#emscripten-form-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(10, 12, 20, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 16px;
    /* Keep clear of the notch/home indicator (requires viewport-fit=cover) */
    padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    box-sizing: border-box;
    z-index: 9999;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    animation: es-fade-in 0.15s ease-out;
}

#emscripten-form-overlay.hidden {
    display: none !important;
}

#emscripten-form-overlay *,
#emscripten-form-overlay *::before,
#emscripten-form-overlay *::after {
    box-sizing: border-box;
}

.emscripten-modal {
    position: relative;
    width: min(400px, 100%);
    /* Never exceed the viewport; scroll inside the card instead of overflowing top and bottom */
    max-height: 100%;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    background: #ffffff;
    color: #1f2328;
    padding: 28px 24px 24px;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35), 0 2px 6px rgba(0, 0, 0, 0.15);
    text-align: left;
    animation: es-pop-in 0.18s ease-out;
}

.emscripten-modal h3 {
    margin: 0 28px 20px 0; /* leave room for the close button */
    font-size: 1.05rem;
    font-weight: 600;
    line-height: 1.4;
}

.emscripten-modal form {
    display: flex;
    flex-direction: column;
    margin: 0;
}

.emscripten-modal label {
    margin-bottom: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #57606a;
}

.emscripten-modal input[type="text"] {
    width: 100%;
    padding: 10px 12px;
    margin: 0 0 20px;
    font: inherit;
    font-size: 1rem;
    color: inherit;
    background: #f6f8fa;
    border: 1px solid #d0d7de;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s, background-color 0.15s;
}

.emscripten-modal input[type="text"]:focus {
    background: #ffffff;
    border-color: #0969da;
    box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.25);
}

.emscripten-modal .emscripten-cooldown {
    margin: 0 0 16px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #bc4c00;
}

.emscripten-cooldown[hidden] {
    display: none;
}

.emscripten-modal-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.emscripten-modal-buttons button {
    padding: 9px 18px;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.15s, transform 0.05s;
}

.emscripten-modal-buttons button:active {
    transform: translateY(1px);
}

.emscripten-modal-buttons button:focus-visible,
.emscripten-close-x:focus-visible {
    outline: 2px solid #0969da;
    outline-offset: 2px;
}

.emscripten-btn-submit {
    background-color: #0969da;
    color: #ffffff;
}

.emscripten-btn-submit:hover {
    background-color: #0757b5;
}

.emscripten-btn-submit:disabled {
    background-color: #8c959f;
    cursor: not-allowed;
}

.emscripten-btn-cancel {
    background-color: #eaeef2;
    color: #1f2328;
}

.emscripten-btn-cancel:hover {
    background-color: #dde2e7;
}

.emscripten-close-x {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 28px;
    height: 28px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    line-height: 1;
    color: #6e7781;
    background: none;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
}

.emscripten-close-x:hover {
    background-color: #eaeef2;
    color: #1f2328;
}

/* Compact layout for short viewports, e.g. phones in landscape orientation */
@media (max-height: 500px) {
    #emscripten-form-overlay {
        padding-top: max(8px, env(safe-area-inset-top));
        padding-bottom: max(8px, env(safe-area-inset-bottom));
    }
    .emscripten-modal {
        width: min(600px, 100%);
        padding: 14px 18px 14px;
    }
    .emscripten-modal h3 {
        margin-bottom: 8px;
        font-size: 1rem;
    }
    .emscripten-modal p {
        margin: 0 0 8px;
        font-size: 0.8rem;
        line-height: 1.35;
    }
    .emscripten-modal label {
        margin-bottom: 4px;
    }
    .emscripten-modal input[type="text"] {
        padding: 7px 10px;
        margin-bottom: 10px;
    }
    .emscripten-modal-buttons button {
        padding: 7px 16px;
    }
    .emscripten-close-x {
        top: 8px;
        right: 8px;
    }
}

@media (prefers-color-scheme: dark) {
    .emscripten-modal {
        background: #1f2329;
        color: #e6edf3;
    }
    .emscripten-modal label {
        color: #9198a1;
    }
    .emscripten-modal input[type="text"],
    .emscripten-modal input[type="text"]:focus {
        background: #0d1117;
        border-color: #3d444d;
    }
    .emscripten-modal input[type="text"]:focus {
        border-color: #4493f8;
        box-shadow: 0 0 0 3px rgba(68, 147, 248, 0.3);
    }
    .emscripten-btn-cancel {
        background-color: #2f353d;
        color: #e6edf3;
    }
    .emscripten-btn-cancel:hover,
    .emscripten-close-x:hover {
        background-color: #3d444d;
        color: #e6edf3;
    }
}

@keyframes es-fade-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes es-pop-in {
    from { opacity: 0; transform: translateY(8px) scale(0.97); }
    to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
    #emscripten-form-overlay,
    .emscripten-modal {
        animation: none;
    }
}