/* ================================================
   CPalius CMF — Corporate Website Stylesheet
   Design Era: 2015-2018 Enterprise Flat Design
   Golden Ratio (phi = 1.618) Based Design System
   Author: CPalius Team
   ================================================ */

/* ---- Design Tokens ---- */
:root {
  /* Colors — derived from CPalius logo */
  --cp-primary: #4A7C9B;
  --cp-primary-dark: #3A6A87;
  --cp-primary-light: #5A8CAB;
  --cp-accent: #4AADE4;
  --cp-accent-hover: #3A9BD4;
  --cp-accent-light: #6ABDE8;
  --cp-steel: #8B9DAF;
  --cp-steel-light: #A8B5C4;
  --cp-dark: #1A2A3A;
  --cp-darker: #0D1B2A;
  --cp-darkest: #081420;
  --cp-light: #F0F2F5;
  --cp-lighter: #F7F8FA;
  --cp-white: #FFFFFF;
  --cp-gold: #C8A86E;
  --cp-gold-hover: #B89858;
  --cp-border: #D0D5DD;
  --cp-border-light: #E4E7EC;
  --cp-text: #2C3E50;
  --cp-text-secondary: #5A6B7D;
  --cp-text-muted: #8B9DAF;
  --cp-code-bg: #0A1628;
  --cp-success: #27AE60;
  --cp-danger: #C0392B;

  /* Golden Ratio Typography Scale */
  --fs-xs: 11px;
  --fs-sm: 13px;
  --fs-base: 15px;
  --fs-md: 17px;
  --fs-lg: 22px;
  --fs-xl: 28px;
  --fs-2xl: 36px;
  --fs-3xl: 46px;
  --fs-4xl: 58px;
  --fs-hero: 72px;

  /* Golden Ratio Spacing */
  --sp-xs: 10px;
  --sp-sm: 16px;
  --sp-md: 26px;
  --sp-lg: 42px;
  --sp-xl: 68px;
  --sp-2xl: 110px;
  --sp-3xl: 178px;

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 960px;
  --golden-major: 61.8%;
  --golden-minor: 38.2%;
  --navbar-h: 64px;

  /* Transitions */
  --tr-fast: 0.15s ease;
  --tr-base: 0.3s ease;
  --tr-slow: 0.5s ease;
}

/* ---- Reset & Base ---- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Roboto', 'Segoe UI', Arial, sans-serif;
  font-size: var(--fs-base);
  line-height: 1.618;
  color: var(--cp-text);
  background-color: var(--cp-white);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--tr-fast);
}

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

ul, ol {
  list-style: none;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto Condensed', 'Arial Narrow', Arial, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--cp-dark);
}

h1 { font-size: var(--fs-hero); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-2xl); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }

p {
  margin-bottom: var(--sp-sm);
  color: var(--cp-text-secondary);
}

.text-accent { color: var(--cp-accent); }
.text-gold { color: var(--cp-gold); }
.text-white { color: var(--cp-white); }
.text-steel { color: var(--cp-steel); }
.text-uppercase {
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* ---- Container & Layout ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--sp-md);
}

.container-narrow {
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--sp-md);
}

/* Golden Ratio Grid */
.grid-golden {
  display: flex;
  gap: var(--sp-lg);
}

.grid-golden-major {
  flex: 0 0 var(--golden-major);
  max-width: var(--golden-major);
}

.grid-golden-minor {
  flex: 0 0 var(--golden-minor);
  max-width: var(--golden-minor);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-md);
}

/* ---- Section Base ---- */
.section {
  padding: var(--sp-2xl) 0;
  position: relative;
}

.section-light {
  background: var(--cp-light);
}

.section-dark {
  background: var(--cp-dark);
  color: var(--cp-white);
}

.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5 {
  color: var(--cp-white);
}

.section-dark p {
  color: var(--cp-steel-light);
}

.section-darker {
  background: var(--cp-darker);
  color: var(--cp-white);
}

.section-darker h2,
.section-darker h3,
.section-darker h4 {
  color: var(--cp-white);
}

