/*
Theme Name: Business Value Engineering
Theme URI: https://businessvalueengineering.com
Author: Business Value Engineering
Author URI: https://businessvalueengineering.com
Description: The definitive educational hub for business value engineering. A custom theme for frameworks, methodologies, and resources for quantifying and communicating business value in enterprise technology.
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: bve
Requires at least: 6.0
Requires PHP: 7.4
*/

/* ══════════════════════════════════════
   DESIGN TOKENS
   ══════════════════════════════════════ */
:root {
  --ink: #0B1215;
  --slate: #1A2530;
  --steel: #2D3E4A;
  --ash: #6B7F8E;
  --fog: #A3B4C0;
  --cloud: #D4DEE5;
  --paper: #F0F3F5;
  --white: #FAFBFC;
  --gold: #C8943E;
  --gold-light: #E8B960;
  --gold-dim: rgba(200, 148, 62, 0.12);
  --teal: #2A9D8F;
  --teal-dim: rgba(42, 157, 143, 0.10);
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'DM Sans', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

/* ══════════════════════════════════════
   RESET & BASE
   ══════════════════════════════════════ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--sans);
  color: var(--slate);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ══════════════════════════════════════
   UTILITY
   ══════════════════════════════════════ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }
.container--narrow { max-width: 800px; margin: 0 auto; padding: 0 2rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ══════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--cloud);
  transition: all 0.3s ease;
}
.nav.scrolled { box-shadow: 0 1px 20px rgba(11, 18, 21, 0.06); }
.nav__inner {
  max-width: 1200px; margin: 0 auto; padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav__brand {
  font-family: var(--serif); font-size: 1.25rem; color: var(--ink);
  text-decoration: none; letter-spacing: -0.01em;
}
.nav__brand span { color: var(--gold); }
.nav__links { display: flex; gap: 2rem; align-items: center; }
.nav__links a {
  font-size: 0.875rem; color: var(--ash); text-decoration: none;
  font-weight: 500; letter-spacing: 0.02em; transition: color 0.2s;
}
.nav__links a:hover { color: var(--ink); }
.nav__cta {
  background: var(--ink) !important; color: var(--white) !important;
  padding: 0.5rem 1.25rem !important; border-radius: 6px;
  font-size: 0.8rem !important; letter-spacing: 0.04em !important;
  text-transform: uppercase; transition: all 0.2s !important;
}
.nav__cta:hover { background: var(--steel) !important; }
.nav__mobile { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav__mobile svg { width: 24px; height: 24px; stroke: var(--ink); }

/* ══════════════════════════════════════
   HERO
   ══════════════════════════════════════ */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 140px 0 80px;
  background:
    radial-gradient(ellipse 80% 60% at 30% 70%, var(--gold-dim) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 70% 30%, var(--teal-dim) 0%, transparent 50%),
    linear-gradient(180deg, var(--white) 0%, var(--paper) 100%);
  position: relative;
}
.hero__layout {
  display: flex; flex-direction: column; align-items: center; text-align: center;
}
.hero__eyebrow {
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 0.75rem;
}
.hero__eyebrow::before {
  content: ''; width: 32px; height: 1px; background: var(--gold);
}
.hero h1 {
  font-family: var(--serif); font-size: clamp(2.8rem, 5vw, 4.2rem);
  line-height: 1.08; color: var(--ink); margin-bottom: 1.5rem;
  letter-spacing: -0.02em; max-width: 700px;
}
.hero h1 em { font-style: italic; color: var(--gold); }
.hero__sub {
  font-size: 1.15rem; color: var(--ash); line-height: 1.7;
  max-width: 620px; margin-bottom: 2.5rem;
}
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.875rem 2rem; border-radius: 8px; font-size: 0.9rem;
  font-weight: 600; text-decoration: none; transition: all 0.25s;
  cursor: pointer; border: none; font-family: var(--sans);
}
.btn--primary { background: var(--ink); color: var(--white); }
.btn--primary:hover { background: var(--steel); transform: translateY(-1px); box-shadow: 0 4px 20px rgba(11,18,21,0.15); }
.btn--secondary { background: transparent; color: var(--ink); border: 1.5px solid var(--cloud); }
.btn--secondary:hover { border-color: var(--ash); background: var(--paper); }
.btn svg { width: 16px; height: 16px; }

