@import url("https://fonts.googleapis.com/css2?family=VT323&display=swap");

/* ============================================
   CSS VARIABLES - Design System
   ============================================ */
:root {
  /* Colors */
  --color-bg-primary: #000000;
  --color-bg-window: #444444;
  --color-bg-content: #666666;
  --color-bg-header: #eeeeee;
  --color-bg-button: #d0d0d0;
  --color-bg-button-hover: #bbbbbb;
  --color-bg-input: #dddddd;
  --color-bg-popup: #666666;
  --color-bg-popup-overlay: rgba(0, 0, 0, 0.7);
  
  --color-text-primary: #222222;
  --color-text-secondary: #dddddd;
  --color-text-button: #333333;
  
  --color-border-primary: #333333;
  --color-border-secondary: #404040;
  --color-border-cell: #808080;
  --color-border-cell-revealed: #a0a0a0;
  
  --color-cell: #c0c0c0;
  --color-cell-revealed: #d0d0d0;
  
  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.25rem;   /* 20px */
  --spacing-xl: 1.5rem;    /* 24px */
  --spacing-2xl: 2rem;     /* 32px */
  
  /* Typography */
  --font-family: "VT323", monospace;
  --font-size-xs: 0.875rem;    /* 14px */
  --font-size-sm: 1rem;        /* 16px */
  --font-size-base: 1.125rem;  /* 18px */
  --font-size-md: 1.25rem;     /* 20px */
  --font-size-lg: 1.375rem;    /* 22px */
  --font-size-xl: 1.5rem;      /* 24px */
  --font-size-2xl: 1.75rem;    /* 28px */
  --font-size-3xl: 2rem;       /* 32px */
  
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Layout */
  --border-radius-sm: 5px;
  --border-radius-md: 10px;
  --border-radius-lg: 13px;
  
  --border-width: 2px;
  --border-width-thick: 3px;
  
  --shadow-sm: 0 0 10px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 6px 12px rgba(0, 0, 0, 0.4);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Touch targets - minimum 44x44px for accessibility */
  --touch-target-min: 44px;
  
  /* Breakpoints (for reference, using mobile-first) */
  /* Mobile: 320-479px (default) */
  /* Large Mobile: 480-767px */
  /* Tablet: 768-1023px */
  /* Laptop: 1024-1365px */
  /* Desktop: 1366-1439px */
  /* Large Desktop: 1440px+ */
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden; /* Prevent horizontal scroll */
  background-color: var(--color-bg-primary);
  font-family: var(--font-family);
  color: var(--color-text-primary);
  text-transform: uppercase;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh; /* Dynamic viewport height for mobile */
  padding: var(--spacing-sm);
}

/* ============================================
   WINDOW COMPONENT
   ============================================ */
/* UX Fix: Consistent window sizing across all pages */
.window {
  background-color: var(--color-bg-window);
  width: 100%;
  max-width: 100%;
  /* Fixed height strategy for consistency - window maintains same size across pages */
  height: 90vh;
  min-height: 500px;
  max-height: 90vh;
  border: var(--border-width) solid var(--color-border-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

/* Window Header */
.window-header {
  background-color: var(--color-bg-header);
  color: var(--color-text-primary);
  padding: var(--spacing-md) var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
  font-size: var(--font-size-base);
  border-bottom: 1px solid var(--color-border-primary);
  flex-shrink: 0;
}

.window-title {
  font-size: var(--font-size-base);
  font-weight: bold;
  text-align: center;
}

.window-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

.window-header a {
  color: var(--color-text-primary);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-button);
  border: var(--border-width) solid var(--color-border-secondary);
  border-radius: var(--border-radius-sm);
  font-weight: bold;
  font-size: var(--font-size-sm);
  transition: all var(--transition-base);
  min-height: var(--touch-target-min);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.window-header a:hover {
  background-color: var(--color-bg-button-hover);
  transform: translateY(-1px);
}

.window-header a:focus {
  outline: 2px solid var(--color-border-secondary);
  outline-offset: 2px;
}

.window-header a:active {
  transform: translateY(0);
}

/* Window Content - UX-first: Natural scrolling, no forced indicators */
.window-content {
  padding: var(--spacing-md);
  background-color: var(--color-bg-content);
  color: var(--color-text-secondary);
  flex: 1;
  display: flex;
  flex-direction: column;
  font-size: var(--font-size-base);
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
}

body.partnership .window-content {
  padding-bottom: var(--spacing-md);
}

/* ============================================
   ICONS CONTAINER
   ============================================ */
.icons-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: var(--spacing-md);
  justify-items: center;
  margin-bottom: var(--spacing-lg);
  width: 100%;
}

.icon {
  text-align: center;
  text-decoration: none;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  position: relative;
  width: 100%;
  max-width: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform var(--transition-base);
  padding: var(--spacing-xs);
}

.icon img {
  width: 100%;
  max-width: 130px;
  height: auto;
  aspect-ratio: 1 / 1; /* Maintain square aspect ratio */
  object-fit: contain;
  margin-bottom: var(--spacing-sm);
  display: block;
  cursor: pointer;
  transition: transform var(--transition-base);
}

