/*
Theme Name: APM Forum
Theme URI: https://apmforum.com/
Author: APM Forum
Description: Custom analytical-ledger theme for apmforum.com — a neutral, non-commercial data-desk on online casino mechanics and regulation. Vanilla CSS, self-hosted fonts.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: apmforum
Tags: custom-menu, featured-images, translation-ready, custom-post-types
*/

/* ============================================================
   APM Forum — Analytical Ledger
   Fonts: Zilla Slab (slab display) · Crimson Pro (body) · Spline Sans Mono (mono/headings)
   Palette: oxblood ink on warm ledger paper
   ============================================================ */

:root {
  --apmf-paper:    #f9f7f2;
  --apmf-oxblood:  #6b1d1d;
  --apmf-slate:    #4a5568;
  --apmf-grey:     #8a94a6;
  --apmf-rule:     #e2e8f0;
  --apmf-graph:    rgba(107, 29, 29, 0.04);
  --apmf-white:    #ffffff;
  --apmf-maxw:     1180px;
  --apmf-readw:    900px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: 'Crimson Pro', Georgia, serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--apmf-slate);
  background-color: var(--apmf-paper);
  background-image: linear-gradient(var(--apmf-rule) 1px, transparent 1px);
  background-size: 100% 2rem;
}

.apmf-graph { background-image: radial-gradient(var(--apmf-graph) 1px, transparent 1px); background-size: 20px 20px; }

h1, h2, h3, h4, h5, .apmf-mono {
  font-family: 'Spline Sans Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--apmf-oxblood);
  line-height: 1.25;
}
.apmf-slab { font-family: 'Zilla Slab', Georgia, serif; text-transform: none; letter-spacing: 0; }

a { color: var(--apmf-oxblood); }

img { max-width: 100%; height: auto; }

.apmf-wrap { max-width: var(--apmf-maxw); margin: 0 auto; padding: 0 1.5rem; }
.apmf-read { max-width: var(--apmf-readw); margin: 0 auto; padding: 0 1.5rem; }
.apmf-shell { min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1 0 auto; }

/* ---------- Header ---------- */
.apmf-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--apmf-paper);
  border-bottom: 2px solid var(--apmf-oxblood);
}
.apmf-header-inner { max-width: var(--apmf-maxw); margin: 0 auto; padding: 0 1.5rem; height: 4rem; display: flex; align-items: center; justify-content: space-between; }
.apmf-logo { display: inline-flex; align-items: center; gap: .5rem; text-decoration: none; }
.apmf-nav { display: flex; align-items: center; gap: 1.5rem; }
.apmf-nav a {
  font-family: 'Spline Sans Mono', monospace;
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .02em; text-decoration: none; color: var(--apmf-oxblood);
}
.apmf-nav a:hover { text-decoration: underline; }
.apmf-nav a.apmf-nav-risk { color: #b91c1c; }
.apmf-build-tag {
  font-family: 'Spline Sans Mono', monospace; font-size: 10px;
  border: 1px solid var(--apmf-oxblood); padding: 2px 8px; color: var(--apmf-oxblood);
}
.apmf-nav-toggle { display: none; background: none; border: 1px solid var(--apmf-oxblood); color: var(--apmf-oxblood); font-family: 'Spline Sans Mono', monospace; font-size: 10px; padding: 4px 8px; cursor: pointer; }

/* ---------- Hero ---------- */
.apmf-hero { padding: 6rem 0; border-bottom: 1px solid var(--apmf-rule); }
.apmf-hero .apmf-read { margin: 0 auto; }
.apmf-eyebrow {
  display: inline-block; padding: 2px 8px; border: 1px solid var(--apmf-oxblood);
  font-family: 'Spline Sans Mono', monospace; font-size: 10px; font-weight: 700;
  letter-spacing: .15em; text-transform: uppercase; margin-bottom: 2rem; color: var(--apmf-oxblood);
}
.apmf-hero h1 { font-family: 'Zilla Slab', serif; text-transform: none; letter-spacing: 0; font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 700; line-height: 1.1; margin: 0 0 2rem; }
.apmf-hero p.apmf-standfirst { font-size: clamp(1.125rem, 2.5vw, 1.5rem); color: var(--apmf-slate); line-height: 1.6; margin: 0 0 2.5rem; max-width: 40rem; }

.apmf-btn {
  display: inline-flex; align-items: center; gap: .75rem;
  font-family: 'Spline Sans Mono', monospace; font-size: 12px; font-weight: 700;
  text-transform: uppercase; letter-spacing: .03em; text-decoration: none;
  background: var(--apmf-oxblood); color: #fff; padding: 12px 24px; border: none; cursor: pointer;
  transition: opacity .15s, background .15s;
}
.apmf-btn:hover { opacity: .9; }
.apmf-btn svg { width: 14px; height: 14px; }

