/* ========================================
   Island Reach Madagascar - Global Styles
   ======================================== */

/* 1. CSS Variables */
:root {
  /* Colors - Primary */
  --color-primary: #0b5f84;
  --color-primary-light: #2f8fb8;
  --color-primary-dark: #083e5a;

  /* Colors - Secondary */
  --color-secondary: #f28a2c;
  --color-secondary-light: #ffad52;

  /* Colors - Neutral */
  --color-dark: #1f2f3a;
  --color-gray: #6f7f89;
  --color-gray-light: #c7d2d9;
  --color-light: #eef4f7;
  --color-white: #ffffff;

  /* Colors - Utility */
  --color-success: #2f8f41;
  --color-error: #c62828;
  --color-warning: #f5a623;
  --color-info: #2d89b8;

  /* Colors - Madagascar Palette */
  --color-mg-green: #2f8f41;
  --color-mg-red: #c62828;
  --color-ocean-deep: #083e5a;
  --color-ocean-mid: #0b5f84;
  --color-ocean-foam: #d4edf8;
  --color-sunset-orange: #f28a2c;
  --color-sunset-gold: #ffbe55;

  /* Theme Variants (fallback defaults) */
  --hero-theme-gradient: linear-gradient(130deg, rgba(8, 62, 90, 0.92) 0%, rgba(11, 95, 132, 0.9) 46%, rgba(47, 143, 65, 0.72) 100%);
  --hero-photo-layer: none;
  --join-us-bg:
    radial-gradient(900px circle at 12% -20%, rgba(47, 143, 65, 0.17), transparent 52%),
    radial-gradient(900px circle at 102% -10%, rgba(11, 95, 132, 0.2), transparent 56%),
    linear-gradient(145deg, rgba(245, 251, 255, 0.98) 0%, rgba(224, 241, 250, 0.92) 52%, rgba(233, 246, 239, 0.9) 100%);
  --join-us-overlay: linear-gradient(145deg, rgba(255, 255, 255, 0.32) 0%, rgba(8, 62, 90, 0.12) 100%);
  --donate-section-bg: linear-gradient(135deg, rgba(8, 62, 90, 0.70) 0%, rgba(11, 95, 132, 0.65) 54%, rgba(47, 143, 65, 0.60) 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;

  /* Typographie */
  --font-family-sans: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-family-serif: 'Georgia', serif;

  /* Font Sizes */
  --font-size-h1: 2.5rem;
  --font-size-h2: 2rem;
  --font-size-h3: 1.5rem;
  --font-size-h4: 1.25rem;
  --font-size-body: 1rem;
  --font-size-small: 0.875rem;
  --font-size-tiny: 0.75rem;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

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

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;

  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1100;
  --z-fixed: 1200;
  --z-modal: 1300;
}

/* 2. Reset / Normalize */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-body);
  line-height: var(--line-height-normal);
  color: var(--color-dark);
  background:
    radial-gradient(1100px circle at -8% -15%, rgba(47, 143, 65, 0.16), transparent 48%),
    radial-gradient(900px circle at 108% 6%, rgba(198, 40, 40, 0.14), transparent 44%),
    linear-gradient(180deg, #f7fbfe 0%, #edf6fb 46%, #fff8ef 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/*
  Theme switcher:
  - Default health-oriented style: theme-institutional
  - Alternate warm style: theme-cinematic
*/
body.theme-institutional {
  --hero-theme-gradient: linear-gradient(130deg, rgba(8, 62, 90, 0.92) 0%, rgba(11, 95, 132, 0.9) 46%, rgba(47, 143, 65, 0.72) 100%);
  --join-us-bg:
    radial-gradient(900px circle at 12% -20%, rgba(47, 143, 65, 0.17), transparent 52%),
    radial-gradient(900px circle at 102% -10%, rgba(11, 95, 132, 0.2), transparent 56%),
    linear-gradient(145deg, rgba(245, 251, 255, 0.98) 0%, rgba(224, 241, 250, 0.92) 52%, rgba(233, 246, 239, 0.9) 100%);
  --join-us-overlay: linear-gradient(145deg, rgba(255, 255, 255, 0.32) 0%, rgba(8, 62, 90, 0.12) 100%);
  --donate-section-bg: linear-gradient(135deg, rgba(8, 62, 90, 0.70) 0%, rgba(11, 95, 132, 0.65) 54%, rgba(47, 143, 65, 0.60) 100%);
}

