:root {
    --green: #00ff00;
    --black: #0f0f0f;
    --shadow: #006600;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--black);
    font-family: 'Courier New', monospace;
    color: var(--green);
}

.auth-buttons {
    margin: 10px 0;
    display: flex;
    gap: 10px;
}

#auth-message {
    color: var(--green);
    margin-top: 10px;
    min-height: 20px;
}

#upload-message {
    color: var(--green);
    margin-top: 10px;
    min-height: 20px;
}

.retro-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.screen-border {
    background: #333;
    padding: 20px;
    border-radius: 15px;
    box-shadow: inset 0 0 10px var(--shadow);
}

.screen {
    background: var(--black);
    border: 2px solid var(--green);
    padding: 20px;
    width: 1366px; /* Most common screen width */
    max-width: 100%;
    position: relative;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.popcoin {
    border: 1px solid var(--green);
    padding: 10px;
    text-align: center;
    box-shadow: 0 0 5px var(--shadow);
}

.popcoin img {
    max-width: 100%;
    height: auto;
}

input, button {
    background: var(--black);
    border: 1px solid var(--green);
    color: var(--green);
    padding: 5px;
    margin: 5px 0;
    font-family: 'Courier New', monospace;
}

button:hover {
    background: var(--green);
    color: var(--black);
    cursor: pointer;
}

.form-slide {
    position: fixed;
    bottom: -200px;
    left: 0;
    right: 0;
    background: var(--black);
    border-top: 2px solid var(--green);
    padding: 20px;
    transition: bottom 0.3s ease;
}

.form-slide.active {
    bottom: 0;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }
}