.section-darker p {
  color: var(--cp-steel-light);
}

/* Section Header */
.section-header {
  margin-bottom: var(--sp-xl);
}

.section-label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--cp-accent);
  margin-bottom: var(--sp-xs);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--cp-accent);
}

.section-dark .section-label,
.section-darker .section-label {
  color: var(--cp-accent-light);
  border-bottom-color: var(--cp-accent-light);
}

.section-title {
  font-size: var(--fs-3xl);
  margin-bottom: var(--sp-sm);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 68px;
  height: 3px;
  background: var(--cp-gold);
  margin-top: var(--sp-sm);
}

.section-dark .section-title::after,
.section-darker .section-title::after {
  background: var(--cp-accent);
}

.section-desc {
  font-size: var(--fs-md);
  max-width: 720px;
  color: var(--cp-text-secondary);
}

.section-dark .section-desc {
  color: var(--cp-steel-light);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--tr-base);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--cp-accent);
  color: var(--cp-white);
  border-color: var(--cp-accent);
}

.btn-primary:hover {
  background: var(--cp-accent-hover);
  border-color: var(--cp-accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--cp-white);
  border-color: rgba(255,255,255,0.5);
}

.btn-secondary:hover {
  border-color: var(--cp-white);
  background: rgba(255,255,255,0.08);
}

.btn-gold {
  background: var(--cp-gold);
  color: var(--cp-white);
  border-color: var(--cp-gold);
}

.btn-gold:hover {
  background: var(--cp-gold-hover);
  border-color: var(--cp-gold-hover);
}

.btn-outline {
  background: transparent;
  color: var(--cp-accent);
  border-color: var(--cp-accent);
}

.btn-outline:hover {
  background: var(--cp-accent);
  color: var(--cp-white);
}

/* ---- Badge ---- */
.badge {
  display: inline-block;
  padding: 5px 14px;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 1px solid rgba(255,255,255,0.25);
  color: rgba(255,255,255,0.7);
  margin: 4px;
  font-family: 'Roboto Condensed', Arial, sans-serif;
}

.badge-filled {
  background: rgba(74, 173, 228, 0.15);
  border-color: rgba(74, 173, 228, 0.3);
  color: var(--cp-accent-light);
}

/* ---- Cards ---- */
.card {
  background: var(--cp-white);
  border: 1px solid var(--cp-border-light);
  border-top: 3px solid var(--cp-accent);
  padding: var(--sp-lg);
  transition: all var(--tr-base);
}

.card:hover {
  border-top-color: var(--cp-gold);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}

.card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cp-light);
  color: var(--cp-accent);
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-md);
  border-left: 3px solid var(--cp-accent);
}

.card-title {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-xs);
  color: var(--cp-dark);
}

.card-text {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--cp-text-secondary);
}

/* Dark card variant */
.card-dark {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-top: 3px solid var(--cp-accent);
}

.card-dark:hover {
  background: rgba(255,255,255,0.07);
  border-top-color: var(--cp-gold);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.card-dark .card-icon {
  background: rgba(74, 173, 228, 0.1);
  border-left-color: var(--cp-accent);
}

.card-dark .card-title {
  color: var(--cp-white);
}

.card-dark .card-text {
  color: var(--cp-steel-light);
}

/* ---- Code Block ---- */
.code-block {
  background: var(--cp-code-bg);
  border-left: 3px solid var(--cp-accent);
  padding: var(--sp-md);
  overflow-x: auto;
  position: relative;
}

.code-block-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: var(--sp-sm);
  margin-bottom: var(--sp-sm);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--cp-steel);
}

.code-block pre {
  margin: 0;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.7;
  color: #C5D0DC;
  white-space: pre;
  overflow-x: auto;
}

.code-block .keyword { color: var(--cp-accent); }
.code-block .string { color: var(--cp-gold); }
.code-block .comment { color: #5A6B7D; font-style: italic; }
.code-block .function { color: #7EC8E3; }

