html, body {
    margin: 0;
    padding: 0;
    overflow: hidden; /* Prevents scrollbars */
    width: 100%;
    height: 100%;
}

canvas {
    display: block; /* Ensures the canvas doesn't add extra spaces */
    width: 100vw; /* Full viewport width */
    height: 100vh; /* Full viewport height */
}

#overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* Semi-transparent black */
    z-index: 999; /* Ensure it appears above everything */
    display: none; /* Hidden by default */
}

#login-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7); /* Semi-transparent background */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000; /* Ensure it's above the game canvas */
    transition: all 0.3s ease-in-out;
}

#login-modal {
    background: #FFF2D1; /* น้ำตาลอ่อนเข้มขึ้น */
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15); /* เงาลึกขึ้น */
    border: 3px solid #C8A15E; /* ขอบน้ำตาลเข้ม */
    text-align: center;
    width: 360px;
    position: relative;
}

#login-modal:before {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
    border: 2px dashed rgba(192, 151, 94, 0.5); /* เส้นขอบน้ำตาล */
    border-radius: 22px;
    pointer-events: none;
}

#login-modal h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #8B4513; /* น้ำตาลเข้ม */
}

#login-modal p {
    font-size: 18px;
    color: #4F4F4F;
    margin-bottom: 25px;
}

#login-modal form input {
    width: 90%;
    padding: 14px;
    margin-bottom: 20px;
    border: 2px solid #D3D3D3;
    border-radius: 12px;
    font-size: 15px;
    background: #FBF8F2;
    outline: none;
    transition: border 0.3s ease, background 0.3s ease;
}

#login-modal form input:focus {
    border-color: #C8A15E; /* น้ำตาลเข้มเมื่อโฟกัส */
    background: #FFF;
}

button {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 15px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease, transform 0.2s ease;
}

/* ปุ่ม Login */
.primary-button {
    background: linear-gradient(to right, #D2B48C, #B89A6D); /* ครีมเข้มขึ้น */
    color: white;
    box-shadow: 0 6px 20px rgba(210, 180, 140, 0.5);
}

.primary-button:hover {
    background: linear-gradient(to right, #C9A67D, #B69A7C); /* สีเข็มขึ้น */
    transform: translateY(-3px);
}

/* ปุ่ม Register */
.secondary-button {
    background: linear-gradient(to right, #F5DEB3, #C8A15E); /* ครีมและน้ำตาลเข้ม */
    color: white;
    
}

.secondary-button:hover {
    background: linear-gradient(to right, #D2691E, #A0522D); /* น้ำตาลเข้ม */
    transform: translateY(-3px);
}

/* ปุ่ม Cancel */
.danger-button {
    background: linear-gradient(to right, #F4A460, #C97D5B); /* น้ำตาลอมส้มเข้ม */
    color: white;
}

.danger-button:hover {
    background: linear-gradient(to right, #D2691E, #A0522D); /* น้ำตาลเข้ม */
    transform: translateY(-3px);
}

.button-group {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    gap: 10px;
}

.button-group button {
    width: 48%;
    padding: 14px;
}

#register-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#register-modal {
    background: #FFF2D1; /* Light brown background */
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15); /* Deep shadow */
    border: 3px solid #C8A15E; /* Dark brown border */
    text-align: center;
    width: 360px;
    position: relative;
}

#register-modal:before {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
    border: 2px dashed rgba(192, 151, 94, 0.5); /* Dashed border */
    border-radius: 22px;
    pointer-events: none;
}

#register-modal h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #8B4513; /* Dark brown */
}

#register-modal p {
    font-size: 18px;
    color: #4F4F4F;
    margin-bottom: 25px;
}

#register-modal form input {
    width: 90%;
    padding: 14px;
    margin-bottom: 20px;
    border: 2px solid #D3D3D3;
    border-radius: 12px;
    font-size: 15px;
    background: #FBF8F2;
    outline: none;
    transition: border 0.3s ease, background 0.3s ease;
}

#register-modal form input:focus {
    border-color: #C8A15E; /* Dark brown on focus */
    background: #FFF;
}

button {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 15px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease, transform 0.2s ease;
}

/* Register button */
.primary-button {
    background: linear-gradient(to right, #D2B48C, #B89A6D); /* Gradient */
    color: white;
    box-shadow: 0 6px 20px rgba(210, 180, 140, 0.5);
}

.primary-button:hover {
    background: linear-gradient(to right, #C9A67D, #B69A7C); /* Darker gradient */
    transform: translateY(-3px);
}

/* Login button */
.secondary-button {
    background: linear-gradient(to right, #F5DEB3, #C8A15E); /* Cream and brown gradient */
    color: white;
}

.secondary-button:hover {
    background: linear-gradient(to right, #D2691E, #A0522D); /* Darker brown */
    transform: translateY(-3px);
}

/* Cancel button */
.danger-button {
    background: linear-gradient(to right, #F4A460, #C97D5B); /* Orange-brown gradient */
    color: white;
}

.danger-button:hover {
    background: linear-gradient(to right, #D2691E, #A0522D); /* Darker brown */
    transform: translateY(-3px);
}

.button-group {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    gap: 10px;
}

.button-group button {
    width: 48%;
    padding: 14px;
}


#leaderboard-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

#leaderboard-modal {
    background: #FFF2D1; /* Light brown background */
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15); /* Deep shadow */
    border: 3px solid #C8A15E; /* Dark brown border */
    text-align: center;
    width: 360px;
    max-width: 90%;
    position: relative;
}

#leaderboard-modal:before {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
    border: 2px dashed rgba(192, 151, 94, 0.5); /* Dashed border */
    border-radius: 22px;
    pointer-events: none;
}

#leaderboard-modal h2 {
    font-size: 28px;
    margin-bottom: 15px;
    color: #8B4513; /* Dark brown */
}

#leaderboard-modal p {
    font-size: 18px;
    color: #4F4F4F;
    margin-bottom: 20px;
}

#leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

#leaderboard-table th, 
#leaderboard-table td {
    border: 1px solid #C8A15E; /* Dark brown border for table */
    padding: 10px;
    font-size: 14px;
    text-align: left;
}

#leaderboard-table th {
    background: #D2B48C; /* Light brown header */
    color: white;
}

#leaderboard-table tbody tr:nth-child(even) {
    background: #FBF8F2; /* Slightly lighter background for alternate rows */
}

#leaderboard-table tbody tr:nth-child(odd) {
    background: #FFF;
}

button {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 15px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease, transform 0.2s ease;
}

/* Close button */
.danger-button {
    background: linear-gradient(to right, #F4A460, #C97D5B); /* Orange-brown gradient */
    color: white;
}

.danger-button:hover {
    background: linear-gradient(to right, #D2691E, #A0522D); /* Darker brown */
    transform: translateY(-3px);
}

.button-group {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}