.hero__visual {
  position: relative; display: flex; justify-content: center; align-items: center;
  margin-top: 4rem; width: 100%;
}
.hero__diagram {
  width: 100%; max-width: 540px; aspect-ratio: 1;
  position: relative;
}
.diagram__ring {
  position: absolute; border-radius: 50%;
  border: 1.5px solid var(--cloud);
  animation: spin 40s linear infinite;
}
.diagram__ring--outer { inset: 8%; }
.diagram__ring--mid { inset: 20%; border-color: var(--gold-dim); border-width: 1.5px; animation-duration: 30s; animation-direction: reverse; }
.diagram__ring--inner { inset: 33%; border-style: dashed; border-color: var(--teal-dim); animation-duration: 20s; }
@keyframes spin { to { transform: rotate(360deg); } }

.diagram__node {
  position: absolute; background: var(--white);
  border: 1.5px solid var(--cloud); border-radius: 12px;
  padding: 1rem 1.25rem; font-size: 0.8rem; font-weight: 600;
  color: var(--slate); box-shadow: 0 2px 12px rgba(11,18,21,0.04);
  white-space: nowrap; z-index: 2;
  transition: all 0.3s ease;
}
.diagram__node:hover { border-color: var(--gold); box-shadow: 0 6px 24px rgba(200,148,62,0.12); }
.diagram__node--top { top: -2%; left: 50%; transform: translateX(-50%); }
.diagram__node--right { top: 50%; right: -22%; transform: translateY(-50%); }
.diagram__node--bottom { bottom: -2%; left: 50%; transform: translateX(-50%); }
.diagram__node--left { top: 50%; left: -22%; transform: translateY(-50%); }
.diagram__node small { display: block; font-weight: 400; color: var(--ash); font-size: 0.7rem; margin-top: 2px; }
.diagram__center {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: var(--ink); color: var(--white); border-radius: 50%;
  width: 110px; height: 110px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; z-index: 3;
  font-family: var(--serif); font-size: 1rem; line-height: 1.2;
  box-shadow: 0 8px 32px rgba(11,18,21,0.2);
}
.diagram__center span { font-size: 0.65rem; font-family: var(--mono); color: var(--gold-light); letter-spacing: 0.05em; margin-top: 4px; }

/* ══════════════════════════════════════
   SECTIONS (shared)
   ══════════════════════════════════════ */
section { padding: 100px 0; }
.section__eyebrow {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 1rem;
}
.section__title {
  font-family: var(--serif); font-size: clamp(2rem, 3.5vw, 2.8rem);
  color: var(--ink); line-height: 1.15; margin-bottom: 1rem;
  letter-spacing: -0.015em;
}
.section__sub {
  font-size: 1.05rem; color: var(--ash); max-width: 600px; line-height: 1.7;
}

/* ══════════════════════════════════════
   WHAT IS VE
   ══════════════════════════════════════ */
.what-is { background: var(--paper); border-top: 1px solid var(--cloud); border-bottom: 1px solid var(--cloud); }
.what-is__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; margin-top: 3.5rem; }
.what-is__content p { color: var(--steel); margin-bottom: 1.25rem; font-size: 1.02rem; }
.what-is__content p:first-of-type::first-line { font-weight: 600; }
.what-is__sidebar { display: flex; flex-direction: column; gap: 1.25rem; }
.stat-card {
  background: var(--white); border: 1px solid var(--cloud); border-radius: 12px;
  padding: 1.5rem; transition: all 0.25s;
}
.stat-card:hover { border-color: var(--gold); box-shadow: 0 4px 20px rgba(200,148,62,0.08); }
.stat-card__number {
  font-family: var(--serif); font-size: 2.2rem; color: var(--gold);
  line-height: 1; margin-bottom: 0.35rem;
}
.stat-card__label { font-size: 0.85rem; color: var(--ash); font-weight: 500; }

