/* ============================================================================
   STRANGE HORTICULTURE - BASE CSS
   A dark, mysterious, and elegant foundation for a narrative puzzle game site
   ============================================================================ */

/* ============================================================================
   CSS VARIABLES
   ============================================================================ */

:root {
  /* Colors - Dark, mysterious palette inspired by deep greens and grays */
  --color-background: #0d1410;
  --color-background-elevated: #1a231d;
  --color-background-card: #1f2e26;
  --color-background-hover: #243329;
  
  --color-text-primary: #e8f0ed;
  --color-text-secondary: #b8c9c1;
  --color-text-tertiary: #8a9d94;
  --color-text-muted: #5a6b63;
  
  --color-primary: #4a7c59;
  --color-primary-light: #5d9670;
  --color-primary-dark: #3a6347;
  --color-primary-glow: rgba(74, 124, 89, 0.3);
  
  --color-accent: #6b9d7f;
  --color-accent-light: #7fb095;
  
  --color-success: #5a8f6a;
  --color-warning: #8f8a5a;
  --color-danger: #8f5a5a;
  
  /* Neutral grays with green undertones */
  --color-gray-50: #f5f7f6;
  --color-gray-100: #e8ebe9;
  --color-gray-200: #d1d7d4;
  --color-gray-300: #b0b9b5;
  --color-gray-400: #8a9490;
  --color-gray-500: #6a756f;
  --color-gray-600: #515a56;
  --color-gray-700: #3d4542;
  --color-gray-800: #2a302d;
  --color-gray-900: #1a1f1c;
  
  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-family-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-family-mono: 'Fira Code', 'Courier New', monospace;
  
  --font-size-xs: 0.75rem;      /* 12px */
  --font-size-sm: 0.875rem;     /* 14px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-lg: 1.125rem;     /* 18px */
  --font-size-xl: 1.25rem;      /* 20px */
  --font-size-2xl: 1.5rem;      /* 24px */
  --font-size-3xl: 1.875rem;    /* 30px */
  --font-size-4xl: 2.25rem;     /* 36px */
  --font-size-5xl: 3rem;        /* 48px */
  --font-size-6xl: 3.75rem;     /* 60px */
  
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  --line-height-loose: 2;
  
  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;
  
  /* Spacing scale */
  --space-0: 0;
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  
  /* Border radius */
  --radius-sm: 0.25rem;   /* 4px */
  --radius-base: 0.5rem;  /* 8px */
  --radius-md: 0.75rem;   /* 12px */
  --radius-lg: 1rem;      /* 16px */
  --radius-xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;
  
  /* Shadows - Subtle and mysterious */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-base: 0 4px 6px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.5), 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.6), 0 10px 10px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.7), 0 12px 20px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--color-primary-glow), 0 0 40px rgba(74, 124, 89, 0.15);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.4);
  
  /* Transitions */
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 350ms;
  --duration-slower: 500ms;
  
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-elegant: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  
  /* Z-index scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-popover: 600;
  --z-tooltip: 700;
  
  /* Borders */
  --border-width: 1px;
  --border-width-thick: 2px;
  --border-color: rgba(107, 157, 127, 0.15);
  --border-color-light: rgba(107, 157, 127, 0.08);
  --border-color-strong: rgba(107, 157, 127, 0.25);
  
  /* Overlays */
  --overlay-light: rgba(13, 20, 16, 0.6);
  --overlay-medium: rgba(13, 20, 16, 0.8);
  --overlay-heavy: rgba(13, 20, 16, 0.95);
}

/* ============================================================================
   RESET & NORMALIZE
   ============================================================================ */

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

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* ============================================================================
   BASE STYLES
   ============================================================================ */

body {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  background-image: 
    radial-gradient(circle at 20% 50%, rgba(74, 124, 89, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(74, 124, 89, 0.02) 0%, transparent 50%);
  background-attachment: fixed;
}

/* Typography */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--font-size-5xl);
  margin-bottom: var(--space-6);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

h2 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-5);
}

h3 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-4);
}

h4 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-4);
}

h5 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

h6 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-3);
  font-weight: var(--font-weight-bold);
}

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--duration-base) var(--ease-elegant);
  position: relative;
}

a:hover {
  color: var(--color-accent-light);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

strong,
b {
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

em,
i {
  font-style: italic;
}

small {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

code,
pre {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
}

code {
  background-color: var(--color-background-elevated);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

pre {
  background-color: var(--color-background-elevated);
  padding: var(--space-4);
  border-radius: var(--radius-base);
  border: 1px solid var(--border-color);
  overflow-x: auto;
  line-height: var(--line-height-relaxed);
}

pre code {
  background: none;
  padding: 0;
  border: none;
  border-radius: 0;
}

blockquote {
  margin: var(--space-6) 0;
  padding-left: var(--space-6);
  border-left: 3px solid var(--color-primary);
  color: var(--color-text-secondary);
  font-style: italic;
}

hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: var(--space-8) 0;
  opacity: 0.5;
}

/* ============================================================================
   UTILITIES
   ============================================================================ */

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container-narrow {
  max-width: 960px;
}

.container-wide {
  max-width: 1440px;
}

.container-fluid {
  max-width: 100%;
}

@media (max-width: 768px) {
  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }
}

/* Flexbox utilities */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

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

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

.flex-wrap {
  flex-wrap: wrap;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

