/* ============================================
   SYNAPSE CIRCUITS - Layout
   ============================================ */

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

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

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

/* ── Sections ── */
.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

.section-dark {
  background: var(--theme-bg-alt);
  position: relative;
  overflow: hidden;
}

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

.section-white {
  background: var(--theme-bg);
}

/* ── Grids ── */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.grid-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.flex-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xl);
}

.flex-grid > * {
  flex: 0 1 calc(33.333% - var(--space-xl) * 2 / 3);
  min-width: 280px;
}

@media (max-width: 768px) {
  .flex-grid > * {
    flex: 0 1 100%;
  }
}

/* ── Flex ── */
.flex {
  display: flex;
}

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

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

.flex-col {
  flex-direction: column;
}

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

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: var(--space-md) 0;
  transition: all var(--transition-base);
  background: transparent;
}

.nav.scrolled {
  background: var(--theme-nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--theme-nav-border);
  padding: var(--space-sm) 0;
  box-shadow: var(--theme-shadow);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  color: var(--color-accent-cyan);
}

.nav-logo-text {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: var(--fw-bold);
  color: var(--theme-text);
  letter-spacing: var(--ls-tight);
  transition: color var(--transition-slow);
}

.nav-logo-sub {
  font-size: var(--fs-xs);
  font-weight: var(--fw-regular);
  color: var(--theme-text-muted);
  opacity: 0.7;
  display: block;
  margin-top: -2px;
  letter-spacing: var(--ls-normal);
  transition: color var(--transition-slow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-link {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--theme-nav-link-color);
  transition: color var(--transition-base);
  position: relative;
  letter-spacing: 0.01em;
}

.nav-link:hover,
.nav-link.active {
  color: var(--theme-nav-link-hover);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--theme-nav-link-hover);
  transition: width var(--transition-base);
  border-radius: 1px;
}

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

.nav-cta {
  margin-left: var(--space-md);
}

/* Mobile menu button */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  z-index: calc(var(--z-nav) + 10);
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--theme-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.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);
}

/* ── Footer ── */
.footer {
  background: var(--theme-bg-alt);
  padding: var(--space-4xl) 0 var(--space-xl);
  position: relative;
  overflow: hidden;
  transition: background-color var(--transition-slow);
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-accent-cyan), var(--color-primary), transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer-brand p {
  margin-top: var(--space-md);
  font-size: var(--fs-small);
  color: var(--theme-text-muted);
  max-width: 320px;
  line-height: var(--lh-relaxed);
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  color: var(--theme-text);
  margin-bottom: var(--space-lg);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  font-size: var(--fs-small);
  color: var(--theme-text-muted);
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer-link:hover {
  color: var(--color-accent-cyan);
  transform: translateX(4px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(40, 212, 232, 0.08);
}

.footer-bottom p {
  font-size: var(--fs-xs);
  color: var(--theme-text-muted);
  opacity: 0.6;
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 114, 137, 0.05);
  color: var(--theme-text-muted);
  transition: all var(--transition-base);
  border: 1px solid var(--theme-border);
}

.footer-social a:hover {
  background: rgba(40, 212, 232, 0.1);
  color: var(--color-accent-cyan);
  border-color: rgba(40, 212, 232, 0.3);
  transform: translateY(-2px);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

/* ── Hero section ── */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  background: var(--theme-bg-alt);
  overflow: hidden;
  padding-top: 80px;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: var(--gradient-glow);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: var(--z-base);
  max-width: 750px;
}

.hero-badge {
  margin-bottom: var(--space-xl);
}

.hero h1 {
  font-size: var(--fs-hero);
  color: var(--theme-text);
  margin-bottom: var(--space-lg);
  letter-spacing: var(--ls-tight);
  line-height: 1.1;
}

.hero-sub {
  font-size: var(--fs-body-lg);
  color: var(--theme-text-muted);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-text-light);
  font-size: var(--fs-xs);
  opacity: 0.5;
  animation: float 2s ease-in-out infinite;
}

.hero-scroll-hint svg {
  width: 20px;
  height: 20px;
}

/* ── CTA section ── */
.cta-section {
  background: var(--theme-bg-alt);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse at center, rgba(10, 114, 137, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.cta-content {
  position: relative;
  z-index: var(--z-base);
}

.cta-content h2 {
  color: var(--theme-text);
  margin-bottom: var(--space-md);
}

.cta-content p {
  color: var(--theme-text-muted);
  font-size: var(--fs-body-lg);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-3xl) 0;
  }

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

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  /* Mobile nav */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background: var(--theme-nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px var(--space-2xl) var(--space-2xl);
    gap: var(--space-lg);
    transition: right var(--transition-slow);
    border-left: 1px solid var(--theme-nav-border);
  }

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

  .nav-toggle {
    display: flex;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: var(--space-md);
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding: 120px 0 80px;
  }

  .hero h1 {
    font-size: clamp(2rem, 6vw, 2.75rem);
  }

  .hero-scroll-hint {
    display: none;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