/* ---------- Calculator ---------- */
.apmf-calc-section { padding: 5rem 0; }
.apmf-calc-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 3rem; align-items: start; }
.apmf-calc-chrome { border: 2px solid var(--apmf-oxblood); background: #fff; box-shadow: 4px 4px 0 var(--apmf-oxblood); padding: 2.5rem; }
.apmf-calc-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 3rem; }
.apmf-calc-head h2 { font-size: 1.5rem; font-weight: 700; margin: 0; }
.apmf-calc-meta { text-align: right; }
.apmf-calc-meta span { display: block; font-family: 'Spline Sans Mono', monospace; font-size: 9px; color: var(--apmf-grey); }
.apmf-calc-inputs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-bottom: 3rem; }
.apmf-calc-inputs label { display: block; font-family: 'Spline Sans Mono', monospace; font-size: 10px; font-weight: 700; color: var(--apmf-oxblood); margin-bottom: 1rem; text-transform: uppercase; }
.apmf-calc-field { font-family: 'Spline Sans Mono', monospace; border: none; border-bottom: 2px solid var(--apmf-oxblood); background: transparent; padding: .5rem 0; width: 100%; font-size: 1.125rem; color: var(--apmf-oxblood); }
.apmf-calc-field:focus { outline: none; background: #fffaf2; }
.apmf-calc-exec { width: 100%; justify-content: center; margin-bottom: 3rem; }
.apmf-calc-exec:hover { background: #000; opacity: 1; }
.apmf-calc-results { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 2px solid var(--apmf-oxblood); padding-top: 3rem; }
.apmf-calc-results > div { padding: 0 1rem; border-right: 1px solid var(--apmf-rule); }
.apmf-calc-results > div:first-child { padding-left: 0; }
.apmf-calc-results > div:last-child { border-right: none; padding-right: 0; }
.apmf-calc-results .apmf-out-label { font-family: 'Spline Sans Mono', monospace; font-size: 9px; color: var(--apmf-grey); margin: 0 0 .5rem; }
.apmf-calc-results .apmf-out-val { font-family: 'Spline Sans Mono', monospace; font-size: 1.5rem; font-weight: 700; color: var(--apmf-oxblood); margin: 0; }

/* Sidebar — ledger-native annotation (REPLACES the banned border-l-4 callout) */
.apmf-aside { position: sticky; top: 5.5rem; display: flex; flex-direction: column; gap: 2rem; }
.apmf-annot {
  background: #fff; border: 1px solid var(--apmf-oxblood); padding: 1.5rem 1.5rem 1.25rem;
  position: relative;
}
.apmf-annot::before {
  content: ""; position: absolute; left: 1.5rem; right: 1.5rem; top: .55rem;
  height: 0; border-top: 3px double var(--apmf-oxblood);
}
.apmf-annot .apmf-ref-tag {
  position: absolute; top: -1px; right: -1px; background: var(--apmf-oxblood); color: #fff;
  font-family: 'Spline Sans Mono', monospace; font-size: 8px; letter-spacing: .1em; padding: 2px 6px;
}
.apmf-annot h3 { font-size: 12px; font-weight: 700; margin: 1rem 0 1rem; }
.apmf-annot p.apmf-annot-quote { font-style: italic; font-size: .9rem; line-height: 1.6; margin: 0 0 1rem; color: var(--apmf-slate); }
.apmf-annot p.apmf-annot-ref { font-family: 'Spline Sans Mono', monospace; font-size: 9px; color: var(--apmf-grey); margin: 0; }
.apmf-notice { background: rgba(255,255,255,.5); border: 1px solid var(--apmf-rule); padding: 1.5rem; }
.apmf-notice h3 { font-size: 12px; font-weight: 700; margin: 0 0 1rem; }
.apmf-notice ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .75rem; }
.apmf-notice li { display: flex; gap: .75rem; font-size: .8rem; line-height: 1.45; }

/* ---------- Doc cards ---------- */
.apmf-docs { padding: 6rem 0; border-top: 1px solid var(--apmf-rule); border-bottom: 1px solid var(--apmf-rule); }
.apmf-section-label { font-family: 'Spline Sans Mono', monospace; font-size: 1.125rem; font-weight: 700; margin: 0 0 3rem; }
.apmf-method { padding: 6rem 0; border-bottom: 1px solid var(--apmf-rule); }
.apmf-method .apmf-read { margin: 0 auto; padding: 0; }
.apmf-doc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.apmf-doc-card { display: block; padding: 2rem; border: 1px solid var(--apmf-rule); background: #fff; text-decoration: none; transition: border-color .15s; }
.apmf-doc-card:hover { border-color: var(--apmf-oxblood); }
.apmf-doc-card .apmf-doc-id { font-family: 'Spline Sans Mono', monospace; font-size: 10px; color: var(--apmf-grey); margin-bottom: 1rem; }
.apmf-doc-card h3 { font-size: .875rem; font-weight: 700; margin: 0 0 .75rem; }
.apmf-doc-card p { font-size: .8rem; line-height: 1.5; color: var(--apmf-slate); margin: 0; }

