/* ============================================
   Helper's Compass - Nonprofit Website
   Warm, inviting design for disaster relief
   ============================================ */

/* CSS Variables */
:root {
  /* Colors - Warm, hopeful palette */
  --color-primary: #d97706;        /* Compass amber */
  --color-primary-dark: #b45309;   /* Darker amber */
  --color-secondary: #0d9488;      /* Trust teal */
  --color-secondary-dark: #0f766e; /* Darker teal */
  --color-warm: #fef3c7;           /* Warm cream */
  --color-warm-dark: #fde68a;      /* Warm gold */
  --color-dark: #1f2937;           /* Gray-800 */
  --color-dark-80: rgba(31, 41, 55, 0.8);
  --color-gray: #374151;           /* Gray-700 */
  --color-gray-light: #f9fafb;     /* Gray-50 */
  --color-white: #ffffff;
  --color-text: #374151;
  --color-text-light: #6b7280;

  /* Typography */
  --font-sans: 'Source Sans 3', system-ui, -apple-system, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Layout */
  --container-width: 1200px;
  --border-radius: 0.75rem;
  --transition: all 0.3s ease;
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-warm);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ============================================
   Layout
   ============================================ */

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xl) 0;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.4);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.5);
}

.btn-secondary {
  background: var(--color-secondary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.4);
}

.btn-secondary:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-2px);
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.03);
  transition: var(--transition);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.06);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(-25%);
    animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
  }
  50% {
    transform: translateY(0);
    animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
  }
}

.animate-bounce {
  animation: bounce 1s infinite;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }

  .hero {
    min-height: 90vh;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Utilities
   ============================================ */

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

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }

/* ============================================
   Mobile Menu Toggle
   ============================================ */

#mobile-menu {
  transition: max-height 0.3s ease-out;
}

#mobile-menu.hidden {
  display: none;
}