/* Design Tokens & Theme Colors */
:root {
  color-scheme: dark;
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --color-accent: hsl(142, 72%, 58%);
  --color-accent-rgb: 74, 222, 128;
  
  --bg-deep: hsl(220, 30%, 5%);
  --bg-panel: rgba(15, 23, 42, 0.45);
  --border-light: rgba(255, 255, 255, 0.08);
  --text-primary: hsl(210, 40%, 98%);
  --text-muted: hsl(215, 20%, 65%);
}

/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
}

/* Background Glow */
.ambient-glow {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120vmax;
  height: 120vmax;
  background: radial-gradient(
    circle,
    rgba(var(--color-accent-rgb), 0.05) 0%,
    rgba(15, 23, 42, 0) 70%
  );
  z-index: 0;
  pointer-events: none;
}

/* Layout Container */
.container {
  display: grid;
  grid-template-rows: auto 1fr;
  flex: 1;
  padding: 2.5rem;
  z-index: 1;
  position: relative;
  gap: 3rem;
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
}

/* App Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 1.5rem;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--color-accent);
  display: inline-block;
  animation: pulse 2s infinite ease-in-out;
}

.logo-text {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  color: var(--text-primary);
}

/* Main Content */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.about-header {
  text-align: center;
}

.about-header h1 {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.about-header p {
  font-size: 0.9rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* Manifesto Grid */
.manifesto-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.manifesto-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 2.25rem 2rem;
  backdrop-filter: blur(12px);
  position: relative;
  transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.manifesto-card:hover {
  border-color: rgba(var(--color-accent-rgb), 0.3);
  box-shadow: 
    0 8px 30px rgba(0, 0, 0, 0.3),
    0 0 20px rgba(var(--color-accent-rgb), 0.05);
  transform: translateY(-4px);
}

.manifesto-card.full-width {
  grid-column: span 2;
}

.section-num {
  font-family: var(--font-title);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  opacity: 0.85;
}

.manifesto-card h2 {
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}

.manifesto-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  font-weight: 300;
}

/* Actions Section */
.about-actions {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

.btn-back-home {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.10);
  padding: 0.9rem 1.8rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
  text-align: center;
  white-space: nowrap;
  box-shadow: 
    0 4px 12px rgba(0, 0, 0, 0.15),
    inset 0 1px 1px rgba(255, 255, 255, 0.05);
}

.btn-back-home:hover {
  border-color: var(--color-accent);
  background: rgba(var(--color-accent-rgb), 0.08);
  box-shadow: 
    0 4px 20px rgba(var(--color-accent-rgb), 0.2),
    inset 0 1px 1px rgba(255, 255, 255, 0.15);
  color: var(--color-accent);
  transform: translateY(-2px);
}

.btn-back-home:active {
  transform: translateY(0);
}

.footer-wrapper {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2.5rem;
  box-sizing: border-box;
  position: relative;
  z-index: 2;
}

/* Footer styling */
.app-footer {
  text-align: center;
  border-top: 1px solid var(--border-light);
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  line-height: 1.8;
  width: 100%;
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 0.5rem;
  transition: color 0.3s ease, text-shadow 0.3s ease;
  font-weight: 500;
  letter-spacing: 0.1em;
}

.footer-link:hover {
  color: var(--color-accent);
  text-shadow: 0 0 8px rgba(var(--color-accent-rgb), 0.5);
}

.texture-credit {
  margin-top: 0.35rem;
  font-size: 0.55rem;
  letter-spacing: 0;
  opacity: 0.6;
}

.texture-credit a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.texture-credit a:hover,
.texture-credit a:focus-visible {
  color: var(--color-accent);
}

/* Animations */
@keyframes pulse {
  0%, 100% {
    opacity: 0.4;
    transform: scale(0.9);
  }
  50% {
    opacity: 1;
    transform: scale(1.1);
  }
}

/* Responsive Overrides */
@media (max-width: 900px) {
  .manifesto-grid {
    grid-template-columns: 1fr;
  }
  .manifesto-card.full-width {
    grid-column: span 1;
  }
  .container {
    padding: 1.5rem;
    gap: 2rem;
  }
  .footer-wrapper {
    padding: 0 1.5rem;
  }
}

@media (max-width: 768px) {
  .app-header {
    justify-content: space-between;
    padding-bottom: 1.25rem;
  }
  .about-header h1 {
    font-size: 1.6rem;
  }
}