.items-start {
  align-items: flex-start;
}

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

.items-end {
  align-items: flex-end;
}

.items-stretch {
  align-items: stretch;
}

.justify-start {
  justify-content: flex-start;
}

.justify-center {
  justify-content: center;
}

.justify-end {
  justify-content: flex-end;
}

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

.flex-1 {
  flex: 1 1 0%;
}

.flex-auto {
  flex: 1 1 auto;
}

.flex-none {
  flex: none;
}

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid utilities */
.grid {
  display: grid;
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 1024px) {
  .grid-cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-cols-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .grid-cols-4,
  .grid-cols-3,
  .grid-cols-2 { 
    grid-template-columns: repeat(1, minmax(0, 1fr)); 
  }
}

/* Text utilities */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.text-3xl { font-size: var(--font-size-3xl); }

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

.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

/* Spacing utilities */
.m-0 { margin: var(--space-0); }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.my-auto { margin-top: auto; margin-bottom: auto; }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }

.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.py-12 { padding-top: var(--space-12); padding-bottom: var(--space-12); }

/* Display utilities */
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }
.hidden { display: none; }

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

.not-sr-only {
  position: static;
  width: auto;
  height: auto;
  padding: 0;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Opacity utilities */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* Position utilities */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Overlay utility */
.overlay {
  position: absolute;
  inset: 0;
  background-color: var(--overlay-medium);
  z-index: var(--z-base);
}

/* ============================================================================
   COMPONENTS
   ============================================================================ */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-elegant);
  user-select: none;
  background-color: var(--color-primary);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  background-color: var(--color-primary-light);
  box-shadow: var(--shadow-base);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
  box-shadow: var(--shadow-glow);
}

.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-secondary {
  background-color: var(--color-background-elevated);
  border-color: var(--border-color-strong);
  color: var(--color-text-primary);
}

.btn-secondary:hover {
  background-color: var(--color-background-hover);
  border-color: var(--color-primary);
}

.btn-ghost {
  background-color: transparent;
  box-shadow: none;
  color: var(--color-accent);
}

.btn-ghost:hover {
  background-color: var(--color-background-elevated);
  color: var(--color-accent-light);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* Form elements */
.input,
.textarea,
.select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background-elevated);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-base);
  transition: all var(--duration-base) var(--ease-elegant);
  box-shadow: var(--shadow-inner);
}

.input:hover,
.textarea:hover,
.select:hover {
  border-color: var(--border-color-strong);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-inner), 0 0 0 3px var(--color-primary-glow);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-text-muted);
}

.input:disabled,
.textarea:disabled,
.select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: var(--color-background-card);
}

.textarea {
  min-height: 120px;
  resize: vertical;
}

.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b9d7f' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right var(--space-3) center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: var(--space-10);
}

.label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-help {
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Card component */
.card {
  background-color: var(--color-background-card);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-base);
  transition: all var(--duration-base) var(--ease-elegant);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-color-strong);
  transform: translateY(-2px);
}

.card-elevated {
  background-color: var(--color-background-elevated);
  box-shadow: var(--shadow-lg);
}

.card-header {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: var(--border-width) solid var(--border-color-light);
}

.card-title {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
  margin-bottom: 0;
}

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

.card-footer {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: var(--border-width) solid var(--border-color-light);
}

.card-image {
  margin: calc(var(--space-6) * -1);
  margin-bottom: var(--space-6);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--duration-slow) var(--ease-elegant);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

/* Badge component */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
  border-radius: var(--radius-full);
  background-color: var(--color-primary);
  color: var(--color-text-primary);
}

.badge-secondary {
  background-color: var(--color-background-elevated);
  border: var(--border-width) solid var(--border-color);
}

.badge-success {
  background-color: var(--color-success);
}

.badge-warning {
  background-color: var(--color-warning);
}

.badge-danger {
  background-color: var(--color-danger);
}

/* Divider */
.divider {
  height: var(--border-width);
  background-color: var(--border-color);
  border: none;
  margin: var(--space-8) 0;
  opacity: 0.5;
}

.divider-vertical {
  width: var(--border-width);
  height: auto;
  align-self: stretch;
  margin: 0 var(--space-4);
}

/* Section */
.section {
  padding: var(--space-16) 0;
}

.section-sm {
  padding: var(--space-12) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

/* Hero section */
.hero {
  position: relative;
  min-height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) 0;
  background: linear-gradient(180deg, 
    var(--color-background) 0%, 
    var(--color-background-elevated) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 50% 50%, rgba(74, 124, 89, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  .card:hover,
  .btn:hover,
  .card:hover .card-image img {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --border-width: 2px;
    --border-color: var(--border-color-strong);
  }
  
  .btn,
  .card,
  .input,
  .textarea,
  .select {
    border-width: var(--border-width-thick);
  }
}

/* Dark mode adjustments (already dark, but for extra dark preference) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #080d0a;
    --color-background-elevated: #131a16;
  }
}

/* Print styles */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .btn,
  .no-print {
    display: none;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* ============================================================================
   RESPONSIVE UTILITIES
   ============================================================================ */

@media (max-width: 640px) {
  .hidden-mobile { display: none !important; }
}

@media (min-width: 641px) and (max-width: 1024px) {
  .hidden-tablet { display: none !important; }
}

@media (min-width: 1025px) {
  .hidden-desktop { display: none !important; }
}

/* ============================================================================
   ANIMATIONS
   ============================================================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

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

@keyframes glow {
  0%, 100% {
    box-shadow: var(--shadow-glow);
  }
  50% {
    box-shadow: 0 0 30px var(--color-primary-glow), 0 0 60px rgba(74, 124, 89, 0.2);
  }
}

.fade-in {
  animation: fadeIn var(--duration-slow) var(--ease-elegant);
}

.fade-in-up {
  animation: fadeInUp var(--duration-slow) var(--ease-elegant);
}

.fade-in-down {
  animation: fadeInDown var(--duration-slow) var(--ease-elegant);
}

/* ============================================================================
   END OF BASE CSS
   ============================================================================ */