/* ================================================
   NAVBAR
   ================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-h);
  background: rgba(13, 27, 42, 0.92);
  z-index: 1000;
  transition: all var(--tr-base);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.navbar.scrolled {
  background: rgba(13, 27, 42, 0.98);
  box-shadow: 0 2px 24px rgba(0,0,0,0.35);
  border-bottom-color: rgba(74, 173, 228, 0.15);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar-brand {
  display: flex;
  align-items: center;
}

.navbar-logo {
  height: 36px;
  width: auto;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 0;
}

.navbar-menu li a {
  display: block;
  padding: 0 18px;
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.65);
  line-height: var(--navbar-h);
  border-bottom: 2px solid transparent;
  transition: all var(--tr-fast);
}

.navbar-menu li a:hover,
.navbar-menu li a.active {
  color: var(--cp-white);
  border-bottom-color: var(--cp-accent);
}

.navbar-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--cp-white);
  font-size: 24px;
  padding: 6px 10px;
  cursor: pointer;
  line-height: 1;
}

/* ================================================
   HERO
   ================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, var(--cp-darkest) 0%, var(--cp-darker) 35%, var(--cp-dark) 70%, #1E3A52 100%);
  position: relative;
  overflow: hidden;
  padding-top: var(--navbar-h);
}

/* Geometric grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(74, 173, 228, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 173, 228, 0.035) 1px, transparent 1px);
  background-size: 68px 68px;
  pointer-events: none;
}

/* Diagonal accent line */
.hero::after {
  content: '';
  position: absolute;
  right: -200px;
  top: 0;
  width: 500px;
  height: 100%;
  background: linear-gradient(to right, transparent, rgba(74, 173, 228, 0.03));
  transform: skewX(-12deg);
  pointer-events: none;
}

.hero-grid {
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  flex: 1 1 auto;
  padding: var(--sp-xl) 0;
}

/* ================================================
   HERO VISUAL — LOGO SPOTLIGHT STAGE
   ================================================ */
.hero-visual {
  position: relative;
  z-index: 2;
  flex: 0 0 460px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-stage {
  position: relative;
  width: 440px;
  height: 440px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Soft ambient glow behind everything */
.hero-stage-glow {
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(74, 173, 228, 0.4) 0%, rgba(74, 173, 228, 0.14) 45%, transparent 72%);
  filter: blur(8px);
  animation: heroGlowPulse 4s ease-in-out infinite;
}

.hero-stage-glow-core {
  position: absolute;
  inset: 32%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.55) 0%, rgba(74, 173, 228, 0.35) 55%, transparent 75%);
  filter: blur(4px);
  animation: heroGlowPulse 3s ease-in-out infinite reverse;
}

@keyframes heroGlowPulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.12); }
}

/* Rotating rings like a product reveal pedestal */
.hero-stage-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(74, 173, 228, 0.25);
}

.ring-1 {
  inset: 2%;
  border-style: dashed;
  animation: heroRingSpin 26s linear infinite;
}

.ring-2 {
  inset: 12%;
  border-color: rgba(74, 173, 228, 0.4);
  animation: heroRingSpin 18s linear infinite reverse;
}

.ring-3 {
  inset: 21%;
  border-color: rgba(255, 255, 255, 0.18);
  border-style: dotted;
  animation: heroRingSpin 32s linear infinite;
}

@keyframes heroRingSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Orbiting light dots circling the logo like tracking spotlights */
.hero-stage-orbit {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  animation: heroRingSpin 7s linear infinite;
}

.hero-stage-orbit.orbit-reverse {
  inset: 17%;
  animation: heroRingSpin 11s linear infinite reverse;
}

.orbit-dot {
  position: absolute;
  top: -3px;
  left: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cp-accent-light);
  box-shadow: 0 0 12px 4px rgba(74, 173, 228, 0.9);
}

/* Ground glow the logo "sits" on */
.hero-stage-floor {
  position: absolute;
  bottom: 6%;
  left: 50%;
  width: 66%;
  height: 22px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(74, 173, 228, 0.55) 0%, transparent 70%);
  filter: blur(4px);
  animation: heroFloorPulse 4s ease-in-out infinite;
}

