/* ===================================================================
   LEDGER-APP-APPLICATION.IO
   Unique Design Concept: Academic Silicon Whitepaper & Cryptographic Lab
   Palette: Matrix Teal (#0d9488 / #14b8a6 / #2dd4bf), Platinum, Obsidian
   100% Informational - No aggressive download CTAs
   =================================================================== */

:root {
  --bg-wp: #040808;
  --bg-card: rgba(8, 20, 18, 0.75);
  --bg-card-hover: rgba(12, 28, 25, 0.9);
  --border-teal: rgba(13, 148, 136, 0.35);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --accent-teal: #0d9488;
  --accent-mint: #2dd4bf;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-serif: 'Newsreader', serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  background: 
    radial-gradient(circle at 15% 15%, rgba(13, 148, 136, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 85% 25%, rgba(45, 212, 191, 0.08) 0%, transparent 45%),
    var(--bg-wp);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
}

.container {
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Journal Top Bar */
.journal-meta-bar {
  background: #020404;
  border-bottom: 1px solid rgba(13, 148, 136, 0.2);
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.journal-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
}
.meta-journal-info {
  display: flex;
  gap: 12px;
}
.meta-cert-badge {
  color: var(--accent-mint);
  font-weight: 700;
}

/* Journal Header */
.journal-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(4, 8, 8, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-teal);
}
.journal-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}
.journal-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-text-wrap {
  display: flex;
  flex-direction: column;
}
.brand-main {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  color: #fff;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-mint);
  letter-spacing: 0.08em;
}
.journal-links {
  display: flex;
  gap: 22px;
  list-style: none;
  font-size: 0.9rem;
  font-weight: 600;
}
.journal-links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.journal-links a:hover {
  color: var(--accent-mint);
}

.btn-teal {
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
  color: #fff;
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  border: 1px solid rgba(45, 212, 191, 0.4);
  box-shadow: 0 4px 18px rgba(13, 148, 136, 0.35);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
}
.btn-teal:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px rgba(13, 148, 136, 0.55);
}

/* ===================================================================
   EDITORIAL COVER & ABSTRACT HERO
   =================================================================== */
.journal-hero {
  padding: 70px 0 80px 0;
}
.editorial-cover {
  max-width: 980px;
  margin: 0 auto;
}
.doc-badge-pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-mint);
  background: rgba(13, 148, 136, 0.15);
  border: 1px solid var(--border-teal);
  padding: 6px 14px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 22px;
  letter-spacing: 0.05em;
}
.paper-title {
  font-family: var(--font-sans);
  font-size: clamp(2.4rem, 4.2vw, 3.6rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
  color: #fff;
}
.paper-authors {
  font-size: 0.95rem;
  color: #94a3b8;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 34px;
  font-family: var(--font-sans);
}
.paper-authors strong {
  color: #f1f5f9;
}

/* Academic Abstract Box */
.abstract-box {
  background: rgba(10, 24, 22, 0.85);
  border: 1px solid var(--border-teal);
  border-left: 4px solid var(--accent-mint);
  padding: 28px 32px;
  border-radius: 8px;
  margin-bottom: 48px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.abstract-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--accent-mint);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}
.abstract-text {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  line-height: 1.7;
  color: #e2e8f0;
  margin-bottom: 18px;
  font-style: italic;
}
.abstract-keywords {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #94a3b8;
}
.abstract-keywords span {
  color: var(--accent-mint);
  font-weight: 700;
}

/* Silicon Die Micrograph Card */
.micrograph-card {
  background: #000;
  border: 1px solid var(--border-teal);
  border-radius: 12px;
  padding: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.8), 0 0 45px rgba(13, 148, 136, 0.2);
}
.micrograph-header {
  display: flex;
  justify-content: space-between;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-mint);
}
.micrograph-card img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}
.die-callouts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 20px 14px 10px 14px;
}
.callout-item {
  background: rgba(13, 148, 136, 0.08);
  border: 1px solid rgba(13, 148, 136, 0.2);
  border-radius: 8px;
  padding: 14px 16px;
}
.callout-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-mint);
  display: block;
  margin-bottom: 4px;
}
.callout-item strong {
  font-size: 0.95rem;
  color: #fff;
  display: block;
  margin-bottom: 6px;
}
.callout-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

/* ===================================================================
   4-COLUMN PHYSICAL DEFENSE MATRIX
   =================================================================== */
.section-pad {
  padding: 90px 0;
}
.sec-heading-center {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 50px auto;
}
.sec-pill-teal {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-mint);
  background: rgba(13, 148, 136, 0.12);
  border: 1px solid var(--border-teal);
  padding: 4px 12px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 12px;
}
.sec-heading-center h2 {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.sec-heading-center p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.defense-4col-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.defense-col-card {
  background: var(--bg-card);
  border: 1px solid var(--border-teal);
  border-radius: 10px;
  padding: 28px 22px;
  transition: all 0.25s;
  display: flex;
  flex-direction: column;
}
.defense-col-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  border-color: var(--accent-mint);
}
.def-num {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent-mint);
  margin-bottom: 14px;
}
.defense-col-card h3 {
  font-size: 1.15rem;
  color: #fff;
  margin-bottom: 10px;
}
.defense-col-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
}
.defense-status-badge {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-mint);
  background: rgba(45, 212, 191, 0.12);
  padding: 4px 8px;
  border-radius: 4px;
  display: inline-block;
  align-self: flex-start;
}

