/* ============================================
   XENOVF — Style Tokens
   ============================================ */
:root {
  /* Colors */
  --bg: #0A0A0A;
  --text: #EFEFEF;
  --text-muted: #9A9A9A;
  --accent: #4A90E2;
  --accent-hover: #5A9FED;
  --border: rgba(239, 239, 239, 0.12);
  --border-hover: rgba(74, 144, 226, 0.4);

  /* Typography */
  --font-condensed: "Bebas Neue", "Impact", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-base: 24px;
  --space-large: 48px;
  --space-section: 80px;
  --container-max: 1100px;
  --form-max: 420px;

  /* Transitions */
  --ease: 0.3s ease;
  --ease-slow: 0.5s ease;
}

/* ============================================
   Reset & Base
   ============================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   Layout
   ============================================ */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-base);
}

.container-narrow {
  max-width: 720px;
}

.container-form {
  max-width: var(--form-max);
}

.section {
  padding: var(--space-section) 0;
}

.section-title {
  font-family: var(--font-condensed);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 400;
  letter-spacing: 0.04em;
  margin: 0 0 var(--space-large);
  color: var(--text);
}

/* ============================================
   7. Navigation Bar
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 14px 0;
  background: transparent;
  transition: background var(--ease), box-shadow var(--ease), padding var(--ease);
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.94);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border);
  padding: 12px 0;
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-base);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-base);
}

.nav-logo {
  font-family: var(--font-condensed);
  font-size: 1.4rem;
  letter-spacing: 0.14em;
  color: var(--text);
  text-decoration: none;
  transition: color var(--ease);
  flex-shrink: 0;
}

.nav-logo:hover {
  color: var(--accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-large);
}

.nav-links {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 28px;
}

.nav-links a {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  padding: 4px 0;
  transition: color var(--ease);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--ease);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after {
  width: 100%;
}

.nav-anthem {
  padding: 6px 14px;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: color var(--ease), border-color var(--ease);
  flex-shrink: 0;
}

.nav-anthem:hover {
  color: var(--accent);
  border-color: var(--border-hover);
}

/* Hamburger: hidden on desktop */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color var(--ease), background var(--ease);
}

.nav-toggle:hover {
  border-color: var(--border-hover);
}

.nav-toggle[aria-expanded="true"] {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.03);
}

.nav-toggle-bar {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-muted);
  transition: transform var(--ease), opacity var(--ease);
  margin: 0 auto;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 98;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--ease), visibility var(--ease);
}

.nav-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 769px) {
  .nav-overlay {
    display: none !important;
  }
}

@media (max-width: 768px) {
  .nav-overlay {
    display: block;
  }
}

/* ============================================
   1. Hero Section
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, var(--bg) 0%, #12121a 45%, #0e0e14 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--space-large);
}

.hero-headline {
  font-family: var(--font-condensed);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  line-height: 1.05;
  margin: 0 0 var(--space-base);
  color: var(--text);
}

.hero-subhead {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0;
}

.hero-cursor {
  position: fixed;
  width: 12px;
  height: 12px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 9999;
  opacity: 0;
  transition: opacity var(--ease), transform var(--ease);
}

.hero-cursor.visible {
  opacity: 0.6;
}

.hero-cursor.hover {
  transform: translate(-50%, -50%) scale(1.5);
  opacity: 0.9;
}

/* Anthem: bottom bar — plays while visitor browses */
.section-anthem {
  display: none;
}

.anthem-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(10, 10, 10, 0.96);
  backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
  transform: translateY(100%);
  visibility: hidden;
  transition: transform var(--ease-slow), visibility var(--ease-slow);
}

.anthem-bar.is-open {
  transform: translateY(0);
  visibility: visible;
}

.anthem-bar-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-base);
  display: flex;
  align-items: center;
  gap: var(--space-base);
  flex-wrap: wrap;
}

.anthem-bar .anthem-embed-wrap {
  flex-shrink: 0;
  width: 320px;
  height: 180px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.anthem-bar .anthem-embed-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.anthem-bar-label {
  flex: 1;
  min-width: 160px;
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.anthem-bar .anthem-close {
  position: static;
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: color var(--ease), border-color var(--ease);
  flex-shrink: 0;
}

.anthem-bar .anthem-close:hover {
  color: var(--text);
  border-color: var(--accent);
}

.anthem-embed-wrap {
  position: relative;
  width: 100%;
  height: 100%;
}

.anthem-embed-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

@media (max-width: 640px) {
  .anthem-bar .anthem-embed-wrap {
    width: 100%;
    max-width: 280px;
    height: 158px;
  }

  .anthem-bar-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .anthem-bar-label {
    text-align: center;
  }

  .anthem-bar .anthem-close {
    align-self: center;
  }
}

/* ============================================
   2. Milestones Timeline
   ============================================ */
.milestones {
  background: var(--bg);
}

.timeline {
  position: relative;
  padding-left: var(--space-large);
  border-left: 2px solid var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-large);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--ease-slow), transform var(--ease-slow);
}

.timeline-item.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-large) - 5px);
  top: 0.35em;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
}

.timeline-year {
  display: inline-block;
  font-family: var(--font-condensed);
  font-size: 1.25rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin-bottom: 4px;
}

.timeline-title {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--text);
}

.timeline-summary {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
  max-width: 560px;
}