/* ══════════════════════════════════════
   FRAMEWORK
   ══════════════════════════════════════ */
.framework__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
  margin-top: 3.5rem;
}
.framework__card {
  background: var(--white); border: 1px solid var(--cloud);
  border-radius: 14px; padding: 2rem; position: relative;
  overflow: hidden; transition: all 0.3s ease;
}
.framework__card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--gold), var(--teal));
  opacity: 0; transition: opacity 0.3s;
}
.framework__card:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(11,18,21,0.06); border-color: transparent; }
.framework__card:hover::before { opacity: 1; }
.framework__step {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--fog); margin-bottom: 1rem;
}
.framework__card h3 {
  font-family: var(--serif); font-size: 1.35rem; color: var(--ink);
  margin-bottom: 0.75rem;
}
.framework__card p { font-size: 0.9rem; color: var(--ash); line-height: 1.65; }

/* ══════════════════════════════════════
   DISCIPLINES
   ══════════════════════════════════════ */
.disciplines { background: var(--ink); color: var(--white); position: relative; overflow: hidden; }
.disciplines::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 50% 50% at 10% 90%, rgba(200,148,62,0.08) 0%, transparent 50%),
    radial-gradient(ellipse 40% 40% at 90% 10%, rgba(42,157,143,0.06) 0%, transparent 50%);
}
.disciplines .section__eyebrow { color: var(--gold-light); }
.disciplines .section__title { color: var(--white); }
.disciplines .section__sub { color: var(--fog); }
.disciplines__grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem;
  margin-top: 3.5rem; position: relative; z-index: 1;
}
.discipline__card {
  border: 1px solid rgba(255,255,255,0.08); border-radius: 14px;
  padding: 2rem; background: rgba(255,255,255,0.02);
  backdrop-filter: blur(10px); transition: all 0.3s;
}
.discipline__card:hover { background: rgba(255,255,255,0.05); border-color: rgba(200,148,62,0.3); }
.discipline__icon {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.25rem; font-size: 1.2rem;
}
.discipline__icon--tco { background: rgba(200,148,62,0.15); color: var(--gold-light); }
.discipline__icon--roi { background: rgba(42,157,143,0.15); color: var(--teal); }
.discipline__icon--bc { background: rgba(200,148,62,0.15); color: var(--gold-light); }
.discipline__icon--risk { background: rgba(42,157,143,0.15); color: var(--teal); }
.discipline__card h3 { font-family: var(--serif); font-size: 1.25rem; margin-bottom: 0.6rem; }
.discipline__card p { font-size: 0.88rem; color: var(--fog); line-height: 1.65; }
.discipline__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1rem; }
.discipline__tag {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.05em;
  padding: 0.3rem 0.7rem; border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.1); color: var(--fog);
}

/* ══════════════════════════════════════
   RESOURCES
   ══════════════════════════════════════ */
.resources__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
  margin-top: 3.5rem;
}
.resource__card {
  border: 1px solid var(--cloud); border-radius: 14px;
  overflow: hidden; transition: all 0.3s; background: var(--white);
}
.resource__card:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(11,18,21,0.06); }
.resource__thumb {
  height: 180px; display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-size: 2.5rem; color: var(--white);
}
.resource__thumb--blue { background: linear-gradient(135deg, var(--slate) 0%, var(--steel) 100%); }
.resource__thumb--gold { background: linear-gradient(135deg, var(--gold) 0%, #a87830 100%); }
.resource__thumb--teal { background: linear-gradient(135deg, var(--teal) 0%, #1e7a6f 100%); }
.resource__body { padding: 1.5rem; }
.resource__type {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 0.5rem;
}
.resource__card h3 { font-size: 1.05rem; color: var(--ink); margin-bottom: 0.5rem; font-weight: 600; }
.resource__card p { font-size: 0.85rem; color: var(--ash); line-height: 1.6; }

