/**
 * ============================================================================
 * BASE CSS - Minecraft Sandbox Game Review Website
 * ============================================================================
 * A modern, pixelated, blocky design system inspired by Minecraft aesthetics
 * with earthy tones, vibrant accents, and user-friendly navigation.
 * ============================================================================
 */

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

:root {
  /* Color Palette - Earthy & Minecraft-inspired */
  --color-grass-green: #5cb85c;
  --color-forest-green: #2d5016;
  --color-dirt-brown: #8b6f47;
  --color-stone-gray: #7f7f7f;
  --color-cobblestone: #565656;
  --color-bedrock: #333333;
  --color-diamond-blue: #4fc3f7;
  --color-gold: #ffd700;
  --color-redstone: #dc3545;
  --color-emerald: #28a745;
  --color-obsidian: #1a1a1a;
  --color-snow: #ffffff;
  --color-sand: #e6d8b5;
  --color-wood: #9b7653;
  
  /* Semantic Colors */
  --color-background: #f5f1e8;
  --color-background-alt: #ffffff;
  --color-text: #2d2d2d;
  --color-text-light: #5a5a5a;
  --color-text-muted: #8b8b8b;
  --color-primary: var(--color-grass-green);
  --color-secondary: var(--color-dirt-brown);
  --color-accent: var(--color-diamond-blue);
  --color-success: var(--color-emerald);
  --color-warning: var(--color-gold);
  --color-danger: var(--color-redstone);
  --color-neutral: var(--color-stone-gray);
  --color-neutral-light: #c0c0c0;
  --color-neutral-dark: var(--color-cobblestone);
  
  /* Border Colors */
  --color-border: #d4cdb8;
  --color-border-light: #e8e4d8;
  --color-border-dark: var(--color-stone-gray);
  
  /* Typography */
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-heading: 'Press Start 2P', 'Courier New', monospace;
  --font-mono: 'Courier New', Courier, monospace;
  
  /* Font Sizes */
  --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 */
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;
  
  /* 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 - Blocky, Pixelated Style */
  --radius-none: 0;
  --radius-sm: 2px;
  --radius-base: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-full: 9999px;
  
  /* Shadows - Subtle, Minecraft-inspired */
  --shadow-sm: 2px 2px 0 rgba(0, 0, 0, 0.1);
  --shadow-base: 4px 4px 0 rgba(0, 0, 0, 0.15);
  --shadow-md: 6px 6px 0 rgba(0, 0, 0, 0.2);
  --shadow-lg: 8px 8px 0 rgba(0, 0, 0, 0.25);
  --shadow-xl: 12px 12px 0 rgba(0, 0, 0, 0.3);
  --shadow-inner: inset 2px 2px 4px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
  
  /* 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;
  
  /* Container */
  --container-max-width: 1280px;
  --container-padding: var(--space-4);
  
  /* Grid */
  --grid-gap: var(--space-6);
  
  /* Pixelated Border Width */
  --border-width: 3px;
}

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

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

html {
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

img {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}

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 TYPOGRAPHY
   ========================================================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: var(--line-height-tight);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h1 {
  font-size: clamp(1.5rem, 4vw, var(--font-size-4xl));
  margin-bottom: var(--space-6);
  color: var(--color-forest-green);
  text-shadow: 3px 3px 0 rgba(0, 0, 0, 0.1);
}

h2 {
  font-size: clamp(1.25rem, 3vw, var(--font-size-3xl));
  margin-bottom: var(--space-5);
  color: var(--color-forest-green);
}

h3 {
  font-size: clamp(1.125rem, 2.5vw, var(--font-size-2xl));
  margin-bottom: var(--space-4);
}

h4 {
  font-size: clamp(1rem, 2vw, var(--font-size-xl));
  margin-bottom: var(--space-3);
}

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

h6 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-2);
}

p {
  margin-bottom: var(--space-4);
  max-width: 70ch;
}

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

strong,
b {
  font-weight: 700;
  color: var(--color-text);
}

em,
i {
  font-style: italic;
}

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

code,
pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: var(--color-stone-gray);
  color: var(--color-snow);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

pre {
  display: block;
  padding: var(--space-4);
  overflow-x: auto;
  margin-bottom: var(--space-4);
}

blockquote {
  border-left: var(--border-width) solid var(--color-primary);
  padding-left: var(--space-4);
  margin: var(--space-6) 0;
  font-style: italic;
  color: var(--color-text-light);
}

hr {
  border: 0;
  height: var(--border-width);
  background-color: var(--color-border);
  margin: var(--space-8) 0;
  background-image: repeating-linear-gradient(
    90deg,
    var(--color-border),
    var(--color-border) 8px,
    transparent 8px,
    transparent 12px
  );
}

/* ==========================================================================
   LINKS
   ========================================================================== */

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

a:hover {
  color: var(--color-forest-green);
}

a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

a:active {
  transform: translateY(1px);
}

/* Pixelated link underline effect */
a.link-underline {
  background-image: linear-gradient(
    to right,
    currentColor 0%,
    currentColor 100%
  );
  background-size: 100% 2px;
  background-position: 0 100%;
  background-repeat: repeat-x;
  padding-bottom: 2px;
}

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

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

.container-fluid {
  width: 100%;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

.flex-1 {
  flex: 1;
}

.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;
  gap: var(--grid-gap);
}

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

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }
}

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

/* Text Colors */
.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-light { color: var(--color-text-light); }
.text-white { color: var(--color-snow); }