@keyframes heroFloorPulse {
  0%, 100% { opacity: 0.7; transform: translateX(-50%) scale(1); }
  50% { opacity: 1; transform: translateX(-50%) scale(1.12); }
}

.hero-stage-logo {
  position: relative;
  z-index: 3;
  width: 54%;
  max-width: 260px;
  filter: drop-shadow(0 0 22px rgba(74, 173, 228, 0.7)) drop-shadow(0 22px 34px rgba(0, 0, 0, 0.45));
  animation: heroLogoFloat 5s ease-in-out infinite;
}

@keyframes heroLogoFloat {
  0%, 100% { transform: translateY(0) scale(1); filter: drop-shadow(0 0 22px rgba(74, 173, 228, 0.7)) drop-shadow(0 22px 34px rgba(0, 0, 0, 0.45)); }
  50% { transform: translateY(-14px) scale(1.02); filter: drop-shadow(0 0 38px rgba(74, 173, 228, 0.95)) drop-shadow(0 32px 26px rgba(0, 0, 0, 0.35)); }
}

/* Sparkle particles */
.hero-spark {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cp-accent-light);
  box-shadow: 0 0 8px 2px rgba(74, 173, 228, 0.9);
  opacity: 0;
  animation: heroSparkTwinkle 3s ease-in-out infinite;
}

.spark-1 { top: 14%; left: 20%; animation-delay: 0s; }
.spark-2 { top: 24%; right: 12%; animation-delay: 0.8s; }
.spark-3 { bottom: 28%; left: 10%; animation-delay: 1.6s; }
.spark-4 { bottom: 18%; right: 18%; animation-delay: 2.3s; }
.spark-5 { top: 48%; left: 4%; animation-delay: 1.1s; width: 3px; height: 3px; }
.spark-6 { top: 44%; right: 2%; animation-delay: 1.9s; width: 3px; height: 3px; }

@keyframes heroSparkTwinkle {
  0%, 100% { opacity: 0; transform: scale(0.5); }
  50% { opacity: 1; transform: scale(1.4); }
}

@media (prefers-reduced-motion: reduce) {
  .hero-stage-glow,
  .hero-stage-glow-core,
  .hero-stage-ring,
  .hero-stage-orbit,
  .hero-stage-floor,
  .hero-stage-logo,
  .hero-spark {
    animation: none;
  }
}

.hero-label {
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--cp-accent);
  margin-bottom: var(--sp-md);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-label::before {
  content: '';
  display: block;
  width: 42px;
  height: 2px;
  background: var(--cp-accent);
}

.hero-title {
  font-size: var(--fs-hero);
  color: var(--cp-white);
  margin-bottom: var(--sp-sm);
  letter-spacing: -1px;
}

.hero-subtitle {
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-xl);
  font-weight: 400;
  color: var(--cp-steel-light);
  margin-bottom: var(--sp-md);
  line-height: 1.4;
}

.hero-desc {
  font-size: var(--fs-md);
  color: var(--cp-steel);
  max-width: 600px;
  margin-bottom: var(--sp-lg);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: var(--sp-sm);
  margin-bottom: var(--sp-lg);
  flex-wrap: wrap;
}

.hero-tech-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  padding-top: var(--sp-md);
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* ================================================
   ABOUT / PROBLEM-SOLUTION
   ================================================ */
.about-grid {
  display: flex;
  gap: var(--sp-xl);
  align-items: stretch;
}

.about-problem {
  flex: 0 0 var(--golden-minor);
  max-width: var(--golden-minor);
}

.about-solution {
  flex: 0 0 calc(var(--golden-major) - var(--sp-xl));
  max-width: calc(var(--golden-major) - var(--sp-xl));
}

.problem-card {
  background: var(--cp-lighter);
  border-left: 3px solid var(--cp-danger);
  padding: var(--sp-lg);
  height: 100%;
}

.problem-card h4 {
  color: var(--cp-danger);
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-md);
  display: flex;
  align-items: center;
  gap: 10px;
}