/* ══════════════════════════════════════
   JOURNAL
   ══════════════════════════════════════ */
.journal { background: var(--paper); border-top: 1px solid var(--cloud); border-bottom: 1px solid var(--cloud); }
.journal__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
  margin-top: 3.5rem;
}
.journal__card {
  display: grid; grid-template-columns: 140px 1fr; gap: 0;
  background: var(--white); border: 1px solid var(--cloud); border-radius: 14px;
  overflow: hidden; transition: all 0.3s; text-decoration: none; color: inherit;
}
.journal__card:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(11,18,21,0.06); border-color: transparent; }
.journal__card:hover .journal__accent { opacity: 0.9; }
.journal__accent {
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--white); writing-mode: vertical-rl;
  text-orientation: mixed; transition: opacity 0.3s;
}
.journal__accent--analysis { background: linear-gradient(180deg, var(--slate) 0%, var(--steel) 100%); }
.journal__accent--methodology { background: linear-gradient(180deg, var(--gold) 0%, #a87830 100%); }
.journal__accent--strategy { background: linear-gradient(180deg, var(--teal) 0%, #1e7a6f 100%); }
.journal__accent--perspective { background: linear-gradient(180deg, var(--ink) 0%, var(--slate) 100%); }
.journal__content { padding: 1.75rem; }
.journal__meta {
  display: flex; align-items: center; gap: 1rem; margin-bottom: 0.75rem;
}
.journal__category {
  font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--gold); font-weight: 500;
}
.journal__date { font-size: 0.75rem; color: var(--fog); }
.journal__card h3 {
  font-family: var(--serif); font-size: 1.2rem; color: var(--ink);
  margin-bottom: 0.6rem; line-height: 1.3;
}
.journal__card p { font-size: 0.85rem; color: var(--ash); line-height: 1.6; }
.journal__readmore {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.05em;
  color: var(--gold); margin-top: 1rem; display: inline-flex;
  align-items: center; gap: 0.4rem; transition: gap 0.2s;
}
.journal__card:hover .journal__readmore { gap: 0.7rem; }
.journal__featured {
  grid-column: 1 / -1;
  display: grid; grid-template-columns: 200px 1fr; gap: 0;
}
.journal__featured .journal__content { padding: 2.25rem; }
.journal__featured h3 { font-size: 1.4rem; }
.journal__featured p { font-size: 0.9rem; }

/* ══════════════════════════════════════
   NEWSLETTER
   ══════════════════════════════════════ */
.newsletter {
  background: var(--paper); border-top: 1px solid var(--cloud);
  border-bottom: 1px solid var(--cloud);
}
.newsletter__inner {
  text-align: center; max-width: 580px; margin: 0 auto;
}
.newsletter__inner .section__sub { margin: 0 auto 2rem; }
.newsletter__form {
  display: flex; gap: 0.75rem; max-width: 460px; margin: 0 auto;
}
.newsletter__input {
  flex: 1; padding: 0.875rem 1.25rem; border: 1.5px solid var(--cloud);
  border-radius: 8px; font-size: 0.9rem; font-family: var(--sans);
  background: var(--white); color: var(--ink); outline: none;
  transition: border-color 0.2s;
}
.newsletter__input:focus { border-color: var(--gold); }
.newsletter__input::placeholder { color: var(--fog); }
.newsletter__note { font-size: 0.78rem; color: var(--fog); margin-top: 1rem; }