/* ===================================================================
   BOLOS ARCHITECTURE SPECIFICATION
   =================================================================== */
.arch-spec-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-teal);
  border-radius: 12px;
  padding: 36px 32px;
}
.spec-column h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-mint);
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}
.spec-card-dark {
  background: #020404;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 14px;
}
.spec-card-dark strong { color: #f8fafc; font-size: 0.95rem; display: block; margin-bottom: 4px; }
.spec-card-dark p { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 0; }
.bus-arrow {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #2dd4bf;
  margin: 10px 0;
}
.spec-card-teal {
  background: rgba(13, 148, 136, 0.15);
  border: 1px solid var(--border-teal);
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 16px;
}
.spec-card-teal strong { color: #2dd4bf; font-size: 0.95rem; display: block; margin-bottom: 4px; }
.spec-card-teal p { color: #cbd5e1; font-size: 0.85rem; margin-bottom: 0; }
.sandboxed-apps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
.app-enclave {
  background: #020404;
  border: 1px solid rgba(45, 212, 191, 0.3);
  border-radius: 6px;
  padding: 10px 12px;
  text-align: center;
}
.app-enclave span { font-size: 0.8rem; font-weight: 700; color: #fff; display: block; }
.app-enclave small { font-size: 0.68rem; color: #94a3b8; display: block; }
.seed-vault-box {
  background: linear-gradient(135deg, rgba(13, 148, 136, 0.25), rgba(4, 8, 8, 0.8));
  border: 1px solid #2dd4bf;
  border-radius: 8px;
  padding: 14px 18px;
  text-align: center;
}
.seed-vault-box strong { font-family: var(--font-mono); font-size: 0.85rem; color: #2dd4bf; display: block; }
.seed-vault-box small { font-size: 0.75rem; color: #94a3b8; }

/* ===================================================================
   CERTIFICATIONS TABLE
   =================================================================== */
.cert-table-wrap {
  border: 1px solid var(--border-teal);
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-card);
}
.cert-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}
.cert-table thead {
  background: rgba(13, 148, 136, 0.18);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-mint);
}
.cert-table th, .cert-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}
.cert-pass {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #10b981;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 3px 8px;
  border-radius: 4px;
}

/* ===================================================================
   BIBTEX CITATION
   =================================================================== */
.bibtex-container {
  max-width: 820px;
  margin: 0 auto;
  background: #020404;
  border: 1px solid var(--border-teal);
  border-radius: 10px;
  overflow: hidden;
}
.bibtex-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 18px;
  background: rgba(13, 148, 136, 0.12);
  border-bottom: 1px solid var(--border-teal);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-mint);
}
.btn-copy-bib {
  background: rgba(45, 212, 191, 0.2);
  border: 1px solid var(--accent-mint);
  color: #2dd4bf;
  padding: 4px 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-copy-bib:hover {
  background: var(--accent-mint);
  color: #000;
}
.bibtex-container pre {
  padding: 22px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #cbd5e1;
  line-height: 1.6;
  overflow-x: auto;
}

/* Journal Footer */
.journal-footer {
  border-top: 1px solid var(--border-teal);
  padding: 60px 0 30px 0;
  background: #020404;
}
.journal-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  flex-wrap: wrap;
  gap: 20px;
}
.journal-footer-links {
  display: flex;
  gap: 20px;
}
.journal-footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
}
.journal-footer-links a:hover {
  color: var(--accent-mint);
}
.journal-copy {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: #64748b;
}

/* Academic Research Monograph Styling */
.academic-paper-container {
  max-width: 940px;
  margin: 0 auto;
  background: rgba(8, 20, 18, 0.7);
  border: 1px solid var(--border-teal);
  border-radius: 12px;
  padding: 50px 48px;
  box-shadow: 0 16px 50px rgba(0,0,0,0.6);
}
.paper-section-head {
  margin-bottom: 36px;
  border-bottom: 1px solid var(--border-teal);
  padding-bottom: 24px;
}
.paper-section-head h2 {
  font-size: 2.3rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 12px;
  color: #fff;
}
.paper-meta-byline {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.academic-text-body p {
  color: #e2e8f0;
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 22px;
}
.academic-text-body h3 {
  font-size: 1.45rem;
  color: var(--accent-mint);
  margin: 40px 0 18px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(13, 148, 136, 0.25);
}
.taxonomy-points {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 20px 0 28px 0;
}
.tax-item {
  background: rgba(4, 12, 11, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 20px 24px;
}
.tax-item h4 {
  font-size: 1.1rem;
  color: var(--accent-mint);
  margin-bottom: 8px;
}
.tax-item p {
  margin-bottom: 0;
  color: #cbd5e1;
  font-size: 0.95rem;
}
.academic-bullet-list {
  margin: 16px 0 26px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: #e2e8f0;
  font-size: 1rem;
  line-height: 1.7;
}
.academic-bullet-list strong {
  color: var(--accent-mint);
}

@media (max-width: 980px) {
  .die-callouts-grid { grid-template-columns: 1fr; }
  .defense-4col-grid { grid-template-columns: repeat(2, 1fr); }
  .arch-spec-box { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .defense-4col-grid { grid-template-columns: 1fr; }
}