.problem-item {
  padding: var(--sp-sm) 0;
  border-bottom: 1px solid var(--cp-border-light);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.problem-item:last-child {
  border-bottom: none;
}

.problem-item i {
  color: var(--cp-danger);
  margin-top: 3px;
  flex-shrink: 0;
}

.problem-item strong {
  display: block;
  font-size: var(--fs-sm);
  color: var(--cp-dark);
  margin-bottom: 4px;
}

.problem-item p {
  font-size: var(--fs-sm);
  margin: 0;
  line-height: 1.6;
}

.solution-card {
  background: var(--cp-white);
  border-left: 3px solid var(--cp-success);
  border-top: none;
  padding: var(--sp-lg);
  height: 100%;
}

.solution-card h4 {
  color: var(--cp-success);
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-md);
  display: flex;
  align-items: center;
  gap: 10px;
}

.solution-item {
  padding: var(--sp-sm) 0;
  border-bottom: 1px solid var(--cp-border-light);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.solution-item:last-child {
  border-bottom: none;
}

.solution-item i {
  color: var(--cp-success);
  margin-top: 3px;
  flex-shrink: 0;
}

.solution-item strong {
  display: block;
  font-size: var(--fs-sm);
  color: var(--cp-dark);
  margin-bottom: 4px;
}

.solution-item p {
  font-size: var(--fs-sm);
  margin: 0;
  line-height: 1.6;
}

/* ================================================
   ARCHITECTURE
   ================================================ */
.arch-layout {
  display: flex;
  gap: var(--sp-xl);
  align-items: flex-start;
}

.arch-tree-wrapper {
  flex: 0 0 var(--golden-minor);
  max-width: var(--golden-minor);
}

.arch-cards-wrapper {
  flex: 1;
}

.folder-tree {
  background: var(--cp-code-bg);
  border-left: 3px solid var(--cp-accent);
  padding: var(--sp-lg);
}

.folder-tree-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: var(--sp-sm);
  margin-bottom: var(--sp-sm);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.folder-tree-header span {
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--cp-steel);
}

.folder-tree-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.folder-tree-dot.red { background: #FF5F57; }
.folder-tree-dot.yellow { background: #FEBC2E; }
.folder-tree-dot.green { background: #28C840; }

.folder-tree pre {
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 13px;
  line-height: 1.8;
  color: #C5D0DC;
  white-space: pre;
}

.folder-tree .folder-name {
  color: var(--cp-accent-light);
  font-weight: 700;
}

.folder-tree .folder-comment {
  color: #5A6B7D;
}

.arch-card {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-md);
  padding: var(--sp-md);
  border: 1px solid rgba(255,255,255,0.06);
  border-left: 3px solid var(--cp-accent);
  margin-bottom: var(--sp-sm);
  background: rgba(255,255,255,0.02);
  transition: all var(--tr-base);
}

.arch-card:hover {
  background: rgba(255,255,255,0.05);
  border-left-color: var(--cp-gold);
}

.arch-card-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 173, 228, 0.1);
  color: var(--cp-accent);
  font-size: var(--fs-lg);
}

.arch-card-content h5 {
  font-size: var(--fs-md);
  color: var(--cp-white);
  margin-bottom: 4px;
}

.arch-card-content p {
  font-size: var(--fs-sm);
  color: var(--cp-steel);
  margin: 0;
  line-height: 1.6;
}

.arch-card-content code {
  font-family: 'Consolas', monospace;
  font-size: var(--fs-xs);
  background: rgba(74, 173, 228, 0.1);
  color: var(--cp-accent-light);
  padding: 2px 6px;
}

/* ================================================
   CORE NEVER DIES — TIMELINE
   ================================================ */
.defense-timeline {
  position: relative;
  padding-left: 68px;
}

.defense-timeline::before {
  content: '';
  position: absolute;
  left: 26px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--cp-accent), var(--cp-primary), var(--cp-gold));
}