/* ---------- Editorial log ---------- */
.apmf-log { padding: 6rem 0; background: rgba(255,255,255,.4); }
.apmf-log-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4rem; }
.apmf-log-head h1, .apmf-log-head h2 { font-family: 'Spline Sans Mono', monospace; font-size: 1.125rem; font-weight: 700; margin: 0; text-transform: none; }
.apmf-log-viewall { font-family: 'Spline Sans Mono', monospace; font-size: 10px; font-weight: 700; border-bottom: 1px solid var(--apmf-oxblood); padding-bottom: 4px; text-decoration: none; }
.apmf-log-list { display: flex; flex-direction: column; gap: 4rem; }
.apmf-log-item { display: grid; grid-template-columns: 1fr 3fr; gap: 2rem; }
.apmf-log-meta { font-family: 'Spline Sans Mono', monospace; font-size: 10px; color: var(--apmf-grey); }
.apmf-log-item h3 { font-family: 'Zilla Slab', serif; text-transform: none; letter-spacing: 0; font-size: 1.5rem; font-weight: 700; margin: 0 0 1rem; }
.apmf-log-item h3 a { text-decoration: none; }
.apmf-log-item p { font-size: .9rem; line-height: 1.6; margin: 0 0 1rem; }
.apmf-log-cat { font-family: 'Spline Sans Mono', monospace; font-size: 9px; color: var(--apmf-grey); }

/* ---------- Independence band ---------- */
.apmf-indep { padding: 4rem 0; background: var(--apmf-oxblood); color: #fff; text-align: center; }
.apmf-indep .apmf-indep-eyebrow { font-family: 'Spline Sans Mono', monospace; font-size: 10px; letter-spacing: .2em; margin-bottom: 1.5rem; }
.apmf-indep h2 { font-family: 'Zilla Slab', serif; text-transform: none; letter-spacing: 0; color: #fff; font-size: clamp(1.5rem, 3vw, 1.875rem); margin: 0 0 2rem; }
.apmf-indep p { max-width: 42rem; margin: 0 auto 2.5rem; font-size: .9rem; line-height: 1.6; color: rgba(255,255,255,.75); }
.apmf-indep-flags { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.apmf-indep-flags span { border: 1px solid rgba(255,255,255,.2); padding: 8px 16px; font-family: 'Spline Sans Mono', monospace; font-size: 10px; }

/* ---------- Risk band ---------- */
.apmf-risk { padding: 3rem 0; background: #450a0a; color: #fecaca; border-top: 2px solid #ef4444; text-align: center; }
.apmf-risk-age { font-family: 'Spline Sans Mono', monospace; border: 2px solid #ef4444; display: inline-block; padding: 8px 16px; font-size: 1.25rem; font-weight: 700; margin-bottom: 2rem; }
.apmf-risk h2 { font-family: 'Spline Sans Mono', monospace; color: #fecaca; font-size: .875rem; font-weight: 700; letter-spacing: .15em; margin: 0 0 1rem; }
.apmf-risk p { font-size: .8rem; opacity: .75; max-width: 48rem; margin: 0 auto 2rem; line-height: 1.6; }
.apmf-risk-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; font-family: 'Spline Sans Mono', monospace; font-size: 10px; }
.apmf-risk-links a { color: #fecaca; text-decoration: none; }
.apmf-risk-links a:hover { color: #fff; }

/* ---------- Footer ---------- */
.apmf-footer { background: var(--apmf-paper); border-top: 2px solid var(--apmf-oxblood); padding: 4rem 0; }
.apmf-footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 3rem; margin-bottom: 4rem; }
.apmf-footer-grid h4 { font-family: 'Spline Sans Mono', monospace; font-size: 10px; font-weight: 700; margin: 0 0 1.5rem; }
.apmf-footer-grid p { font-size: .8rem; line-height: 1.6; color: var(--apmf-slate); margin: 0; }
.apmf-footer-grid nav { display: flex; flex-direction: column; gap: .5rem; }
.apmf-footer-grid nav a { font-family: 'Spline Sans Mono', monospace; font-size: 10px; color: var(--apmf-slate); text-decoration: none; }
.apmf-footer-grid nav a:hover { color: var(--apmf-oxblood); }
.apmf-footer-meta { font-family: 'Spline Sans Mono', monospace; font-size: 9px; color: var(--apmf-grey); text-align: right; }
.apmf-footer-bottom { border-top: 1px solid var(--apmf-rule); padding-top: 2rem; display: flex; justify-content: space-between; gap: 1.5rem; flex-wrap: wrap; }
.apmf-footer-bottom p { font-family: 'Spline Sans Mono', monospace; font-size: 9px; color: var(--apmf-grey); margin: 0; }

