/* PayForAid - Main Styles */

/* === CSS Variables === */
:root {
  /* Färger */
  --color-primary: #2563EB;
  --color-primary-dark: #1E40AF;
  --color-primary-light: #3B82F6;

  --color-secondary: #10B981;
  --color-secondary-dark: #059669;
  --color-secondary-light: #34D399;

  --color-accent: #F59E0B;
  --color-accent-dark: #D97706;
  --color-accent-light: #FBBF24;

  --color-neutral-50: #F9FAFB;
  --color-neutral-100: #F3F4F6;
  --color-neutral-200: #E5E7EB;
  --color-neutral-300: #D1D5DB;
  --color-neutral-400: #9CA3AF;
  --color-neutral-500: #6B7280;
  --color-neutral-600: #4B5563;
  --color-neutral-700: #374151;
  --color-neutral-800: #1F2937;
  --color-neutral-900: #111827;

  --color-white: #FFFFFF;
  --color-black: #000000;

  --color-success: #10B981;
  --color-error: #EF4444;
  --color-warning: #F59E0B;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-neutral-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-neutral-900);
  margin-bottom: var(--space-md);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.875rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-md);
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* === Layout === */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-wide {
  max-width: 1400px;
}

.container-narrow {
  max-width: 800px;
}

/* === Header & Navigation === */
.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo img {
  height: 40px;
  width: auto;
  transition: transform var(--transition-fast);
}

.nav-logo:hover img {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: var(--space-xl);
}

.nav-link {
  color: var(--color-neutral-700);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
  display: inline-block;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 24px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.25);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
  background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
  color: white;
}

.nav-cta-icon {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

.nav-profile {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-neutral-100);
  color: var(--color-neutral-600);
  transition: all var(--transition-fast);
}

.nav-profile svg {
  width: 20px;
  height: 20px;
}

.nav-profile:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.nav-profile.active {
  background: var(--color-primary);
  color: var(--color-white);
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

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

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

.btn-accent:hover {
  background-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

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

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-white);
}

.btn-danger:hover {
  background-color: #DC2626;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-white {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

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

.btn-large {
  padding: 12px 36px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.025em;
}

.btn-xlarge {
  padding: 16px 56px;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.025em;
}

/* === Hero Section === */
.hero {
  position: relative;
  color: var(--color-white);
  padding: var(--space-4xl) 0;
  text-align: center;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(37, 99, 235, 0.65);
  z-index: -1;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  opacity: 0;
  animation: fadeInUp 1s ease-out 3s forwards;
}

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

.hero h1 {
  color: var(--color-white);
  font-size: 4rem;
  margin-bottom: var(--space-lg);
  font-weight: 800;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.5rem;
  margin-bottom: var(--space-2xl);
  opacity: 0.95;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.hero-cta {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* === Section === */
.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--color-neutral-600);
  max-width: 700px;
  margin: 0 auto;
}

/* === Cards === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: var(--space-lg);
}

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

.card-text {
  color: var(--color-neutral-600);
  margin-bottom: var(--space-lg);
}

/* === Stats === */
.stats {
  background-color: var(--color-neutral-50);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-xl);
  text-align: center;
}

.stat-item {
  padding: var(--space-xl);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: 1.125rem;
  color: var(--color-neutral-600);
}

/* === Footer === */
.footer {
  background-color: var(--color-neutral-900);
  color: var(--color-neutral-300);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--space-lg);
}

.footer-link {
  color: var(--color-neutral-300);
  display: block;
  margin-bottom: var(--space-sm);
}

.footer-link:hover {
  color: var(--color-white);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-neutral-700);
  color: var(--color-neutral-400);
}

/* === Responsive === */
@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.875rem; }
  h3 { font-size: 1.5rem; }

  .hero {
    min-height: 80vh;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1.125rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .nav-menu {
    gap: var(--space-lg);
  }

  .section {
    padding: var(--space-3xl) 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  h1 { font-size: 1.875rem; }

  .hero {
    min-height: 70vh;
    padding: var(--space-2xl) 0;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .btn {
    width: 100%;
  }
}