.icon p {
  margin: 0;
  line-height: var(--line-height-tight);
  font-size: var(--font-size-sm);
  text-align: center;
  word-break: break-word;
}

.icon:hover img {
  transform: scale(1.05);
}

.icon:active img {
  transform: scale(0.95);
}

.icon:focus {
  outline: 2px solid var(--color-text-secondary);
  outline-offset: 4px;
  border-radius: var(--border-radius-sm);
}

/* ============================================
   FOOTER
   ============================================ */
.footer-text {
  text-align: center;
  margin-top: auto;
  padding-bottom: 0;
  font-size: var(--font-size-sm);
}

/* ============================================
   GAME STYLES (Minesweeper)
   ============================================ */
#game {
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: transparent;
}

#header {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  width: 100%;
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm);
  text-align: center;
  font-size: var(--font-size-base);
}

#reset-button {
  font-size: var(--font-size-lg);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-button);
  border: var(--border-width) solid var(--color-border-secondary);
  color: var(--color-text-button);
  cursor: pointer;
  margin-top: var(--spacing-md);
  min-height: var(--touch-target-min);
  font-family: var(--font-family);
  font-weight: bold;
  transition: all var(--transition-base);
  border-radius: var(--border-radius-sm);
}

#reset-button:hover {
  background-color: var(--color-bg-button-hover);
}

#reset-button:focus {
  outline: 2px solid var(--color-border-secondary);
  outline-offset: 2px;
}

#reset-button:active {
  transform: scale(0.98);
}

#board {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-template-rows: repeat(10, 1fr);
  gap: 3px;
  margin-bottom: var(--spacing-md);
  width: 100%;
  max-width: 400px;
  aspect-ratio: 1 / 1; /* Maintain square aspect ratio */
}

.cell {
  width: 100%;
  height: 100%;
  min-height: 24px;
  background-color: var(--color-cell);
  border: var(--border-width) solid var(--color-border-cell);
  text-align: center;
  font-size: clamp(14px, 2vw, 20px); /* Responsive font size */
  line-height: 1;
  cursor: pointer;
  color: var(--color-text-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all var(--transition-fast);
  user-select: none;
  -webkit-tap-highlight-color: transparent; /* Remove tap highlight on mobile */
}

.cell:active {
  transform: scale(0.95);
}

.cell.revealed {
  background-color: var(--color-cell-revealed);
  border-color: var(--color-border-cell-revealed);
  cursor: default;
}

.cell.mine {
  background-color: transparent;
  background-image: url("img/mineGame.png");
  background-size: 90%;
  background-repeat: no-repeat;
  background-position: center;
}

.cell.flagged {
  background-color: transparent;
  background-image: url("img/flagMines.png");
  background-size: 90%;
  background-repeat: no-repeat;
  background-position: center;
}

/* ============================================
   FORM STYLES
   ============================================ */
form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-width: 500px;
  width: 100%;
  margin: 0 auto;
}

label {
  font-weight: bold;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-base);
}

input[type="text"],
input[type="email"],
input[type="date"],
input[type="password"],
textarea {
  padding: var(--spacing-sm);
  border: var(--border-width) solid var(--color-border-primary);
  background-color: var(--color-bg-input);
  color: var(--color-text-button);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  width: 100%;
  min-height: var(--touch-target-min);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="date"]:focus,
input[type="password"]:focus,
textarea:focus {
  outline: 2px solid var(--color-border-secondary);
  outline-offset: 2px;
  background-color: #f0f0f0;
}

textarea {
  min-height: 80px;
  resize: vertical;
  font-family: var(--font-family);
}

textarea#message {
  min-height: 100px;
}

button {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg-button);
  border: var(--border-width) solid var(--color-border-secondary);
  color: var(--color-text-button);
  cursor: pointer;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: bold;
  min-height: var(--touch-target-min);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
  text-transform: uppercase;
}

button:hover {
  background-color: var(--color-bg-button-hover);
  transform: translateY(-1px);
}

button:focus {
  outline: 2px solid var(--color-border-secondary);
  outline-offset: 2px;
}

button:active {
  transform: translateY(0);
}

/* ============================================
   POPUP STYLES
   ============================================ */
.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-bg-popup-overlay);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  padding: var(--spacing-md);
}

.popup-overlay.active {
  display: flex;
}

.popup-content {
  background-color: var(--color-bg-popup);
  padding: var(--spacing-xl);
  border: var(--border-width) solid var(--color-border-primary);
  border-radius: var(--border-radius-md);
  text-align: center;
  max-width: 400px;
  width: 100%;
  position: relative;
}

.popup-content h2 {
  margin-top: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-md);
}

.popup-content input[type="password"] {
  width: 100%;
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
  border: var(--border-width) solid var(--color-border-primary);
  background-color: var(--color-bg-input);
  color: var(--color-text-button);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  box-sizing: border-box;
}

.popup-content button {
  margin: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
}

.close-popup {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-md);
  font-size: var(--font-size-2xl);
  cursor: pointer;
  color: var(--color-text-secondary);
  width: 36px;
  height: 36px;
  min-width: var(--touch-target-min);
  min-height: var(--touch-target-min);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color var(--transition-base);
  line-height: 1;
}