/* ---------- Article / page content ---------- */
.apmf-article { padding: 4rem 0; }
.apmf-article h1.apmf-entry-title { font-family: 'Zilla Slab', serif; text-transform: none; letter-spacing: 0; font-size: clamp(2rem, 4vw, 3rem); line-height: 1.15; margin: 0 0 1.5rem; }
.apmf-entry-meta { font-family: 'Spline Sans Mono', monospace; font-size: 10px; color: var(--apmf-grey); margin-bottom: 2.5rem; text-transform: uppercase; }
.apmf-entry-content { font-size: 1.0625rem; }
.apmf-entry-content h2 { font-family: 'Spline Sans Mono', monospace; font-size: 1.25rem; margin: 2.5rem 0 1rem; }
.apmf-entry-content h3 { font-family: 'Spline Sans Mono', monospace; font-size: 1rem; margin: 2rem 0 .75rem; }
.apmf-entry-content p { margin: 0 0 1.25rem; }
.apmf-entry-content a { text-decoration: underline; }
.apmf-entry-content ul, .apmf-entry-content ol { margin: 0 0 1.25rem; padding-left: 1.25rem; }

/* Lead paragraph */
.apmf-entry-content p.apmf-lead { font-size: 1.25rem; line-height: 1.6; color: var(--apmf-oxblood); border-left: none; margin-bottom: 2rem; }

/* Figure / SVG infographic */
.apmf-figure { margin: 2.5rem 0; border: 1px solid var(--apmf-oxblood); background: #fff; padding: 1rem; }
.apmf-infographic { width: 100%; height: auto; display: block; }
.apmf-figcaption { font-family: 'Spline Sans Mono', monospace; font-size: .7rem; color: var(--apmf-grey); margin-top: .75rem; line-height: 1.5; text-align: left; }

/* Embed snippet (backlink magnet) */
.apmf-embed { width: 100%; font-family: 'Spline Sans Mono', monospace; font-size: .75rem; color: var(--apmf-slate); background: var(--apmf-paper); border: 1px solid var(--apmf-rule); padding: .75rem; resize: vertical; }

/* EEAT author box */
.apmf-author-box { display: flex; gap: 1.25rem; align-items: flex-start; margin: 3rem 0 0; padding: 1.5rem; border: 1px solid var(--apmf-oxblood); background: #fff; }
.apmf-author-portrait { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; flex: 0 0 72px; }
.apmf-author-name { font-family: 'Spline Sans Mono', monospace; font-size: .8rem; font-weight: 700; color: var(--apmf-oxblood); margin: 0 0 .5rem; text-transform: uppercase; }
.apmf-author-bio { font-size: .9rem; line-height: 1.55; margin: 0; color: var(--apmf-slate); }

/* FAQ accordion (native <details>) */
.apmf-faq { margin: 2.5rem 0; }
.apmf-faq summary { cursor: pointer; font-family: 'Spline Sans Mono', monospace; font-size: .9rem; font-weight: 600; color: var(--apmf-oxblood); padding: 1rem 0; border-bottom: 1px solid var(--apmf-rule); list-style: none; display: flex; justify-content: space-between; align-items: center; }
.apmf-faq summary::-webkit-details-marker { display: none; }
.apmf-faq summary::after { content: "[ + ]"; font-size: .75rem; color: var(--apmf-grey); }
.apmf-faq details[open] summary::after { content: "[ \2212 ]"; }
.apmf-faq details p { padding: 1rem 0; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .apmf-calc-layout { grid-template-columns: 1fr; }
  .apmf-doc-grid { grid-template-columns: repeat(2, 1fr); }
  .apmf-footer-grid { grid-template-columns: repeat(2, 1fr); }
  .apmf-aside { position: static; }
}
@media (max-width: 640px) {
  .apmf-nav { display: none; }
  .apmf-nav.apmf-open { display: flex; position: absolute; top: 4rem; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--apmf-paper); border-bottom: 2px solid var(--apmf-oxblood); padding: 1rem 1.5rem; }
  .apmf-nav-toggle { display: inline-block; }
  .apmf-calc-inputs { grid-template-columns: 1fr; gap: 1.5rem; }
  .apmf-calc-results { grid-template-columns: 1fr; gap: 1.5rem; }
  .apmf-calc-results > div { border-right: none; border-bottom: 1px solid var(--apmf-rule); padding: 0 0 1rem; }
  .apmf-calc-results > div:last-child { border-bottom: none; }
  .apmf-doc-grid, .apmf-footer-grid { grid-template-columns: 1fr; }
  .apmf-log-item { grid-template-columns: 1fr; gap: .5rem; }
  .apmf-build-tag { display: none; }
}