/* 
  M&G Design System - Midnight Ember 
  Premium Dark Mode for Executive Consultancy
*/

:root {
  /* Colors */
  --mg-midnight: #0A0F1E;
  --mg-surface: #141B2D;
  --mg-surface-bright: #1E293B;
  --mg-ember: #FF4D2D;
  --mg-ember-glow: rgba(255, 77, 45, 0.4);
  --mg-on-surface: #E2E8F0;
  --mg-on-surface-variant: #94A3B8;
  --mg-border: rgba(255, 255, 255, 0.08);
  --mg-brand-blue: #0B1E6F;
  --mg-brand-charcoal: #3E3C3C;
  --mg-brand-muted: #6B6A6A;
  
  /* Glassmorphism */
  --mg-glass-bg: rgba(10, 15, 30, 0.75);
  --mg-glass-border: rgba(255, 255, 255, 0.08);
  
  /* Motion */
  --mg-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --mg-transition-gentle: all 0.4s var(--mg-spring);
}

/* Base Overrides */
body {
  background-color: var(--mg-midnight);
  color: var(--mg-on-surface);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--mg-midnight);
}
::-webkit-scrollbar-thumb {
  background: var(--mg-surface-bright);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--mg-ember);
}

/* Premium Components */
.mg-card {
  background: var(--mg-surface);
  border: 1px solid var(--mg-border);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--mg-transition-gentle);
}

.mg-card:hover {
  border-color: var(--mg-ember);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px -10px var(--mg-ember-glow);
}

.mg-btn-primary {
  background-color: var(--mg-ember);
  color: #FFFFFF;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: var(--mg-transition-gentle);
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px; /* HIG Requirement */
}

.mg-btn-primary:hover {
  background-color: #E64326;
  box-shadow: 0 0 20px var(--mg-ember-glow);
  transform: scale(1.02);
}

.mg-btn-primary:active {
  transform: scale(0.96);
}

.mg-glass-header {
  background: var(--mg-glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--mg-glass-border);
}

/* Mobile Bottom Navigation */
.mg-mobile-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(64px + env(safe-area-inset-bottom));
  background: var(--mg-glass-bg);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-top: 1px solid var(--mg-glass-border);
  display: flex;
  justify-content: space-around;
  align-items: flex-start;
  padding-top: 12px;
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom);
}

.mg-mobile-nav-item {
  display: flex;
  flex-col: items-center;
  gap: 4px;
  color: var(--mg-on-surface-variant);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--mg-transition-gentle);
}

.mg-mobile-nav-item.active {
  color: var(--mg-ember);
}

.mg-mobile-nav-item:active {
  transform: scale(0.9);
}

/* Typography Scale */
.mg-h1 {
  font-family: 'Newsreader', serif;
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.mg-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-weight: 700;
  color: var(--mg-ember);
}