/* Background Colors */
.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-white { background-color: var(--color-snow); }
.bg-gray { background-color: var(--color-stone-gray); }

/* Spacing Utilities */
.m-0 { margin: 0; }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }
.my-4 { margin-top: var(--space-4); margin-bottom: var(--space-4); }
.my-8 { margin-top: var(--space-8); margin-bottom: var(--space-8); }

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

/* Screen Reader Only */
.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;
}

/* Visually Hidden but keyboard accessible */
.visually-hidden:not(:focus):not(:active) {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ==========================================================================
   COMPONENTS - BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-base);
  position: relative;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

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

/* Button Variants */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-snow);
  border-color: var(--color-forest-green);
}

.btn-primary:hover {
  background-color: var(--color-forest-green);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-snow);
  border-color: var(--color-wood);
}

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

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-obsidian);
  border-color: var(--color-diamond-blue);
}

.btn-danger {
  background-color: var(--color-danger);
  color: var(--color-snow);
  border-color: #c82333;
}

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

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

/* Button Sizes */
.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%;
}

/* Pixelated button effect */
.btn-pixelated {
  border-radius: 0;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.3);
}

.btn-pixelated:hover {
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.3);
}

.btn-pixelated:active {
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
  transform: translate(2px, 2px);
}

/* ==========================================================================
   COMPONENTS - FORMS
   ========================================================================== */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-snow);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-base);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-inner);
}

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

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(92, 184, 92, 0.2);
}

.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background-color: var(--color-neutral-light);
}

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

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

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.form-check-input {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.form-check-label {
  cursor: pointer;
  font-size: var(--font-size-base);
}

/* Form Help Text */
.form-help {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Form Validation */
.form-input.is-invalid,
.form-textarea.is-invalid,
.form-select.is-invalid {
  border-color: var(--color-danger);
}

.form-input.is-valid,
.form-textarea.is-valid,
.form-select.is-valid {
  border-color: var(--color-success);
}

.invalid-feedback {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-danger);
}

.valid-feedback {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-success);
}

/* ==========================================================================
   COMPONENTS - CARDS
   ========================================================================== */

.card {
  background-color: var(--color-background-alt);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-base);
  transition: all var(--transition-base);
}

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

.card-pixelated {
  border-radius: 0;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.1);
}

.card-pixelated:hover {
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.15);
}

.card-header {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 2px dashed var(--color-border);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
  color: var(--color-forest-green);
}

.card-body {
  margin-bottom: var(--space-4);
}

.card-body:last-child {
  margin-bottom: 0;
}

.card-footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 2px dashed var(--color-border);
}

.card-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  image-rendering: pixelated;
}

/* Card Variants */
.card-primary {
  border-color: var(--color-primary);
  background-color: rgba(92, 184, 92, 0.05);
}

.card-secondary {
  border-color: var(--color-secondary);
  background-color: rgba(139, 111, 71, 0.05);
}

.card-success {
  border-color: var(--color-success);
  background-color: rgba(40, 167, 69, 0.05);
}

/* ==========================================================================
   COMPONENTS - BADGES
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-base);
  background-color: var(--color-neutral);
  color: var(--color-snow);
}

.badge-primary { background-color: var(--color-primary); }
.badge-secondary { background-color: var(--color-secondary); }
.badge-success { background-color: var(--color-success); }
.badge-warning { background-color: var(--color-warning); color: var(--color-obsidian); }
.badge-danger { background-color: var(--color-danger); }

/* ==========================================================================
   COMPONENTS - ALERTS
   ========================================================================== */

.alert {
  padding: var(--space-4) var(--space-6);
  margin-bottom: var(--space-4);
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
}

.alert-primary {
  background-color: rgba(92, 184, 92, 0.15);
  border-color: var(--color-primary);
  color: var(--color-forest-green);
}

.alert-success {
  background-color: rgba(40, 167, 69, 0.15);
  border-color: var(--color-success);
  color: #1e7e34;
}

.alert-warning {
  background-color: rgba(255, 215, 0, 0.15);
  border-color: var(--color-warning);
  color: #856404;
}

.alert-danger {
  background-color: rgba(220, 53, 69, 0.15);
  border-color: var(--color-danger);
  color: #721c24;
}

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

/* Focus visible styles */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Skip to main content link */
.skip-to-main {
  position: absolute;
  top: -100px;
  left: 0;
  background-color: var(--color-primary);
  color: var(--color-snow);
  padding: var(--space-3) var(--space-4);
  text-decoration: none;
  border-radius: var(--radius-base);
  z-index: var(--z-tooltip);
}

.skip-to-main:focus {
  top: var(--space-4);
  left: var(--space-4);
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  .card:hover {
    transform: none;
  }
  
  .btn:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --color-text: #000000;
    --color-background: #ffffff;
    --border-width: 4px;
  }
  
  .btn,
  .card,
  .form-input {
    border-width: 4px;
  }
}

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

@media (max-width: 640px) {
  :root {
    --container-padding: var(--space-3);
    --font-size-base: 0.9375rem;
  }
  
  h1 {
    font-size: var(--font-size-2xl);
  }
  
  .btn {
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .show-mobile {
    display: none !important;
  }
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {
  body {
    background-color: white;
    color: black;
  }
  
  .btn,
  .card {
    box-shadow: none;
    border: 1px solid black;
  }
  
  a {
    text-decoration: underline;
  }
  
  .no-print {
    display: none !important;
  }
}