.defense-item {
  position: relative;
  margin-bottom: var(--sp-xl);
  padding: var(--sp-lg);
  background: var(--cp-white);
  border: 1px solid var(--cp-border-light);
  border-top: 3px solid var(--cp-accent);
  transition: all var(--tr-base);
}

.defense-item:hover {
  border-top-color: var(--cp-gold);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.defense-item:last-child {
  margin-bottom: 0;
}

.defense-number {
  position: absolute;
  left: -68px;
  top: var(--sp-lg);
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cp-accent);
  color: var(--cp-white);
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-xl);
  font-weight: 700;
  z-index: 2;
}

.defense-label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--cp-accent);
  margin-bottom: var(--sp-xs);
}

.defense-title {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-sm);
}

.defense-text {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--cp-text-secondary);
  margin-bottom: var(--sp-md);
}

.defense-text:last-child {
  margin-bottom: 0;
}

/* ================================================
   FEATURES GRID
   ================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}

.feature-card {
  padding: var(--sp-lg);
  border: 1px solid rgba(255,255,255,0.06);
  border-top: 3px solid var(--cp-accent);
  background: rgba(255,255,255,0.03);
  transition: all var(--tr-base);
}

.feature-card:hover {
  background: rgba(255,255,255,0.06);
  border-top-color: var(--cp-gold);
  transform: translateY(-2px);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 173, 228, 0.1);
  color: var(--cp-accent);
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-md);
  border-left: 3px solid var(--cp-accent);
}

.feature-card h4 {
  font-size: var(--fs-md);
  color: var(--cp-white);
  margin-bottom: var(--sp-xs);
}

.feature-card p {
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--cp-steel);
  margin: 0;
}

/* ================================================
   TECH STACK
   ================================================ */
.tech-bar {
  display: flex;
  justify-content: center;
  align-items: stretch;
  flex-wrap: wrap;
}

.tech-item {
  flex: 1;
  min-width: 180px;
  padding: var(--sp-lg) var(--sp-md);
  text-align: center;
  border-right: 1px solid var(--cp-border-light);
  transition: all var(--tr-base);
}

.tech-item:last-child {
  border-right: none;
}

.tech-item:hover {
  background: var(--cp-lighter);
}

.tech-item i {
  font-size: var(--fs-2xl);
  color: var(--cp-accent);
  display: block;
  margin-bottom: var(--sp-sm);
}

.tech-item h5 {
  font-size: var(--fs-md);
  margin-bottom: 4px;
}

.tech-item p {
  font-size: var(--fs-xs);
  color: var(--cp-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 0;
}

/* ================================================
   TWO-CLASS ENTITY
   ================================================ */
.entity-table-wrapper {
  overflow-x: auto;
  margin-bottom: var(--sp-lg);
}

.entity-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
}

.entity-table thead {
  background: var(--cp-dark);
}

.entity-table thead th {
  padding: var(--sp-sm) var(--sp-md);
  text-align: left;
  color: var(--cp-white);
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  border-bottom: 3px solid var(--cp-accent);
}

.entity-table tbody tr {
  border-bottom: 1px solid var(--cp-border-light);
  transition: background var(--tr-fast);
}

.entity-table tbody tr:nth-child(even) {
  background: var(--cp-lighter);
}

.entity-table tbody tr:hover {
  background: rgba(74, 173, 228, 0.05);
}

.entity-table td {
  padding: var(--sp-sm) var(--sp-md);
  vertical-align: top;
  line-height: 1.6;
}

.entity-table td:first-child {
  font-weight: 700;
  color: var(--cp-dark);
  white-space: nowrap;
}

.cp-resource-block {
  background: var(--cp-code-bg);
  border-left: 3px solid var(--cp-gold);
  padding: var(--sp-lg);
}

.cp-resource-block pre {
  font-family: 'Consolas', 'Monaco', monospace;
  font-size: 13px;
  line-height: 1.7;
  color: #C5D0DC;
  white-space: pre;
  overflow-x: auto;
  margin: 0;
}

/* ================================================
   SECURITY & PERFORMANCE
   ================================================ */
.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-md);
}

