/* ============================================
   XYRON — Style Sheet
   Inspired by Anthropic's minimal, clean aesthetic
   ============================================ */

/* --------------- CSS Variables --------------- */
:root {
  /* Colors */
  --color-primary: #0a0a23;
  --color-accent: #6C5CE7;
  --color-accent-light: #8B7CF7;
    --color-bg: #faf8f5;
  --color-bg-alt: #f2f0ed;
  --color-bg-dark: #0a0a23;
  --color-text: #1a1a2e;
  --color-text-light: #6b7280;
  --color-text-white: #ffffff;
  --color-border: #e5e2dc;
  --color-card-bg: #ffffff;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Spacing */
  --section-padding: 120px 0;
  --container-max: 1200px;
  --container-padding: 0 24px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.6s ease;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.1);
  --shadow-card: 0 2px 20px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 8px 30px rgba(108, 92, 231, 0.15);
}

/* --------------- Reset --------------- */
*,
*::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: var(--font-family);
  font-weight: var(--font-weight-regular);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* --------------- Container --------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-padding);
}

/* --------------- Navbar --------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background-color var(--transition-medium),
              box-shadow var(--transition-medium),
              padding var(--transition-medium);
}

.navbar.scrolled {
  background-color: rgba(250, 248, 245, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 10px rgba(0, 0, 0, 0.06);
  padding: 12px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 22px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 2px;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.navbar.scrolled .nav-logo {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  letter-spacing: 0.3px;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-medium);
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 8px 20px;
  border: 1.5px solid var(--color-accent);
  border-radius: 6px;
  color: var(--color-accent);
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-fast);
}

.nav-cta::after {
  display: none;
}

.nav-cta:hover {
  background-color: var(--color-accent);
  color: #fff;
}

/* Nav Toggle (Mobile) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --------------- Hero --------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #faf8f5 0%, #f0ede8 50%, #faf8f5 100%);
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-content {
  max-width: 800px;
  position: relative;
  z-index: 2;
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 32px;
}

.hero-brand {
  font-size: clamp(48px, 8vw, 96px);
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -3px;
  color: var(--color-primary);
  line-height: 1;
}

.hero-tagline {
  font-size: clamp(24px, 4vw, 48px);
  font-weight: var(--font-weight-light);
  color: var(--color-text-light);
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.hero-tagline.accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: var(--font-weight-medium);
}

.hero-desc {
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: 40px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* --------------- Buttons --------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-family: var(--font-family);
  font-size: 15px;
  font-weight: var(--font-weight-semibold);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  letter-spacing: 0.3px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
  border: 2px solid var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
}

/* --------------- Hero Shapes (Decorative) --------------- */
.hero-shapes {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.3;
}

.shape-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--color-accent-light) 0%, transparent 70%);
  top: -200px;
  right: -150px;
}

.shape-2 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.15) 0%, transparent 70%);
  bottom: -100px;
  right: 10%;
}

.shape-3 {
  width: 200px;
  height: 200px;
  border: 2px solid rgba(108, 92, 231, 0.1);
  top: 40%;
  left: -50px;
  animation: float 8s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-30px); }
}

/* --------------- Sections --------------- */
.section {
  padding: var(--section-padding);
}

.section-alt {
  background-color: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section-label.light {
  color: rgba(255, 255, 255, 0.7);
}

.section-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 20px;
}

.section-divider {
  width: 40px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: 2px;
  margin: 0 auto;
}

.section-divider.light {
  background-color: rgba(255, 255, 255, 0.5);
}

.section-subtitle {
  font-size: 18px;
  color: var(--color-text-light);
  margin-top: 24px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* --------------- Belief Section --------------- */
.belief-problem {
  max-width: 720px;
  margin: 0 auto 60px;
}

.belief-text {
  font-size: clamp(17px, 1.3vw, 20px);
  line-height: 1.9;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.belief-text strong {
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
}

.belief-text.emphasis {
  font-size: clamp(19px, 1.5vw, 22px);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  padding: 24px;
  background: linear-gradient(135deg, rgba(108, 92, 231, 0.06), rgba(108, 92, 231, 0.02));
  border-left: 3px solid var(--color-accent);
  border-radius: 0 8px 8px 0;
  margin-top: 32px;
}

.belief-divider {
  text-align: center;
  margin: 60px 0;
  position: relative;
}

.belief-divider::before,
.belief-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: calc(50% - 140px);
  height: 1px;
  background: var(--color-border);
}

.belief-divider::before { left: 0; }
.belief-divider::after { right: 0; }

.belief-turn {
  display: inline-block;
  font-size: 14px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-bg);
  padding: 0 24px;
}