@media (max-width: 480px) {
  .hero-ctas {
    flex-direction: column;
  }

  .hero-ctas .btn {
    width: 100%;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }
}

/* ── Landing Page Canvas Background and Transparencies ── */
html {
  background-color: var(--theme-bg);
  transition: background-color var(--transition-slow);
}

.landing-page .circuit-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background-color: var(--canvas-bg);
  transition: background-color var(--transition-slow);
}

body.landing-page {
  background-color: transparent !important;
  color: var(--theme-text);
}

/* Make landing page sections transparent so the background and canvas show through */
body.landing-page .section,
body.landing-page .section-white,
body.landing-page .section-light,
body.landing-page .section-dark {
  background: transparent;
}

/* ── Interactive Team Morph Section ── */
.section-morph {
  position: relative;
  height: 300vh; /* scroll range */
  background: transparent;
}

.morph-sticky-container {
  position: relative;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: stretch;
  width: 100%;
  height: 100%;
}

.morph-visual-panel {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#morph-canvas {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  display: block;
}

.morph-text-panel {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.morph-text-block {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 var(--space-3xl) 0 var(--space-xl);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
  opacity: 0.2;
  transform: translateY(20px) scale(0.95);
}

.morph-text-block.active {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.morph-text-block h2 {
  font-size: var(--fs-h2);
  color: var(--theme-text);
  margin-bottom: var(--space-md);
  font-family: var(--font-heading);
}

.morph-text-block .lead {
  font-size: var(--fs-body-lg);
  font-weight: var(--fw-semibold);
  color: var(--theme-text);
  margin-bottom: var(--space-md);
  line-height: var(--lh-tight);
}

.morph-text-block p {
  color: var(--theme-text-muted);
  line-height: var(--lh-relaxed);
  font-size: 1.1rem;
}

/* ── Morph Responsive Stack ── */
@media (max-width: 1024px) {
  .morph-sticky-container {
    grid-template-columns: 1.1fr 0.9fr;
  }
  .morph-text-block {
    padding: 0 var(--space-xl) 0 var(--space-md);
  }
}

@media (max-width: 768px) {
  .section-morph {
    height: auto !important;
  }
  
  .morph-sticky-container {
    position: relative !important;
    height: auto !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: visible !important;
  }
  
  .morph-visual-panel {
    position: sticky !important;
    top: 60px !important; /* height of nav bar */
    height: 45vh !important;
    width: 100% !important;
    z-index: 10 !important;
    background: var(--theme-nav-bg) !important;
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    border-bottom: 1px solid var(--theme-border) !important;
  }
  
  #morph-canvas {
    height: 100% !important;
  }
  
  .morph-text-panel {
    width: 100% !important;
    position: relative !important;
    z-index: 11 !important;
    margin-top: 0 !important;
    padding-bottom: var(--space-2xl) !important;
  }
  
  .morph-text-block {
    height: auto !important;
    min-height: 50vh !important;
    padding: var(--space-2xl) var(--space-xl) !important;
    opacity: 0.25 !important;
    transform: scale(0.95) !important;
  }
  
  .morph-text-block.active {
    opacity: 1 !important;
    transform: scale(1) !important;
  }
}


/* ── Theme Transition Overlay & Toggle ── */
.theme-transition-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-color: var(--ripple-bg, var(--theme-bg));
  clip-path: circle(0% at var(--ripple-x, 50%) var(--ripple-y, 50%));
  transition: clip-path 0.75s cubic-bezier(0.19, 1, 0.22, 1);
}

.theme-transition-overlay.active {
  clip-path: circle(150vmax at var(--ripple-x, 50%) var(--ripple-y, 50%));
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-white);
  cursor: pointer;
  transition: all var(--transition-base);
  margin-left: auto;
  margin-right: var(--space-md);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  z-index: calc(var(--z-nav) + 5);
}

[data-theme="light"] .theme-toggle {
  background: rgba(10, 114, 137, 0.05);
  border: 1px solid rgba(10, 114, 137, 0.1);
  color: var(--color-primary);
}

.theme-toggle:hover {
  transform: scale(1.05);
  box-shadow: 0 0 10px rgba(40, 212, 232, 0.2);
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
}

[data-theme="light"] .theme-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 0 10px rgba(10, 114, 137, 0.15);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  position: absolute;
  transition: transform var(--transition-slow) cubic-bezier(0.34, 1.56, 0.64, 1), opacity var(--transition-base);
}

/* Rotation and scale shifts for icons */
[data-theme="dark"] .sun-icon {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}
[data-theme="dark"] .moon-icon {
  transform: rotate(90deg) scale(0);
  opacity: 0;
}
[data-theme="light"] .sun-icon {
  transform: rotate(-90deg) scale(0);
  opacity: 0;
}
[data-theme="light"] .moon-icon {
  transform: rotate(0deg) scale(1);
  opacity: 1;
}

@media (min-width: 769px) {
  .theme-toggle {
    margin-left: var(--space-lg);
    margin-right: 0;
  }
}