.security-card {
  padding: var(--sp-lg);
  background: var(--cp-white);
  border: 1px solid var(--cp-border-light);
  border-top: 3px solid var(--cp-primary);
  transition: all var(--tr-base);
}

.security-card:hover {
  border-top-color: var(--cp-accent);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

.security-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cp-light);
  color: var(--cp-primary);
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-md);
  border-left: 3px solid var(--cp-primary);
}

.security-card h4 {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-xs);
}

.security-card p {
  font-size: var(--fs-sm);
  line-height: 1.7;
  margin-bottom: var(--sp-sm);
}

.security-card p:last-child {
  margin-bottom: 0;
}

.security-card .code-inline {
  font-family: 'Consolas', monospace;
  font-size: var(--fs-xs);
  background: var(--cp-light);
  padding: 2px 8px;
  color: var(--cp-primary-dark);
  border: 1px solid var(--cp-border-light);
}

/* ================================================
   ROADMAP
   ================================================ */
.roadmap-timeline {
  display: flex;
  position: relative;
  padding-top: var(--sp-lg);
}

.roadmap-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--cp-accent), var(--cp-primary), var(--cp-gold));
}

.roadmap-item {
  flex: 1;
  padding: 0 var(--sp-sm);
  position: relative;
}

.roadmap-item::before {
  content: '';
  position: absolute;
  top: calc(-1 * var(--sp-lg) - 1px);
  left: 50%;
  transform: translateX(-50%);
  width: 14px;
  height: 14px;
  background: var(--cp-accent);
  border: 3px solid var(--cp-dark);
}

.roadmap-phase {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--cp-accent-light);
  margin-bottom: var(--sp-xs);
}

.roadmap-item h4 {
  font-size: var(--fs-md);
  color: var(--cp-white);
  margin-bottom: var(--sp-xs);
}

.roadmap-item p {
  font-size: var(--fs-sm);
  color: var(--cp-steel);
  line-height: 1.6;
  margin: 0;
}

/* ================================================
   STATS BAR
   ================================================ */
.stats-bar {
  display: flex;
  justify-content: center;
  align-items: center;
}

.stat-item {
  flex: 1;
  text-align: center;
  padding: var(--sp-lg) var(--sp-md);
  border-right: 1px solid rgba(255,255,255,0.08);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: 'Roboto Condensed', Arial, sans-serif;
  font-size: var(--fs-4xl);
  font-weight: 700;
  color: var(--cp-accent);
  line-height: 1;
  margin-bottom: var(--sp-xs);
}

.stat-label {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--cp-steel);
  font-weight: 700;
}

/* ================================================
   FOOTER
   ================================================ */
.footer {
  background: var(--cp-darkest);
  border-top: 3px solid var(--cp-accent);
  padding: var(--sp-xl) 0 var(--sp-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: var(--golden-major) auto auto;
  gap: var(--sp-xl);
  padding-bottom: var(--sp-lg);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: var(--sp-lg);
}

.footer-brand-text {
  font-size: var(--fs-sm);
  color: var(--cp-steel);
  line-height: 1.7;
  margin-top: var(--sp-sm);
  max-width: 480px;
}

.footer-logo {
  height: 32px;
  width: auto;
}

.footer h5 {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--cp-white);
  margin-bottom: var(--sp-md);
  padding-bottom: var(--sp-xs);
  border-bottom: 2px solid var(--cp-accent);
  display: inline-block;
}

.footer-links li {
  margin-bottom: var(--sp-xs);
}

.footer-links a {
  font-size: var(--fs-sm);
  color: var(--cp-steel);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--tr-fast);
}

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

.footer-links a i {
  font-size: var(--fs-sm);
  width: 18px;
  text-align: center;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  font-size: var(--fs-xs);
  color: var(--cp-steel);
  margin: 0;
}

.footer-bottom a {
  color: var(--cp-accent);
}

.footer-bottom a:hover {
  color: var(--cp-accent-light);
}

/* ================================================
   SCROLL ANIMATIONS
   ================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* ================================================
   RESPONSIVE
   ================================================ */