body.theme-cinematic {
  --hero-theme-gradient: linear-gradient(128deg, rgba(8, 62, 90, 0.84) 0%, rgba(242, 138, 44, 0.82) 56%, rgba(198, 40, 40, 0.72) 100%);
  --join-us-bg:
    radial-gradient(960px circle at -12% -15%, rgba(255, 190, 85, 0.22), transparent 52%),
    radial-gradient(760px circle at 112% 8%, rgba(198, 40, 40, 0.16), transparent 56%),
    linear-gradient(145deg, rgba(255, 246, 233, 0.96) 0%, rgba(255, 230, 194, 0.9) 52%, rgba(255, 243, 227, 0.9) 100%);
  --join-us-overlay: linear-gradient(145deg, rgba(255, 255, 255, 0.18) 0%, rgba(198, 40, 40, 0.18) 100%);
  --donate-section-bg: linear-gradient(135deg, rgba(8, 62, 90, 0.75) 0%, rgba(11, 95, 132, 0.70) 32%, rgba(242, 138, 44, 0.65) 68%, rgba(198, 40, 40, 0.70) 100%);
}

/* Optional ocean image layer for backgrounds */
body.bg-ocean-on {
  --hero-photo-layer: url('../assets/images/madagascar/madagascar-22.jpg');
}

body.bg-ocean-off {
  --hero-photo-layer: none;
}

/* 3. Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
  color: var(--color-dark);
}

h1 {
  font-size: var(--font-size-h1);
}

h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-h3);
}

h4 {
  font-size: var(--font-size-h4);
}

p {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-normal);
}

p:last-child {
  margin-bottom: 0;
}

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

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

strong {
  font-weight: 600;
}

em {
  font-style: italic;
}

/* 4. Lists */
ul, ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-sm);
}

/* 5. Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 6. Forms */
form {
  margin-bottom: var(--spacing-lg);
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* 7. Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

main {
  flex: 1;
}

/* 8. Sections */
section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

section:nth-child(even) {
  background-color: transparent;
}

/* 9. Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-body);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-ocean-mid) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  box-shadow: 0 8px 18px rgba(11, 95, 132, 0.22);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  box-shadow: 0 12px 24px rgba(11, 95, 132, 0.28);
  transform: translateY(-1px);
}

.btn--secondary {
  background: linear-gradient(135deg, var(--color-sunset-orange) 0%, var(--color-sunset-gold) 100%);
  color: var(--color-white);
  box-shadow: 0 8px 18px rgba(242, 138, 44, 0.24);
}

.btn--secondary:hover {
  background: linear-gradient(135deg, var(--color-secondary-light) 0%, #ffc56d 100%);
  box-shadow: 0 12px 24px rgba(242, 138, 44, 0.3);
  transform: translateY(-1px);
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(47, 143, 65, 0.22);
}

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

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

/* 10. Cards */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.card img {
  width: 100%;
  height: auto;
}

.card__content {
  padding: var(--spacing-lg);
}

.card__title {
  margin-bottom: var(--spacing-md);
  color: var(--color-dark);
}

/* 11. Utility Classes */
.text-center {
  text-align: center;
}

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

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

.text-muted {
  color: var(--color-gray);
}

.text-primary {
  color: var(--color-primary);
}

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

.text-success {
  color: var(--color-success);
}

.text-error {
  color: var(--color-error);
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

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

.pt-xs { padding-top: var(--spacing-xs); }
.pt-sm { padding-top: var(--spacing-sm); }
.pt-md { padding-top: var(--spacing-md); }
.pt-lg { padding-top: var(--spacing-lg); }
.pt-xl { padding-top: var(--spacing-xl); }

.pb-xs { padding-bottom: var(--spacing-xs); }
.pb-sm { padding-bottom: var(--spacing-sm); }
.pb-md { padding-bottom: var(--spacing-md); }
.pb-lg { padding-bottom: var(--spacing-lg); }
.pb-xl { padding-bottom: var(--spacing-xl); }

/* 12. Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(26, 95, 122, 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(26, 95, 122, 0.6);
  }
}

.fade-in {
  animation: fadeIn var(--transition-slow) ease-in-out;
}

.slide-in-up {
  animation: slideInUp var(--transition-slow) ease-in-out;
}

.slide-in-down {
  animation: slideInDown var(--transition-slow) ease-in-out;
}

.slide-in-left {
  animation: slideInLeft var(--transition-slow) ease-in-out;
}

.slide-in-right {
  animation: slideInRight var(--transition-slow) ease-in-out;
}

.bounce {
  animation: bounce var(--transition-base) infinite;
}

/* 13. Flex Utilities */
.flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.flex-center {
  align-items: center;
  justify-content: center;
}

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

/* 14. Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* Responsive for mobile */
@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* 15. Print Media */
@media print {
  body {
    background-color: white;
    color: black;
  }

  a {
    text-decoration: underline;
  }

  .no-print {
    display: none;
  }
}