.belief-future {
  max-width: 720px;
  margin: 0 auto;
}

.belief-list {
  list-style: none;
  margin-top: 24px;
}

.belief-list li {
  font-size: clamp(18px, 1.3vw, 22px);
  line-height: 1.8;
  color: var(--color-text);
  padding: 12px 0 12px 36px;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.belief-list li:last-child {
  border-bottom: none;
}

.belief-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: var(--font-weight-bold);
}

.belief-list li strong {
  color: var(--color-accent);
  font-weight: var(--font-weight-semibold);
}

/* --------------- Cards Grid (What We Do) --------------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 40px 32px;
  transition: all var(--transition-medium);
  cursor: default;
}

.card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
}

.card-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
  color: var(--color-accent);
}

.card-icon svg {
  width: 100%;
  height: 100%;
}

.card-title {
  font-size: 20px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: 12px;
}

.card-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
}

.cards-footnote {
  text-align: center;
  font-size: 17px;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

.cards-footnote strong {
  color: var(--color-accent);
}

/* --------------- Principles --------------- */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.principle-card {
  padding: 40px 32px;
  border-left: 3px solid var(--color-border);
  transition: all var(--transition-medium);
}

.principle-card:hover {
  border-left-color: var(--color-accent);
  padding-left: 40px;
}

.principle-number {
  font-size: 14px;
  font-weight: var(--font-weight-bold);
  color: var(--color-accent);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.principle-title {
  font-size: 22px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: 12px;
}

.principle-text {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-light);
}

/* --------------- Vision / Looking Ahead Section --------------- */
.section-vision {
  background-color: var(--color-bg-dark);
  color: var(--color-text-white);
  position: relative;
  overflow: hidden;
}

.section-vision::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.vision-content {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.vision-title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-white);
  letter-spacing: -1px;
  margin-bottom: 20px;
}

.vision-text {
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.65);
  max-width: 600px;
  margin: 0 auto 24px;
}

.vision-text.emphasis {
  font-size: 22px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: var(--font-weight-medium);
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* --------------- Contact / Looking Forward --------------- */
.contact-inner {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact-card {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: left;
}

.contact-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.contact-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.contact-label {
  font-size: 13px;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-text-light);
}

.contact-value {
  font-size: 16px;
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
}

.contact-value.link {
  color: var(--color-accent);
  transition: color var(--transition-fast);
}

.contact-value.link:hover {
  color: var(--color-accent-light);
  text-decoration: underline;
}

/* --------------- Footer --------------- */
.footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.6);
  padding: 48px 0;
}

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

.footer-logo {
  font-size: 18px;
  font-weight: var(--font-weight-bold);
  letter-spacing: 2px;
  color: #fff;
}

.footer-tagline {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 6px;
}

.footer-copyright p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* --------------- Scroll Animations (fade-up) --------------- */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--transition-slow),
              transform var(--transition-slow);
}

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

/* --------------- Responsive --------------- */

/* Tablet */
@media (max-width: 1024px) {
  .cards-grid {
    gap: 20px;
  }

  .card {
    padding: 32px 24px;
  }

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

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-padding: 80px 0;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
        background-color: #faf8f5;
    flex-direction: column;
    justify-content: center;
    gap: 24px;
    padding: 40px;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
    transition: right var(--transition-medium);
    z-index: 999;
  }

  .nav-links.open {
    right: 0;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }

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

  .principles-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .belief-divider::before,
  .belief-divider::after {
    width: calc(50% - 80px);
  }

  .principle-card {
    padding: 28px 24px;
  }

  .contact-card {
    padding: 28px 20px;
  }

  .footer-content {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .contact-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}



/* Small Mobile */
@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .card {
    padding: 28px 20px;
  }
}

/* --------------- Selection --------------- */
::selection {
  background-color: var(--color-accent);
  color: #fff;
}

/* --------------- Cursor Glow --------------- */
.cursor-glow {
  position: fixed;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.08) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* --------------- Scroll Progress Bar --------------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  z-index: 1001;
  transition: width 0.1s ease;
}

/* --------------- Click Particle --------------- */
.click-particle {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  animation: particleBurst 0.7s ease-out forwards;
}

@keyframes particleBurst {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(var(--dx), var(--dy)) scale(0);
  }
}

/* --------------- Card Tilt Refinement --------------- */
.card {
  transition: box-shadow var(--transition-medium),
              border-color var(--transition-medium);
  will-change: transform;
}

/* --------------- Principle Counter --------------- */
.principle-number {
  font-variant-numeric: tabular-nums;
}