.bomb-effect, .explosion-effect {
    position: fixed;
    left: 50%;
    top: 10%;
    transform: translate(-50%, -50%);
    width: 350px;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
}

.fade-in {
    animation: fadeIn 0.4s forwards;
}

.fade-out {
    animation: fadeOut 0.5s forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

#controls {

text-align: center;
margin-top: 20px;

}

#final-stop-button {
font-size: 1.5rem;
padding: 1rem 3rem;
background-color: #dc3545;
border-color: #dc3545;

}

#final-stop-container {
margin-top: 2rem;
text-align: center;

}

#grid-container {

display: grid;
grid-template-columns: repeat(10, 1fr);
gap: 5px;
max-width: 600px;
margin: 20px auto;

}

#info-panel {

text-align: center;
margin-bottom: 20px;
font-size: 18px;

}

#timer-display {
font-size: 2.5rem;
font-weight: bold;
text-align: center;
margin-bottom: 1.5rem;
padding: 1.5rem;
background-color: #fff3cd;
border: 3px solid #ffc107;
border-radius: 0.5rem;
color: #856404;

}

/* CLOSE CALL DIALOG */

#close-dialog {
border: 5px solid orange;
padding: 2rem;
background-color: yellow;
text-align: center;
}

#close-dialog::backdrop {
background-color: rgba(0, 0, 0, 0.7);
}

.close-warning {
font-size: 3rem;
font-weight: bold;
color: orange;
animation: flash-close 0.6s ease-in-out infinite;
margin-bottom: 10px;
}

.close-message {
font-size: 1.5rem;
font-weight: bold;
color: #856404;
}


#waiting-dialog {
border: 5px solid red;
padding: 2rem;
background-color: yellow;
text-align: center;
}

#waiting-dialog::backdrop {
background-color: rgba(0, 0, 0, 0.7);
}

.alert {
padding: 1.5rem;
margin: 1rem 0;
border-radius: 0.5rem;
border: 2px solid;

}

.alert-info {
background-color: #d1ecf1;
border-color: #17a2b8;
color: #0c5460;

}

.alert-success {
background-color: #d4edda;
border-color: #28a745;
color: #155724;

}

.fancy-mode #game-container {

background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
padding: 30px;
border-radius: 15px;
box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);

}

.fancy-mode #info-panel {

color: white;
font-size: 22px;
text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);

}

.fancy-mode .grid-box {

background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
border: 3px solid #fff;
box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
animation: pulse-border 1s infinite;
color: white;
font-weight: bold;

}

.fancy-mode .grid-box.collected {

background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
border-color: #ff0080;
box-shadow: 0 0 20px rgba(245, 87, 108, 0.8);
animation: pulse-collected 0.5s;

}

.fancy-mode .grid-box.lucky-number {
background-color: gold;
border: 3px solid #1e7e34;
font-weight: bold;
color: black;
animation: flash-green 1s ease-in-out infinite;
}

.fancy-mode .grid-box.lucky-number.collected {
background-color: #218838;
border: 3px solid #1e7e34;
color: white;
animation: flash-green 1s ease-in-out infinite;

}

.grid-box {

width: 50px;
height: 50px;
border: 2px solid #333;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
background-color: #e0e0e0;
font-size: 12px;
transition: all 0.3s;

}

.grid-box.bomb {

background-color: #f44336;
color: white;
font-size: 24px;
animation: explode 0.5s;

}

.grid-box.bomb-protected {
background-color: #28a745;
color: white;
font-size: 2rem;
animation: pulse-border 1s ease-in-out;

}

.grid-box.collected {

background-color: #4CAF50;
color: white;
border-color: #45a049;

}

.grid-box.lucky-number {
background-color: gold;
border: 3px solid #1e7e34;
font-weight: bold;
color: black;
animation: flash-green 1s ease-in-out infinite;
}

.grid-box:hover {

background-color: #d0d0d0;
transform: scale(1.05);

}

.hidden {

display: none;

}

.waiting-text {
font-size: 3rem;
font-weight: bold;
color: red;
margin: 0;
animation: flash-waiting 0.5s ease-in-out infinite;
}

@keyframes explode {

0% {
  transform: scale(1);
}
50% {
  transform: scale(1.5);
}
100% {
  transform: scale(1);
}

}

@keyframes flash-green {
0%, 100% {
    background-color: #28a745;
    border-color: #1e7e34;
}
50% {
    background-color: #5cb85c;
    border-color: #4cae4c;
}

}

@keyframes flash-waiting {
0%, 100% {
  opacity: 1;
}
50% {
  opacity: 0.3;
}
}

@keyframes pulse-border {

0%, 100% {
  border-color: #fff;
}
50% {
  border-color: #ffd700;
}

}

@keyframes pulse-collected {

0% {
  transform: scale(1);
}
50% {
  transform: scale(1.2);
}
100% {
  transform: scale(1);
}

}

dialog {

border: none;
border-radius: 10px;
padding: 30px;
box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);

}

dialog h3 {

margin-top: 0;
color: #f44336;

}

dialog::backdrop {

background: rgba(0, 0, 0, 0.7);

}

/* =============================================== */
/* General */
/* =============================================== */

/* Paragraphs */
p {
    font-size: 1.05em;
}

/* Form labels */
.otree-form label {
    font-size: 1.1em;
}

/* Radio / checkbox text */
.otree-form .controls {
    font-size: 1.1em;
}

/* Buttons */
.btn {
    font-size: 1.1em;
    padding: 10px 18px;
}




/* =============================================== */
/* Results */
/* =============================================== */

.table {
    width: 100%;
    margin-bottom: 0;
}

th, td {
    text-align: center;
}

.card-info {
    padding: 15px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.15);
    margin-top: 15px;
    margin-bottom: 15px;
}

/* Instructions / Consent style */
.consent {
    max-width: 900px;
    margin: auto;
}

.consent p,
.consent li {
    font-size: 22px !important;
    line-height: 1.7;
}

.consent b {
    font-size: 23px;
}

/* Headings */
.consent h1,
.consent h2,
.consent h3 {
    font-size: 24px;
}
/* Increase overall text size */
body {
    font-size: 18px;   /* try 18–20px */
    line-height: 1.6;
}