.close-popup:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.close-popup:focus {
  outline: 2px solid var(--color-text-secondary);
  outline-offset: 2px;
}

/* ============================================
   RESPONSIVE BREAKPOINTS - Mobile First
   ============================================ */

/* Very Small Mobile: 320px and below */
@media (max-width: 320px) {
  body {
    padding: var(--spacing-xs);
  }
  
  .window {
    width: 100%;
    max-width: 100%;
    height: 95vh;
    min-height: 400px;
    max-height: 95vh;
    border-radius: var(--border-radius-md);
  }
  
  .window-content {
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
  }
  
  .icons-container {
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: var(--spacing-sm);
  }
  
  .icon {
    max-width: 100px;
  }
  
  .icon img {
    max-width: 90px;
  }
  
  .icon p {
    font-size: var(--font-size-xs);
  }
  
  #board {
    max-width: 280px;
  }
}

/* Large Mobile: 480px and up */
@media (min-width: 480px) {
  body {
    padding: var(--spacing-md);
  }
  
  .window {
    max-width: 90%;
    height: 85vh;
    min-height: 550px;
    max-height: 85vh;
  }
  
  .window-header {
    flex-direction: row;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
  }
  
  .window-title {
    font-size: var(--font-size-lg);
  }
  
  .window-header a {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    background-color: transparent;
    border: none;
    border-radius: 0;
  }
  
  .window-header a:hover {
    background-color: var(--color-bg-button-hover);
    text-decoration: underline;
  }
  
  .icons-container {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-lg);
  }
  
  .icon img {
    max-width: 140px;
  }
  
  .icon p {
    font-size: var(--font-size-base);
  }
}

/* Tablet: 768px and up */
@media (min-width: 768px) {
  .window {
    width: 85%;
    max-width: 800px;
    height: 80vh;
    min-height: 600px;
    max-height: 80vh;
  }
  
  .window-header {
    padding: var(--spacing-lg);
    font-size: var(--font-size-xl);
  }
  
  .window-title {
    font-size: var(--font-size-xl);
  }
  
  .window-header a {
    padding: var(--spacing-md) var(--spacing-xl);
    margin: 0 var(--spacing-sm);
    font-size: var(--font-size-lg);
  }
  
  .window-content {
    padding: var(--spacing-xl);
    font-size: var(--font-size-lg);
  }
  
  .icons-container {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-xl);
  }
  
  .icon {
    max-width: 160px;
  }
  
  .icon img {
    max-width: 150px;
  }
  
  .icon p {
    font-size: var(--font-size-lg);
  }
  
  #board {
    max-width: 450px;
  }
  
  .cell {
    font-size: clamp(16px, 1.5vw, 22px);
  }
  
  form {
    max-width: 550px;
  }
  
  input[type="text"],
  input[type="email"],
  input[type="date"],
  input[type="password"],
  textarea {
    padding: var(--spacing-md);
    font-size: var(--font-size-lg);
  }
  
  button {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
  }
}

/* Laptop: 1024px and up */
@media (min-width: 1024px) {
  .window {
    width: 80%;
    max-width: 850px;
    height: 75vh;
    min-height: 650px;
    max-height: 75vh;
  }
  
  .icons-container {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
  
  .icon {
    max-width: 180px;
  }
  
  .icon img {
    max-width: 160px;
  }
  
  #board {
    max-width: 500px;
  }
  
  .cell {
    font-size: clamp(18px, 1.2vw, 24px);
  }
}

/* Desktop: 1366px and up */
@media (min-width: 1366px) {
  .window {
    width: 75%;
    max-width: 900px;
    height: 75vh;
    min-height: 650px;
    max-height: 75vh;
  }
  
  .icons-container {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-2xl);
  }
  
  .icon {
    max-width: 200px;
  }
  
  .icon img {
    max-width: 180px;
  }
}

/* Large Desktop: 1440px and up */
@media (min-width: 1440px) {
  .window {
    max-width: 1000px;
    height: 75vh;
    min-height: 700px;
    max-height: 75vh;
  }
  
  .window-content {
    padding: var(--spacing-2xl);
  }
  
  .icons-container {
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  }
  
  .icon {
    max-width: 220px;
  }
  
  .icon img {
    max-width: 200px;
  }
  
  #board {
    max-width: 550px;
  }
}

/* ============================================
   UTILITY CLASSES & FIXES
   ============================================ */

/* Prevent text selection on interactive elements */
.icon,
button,
.cell {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Global text wrapping - prevent long words/URLs from breaking layout */
p, div, span, label, input, textarea {
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

/* Ensure URLs and long strings break properly */
a, input[type="url"], input[type="email"] {
  word-break: break-all;
  overflow-wrap: anywhere;
}

/* Improve image rendering */
img {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  max-width: 100%;
  height: auto;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Focus visible for better accessibility */
*:focus-visible {
  outline: 2px solid var(--color-border-secondary);
  outline-offset: 2px;
}

/* Remove focus outline for mouse users (optional) */
*:focus:not(:focus-visible) {
  outline: none;
}