/* --- GLOBAL BASE STYLES (Used by both pages) --- */
body {
    background-color: #0d1117; /* Deep matte dark blue/gray */
    color: #c9d1d9;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column; /* Allows content layout shifting */
}

/* --- THE SHARED NAVIGATION BAR --- */
header {
    background-color: #161b22; /* Darker header container */
    border-bottom: 1px solid #30363d;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #ffffff;
    font-weight: 700;
    font-size: 1.4rem;
}

.logo span {
    color: #58a6ff; /* Accent blue color */
}

.logo-img {
    height: 35px;
    width: auto;
}

.logo-img2 {
    height: 100px;
    width: auto;
}

nav a {
    color: #8b949e;
    text-decoration: none;
    margin-left: 25px;
    font-weight: 500;
    font-size: 1rem;
    transition: color 0.2s ease;
    white-space: nowrap;
}

nav a:hover {
    color: #58a6ff; /* Changes to crisp blue on hover */
}

/* --- DANGER ZONE LINK STYLING --- */
nav a.danger-zone {
    color: #f85149; /* Warning red */
    border: 1px solid rgba(248, 81, 73, 0.3);
    padding: 5px 10px;
    border-radius: 6px;
}

nav a.danger-zone:hover {
    background-color: rgba(248, 81, 73, 0.1);
    color: #ff7b72;
}

/* --- MAIN CONTENT CONTAINER --- */
.container {
    max-width: 800px;
    margin: 60px auto;
    padding: 0 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center; /* Keeps text, inputs, and buttons perfectly centered */
}

h1 {
    color: #ffffff;
    font-size: 2.8rem;
    margin-bottom: 20px;
}

p {
    font-size: 1.2rem;
    line-height: 1.6;
    color: #8b949e;
    margin-bottom: 30px;
}

/* --- UTILITIES --- */
.hidden {
    display: none !important;
}

/* --- DYNAMIC TOOLS SYSTEM --- */

/* The interactive drop-down engines */
.tool-box {
    margin-top: 15px;
    margin-bottom: 35px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 400px; /* Limits size to keep things look sharp */
}

/* Input fields for math, factorization, and puzzle engines */
#math-input, #factor-input, #puzzle-input {
    background-color: #161b22; /* Matches header dark */
    border: 1px solid #30363d; /* Matches theme border */
    border-radius: 8px;
    color: #fff;
    padding: 12px;
    font-size: 16px;
    outline: none;
    text-align: center;
}

#math-input:focus, #factor-input:focus, #puzzle-input:focus {
    border-color: #58a6ff; /* Glows blue when active */
}

/* Action buttons */
#calc-btn, #factor-btn, #graph-btn, #puzzle-btn {
    background: linear-gradient(to right, #1f6feb, #58a6ff); /* Smooth operational blues */
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.2s, filter 0.2s;
}

#calc-btn:hover, #factor-btn:hover, #puzzle-btn:hover {
    transform: scale(1.02);
    filter: brightness(1.1);
}

/* Displays results */
.result {
    background-color: #161b22; 
    border: 1px solid #30363d; 
    border-radius: 8px;
    padding: 15px;
    color: #58a6ff; /* Matches theme crisp blue */
    font-family: monospace; 
    text-align: center;
    font-size: 1.1rem;
}

/* High-tech main menu toggle buttons */
#toggle-calc-btn, #toggle-factor-btn, #toggle-fractal-btn, #toggle-grapher-btn, #toggle-puzzle-btn {
    background-color: #161b22;
    color: #58a6ff;
    border: 2px solid #30363d;
    border-radius: 8px;
    padding: 14px 28px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    margin-top: 15px;
    width: 100%;
    max-width: 300px; /* Makes selection buttons the exact same size */
    transition: all 0.2s ease-in-out;
}

#toggle-calc-btn:hover, #toggle-factor-btn:hover, #toggle-puzzle-btn:hover {
    border-color: #58a6ff;
    background-color: rgba(88, 166, 255, 0.1);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.25);
}

/* --- TRAP PAGE CONTENT STYLE (dontclick.html) --- */
.trap-container {
    flex-grow: 1; /* Expands to fill the body space below the header */
    display: flex;
    justify-content: center;
    align-items: center;
}

#trap-btn {
    padding: 20px 40px;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    background-color: #e74c3c; /* Trap red button */
    color: white;
    border: none;
    border-radius: 10px;
    box-shadow: 0px 5px 15px rgba(0, 0, 0, 0.4);
    transition: transform 0.1s ease;
}

#trap-btn:hover {
    background-color: #c0392b;
    transform: scale(1.05); /* Fun tiny pop on hover */
}

/* --- VIDEOS PAGE STYLE --- */
/* Video Grid Base */
.video-grid {
    display: grid;
    gap: 25px;
    margin-top: 40px;
    width: 100%;
    max-width: 1000px;
}

/* Sleek, clickable video card */
.video-card {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: row;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

/* Cards light up green on hover to feel inviting and active! */
.video-card:hover {
    transform: translateY(-5px);
    border-color: #2ea44f;
    box-shadow: 0 8px 24px rgba(46, 164, 79, 0.15);
}

/* Open, high-energy video player thumbnail */
.video-thumbnail {
    width: 200px;
    height: 150px;
    background: linear-gradient(135deg, #1f2937, #0d1117);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    border-bottom: 1px solid #30363d;
    transition: transform 0.3s ease;
}

.video-card:hover .video-thumbnail {
    transform: scale(1.03); /* Subtle zoom effect on the icon when hovering */
}

.logo-img3 {
    display: block;
    margin: 25px auto 0 auto;
    width: 30%;
    max-width: 120px;
    min-width: 70px;
    height: auto;
}
#global-leaderboard h3 {
    margin-top: 0;
    color: #58a6ff;
}
.leaderboard-entry {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #30363d;
}
.hidden {
    display: none;
}

#level-map button {
    margin: 2px; /* Adds breathing room between locks */
}

#save-nickname-btn {
    background-color: #238636;
    color: white;
    padding: 24px 48px;        /* Huge touch area */
    border: none;
    border-radius: 12px;       /* Larger, softer corners */
    font-weight: bold;
    font-size: 1.8rem;         /* Big, bold text */
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    width: 100%;               /* Spans the width of the container */
    max-width: 500px;          /* Prevents it from being too wide on desktop */
}

#save-nickname-btn:hover {
    background-color: #2ea043;
    transform: scale(1.05);    /* Punchy hover effect */
}

#save-nickname-btn:active {
    transform: scale(0.95);
}

#nickname-input {
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #30363d;
    background-color: #0d1117;
    color: white;
}