/**
 * We've Got Rhythm - Core Global Styles
 * Design system tokens, typography defaults, and navigation animations.
 */

:root {
  /* Brand Color Tokens */
  --color-primary: #9f0f18;
  --color-primary-container: #c22d2d;
  --color-on-primary: #ffffff;
  --color-primary-fixed-dim: #ffb3ad;
  --color-secondary: #665c5c;
  --color-secondary-container: #eddfdf;
  --color-background: #fff8f5;
  --color-surface: #fff8f5;
  --color-surface-container-low: #fff1e8;
  --color-surface-container: #ffeadb;
  --color-on-surface: #2e1500;
  --color-on-surface-variant: #5a403e;
  --color-outline: #8e706d;
  --color-outline-variant: #e2beba;

  /* Typography */
  --font-serif: 'Noto Serif', Georgia, serif;
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-label: 'Manrope', sans-serif;
}

/* Base Accessibility & Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Offset for fixed top navigation bar (approx 80px) */
[id] {
  scroll-margin-top: 80px;
}

/* Specific section anchors that need slightly more breathing room */
[id="donate"],
[id="partner"],
[id="board"],
[id="mission"] {
  scroll-margin-top: 100px;
}

/* Google Material Symbols Font Settings */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ==========================================================================
   Mobile Navigation & Animated WGR Logo Hamburger (3D Flip)
   ========================================================================== */

#mobile-menu-toggle {
  perspective: 600px;
}

/* 3D Flip Face Mechanics */
.toggle-logo-icon,
.toggle-close-icon {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  transform-style: preserve-3d;
  backface-visibility: hidden;
}

.toggle-close-icon {
  transform: rotateY(180deg) scale(0.85);
  opacity: 0;
}

body.menu-open .toggle-logo-icon {
  transform: rotateY(180deg) scale(0.85);
  opacity: 0;
}

body.menu-open .toggle-close-icon {
  transform: rotateY(0deg) scale(1);
  opacity: 1;
}

/* Hero carousel responsive containment */
.hero-slide img {
  object-fit: cover;
}
@media (min-width: 1024px) {
  .hero-slide img {
    object-fit: cover;
  }
}

/* ==========================================================================
   Mobile Navigation Full-Page Drawer & Controls
   ========================================================================== */

#mobile-menu {
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: calc(100dvh - 68px);
  background-color: #ffffff;
  z-index: 45;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}

body.menu-open #mobile-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (min-width: 768px) {
  #mobile-menu {
    display: none !important;
  }
}

/* Decorative Musical Staff Line (Journey Page) */
.staff-line {
  height: 1px;
  background: linear-gradient(to right, transparent, #e2beba, transparent);
}