/* Colors */
:root{
    --primary-gray: #1e1e1e;
    --accent-color: #ffe270;
    --error-color: #ff5c5c;
}

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

/* Full-viewport base */
html {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

.image-container {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/background.jpg');
    background-size: cover;
    opacity: 0.1;
    z-index: -100;
}

/* Body styling — use min-height: 100vh instead of height: 100% for Firefox */
body {
    min-height: 100vh;
    width: 100%;
    overflow: hidden;
    color: white;
    background-color: var(--primary-gray);
    font-family: "Lexend";
    display: flex;
    justify-content: center;
    align-items: center;
}

.error-banner {
    display: flex;
    visibility: hidden;
    position: fixed;
    top: 0;
    left: 0;
    min-width: 100%;
    background-color: var(--error-color);
    padding: 20px;
    justify-content: center;
    font-size: 2vw;
}

/* Main flex container */
.middle-container {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: min(3rem, 8vw);
    max-width: 95vw;
    max-height: 95vh;
    animation: slideDown 1s;
}

/* Left text column */
.left-content {
    width: min(40vw, 350px);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.left-content h1 {
    margin: 0 0 0.5em 0;
    font-size: clamp(1.25rem, 4vw, 2rem);
    color: var(--accent-color);
    font-weight: bolder;
}

.left-content p {
    font-size: clamp(0.9rem, 1.5vw, 1.25rem);
    line-height: 1.4;
    margin: 0;
    font-family: "Space Grotesk";
}

/* Right grid of buttons — use explicit size instead of height:100% + aspect-ratio for Firefox */
.right-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: min(1rem, 3vw);
    align-items: stretch;
    user-select: none;
}

.right-content button {
    width: min(20vw, 150px);
    height: min(20vw, 150px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem;
    font: inherit;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    background-color: transparent;
    cursor: pointer;
    transition: background-color 0.2s ease;
    color: white;
}

.right-content button img {
    width: 3.2em;
    height: 3.2em;
    object-fit: contain;
}

.right-content button:hover {
    border: 2px var(--accent-color) dotted;
    background-color: rgba(255, 255, 255, 0.2);
}

.right-content button:active {
    background-color: rgba(255, 255, 255, 0.15);
}

.footer-buttons {
    opacity: 0;
    position: fixed;
    left: 50%;
    bottom: 1rem;
    transform: translateX(-50%);
    display: flex;
    gap: 2rem;
    align-items: center;
    animation: slideUp 1s 0.5s forwards;
    user-select: none;
}

.footer-buttons button {
    position: relative;
    width: 3em;
    height: 3em;
    border-radius: 50%;
    background-color: rgba(128, 128, 128, 0.2);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.5s ease-out;
}

.footer-buttons button img {
    width: 2em;
    height: 2em;
    object-fit: contain;
}

.footer-buttons button:hover {
    transform: scale(1.1);
}

.footer-buttons button:hover::before {
    content: '';
    position: absolute;
    inset: -0.65em;
    border: 0.2rem dotted var(--accent-color);
    border-radius: 50%;
    z-index: -1;
    animation: spin 2s linear infinite;
}

.displayFlex {
    animation: fadeInOut 3s forwards;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes slideDown {
    0% {
        opacity: 0;
        transform: translateY(-10%);
    }
    100% {
        opacity: 1;
        transform: translateY(0%);
    }
}

@keyframes slideUp {
    0% {
        opacity: 0;
        transform: translate(-50%, 300%);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, 0%);
    }
}

@keyframes fadeInOut {
    0% {
        opacity: 0;
        visibility: visible;
    }
    30% {
        opacity: 1;
    }
    70% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        visibility: hidden;
    }
}