/* ══════════════════════════════════════
   FOOTER
   ══════════════════════════════════════ */
.footer {
  padding: 60px 0 40px; background: var(--ink); color: var(--fog);
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem;
  margin-bottom: 3rem;
}
.footer__brand {
  font-family: var(--serif); font-size: 1.15rem; color: var(--white);
  margin-bottom: 0.75rem;
}
.footer__brand span { color: var(--gold-light); }
.footer__desc { font-size: 0.85rem; line-height: 1.65; max-width: 300px; }
.footer h4 {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ash); margin-bottom: 1rem;
}
.footer ul { list-style: none; }
.footer li { margin-bottom: 0.6rem; }
.footer a { color: var(--fog); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer a:hover { color: var(--gold-light); }
.footer__bar {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 2rem; display: flex; justify-content: space-between;
  align-items: center; font-size: 0.78rem;
}

/* ══════════════════════════════════════
   SINGLE POST / PAGE
   ══════════════════════════════════════ */
.page-header {
  padding: 160px 0 60px;
  background: linear-gradient(180deg, var(--white) 0%, var(--paper) 100%);
  text-align: center;
}
.page-header h1 {
  font-family: var(--serif); font-size: clamp(2.2rem, 4vw, 3.2rem);
  color: var(--ink); line-height: 1.15; margin-bottom: 1rem;
}
.page-header__meta {
  font-size: 0.85rem; color: var(--ash);
  display: flex; align-items: center; justify-content: center; gap: 1.5rem;
}
.page-header__category {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--gold); font-weight: 500;
}
.post-content {
  padding: 60px 0 100px;
}
.post-content .container--narrow p {
  color: var(--steel); font-size: 1.05rem; margin-bottom: 1.5rem; line-height: 1.8;
}
.post-content .container--narrow h2 {
  font-family: var(--serif); font-size: 1.8rem; color: var(--ink);
  margin: 2.5rem 0 1rem;
}
.post-content .container--narrow h3 {
  font-family: var(--serif); font-size: 1.4rem; color: var(--ink);
  margin: 2rem 0 0.75rem;
}
.post-content .container--narrow blockquote {
  border-left: 3px solid var(--gold); padding: 1rem 1.5rem;
  margin: 2rem 0; background: var(--gold-dim); border-radius: 0 8px 8px 0;
  font-style: italic; color: var(--steel);
}
.post-content .container--narrow ul,
.post-content .container--narrow ol {
  margin: 1rem 0 1.5rem 1.5rem; color: var(--steel);
}
.post-content .container--narrow li { margin-bottom: 0.5rem; }
.post-content .container--narrow img {
  max-width: 100%; height: auto; border-radius: 12px; margin: 2rem 0;
}

/* ══════════════════════════════════════
   ANIMATIONS
   ══════════════════════════════════════ */
.fade-up {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }

/* ══════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════ */
@media (max-width: 1024px) {
  .what-is__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .framework__grid { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .journal__featured { grid-template-columns: 160px 1fr; }
}
@media (max-width: 768px) {
  section { padding: 70px 0; }
  .nav__links { display: none; }
  .nav__mobile { display: block; }
  .framework__grid { grid-template-columns: 1fr; }
  .disciplines__grid { grid-template-columns: 1fr; }
  .resources__grid { grid-template-columns: 1fr; }
  .journal__grid { grid-template-columns: 1fr; }
  .journal__card { grid-template-columns: 80px 1fr; }
  .journal__featured { grid-template-columns: 80px 1fr; }
  .newsletter__form { flex-direction: column; }
  .footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer__bar { flex-direction: column; gap: 1rem; text-align: center; }
  .hero__diagram { max-width: 340px; }
  .hero__visual { margin-top: 2.5rem; }
  .diagram__node { font-size: 0.7rem; padding: 0.7rem 0.9rem; }
  .diagram__center { width: 85px; height: 85px; font-size: 0.85rem; }
  .diagram__center span { font-size: 0.55rem; }
}