/* Your styles go here — you'll start filling this in during Lesson 2.2 (CSS week). */
:root {
  --accent: #50b800;
  --bg: #347700;
  --text: #ffffff;
  --surface: rgba(255, 255, 255, 0.1); 
  --border-color: rgba(96, 223, 0, 0.3);
  --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  --text-glow: 0 0 10px var(--accent);
  
  /* Standard Hover Settings */
  --hover-color: #008f18;     /* Nav link hover text color */
  --btn-hover-bg: #50b800;    /* Button hover background color */
  --btn-hover-text: #ffffff;  /* Button hover text color */
  
  /* Accent Two Fallback */
  --accent-two: #50b800;      /* Standard active button color */
}

/* Original checkbox toggle logic using your friend's dark theme styles */
body:has(#dark-mode-toggle:checked) {
  --bg: #000000;
  --text: #ffffff;
  --accent: #494949;
  --surface: rgba(20, 20, 30, 0.85);
  --border-color: rgba(255, 255, 255, 0.15);
  --box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  --text-glow: none;
  
  /* Dark Mode Hover Settings */
  --hover-color: #999999;     
  --btn-hover-bg: #494949;    
  --btn-hover-text: #ffffff;  
  --accent-two: #494949;      /* Dark mode active button color */
}

body {
  font-family: Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  margin: 0;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
  padding: 20px;
}

/* Hides the raw checkbox inputs so only your nice button labels show */
#dark-mode-toggle,
#gradient-mode-toggle {
  display: none;
}

/* Styles both toggle button rectangles exactly the same way */
label[for="dark-mode-toggle"],
label[for="gradient-mode-toggle"] {
  font-weight: 600;
  cursor: pointer;
  display: block;      /* Stacks them underneath each other */
  width: max-content;  /* Wraps the box tightly around the text */
  margin-bottom: 12px; /* Adds a clean gap below each box */
  padding: 8px 16px;
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: var(--box-shadow);
  user-select: none;
  transition: all 0.2s ease;
}

/* Dynamic button hover behavior mapped perfectly to variables */
label[for="dark-mode-toggle"]:hover,
label[for="gradient-mode-toggle"]:hover,
button:hover {
  border-color: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  background: var(--btn-hover-bg);
  color: var(--btn-hover-text);
}

/* Brightens the Dark Mode button when actively selected */
body:has(#dark-mode-toggle:checked) label[for="dark-mode-toggle"] {
  background: var(--accent);
  border-color: var(--text);
}

/* Brightens the Gradient button using your new accent variable when active */
body:has(#gradient-mode-toggle:checked) label[for="gradient-mode-toggle"],
body.gradient-mode label[for="gradient-mode-toggle"] {
  background: var(--accent-two); /* Uses your custom accent two value */
  border-color: var(--text);
}

/* Navigation bar */
nav {
  display: flex;
  gap: 20px;
  padding: 10px;
  background-color: var(--accent);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--box-shadow);
  margin-bottom: 20px;
}

nav a {
  text-decoration: none;
  color: rgb(255, 255, 255);
  font-weight: bold;
  transition: color 0.3s ease, text-shadow 0.3s ease;
}

/* Dynamic Link Hover State */
nav a:hover {
  color: var(--hover-color); 
  text-shadow: 0 0 8px var(--hover-color);
}

/* Headings */
h1 {
  font-size: 36px;
  color: var(--accent); 
  text-shadow: var(--text-glow);
}

header h3 {
  display: flex;
  gap: 20px;
  padding: 10px;
  text-decoration: none;
  color: rgb(255, 255, 255);
}

/* Main Content Containers */
main {
  max-width: 700px;
  margin: 0 auto;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--box-shadow);
}

p {
  padding: 10px;
  line-height: 16px;
}

/* Standard Buttons (like your "Show Gallery" button) */
button {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
}

/* Images */
img {
  max-width: 350px;
  display: block;
  margin: 20px 0;
  border-radius: 40%;
  border: 2px solid #000000;
  box-shadow: 0 0 15px var(--accent);
}

/* Horizontal Rules */
hr {
  border: none;
  height: 1px;
  background: var(--border-color);
  margin: 24px 0;
}

/* --- ACTIVATING MATRIX GRADIENT MODE --- */
body:has(#gradient-mode-toggle:checked),
body.gradient-mode {
  background: linear-gradient(135deg, #000000, #051a00, #003300, #000000);
  background-size: 400% 400%;
  animation: matrixShift 12s ease infinite;
  
  --text: #39ff14;                
  --accent: #00ff00;              
  --surface: rgba(0, 15, 0, 0.85); 
  --border-color: #00ff00;        
  --box-shadow: 0 0 25px rgba(0, 0, 0, 0.25);
  
  /* Matrix Mode Specific Hover Variations */
  --hover-color: #000000;       /* Nav link hover text color */
  --btn-hover-bg: #0e7501;      /* Button hover background color */
  --btn-hover-text: #ffffff;    /* Button hover text color */
  
  /* Your customized active button color token */
  --accent-two: #0e7501;        /* Change this value to style the ON button color! */
}

body:has(#gradient-mode-toggle:checked) nav a,
body.gradient-mode nav a {
  color: #ffffff;
}

@keyframes matrixShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}