/* ============================================
   DOPAMINE WAR — Design System
   Tactical. Dark. No mercy.
   ============================================ */

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

/* --- Custom Properties --- */
:root {
  /* Colors - Military/Tactical */
  --color-bg: #0a0a0b;
  --color-bg-elevated: #111113;
  --color-bg-card: #16161a;
  --color-border: #2a2a2e;
  --color-border-hover: #3a3a3e;
  
  /* Text */
  --color-text: #e8e8e8;
  --color-text-secondary: #8a8a8e;
  --color-text-muted: #5a5a5e;
  
  /* Threat Colors */
  --color-critical: #dc2626;
  --color-critical-glow: rgba(220, 38, 38, 0.2);
  --color-high: #f97316;
  --color-high-glow: rgba(249, 115, 22, 0.2);
  --color-moderate: #eab308;
  --color-moderate-glow: rgba(234, 179, 8, 0.2);
  --color-low: #22c55e;
  --color-low-glow: rgba(34, 197, 94, 0.2);
  --color-secure: #06b6d4;
  --color-secure-glow: rgba(6, 182, 212, 0.2);
  
  /* Accent */
  --color-accent: #dc2626;
  --color-accent-hover: #ef4444;
  --color-accent-muted: rgba(220, 38, 38, 0.15);
  
  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  
  /* Layout */
  --max-width: 800px;
  --max-width-narrow: 600px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
}

/* --- Base Styles --- */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

p {
  color: var(--color-text-secondary);
}

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

code, .mono {
  font-family: var(--font-mono);
}

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

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

/* --- Header --- */
.header {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.header__logo {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.header__nav {
  display: flex;
  gap: var(--space-lg);
}

.header__link {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.header__link:hover {
  color: var(--color-text);
}

.header__link--active {
  color: var(--color-text);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.btn--primary:hover {
  background: var(--color-accent-hover);
}

.btn--secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-elevated);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn--ghost:hover {
  color: var(--color-text);
}

.btn--large {
  font-size: 1rem;
  padding: 1rem 2rem;
}

.btn--full {
  width: 100%;
}

/* --- Cards --- */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition-fast);
}

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

.card--clickable {
  cursor: pointer;
}

.card--clickable:hover {
  border-color: var(--color-accent);
}

/* --- Threat Level Indicators --- */
.threat-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-sm);
}

.threat-badge--critical {
  background: var(--color-critical-glow);
  color: var(--color-critical);
  border: 1px solid var(--color-critical);
}

.threat-badge--high {
  background: var(--color-high-glow);
  color: var(--color-high);
  border: 1px solid var(--color-high);
}

.threat-badge--moderate {
  background: var(--color-moderate-glow);
  color: var(--color-moderate);
  border: 1px solid var(--color-moderate);
}

.threat-badge--low {
  background: var(--color-low-glow);
  color: var(--color-low);
  border: 1px solid var(--color-low);
}

.threat-badge--secure {
  background: var(--color-secure-glow);
  color: var(--color-secure);
  border: 1px solid var(--color-secure);
}

/* --- Progress Bar --- */
.progress {
  height: 8px;
  background: var(--color-bg-elevated);
  border-radius: 4px;
  overflow: hidden;
}

.progress__bar {
  height: 100%;
  border-radius: 4px;
  transition: width var(--transition-normal);
}

.progress__bar--critical { background: var(--color-critical); }
.progress__bar--high { background: var(--color-high); }
.progress__bar--moderate { background: var(--color-moderate); }
.progress__bar--low { background: var(--color-low); }
.progress__bar--secure { background: var(--color-secure); }

/* --- Form Elements --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.form-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* Radio/Checkbox Cards */
.option-grid {
  display: grid;
  gap: var(--space-sm);
}

.option-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.option-card:hover {
  border-color: var(--color-border-hover);
}

.option-card.selected {
  border-color: var(--color-accent);
  background: var(--color-accent-muted);
}

.option-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.option-card__indicator {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-radius: 50%;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.option-card.selected .option-card__indicator {
  border-color: var(--color-accent);
  background: var(--color-accent);
  box-shadow: inset 0 0 0 3px var(--color-bg-card);
}

.option-card__content {
  flex: 1;
}

.option-card__label {
  font-weight: 500;
  margin-bottom: 0.125rem;
}

.option-card__description {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* --- Section --- */
.section {
  padding: var(--space-2xl) 0;
}

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

.section__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.section__description {
  color: var(--color-text-secondary);
  max-width: 500px;
}

/* --- Footer --- */
.footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2xl);
}

.footer__text {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --- Utilities --- */
.text-center { text-align: center; }
.text-mono { font-family: var(--font-mono); }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-accent { color: var(--color-accent); }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.hidden { display: none !important; }

/* --- Animations --- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0; 
    transform: translateY(10px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

.animate-fade-in {
  animation: fadeIn 0.3s ease forwards;
}

.animate-slide-up {
  animation: slideUp 0.4s ease forwards;
}

/* --- Responsive --- */
@media (max-width: 640px) {
  :root {
    --space-lg: 1.25rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.25rem;
  }
  
  .header__nav {
    gap: var(--space-md);
  }
  
  .header__link {
    font-size: 0.8125rem;
  }
}