/* ============================================
   3. Strategic Projects Grid
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-base);
}

.project-card {
  padding: var(--space-base);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
  opacity: 0;
  transform: translateY(16px);
}

.project-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.project-card:hover {
  transform: scale(1.02);
  border-color: var(--border-hover);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.project-title {
  font-family: var(--font-condensed);
  font-size: 1.35rem;
  letter-spacing: 0.03em;
  margin: 0 0 var(--space-base);
  color: var(--text);
}

.project-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 12px 0 4px;
}

.project-label:first-of-type {
  margin-top: 0;
}

.project-text {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: var(--space-base);
  padding-top: var(--space-base);
  border-top: 1px solid var(--border);
}

.project-meta-tag {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.project-meta-tag strong {
  color: var(--accent);
  font-weight: 600;
}

.project-artifact {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-base);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  transition: color var(--ease);
}

.project-artifact:hover {
  color: var(--accent-hover);
}

.project-artifact::before {
  content: "◇";
  font-size: 0.75rem;
}

/* ============================================
   Philosophy (Operational Ontology)
   ============================================ */
.philosophy-block {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--ease-slow), transform var(--ease-slow);
}

.philosophy-block.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.philosophy-axiom {
  font-size: 1.0625rem;
  color: var(--text);
  margin: 0 0 var(--space-base);
  line-height: 1.6;
  padding-left: 1em;
  border-left: 2px solid var(--accent);
}

.philosophy-axiom:last-child {
  margin-bottom: 0;
}

/* ============================================
   4. Insights / Thought Leadership
   ============================================ */
.insights-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-large);
}

.insight-item {
  padding-bottom: var(--space-large);
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--ease-slow), transform var(--ease-slow);
}

.insight-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.insight-item.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.insight-title {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0 0 var(--space-base);
  color: var(--text);
  line-height: 1.3;
}

.insight-excerpt {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0 0 var(--space-base);
  line-height: 1.65;
  max-width: 65ch;
}

.insight-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.insight-tags li {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 4px 10px;
  border: 1px solid var(--border-hover);
  background: rgba(74, 144, 226, 0.08);
}

/* ============================================
   5. Tools & Frameworks Library
   ============================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-base) var(--space-large);
}

.tools-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-base);
}

.tool-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-base);
  padding: var(--space-base);
  border: 1px solid transparent;
  transition: border-color var(--ease), background var(--ease);
  opacity: 0;
  transform: translateY(12px);
}

.tool-item.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.tool-item:hover {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.tool-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--accent);
  border: 1px solid var(--border);
  transition: color var(--ease), border-color var(--ease);
}

.tool-item:hover .tool-icon {
  color: var(--text);
  border-color: var(--accent);
}

.tool-content {
  min-width: 0;
}

.tool-name {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 4px;
  color: var(--text);
}

.tool-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
  transition: opacity var(--ease);
}

.tool-item .tool-desc {
  opacity: 0.85;
}

.tool-item:hover .tool-desc {
  opacity: 1;
}

/* ============================================
   6. Telegram Engagement
   ============================================ */
.connect-block {
  text-align: center;
  padding: var(--space-large) var(--space-base);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.connect-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.connect-link {
  display: inline-block;
  padding: 6px 14px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--border);
  text-decoration: none;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}

.connect-link:hover {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(74, 144, 226, 0.12);
}

/* ============================================
   7. Long-Term Intellectual Work / Books
   ============================================ */
.books .book-item {
  margin-bottom: var(--space-large);
  padding-bottom: var(--space-large);
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--ease-slow), transform var(--ease-slow);
}

.books .book-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.books .book-item.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.book-title {
  font-family: var(--font-condensed);
  font-size: 1.5rem;
  letter-spacing: 0.03em;
  margin: 0 0 var(--space-base);
  color: var(--text);
}

.book-tagline,
.book-intro {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin: 0 0 var(--space-base);
}

.book-summary {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
  max-width: 65ch;
}

.book-bullets {
  margin: 0;
  padding-left: 1.25em;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.book-bullets li {
  margin-bottom: var(--space-base);
}

.book-bullets li:last-child {
  margin-bottom: 0;
}

/* ============================================
   Footer (Legal & Terms)
   ============================================ */
.footer {
  padding: var(--space-large) 0;
  border-top: 1px solid var(--border);
}

.footer .container {
  position: relative;
}

.footer-anchor {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0, 0, 0, 0);
  overflow: hidden;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-base) var(--space-large);
  margin-bottom: var(--space-base);
}

.footer-legal a {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--ease);
}

.footer-legal a:hover {
  color: var(--accent);
}

.footer-text {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 0;
  text-align: center;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 900px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: 22px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-right {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(280px, 85vw);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 70px var(--space-base) var(--space-base);
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(14px);
    border-left: 1px solid var(--border);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.4);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--ease-slow), visibility var(--ease-slow);
    z-index: 99;
    gap: 0;
  }

  .nav-right.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-links {
    flex-direction: column;
    gap: 0;
    padding: 0;
  }

  .nav-links li {
    border-bottom: 1px solid var(--border);
  }

  .nav-links a {
    display: block;
    padding: 14px 0;
    font-size: 0.875rem;
  }

  .nav-anthem {
    margin-top: var(--space-base);
    align-self: flex-start;
  }
}

@media (max-width: 640px) {
  .hero-cursor {
    display: none;
  }
}