/* Tablet & below */
@media (max-width: 1024px) {
  :root {
    --fs-hero: 52px;
    --fs-3xl: 36px;
    --fs-2xl: 28px;
    --sp-2xl: 80px;
  }

  .grid-golden,
  .about-grid,
  .arch-layout {
    flex-direction: column;
  }

  .grid-golden-major,
  .grid-golden-minor,
  .about-problem,
  .about-solution,
  .arch-tree-wrapper {
    flex: none;
    max-width: 100%;
  }

  .features-grid,
  .security-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .roadmap-timeline {
    flex-direction: column;
    padding-left: var(--sp-lg);
    padding-top: 0;
  }

  .roadmap-timeline::before {
    width: 3px;
    height: 100%;
    top: 0;
    left: 0;
    right: auto;
  }

  .roadmap-item {
    padding: var(--sp-md) 0 var(--sp-md) var(--sp-md);
    margin-bottom: var(--sp-sm);
  }

  .roadmap-item::before {
    top: var(--sp-md);
    left: -6px;
    transform: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-lg);
  }

  .stats-bar {
    flex-wrap: wrap;
  }

  .stat-item {
    flex: 0 0 50%;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

  .stat-item:nth-child(odd) {
    border-right: 1px solid rgba(255,255,255,0.08);
  }

  .stat-item:nth-child(even) {
    border-right: none;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --fs-hero: 40px;
    --fs-3xl: 28px;
    --fs-2xl: 24px;
    --fs-xl: 22px;
    --sp-2xl: 68px;
    --sp-xl: 50px;
    --navbar-h: 56px;
  }

  .hero-grid {
    flex-direction: column;
    text-align: center;
  }

  .hero-visual {
    flex: 0 0 auto;
    order: -1;
  }

  .hero-stage {
    width: 260px;
    height: 260px;
  }

  .navbar-menu {
    display: none;
    position: absolute;
    top: var(--navbar-h);
    left: 0;
    right: 0;
    background: var(--cp-darker);
    flex-direction: column;
    border-top: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  }

  .navbar-menu.open {
    display: flex;
  }

  .navbar-menu li a {
    line-height: 48px;
    padding: 0 var(--sp-md);
    border-bottom: 1px solid rgba(255,255,255,0.04);
    border-left: 2px solid transparent;
  }

  .navbar-menu li a:hover,
  .navbar-menu li a.active {
    border-bottom-color: rgba(255,255,255,0.04);
    border-left-color: var(--cp-accent);
    background: rgba(255,255,255,0.03);
  }

  .navbar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    justify-content: center;
  }

  .features-grid,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .tech-bar {
    flex-direction: column;
  }

  .tech-item {
    border-right: none;
    border-bottom: 1px solid var(--cp-border-light);
    padding: var(--sp-md);
    display: flex;
    align-items: center;
    gap: var(--sp-md);
    text-align: left;
  }

  .tech-item i {
    margin-bottom: 0;
    font-size: var(--fs-xl);
  }

  .defense-timeline {
    padding-left: 52px;
  }

  .defense-timeline::before {
    left: 18px;
  }

  .defense-number {
    left: -52px;
    width: 38px;
    height: 38px;
    font-size: var(--fs-lg);
  }

  .entity-table {
    font-size: var(--fs-xs);
  }

  .entity-table thead th,
  .entity-table td {
    padding: var(--sp-xs) var(--sp-sm);
  }

  .stats-bar {
    flex-direction: column;
  }

  .stat-item {
    flex: none;
    border-right: none !important;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: var(--sp-md);
  }

  .stat-number {
    font-size: var(--fs-3xl);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--sp-xs);
    text-align: center;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  :root {
    --fs-hero: 32px;
    --fs-3xl: 24px;
    --sp-2xl: 50px;
  }

  .container {
    padding: 0 var(--sp-sm);
  }

  .hero-label {
    font-size: 10px;
    letter-spacing: 2px;
  }

  .hero-label::before {
    width: 24px;
  }
}