-column: 2; }
  .entry-layout{ grid-template-columns:1fr; }
  .maxims{ flex-direction:column; }
  .maxim + .maxim{ border-left:none; border-top:1px solid var(--line); }
  .entry-head-grid{ grid-template-columns: 1fr; }

  .site-nav{
    position:absolute; left:0; right:0; top: 100%; background: var(--paper); border-bottom:1px solid var(--line);
    max-height:0; overflow:hidden; transition: max-height 220ms ease;
  }
  .site-header[data-nav-open="true"] .site-nav{ max-height: 320px; }
  .site-nav ul{ flex-direction:column; gap:0; padding: 8px 26px 18px; }
  .site-nav li{ padding: 10px 0; border-bottom:1px dashed var(--line); }
  .site-nav li:last-child{ border-bottom:none; }
  .nav-toggle{ display:inline-flex; }
}